在类风湿性关节炎纤维细胞样同胞细胞中对homeobox D10表达的联合特异性调节
Hyeonjeong Lee1, Camilla R L Machado1, Deepa Hammaker1
1Division of Rheumatology, Allergy and Immunology, School of Medicine, University of California San Diego, La Jolla, California, United States of America.
PloS one
|June 3, 2024
概括
风湿性关节炎 (RA) 纤维细胞样同胞细胞 (FLS) 的表观遗传差异影响关节特异性HOXD10表达. 基因组脱乙酶1 (HDAC1) 抑制使这些模式正常化,这表明RA关节参与的治疗标.
科学领域:
- 类风湿病学 类风湿病学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- 类风湿性关节炎 (RA) 是一种系统性自身免疫性疾病,导致关节炎症和破坏.
- 关节炎表现出关节特定的参与模式,其潜在机制不明确.
- 在RA中报告了明显的表观遗传模式,因关节位置而异.
研究的目的:
- 研究RA患者不同关节的纤维细胞样同胞细胞 (FLS) 的表观遗传景观.
- 专注于Homeobox (HOX) 转录因子的表达和调节,特别是HOXD10.
- 阐明表观遗传修饰在关节特异性HOX基因表达在RA中的作用.
主要方法:
- 从RA患者的关节和膝关节内膜中收集和分析纤维细胞状突细胞 (FLS).
- 对HOX转录因子的评估基因表达,专注于HOXD10.
- 评估了表观遗传修饰,包括在HOXD10促进体上的染色质可访问性和基因素标记.
- 利用小分子抑制剂和siRNA来向组织脱乙酶 (HDAC),特别是HDAC1.
主要成果:
- 发现HOXD10表达与部FLS相比,在膝盖FLS中受到差异调节.
- 在膝关节和部FLS之间的HOXD10促进器区域中发现了表观遗传差异,包括基因组乙化.
- 抑制或缺乏HDAC1导致关节特异性HOXD10表达模式的正常化.
结论:
- 表观遗传机制,特别是由HDAC1调节的基因组乙化,对于RA中的关节特异性HOXD10表达至关重要.
- 这些发现表明,表观遗传失调有助于RA的区域方面.
- 向HDAC1可能提供一种潜在的治疗策略,用于管理类风湿性关节炎的关节特异性表现.
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