在系统性硬化症中对外周血液单细胞的综合性转录基因分析以及在自身免疫性疾病中共享的致病途径
Shaoqi Chen1, Yu Fan2, Qiulin Wu1
1The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China.
Archives of medical research
|August 29, 2024
概括
系统性硬化症 (SSc) 显示出与中性粒细胞功能和巨核细胞增加相关的独特基因表达. 这些发现揭示了常见的自身免疫性疾病途径和潜在的新的SSc治疗目标.
科学领域:
- 免疫学 免疫学 免疫学
- 基因组学就是基因组学.
- 自免疫性疾病 自免疫性疾病
背景情况:
- 系统性硬化症 (SSc) 是一种与RA,SLE和pSS相比经常被忽视的自身免疫性疾病 (AD).
- 了解SSc的病原体需要分析其独特的分子和细胞形状.
研究的目的:
- 将SSc患者的转录形状和免疫细胞组成与其他ADS进行比较.
- 在自身免疫性疾病中识别SSc特定和共享的致病途径.
主要方法:
- 来自119名未接受治疗的患者 (SSc,RA,pSS,SLE) 和20名健康对照的RNA测序数据.
- 生物信息学分析以确定差异表达基因 (DEG),生物功能和免疫细胞概况.
主要成果:
- 在SSc中发现了1,148个DEG,其中上调的基因与巨核细胞过程有关,下调的基因与中性粒细胞功能有关.
- 像ALDH1A1和MEGF9这样的DEG与中性质减退相关;与胚胎造血相关的高调节TFs.
- 在AD中常见的途径,特别是巨核细胞增殖;独特的SSc基因 (MEGF9,MMP8,KRT) 表明在中性粒细胞功能,皮肤完整性和纤维化中的作用.
结论:
- 失调的基因表达 (KRT,MMP8) 和增加的巨核细胞被识别在SSc中,与其他ADs共享模式.
- 这些发现为SSc的病原性提供了新的见解.
- 为SSc治疗提出了潜在的新治疗点.
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