一个对介质素6反应的血细胞特征与系统性硬化症间歇性肺病的疾病进展有关
Guiquan Jia1, Thirumalai R Ramalingam1, Jason Vander Heiden1
1Genentech Inc, South San Francisco, CA 94080, USA.
iScience
|October 23, 2023
概括
系统性硬化症间歇性肺病 (SSc-ILD) 的托西利祖马布 (TCZ) 治疗影响了血细胞基因网络. 这些血细胞特征在SSc-ILD和异常性肺纤维化 (IPF) 肺部上升,这表明它在疾病进展中发挥了作用.
科学领域:
- 免疫学 免疫学 免疫学
- 肺部病理学 肺部病理学
- 基因组学就是基因组学.
背景情况:
- 系统性硬化症 (SSc) 间歇性肺病 (ILD) 显著影响患者的发病率和死亡率.
- 抗IL6受体抗体托西利祖马布 (TCZ) 在减缓SSc-ILD患者肺功能衰退方面表现有前途.
研究的目的:
- 研究与SSc-ILD患者对TCZ临床反应相关的基因网络.
- 探索血细胞 (PC) 在SSc-ILD病原和TCZ作用机制中的作用.
主要方法:
- 来自TCZ临床试验的皮肤活检样本的转录组分析 (faSScinate,focuSSced).
- 在纤维化SSc和异常性肺纤维化 (IPF) 肺组织中对基因表达的分析.
- 单细胞RNA测序 (scRNAseq) 用于识别SSc肺中的PC子集.
主要成果:
- 与疾病进展相关的基因模块在TCZ治疗时表现出药学动力学变化,其特征是血细胞 (PC) 基因.
- 与对照组相比,PC签名基因表达在纤维化SSc和IPF肺部显著增加.
- scRNAseq证实了SSc肺内的CD38+和CD138+PC子集中PC特征基因的共同表达.
结论:
- 血细胞及其相关的基因特征可能在纤维化间歇性肺部疾病的进展中发挥关键作用.
- 这些发现提供了关于TCZ在治疗SSc-ILD和潜在的其他纤维化肺部疾病中的治疗机制的见解.
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