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2020 Fiscal Year Final Research Report

Analysis of male infertility and peroxisome dysfunction

Research Project

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Project/Area Number 17K11208
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Urology
Research InstitutionSaitama Medical University

Principal Investigator

Mizuno Yumi  埼玉医科大学, 医学部, 講師 (20584014)

Co-Investigator(Kenkyū-buntansha) 水野 洋介  埼玉医科大学, 医学部, 准教授 (30406532)
Project Period (FY) 2017-04-01 – 2021-03-31
Keywords不妊症 / 男性不妊症 / ペルオキシソーム / 奇形精子
Outline of Final Research Achievements

We have revealed that abnormalities in the plasmalogen synthesis process result in malformed sperm. In this study, we show that oral administration of plasmalogen precursors helps improve acrosome formation in malformed sperm. Tysnd1 KO mice that have abnormal peroxisomal lipid metabolism, abnormalities occur in the formation of acrosome membranes or adhesion between membranes in sperms. In addition, we found that the cytoplasm remain partly during the morphology changes of sperm. Next, in the analysis of human sperm, we were able to discover a molecule that can be a marker for male infertility.

Free Research Field

生殖医学

Academic Significance and Societal Importance of the Research Achievements

本研究では、これまで詳細のわかっていなかった、精子形成におけるペルオキシソームの役割について明らかにすることができた。また、男性不妊症のマーカーになりうる分子を見つけることができた。少子高齢化が進む日本では、不妊症の治療に関わる知見は重要であり、本研究での奇形精子の発症メカニズムに関する成果は、将来の不妊症の治療や男性不妊症の検査マーカーとして役立てられる可能性がある。

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Published: 2022-01-27  

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