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2022 Fiscal Year Final Research Report

Clinical features of autoantibody-mediated small fiber neuropathy and developing novel neuropathic pain treatments using animal models

Research Project

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Project/Area Number 21K15700
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52020:Neurology-related
Research InstitutionKyushu University

Principal Investigator

Fujii Takayuki  九州大学, 医学研究院, 助教 (30822481)

Project Period (FY) 2021-04-01 – 2023-03-31
Keywords神経障害性疼痛 / 小径線維ニューロパチー / 自己抗体
Outline of Final Research Achievements

In this study, anti-Plexin D1 autoantibodies were detected in 15.8% of idiopathic small fiber neuropathy patients, who showed a high frequency of pricking pain and burning pain. Moreover, we focused on anti-Annexin A2 autoantibodies as a novel neuropathic pain related autoantibody.The frequency of anti-Annexin A2 autoantibodies was higher in patients with neuropathic pain than in healthy controls and patients without neuropathic pain. We have revealed the prevalence and clinucal features of autoantibody-mediated small fiber neuropathy and neuropathic pain.

Free Research Field

神経内科学

Academic Significance and Societal Importance of the Research Achievements

小径線維ニューロパチーの原因の約半数は不明とされてきたが、本研究により抗Plexin D1抗体や抗Annexin A2抗体が小径線維ニューロパチーの新たな原因である可能性を示すことができた。原因不明の小径線維ニューロパチーにおいて、小径線維に結合する自己抗体を測定することにより原因を特定できる可能性がある。さらに、今後、自己抗体介在性ニューロパチーにおける免疫治療に対する効果が明らかとなった際には、これら自己抗体が免疫治療選択バイオマーカーとなる可能性がある。

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Published: 2024-01-30  

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