在感染SHIV的子中,抗体和TLR7激动剂延缓病毒反弹
Erica N Borducchi1, Jinyan Liu1, Joseph P Nkolola1
1Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
Nature
|October 5, 2018
概括
这项研究探讨了在抗逆转录病毒治疗 (ART) 期间向HIV-1病毒储存. 将广泛中和抗体 (bNAbs) 与免疫刺激剂相结合,延迟了子的病毒反弹,这表明一种潜在的HIV治疗策略.
科学领域:
- 免疫学
- 病毒学
- 传染性疾病
背景情况:
- 潜伏的HIV-1病毒储存器是实现治愈的主要障碍.
- 广泛中和抗体 (bNAbs) 显示抗病毒活性,但它们在ART期间向储体的作用尚不清楚.
研究的目的:
- 在抗逆转录病毒治疗 (ART) 期间,研究bNAbs是否可以向HIV-1储存器.
- 评估bNAb和免疫刺激剂的组合,以定位储体.
主要方法:
- 在SHIV-SF162P3感染的 rhesus中,在ART期间使用bNAb PGT121和TLR7激动剂韦萨托利莫德 (GS-9620).
- 在停止ART治疗后进行病毒反弹评估.
- 在小组动物中进行采用转移和CD8耗尽研究.
主要成果:
- 在ART期间联合使用PGT121和GS-9620可在ART停止后延迟病毒反弹.
- 在没有反弹的动物中,采用转移和CD8耗尽的研究没有检测到病毒.
- 这表明病毒库是有效的目标.
结论:
- 结合bNAbs与先天免疫刺激可能是一个可行的策略来准潜伏的HIV-1储存器.
- 这种方法有可能开发一种对HIV-1感染的功能性治疗方法.
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