CD7激活调节系统性硬化症中细胞毒性驱动的病理,产生选择性细胞枯竭的目标
Theodoros Ioannis Papadimitriou1,2, Prashant Singh3, Arjan van Caam1
1Department of Rheumatology, Radboudumc, Nijmegen, The Netherlands.
Annals of the rheumatic diseases
|December 20, 2023
概括
系统性硬化症 (SSc) 涉及增加的细胞毒性T细胞和NK细胞表达CD7,驱动疾病病理. 向CD7为这种自身免疫性疾病提供了一种新的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
- 自免疫性疾病 自免疫性疾病
背景情况:
- 细胞毒性T细胞和自然杀手 (NK) 细胞对免疫至关重要,但它们在全身性硬化症 (SSc) 中的作用尚不清楚.
- 这些效应细胞通过激活和抑制受体进行调节,在全身性自身免疫性疾病中,这种机制不太明确.
研究的目的:
- 研究细胞毒性T细胞和NK细胞在全身性硬化症 (SSc) 中的调节和作用.
- 通过检查这些免疫细胞的功能来确定SSc的潜在治疗点.
主要方法:
- 从165名SSc患者和80名健康对照患者的皮肤和血液的ex vivo分析,使用单细胞转录和流细胞计.
- 功能性测试评估共刺激分子效应和分析用抗CD3/CD7免疫毒素治疗的患者.
主要成果:
- 在SSc皮肤中,T细胞和NK细胞增加,共刺激分子CD7的表达增加,特别是在严重和最近发病的疾病中.
- CD7表达与细胞毒性,促炎性和益纤维蛋白基因相关,调节细胞活性和纤维细胞功能.
- CD7+细胞的消耗减少了细胞毒性诱导的纤维细胞收缩和抑制了亲纤维细胞表型;抗CD3/CD7治疗在一名患者中稳定了疾病.
结论:
- 辅助刺激分子,特别是CD7,是SSc.等系统性自身免疫疾病中细胞毒性的关键调节者.
- CD7代表了一种新的治疗点,用于SSc.中的病原性免疫细胞的选择性消耗.
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