SEARCH
Search Details
KAMEOKA MasanoriGraduate School of Health Sciences / Faculty of Health SciencesProfessor
Researcher basic information
■ Research news- 03 Oct. 2019, Analysis of HIV-1B in Indonesia illuminates transmission dynamics of the virus
- 18 May 2018, Genome editing method targets AIDS virus
- Human Immunodeficiency Virus type 1 (HIV-1)
- AIDS
- Dengue
- Virology
- Emerging and re-emerging infectious diseases
Research activity information
■ Paper- May 2025Search for host factors involved in flavivirus life cycle.[Refereed]
- Apr. 2025, 51, 2591 - 2604, EnglishAntimicrobial and antiviral activities and reaction mechanisms of an organic photocatalyst upon visible-light irradiation.[Refereed]
- BACKGROUND: The simultaneous occurrence of the COVID-19 pandemic and a dengue outbreak has posed significant challenges for governments and medical personnel in dengue-endemic countries like Indonesia. Several studies in dengue-endemic countries have reported cases of misdiagnosis between COVID-19 and dengue. Therefore, it is crucial to evaluate the potential cross-reactivity between SARS-CoV-2 antibodies and dengue. METHODS: This study aimed to confirm the serological cross-reaction between dengue virus and SARS-CoV-2 in Surabaya, East Java, which is a highly dengue-endemic city in Indonesia. In total, 238 serum samples with confirmed dengue that were collected before the emergence of COVID-19 were tested to detect the presence of reacting IgG and IgM antibodies (Abs) against SARS-CoV-2 via a rapid detection test (RDT) and enzyme-linked immunosorbent assay (ELISA). Samples from patients with dengue infection collected during the pandemic, from healthy volunteers predating the pandemic, and from patients with COVID-19 were used for comparison. RESULTS AND CONCLUSION: Few (6.7 %) of the pre-COVID-19 dengue Ab-positive serum samples showed reactive on SARS-CoV-2 in the RDT, with significantly lower IgG and IgM levels detected in ELISA compared with the dengue samples collected during the pandemic and the COVID-19 samples (P < 0.005). A comparable anti-SARS-CoV-2 IgG concentration was observed in the pre-COVID-19 dengue samples and healthy volunteers (P = 0.56), which also indicated other possibilities. In conclusion, our results suggested a low risk of cross-reactivity between dengue virus and SARS-CoV-2. However, they highlighted the need for caution when using and interpreting data obtained stemming from serological methods, to prevent false-positive results. Further studies are needed to evaluate the cross-reactivity between dengue virus, SARS-CoV-2, and other common human pathogens, as well as its effect on the serosurveys, treatment of these diseases, or vaccine efficacy.Nov. 2024, Heliyon, 10(21) (21), e39099, English, International magazine[Refereed]Scientific journal
- Statins, such as lovastatin, have been known to inhibit 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase. Statins were reported to moderately suppress hepatitis C virus (HCV) replication in cultured cells harboring HCV RNA replicons. We report here using an HCV cell culture (HCVcc) system that high concentrations of lovastatin (5-20 μg/mL) markedly enhanced the release of HCV infectious particles (virion) in the culture supernatants by up to 40 times, without enhancing HCV RNA replication, HCV protein synthesis, or HCV virion assembly in the cells. We also found that lovastatin increased the phosphorylation (activation) level of extracellular-signal-regulated kinase 5 (ERK5) in both the infected and uninfected cells in a dose-dependent manner. The lovastatin-mediated increase of HCV virion release was partially reversed by selective ERK5 inhibitors, BIX02189 and XMD8-92, or by ERK5 knockdown using small interfering RNA (siRNA). Moreover, we demonstrated that other cholesterol-lowering statins, but not dehydrolovastatin that is incapable of inhibiting HMG-CoA reductase and activating ERK5, enhanced HCV virion release to the same extent as observed with lovastatin. These results collectively suggest that statins markedly enhance HCV virion release from infected cells through HMG-CoA reductase inhibition and ERK5 activation.Jul. 2024, Microbiology and immunology, English, International magazine[Refereed]Scientific journal
- INTRODUCTION: Despite the widespread use of pre-exposure prophylaxis (PrEP) in preventing human immunodeficiency virus (HIV) transmission, scant information on HIV drug resistance mutations (DRMs) has been gathered over the past decade. This review aimed to estimate the pooled prevalence of pre-exposure prophylaxis and its two-way impact on DRM. METHODS: We systematically reviewed studies on DRM in pre-exposure prophylaxis according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis 2020 guidelines. PubMed, Cochrane, and SAGE databases were searched for English-language primary studies published between January 2001 and December 2023. The initial search was conducted on 9 August 2021 and was updated through 31 December 2023 to ensure the inclusion of the most recent findings. The registration number for this protocol review was CRD42022356061. RESULTS: A total of 26,367 participants and 562 seroconversion cases across 12 studies were included in this review. The pooled prevalence estimate for all mutations was 6.47% (95% Confidence Interval-CI 3.65-9.93), while Tenofovir Disoproxil Fumarate/Emtricitabine-associated drug resistance mutation prevalence was 1.52% (95% CI 0.23-3.60) in the pre-exposure prophylaxis arm after enrolment. A subgroup analysis, based on the study population, showed the prevalence in the heterosexual and men who have sex with men (MSM) groups was 5.53% (95% CI 2.55-9.40) and 7.47% (95% CI 3.80-12.11), respectively. Notably, there was no significant difference in the incidence of DRM between the pre-exposure prophylaxis and placebo groups (log-OR = 0.99, 95% CI -0.20 to 2.18, I2 = 0%; p = 0.10). DISCUSSION: Given the constrained prevalence of DRM, the World Health Organization (WHO) advocates the extensive adoption of pre-exposure prophylaxis. Our study demonstrated no increased risk of DRM with pre-exposure prophylaxis (p > 0.05), which is consistent with these settings. These findings align with the previous meta-analysis, which reported a 3.14-fold higher risk in the pre-exposure prophylaxis group than the placebo group, although the observed difference did not reach statistical significance (p = 0.21). CONCLUSIONS: Despite the low prevalence of DRM, pre-exposure prophylaxis did not significantly increase the risk of DRM compared to placebo. However, long-term observation is required to determine further disadvantages of extensive pre-exposure prophylaxis use. PROSPERO Number: CRD42022356061.Jun. 2024, AIDS research and therapy, 21(1) (1), 37 - 37, English, International magazine[Refereed]Scientific journal
- Human immunodeficiency virus type 1 (HIV-1) remains a serious health threat in Indonesia. In particular, the CRF01_AE viruses were the predominant HIV-1 strains in various cities in Indonesia. However, information on the dynamic transmission characteristics and spatial-temporal transmission of HIV-1 CRF01_AE in Indonesia is limited. Therefore, the present study examined the spatial-temporal transmission networks and evolutionary characteristics of HIV-1 CRF01_AE in Indonesia. To clarify the epidemiological connection between CRF01_AE outbreaks in Indonesia and the rest of the world, we performed phylogenetic studies on nearly full genomes of CRF01_AE viruses isolated in Indonesia. Our results showed that five epidemic clades, namely, IDN clades 1-5, of CRF01_AE were found in Indonesia. To determine the potential source and mode of transmission of CRF01_AE, we performed Bayesian analysis and built maximum clade credibility trees for each clade. Our study revealed that CRF01_AE viruses were commonly introduced into Indonesia from Southeast Asia, particularly Thailand. The CRF01_AE viruses might have spread through major pandemics in Asian countries, such as China, Vietnam, and Laos, rather than being introduced directly from Africa in the early 1980s. This study has major implications for public health practice and policy development in Indonesia. The contributions of this study include understanding the dynamics of HIV-1 transmission that is important for the implementation of HIV disease control and prevention strategies in Indonesia.May 2024, Scientific reports, 14(1) (1), 9917 - 9917, English, International magazine[Refereed]Scientific journal
- Apr. 2024, Cells, English[Refereed]Scientific journal
- Apr. 2024, Acta Medica Indonesiana, 56(2) (2), 168 - 175Genotypic Analysis of Transmitted and Acquired HIV Drug Resistance in People Living with HIV/AIDS in Surabaya, Indonesia, from 2018 to 2019[Refereed]Scientific journal
- The coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has necessitated the global development of countermeasures since its outbreak. However, current therapeutics and vaccines to stop the pandemic are insufficient and this is mainly because of the emergence of resistant variants, which requires the urgent development of new countermeasures, such as antiviral drugs. Replicons, self-replicating RNAs that do not produce virions, are a promising system for this purpose because they safely recreate viral replication, enabling antiviral screening in biosafety level (BSL)-2 facilities. We herein constructed three pCC2Fos-based RNA replicons lacking some open reading frames (ORF) of SARS-CoV-2: the Δorf2-8, Δorf2.4, and Δorf2 replicons, and validated their replication in Huh-7 cells. The functionalities of the Δorf2-8 and Δorf2.4 replicons for antiviral drug screening were also confirmed. We conducted puromycin selection following the construction of the Δorf2.4-puro replicon by inserting a puromycin-resistant gene into the Δorf2.4 replicon. We observed the more sustained replication of the Δorf2.4-puro replicon by puromycin pressure. The present results will contribute to the establishment of a safe and useful replicon system for analyzing SARS-CoV-2 replication mechanisms as well as the development of novel antiviral drugs in BSL-2 facilities.Jul. 2023, Virus research, 334, 199176 - 199176, English, International magazine[Refereed]Scientific journal
- Hepatitis B virus (HBV) is a leading cause of chronic hepatitis, liver cirrhosis, and hepatocellular carcinoma. Current therapeutic drugs for chronic HBV infection use IFN and nucleos(t)ide analogs; however, their efficacy is limited. Thus, there is an urgent need to develop new antivirals for HBV therapy. In this study, we identified a plant-derived polyphenolic bioflavonoid, amentoflavone, as a new anti-HBV compound. Amentoflavone treatment dose-dependently inhibited HBV infection in HBV-susceptible cells with HepG2-hNTCP-C4 and primary human hepatocyte PXB-cells. A mode-of-action study showed that amentoflavone inhibits the viral entry step, but not the viral internalization and early replication processes. Attachment of HBV particles as well as HBV preS1 peptide to HepG2-hNTCP-C4 cells was inhibited by amentoflavone. The transporter assay revealed that amentoflavone partly inhibits uptake of sodium taurocholate cotransporting polypeptide (NTCP)-mediated bile acid. Furthermore, effect of various amentoflavone analogs on HBs and HBe production from HBV-infected HepG2-hNTCP-C4 cells was examined. Robustaflavone exhibited comparable anti-HBV activity to that of amentoflavone and an amentoflavone-7,4', 4‴-trimethyl ether derivative (sciadopitysin) with moderate anti-HBV activity. Cupressuflavone or the monomeric flavonoid apigenin did not exhibit the antiviral activity. Amentoflavone and its structurally related biflavonoids may provide a potential drug scaffold in the design of a new anti-HBV drug inhibitor targeting NTCP.Jun. 2023, Microbiology and immunology, English, International magazine[Refereed]Scientific journal
- BACKGROUND: Biomarkers that are cost-effective and accurate for predicting severe coronavirus disease 2019 (COVID-19) are urgently needed. We would like to assess the role of various inflammatory biomarkers on admission as disease severity predictors and determine the optimal cut-off of the neutrophile-to-lymphocyte ratio (NLR) for predicting severe COVID-19. METHODS: We conducted a cross-sectional study in six hospitals in Bali and recruited real-time PCR-confirmed COVID-19 patients aged >18 y from June to August 2020. Data collection included each patient's demographic, clinical, disease severity and hematological data. Multivariate and receiver operating characteristic curve analyses were performed. RESULTS: A total of 95 Indonesian COVID-19 patients were included. The highest NLR among severe patients was 11.5±6.2, followed by the non-severe group at 3.3±2.8. The lowest NLR was found in the asymptomatic group (1.9±1.1). The CD4+ and CD8+ values were lowest in the critical and severe disease groups. The area under the curve of NLR was 0.959. Therefore, the optimal NLR cut-off value for predicting severe COVID-19 was ≥3.55, with sensitivity at 90.9% and a specificity of 16.7%. CONCLUSIONS: Lower CD4+ and CD8+ and higher NLR values on admission are reliable predictors of severe COVID-19 among Indonesian people. NLR cut-off ≥3.55 is the optimal value for predicting severe COVID-19.Apr. 2023, Transactions of the Royal Society of Tropical Medicine and Hygiene, English, International magazine[Refereed]Scientific journal
- Mar. 2023, Bulletin of Health Sciences Kobe, 38, 29 - 43, EnglishViability and acceptability of self-sampling as a primary screening method for sexually transmitted infections in female Kobe University students.[Refereed]Scientific journal
- Human immunodeficiency virus type 1 (HIV-1) is characterized by a large degree of genetic variability because of high rates of recombination and mutation, sizable population sizes, and rapid replication. Therefore, the present study investigated HIV-1 subtype distribution and the appearance of drug resistance mutations (DRMs) in viruses that are prevalent in Makassar, South Sulawesi, Indonesia. The HIV-1 pol, env, and gag genes were amplified from 63 infected individuals and sequenced for a subtyping analysis. CRF01_AE was identified as the predominant HIV-1 circulating recombinant form (CRF) in Makassar, South Sulawesi, Indonesia. Subtype B and recombinant viruses containing CRF01_AE, CRF02_AG, and/or subtype B gene fragments were also detected. Several major DRMs against non-nucleoside reverse transcriptase inhibitors were found among antiretroviral therapy (ART)-experienced subjects, while ART-naive subjects did not possess any transmitted drug resistance. The prevalence of DRMs was very high among ART-experienced subjects; therefore, further surveillance is required in this region.Jan. 2023, AIDS research and human retroviruses, English, International magazine[Refereed]Scientific journal
