肌肉炎中的局部免疫球蛋白表达与干扰素马信号相关,与疾病活性相关
medRxiv : the preprint server for health sciences
|June 12, 2025
概括
肌肉中局部免疫球蛋白的产生在肌肉炎中是显著的,特别是包括体肌肉炎和抗合成酶综合征. 这种表达与疾病活性相关,涉及干扰素-马信号通路.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 类风湿病学 类风湿病学
背景情况:
- 自体抗体与肌肉炎的发病有关.
- 怀疑肌肉组织内局部产生免疫球蛋白.
研究的目的:
- 在肌肉炎子组中描述局部免疫球蛋白基因表达.
- 确定相关的分子通路.
- 与疾病活动相关联的表达.
主要方法:
- 在289个肌肉活检上进行大量RNA测序.
- 患者和对照组之间的免疫球蛋白基因表达的比较.
- 路径丰富分析和无监督的集群.
主要成果:
- 在包容体肌肉炎 (IBM) 和抗合成酶综合征 (ASyS) 中,免疫球蛋白基因表达最高.
- 主导IgG,IgA和IgM;表达与疾病活性相关.
- 与干扰素- (IFN-γ) 信号通路有着强烈的关联.
结论:
- 免疫球蛋白在肌炎肌肉中局部表达,特别是IBM和ASyS.
- 表达与疾病活性相关,并涉及IFN-γ通路.
- 提供了关于肌肉炎病原体和潜在治疗点的见解.
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