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Updated: Dec 31, 2025

Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes
Published on: September 26, 2013
BMSC-EVs regulate Th17 cell differentiation in UC via H3K27me3
Qianyun Chen1, Xueyun Duan2, Meng Xu1
1Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
Mesenchymal stem cell extracellular vesicles reduce ulcerative colitis by inhibiting Th17 cell differentiation. This effect is linked to changes in histone H3K27me3 levels, suggesting a novel therapeutic target for inflammatory diseases.
Area of Science:
- Immunology
- Gastroenterology
- Cell Biology
Background:
- Ulcerative colitis (UC) is an inflammatory bowel disease with complex pathogenesis.
- Th17 cells play a crucial role in UC development.
- Extracellular vesicles (EVs) from mesenchymal stem cells (MSCs) show therapeutic potential for UC.
Purpose of the Study:
- To investigate the effect of MSC-EVs on Th17 cell differentiation in UC.
- To determine if MSC-EVs modulate histone H3K27me3 in UC.
- To explore the therapeutic potential of MSC-EVs for UC treatment.
Main Methods:
- TNBS-induced colitis model in rats treated with varying doses of MSC-EVs.
- Assessment of inflammation, Th17 cell differentiation, and histone H3K27me3 levels in colon tissues.
- Analysis of H3K27me3 methyltransferase and demethylase expression.
Main Results:
- MSC-EVs significantly alleviated inflammation in TNBS-induced colitis.
- MSC-EVs inhibited the abnormal differentiation of Th17 cells in UC models.
- MSC-EVs altered histone H3K27me3 content in colon tissues, correlating with therapeutic effects.
Conclusions:
- MSC-derived EVs effectively inhibit Th17 cell differentiation in ulcerative colitis.
- The therapeutic mechanism involves the regulation of histone H3K27me3.
- MSC-EVs represent a promising therapeutic strategy for UC by targeting Th17-mediated inflammation.
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