Viral competition assay to assess the role of HIV-1 proteins in immune evasion.

Viral competition assay to assess the role of HIV-1 proteins in immune evasion.
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DOI:
10.1016/j.xpro.2022.102025
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发表时间:
2023-03-17
期刊:
影响因子:
--
通讯作者:
Palmer, Sarah
Palmer, Sarah
中科院分区:
其他
文献类型:
--
作者:
Duette, Gabriel;Cronin, Samantha;Kelleher, Anthony D.;Palmer, Sarah

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CD8 + T淋巴细胞能够识别并清除被病毒感染的细胞。然而,人类免疫缺陷病毒(HIV - 1)已经进化出逃避CD8 + T细胞介导的清除作用的机制。在此,我们描述一种评估HIV - 1蛋白Nef在免疫逃逸中作用的实验方案。病毒竞争试验显示,无法表达Nef的HIV - 1感染细胞会被优先杀伤。该方法可进一步用于研究参与免疫逃逸的HIV - 1蛋白以及编码细胞毒性T淋巴细胞逃逸突变的病毒变体。 关于本实验方案使用及实施的完整细节,请参考Duette等人(2022年)的研究。 病毒竞争试验揭示病毒蛋白Nef在免疫逃逸中的作用 从基因组DNA到可用于测序的文库大约只需一天时间 进行病毒竞争试验所需的外周血单个核细胞(PBMCs)少于1×10⁷个 出版方声明:进行任何实验方案都需要遵循当地机构关于实验室安全和伦理的指导方针。 CD8 + T淋巴细胞能够识别并清除被病毒感染的细胞。然而,人类免疫缺陷病毒(HIV - 1)已经进化出逃避CD8 + T细胞介导的清除作用的机制。在此,我们描述一种评估HIV - 1蛋白Nef在免疫逃逸中作用的实验方案。病毒竞争试验显示,无法表达Nef的HIV - 1感染细胞会被优先杀伤。该方法可进一步用于研究参与免疫逃逸的HIV - 1蛋白以及编码细胞毒性T淋巴细胞逃逸突变的病毒变体。
CD8+ T lymphocytes can recognize and eliminate cells infected by viruses. However, the human immunodeficiency virus (HIV-1) has developed mechanisms to evade CD8+ T-cell-mediated clearance. Here, we describe a protocol to assess the role of the HIV-1 protein Nef in immune evasion. The viral competition assay reveals the preferential killing of HIV-1-infected cells unable to express Nef. This methodology can be extended to study HIV-1 proteins involved in immune evasion and viral variants encoding cytotoxic T lymphocyte escape mutations. For complete details on the use and execution of this protocol, please refer to Duette et al. (2022). The viral competition assay reveals the role of the viral protein Nef in immune escape From genomic DNA to sequencing-ready libraries in approximately one day Less than 1 × 107 PBMCs are required to perform the viral competition assay Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics. CD8+ T lymphocytes can recognize and eliminate cells infected by viruses. However, the human immunodeficiency virus (HIV-1) has developed mechanisms to evade CD8+ T-cell-mediated clearance. Here, we describe a protocol to assess the role of the HIV-1 protein Nef in immune evasion. The viral competition assay reveals the preferential killing of HIV-1-infected cells unable to express Nef. This methodology can be extended to study HIV-1 proteins involved in immune evasion and viral variants encoding cytotoxic T lymphocyte escape mutations.
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