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2022 Fiscal Year Final Research Report

Discovery of new anti-diabetic drugs activating autophagy in beta cells

Research Project

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Project/Area Number 21K19515
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 54:Internal medicine of the bio-information integration and related fields
Research InstitutionJuntendo University

Principal Investigator

Watada Hirotaka  順天堂大学, 大学院医学研究科, 教授 (60343480)

Co-Investigator(Kenkyū-buntansha) 西田 友哉  順天堂大学, 医学部, 准教授 (10581449)
Project Period (FY) 2021-07-09 – 2023-03-31
Keywords膵β細胞 / オートファジー / 2型糖尿病
Outline of Final Research Achievements

Considering that the underlying pathology of type 2 diabetes is pancreatic β-cell dysfunction in response to insulin resistance, it is necessary to establish treatment methods aimed at preserving pancreatic β-cell function.
Autophagy is a major intracellular proteolytic system and plays an important role in maintaining cellular homeostasis. As a result of our previous studies, it was found that an autophagy activator specific to pancreatic β-cells may be useful. Thus, a high-throughput screening using a small molecule compound library was conducted to identify such an autophagy activator. As a result, we identified four compounds that induce autophagy in MIN6 cells, a pancreatic β-cell line, in a concentration-dependent manner. Further studies on the protective effects of these compounds on pancreatic β-cells will be conducted in the future.

Free Research Field

代謝内分泌学

Academic Significance and Societal Importance of the Research Achievements

2型糖尿病に対する治療薬は進歩を遂げているが、その根本病態である膵β細胞機能障害の抑制薬の開発には至っていない。そのような中で、本研究は、膵β細胞特異的なオートファジー活性化薬の同定により、膵β細胞保護を介した全く新規の糖尿病治療法の確立を目的とするものである。オートファジー制御による疾患治療は神経変性疾患などでも模索されているが、膵β細胞を対象とした研究は他に類をみない。そのようななかで、薬剤候補として4つの化合物を同定したことは本研究の有用性を示すとともに将来の新規糖尿病薬剤開発につながる可能性があることから、社会的意義は大きい。

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Published: 2024-01-30  

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