在cART下,CD24-Fc解决炎症并增强在HIV-1感染期间具有多功能性的抗HIVCD8T细胞
Guangming Li1,2, Jianping Ma2, Haisheng Yu2
1Institute of Human Virology, Departments of Pharmacology, Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
PLoS pathogens
|August 8, 2025
概括
在HIV-1感染的小鼠和人群中,CD24-Fc显著降低了炎症和免疫过活化. 这种疗法改善了T细胞功能和控制病毒反弹,为HIV-1并发症提供了有前途的治疗方法.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 药理学 药理学是指药理学的学科.
背景情况:
- 在联合抗逆转录病毒疗法 (cART) 期间,HIV-1储存器持续存在,导致慢性炎症和免疫激活.
- 这导致HIV-1 (PWH) 感染者的免疫复原不足,并增加了非艾滋病事件.
研究的目的:
- 评估CD24-Fc,一种抗炎融合蛋白,对慢性HIV-1感染的治疗效果.
- 在体内和体外评估CD24-Fc对炎症,免疫过活化和T细胞反应的影响.
主要方法:
- 在cART下利用了患有慢性HIV-1感染的人性化小鼠.
- 接受治疗的小鼠和来自PWH的外周血液单核细胞 (PBMC) 携带CD24-Fc.
- 评估了炎症,免疫细胞种群,T细胞功能和HIV-1病毒反弹.
主要成果:
- 在接受cART的HIV-1感染小鼠中,CD24-Fc治疗显著降低了炎症和免疫过活化.
- 改善了CD4 T细胞恢复,增加了功能性中央记忆T细胞,并增强了CXCR5+ CD8中央记忆T细胞 (TCM).
- 增加了HIV特异性T细胞多功能性,改善了病毒反弹的控制,并在停止cART时减少了病变发生.
结论:
- CD24-Fc在慢性HIV-1感染中显示出显著的抗炎和免疫调节作用.
- 融合蛋白增强了抗HIVT细胞的活性,并可能减轻HIV-1的致病性.
- CD24-Fc代表了一个有前途的治疗候选人,用于管理PWH的慢性炎症和相关疾病.
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