高剂量维生素D3对HIV-1储库的影响:一个试点随机对照试验
Matthew C Pitman1,2, Niamh Meagher3,4, David J Price3,4
1Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, 792 Elizabeth St, Melbourne, Victoria, 3000, Australia.
Journal of virus eradication
|September 27, 2023
概括
在24周的试验中,高剂量的维生素D3并没有立即减少HIV-1储备. 然而,在停止治疗12周后,观察到HIV-1 DNA的显著减少,以及免疫细胞的改善.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 内分泌学 在内分泌学.
背景情况:
- 终身抗逆转录病毒疗法 (ART) 是必要的HIV-1管理由于持久的潜伏病毒储存.
- CD4+ T细胞是HIV-1的关键储存体,它们的增殖有助于病毒的持久性.
- 维生素D3是一种基因调节剂,影响免疫细胞和肠道屏障功能,对HIV-1持续性有潜在影响.
研究的目的:
- 调查高剂量维生素D3在减少HIV-1存储库大小方面的有效性.
- 评估维生素D3对CD4+T细胞增殖和HIV-1感染者免疫参数的影响.
主要方法:
- 一项为期24周的随机化,安慰剂对照试验,涉及30名接受ART治疗的成年人.
- 参与者每天接受高剂量维生素D3 (10,000 IU) 或安慰剂.
- 主要终点是24周总HIV-1DNA的变化,治疗后12周的随访.
主要成果:
- 在24周的治疗期间,没有观察到总HIV-1DNA,集成HIV-1DNA,2-LTR循环或与细胞相关的HIV-1RNA的显着减少.
- 维生素D3显著增加了中央记忆中的CD4+和CD8+T细胞,并减少了衰老的CD8+T细胞和自然杀手细胞.
- 与安慰剂相比,在36周 (12周治疗后) 观察到HIV-1总DNA显著减少.
结论:
- 高剂量的维生素D3影响了T细胞分化,但在治疗期间对HIV-1储库产生了有限的直接影响.
- 在维生素D3停止后,观察到HIV-1 DNA的延迟减少,这表明潜在的长期效应.
- 需要进一步的研究,以优化维生素D3的剂量和持续持续的HIV-1储存库耗尽的持续时间.
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