艾滋病毒 - 黑尔明斯同时感染和免疫检查点:南非癌症风险的影响
Botle Precious Damane1,2, Thanyani Victor Mulaudzi1, Sayed Shakeel Kader3
1Department of Surgery, Steve Biko Academic Hospital, University of Pretoria, Hatfield 0028, South Africa.
Viruses
|March 27, 2025
概括
南非的艾滋病毒和虫联合感染改变了免疫检查点分子,通过创造一种免疫抑制环境,可能增加癌症风险. 降低CD28的调节突显了慢性疾病中的免疫效率低下.
科学领域:
- 免疫学 免疫学 免疫学
- 传染性疾病 传染性疾病
- 在瘤学瘤学.
背景情况:
- 南非面临着高艾滋病毒流行率,经常与贫困地区的虫感染同时发生.
- 同时感染可能导致免疫相互作用,可能通过免疫检查点分子 (IC) 上调增强瘤发生.
- 大多数ICs在癌症中过度表达,与疾病进展相关.
研究的目的:
- 调查HIV-虫同时感染对共刺激性和共抑制性分子形状的影响.
- 评估具有并发感染的个体对抗瘤免疫力的潜在影响.
主要方法:
- 78名参与者的血清样本使用多重免疫调节分子试验进行了分析.
- 参与者被分为:未感染的对照组,感染艾滋病毒,感染虫和同时感染艾滋病毒和虫的组.
- 用多变量回归分析数据,调整了混因子,以未感染组为基线.
主要成果:
- 艾滋病毒感染个体的PD-1和TIM-3水平较高,CD28水平较低.
- 感染虫的个体的TIM-3水平较高.
- 同时感染HIV虫的个体表现出较高的PD-1和PD-L2水平. 所有感染群体都显示出显著的CD28下调.
结论:
- 艾滋病毒和虫同时感染显著改变免疫检查点标记,可能促进免疫抑制的微环境.
- 这种改变的免疫特征可能会阻碍抗癌免疫力,增加癌症风险.
- CD28下调表明慢性疾病中的免疫效率低下,强调需要有针对性的策略.
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