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The Proviral Reservoirs of Human Immunodeficiency Virus (HIV) Infection.
Pathogens
December 2024
State Research Center of Virology and Biotechnology "Vector", Koltsovo 630559, Russia.
Human Immunodeficiency Virus (HIV) proviral reservoirs are cells that harbor integrated HIV proviral DNA within their nuclear genomes. These cells form a heterogeneous group, represented by peripheral blood mononuclear cells (PBMCs), tissue-resident lymphoid and monocytic cells, and glial cells of the central nervous system. The importance of studying the properties of proviral reservoirs is connected with the inaccessibility of integrated HIV proviral DNA for modern anti-retroviral therapies (ARTs) that block virus reproduction.
View Article and Find Full Text PDFPersistent elite controllers as the key model to identify permanent HIV remission.
Curr Opin HIV AIDS
December 2024
Institute of Biomedicine of Seville (IBiS), Virgen del Rocio University Hospital, Spanish National Research Council (CSIC), University of Seville, Clinical Unit of Infectious Diseases, Microbiology and Parasitology, Seville, Spain.
Purpose Of Review: To summarize the heterogeneity in the elite controllers population with the aim to identify a compatible profile with a persistent HIV remission, making distinction between persistent elite controllers, people with HIV (PWHIV) who permanently maintain virological control in the absence of antiretroviral treatment (ART), and transient elite controllers, PWHIV who eventually lose virological control. For this purpose, it is important to consider the mechanisms and biomarkers that have previously been associated with the maintenance and loss of the natural virological control.
Recent Findings: Transient elite controllers, before losing virological control, exhibit a distinct metabolomic, proteomic, microRNAs (miRNA), immunological and virological profile compared to persistent elite controllers.
Deep analysis of the major histocompatibility complex genetic associations using covariate analysis and haploblocks unravels new mechanisms for the molecular etiology of Elite Control in AIDS.
BMC Immunol
January 2025
Laboratoire Génomique, Bioinformatique, et Chimie Moléculaire, Conservatoire National des Arts et Métiers, 2 rue Conté 75003, Paris, EA7528, France.
Introduction: We have reanalyzed the genomic data from the International Collaboration for the Genomics of HIV (ICGH), focusing on HIV-1 Elite Controllers (EC).
Methods: A genome-wide association study (GWAS) was performed, comparing 543 HIV-1 EC individuals with 3,272 uninfected controls (CTR) of European ancestry. 8 million single nucleotide polymorphisms (SNPs) and HLA class I and class II gene alleles were imputed to compare EC and CTR.
The role of genetic diversity, epigenetic regulation, and sex-based differences in HIV cure research: a comprehensive review.
Epigenetics Chromatin
January 2025
Department of Biomedical Sciences, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Penang, Malaysia.
Despite significant advances in HIV treatment, a definitive cure remains elusive. The first-in-human clinical trial of Excision BioTherapeutics' CRISPR-based HIV cure, EBT-101, demonstrated safety but failed to prevent viral rebound. These outcomes may result from the interplay of several factors.
View Article and Find Full Text PDFModulation of CCR5 expression and R5 HIV-1 infection in primary macrophages exposed to sera from HESN, LTNP, and chronically HIV-1 infected people with or without natural antibodies to CCR5.
Virus Res
December 2024
National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy. Electronic address:
CCR5 is the main co-receptor for HIV-1 cell entry and it plays key roles in HIV-1 mucosal transmission. Natural anti-CCR5 antibodies were found in HIV-1-exposed seronegative and long-term non-progressor subjects, suggesting a role in controlling viral replication in vivo. We assessed the effect of sera containing or not natural anti-CCR5 antibodies, on membrane CCR5 level and HIV-1 infection in primary macrophages.
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