Curcumin Alleviates HMGB1-Mediated Inflammation Through the Signaling Pathway of TLR2-NF-κB in Bovine Ovarian Granulosa Cells
文献类型: 外文期刊
作者: Siqi Liu;Yingying Xie;Lei Wang;Jingyan Zhang;Xiaoliang Chen;Xiaowei Feng;Junyan Wang;Kang Zhang;Jianxi Li
作者机构:
关键词: bovine ovarian granulosa cells;curcumin;HMGB1;inflammation;TLR2
期刊名称: International Journal of Molecular Sciences
ISSN: 1422-0067
年卷期: 2025 年 26 卷 18 期
页码:
收录情况: SCIE(2025版)
摘要: Curcumin, the principal bioactive compound derived from turmeric, possesses a wide range of therapeutic properties such as anti-inflammatory, antioxidant, and wound-healing properties. Recent studies suggest that curcumin may alleviate HMGB1-mediated inflammation in ovarian cells. However, its role in modulating dysfunction in HMGB1-driven ovarian granulosa cells (OGCs) remains to be elucidated. In the present study, curcumin suppresses the HMGB1-induced overexpression of toll-like receptor 2 (TLR2) and ovulation-related factors such as EGFR, VEGF, STAR, and TIMP1/2 genes. Additionally, the elevated levels of TLR2, TLR1, TLR6, and phospho-NF-κB p65 proteins were significantly inhibited by curcumin. Further mechanistic analysis reveals that the interaction between HMGB1 and the TLR1-TLR2/TLR6 complex, as well as phospho-NF-κB p65, was restrained. This resulted in the suppression of the pro-inflammatory cytokine IL-6 production and the alleviation of the HMGB1-induced inflammation response in OGCs. Collectively, our findings demonstrate that curcumin modulates the upregulation of ovulation-related genes and pro-inflammatory cytokines in OGCs by inhibiting the TLR2-NF-κB pathway, providing a mechanistic basis for its potential application as a therapeutic agent against OGC inflammation.
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