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KANESHIRO KentaGraduate School of Medicine / Department of Future Social MedicineAssistant Professor
Research activity information
■ Award■ Paper
- BACKGROUND: Cardiac fibrosis is a hallmark of heart failure and can be quantified by the extracellular volume fraction (ECV) derived from diagnostic imaging. However, noninvasive assessment is limited by the lack of specific circulating biomarkers. Recent large plasma proteome analyses have identified SVEP1 (Sushi, von Willebrand factor type A, EGF, and pentraxin domain containing 1) as candidate molecules reflecting cardiac fibrosis. This study aimed to evaluate SVEP1 as a biomarker for cardiac fibrosis. METHODS: In 72 patients with heart failure due to aortic stenosis, computed tomography-based ECV, serum SVEP1, and BNP (brain natriuretic peptide) levels were assessed. Multivariable regression was used to determine independent predictors of ECV. Publicly available single-nucleus RNA sequencing of human hearts revealed the cellular origin of SVEP1. SVEP1 secretion was assessed in human cardiac fibroblasts after TGF-β (transforming growth factor-β) stimulation or small interfering RNA knockdown. Plasma Svep1 and cardiac hydroxyproline levels were measured in mice with angiotensin II- and phenylephrine-induced cardiac fibrosis. RESULTS: Serum SVEP1 correlated with ECV and outperformed BNP in detecting fibrosis. Multivariable analysis revealed SVEP1 as an independent predictor of ECV. In addition, snRNA-seq revealed fibroblast-specific expression, expanded in failing hearts consistent with activated fibroblast emergence. Furthermore, TGF-β increased SVEP1 secretion in human cardiac fibroblasts, whereas its knockdown reduced SVEP1 secretion. Plasma Svep1 and cardiac hydroxyproline levels were elevated and positively correlated in mice. CONCLUSIONS: Compared with BNP, SVEP1, derived from cardiac fibroblasts, is more strongly associated with ECV-defined fibrosis and may serve as a novel fibrosis-specific circulating biomarker in heart failure.Apr. 2026, Journal of the American Heart Association, e047119, English, International magazineScientific journal
- BACKGROUND: ATP citrate lyase (ACLY) is a key enzyme in de novo lipogenesis that generates acetyl-CoA from citrate. Although fatty acids are required for energy production and biomass synthesis in the heart, the regulatory mechanisms of ACLY-mediated de novo lipogenesis in pathological cardiac fibroblasts remain unknown. The aim of this study was to investigate the biological role of ACLY in cardiac remodeling. METHODS: Adeno-associated virus serotype 9-mediated shRNA targeting Acly was intravenously injected into C57BL/6J male mice. The mice were subsequently continuously infused with a mixture of angiotensin II and phenylephrine. Cardiac phenotypes were evaluated via histological staining. Cell proliferation assays, stable isotope tracing with 13C-labeled glucose, and chromatin immunoprecipitation assays were performed using human cardiac fibroblasts. RESULTS: ACLY expression was upregulated in the heart sections of mice treated with angiotensin II/phenylephrine, in particular in fibrotic areas. Masson trichrome staining revealed that Acly gene silencing significantly reduced cardiac fibrosis in these mice. Both siRNA-mediated ACLY knockdown and pharmacological ACLY inhibition suppressed the proliferation and expression of fibrous proteins in cultured human cardiac fibroblasts stimulated with transforming growth factor-β. Mechanistically, ACLY inhibition reduced de novo lipogenesis, limiting the fatty acid supply essential for cellular growth and proliferation. It also decreased H3K9 and H3K27 acetylation, in addition to the presence of acetylated H3K9 and H3K27 at the promoter regions of fibrotic genes. CONCLUSIONS: Our findings demonstrate that ACLY plays an important role in maladaptive cardiac fibrosis. ACLY could be a novel therapeutic target to prevent the development of heart failure.Ovid Technologies (Wolters Kluwer Health), Mar. 2025, Hypertension[Refereed]Scientific journal
- Elsevier BV, Jan. 2024, Biochemical and Biophysical Research Communications, 691, 149315 - 149315[Refereed]Scientific journal
