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2023 Fiscal Year Final Research Report

Elucidation of Endogenous Oxytocin's Pain Perception and Modulation Mechanisms by using Artificial Receptor Gene

Research Project

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Project/Area Number 21K06779
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48020:Physiology-related
Research InstitutionUniversity of Occupational and Environmental Health, Japan

Principal Investigator

Yoshimura Mitsuhiro  産業医科大学, 医学部, 訪問研究員 (00464462)

Co-Investigator(Kenkyū-buntansha) 上田 陽一  産業医科大学, 医学部, 教授 (10232745)
Project Period (FY) 2021-04-01 – 2024-03-31
Keywordsオキシトシン / DREADDs / トランスジェニックラット / 疼痛 / 抗炎症
Outline of Final Research Achievements

Oxytocin is a hormone known for its involvement in physiological processes such as childbirth and lactation. Recent studies suggest its involvement in pain. Using genetically modified rats with artificially inserted receptor genes, we have demonstrated the significant role of oxytocin in pain perception and modulation. Activation of oxytocin neurons was shown to activate the descending pain inhibitory system centrally, suppressing sensory transmission, and inhibiting mast cell degranulation peripherally to alleviate local inflammation, resulting in a reduction in pain perception.

Free Research Field

神経内分泌学

Academic Significance and Societal Importance of the Research Achievements

この研究は、オキシトシンが痛み知覚と調節に重要な役割を果たすことを内因性のオキシトシンニューロンを活性化させる手法を用いて直接的に証明したものである。したがって、新たな疼痛治療法の開発や、疼痛管理の向上につながる可能性を秘めている。これらの研究成果は、これまでにない視点から身体的なプロセスを理解する手掛かりとなり、神経科学分野における基礎研究、ひいては臨床応用を見据えた橋渡し研究に貢献する。

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Published: 2025-01-30  

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