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2021 Fiscal Year Final Research Report

Elucidation of pathoetiology of porphyria by using a mouse model

Research Project

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Project/Area Number 19K06455
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 42040:Laboratory animal science-related
Research InstitutionShinshu University

Principal Investigator

Mori Masayuki  信州大学, 学術研究院医学系, 准教授 (60273190)

Project Period (FY) 2019-04-01 – 2022-03-31
Keywordsポルフィリン症 / モデルマウス / 遺伝子 / 組織障害 / 肝臓 / 皮膚 / 小胞体ストレス / タンパク質凝集
Outline of Final Research Achievements

Pathological and molecular genetic analysis of mice with a hypomorphic mutation in the coproporphyrinogen oxidase gene revealed that this mouse develops a pathological condition in the liver similar to that of human hereditary porphyria patients. It was also clarified that aggregation of proteins and the enhanced endoplasmic reticulum stress response caused by excessively accumulated coproporphyrin in cells underlie the pathological condition and cataracts of the mice.

Free Research Field

実験動物学

Academic Significance and Societal Importance of the Research Achievements

指定難病の一つであり、多彩な病態を発現するが、その発症機序が不明、かつ有効な治療・薬剤が無い遺伝性ポルフィリン症の発症機序の一つが、細胞内でのタンパク質凝集と小胞体ストレスの亢進であることを示した。これらの経路を標的とした遺伝性ポルフィリン症の医療の開発に新たな方向性を示すことができた。

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Published: 2023-01-30  

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