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HIV-1病毒感染性产出的高通量高内涵定量分析

High-throughput High Content Quantification of HIV-1 Viral Infectious Output.

作者信息

LuPone Teresa, Brantly Alexis, Oteju Oluwatofunmi, Matt Stephanie M, Runner Kaitlyn, Nickoloff-Bybel Emily, Nonnemacher Micheal, Gaskill Peter J

机构信息

Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA 19102.

Center for Molecular Virology and Translational Neuroscience, Drexel University College of Medicine, Philadelphia, PA 19102.

出版信息

bioRxiv. 2025 Jul 1:2025.06.28.662157. doi: 10.1101/2025.06.28.662157.

Abstract

Infection with human immunodeficiency virus (HIV-1) remains a global health issue and still drives the development of significant pathology and various comorbidities. Antiretroviral therapy (ART) can effectively suppress viral replication but is often initiated months or years after initial infection, leaving a substantial period in which viral replication progresses unchecked. While ART suppresses HIV-1 replication, it does not prohibit the development of HIV-1-associated comorbidities, highlighting a lack of understanding in the connection between replication and HIV-1-associated pathogeneses. Thus, it is critical to better define HIV-1 replication dynamics to more effectively target different stages of the viral replication cycle in distinct cell populations. Here, we show a high-content imaging reporter assay that uses modified human osteosarcoma cells expressing HIV-1 receptors (GHOST cells) which fluoresce in response to HIV-1 infection. These cells have been previously used to assess HIV-1 infectivity and tropism, but this modified assay enables rapid evaluation of large numbers of samples with consistency and replicability, while also easily integrating into existing experimental pipelines that analyze p24 secretion in collected supernatants. This also allows for direct correlation between infectivity and p24 secretion, resulting in a deeper interrogation and more robust understanding of HIV-1 infection kinetics.

摘要

感染人类免疫缺陷病毒(HIV-1)仍然是一个全球健康问题,并且仍然推动着严重病理学和各种合并症的发展。抗逆转录病毒疗法(ART)可以有效抑制病毒复制,但通常在初次感染数月或数年之后才开始使用,在此期间病毒复制不受控制地持续进行。虽然ART可以抑制HIV-1复制,但并不能阻止HIV-1相关合并症的发展,这凸显了我们对病毒复制与HIV-1相关发病机制之间联系的认识不足。因此,更准确地定义HIV-1复制动态对于更有效地靶向不同细胞群体中病毒复制周期的不同阶段至关重要。在此,我们展示了一种高内涵成像报告基因检测方法,该方法使用表达HIV-1受体的修饰人骨肉瘤细胞(GHOST细胞),这些细胞在受到HIV-1感染时会发出荧光。这些细胞此前已被用于评估HIV-1的感染性和嗜性,但这种改进后的检测方法能够以一致性和可重复性快速评估大量样本,同时还能轻松整合到分析收集上清液中p24分泌的现有实验流程中。这也使得感染性与p24分泌之间能够直接关联,从而更深入地探究并更全面地理解HIV-1感染动力学。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3ad6/12236775/2bf22b4b77fa/nihpp-2025.06.28.662157v1-f0001.jpg

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