2023 Fiscal Year Final Research Report
Development of innovative treatments for rare and intractable diseases based on natural pharmaceutical resources
Project/Area Number |
20H03408
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 47060:Clinical pharmacy-related
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Research Institution | Waseda University |
Principal Investigator |
Hara Taichi 早稲田大学, 人間科学学術院, 教授 (00392374)
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Co-Investigator(Kenkyū-buntansha) |
吉崎 嘉一 神戸大学, 医学研究科, 特命講師 (50393161)
宇都 拓洋 長崎国際大学, 薬学部, 教授 (90469396)
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Project Period (FY) |
2020-04-01 – 2024-03-31
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Keywords | 変異膜タンパク質 / 生薬 / CMT病 / PMP22 / 神経変性疾患 / オートファジー |
Outline of Final Research Achievements |
A number of rare and intractable diseases have been reported in which inherited mutations cause excessive accumulation of mutant membrane proteins in the endoplasmic reticulum, resulting in severe disease. In many of these diseases, the induction of cellular damage by excessive accumulation of mutant membrane proteins in the endoplasmic reticulum is thought to be one of the causes of disease. Therefore, the aim of this study was to develop therapeutic seeds for diseases associated with mutant membrane proteins by conducting the following studies. The following results were obtained. (1) Selection of herbal medicines that inhibit the accumulation of CMT disease-related mutant membrane proteins in the endoplasmic reticulum and identification of candidate functional ingredients. (2) Selection of herbal drugs that activate autophagy. (3) Generation of a novel mouse model of neurodegenerative disease.
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Free Research Field |
応用細胞生物学
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Academic Significance and Societal Importance of the Research Achievements |
変異膜タンパク質の小胞体蓄積が原因で発症する同様の希少難病は、患者数の少なさから製薬企業などが創薬研究開発を控える社会要因があり、有効な治療法の開発が遅れていることが大きな問題となっている。一方、それぞれの疾患の原因遺伝子は異なるものの、疾患関連変異膜タンパク質の小胞体への過剰蓄積という共通の原因が存在する。そのため、これまでの疾患単位での個別研究を変異膜タンパク質の小胞体蓄積という共通項から俯瞰的な解析を行うとこで、その小胞体局在を軽減する薬剤や関連分子を標的とした治療法を開発することができれば、多くの希少難病の治療への応用が見込まれる。それ故、本研究の社会的意義は非常に大きいと言える。
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