- Chronic hepatitis C virus (HCV) infection can lead to liver cirrhosis and hepatocellular carcinoma. Although current medications using direct-acting antivirals (DAAs) are highly effective and well-tolerated for treating patients with chronic HCV, high prices and the existence of DAA-resistant variants hamper treatment. There is thus a need for easily accessible antivirals with different mechanisms of action. During the screening of Indonesian medicinal plants for anti-HCV activity, we found that a crude extract of Dryobalanops aromatica leaves possessed strong antiviral activity against HCV. Bioassay-guided purification identified an oligostilbene, vaticanol B, as an active compound responsible for the anti-HCV activity. Vaticanol B inhibited HCV infection in a dose-dependent manner with 50% effective and cytotoxic concentrations of 3.6 and 559.5 µg/mL, respectively (Selectivity Index: 155.4). A time-of-addition study revealed that the infectivity of HCV virions was largely lost upon vaticanol B pretreatment. Also, the addition of vaticanol B following viral entry slightly but significantly suppressed HCV replication and HCV protein expression in HCV-infected and a subgenomic HCV replicon cells. Thus, the results clearly demonstrated that vaticanol B acted mainly on the viral entry step, while acting weakly on the post-entry step as well. Furthermore, co-treatment of the HCV NS5A inhibitor daclatasvir with vaticanol B increased the anti-HCV effect. Collectively, the present study has identified a plant-derived oligostilbene, vaticanol B, as a novel anti-HCV compound.2023, Biological & pharmaceutical bulletin, 46(8) (8), 1079 - 1087, English, Domestic magazine[Refereed]Scientific journal
- Infection with viruses belonging to the genus Flavivirus, such as Japanese encephalitis virus (JEV) and dengue virus (DENV), is a worldwide health problem. Vaccines against JEV and DENV are currently available. However, the dengue vaccine possibly increases the risk of severe dengue due to antibody-dependent enhancement (ADE). Moreover, the Japanese encephalitis (JE) vaccine reportedly induces cross-reactive ADE-prone antibodies against DENV, potentially leading to symptomatic dengue. Therefore, it is necessary to eliminate the risk of ADE through vaccination. In this study, we attempted to develop a JE vaccine that does not induce ADE of DENV infection using an epitope modification strategy. We found that an ADE-prone monoclonal antibody cross-reactive to DENV and JEV recognizes the 106th amino acid residue of the E protein of JEV (E-106). The JE DNA vaccine with a mutation at E-106 (E-106 vaccine) induced comparable neutralizing antibody titers against JEV to those induced by the wild-type JE DNA vaccine. Meanwhile, the E-106 vaccine induced 64-fold less cross-reactive ADE-prone antibodies against DENV. The mutation did not compromise the protective efficacy of the vaccine in the lethal JEV challenge experiment. Altogether, the modification of a single amino acid residue identified in this study helped in the development of an ADE-free JE vaccine.Aug. 2022, Vaccines, 10(9) (9), English, International magazine[Refereed]Scientific journal
- The increase in antibiotic resistance in non-typhoidal Salmonella enterica (NTS) has been confirmed in Indonesia by this study. We confirmed the virulence genes and antimicrobial susceptibilities of clinical NTS (n = 50) isolated from chicken meat in Indonesia and also detected antimicrobial resistance genes. Of 50 strains, 30 (60%) were non-susceptible to nalidixic acid (NA) and all of them had amino acid mutations in gyrA. Among 27 tetracycline (TC) non-susceptible strains, 22 (81.5%) had tetA and/or tetB. The non-susceptibility rates to ampicillin, gentamicin or kanamycin were lower than that of NA or TC, but the prevalence of blaTEM or aadA was high. Non-susceptible strains showed a high prevalence of virulence genes compared with the susceptible strains (tcfA, p = 0.014; cdtB, p < 0.001; sfbA, p < 0.001; fimA, p = 0.002). S. Schwarzengrund was the most prevalent serotype (23 strains, 46%) and the most frequently detected as multi-antimicrobial resistant. The prevalence of virulence genes in S. Schwarzengrund was significantly higher than other serotypes in hlyE (p = 0.011) and phoP/Q (p = 0.011) in addition to the genes above. In conclusion, NTS strains isolated from Indonesian chicken had a high resistance to antibiotics and many virulence factors. In particular, S. Schwarzengrund strains were most frequently detected as multi-antimicrobial resistant and had a high prevalence of virulence genes.May 2022, Pathogens (Basel, Switzerland), 11(5) (5), English, International magazine[Refereed]Scientific journal
- The host transmembrane protein MARCH8 is a RING finger E3 ubiquitin ligase that downregulates various host transmembrane proteins, such as MHC-II. We have recently reported that MARCH8 expression in virus-producing cells impairs viral infectivity by reducing virion incorporation of not only HIV-1 envelope glycoprotein but also vesicular stomatitis virus G-glycoprotein through two different pathways. However, the MARCH8 inhibition spectrum remains largely unknown. Here, we show the antiviral spectrum of MARCH8 using viruses pseudotyped with a variety of viral envelope glycoproteins. Infection experiments revealed that viral envelope glycoproteins derived from the rhabdovirus, arenavirus, coronavirus, and togavirus (alphavirus) families were sensitive to MARCH8-mediated inhibition. Lysine mutations at the cytoplasmic tails of rabies virus-G, lymphocytic choriomeningitis virus glycoproteins, SARS-CoV and SARS-CoV-2 spike proteins, and Chikungunya virus and Ross River virus E2 proteins conferred resistance to MARCH8. Immunofluorescence showed impaired downregulation of the mutants of these viral envelope glycoproteins by MARCH8, followed by lysosomal degradation, suggesting that MARCH8-mediated ubiquitination leads to intracellular degradation of these envelopes. Indeed, rabies virus-G and Chikungunya virus E2 proteins proved to be clearly ubiquitinated. We conclude that MARCH8 has inhibitory activity on a variety of viral envelope glycoproteins whose cytoplasmic lysine residues are targeted by this antiviral factor. IMPORTANCE A member of the MARCH E3 ubiquitin ligase family, MARCH8, downregulates many different kinds of host transmembrane proteins, resulting in the regulation of cellular homeostasis. On the other hands, MARCH8 acts as an antiviral factor when it binds to and downregulates HIV-1 envelope glycoprotein and vesicular stomatitis virus G-glycoprotein that are viral transmembrane proteins. This study reveals that, as in the case of cellular membrane proteins, MARCH8 shows broad-spectrum inhibition against various viral envelope glycoproteins by recognizing their cytoplasmic lysine residues, resulting in lysosomal degradation.Feb. 2022, Microbiology spectrum, 10(1) (1), e0061821, English, International magazine[Refereed]Scientific journal
- The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is a global threat. To forestall the pandemic, developing safe and effective vaccines is necessary. Because of the rapid production and little effect on the host genome, mRNA vaccines are attractive, but they have a relatively low immune response after a single dose. Replicon RNA (repRNA) is a promising vaccine platform for safety and efficacy. RepRNA vaccine encodes not only antigen genes but also the genes necessary for RNA replication. Thus, repRNA is self-replicative and can play the role of an adjuvant by itself, which elicits robust immunity. This study constructed and evaluated a repRNA vaccine in which the gene encoding the spike (S) protein of SARS-CoV-2 was inserted into a replicon of yellow fever virus 17D strain. Upon electroporation of this repRNA into baby hamster kidney cells, the S protein and yellow fever virus protein were co-expressed. Additionally, the self-replication ability of repRNA vaccine was confirmed using qRT-PCR, demonstrating its potency as a vaccine. Immunization of C57BL/6 mice with 1 μg of the repRNA vaccine induced specific T-cell responses but not antibody responses. Notably, the T-cell response induced by the repRNA vaccine was significantly higher than that induced by the nonreplicative RNA vaccine in our experimental model. In the future, it is of the essence to optimize vaccine administration methods and improve S protein expression, like protection of repRNA by nanoparticles and evasion of innate immunity of the host to enhance the immune-inducing ability of the repRNA vaccine.2022, PloS one, 17(10) (10), e0274829, English, International magazine[Refereed]Scientific journal
- Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease 2019 (COVID-19), is transmitted mainly by droplet or aerosol infection; however, it may also be transmitted by contact infection. SARS-CoV-2 that adheres to environmental surfaces remains infectious for several days. We herein attempted to inactivate SARS-CoV-2 and influenza A virus adhering to an environmental surface by dry fogging hypochlorous acid solution and hydrogen peroxide solution. SARS-CoV-2 and influenza virus were air-dried on plastic plates and placed into a test chamber for inactivation by the dry fogging of these disinfectants. The results obtained showed that the dry fogging of hypochlorous acid solution and hydrogen peroxide solution inactivated SARS-CoV-2 and influenza A virus in CT value (the product of the disinfectant concentration and contact time)-dependent manners. SARS-CoV-2 was more resistant to the virucidal effects of aerosolized hypochlorous acid solution and hydrogen peroxide solution than influenza A virus; therefore, higher concentrations of disinfectants or longer contact times were required to inactivate SARS-CoV-2 than influenza A virus. The present results provide important information for the development of a strategy that inactivates SARS-CoV-2 and influenza A virus on environmental surfaces by spatial fogging.Corresponding, 2022, PloS one, 17(4) (4), e0261802, English, International magazine[Refereed]Scientific journal
- Dengue virus (DENV), from the genus flavivirus of the family flaviviridae, causes serious health problems globally. Human monoclonal antibodies (HuMAb) can be used to elucidate the mechanisms of neutralization and antibody-dependent enhancement (ADE) of DENV infections, leading to the development of a vaccine or therapeutic antibodies. Here, we generated eight HuMAb clones from an Indonesian patient infected with DENV. These HuMAbs exhibited the typical characteristics of weak neutralizing antibodies including high cross-reactivity with other flaviviruses and targeting of the fusion loop epitope (FLE). However, one of the HuMAbs, 3G9, exhibited strong neutralization (NT50 < 0.1 μg/ml) and possessed a high somatic hyper-mutation rate of the variable region, indicating affinity-maturation. Administration of this antibody significantly prolonged the survival of interferon-α/β/γ receptor knockout C57BL/6 mice after a lethal DENV challenge. Additionally, Fc-modified 3G9 that had lost their in vitro ADE activity showed enhanced therapeutic potency in vivo and competed strongly with an ADE-prone antibody in vitro. Taken together, the affinity-matured FLE-targeting antibody 3G9 exhibits promising features for therapeutic application including a low NT50 value, potential for treatment of various kinds of mosquito-borne flavivirus infection, and suppression of ADE. This study demonstrates the therapeutic potency of affinity-matured FLE-targeting antibodies.Jun. 2021, Scientific reports, 11(1) (1), 12987 - 12987, English, International magazine[Refereed]Scientific journal
- (一社)日本感染症学会, Apr. 2021, 感染症学雑誌, 95(臨増) (臨増), 197 - 197, Japaneseインドネシアにおける鶏肉由来のキノロン耐性non-typhoidal Salmonella entericaの遺伝子解析
- (一社)日本感染症学会, Apr. 2021, 感染症学雑誌, 95(臨増) (臨増), 241 - 241, Japaneseインドネシアにおけるヒト及び環境由来のESBL産生Escherichia coliの分布調査
- The analysis of neutralizing epitope of dengue virus (DENV) is important for the development of an effective dengue vaccine. A potent neutralizing mouse monoclonal antibody named 7F4 was previously reported and, here, we further analyzed the detailed epitope of this antibody. 7F4 recognized a novel conformational epitope close to the N-67 glycan on the envelope protein. This antibody was specific to the DENV that lacks N-67 glycan, including the Mochizuki strain. Interestingly, the Mochizuki strain acquired N-67 glycan by 7F4 selective pressure. Considering that most of the currently circulating DENVs possess N-67 glycan, DENVs may have evolved to escape from antibodies targeting 7F4 epitope, suggesting the potency of this neutralizing epitope. In addition, this study demonstrated the existence of the epitopes close to 7F4 epitope and their crucial role in neutralization. In conclusion, the epitopes close to the N-67 glycan are attractive targets for the dengue vaccine antigen. Further analysis of this epitope is warranted.Mar. 2021, Virus research, 294, 198278 - 198278, English, International magazine[Refereed]Scientific journal
- The development of specific antiviral compounds to SARS-CoV-2 is an urgent task. One of the obstacles for the antiviral development is the requirement of biocontainment because infectious SARS-CoV-2 must be handled in a biosafety level-3 laboratory. Replicon, a non-infectious self-replicative viral RNA, could be a safe and effective tool for antiviral evaluation. Herein, we generated a PCR-based SARS-CoV-2 replicon. Eight fragments covering the entire SARS-CoV-2 genome except S, E, and M genes were amplified with HiBiT-tag sequence by PCR. The amplicons were ligated and in vitro transcribed to RNA. The cells electroporated with the replicon RNA showed more than 3000 times higher luminescence than MOCK control cells at 24 h post-electroporation, indicating robust translation and RNA replication of the replicon. The replication was drastically inhibited by remdesivir, an RNA polymerase inhibitor for SARS-CoV-2. The IC50 of remdesivir in this study was 0.29 μM, generally consistent to the IC50 obtained using infectious SARS-CoV-2 in a previous study (0.77 μM). Taken together, this system could be applied to the safe and effective antiviral evaluation without using infectious SARS-CoV-2. Because this is a PCR-based and transient replicon system, further improvement including the establishment of stable cell line must be achieved.Jan. 2021, Scientific reports, 11(1) (1), 2229 - 2229, English, International magazine[Refereed]Scientific journal
