早期感染中HIV与自噬的相互作用
The Interplay of HIV and Autophagy in Early Infection.
作者信息
Cabrera-Rodríguez Romina, Pérez-Yanes Silvia, Estévez-Herrera Judith, Márquez-Arce Daniel, Cabrera Cecilia, Espert Lucile, Blanco Julià, Valenzuela-Fernández Agustín
机构信息
Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, e IUETSPC de la Universidad de La Laguna, Campus de Ofra s/n, Tenerife, Spain.
AIDS Research Institute IrsiCaixa, Institut de Recerca en Ciències de la Salut Germans Trias i Pujol (IGTP), Barcelona, Spain.
出版信息
Front Microbiol. 2021 Apr 28;12:661446. doi: 10.3389/fmicb.2021.661446. eCollection 2021.
HIV/AIDS is still a global threat despite the notable efforts made by the scientific and health communities to understand viral infection, to design new drugs or to improve existing ones, as well as to develop advanced therapies and vaccine designs for functional cure and viral eradication. The identification and analysis of HIV-1 positive individuals that naturally control viral replication in the absence of antiretroviral treatment has provided clues about cellular processes that could interact with viral proteins and RNA and define subsequent viral replication and clinical progression. This is the case of autophagy, a degradative process that not only maintains cell homeostasis by recycling misfolded/old cellular elements to obtain nutrients, but is also relevant in the innate and adaptive immunity against viruses, such as HIV-1. Several studies suggest that early steps of HIV-1 infection, such as virus binding to CD4 or membrane fusion, allow the virus to modulate autophagy pathways preparing cells to be permissive for viral infection. Confirming this interplay, strategies based on autophagy modulation are able to inhibit early steps of HIV-1 infection. Moreover, autophagy dysregulation in late steps of the HIV-1 replication cycle may promote autophagic cell-death of CD4 T cells or control of HIV-1 latency, likely contributing to disease progression and HIV persistence in infected individuals. In this scenario, understanding the molecular mechanisms underlying HIV/autophagy interplay may contribute to the development of new strategies to control HIV-1 replication. Therefore, the aim of this review is to summarize the knowledge of the interplay between autophagy and the early events of HIV-1 infection, and how autophagy modulation could impair or benefit HIV-1 infection and persistence, impacting viral pathogenesis, immune control of viral replication, and clinical progression of HIV-1 infected patients.
尽管科学界和卫生界为了解病毒感染、设计新药或改进现有药物以及开发用于功能性治愈和病毒根除的先进疗法及疫苗设计做出了显著努力,但艾滋病毒/艾滋病仍然是一个全球威胁。对在未接受抗逆转录病毒治疗的情况下自然控制病毒复制的HIV-1阳性个体的鉴定和分析,为可能与病毒蛋白和RNA相互作用并确定随后病毒复制和临床进展的细胞过程提供了线索。自噬就是这样一种降解过程,它不仅通过回收错误折叠/陈旧的细胞成分以获取营养来维持细胞内稳态,而且在针对诸如HIV-1等病毒的固有免疫和适应性免疫中也具有相关性。多项研究表明,HIV-1感染的早期步骤,如病毒与CD4结合或膜融合,会使病毒调节自噬途径,使细胞易于发生病毒感染。证实这种相互作用的是,基于自噬调节的策略能够抑制HIV-1感染的早期步骤。此外,HIV-1复制周期后期的自噬失调可能会促进CD4 T细胞的自噬性细胞死亡或控制HIV-1潜伏,这可能会导致疾病进展以及HIV在感染个体中的持续存在。在这种情况下,了解HIV/自噬相互作用的分子机制可能有助于开发控制HIV-1复制的新策略。因此,本综述的目的是总结自噬与HIV-1感染早期事件之间相互作用的知识,以及自噬调节如何损害或有益于HIV-1感染和持续存在,从而影响病毒发病机制、病毒复制的免疫控制以及HIV-1感染患者的临床进展。