在CD8+T细胞中激活STAT3突变与类风湿性关节炎的血清学阳性相关
Katharine B Moosic1,2,3, Thomas L Olson1,2, Mark Freijat4
1University of Virginia Cancer Center, University of Virginia School of Medicine, Charlottesville, VA, United States.
Frontiers in immunology
|November 5, 2024
概括
在类风湿性关节炎 (RA) 患者的CD8+细胞中发现了STAT3突变,与血清阳性相关. 这些发现表明,STAT3激活突变可能会导致一些个体的RA病变.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
- 血液学 血液学 血液学
背景情况:
- 类风湿性关节炎 (RA) 与大颗粒性淋巴细胞 (LGL) 白血病具有共同的疾病特征.
- CD8+ T细胞参与RA的发病.
- 身体激活STAT3突变在LGL白血病中很常见.
研究的目的:
- 为了调查RA患者CD8+T细胞中STAT3突变的存在.
- 为了确定STAT3突变是否与RA的临床特征相关.
主要方法:
- 收集了98名RA患者和9名健康对照者的血液样本和临床数据.
- 隔离的CD8+细胞DNA并使用滴滴数字PCR分析STAT3突变 (Y640F,D661Y,S614-G618).
- 补充了99个健康对照的对照数据,来自公共数据集.
主要成果:
- 在RA患者中,STAT3突变的发生率明显高于对照组 (Y640F p=0.0005,D661Y p=0.0005).
- 大多数突变是低变异基因频率 (VAF),但在31/98 (Y640F) 和17/98 (D661Y) 的RA患者中检测到.
- 具有STAT3突变的RA患者表现出较高的风湿因子 (RF) 和抗CCP阳性率 (分别为p=0.047和p=0.031).
结论:
- 在RA患者的CD8+T细胞中存在STAT3激活突变.
- 这些突变与RA中的血清阳性有关.
- 激活STAT3的突变可能会导致RA患者的一个子集的疾病发病.
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