- JC polyomavirus (JCPyV) causes progressive multifocal leukoencephalopathy (PML), a demyelinating disease of the central nervous system affecting immunocompromised patients. The study of PML-type JCPyV in vitro has been limited owing to the inefficient propagation of the virus in cultured cells. In this study, we carried out long-term culture of COS-7 cells (designated as COS-IMRb cells) transfected with PML-type M1-IMRb, an adapted viral DNA with a rearranged non-coding control region (NCCR). The JCPyV derived from COS-IMRb cells were characterized by analyzing the viral replication, amount of virus by hemagglutination (HA), production of viral protein 1 (VP1), and structure of the NCCR. HA assays indicated the presence of high amounts of PML-type JCPyV in COS-IMRb cells. Immunostaining showed only a small population of JCPyV carrying COS-IMRb cells to be VP1-positive. Sequencing analysis of the NCCR of JCPyV after long-term culture revealed that the NCCR of M1-IMRb was conserved in COS-IMRb cells without any point mutation. The JCPyV genomic DNA derived from a clone of COS-IMRb-3 cells was detected, via Southern blotting, as a single band of approximately 5.1 kbp without deletion. These findings suggest the potential of using COS-IMRb-3 cells as a useful tool for screening anti-JCPyV drugs.Jan. 2021, Japanese journal of infectious diseases, 74(1) (1), 48 - 53, English, Domestic magazine[Refereed]Scientific journal
- The HIV type 1 (HIV-1) epidemic has continued to grow in Indonesia; however, continuous updates on the epidemiology of HIV-1 in Indonesia remain challenging because it is the biggest archipelago in the world. Furthermore, the emergence of HIV drug resistance (HIVDR) has had a negative impact on the treatment of infected individuals. In this study, we performed HIV-1 subtyping and the detection of HIVDR in 105 HIV-1-infected individuals residing in various cities in Indonesia during 2018-2019. The results obtained identified CRF01_AE as the major epidemic HIV-1 strain, responsible for 81.9% of infection cases, followed by subtype B (12.4%), CRF02_AG (3.8%), CRF52_01B (1%), and a recombinant between CRF01_AE and CRF02_AG (1.0%). Major drug resistance-associated mutations against reverse transcriptase inhibitors were detected in 20% of samples. These results suggest that CRF01_AE is a major HIV-1 strain in Indonesia, while CRF02_AG is emerging. The prevalence of HIVDR in Indonesia needs to be monitored.Nov. 2020, AIDS research and human retroviruses, 36(11) (11), 957 - 963, English, International magazine[Refereed]Scientific journal
- HIV-1 cure strategy by means of proviral knock-out using CRISPR-Cas9 has been hampered by the emergence of viral resistance against the targeting guide RNA (gRNA). Here, we proposed multiple, concentrated gRNA attacks against HIV-1 regulatory genes to block viral escape. The T cell line were transduced with single and multiple gRNAs targeting HIV-1 tat and rev using lentiviral-based CRISPR-Cas9, followed by replicative HIV-1NL4-3 challenge in vitro. Viral p24 rebound was observed for almost all gRNAs, but multiplexing three tat-targeting gRNAs maintained p24 suppression and cell viability, indicating the inhibition of viral escape. Multiplexed tat gRNAs inhibited acute viral replication in the 2nd round of infection, abolished cell-associated transmission to unprotected T cells, and maintained protection through 45 days, post-infection (dpi) after a higher dose of HIV-1 infection. Finally, we describe here for the first time the assembly of all-in-one lentiviral vectors containing three and six gRNAs targeting tat and rev. A single-vector tat-targeting construct shows non-inferiority to the tat-targeting multi-vector in low-dose HIV-1 infection. We conclude that Cas9-induced, DNA repair-mediated mutations in tat are sufficiently deleterious and deplete HIV-1 fitness, and multiplexed disruption of tat further limits the possibility of an escape mutant arising, thus elevating the potential of CRISPR-Cas9 to achieve a long-term HIV-1 cure.Oct. 2020, Viruses, 12(11) (11), English, International magazine[Refereed]Scientific journal
- The Dominance of CRF01_AE and the Emergence of Drug Resistance Mutations Among Antiretroviral Therapy-Experienced, HIV-1-infected Individuals in Medan, Indonesia.BACKGROUND: human immunodeficiency virus type 1 (HIV-1) infection is a serious public health threat worldwide. Medan is one example of big cities in Indonesia with a high prevalence of HIV-1 infection; however, quite a limited study had conducted for detecting the circulation of HIV-1 subtypes in Medan. In addition, a serious factor that can implicate the treatment of HIV-1-infected individuals is the emergence of drug resistance mutations. Thus, the information on HIV-1 infection is important to improve the treatment for infected individuals. METHODS: sixty-seven antiretroviral therapy-experienced, HIV-1-infected individuals were recruited for this study. HIV-1 pol genes encoding protease (PR genes) and reverse transcriptase (RT gene), as well as env and gag genes, were amplified from DNA derived from peripheral blood samples. HIV-1 subtyping was conducted to study the dominant HIV-1 subtype circulating in the region. In addition, the emergence of drug resistance mutations was analyzed based on the guidelines published by the International Antiviral Society-United States of America (IAS-USA). RESULTS: the dominant HIV-1 subtype found in Medan was CRF01_AE (77.6%). In addition, another subtype and recombinant viruses such as recombinants between CRF01_AE and subtype B (12.2%), subtype B (4.1%), and CRF02_AG (4.1%) were also found. Drug resistance-associated major mutations were found in 21.6% (8/37) of RT genes and 3.1% (1/32) of PR genes studied. CONCLUSION: our study showed that the dominant subtype found in ART-experienced, HIV-1-infected individuals residing in Medan was CRF01_AE. The emergence of drug resistance mutations in RT and PR genes indicated the importance to monitor the prevalence of drug resistance mutations among HIV-1-infected individuals in Medan.Oct. 2020, Acta medica Indonesiana, 52(4) (4), 366 - 374, English, International magazine[Refereed]Scientific journal
- Introduction: The present study investigated the HIV-1 subtype classification in addition to prevalence of drug resistance mutations (DRMs) in antiretroviral therapy (ART)-experienced and ART-naïve residents of Pontianak, West Kalimantan, Indonesia. Methods: Whole blood samples collected from 30 HIV-1-infected individuals, comprising 19 ART-experienced and 11 ART-naïve individuals, were subjected to RNA and DNA extraction, followed by HIV-1 genes amplification and sequencing analysis. HIV-1 subtyping was classified on viral pol genes encoding reverse transcriptase (RT gene) and protease (PR gene) accompanied by the env and gag genes. DRMs in the RT and PR genes were also analyzed. Results: CRF01_AE was identified as the predominant circulating recombinant form (CRF) of HIV-1 in both ART-experienced and ART-naïve individuals. In addition, CRF02_AG, subtype B, recombinant virus expressing CRF01_AE and subtype B viral genomic fragments, also recombinant virus containing CRF01_AE and CRF02_AG genomic fragments were also identified. Acquired drug resistance (ADR) was identified in 28.5% of ART-experienced individuals, while no transmitted drug resistance was identified in ART-naïve individuals. Conclusions: This study identified CRF01_AE as the most predominant HIV-1 CRF distributing in Pontianak, Indonesia. The prevalence of ADR is considered to be high; thus, further surveillance is needed in this region.Sep. 2020, Germs, 10(4) (4), 174 - 183, English, International magazine[Refereed]Scientific journal
- The presence of transmitted drug resistance (TDR) in human immunodeficiency virus type 1 (HIV-1) infected individuals naive to antiretroviral therapy, may affect the effectiveness of treatment. Jakarta, the capital city of Indonesia, recorded the highest number of cumulative HIV infection cases in the country. This study aimed to identify on the appearance of TDR, as well as to identify HIV-1 subtypes circulating among treatment-naive individuals in Jakarta. Whole blood samples collected from 43 HIV-1 infected, treatment-naive individuals. Viral subtyping and drug resistance testing were performed on HIV-1 pol genes amplified using nested polymerase chain reaction. CRF01_AE was detected most frequently in Jakarta (73.08%). Drug resistance-related major mutation was not detected in protease fragments of pol gene, but two major mutations, K103N (6.67%) and Y181C (6.67%), were detected in reverse transcriptase fragments of pol gene. Our results suggest that TDR was emerged in Jakarta at a certain extent, thus further surveillance study to monitor the TDR prevalence and circulating HIV-1 subtypes in this region is considered to be necessary.Jul. 2020, Infectious disease reports, 12(Suppl 1) (Suppl 1), 8740 - 8740, English, International magazine[Refereed]Scientific journal
- To eradicate human immunodeficiency virus type 1 (HIV-1) infection, a comprehensive strategy including preventive vaccine development is needed. Envelope glycoproteins (Env) play a central role in viral infection and are the major targets of humoral immune responses. Therefore, Env is a candidate vaccine antigen, and its characterization is necessary for vaccine development. The characterization of the transmitted/founder (T/F; i.e., recently infected) virus that is responsible for the establishment of infection and induction of primary anti-HIV-1 immune responses is important. We herein established HIV-1 env clones derived from recently infected Indonesian individuals. All env genes were classified into CRF01_AE. The immunological characterization of env clones was performed by neutralization tests using a series of broadly neutralizing antibodies. The present study is the first to immunologically characterize the CRF01_AE T/F virus circulating in Indonesia.Oct. 2019, AIDS research and human retroviruses, 36(3) (3), 242 - 247, English, International magazine[Refereed]Scientific journal
- Human immunodeficiency virus type 1 (HIV-1) is a major causative agent of acquired immune deficiency syndrome. Subtype C (HIV-1C) is the most prevalent HIV-1 subtype worldwide. Although it is highly prevalent in Nepal, genotypic information on Nepalese HIV-1C is limited. We herein investigated the origin and dynamics of HIV-1C in Nepal. Nearly full-length sequencing of Nepalese HIV-1C strains and phylogenetic analyses were performed. The results obtained showed that Nepalese HIV-1C is closely related to the Indian and southern African strains and the introduction of HIV-1C into Nepal was estimated to be in the mid-1980s. These results suggest that multiple HIV-1C strains entered Nepal in the mid-1980s, and this was followed by a marked increase in the number of infection cases for the next decade. These results reflect the current transmission dynamics of HIV-1C strains in Nepal and provide valuable information for HIV monitoring and vaccine development.Sep. 2019, AIDS research and human retroviruses, 35(9) (9), 870 - 875, English, International magazine[Refereed]Scientific journal
- Human immunodeficiency virus type 1 (HIV-1) and acquired immunodeficiency syndrome (AIDS) represent a major public health concern in Indonesia. Although circulating recombinant form (CRF) 01_AE is a predominant subtype in Indonesia, HIV-1 subtype B (HIV-1B) is also widely prevalent. However, the viral genetic evolution, spatial origins, and patterns of transmission of HIV-1B in Indonesia remain unclear. In the present study, we described the evolutionary characteristics and spatial-temporal transmission networks of HIV-1B in Indonesia. To elucidate the epidemiological link between HIV-1B epidemics in Indonesia and those in the remainder of the world, we conducted phylogenetic analyses of HIV-1B strains in Indonesia. Based on the results obtained, at least three epidemic clades [the Indonesia, United States (US), and China clades] of HIV-1B were found to be prevalent in Indonesia. In order to identify the potential source and transmission route of Indonesian HIV-1B strains, we performed Bayesian analyses and constructed Maximum clade credibility trees of each clade. Although some HIV-1B strains in Indonesia were introduced from Thailand, the prevalent HIV-1B strains appeared to have been directly introduced from Europe or America. Indonesian HIV-1B may have spread via the main dispersal of pandemic HIV-1B strains via the US from the Caribbean region rather than being directly introduced from Africa.Sep. 2019, Scientific reports, 9(1) (1), 13986 - 13986, English, International magazine[Refereed]Scientific journal
- Bali, the first province to report a case of HIV in 1987, was placed sixth among Indonesian provinces with the highest cumulative number of HIV cases in 2017. As a popular tourist destination, the spread of genetic variants of HIV through international travel may become a cause for concern in Bali. Tourism is mostly concentrated in south Bali; thus, HIV in less popular regions in north Bali, such as Buleleng Regency, may have viral characteristics different from that in south Bali. Forty-three protease (PR), 40 reverse transcriptase (RT), 27 gag, and 23 env genes were sequenced from 48 samples derived from antiretroviral treatment-experienced individuals. Subtyping revealed CRF01_AE as the dominant circulating recombinant form of HIV-1 in north Bali. Although no major mutation was detected in PR genes, several major mutations were identified in 4 out of the 40 RT genes (10%), indicating the emergence of HIV-1 drug resistance in this region.Aug. 2019, AIDS research and human retroviruses, 35(8) (8), 769 - 774, English, International magazine[Refereed]Scientific journal