- Abstract Endogenous DNA is released into the bloodstream as cell-free DNA (cfDNA) following cell death and is associated with various pathological conditions. However, their association with therapeutic drugs against rheumatoid arthritis (RA) remains unknown. Therefore, we investigated the significance of cfDNA in RA treated with tocilizumab and tumour necrosis factor inhibitor (TNF-I). Biological DMARDs (bDMARDs), including tocilizumab and TNF-I, were administered to 77 and 59 RA patients, respectively. Plasma cfDNA levels were measured at weeks 0, 4, and 12 by quantitative polymerase chain reaction. Disease activity was evaluated at the same time point using DAS28ESR. cfDNA levels from RA synovial cells treated with tocilizumab or etanercept for 24 h were measured. Human toll-like receptor 9 (hTLR9)-expressing HEK293 cells, which release secreted embryonic alkaline phosphatase (SEAP) upon NF-κB activation, were stimulated by cfDNA from RA patients, and subsequently, SEAP levels were determined. NF-κB translocation was evaluated by immunofluorescence staining with or without tocilizumab. The DAS28ESR significantly improved in both bDMARD groups at week 12. However, plasma cfDNA levels significantly decreased in the tocilizumab group at week 12 compared to that in week 0. cfDNA levels correlated with DAS28ESR in biological treatment-naïve patients administered tocilizumab. cfDNA levels in synovial cells were significantly suppressed by tocilizumab treatment and unaltered with etanercept. HEK293 cells released SEAP upon cfDNA stimulation, and the observed NF-κB nuclear translocation was suppressed by tocilizumab. Tocilizumab suppressed inflammation via the TLR9 pathway by decreasing cfDNA levels. Regulation of cfDNA may be a therapeutic target for RA.Oxford University Press (OUP), Jun. 2023, Clinical and Experimental Immunology, 213(2) (2), 209 - 220[Refereed]Scientific journal
- (一社)日本リウマチ学会, Aug. 2020, 日本リウマチ学会総会・学術集会プログラム・抄録集, 64回, 705 - 705, JapaneseIL-6はミトコンドリア内因性経路を介して関節リウマチ滑膜細胞に細胞死抵抗性をもたらす
- Elsevier BV, Jul. 2020, International Immunopharmacology, 84, 106549 - 106549[Refereed]Scientific journal
- Lead, Informa UK Limited, Aug. 2019, Scandinavian Journal of Rheumatology, 48(5) (5), 353 - 361[Refereed]Scientific journal
- Lead, Oxford University Press (OUP), May 2019, Modern Rheumatology, 30(2) (2), 293 - 300[Refereed]Scientific journal
- Springer Science and Business Media LLC, Mar. 2018, Arthritis Research & Therapy, 20(1) (1)[Refereed]Scientific journal
- Elsevier BV, Jan. 2018, Biochemical and Biophysical Research Communications, 495(2) (2), 1675 - 1680[Refereed]Scientific journal
- Wiley, Dec. 2016, International Journal of Rheumatic Diseases, 20(6) (6), 722 - 730[Refereed]Scientific journal
- (一社)日本臨床免疫学会, Sep. 2015, 日本臨床免疫学会会誌, 38(4) (4), 361 - 361, Japanese
- 2025, 日本動脈硬化学会総会・学術集会プログラム・抄録集(Web), 57thDevelopment of a Fluorescent UnaG-Based Assay to Measure HDL-Bound Bilirubin for Coronary Risk Assessment
- 2025, 日本リウマチ学会総会・学術集会プログラム・抄録集, 69thIL-6はBikを介して関節リウマチ滑膜細胞の内因性経路による細胞死に抵抗する
- 2025, 日本リウマチ学会総会・学術集会プログラム・抄録集, 69th関節リウマチ治療反応性を予測する循環細胞外遊離DNA検出システムの開発
- Sep. 2024, ARTHRITIS & RHEUMATOLOGY, 76, 5265 - 5266, EnglishClock Gene Bmal1 Contributes to Inflammation via Phosphorylation of NF-κB/p65 in RA-FLSSummary international conference
- Oct. 2017, ARTHRITIS & RHEUMATOLOGY, 69, EnglishIL-6 and TNF-a Cooperate to Modulate the Cell Cycle of RA-Fibroblast-like Synoviocytes Via Cyclin Dependent Kinase InhibitorsSummary international conference
- Jun. 2017, ANNALS OF THE RHEUMATIC DISEASES, 76, 499 - 499, EnglishSummary international conference
- Oct. 2016, ARTHRITIS & RHEUMATOLOGY, 68, EnglishA Novel Pharmacological Action of MTX on RA Fibroblast-like Synoviocytes Via Circadian Clock GenesSummary international conference
- Oct. 2016, ARTHRITIS & RHEUMATOLOGY, 68, EnglishTCZ Modulates the Production of Ccfdna Derived from RA Synovial CellsSummary international conference
- Oct. 2016, ARTHRITIS & RHEUMATOLOGY, 68, EnglishIL-6 and TNF-alpha Modulate Expressions of Cell Cycle Regulators of Rheumatoid Arthritis Fibroblast-like SynoviocytesSummary international conference
- Oct. 2014, ARTHRITIS & RHEUMATOLOGY, 66, S457 - S458, EnglishTNF-a Modulates the Expression of Circadian Clock Genes Via Calcium Signaling in Rheumatoid Synovial CellsSummary international conference
■ Research Themes
- 日本学術振興会, 科学研究費助成事業, 基盤研究(C), 神戸大学, Apr. 2025 - Mar. 2028時計遺伝子を標的とした心不全の新規検査法、治療法の開拓
- 公益財団法人 ひょうご科学技術協会 令和5年度学術研究助成, Apr. 2026 - Mar. 2027, Principal investigator難治性関節リウマチに挑む:時計遺伝子BMAL1を標的とした創薬戦略
- 2024年度 神戸大学GAPファンドプログラム(うりぼーファンド), Jul. 2024 - Mar. 2025, Principal investigator関節リウマチの新規治療薬「抗circulating cell-free DNA抗体」とコンパニオン診断薬の開発
- 日本学術振興会, 科学研究費助成事業, 若手研究, 神戸大学, Apr. 2023 - Mar. 2025関節リウマチ滑膜細胞の時計遺伝子Bmal1がNF-κBの転写活性に与える影響
- Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Early-Career Scientists, Kobe University, Apr. 2021 - Mar. 2023The procuction of inflammatory mediators anc autocrine via clock genes in RA-FLSThe expressions of inflammatory mediators (MMP-3/9, IL-6, CCL2) were increased by TNF-a and IL-1b, but siRNA/Bmal1 attenuated the expressions in RA-FLS. This result indicated that inflammatory mediators related to bone destruction and cell migration were broadly controlled by Bmal1. Based on these results, we could hypothesize that Bmal1 regulated the expressions of inflammatory mediators by transcriptional activity of NF-kB.
