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2023 Fiscal Year Final Research Report

Clarification of the role of eukaryotic elongation factor 2 kinase in the central nerves and kidney and the exploration for therapeutic agents for hypertension

Research Project

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Project/Area Number 22K20617
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0605:Veterinary medical science, animal science, and related fields
Research InstitutionKitasato University

Principal Investigator

Kodama Tomoko  北里大学, 獣医学部, その他 (20962939)

Project Period (FY) 2022-08-31 – 2024-03-31
KeywordseEF2K / 高血圧 / 糖尿病 / 一酸化窒素 / SGLT2
Outline of Final Research Achievements

Eukaryotic elongation factor 2 kinase (eEF2K) repressively regulates protein translation. The aim of this study was to elucidate the mechanisms of eEF2K-mediated regulation of hypertension, focusing on the central nervous system and kidney. I showed for the first time that A484954, a selective eEF2K inhibitor, induces natriuresis via nitric oxide synthesis in a rat model of essential hypertension and also that it induces natriuresis, hypotension, hypoglycemia, and inotropic effects in a rat model of obesity and type 2 diabetes. In the preliminary experiments, I found that intracerebroventricular administration of eEF2K siRNA to Wistar rats had no effect on systemic blood pressure.

Free Research Field

循環薬理学

Academic Significance and Societal Importance of the Research Achievements

2型糖尿病患者は2040年までに4億人から6億人に増加することが予測されており、高血圧は14億人が罹患している。また2型糖尿病患者の85%は高血圧を発症し、高血圧患者の50%が2型糖尿病を発症することから、高血圧と糖尿病は世界的な問題である。よって、新規治療薬の開発は重要な課題である。本研究で明らかにしたeEF2Kによる血管、腎臓、心臓といった多臓器に対する作用を介した高血圧と糖尿病の新たな病態制御機構は、循環器疾患の新規治療薬の開発の礎になる可能性がある。

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Published: 2025-01-30  

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