针对原发性免疫调节障碍的T细胞和自身抗体分析
Emily M Harris1, Sarah Chamseddine2, Anne Chu2,3
1Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA, USA.
medRxiv : the preprint server for health sciences
|March 11, 2024
概括
诊断原发性免疫调节障碍 (PIRD) 是一个挑战. 将T毛囊辅助细胞 (cTfh) 测量与自身抗体分析相结合,可以提高PIRD的诊断准确度,为这些复杂的疾病提供新的工具.
科学领域:
- 免疫学 免疫学 免疫学
- 这是一种自身免疫力.
- 诊断发展 诊断发展
背景情况:
- 初级免疫调节障碍 (PIRD) 往往缺乏特定的诊断标准,这在临床识别方面构成了挑战.
- 现有的PIRD表征工具有限,经常导致排除诊断.
- 在一些自身免疫性疾病中观察到高循环的T卵泡辅助细胞 (cTfh),但它们在PIRD诊断中的有用性尚未完全确定.
研究的目的:
- 通过整合自身免疫的细胞和血清标志物来开发PIRD的新型诊断方法.
- 评估PIRD患者中特定CD4+T细胞子集和自身抗体配置文件的诊断效用.
主要方法:
- 招募了101名患有PIRD的儿科患者和71名健康对照.
- 利用流细胞计量量化表达CXCR3和/或CCR6的CD4+CXCR5+T细胞,包括cTfh细胞 (CD4+CXCR5+PD1+).
- 测量IgG和IgA对1616蛋白抗原的自身抗体,使用患者和对照组子集中的微阵列.
主要成果:
- 在显著比例的PIRD患者中,观察到cTfh细胞和表达CXCR3/CCR6的CD4+CXCR5+T细胞的百分比增加.
- 与对照组相比,PIRD患者表现出较高的IgG和IgA自抗体的多样性和数量.
- 结合T细胞表型和自身抗体负担的综合方法在PIRD诊断中实现了71.4%的灵敏度和85%的特异性.
结论:
- 将CD4+T细胞表型与自身抗体分析结合在一起,为诊断PIRD提供了一个有前途的策略.
- 这种综合方法为识别PIRD提供了有价值的工具,特别是在缺乏明确临床诊断标准的情况下.
- 进一步的研究可以完善这种多生物标志物策略,以改善PIRD的表征和管理.
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