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2023 Fiscal Year Final Research Report

Uncovering the mechanisms of oocyte selection in fetal development

Research Project

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Project/Area Number 22K20629
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 InstitutionOsaka University

Principal Investigator

NAITOU Yuki  大阪大学, 大学院医学系研究科, 特任研究員(常勤) (20962723)

Project Period (FY) 2022-08-31 – 2024-03-31
Keywords生殖細胞 / イメージング
Outline of Final Research Achievements

During the development of the mammalian oocytes, approximately two-thirds of all oocytes are lost through cell death at certain times during fetal development. Why is large-scale cell death of oocytes induced? This study aims to elucidate the mechanisms that determine the fate of life and death and to explore the physiological significance of this process. Using an in vitro induction system of female germ cells from pluripotent stem cells, we established a live-cell imaging system to observe the sequence of events leading to oocyte cell death, and observed the relationship between cell death and the dynamics of intracellular organelles.

Free Research Field

発生生物学

Academic Significance and Societal Importance of the Research Achievements

本研究は、卵子の発生過程において、どのような機構でその生死が選択されるのかを解明することを目的としている。卵子におけるダイナミックな細胞内小器官 (細胞内で特定の機能を持つ構造体)の動態を追跡することで、卵子の運命決定機構の解明を目指した。本研究は、どのようにして細胞の運命が決まるのかという細胞生物学的な問いに答えるだけでなく、卵子の質をどのように維持しているのかという社会的に重要な問いに答えることにもつながる。

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Published: 2025-01-30  

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