• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2023 Fiscal Year Final Research Report

Analysis of the role of pathogenic T cells in Sjogren's syndrome pathogenesis

Research Project

  • PDF
Project/Area Number 20K18296
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56050:Otorhinolaryngology-related
Research InstitutionToho University

Principal Investigator

Inoue Akiko  東邦大学, 医学部, 助教 (40770475)

Project Period (FY) 2020-04-01 – 2024-03-31
Keywordsシェーグレン症候群 / 病原性T細胞
Outline of Final Research Achievements

In this study, we investigated the pathogenesis of Sjogren's syndrome (SS) using a SS mouse model. We generated T cell hybridomas with cervical lymph node cells from the SS model mice and isolated the T cell receptor genes. We found that length of complementarity-determining region (CDR) 3 sequences in the TCR genes from the established hybridomas was shorter than T cells from cervical lymph nodes in WT mice. These results suggest that salivary gland-infiltrating T cells in SS model mouse are embryonic origin.

Free Research Field

耳鼻咽喉科免疫アレルギー

Academic Significance and Societal Importance of the Research Achievements

シェーグレン症候群(Sjogren's syndrome; SS)の発症原因は不明で、特異的な治療法もまだ確立されていない。本研究で用いたシェーグレン症候群(SS)疾患モデルマウスは、ヒトSSの診断に用いられる抗SSA、抗SSBなどの自己抗体産生が上昇する以前に唾液腺、涙腺などの組織破壊と機能障害が始まる。また、生後4週齢のSS疾患モデルマウス唾液腺には既にT細胞浸潤が認められる。よってこのSS疾患モデルマウスを用いてSS発症初期に局所でT細胞が起こす免疫反応を明らかにできれば、SS発症初期に自己反応性T細胞の活性化を制御する方法を見出せる可能性が考えられる。

URL: 

Published: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi