跨抗脂综合征谱的I型干扰素通路激活:与疾病子集的关联和全身抗脂综合征呈现
Irene Cecchi1,2, Massimo Radin1,2, Alice Barinotti1,2
1University Center of Excellence on Nephrologic, Rheumatologic and Rare Diseases (ERK-Net, ERN-Reconnect and RITA-ERN Member) with Nephrology and Dialysis Unit and Center of Immuno-Rheumatology and Rare Diseases (CMID), Coordinating Center of the Interregional Network for Rare Diseases of Piedmont and Aosta Valley, San Giovanni Bosco Hub Hospital, Turin, Italy.
Frontiers in immunology
|March 29, 2024
概括
I型干扰素 (IFN-I) 途径激活在抗脂抗体 (aPL) 阳性个体中很常见. 这项研究在抗脂综合征 (APS) 谱子集中发现了明显的IFN-I特征,提供了新的临床见解.
科学领域:
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
- 遗传学 是一个遗传学.
背景情况:
- I型干扰素 (IFN-I) 途径在自身免疫中至关重要,但其在抗脂抗体 (aPL) 阳性个体中的作用尚不清楚.
- 了解aPL携带者和抗脂综合征 (APS) 患者的IFN-I激活对于疾病的表征至关重要.
研究的目的:
- 描述aPL阳性子集的光谱中的I型干扰素 (IFN-I) 路径激活.
- 在不同的aPL阳性组中识别不同的IFN-I签名.
主要方法:
- 招募了112名患者:29名aPL携带者,31名初级APS (PAPS),25名二级APS (SAPS),27名没有aPL的SLE患者和44名健康对照 (HC).
- 在全血中评估基因表达 (IFI6,IFI44,IFI44L,MX1,IFI27,OAS1,RSAD2) 以计算复合IFN得分.
- 利用无监督的集群分析,对应分析和网络分析来识别模式和差异.
主要成果:
- 在整个APS频谱中观察到IFN-I通路激活,子集之间的定量差异.
- 与HC相比,aPL携带者和PAPS患者的IFN得分较高,SAPS和SLE患者的IFN得分进一步增加.
- 集群和网络分析揭示了不同的IFN-I模式,其特征是不同的aPL阳性子集,与临床结果的相关性各不相同.
结论:
- IFN-I通路激活是aPL阳性个体的共同特征.
- 在IFN-I激活中的质量和数量差异定义了APS频谱中不同的签名.
- 这些独特的IFN-I特征具有超越当前疾病分类的潜在临床价值.
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