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2022 Fiscal Year Final Research Report

The role of Pericyte Senescence in Diabetic Complications

Research Project

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Project/Area Number 20H03572
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 52010:General internal medicine-related
Research InstitutionChiba University

Principal Investigator

Maezawa Yoshiro  千葉大学, 大学院医学研究院, 講師 (80436443)

Co-Investigator(Kenkyū-buntansha) 越坂 理也  千葉大学, 医学部附属病院, 助教 (30466700)
加藤 尚也  千葉大学, 医学部附属病院, 助教 (90841974)
Project Period (FY) 2020-04-01 – 2023-03-31
Keywords細胞老化 / 線維化
Outline of Final Research Achievements

In this study, we analyzed the role of the transcription factor Tcf21 in cardiac fibrosis, that is often observed in the elderly people. We found that Tcf21 regulates cell proliferation and matrix expression via Pdgf receptor pathway, and functions to promote fibrosis, at least in embryonic fibroblasts. We also examined kidney aging and fibrosis, and found that fibrosis is promoted in aged mice and aged diabetic mice, with increased extracellular matrix expression, altered glomerular structure, decreased vascular distribution, and cellular senescence. Single cell analysis showed that fibroblast migration and Tgfb signaling in fibroblast and pericytes are involved in the background of this fibrosis.

Free Research Field

代謝、内分泌学

Academic Significance and Societal Importance of the Research Achievements

本研究により、心臓と腎臓における、加齢に伴う線維化の機序解明を行っている。腎臓においては老化に伴う線維化や血管の減少を捕捉し、高齢マウスを用いたシングルセル解析まで到達した。今までの高齢個体の腎臓のシングルセル解析は尿細管を対象とした解析がほとんどであり、本検討により頻度の低い細胞種における老化の役割が解明できると期待される。
また、本検討によって得られる老化に伴う線維化の基盤情報は、腎臓の線維化のみならず多くの加齢関連疾患に共通するメカニズム解明につながり、加齢関連疾患に共通する治療方法へのブレークスルーをもたらす可能性がある。

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Published: 2024-01-30  

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