Crucial Role of Central Nervous System as a Viral Anatomical Compartment for HIV-1 Infection

The chronic infection established by the human immunodeficiency virus 1 (HIV-1) produces serious CD4+ T cell immunodeficiency despite the decrease in HIV-1 ribonucleic acid (RNA) levels and the raised life expectancy of people living with HIV-1 (PLWH) through treatment with combined antiretroviral t...

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Main Authors: Ana Borrajo, Valentina Svicher, Romina Salpini, Michele Pellegrino, Stefano Aquaro
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/9/12/2537
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author Ana Borrajo
Valentina Svicher
Romina Salpini
Michele Pellegrino
Stefano Aquaro
author_facet Ana Borrajo
Valentina Svicher
Romina Salpini
Michele Pellegrino
Stefano Aquaro
author_sort Ana Borrajo
collection DOAJ
description The chronic infection established by the human immunodeficiency virus 1 (HIV-1) produces serious CD4+ T cell immunodeficiency despite the decrease in HIV-1 ribonucleic acid (RNA) levels and the raised life expectancy of people living with HIV-1 (PLWH) through treatment with combined antiretroviral therapies (cART). HIV-1 enters the central nervous system (CNS), where perivascular macrophages and microglia are infected. Serious neurodegenerative symptoms related to HIV-associated neurocognitive disorders (HAND) are produced by infection of the CNS. Despite advances in the treatment of this infection, HAND significantly contribute to morbidity and mortality globally. The pathogenesis and the role of inflammation in HAND are still incompletely understood. Principally, growing evidence shows that the CNS is an anatomical reservoir for viral infection and replication, and that its compartmentalization can trigger the evolution of neurological damage and thus make virus eradication more difficult. In this review, important concepts for understanding HAND and neuropathogenesis as well as the viral proteins involved in the CNS as an anatomical reservoir for HIV infection are discussed. In addition, an overview of the recent advancements towards therapeutic strategies for the treatment of HAND is presented. Further neurological research is needed to address neurodegenerative difficulties in people living with HIV, specifically regarding CNS viral reservoirs and their effects on eradication.
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spelling doaj.art-354729ae956c41c1a60511bb1a88ecd92023-11-23T09:39:29ZengMDPI AGMicroorganisms2076-26072021-12-01912253710.3390/microorganisms9122537Crucial Role of Central Nervous System as a Viral Anatomical Compartment for HIV-1 InfectionAna Borrajo0Valentina Svicher1Romina Salpini2Michele Pellegrino3Stefano Aquaro4Department of Experimental Medicine, University of Rome Tor Vergata, 00133 Rome, ItalyDepartment of Experimental Medicine, University of Rome Tor Vergata, 00133 Rome, ItalyDepartment of Experimental Medicine, University of Rome Tor Vergata, 00133 Rome, ItalyDepartment of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, ItalyDepartment of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, ItalyThe chronic infection established by the human immunodeficiency virus 1 (HIV-1) produces serious CD4+ T cell immunodeficiency despite the decrease in HIV-1 ribonucleic acid (RNA) levels and the raised life expectancy of people living with HIV-1 (PLWH) through treatment with combined antiretroviral therapies (cART). HIV-1 enters the central nervous system (CNS), where perivascular macrophages and microglia are infected. Serious neurodegenerative symptoms related to HIV-associated neurocognitive disorders (HAND) are produced by infection of the CNS. Despite advances in the treatment of this infection, HAND significantly contribute to morbidity and mortality globally. The pathogenesis and the role of inflammation in HAND are still incompletely understood. Principally, growing evidence shows that the CNS is an anatomical reservoir for viral infection and replication, and that its compartmentalization can trigger the evolution of neurological damage and thus make virus eradication more difficult. In this review, important concepts for understanding HAND and neuropathogenesis as well as the viral proteins involved in the CNS as an anatomical reservoir for HIV infection are discussed. In addition, an overview of the recent advancements towards therapeutic strategies for the treatment of HAND is presented. Further neurological research is needed to address neurodegenerative difficulties in people living with HIV, specifically regarding CNS viral reservoirs and their effects on eradication.https://www.mdpi.com/2076-2607/9/12/2537human immunodeficiency virusHANDreservoircentral nervous system
spellingShingle Ana Borrajo
Valentina Svicher
Romina Salpini
Michele Pellegrino
Stefano Aquaro
Crucial Role of Central Nervous System as a Viral Anatomical Compartment for HIV-1 Infection
Microorganisms
human immunodeficiency virus
HAND
reservoir
central nervous system
title Crucial Role of Central Nervous System as a Viral Anatomical Compartment for HIV-1 Infection
title_full Crucial Role of Central Nervous System as a Viral Anatomical Compartment for HIV-1 Infection
title_fullStr Crucial Role of Central Nervous System as a Viral Anatomical Compartment for HIV-1 Infection
title_full_unstemmed Crucial Role of Central Nervous System as a Viral Anatomical Compartment for HIV-1 Infection
title_short Crucial Role of Central Nervous System as a Viral Anatomical Compartment for HIV-1 Infection
title_sort crucial role of central nervous system as a viral anatomical compartment for hiv 1 infection
topic human immunodeficiency virus
HAND
reservoir
central nervous system
url https://www.mdpi.com/2076-2607/9/12/2537
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