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2023 Fiscal Year Final Research Report

Mechanisms underlying transdifferentiation of Kupffer's vesicle epithelial cells

Research Project

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Project/Area Number 22K20625
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0701:Biology at molecular to cellular levels, and related fields
Research InstitutionKyoto Sangyo University (2023)
The University of Tokyo (2022)

Principal Investigator

Ikeda Takafumi  京都産業大学, タンパク質動態研究所, 研究員 (40962329)

Project Period (FY) 2022-08-31 – 2024-03-31
Keywordsクッペル胞 / 分化転換 / 上皮間充織転換 / dand5 / ゼブラフィッシュ
Outline of Final Research Achievements

The Kupffer's vesicle cells in teleost embryos lose their epithelial nature and translocate to the surrounding mesodermal tissue as development progresses. In this study, we established a basis for elucidating the mechanism of transdifferentiation of Kupffer's vesicle cells, including improvement of labeling technology for these cells and search for upstream signals of transdifferentiation. In addition to the zebrafish embryos that have been used in my previous study, I have generated a transgenic line for tracking Kupffer's vesicle cells in medaka embryos, and also generated a line that can visualize Kupffer's vesicle cells from an earlier stage in zebrafish embryos.

Free Research Field

発生生物学

Academic Significance and Societal Importance of the Research Achievements

分化が進んだ動物細胞は、一般に他の系譜の細胞に再分化することはないが、主として再生過程において、特定の細胞が性質を変化させて別の細胞種となることが知られている。こうした分化転換は動物細胞の分化可塑性を解明する上で重要な研究対象であるが、その制御機構はいまだ解き明かされていない。本研究の学術的意義は、正常発生における分化転換の役割と機構に注目し、複数の生物種においてクッペル胞上皮細胞の分化転換の動態を可視化する技術を確立したことである。

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Published: 2025-01-30  

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