- The Emergence of HIV-1 Transmitted Drug Resistance Mutations Among Antiretroviral Therapy-naive Individuals in Buleleng, Bali, Indonesia.BACKGROUND: the global scale-up of antiretroviral therapy (ART) is the primary factor contributing to the decline in deaths from acquired immune deficiency syndrome (AIDS)-related illnesses. However, the emergence of transmitted drug resistance (TDR) compromises the effects of ART in treatment-naïve individuals, which may hinder treatment success. The present study aimed to identify the presence of TDR among treatment-naive individuals in Buleleng, Bali, which is currently ranked sixth among Indonesian provinces with the highest cumulative human immunodeficiency virus type 1 (HIV-1) infection cases. METHODS: thirty-nine ART-naive individuals in Buleleng Regency General Hospital were enrolled in the present study. Blood samples from participants were subjected to a genotypic analysis. RESULTS: 28 protease (PR) and 30 reverse transcriptase (RT) genes were successfully amplified and sequenced from 37 samples. HIV-1 subtyping revealed CRF01_AE as the dominant circulating recombinant form in the region. No TDR for PR inhibitors was detected; however, TDR for RT inhibitors was identified in five out of 30 samples (16.7%). CONCLUSION: these results indicate the emergence of TDR among ART-naive individuals in Buleleng, Bali. This issue warrants serious consideration because TDR may hamper treatment success and reduce ART efficacy among newly diagnosed individuals. Continuous surveillance with a larger sample size is necessary to monitor TDR among ART-naive individuals.Jul. 2019, Acta medica Indonesiana, 51(3) (3), 197 - 204, English, International magazine[Refereed]Scientific journal
- SEAMEO TROPMED Network, Jul. 2019, Southeast Asian Journal of Tropical Medicine and Public Health, 50(4) (4), 651 - 662, EnglishComparison of antibody-dependent cellular cytotoxicity activity elicited in recent and chronic hiv-1-infected thai individualsScientific journal
- Elsevier {BV}, Jul. 2019, Journal of Virus Eradication, 5, 17 - 18, English, International magazine, Co-authored internationally[Refereed]Scientific journal
- Manado, the capital city of North Sulawesi, is a unique region in Indonesia because of its religion. We collected peripheral blood samples from 63 individuals on antiretroviral therapy. The amplification of viral genomic fragments, viral subtyping, detection of HIV drug resistance-associated mutations (DRAMs), and phylogenetic analyses were performed. Viral subtyping revealed that the most prevalent HIV type 1 (HIV-1) subtype/circulating recombinant form (CRF) was CRF01_AE (84.1%), followed by subtype B (6.8%) and recombinants between CRF01_AE and CRF02_AG (4.5%). Although no major DRAMs were present in protease genes, they were detected in reverse transcriptase (RT) genes. Nine of 38 samples (23.7%) had major DRAMs against nucleoside RT inhibitors (NRTIs) and/or non-NRTIs. The results of phylogenetic analyses indicated that CRF01_AE in North Sulawesi is related to that in Bali. Therefore, Bali may play an important role in circulating CRF01_AE in North Sulawesi.Apr. 2019, AIDS research and human retroviruses, 35(4) (4), 407 - 413, English, International magazine[Refereed]Scientific journal
- Two new antibiotics, designated virantmycin B (1) and C (2), were isolated from the cultured broth of Streptomyces sp. AM-2504. Compounds 1 and 2 were purified by Diaion HP-20, silica gel, and octadecylsilane chromatography, followed by high-performance liquid chromatography. The chemical structures of the new compounds, 1 and 2, were determined by nuclear magnetic resonance and mass spectrometry, as containing a terahydroquinoline and an indoline, respectively, each also containing a hydroxy cyclopentenone moiety. Both compounds demonstrated weak antimicrobial (both antibacterial and antifungal) activity and compound 1 also showed antiviral activity against the dengue virus, whereas compound 2 exhibited no antiviral properties.Mar. 2019, The Journal of antibiotics, 72(3) (3), 169 - 173, English, Domestic magazine[Refereed]Scientific journal
- Antiviral Activity of Cananga odorata Against Hepatitis BChronic hepatitis B virus (HBV) infection can lead to liver cirrhosis and hepatocellular carcinoma. Current therapeutic drugs for chronic hepatitis B using pegylated interferons and nucleos(t)ide analogs have limited efficacy. Therefore, the development of novel and safe antivirals is required. Natural products including medicinal plants produce complex and structurally diverse compounds, some of which offer suitable targets for antiviral screening studies. In the present study, we screened various crude extracts from Indonesian plants for anti-HBV activity by determining their effects on the production of extracellular HBV DNA in Hep38.7-Tet cells and HBV entry onto a HBV-susceptible cell line, HepG2-NTCP, with the following results: (1) In Hep38.7-Tet cells, Cananga odorata exhibited the highest anti-HBV activity with a 50% inhibitory concentration (IC50) of 56.5 µg/ml and 50% cytotoxic concentration (CC50) of 540.2 µg/ml (Selectivity Index: 9.6). (2) The treatment of HepG2-NTCP cells with Cassia fistula, C. odorata, and Melastoma malabathricum at concentrations of 100 µg/ml lowered the levels of HBsAg production to 51.2%, 58.0%, and 40.1%, respectively, compared to untreated controls, and IC50 and CC50 values of C. odorata were 142.9 µg/ml and >400 µg/ml. In conclusion, the C. odorata extract could be a good candidate for the development of anti-HBV drugs.2019, Kobe Journal of Medical Sciences, 65(2) (2), E71 - E79, English, Domestic magazine[Refereed]Scientific journal
- Dec. 2018, IOP Conference Series: Materials Science and Engineering, 434(1) (1)[Refereed]International conference proceedings
- Nature Publishing Group, Dec. 2018, Scientific Reports, 8(1) (1), 7784, English[Refereed]Scientific journal
- JC polyomavirus (JCPyV) is the causative agent of progressive multifocal leukoencephalopathy (PML), a demyelinating disease of the central nervous system in immunocompromised patients. Archetype JCPyV circulates in the human population. There have been several reports of archetype JCPyV replication in cultured cells, in which propagation was not enough to produce high titers of archetype JCPyV. In this study, we carried out cultivation of the transfected cells with archetype JCPyV DNA MY for more than 2 months to establish COS-7 cells (designated COS-JC cells) persistently producing archetype JCPyV. Moreover, JCPyV derived from COS-JC cells was characterized by analyzing the viral propagation, size of the viral genome, amount of viral DNA, production of viral protein, and structure of the non-coding control region (NCCR). Southern blotting using a digoxigenin-labeled JCPyV probe showed two different sizes of the JCPyV genome in COS-JC cells. For molecular cloning, four of five clones showed a decrease in the size of complete JCPyV genome. Especially, clone No. 10 was generated the large deletion within the Large T antigen. On the other hand, the archetype structure of the NCCR was maintained in COS-JC cells, although a few point mutations occurred. Quantitative PCR analysis of viral DNA in COS-JC cells indicated that a high copy number of archetype JCPyV DNA was replicated in COS-JC cells. These findings suggest that COS-JC cells could efficiently propagate archetype JCPyV MY and offer a useful tool to study persistent infection of archetype JCPyV in a kidney-derived system.Aug. 2018, Microbiology and immunology, 62(8) (8), 524 - 530, English, International magazine[Refereed]Scientific journal
- Mary Ann Liebert Inc., Jun. 2018, AIDS Research and Human Retroviruses, 34(6) (6), 555 - 560, English[Refereed]Scientific journal
- Jun. 2018, Journal of medicinal chemistry, 61(12) (12), 5138 - 5153[Refereed]
- Public Library of Science, Jun. 2018, PLoS ONE, 13(6) (6), e0198071, English[Refereed]Scientific journal
- May 2018, HIV AIDS Rev, 17(2) (2), 81 - 90, EnglishGenotypic characterization of human immunodeficiency virus type 1 isolated in Bali, Indonesia in 2016.[Refereed]Scientific journal
- National Institute of Health, 2018, Japanese Journal of Infectious Diseases, 71(1) (1), 58 - 61, English[Refereed]Scientific journal
- Pharmaceutical Society of Japan, 2018, Chemical and Pharmaceutical Bulletin, 66(3) (3), 191 - 206, English[Refereed]
- Obafemi Awolowo University, 2018, African Journal of Infectious Diseases, 12(1) (1), 116 - 119, English[Refereed]Scientific journal
- Dengue virus (DENV) infection is a major health issue in tropical and subtropical areas. Indonesia is one of the biggest dengue endemic countries in the world. In the present study, the phylogenetic analysis of DENV in Bangkalan, Madura Island, Indonesia, was performed in order to obtain a clearer understanding of its dynamics in this country. A total of 359 blood samples from dengue-suspected patients were collected between 2012 and 2014. Serotyping was conducted using a multiplex Reverse Transcriptase-Polymerase Chain Reaction and a phylogenetic analysis of E gene sequences was performed using the Bayesian Markov chain Monte Carlo (MCMC) method. 17 out of 359 blood samples (4.7%) were positive for the isolation of DENV. Serotyping and the phylogenetic analysis revealed the predominance of DENV-1 genotype I (9/17, 52.9%), followed by DENV-2 Cosmopolitan type (7/17, 41.2%) and DENV-3 genotype I (1/17, 5.9%). DENV-4 was not isolated. The Madura Island isolates showed high nucleotide similarity to other Indonesian isolates, indicating frequent virus circulation in Indonesia. The results of the present study highlight the importance of continuous viral surveillance in dengue endemic areas in order to obtain a clearer understanding of the dynamics of DENV in Indonesia.2018, Journal of tropical medicine, 2018, 8127093 - 8127093, English, International magazine[Refereed]Scientific journal
- BACKGROUND AND OBJECTIVES: Human Immunodeficiency Virus (HIV) is still a major health issue in Indonesia. In recent years, the appearance of drug resistance-associated mutations has reduced the effectiveness of Antiretroviral Therapy (ART). We conducted genotypic studies, including the detection of drug resistance-associated mutations (from first-line regimen drugs), on HIV-1 genes derived from infected individuals in Maumere, West Nusa Tenggara. Maumere, a transit city in West Nusa Tenggara, which has a high HIV-1 transmission rate. METHOD: We collected 60 peripheral blood samples from 53 ART-experienced and 7 ART-naive individuals at TC Hillers Hospital, Maumere between 2014 and 2015. The amplification and a sequencing analysis of pol genes encoding protease (the PR gene) and reverse transcriptase (the RT gene) as well as the viral env and gag genes were performed. HIV-1 subtyping and the detection of drug resistance-associated mutations were then conducted. RESULTS: Among 60 samples, 46 PR, 31 RT, 30 env, and 20 gag genes were successfully sequenced. The dominant HIV-1 subtype circulating in Maumere was CRF01_AE. Subtype B and recombinant viruses containing gene fragments of CRF01_AE, subtypes A, B, C, and/or G were also identified as minor populations. The major drug resistance-associated mutations, M184V, K103N, Y188L, and M230I, were found in the RT genes. However, no major drug resistance-associated mutations were detected in the PR genes. CONCLUSION: CRF01_AE was the major HIV-1 subtype prevalent in Maumere. The appearance of drug resistance-associated mutations found in the present study supports the necessity of monitoring the effectiveness of ART in Maumere.2018, Current HIV research, 16(2) (2), 158 - 166, English, International magazine[Refereed]Scientific journal
- Dec. 2017, AIDS RESEARCH AND HUMAN RETROVIRUSES, 33(12) (12), 1248 - 1257, English[Refereed]Scientific journal
- Nov. 2017, SCIENTIFIC REPORTS, 7(1) (1), 15931, English[Refereed]Scientific journal
- Sep. 2017, AIDS RESEARCH AND HUMAN RETROVIRUSES, 33(9) (9), 960 - 965, English[Refereed]Scientific journal
- Jul. 2017, Acta medica Indonesiana, 49(3) (3), 205 - 214Sero- and Molecular Epidemiology of HIV-1 in Papua Province, Indonesia.[Refereed]Scientific journal
- Jun. 2017, MICROBIOLOGY AND IMMUNOLOGY, 61(6) (6), 232 - 238, English[Refereed]Scientific journal
- JC polyomavirus (JCPyV) is the causative agent of the demyelinating disease of the central nervous system known as progressive multifocal leukoencephalopathy (PML), which occurs in immunocompromised patients. Moreover, patients treated with natalizumab for multiple sclerosis or Crohn disease can develop PML, which is then termed natalizumab-related PML. Because few drugs are currently available for treating PML, many antiviral agents are being investigated. It has been demonstrated that the topoisomerase I inhibitors topotecan and β-lapachone have inhibitory effects on JCPyV replication in IMR-32 cells. However, both of these drugs have marginal inhibitory effects on virus propagation in JC1 cells according to RT-PCR analysis. In the present study, the inhibitory effect of another topoisomerase I inhibitor, 7-ethy-10-[4-(1-piperidino)-1-piperidino] carbonyloxy camptothecin (CPT11), was assessed by investigating viral replication, propagation, and viral protein 1 (VP1) production in cultured cells. JCPyV replication was assayed using real-time PCR combined with Dpn I treatment in IMR-32 cells transfected with JCPyV DNA. It was found that JCPyV replicates less in IMR-32 cells treated with CPT11 than in untreated cells. Moreover, CPT11 treatment of JCI cells persistently infected with JCPyV led to a dose-dependent reduction in JCPyV DNA and VP1 production. Additionally, the inhibitory effect of CPT11 was found to be stronger than those of topotecan and β-lapachone. These findings suggest that CPT11 may be a potential anti-JCPyV agent that could be used to treat PML.Jun. 2017, Microbiology and immunology, 61(6) (6), 232 - 238, English, International magazine[Refereed]Scientific journal
- Jan. 2017, FEBS OPEN BIO, 7(1) (1), 88 - 95, English[Refereed]Scientific journal
- The high impact of the acquired immunodeficiency syndrome caused by human immunodeficiency virus has represented a significant public health threat in the last four decades. Recently, the development of new antiviral drugsiMedPub Journals, Nov. 2016, Journal of Prevention & Infection Control, 2(2:12) (2:12), 1 - 5, English
has led to great progress in overcoming this virus. Antiretroviral therapy coverage has been increasing, even in low-income countries, resulting in an overall decline of HIV/AIDS-related deaths worldwide. Nonetheless, new
infections still appear, and the era of clearance of this virus has not yet been reached. Moreover, the resistance of the virus to drugs during treatments remains a serious problem.
