Research Project
Grant-in-Aid for Scientific Research (C)
I attempted to prove the mechanism of membrane-type collectin CL-P1-mediated complement activation in vivo using wild-type mice, and demonstrated by fluorescent immunostaining that complement factor C1q binds to pentraxin in a concentration-dependent manner, activating the complement pathway and forming a membrane-damaging complex. Furthermore, by overexpressing CL-P1 in various human vascular endothelial cells and adding human CFH-deficient serum, I attempted to reproduce cellular injury in vitro and confirmed complement activation, although the reactivity differed from cell to cell. Although CL-P1 expression was not upregulated, I found that inflammatory cytokines induced the deposition of complement factor C3 on the cell surface, leading to MAC formation.
補体活性化経路において膜結合型コレクチンCL-P1が活性化に寄与する報告はなく、新たな補体活性化メカニズムの提供に寄与する成果である。今後他の補体関連因子との関連性について研究が進むことにより新たな役割の解明が期待される。臨床的には原因不明の血管障害に新たなメカニズムを提案し、発症のメカニズムが解明されていない関連疾患の解明や治療戦略において重要な知見を提供する研究である。
All 2021 2020 2019 2018 2017
All Journal Article (10 results) (of which Peer Reviewed: 9 results, Open Access: 7 results) Presentation (24 results) (of which Int'l Joint Research: 2 results, Invited: 6 results)
Frontiers in Immunology
Volume: 12 Pages: 695037-695037
10.3389/fimmu.2021.695037
120007124372
Medicine
Volume: 100 Issue: 13 Pages: e25265-e25265
10.1097/md.0000000000025265
Internal Medicine
Volume: 59 Issue: 1 Pages: 93-99
10.2169/internalmedicine.3315-19
130007779300
Nephron
Volume: 144 Issue: Suppl. 1 Pages: 7-12
10.1159/000512494
120007193551
Methods Mol Biol
Volume: 2132 Pages: 99-109
10.1007/978-1-0716-0430-4_10
BRAIN and NERVE
Volume: 71 Issue: 6 Pages: 555-564
10.11477/mf.1416201316
補体
Volume: 56 Pages: 13-22
120006901058
Clinical and Applied Thrombosis/Hemostasis
Volume: 25 Pages: 1-6
10.1177/1076029618821189
120006901059
血液内科
Volume: 78 Pages: 184-191
腎と透析
Volume: 83 Pages: 538-543