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循环中的失调的I/III型干扰素系统来自抗MDA5阳性皮肤肌炎患者

Akira Yoshida¹, Takahisa Gono^1,2, Yuka Okazaki¹

¹Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine, 1-1-5, Sendagi, Bunkyo-Ku, Tokyo, 113-8602, Japan.

Scientific reports

|July 15, 2025

概括

升高的I型和III型干扰素 (IFN) 是抗黑色素瘤分化相关基因5 (MDA5) 阳性皮肤肌炎 (DM) 的标志. 特定的IFN模式预测快速进展的间歇性肺病 (RP-ILD) 和这些患者的生存率.

科学领域:

免疫学免疫学免疫学
类风湿病学类风湿病学
肺部病理学肺部病理学

背景情况:

与抗黑色素瘤分化相关的5基因 (MDA5) 阳性皮肤肌炎 (DM) 经常导致快速进展的间歇性肺病 (RP-ILD) 和死亡率.
此前曾涉及I型干扰素 (IFN),但最近的研究表明,III型干扰素,特别是IFN-λ3.3,可能起作用.

研究的目的:

在诊断时检查抗MDA5阳性DM患者的血清细胞因子配置,包括I,II和III型IFN.
确定与疾病亚型和临床结果相关的特定IFN模式,特别是RP-ILD.
评估血清IFN水平作为预后生物标志物的潜力.

主要方法:

在诊断时从抗MDA5阳性DM患者的血清样本中分析了一系列细胞因子.
细胞因子水平与其他肌肉炎亚型,全身性红斑狼和COVID-19肺炎进行了比较.
对血清I型和III型IFN水平进行了集群分析,以确定患者子组.
验证是使用独立患者队列进行的.

主要成果:

与其他疾病相比,抗MDA5阳性DM的特征是血清IFN-β和IFN-λ3的升高.
较高的IFN-λ3水平与循环中的CD56dimCD16pos自然杀手 (NK) 细胞的减少相关.
集群分析揭示了三个不同的IFN配置文件,单独IFN-λ3的显著增加与RP-ILD和较差的存活率有关.
这些发现在验证队列中是一致的.

结论:

抗MDA5阳性DM的独特细胞因子配置包括I型和III型IFN的上调.
血清I型和III型IFN水平可以区分抗MDA5阳性DM与其他疾病.
血清I/III型IFN水平作为预测RP-ILD和抗MDA5阳性DM生存的有价值的预后生物标志物.

关键词:

自动抗体是一种自身抗体.皮肤肌肉菌性炎 (dermatomyositis) 是一种疾病.干扰素兰巴达 (英语:Interferon lambda) 是一种干扰素.间歇性肺病间歇性肺病 MDA5 MDA5 MDA5 的意思是什么意思在 NK 细胞中,NK 细胞是 NK 细胞.

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