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2021 Fiscal Year Final Research Report

Analysis of RNA mediated molecular mechanisms of spermatogonial differentiation

Research Project

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Project/Area Number 19K15967
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 42010:Animal production science-related
Research InstitutionNational Institute of Genetics

Principal Investigator

Inoue Hiroki  国立遺伝学研究所, 遺伝形質研究系, 特任研究員 (20807812)

Project Period (FY) 2019-04-01 – 2022-03-31
Keywords生殖細胞 / RNA結合たんぱく質 / NANOS3 / GS細胞
Outline of Final Research Achievements

It has been reported that NANOS3 is expressed in the spermatogonial progenitor. In this study, to analyze the NANOS3 molecular function, we used GS cells as a model of spermatogonia. Our NANOS3 IP Mass spec analysis and NANOS3 RIPseq analysis suggested that NANOS3 interacts with the factors related to the mRNA translation and identified the candidates of NANOS3 target mRNA. We also found a candidate gene, which is indicated to be a transcript factor expressed in differentiated spermatogonia, is differentially expressed in Nanos3 KO GS cells.

Free Research Field

生殖細胞

Academic Significance and Societal Importance of the Research Achievements

NANOS3は精原細胞だけではなく始原生殖細胞の生存にも関わることが知られている。しかしながら、これらの細胞は生体内でもごく少数であるため相互作用因子や標的遺伝子の網羅的探索は行われていなかった。本研究ではGS細胞を精原細胞のモデルとして使用することで、網羅的探索を可能にし、NANOS3の分子機構について多くの手がかりを得ることができた。今後これらの解析をもとに、下流の因子を解析することで、NANOS3によるRNA制御を介した精原細胞の分化運命決定機構の解明に貢献できることが期待される。

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Published: 2023-01-30  

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