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2023 Fiscal Year Final Research Report

Involvement of fatty acid receptors in the mechanism of chronic pain induced by stress exposure

Research Project

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Project/Area Number 21K08983
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55050:Anesthesiology-related
Research InstitutionKobe Gakuin University

Principal Investigator

NAKAMOTO Kazuo  神戸学院大学, 薬学部, 准教授 (30432636)

Co-Investigator(Kenkyū-buntansha) 糟谷 史代  神戸学院大学, 薬学部, 教授 (80131522)
徳山 尚吾  神戸学院大学, 薬学部, 教授 (70225358)
Project Period (FY) 2021-04-01 – 2024-03-31
Keywords慢性疼痛 / ストレス / 脂肪酸受容体 / GPR40/FFAR1
Outline of Final Research Achievements

To clarify the involvement of long-chain fatty acid receptor (GPR40/FFAR1) in stress-induced chronic pain, we aimed to generate mice with selective GPR40/FFAR1 knockout in intestinal epithelial cells. First, GPR40-Floxed/Neo(+) were mated with Actb-FLp mice to delete neomycin. And then, C57BL6N mice were mated with GPR40-Floxed/Neo (-)FLP(+) mice to generate GPR40-Floxed/Neo (-)FLP(-) mice. GPR40-Floxed/Neo (-)FLP(-) mice were crossed with Vil1 Cre/ERT mice, which express Cre recombinase and mutant estrogen receptor (ERT) in intestinal epithelial cells. Finally, we got intestinal epithelial cell-specific GPR40/FFAR1-deficient mice.

Free Research Field

中枢薬理学、疼痛学

Academic Significance and Societal Importance of the Research Achievements

本研究は、腸管上皮細胞特異的に GPR40/FFAR1 を欠損させたGPR40CKOマウスの作製に成功した。本マウスは、腸管GPR40/FFAR1の新たな役割の発見やその生理学的意義の解明に貢献できるため、その社会的意義は大きい。さらに、GPR40-Floxed マウスと他のCreドライバーマウスを交配させることで、様々な組織におけるGPR40/FFAR1をノックダウンまたはノックインできる。本研究成果は、新たなGPR40/FFAR1の生理作用の解明につながることが期待される。

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Published: 2025-01-30  

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