Therefore, researchers are actively seeking to discover and characterize new molecule(s) that could be suitable for anti-HIV treatment. Cyclophilin A, a host molecular chaperone or folder protein, is suspected to be one such attractive target. We and others are searching for inhibitor(s) of this molecule and investigating its mechanism of action throughout the viral life cycle. In this review, we focus on studies related to cyclophilin A and the candidate inhibitors.[Refereed] - Sep. 2016, JAPANESE JOURNAL OF INFECTIOUS DISEASES, 69(5) (5), 442 - 444, English[Refereed]Scientific journal
- Aug. 2016, AIDS RESEARCH AND HUMAN RETROVIRUSES, 32(8) (8), 812 - 817, English[Refereed]Scientific journal
- May 2016, MICROBES AND INFECTION, 18(5) (5), 346 - 353, English[Refereed]Scientific journal
- Apr. 2016, MICROBES AND INFECTION, 18(4) (4), 277 - 284, English[Refereed]Scientific journal
- Apr. 2016, MICROBIOLOGY AND IMMUNOLOGY, 60(4) (4), 253 - 260, English[Refereed]Scientific journal
- Jan. 2016, INFECTION GENETICS AND EVOLUTION, 37, 88 - 93, English[Refereed]Scientific journal
- 2016, RSC ADVANCES, 6(95) (95), 92996 - 93002, English[Refereed]Scientific journal
- Universitas Airlangga, Jul. 2015, Indonesian Journal of Tropical and Infectious Disease, 5(1) (1), 1 - 1Scientific journal
- {OMICS} Publishing Group, May 2015, J. Infect. Dis. Ther., 3(3) (3), 1 - 8, English[Refereed]Scientific journal
- Apr. 2015, MICROBIOLOGY AND IMMUNOLOGY, 59(4) (4), 238 - 242, English[Refereed]Scientific journal
- Feb. 2015, AIDS RESEARCH AND HUMAN RETROVIRUSES, 31(2) (2), 255 - 259, English[Refereed]Scientific journal
- Feb. 2015, AIDS RESEARCH AND THERAPY, 12, 5, English[Refereed]Scientific journal
- Dec. 2014, JOURNAL OF MEDICAL VIROLOGY, 86(12) (12), 2026 - 2032, English[Refereed]Scientific journal
- Dec. 2014, INFECTION GENETICS AND EVOLUTION, 28, 48 - 54, English[Refereed]Scientific journal
- May 2014, AIDS RESEARCH AND HUMAN RETROVIRUSES, 30(5) (5), 489 - 492, English[Refereed]Scientific journal
- May 2014, JAPANESE JOURNAL OF INFECTIOUS DISEASES, 67(3) (3), 227 - 229, EnglishPhylogenetic Analysis of Dengue Virus Type 3 Strains Primarily Isolated in 2013 from Surabaya, Indonesia[Refereed]Scientific journal
- Apr. 2014, RETROVIROLOGY, 11, 32, English[Refereed]Scientific journal
- Feb. 2014, MICROBIOLOGY AND IMMUNOLOGY, 58(2) (2), 126 - 134, English[Refereed]Scientific journal
- Feb. 2014, MICROBES AND INFECTION, 16(2) (2), 142 - 152, English[Refereed]Scientific journal
- Dec. 2013, PLOS ONE, 8(12) (12), e82645, English[Refereed]Scientific journal
- Universitas Airlangga, Oct. 2013, Indonesian Journal of Tropical and Infectious Disease, 4(4) (4), 35 - 35Scientific journal
- Jan. 2013, PLoS ONE, 8(1) (1), e53920, English[Refereed]Scientific journal
- Jan. 2013, JOURNAL OF MOLECULAR MODELING, 19(1) (1), 465 - 475, English[Refereed]Scientific journal
- The incidence of progressive multifocal leukoencephalopathy (PML) has increased due to the AIDS pandemic, hematological malignancies, and immunosuppressive therapies. Recently, the number of cases of monoclonal antibody-associated PML has increased in patients treated with immunomodulatory drugs such as natalizumab. However, no common consensus regarding PML therapy has been reached in clinical studies. In order to examine the suppression of JC virus (JCV) replication by 3-aminobenzamide (3-AB), a representative PARP-1 inhibitor, a DNA replication assay was carried out using the neuroblastoma cell line IMR-32 and IMR-adapted JCV. The suppression of JCV propagation by 3-AB was also examined using JCI cells, which are a carrier culture producing continuously high JCV titers. The results indicated that PARP-1 inhibitors, such as 3-aminobenzamide (3-AB), suppress JCV replication and propagation significantly in vitro, as judged by DNA replication assay, hemagglutination, and real-time PCR analysis. It has been also shown that 3-AB reduced PARP-1 activity in IMR-32 cells. According to the results of the MTT assay, the enzyme activity of 3-AB-treated cells was slightly lower than that of DMSO-treated cells. However, the significant suppression of JCV propagation is not related to the slight decrease in cell growth. To our knowledge, this is the first report that PARP-1 inhibitor suppresses the replication of JCV significantly in neuroblastoma cell lines via the reduction of PARP-1 activity. Thus, PARP-1 inhibitors also may be a novel therapeutic drug for PML.Jan. 2013, Journal of medical virology, 85(1) (1), 132 - 7, English, International magazine[Refereed]Scientific journal
- 2013, Uirusu, 63(1) (1), 51 - 58[Refereed]Scientific journal
- SEAMEO TROPMED Network, 2013, Southeast Asian Journal of Tropical Medicine and Public Health, 44(5) (5), 825 - 841, EnglishVariables influencing anti-human immunodeficiency virus type 1 neutralizing human monoclonal antibody (NhMAb) production among infected Thais[Refereed]Scientific journal
- Jun. 2012, VIROLOGY JOURNAL, 9, 114, English[Refereed]Scientific journal
- Apr. 2012, JOURNAL OF MEDICAL VIROLOGY, 84(4) (4), 555 - 561, English[Refereed]Scientific journal
- Nov. 2011, PLOS ONE, 6(11) (11), e27098, English[Refereed]Scientific journal
- Mar. 2011, SOUTHEAST ASIAN JOURNAL OF TROPICAL MEDICINE AND PUBLIC HEALTH, 42(2) (2), 311 - 319, EnglishVIRAL FACTORS INVOLVED IN ADAPTER-RELATED PROTEIN COMPLEX 2 ALPHA 1 SUBUNIT-MEDIATED REGULATION OF HUMAN IMMUNODEFICIENCY VIRUS TYPE 1 REPLICATION[Refereed]Scientific journal
- Dec. 2010, AIDS RESEARCH AND HUMAN RETROVIRUSES, 26(12) (12), 1341 - 1343, English[Refereed]Scientific journal
- Dec. 2010, MICROBIOLOGY AND IMMUNOLOGY, 54(12) (12), 758 - 762, English[Refereed]Scientific journal
- Sep. 2010, VIROLOGY, 405(1) (1), 129 - 138, English[Refereed]Scientific journal
- Sep. 2010, VIROLOGY, 405(1) (1), 157 - 164, English[Refereed]Scientific journal
- Jun. 2010, VIROLOGY JOURNAL, 7, 112, English[Refereed]Scientific journal
- May 2010, JOURNAL OF VIROLOGY, 84(9) (9), 4311 - 4320, English[Refereed]Scientific journal
- Mar. 2010, SOUTHEAST ASIAN JOURNAL OF TROPICAL MEDICINE AND PUBLIC HEALTH, 41(2) (2), 347 - 357, EnglishSUSTAINED APPEARANCE OF DRUG RESISTANCE-ASSOCIATED MUTATIONS IN HIV-1 CRF01_AE PROTEASE AND REVERSE TRANSCRIPTASE DERIVED FROM PROTEASE INHIBITOR-NAIVE THAI PATIENTS[Refereed]Scientific journal
- Feb. 2010, AIDS RESEARCH AND HUMAN RETROVIRUSES, 26(2) (2), 223 - 227, English[Refereed]Scientific journal
- Jan. 2010, JOURNAL OF MEDICAL VIROLOGY, 82(1) (1), 157 - 163, English[Refereed]Scientific journal
- Nov. 2009, MICROBIOLOGY AND IMMUNOLOGY, 53(11) (11), 621 - 628, English[Refereed]Scientific journal
- Apr. 2009, JOURNAL OF MEDICAL VIROLOGY, 81(4) (4), 657 - 664, English[Refereed]Scientific journal
- Apr. 2008, MICROBES AND INFECTION, 10(5) (5), 504 - 513, English[Refereed]Scientific journal
- Nov. 2007, VIROLOGY, 368(1) (1), 191 - 204, English[Refereed]Scientific journal
- Jul. 2007, FEBS LETTERS, 581(17) (17), 3253 - 3259, English[Refereed]Scientific journal
- Jun. 2006, MICROBES AND INFECTION, 8(7) (7), 1773 - 1782, English[Refereed]Scientific journal
- May 2006, EXPERIMENTAL CELL RESEARCH, 312(8) (8), 1254 - 1264, English[Refereed]Scientific journal
- Aug. 2005, BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 334(2) (2), 412 - 417, English[Refereed]Scientific journal
- 2005, MICROBIOLOGY AND IMMUNOLOGY, 49(2) (2), 155 - 165, English[Refereed]Scientific journal
- Aug. 2004, JOURNAL OF VIROLOGY, 78(16) (16), 8931 - 8934, English[Refereed]Scientific journal
- May 2004, BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 317(3) (3), 865 - 872, English[Refereed]Scientific journal
- Feb. 2004, AIDS RESEARCH AND HUMAN RETROVIRUSES, 20(2) (2), 203 - 211, English[Refereed]Scientific journal
- Oct. 2003, BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 310(2) (2), 312 - 317, English[Refereed]Scientific journal
- Mar. 2003, VIROLOGY, 307(1) (1), 154 - 163, English[Refereed]Scientific journal
- Apr. 2002, JOURNAL OF VIROLOGY, 76(8) (8), 3637 - 3645, English[Refereed]Scientific journal
- Jan. 2002, JOURNAL OF BIOCHEMISTRY, 131(1) (1), 131 - 135, English[Refereed]Scientific journal
- Mar. 2001, JOURNAL OF VIROLOGY, 75(6) (6), 2675 - 2683, English[Refereed]Scientific journal
- American Society for Biochemistry {\&} Molecular Biology ({ASBMB}), Nov. 2000, Journal of Biological Chemistry, 276(9) (9), 6711 - 6719[Refereed]Scientific journal
- Mar. 2000, BIOCHEMICAL JOURNAL, 346(3) (3), 641 - 649, English[Refereed]Scientific journal
- Feb. 2000, VIRUS RESEARCH, 66(2) (2), 131 - 137, English[Refereed]Scientific journal
- 2000, MICROBIOLOGY AND IMMUNOLOGY, 44(2) (2), 111 - 121, EnglishExposure of normal monocyte-derived dendritic cells to human immunodeficiency virus type-1 particles leads to the induction of apoptosis in co-cultured CD4(+) as well as CD8(+) T cells[Refereed]Scientific journal
