内源逆元素激活与早期类风湿性关节炎中的干扰素-α生产和抗周期性酸自抗体生成有关
Faye A H Cooles1, Gemma Vidal Pedrola1, Najib Naamane1
1Newcastle University, Newcastle upon Tyne, United Kingdom.
Arthritis & rheumatology (Hoboken, N.J.)
|December 16, 2024
概括
内源逆元素 (ERE) 在早期类风湿性关节炎 (eRA) 中显著表达,与1型干扰素 (IFN-I) 和抗CCP抗体相关. 在RA的发展中,ERE可能起到作用,建议新的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 类风湿病学 类风湿病学
背景情况:
- 已知内源逆元素 (ERE) 刺激1型干扰素 (IFN-I) 的产生.
- 作为类风湿性关节炎 (RA) 中的干扰因子触发剂,ERE 的作用仍然未被探索.
- 在早期RA (eRA) 中,IFN-I水平升高.
研究的目的:
- 研究EREs在早期RA中的表达.
- 在eRA中探索ERE和IFN-I生产之间的关联.
- 为了确定潜在的REE参与RA病理生理学.
主要方法:
- 在使用RT-PCR和NanoString的全血和突组织中检查了ERE表达 (LTR,LINE-1,SINE) 在未经治疗的eRA全血和突组织中.
- 评估IFN-α活动并行.
- 通过流动细胞计量分析了来自eRA和早期牛皮关节炎 (ePsA) 患者的循环淋巴细胞子集.
- 重新询问现有的RA和骨关节炎 (OA) 突单细胞测序数据的重复元素.
主要成果:
- 在eRA突组织中观察到所有ERE类和IFNA的显著共表达.
- 在全血LINE-1表达和eRA中循环的IFN-α蛋白和抗CCP标位之间发现了积极的关联.
- 与ePsA相比,在循环的eRA B细胞中,特别是天真B细胞中,ERE表达最高.
- 与OA相比,LTRs,特别是HERVK,在已建立的RA突中增加了,ERE表达与突子子子集之间增加的IFN-I信号相关.
结论:
- 在eRA中首次报告了外周血液和突肌RE表达.
- 这些发现突出了ERE和RA的IFN-I生产之间的潜在因果关系.
- 这项研究表明,ERE可能有助于RA病理生理学,为新的治疗策略提供了潜力.
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