title: HIV Interaction With Human Host: HIV-2 As a Model of a Less Virulent Infection.
abstract: HIV-1 and HIV-2 are the causal agents of AIDS. While similar in many ways, a significant amount of data suggests that HIV-2 is less virulent than HIV-1. In fact, HIV-2 infection is characterized by a longer asymptomatic stage and lower transmission rate, and the majority of HIV-2-infected patients can be classified as long-term non-progressors or elite controllers. The mechanisms underlying the ability of human host to naturally control HIV-2 infection are far from being completely understood. The identification of the differences between HIV-1 and HIV-2 interactions with human host cells could provide important insights into several aspects of retroviral pathogenesis that remain elusive, with significant implications for HIV vaccine development and therapy. In this review, we delve into some of the differences that notably distinguish HIV-2 from HIV-1, highlighting possible consequences in the pathogenesis and natural history of both infections.
authors.affiliation: Host-Pathogen Interaction Unit, Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal; and Instituto de Medicina Molecular (IMM), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
authors.forename: José Miguel
authors.initials: JM
authors.lastname: Azevedo-Pereira
authors.affiliation: Host-Pathogen Interaction Unit, Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal; and Instituto de Medicina Molecular (IMM), Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
authors.forename: Quirina
authors.initials: Q
authors.lastname: Santos-Costa
mesh_terms: D016915:AIDS Vaccines; D058070:Asymptomatic Diseases; D015658:HIV Infections / Q000276:immunology / Q000821:virology*; D015497:HIV-1 / Q000276:immunology / Q000472:pathogenicity*; D015498:HIV-2 / Q000276:immunology / Q000472:pathogenicity*; D054884:Host-Pathogen Interactions; D006801:Humans; D014774:Virulence
chemical_list: D016915:AIDS Vaccines