- Aug. 1999, BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 262(1) (1), 285 - 289, English[Refereed]Scientific journal
- Jul. 1999, BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 261(1) (1), 90 - 94, English[Refereed]Scientific journal
- Mar. 1999, EXPERIMENTAL CELL RESEARCH, 247(2) (2), 514 - 524, English[Refereed]Scientific journal
- 奈良医学会, Dec. 1998, Journal of Nara Medical Association, 49(6) (6), 495 - 495, JapanesePARPがHIV複製に及ぼす影響
- Jul. 1998, VIRUS RESEARCH, 56(1) (1), 115 - 122, English[Refereed]Scientific journal
- Jun. 1998, JOURNAL OF GENERAL VIROLOGY, 79, 1363 - 1371, EnglishDependence on host cell cycle for activation of human immunodeficiency virus type 1 gene expression from latency[Refereed]Scientific journal
- Dec. 1997, VIRUS RESEARCH, 52(2) (2), 145 - 156, English[Refereed]
- Oct. 1997, IMMUNOPHARMACOLOGY, 37(2-3) (2-3), 185 - 190, English[Refereed]Scientific journal
- Oct. 1997, INTERNATIONAL IMMUNOLOGY, 9(10) (10), 1453 - 1462, English[Refereed]Scientific journal
- Jul. 1997, BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 236(2) (2), 423 - 426, English[Refereed]Scientific journal
- Apr. 1997, VACCINE, 15(5) (5), 489 - 496, English[Refereed]Scientific journal
- Apr. 1997, AIDS RESEARCH AND HUMAN RETROVIRUSES, 13(6) (6), 523 - 526, English[Refereed]Scientific journal
- Apr. 1997, JOURNAL OF GENERAL VIROLOGY, 78, 807 - 820, EnglishInsertions, duplications and substitutions in restricted gp90 regions of equine infectious anaemia virus during febrile episodes in an experimentally infected horse[Refereed]Scientific journal
- Apr. 1997, VACCINE, 15(5) (5), 497 - 510, English[Refereed]Scientific journal
- Jan. 1997, JOURNAL OF CLINICAL MICROBIOLOGY, 35(1) (1), 41 - 47, EnglishProtease-defective, gp120-containing human immunodeficiency virus type 1 particles induce apoptosis more efficiently than does wild-type virus or recombinant gp120 protein in healthy donor-derived peripheral blood T cells[Refereed]Scientific journal
- Nov. 1996, AIDS RESEARCH AND HUMAN RETROVIRUSES, 12(17) (17), 1635 - 1638, EnglishIntracellular glutathione as a possible direct blocker of HIV type 1 reverse transcription[Refereed]Scientific journal
- Nov. 1996, INTERNATIONAL IMMUNOLOGY, 8(11) (11), 1687 - 1697, English[Refereed]Scientific journal
- Jul. 1996, [Hokkaido igaku zasshi] The Hokkaido journal of medical science, 71(4) (4), 489 - 508, Japanese[Studies on susceptibility of promonocytic cell line U937-derived subclones to HIV-1 infection and apoptosis induction].[Refereed]
- Feb. 1996, SCANDINAVIAN JOURNAL OF IMMUNOLOGY, 43(2) (2), 202 - 209, English[Refereed]Scientific journal
- 1996, VIRUS GENES, 12(2) (2), 117 - 129, EnglishHigh susceptibility of U937-derived subclones to human immunodeficiency virus type 1 infection correlates with accumulation of unintegrated circular viral DNA[Refereed]Scientific journal
- Dec. 1995, JOURNAL OF IMMUNOLOGY, 155(11) (11), 5289 - 5298, EnglishEXTRACELLULAR NEF PROTEIN REGULATES PRODUCTIVE HIV-1 INFECTION FROM LATENCY[Refereed]Scientific journal
- Nov. 1995, IMMUNOPHARMACOLOGY, 31(1) (1), 73 - 84, English[Refereed]Scientific journal
- Sep. 1995, CELLULAR AND MOLECULAR BIOLOGY, 41(6) (6), 771 - 781, EnglishINHIBITION AND DOWN-REGULATION OF POLY(ADP-RIBOSE) POLYMERASE RESULTS IN A MARKED RESISTANCE OF HL-60 CELLS TO VARIOUS APOPTOSIS-INDUCERS[Refereed]Scientific journal
- Aug. 1995, BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 213(1) (1), 161 - 168, English[Refereed]Scientific journal
- Jun. 1995, IMMUNOPHARMACOLOGY, 30(1) (1), 89 - 101, English[Refereed]Scientific journal
- Jun. 1995, IMMUNOPHARMACOLOGY, 30(1) (1), 27 - 39, English[Refereed]Scientific journal
- Dec. 1994, JOURNAL OF IMMUNOLOGY, 153(12) (12), 5826 - 5837, EnglishTHE CARBOXYL-TERMINAL REGION OF HIV-1 NEF PROTEIN IS A CELL-SURFACE DOMAIN THAT CAN INTERACT WITH CD4(+) T-CELLS[Refereed]Scientific journal
- May 1994, VACCINE, 12(6) (6), 485 - 491, English[Refereed]Scientific journal
- Feb. 1994, VACCINE, 12(2) (2), 153 - 158, English[Refereed]Scientific journal
- Sep. 1993, FEBS LETTERS, 331(1-2) (1-2), 182 - 186, English[Refereed]Scientific journal
- Jul. 1993, FEBS LETTERS, 326(1-3) (1-3), 232 - 236, English[Refereed]Scientific journal
- 2021, 日本ウイルス学会学術集会プログラム・予稿集(Web), 68thA biflavonid amentoflavone inhibits hepatitis B virus infection
- (一社)日本臨床微生物学会, Dec. 2020, 日本臨床微生物学会雑誌, 31(Suppl.1) (Suppl.1), 201 - 201, Japaneseインドネシアの食肉から分離された薬剤耐性Salmonella entericaの遺伝子解析
- Sep. 2017, INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS, 50, S82 - S82, EnglishMitochondrial DNA depletion among HIV-infected patients at Sanjiwani Hospital, Gianyar, BaliSummary international conference
- Apr. 2015, 最新医学, 74(4) (4), 745 - 743, Japanese神戸大学インドネシア拠点のあゆみと実績[Refereed][Invited]Others
- Fuji Technology Press, 01 Oct. 2014, Journal of Disaster Research, 9(5) (5), 828 - 835, EnglishBook review
- Jun. 2012, INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES, 16, E191 - E191, EnglishSummary international conference
- Jun. 2012, INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES, 16, E193 - E194, EnglishSummary international conference
- Jun. 2012, INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES, 16, E194 - E194, EnglishSummary international conference
- 日本エイズ学会, Nov. 2011, 日本エイズ学会誌, 13(4) (4), 482 - 482, JapaneseシクロフィリンAをターゲットとする新たな候補を見つけるための分子ドッキング法の検討(Investigation of molecular docking method in order to find novel candidates targeting cyclophilin A)
- May 2011, ANTIVIRAL RESEARCH, 90(2) (2), A76 - A77[Refereed]
- (公社)日本薬学会, Mar. 2011, 日本薬学会年会要旨集, 131年会(4) (4), 126 - 126, JapaneseCypAをターゲットとする抗HIV-1低分子化合物のin Silico探索
- Nov. 2009, JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES, 52(3) (3), 320 - 328, English
- Oct. 2009, AIDS RESEARCH AND HUMAN RETROVIRUSES, 25(10) (10), 1005 - 1011, English
- Jun. 2009, AIDS RESEARCH AND HUMAN RETROVIRUSES, 25(6) (6), 625 - 631, English
- Mar. 2009, MICROBES AND INFECTION, 11(3) (3), 334 - 343, English
- Feb. 2009, AIDS RESEARCH AND HUMAN RETROVIRUSES, 25(2) (2), 229 - 236, English
- 2009, 日本薬学会年会要旨集, 129th(2) (2)新規HIVプロテアーゼ阻害剤を指向した定量的構造活性相関(QSAR)
- May 2008, ANTIVIRAL RESEARCH, 78(2) (2), A42 - A42, English[Refereed]Summary international conference
- (公社)日本薬学会, Mar. 2008, 日本薬学会年会要旨集, 128年会(2) (2), 53 - 53, JapaneseHIV膜融合阻害剤C34に関する構造活性相関研究
- Mar. 2008, VIROLOGY, 373(1) (1), 171 - 180, English
- 日本エイズ学会, Nov. 2007, 日本エイズ学会誌, 9(4) (4), 405 - 405, JapaneseHIV gp41の蛋白質間相互作用計算によるアミノ酸残基と膜融合阻害活性との相関
- Aug. 2007, BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 359(3) (3), 729 - 734, English
- 2007, 情報計算化学生物学会大会予稿集, 2007Computational alanine scanning for the 6-helix bundle model between HIV-1 gp41 N-terminal heptad repeat and membrane fusion inhibitor C34
- Jan. 2007, EnglishComputational Studies on Relationship with Protein-Protein Interaction Energy of HIV-1 gp41 and Its Inhibitory Activity of Membrane Fusion
- 2006, 日本ウイルス学会学術集会プログラム・抄録集, 54th計算化学的手法によるHIV-1 gp41の膜融合阻害活性と蛋白質間相互作用エネルギーとの関連性の考察
- (公社)日本生化学会, Aug. 2002, 生化学, 74(8) (8), 1088 - 1088, Japanese成熟脳中のApaf-1阻害因子の精製
- THE ROLES OF POLY(ADP-RIBOSE) POLYMERASE IN THE REPLICATION OF HUMAN IMMUNODEFICIENCY VIRUS(HIV) AND OTHER RETROVIRUSESAIDSの原因ウイルスであるヒト免疫不全ウイルス(HIV)やその他のレトロウイルスの生活環の複数の増殖ステップに,ポリADPリボース合成酵素(PARP)が制御因子として関わっている。その制御機構を明らかにすることは,新たなAIDS治療薬を開発する手がかりとなりうるものである。奈良医学会, 30 Apr. 2002, Journal of Nara Medical Association, 53(2) (2), 91 - 99, Japanese
- (公社)日本生化学会, Aug. 2001, 生化学, 73(8) (8), 983 - 983, JapanesePARP欠損細胞における熱ショック誘導アポトーシスの亢進
- (公社)日本生化学会, Aug. 2001, 生化学, 73(8) (8), 1033 - 1033, JapaneseTat依存的なHIV-1転写機構におけるポリADPリボース合成酵素の役割について
- (公社)日本生化学会, Aug. 2000, 生化学, 72(8) (8), 935 - 935, JapaneseApaf-1依存性のcaspase活性化 胸腺,脳,肝臓組織における比較
- (公社)日本生化学会, Aug. 2000, 生化学, 72(8) (8), 935 - 935, JapaneseアポトーシスならびにネクローシスにおけるポリADPリボース合成酵素の相反する役割
- (公社)日本生化学会, Aug. 2000, 生化学, 72(8) (8), 935 - 935, Japanese成熟脳におけるApaf-1経由のアポトーシス経路の停止
- (公社)日本生化学会, Aug. 1999, 生化学, 71(8) (8), 820 - 820, Japaneseポリ(ADP-リボース)合成酵素によるNF-κBの調節機構
- (公社)日本生化学会, Aug. 1999, 生化学, 71(8) (8), 822 - 822, Japanese牛の脳及び胸腺のcaspaseと活性化因子
- 奈良医学会, Dec. 1998, Journal of Nara Medical Association, 49(6) (6), 495 - 495, Japanese牛胸腺抽出液におけるcaspaseの活性化機構
- (公社)日本生化学会, Aug. 1998, 生化学, 70(8) (8), 787 - 787, Japaneseアポトーシスの分子機構 牛胸腺抽出液中のcaspase-3活性化因子
- (公社)日本生化学会, Aug. 1998, 生化学, 70(8) (8), 1050 - 1050, JapaneseU937由来サブクローンのアポトーシス誘導感受性の解析
- Hokkaido University, 1998, Collected papers from the Institute of Immunological Science Hokkaido University, 21, 80 - 88, EnglishDependence of host cell cycle for activation of human immunodeficiency virus type 1 gene expression from latency
- Hokkaido University, 1998, Collected papers from the Institute of Immunological Science Hokkaido University, 21, 101 - 108, EnglishA specific T-cell subset with CD4+/CD38- markers derived from HIV-1 cariers induses apoptosis in healthy donor-derived T-lymphocytes.
