感染细胞上的艾滋病毒诱导的基甘促进了免疫逃脱从髓状细胞介导的杀戮
Shalini Singh1, S M Shamsul Islam1, Rui Liu2
1Northwestern University, Chicago, IL, USA.
bioRxiv : the preprint server for biology
|March 10, 2025
概括
感染艾滋病毒的细胞使用西阿洛甘来逃避免疫细胞. 一种针对这些西亚甘-西格莱克相互作用的新型抗体疗法可以增强免疫系统.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 葡萄糖生物学 葡萄糖生物学
背景情况:
- 病理细胞表达与Siglecs相互作用的sialoglycans,Siglecs是髓状细胞上的免疫检查点受体.
- 这种相互作用抑制了髓状细胞的细胞毒性功能,阻碍了免疫监测.
- 艾滋病毒感染改变了细胞糖化,增加了参与Siglecs的sialoglycan连接体.
研究的目的:
- 为了研究HIV诱导的糖表达如何促进髓状细胞的免疫逃避.
- 为了评估破坏艾滋病毒清除sialoglycan-Siglec相互作用的治疗潜力.
主要方法:
- 对艾滋病毒感染细胞上糖表达的分析.
- 评估Siglec对单细胞和中性粒细胞的作用.
- 在体外使用10-1074-Sia (HIV特异性抗体与化酶结合) 的自身测定.
- 在HIV感染的人类化小鼠接受10-1074-Sia.治疗的体内研究.
主要成果:
- 艾滋病毒感染上调Siglecs-3, -7和 -9.的特定西亚甘配体.
- 这些配体损害了HIV感染细胞的髓状细胞向.
- 10-1074-Sia治疗显著增强了单细胞和中性粒细胞介导的HIV感染细胞的杀死.
- 在体内,10-1074-Sia降低了HIV感染的人性化小鼠的病毒载量和炎症.
结论:
- 艾滋病毒采用一种新的免疫规避策略,通过调节sialoglycans来激活Siglecs在髓状细胞上.
- 针对10-1074-Sia与sialoglycan-Siglec相互作用是一个有前途的治疗方法.
- 这一策略增强了HIV感染细胞的免疫清除,并减少了病毒负担和炎症.
关键词:
细胞毒性 细胞毒性艾滋病病毒 艾滋病病毒 艾滋病病毒酸是酸的一种.化酸是一种化物.西格莱克-3是什么意思锡格莱克-7 号西格莱克-9号bNAbs 的意思就是bNAbs.单细胞 (Monocytes) 是一种单细胞.更多相关视频
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