抑制HDAC6调节了基质硬度介导的炎症信号在细胞中
Yang Zhang1,2, Godfred K Tawiah2, Yanjun Zhang2,3
1Department of Histology and Embryology, Shanxi Medical University, Jinzhong 030604, China.
Acta biochimica et biophysica Sinica
|August 30, 2023
概括
刚性基板和HDAC6抑制可以减少炎症,并保护骨关节炎的关节基质. 这项研究强调了对治疗策略增强的冠状细胞机械敏感性.
科学领域:
- 生物材料科学 生物材料科学
- 细胞生物学 细胞生物学
- 类风湿病学 类风湿病学
背景情况:
- 骨关节炎 (OA) 是一种慢性关节疾病,治疗选择有限.
- 软骨细胞,软骨内的细胞,对机械线索敏感,这使得机械疗法成为一个有前途的研究方向.
- 细胞外矩阵 (ECM) 刚性显著影响状细胞的行为和生存.
研究的目的:
- 为了研究基质刚度对炎症环境中的冠状细胞的影响.
- 探索素脱乙酶6 (HDAC6) 抑制在调节细胞对机械和炎症刺激的反应中的作用.
- 确定基质刚性和HDAC6抑制如何影响红细胞中初级乳毛.
主要方法:
- 利用聚二甲基 (PDMS) 来制造具有不同硬度的基板.
- 应用介素-1β (IL-1β) 模拟炎症环境.
- 使用的图巴斯丁A (Tub A) 抑制HDAC6.
- 分析了冠状细胞形态,初级乳毛长度和频率,以及矩阵特征.
主要成果:
- 刚性基板表现出抗炎作用,并支持比软基板优越的矩阵环境.
- 抑制HDAC6减轻了IL-1β诱导的炎症,促进了冠状细胞的扩散和初级乳毛的延长.
- 在没有IL-1β和Tub A的情况下,主要的乳毛长度取决于度,而不是频率,乳毛在硬基质上更长.
结论:
- 刚性基质,炎症和HDAC6抑制共同增强了初级乳毛细胞的机械敏感性.
- 基质刚度在调解抗炎作用和矩阵保护方面发挥着至关重要的作用.
- 研究结果表明,通过操纵矩阵刚度和HDAC6活性,可以为OA提出潜在的治疗策略.
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