第一种类型的干扰素刺激基因预测系统性红斑狼患者对贝利穆巴的临床反应
Hanchao Li1, Bomiao Ju1, Jing Luo1
1Department of Rheumatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China.
European journal of pharmacology
|December 13, 2024
概括
I型干扰素 (IFN-I) 反应是系统性红斑狼 (SLE) 的关键. 一个新的IFN签名得分准确地预测了SLE患者的贝利马布治疗疗效,显示了改善的临床标志物和B细胞减少.
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 遗传学 是一个
背景情况:
- I型干扰素 (IFN-I) 反应在全身性红斑狼 (SLE) 中至关重要.
- 干扰素刺激基因 (ISG) mRNA水平用于评估SLE中IFN活性.
- 在SLE患者接受贝利马布治疗期间,ISG的行为仍然没有特征.
研究的目的:
- 为了研究SLE患者中ISG的特征,SLE患者接受了belimumab治疗.
- 为了确定预测贝利穆马布疗效的ISG.
- 开发和验证IFN签名得分,用于预测SLE的治疗反应.
主要方法:
- 招募了53名接受贝利马布的SLE患者,评估了3,6和12个月的临床反应.
- 在基线和3个月通过定量实时PCR在外围血液单核细胞 (PBMC) 中25个ISG的量化表达水平.
- 利用LASSO-逻辑回归来识别预测基因,并为IFN签名得分开发了一个多变量逻辑回归模型.
主要成果:
- 确定了五种基因 (CXCL10,EPSTI1,HECR6,IFI27,IFIH1) 预测贝利马布的疗效.
- 在12个月后,IFN签名得分积极预测了SLE响应者指数 (SRI) (AUC=0.940).
- 评分≥0的患者表现出较高的SRI率,改善的临床标志物和更快的B细胞衰减.
结论:
- 在贝利马布治疗3个月后,IFN-I诱导基因的表达水平会发生变化.
- 开发的IFN签名得分可靠地预测6个月和12个月后的SRI反应.
- 这一分数为预测SLE患者贝利马布治疗结果提供了有价值的工具.
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