- Jul. 1997, FASEB JOURNAL, 11(9) (9), A981 - A981, EnglishPersistent infection of U937 cells with HIV-1 blocks CPP32-dependent apoptotic pathway in the cellsSummary international conference
- Hokkaido University, 1997, Collected papers from the Institute of Immunological Science Hokkaido University, 20, 46 - 59, EnglishInsertions, duplications and substitutions in restricted gp90 regions of equine infectious anemia virus occurred during febrile episodes in an experimentally infected horse.
- Hokkaido University, 1997, Collected papers from the Institute of Immunological Science Hokkaido University, 20, 17 - 23, EnglishProtease-defective, gp120-containing human immunodeficiency virus type 1 particles induce apoptosis more efficiently than does wild-type virus or recombinant gp120 protein in healthy donor-derived peripheral blood T cells.
- Hokkaido University, 1997, Collected papers from the Institute of Immunological Science Hokkaido University, 20, 60 - 67, EnglishA chain section containing epitopes for cytotoxic T, B and helper T cells within a highly conserved region found in the human immunodeficiency virus type 1 Gag protein.
- Hokkaido University, 1997, Collected papers from the Institute of Immunological Science Hokkaido University, 20, 125 - 130, EnglishSuperoxide generation by monocytes following infection with human cytomegalovirus.
- 北海道大学, 1996, Collected papers from the Institute of Immunological Science Hokkaido University, 19, 74 - 77, EnglishE Intracellular glutathione as a possible direct blocker of HIV type 1 reverse transcription.
- Hokkaido University, 1995, Collected papers from the Institute of Immunological Science Hokkaido University, 18, 31 - 42, EnglishStimulation of human immunodeficiency virus type 1 infected cells with superoxide enhances the chemotactic motile response of CD4+ human cells: implication for virus transmission by cell-to-cell interaction.
- Hokkaido University, 1995, Collected papers from the Institute of Immunological Science Hokkaido University, 18, 43 - 55, EnglishHigh susceptibility of U937-derived subclone to infection with human immunodeficiency virus type 1 is correlated with virus-induced celldifferentiation and superoxide generation.
- Hokkaido University, 1995, Collected papers from the Institute of Immunological Science Hokkaido University, 18, 69 - 76, EnglishPoly(ADP-ribose) polymerase activity in various U937 cell subclones with different susceptibility to HIV-1 infection : Its dramatic decre ase following persistent virus infection.
- 1995, AIDS RESEARCH AND HUMAN RETROVIRUSES, 11, S117 - S117, EnglishEXTRACELLULAR NEF PROTEIN REGULATES ACTIVATION OF HIV-INFECTION FROM LATENTLY INFECTED-CELLSSummary international conference
- 1995, AIDS RESEARCH AND HUMAN RETROVIRUSES, 11, S112 - S112, EnglishAPOPTOTIC CELL-LYSIS INDUCED BY DEFECTIVE, HIV PROTEASE-DEFICIENT PARTICLESSummary international conference
- Hokkaido University, 1994, Collected papers from the Institute of Immunological Science Hokkaido University, 17, 85 - 94, EnglishIn vivo induction of human immunodeficiency virus type 1-specific cytotoxic T lymphocytes and delayed-type hypersensitivity by a @@S ' 23-amino acid peptide from the highly conserved region in major @@S ' core protein p24
- Hokkaido University, 1994, Collected papers from the Institute of Immunological Science Hokkaido University, 17, 71 - 76, EnglishCytotoxic T lymphocyte response in mice induced by a recombinant BCG Vaccination which produces an extracellular α antigen that @@S ' fused with the human immunodeficiency virus type 1 envelope immuno @@S dominant domain in the V3 loop.
- Hokkaido University, 1994, Collected papers from the Institute of Immunological Science Hokkaido University, 17, 59 - 70, EnglishThe carboxyl-terminal region of HIV-1 Nef protein is a cell surface domain that can interact with CD4+ T cells
- Hokkaido University, 1993, Collected papers from the Institute of Immunological Science Hokkaido University, 16, 80 - 86, EnglishSuperoxide enhances the spread of HIV-1 infection by cell-to-cell
- 第68回日本ウイルス学会学術集会, Nov. 2021次亜塩素酸水溶液および過酸化水素水のドライフォグ噴霧によるSARS-CoV-2不活性化
- 第68回日本ウイルス学会学術集会, Nov. 2021Construction of a self-replicative RNA vaccine against SARS-CoV-2 using yellow fever virus replicon
- 第68回日本ウイルス学会学術集会, Nov. 2021Development and evaluation of anti-dengue single chain variable fragment antibodies which do not cause antibody-dependent enhancement of viral infection
- 第68回日本ウイルス学会学術集会, Nov. 2021A biflavonid amentoflavone inhibits hepatitis B virus infection
- 第68回日本ウイルス学会学術集会, Nov. 2021MARCH8 targets cytoplasmic lysine residues of various viral envelope glycoproteins
- 日本薬学会第141年会, Mar. 2021アメントフラボンのB型肝炎ウイルス、C型肝炎ウイルス感染阻害活性について
- 第67回日本ウイルス学会学術集会, Oct. 2019Replication of PML-type JC polyomavirus clones in culture cells
- 第67回日本ウイルス学会学術集会, Oct. 2019Evaluation of recombinant anti-dengue neutralizing antibodies that do not cause antibody-dependent enhancement of viral infection
- 第33回近畿エイズ研究会, 2019, Japaneseネパール大地震がHIV感染者の服薬アドヒアランス、メンタルヘルスと薬剤耐性変異の出現におよぼす影響について
- 第41回日本分子生物学会年会, Nov. 2018, English, 日本分子生物学会, 横浜, Domestic conferenceCRISPR/Cas9 System Targeting Regulatory Genes of HIV-1 Inhibits Viral Replication in Infected T-Cell CulturesPoster presentation
- 第22回日本ワクチン学会学術集会, 2018, Japanese, Domestic conferenceデングウイルスの感染増強を起こさない日本脳炎ワクチンの開発Oral presentation
- 第53回日本脳炎ウイルス生態学研究会, 2018, Japanese, Domestic conferenceデングウイルスに対する感染増強抗体を誘導しない日本脳炎ワクチンの開発Oral presentation
- 第66回日本ウイルス学会学術集会, 2018, Japanese, Domestic conferenceprM領域を改変したデングウイルス2型DNAワクチンの評価Oral presentation
- 第24回 トガフラビペスチウイルス研究会, 2017, Japanese, Domestic conferenceデングウイルスの増殖に関連する宿主細胞因子の検索Oral presentation
- 第24回 トガフラビペスチウイルス研究会, 2017, Japanese, Domestic conferenceデングウイルスに対する血清型特異的抗体の樹立Oral presentation
- 第65回日本ウイルス学会, 2017, Japanese, Domestic conferenceNearly full-length sequencing of HIV-1 subtype B in IndonesiaPoster presentation
- 第31回近畿エイズ研究会学術集会, 2017, Japanese, Domestic conferenceIV-1 CRF01_AE株がgp120 CD4結合部位を認識する単クローン抗体VRC01に対して中和抵抗性を示す分子機構Oral presentation
- Asia-Africa Research Forum on Emerging and Reemerging Infections 2014, 2017, English, International conferenceHigh prevalence of HIV-1 CRF01_AE viruses among female commercial sex workers residing in Surabaya, IndonesiaOral presentation
- 第65回日本ウイルス学会, 2017, English, Domestic conferenceGenotypic characterization of human immunodeficiency virus type 1 derived from infected individuals residing in Bali, IndonesiaPoster presentation
- 第65回日本ウイルス学会, 2017, Japanese, Domestic conferenceCharacterization of HIV-1 env genes derived from recently infected Indonesian individualsPoster presentation
- 第65回日本ウイルス学会, 2017, English, Domestic conferenceAppearance of drug resistance-associated mutations in human immunodeficiency virus type 1 protease and reverse transcriptase derived from infected individuals in Papua, IndonesiaPoster presentation
- 第65回日本ウイルス学会, 2017, Japanese, Domestic conferenceAnalysis of an epitope located near the glycosylation site on the domain II of dengue virus type 1 E proteinPoster presentation
- 第51回 日本脳炎ウイルス生態学研究会, 2016, Japanese, Domestic conferenceデングウイルス1型望月株に対して強力な中和活性を示すマウスモノクローナル抗体のエピトープ解析Oral presentation
- 第23回 トガフラビペスチウイルス研究会, 2016, Japanese, Domestic conferenceインドネシアのデング患者血より作製された 抗デングウイルスヒト型モノクローナル抗体の性状解析Oral presentation
- Asia-Africa Research Forum on Emerging and Reemerging Infections 2014, 2016, English, International conferenceMolecular epidemiology of Dengue Virus in 4 cities of East Java, IndonesiaOral presentation
- 第64回 日本ウイルス学会, 2016, English, Domestic conferenceCharacterization of human monoclonal antibodies against dengue virus generated from Indonesian dengue patientsOral presentation
- Asia-Africa Research Forum on Emerging and Reemerging Infections 2014, 2015, English, International conferenceGeneration of human monoclonal antibody using peripheral blood lymphocytes from dengue patient in IndonesiaPoster presentation
- 第63回 日本ウイルス学会学術集会, 2015, Japanese, Domestic conferenceDivergence of dengue virus 2 Cosmopolitan genotype associated with two predominant serotype shifts between 1 and 2 in Surabaya, IndonesiaPoster presentation
- 第28回日本エイズ学会学術集会・総会, Dec. 2014, Japanese, 日本エイズ学会, 大阪, Domestic conference東南アジアで流行するHIVの特徴[Invited]Nominated symposium
- 第28回日本エイズ学会学術集会・総会, Dec. 2014, Japanese, 日本エイズ学会, 大阪, Domestic conferenceビオチン化PIの分子設計と活性プロテアーゼの同定Oral presentation
- 第28回日本エイズ学会学術集会・総会, Dec. 2014, Japanese, 日本エイズ学会, 大阪, Domestic conferenceインドネシア・スラバヤ市の性産業従事者におけるHIV流行Oral presentation
- Joint International Tropical Medicine Meeting (JITMM 2014) and Food borne Parasites and Zoonoses 8 (FBPZ8), Dec. 2014, English, Mahidol University, バンコク, タイ, International conferenceDengue virus infection-neutralizing and enhancing antibody responses in central Thai populations against Indonesian and Thai strains.Oral presentation
- 第62回日本ウイルス学会学術集会, Nov. 2014, Japanese, 日本ウイルス学会, 横浜, Domestic conferenceヒト神経芽細胞腫でのTNF-αによるJCウイルスDNA複製の促進Oral presentation
- 第62回日本ウイルス学会学術集会, Nov. 2014, Japanese, 日本ウイルス学会, 横浜, Domestic conferenceインドネシアの薬剤未治療HIV-1患者における薬剤耐性変異の解析Poster presentation
- 第21回トガ・フラビ・ペスチウイルス研究会, Nov. 2014, Japanese, 国立感染症研究所, 横浜, Domestic conferenceインドネシアのデング患者血を用いた抗デングウイルスヒト型モノクローナル抗体の樹立Oral presentation
- 第28回近畿エイズ研究会学術集会, Jun. 2014, Japanese, 近畿エイズ研究会, 大阪, International conferenceインドネシア・スラバヤ市に流行するHIV-1の遺伝子解析Oral presentation
- 日本薬学会年会, Mar. 2014, Japanese, Domestic conferenceビオチン化アスパラギン酸プロテアーゼ阻害剤を用いたHIVプロテアーゼ研究Oral presentation
- Asia-Africa Research Forum on Emerging and Reemerging Infections 2014, 2014, English, International conferenceAppearance of drug resistance-associated mutations in human immunodeficiency virus type 1 protease, reverse transcriptase and integrase derived from drug-naïve Indonesian patientsPoster presentation
