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Updated: Jan 7, 2026

Induction of Murine Intestinal Inflammation by Adoptive Transfer of Effector CD4+CD45RBhigh T Cells into Immunodeficient Mice
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Curcumin Modulates TIGIT/Neuropilin-1 to Regulate T-Cell Immune Homeostasis in Ulcerative Colitis.
Yazhen Liu1,2, Jiaqi Huang1,2, Ji Yu1,2
1Graduate School, Jiangxi University of Chinese Medicine, Nanchang 330004, China.
Curcumin (CUR) helps ulcerative colitis (UC) by restoring T cell balance. It works by downregulating TIGIT and Neuropilin-1 (NRP1) to reduce T cell activation and improve gut inflammation.
Area of Science:
- Immunology
- Gastroenterology
- Pharmacology
Background:
- Ulcerative colitis (UC) involves T cell immune dysregulation.
- Curcumin (CUR) has anti-inflammatory properties but its UC mechanisms are unclear.
- Restoring T cell homeostasis is key for UC treatment.
Purpose of the Study:
- Investigate CUR's therapeutic mechanisms in UC.
- Focus on CUR's role in modulating TIGIT and NRP1.
- Determine CUR's effect on T cell homeostasis in UC.
Main Methods:
- DSS-induced murine colitis model.
- Network pharmacology and molecular docking.
- In vitro assays with Jurkat T cells.
Main Results:
- CUR improved UC clinical and histopathological outcomes.
- CUR restored T cell and memory T cell subset balance.
- CUR downregulated TIGIT and NRP1 in inflamed tissue and T cells.
Conclusions:
- CUR exhibits novel immunoregulatory mechanisms in UC.
- CUR modulates TIGIT/NRP1 to inhibit T cell activation.
- CUR shows potential for restoring immune homeostasis in UC.
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