贝图林酸通过限制NLRP3炎症酶激活来减轻骨关节炎,从而减轻INTERLEUKIN-1β成熟和分泌
Bo Liu1,2,3, Yanglin Wu2,3,4, Ting Liang3
1Department of Orthopaedics, People's Hospital of Leshan, 238 Baita Road, Leshan 614000, Sichuan, China.
Mediators of inflammation
|October 4, 2023
概括
贝图林酸 (BA) 可以通过抑制NLRP3炎症酶通路来保护骨关节炎 (OA). 这种化合物减少了炎症和软骨恶化,为OA提供了潜在的治疗策略.
科学领域:
- 生物化学 生化学
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 骨关节炎 (OA) 是一种普遍存在的退行性关节疾病.
- NLRP3炎症酶激活和随后的IL-1β分泌与OA进展有关.
- 树提取物贝鲁林酸 (BA) 对OA的保护作用和机制在很大程度上仍未被探索.
研究的目的:
- 研究贝鲁林酸 (BA) 在预防骨关节炎 (OA) 的潜力.
- 阐明BA可能对OA产生保护作用的潜在机制,重点关注NLRP3炎症体通路.
主要方法:
- 在体内研究中使用了OA小鼠模型与步态分析,ELISA,微CT,SEM,组织学,IHC,IF染色和AFM.
- 在体外研究评估了骨髓衍生的巨细胞 (BMDMs) 中的caspase-1,IL-1β和GSDMD-NT水平,使用ELISA,西部斑点和免疫光.
- 小鼠接受了5和15mg/kgBA的腹腔内注射.
主要成果:
- 在小鼠模型中,贝图林酸 (BA) 剂量 (5和15 mg/kg) 推迟了OA的进展.
- BA治疗缓解了DMM诱导的软骨恶化,亚冠骨硬化和突炎症.
- 在体外,BA抑制了BMDM中的NLRP3炎症酶激活,减少了IL-1β的成熟和分泌.
结论:
- 贝图林酸 (BA) 显示出对骨关节炎 (OA) 的保护作用.
- BA通过抑制NLRP3炎症酶激活来减弱OA,从而降低IL-1β的成熟和分泌.
- 这些发现表明BA作为OA管理的潜在治疗剂.
相关概念视频
The JAK-STAT Signaling Pathway
9.0K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
9.0K
T Cell Types and Functions
1.1K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.1K