- Asian-African Research Forum on Emerging and Reemerging infections 2014, Jan. 2014, English, International conferenceMolecular epidemiology of dengue virus in 4 cities of east Java, Indonesia.Oral presentation
- Asian-african research forum on emerging and reemerging infections 2014, Jan. 2014, English, MEXT, J-GRID, 仙台, International conferenceMolecular epidemiology of Dengue Virus in 4 cities of East Java, IndonesiaOral presentation
- Asian-African Research Forum on Emerging and Reemerging infections 2014, Jan. 2014, English, International conferenceHigh prevalence of HIV-1 CRF01_AE viruses among female commercial sex workers residing in Surabaya, Indonesia.Oral presentation
- Asian-african research forum on emerging and reemerging infections 2014, Jan. 2014, English, MEXT, J-GRID, 仙台, International conferenceHigh prevalence of HIV-1 CRF01_AE viruses among female commercial sex workers residing in Surabaya, Indonesia.Oral presentation
- Asian-african research forum on emerging and reemerging infections 2014, Jan. 2014, English, MEXT, J-GRID, 仙台, International conferenceGeneration of human monoclonal antibody using peripheral blood lymphocytes from dengue patient in IndonesiaPoster presentation
- Asian-African Research Forum on Emerging and Reemerging infections 2014, Jan. 2014, English, International conferenceGeneration of human monoclonal antibody using peripheral blood lymphocites from dengue patient in Indonesia.Poster presentation
- Asian-African Research Forum on Emerging and Reemerging infections 2014, Jan. 2014, English, International conferenceAppearance of drug resistance-associated mutations in human immunodeficiency virus type 1 protease, reverse transcriptase and integrase derived from drug-naïve Indonesian patients.Poster presentation
- Asian-african research forum on emerging and reemerging infections 2014, Jan. 2014, English, MEXT, J-GRID, 仙台, International conferenceAppearance of drug resistance-associated mutations in human immunodeficiency virus type 1 protease, reverse transcriptase and integrase derived from drug-naïve Indonesian patientsPoster presentation
- 日本環境動物昆虫学会年次大会, Nov. 2013, Japanese, Domestic conference蚊が関係する疾病[Invited]Nominated symposium
- トガ・フラビ・ペスチウイルス研究会, Nov. 2013, Japanese, Domestic conferenceスラバヤ市における2008年から2013年までのデングウイルス分子疫学Oral presentation
- 第20回 トガ・フラビ・ペスチウイルス研究会, Nov. 2013, Japanese, 国立感染症研究所, 神戸, Domestic conferenceインドネシア国スラバヤ市における2008年から2013年までのデングウイルス分子疫学Oral presentation
- 第61回日本ウイルス学会学術集会, Nov. 2013, Japanese, 日本ウイルス学会, 神戸, Domestic conferenceインドネシア・スラバヤの性産業従事者を対象としたHIV及び肝炎ウイルスの疫学調査Poster presentation
- 日本ウイルス学会学術集会, Nov. 2013, Japanese, Domestic conferenceインドネシア・スラバヤの性産業従事者を対象としたHIVおよび肝炎ウイルスの疫学調査Poster presentation
- 第61回日本ウイルス学会学術集会, Nov. 2013, English, 日本ウイルス学会, 神戸, Domestic conferenceTetravalent dengue DNA vaccine containing premembrane and envelope genes of dengue virus isolates in Indonesia.Oral presentation
- 日本ウイルス学会学術集会, Nov. 2013, English, Domestic conferenceTetravalent dengue DNA vaccine containing premembrane and envelope genes of dengue virus isolates in IndonesiaOral presentation
- 日本ウイルス学会学術集会, Nov. 2013, Japanese, Domestic conferencePARP-1阻害剤のin vitroにおけるJCウイルス増殖抑制効果についてOral presentation
- 日本ウイルス学会学術集会, Nov. 2013, Japanese, Domestic conferenceHIV-1 CRF01_AE株がgp120 CD4結合部位を認識する単クローン抗体に対して中和抵抗性を示す分子機構Oral presentation
- 第61回日本ウイルス学会学術集会, Nov. 2013, Japanese, 日本ウイルス学会, 神戸, Domestic conferenceAntiviral activity of crude extracts from Japanese medical plants against dengue virus type-2.Poster presentation
- 日本ウイルス学会学術集会, Nov. 2013, English, Domestic conferenceAntiviral activity of crude extracts from Japanese medical plants against dengue virus type-2Poster presentation
- 近畿エイズ研究会学術集会, Jun. 2013, Japanese, Domestic conferenceインドネシア・スラバヤ市の性産業従事者を対象としたHIVと肝炎ウイルスの疫学調査Oral presentation
- 第27回近畿エイズ研究会学術集会, Jun. 2013, Japanese, 近畿エイズ研究会, 大阪, Domestic conferenceインドネシア・スラバヤ市の性産業従事者を対象としたHIVと肝炎ウイルスの疫学調査Oral presentation
- 近畿エイズ研究会学術集会, Jun. 2013, Japanese, Domestic conferenceTNF-αによるJCウイルスのLarge T抗原の発現促進Oral presentation
- Asia-Africa Research Forum on Emerging and Reemerging Infections 2013, 2013, English, International conferencePhylogenetic and Molecular Clock Analysis of Dengue Virus Strains Isolated in Surabaya and Sidoarjo, Indonesia, during 2011-2012Poster presentation
- Asia-Africa Research Forum on Emerging and Reemerging Infections 2013, 2013, English, International conferenceAwareness of using Ringer’s Lactate Solution in Dengue Virus Infection can Induce SeverityPoster presentation
- Asian-African Research Forum on Emerging and Reemerging infections 2013, Jan. 2013, English, International conferencePhylogenetic and Molecular Clock Analysis of Dengue Virus Strains Isolated in Surabaya and Sidoarjo, Indonesia, during 2011-2012.Poster presentation
- Asian-African Research Forum on Emerging and Reemerging Infections (AARF) 2013, Jan. 2013, English, Ministry of Education, Culture, Sports, Science and Technology. Japan Initiative for Global Research Network on Infectious Diseases., 東京, Dengue virus (DENV) is transmitted to humans by the bite of an infected Aedes mosquito. Once infected, the mosquito remains infected for life, transmitting the virus to susceptible individuals while probing and feeding. The transmission cycle between humans and mosquitoes is a main mechanism for the maintenance of DENV in a large human populations and abundant Aedes mosquito po, International conferencePhylogenetic and Molecular Clock Analysis of Dengue Virus Strains Isolated in Surabaya and Sidoarjo, Indonesia, during 2011-2012Poster presentation
- Asian-African Research Forum on Emerging and Reemerging infections 2013, Jan. 2013, English, International conferenceAwareness of using Ringer’s lactate solution in dengue virus infection can induce severity.Oral presentation
- Asian-African Research Forum on Emerging and Reemerging Infections (AARF) 2013, Jan. 2013, English, Ministry of Education, Culture, Sports, Science and Technology. Japan Initiative for Global Research Network on Infectious Diseases., 東京, Dengue virus (DENV) infection is one of the important health problems in Indonesia, although the mortality rate has been decreased. Many cases with dengue shock syndrome and unusual manifestation of dengue infection are difficult to predict the earlier time for getting a good management. We made updated management of unusual manifestation in dengue infection for getting a bette, International conferenceAwareness of using Ringer's lactate solution in dengue virus infection can induce severityOral presentation
- 日本ウイルス学会学術集会, Nov. 2012, Japanese, Domestic conferenceタイにおけるJ-GRIDおよびSATREPS研究活動について[Invited]Nominated symposium
- 第60回日本ウイルス学会学術集会, Nov. 2012, Japanese, 日本ウイルス学会, 大阪, タイでおこなわれたJ-GRIDおよびSATREPS研究課題の概略を報告した, Domestic conferenceタイにおけるJ-GRIDおよびSATREPS研究活動についてNominated symposium
- 日本ウイルス学会学術集会, Nov. 2012, Japanese, Domestic conferenceシクロフィリンAとHIV-1 Gagの結合を阻害する新規低分子化合物の検索Poster presentation
- 第60回日本ウイルス学会学術集会, Nov. 2012, Japanese, 日本ウイルス学会, 大阪, シクロフィリンAとHIV-1 Gagの結合を阻害する低分子化合物を解析して、有効な化合物を見いだした, Domestic conferenceシクロフィリンAとHIV-1 Gagの結合を阻害する新規低分子化合物の検索Poster presentation
- 日本ウイルス学会学術集会, Nov. 2012, Japanese, Domestic conferenceHIV-1 Tatによる神経芽細胞腫でのJCウイルス増殖促進Oral presentation
- 第60回日本ウイルス学会学術集会, Nov. 2012, Japanese, 日本ウイルス学会, 大阪, HIV-1 Tatにより神経芽細胞腫におけるJCウイルス増殖促進機構を解析した, Domestic conferenceHIV-1 Tatによる神経芽細胞腫でのJCウイルス増殖促進Oral presentation
- 第26回近畿エイズ研究会学術集会, Jul. 2012, Japanese, 近畿エイズ研究会, 神戸, HIV-1 TatによりJCウイルスの増殖が更新する分子機構を解析した, Domestic conferenceHIV-1 TatのPML型JCウイルス増殖促進Oral presentation
- 近畿エイズ研究会学術集会, Jul. 2012, Japanese, Domestic conferenceHIV-1 TatによるJCウイルス増殖促進機構の解明Oral presentation
- 近畿エイズ研究会学術集会, Jul. 2012, Japanese, Domestic conferenceHIV-1 CRF01_AE株がCD4結合部位を認識する単クローン抗体に対して中和抵抗性を示す分子機構Oral presentation
- 第26回近畿エイズ研究会学術集会, Jul. 2012, Japanese, 近畿エイズ研究会, 神戸, HIV-1 CRF01_AE株がCD4結合部位を認識する単クローン抗体に対して中和抵抗性を示す分子機構として、外被タンパク質gp120のV2領域の1アミノ酸の役割を明らかにした, Domestic conferenceHIV-1 CRF01_AE株がCD4結合部位を認識する単クローン抗体に対して中和抵抗性を示す分子機構Oral presentation
- 15th International Congress on Infectious Diseases, Jun. 2012, English, International conferenceSusceptibility of HIV-1 CRF01_AE viruses to a CD4-binding site monoclonal antibody, IgG1 b12.Poster presentation
- 15th International Congress on Infectious Diseases, Jun. 2012, English, International conferenceIn search for a new anti-HIV-1 drug through inhibition of CA-CypA interaction.Poster presentation
- 15th International Congress on Infectious Diseases, Jun. 2012, English, International conferenceComparison of anti-HIV-1 neutralizing activity between the plasma derived from HIV-1 infected, slow and rapid progressors.Poster presentation
- Indonesia-Japan-Thailand Joint Forum on infectious Diseases 2012, 2012, English, International conferenceSome dengue patient sera or monoclonal antibodies exhibit varying focus sizes in a dengue virus infection-enhancing antibody assay systemOral presentation
- Indonesia-Japan-Thailand Joint Forum on infectious Diseases 2012, 2012, English, International conferenceSero-epidemiology of HIV-1infection and HBV, HCV co-infection among commercial sex worker in Surabaya, IndonesiaOral presentation
- Indonesia-Japan-Thailand Joint Forum on infectious Diseases 2012, 2012, English, International conferenceGenotypic study of HIV-1 derived from infected patients and commercial sex workers residing in Surabaya, IndonesiaOral presentation
- Asian-African Research Forum on Emerging and Reemerging infections 2012, Jan. 2012, English, International conferenceEvolution of HIV-1 CRF01_AE env gene in Thai patients.Poster presentation
- Asian-African Research Forum on Emerging and Reemerging infections 2012, Jan. 2012, English, International conferenceAnti-HIV-1 humoral immune responses in HIV-1-infected Thai patients.Oral presentation
- 日本薬学会年会, Mar. 2011, Japanese, Domestic conferenceCypAをターゲットとする抗HIV-1低分子化合物のin Silico探索Oral presentation
■ Research Themes