title: Graded cytopathogenicity of the human immunodeficiency virus (HIV) in the course of HIV infection.
abstract: To determine whether the biological variability of HIV-1 has any clinical significance, the highly variable cytopathogenicity of 153 HIV-1 strains, isolated from 119 hemophiliacs, was related to the number of CD4+ lymphocytes present in the patient's blood at the time of virus isolation. It was shown that the cytopathogenicity of the HIV-1 isolates was inversely correlated with the number of CD4+ lymphocytes. The highest CD4+ cell number were observed in 34 latently infected patients characterized by HIV seropositivity, failure of virus isolation, and detection of viral DNA by the polymerase chain reaction. Cytopathogenicity of the HIV-1 isolates was a reliable prognostic marker and correlated well with other less-sensitive prognostic parameters, including the detection of infectious virus and p24 antigen in the plasma, and the decline of p24 antibody in the serum. The results suggest that the viral isolates - if not subjected to extensive passage - represent in vivo variants selected from a heterogeneous viral population according to the particular immunological conditions of the host.
authors.affiliation: Institute of Medical Microbiology and Immunology, University of Bonn, Federal Republic of Germany.
authors.forename: K E
authors.initials: KE
authors.lastname: Schneweis
authors.forename: J P
authors.initials: JP
authors.lastname: Kleim
authors.forename: E
authors.initials: E
authors.lastname: Bailly
authors.forename: D
authors.initials: D
authors.lastname: Niese
authors.forename: N
authors.initials: N
authors.lastname: Wagner
authors.forename: H H
authors.initials: HH
authors.lastname: Brackmann
mesh_terms: D001483:Base Sequence; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D003588:Cytopathogenic Effect, Viral; D005455:Fluorescent Antibody Technique; D015683:Gene Products, gag / Q000276:immunology; D015483:HIV Antibodies / Q000097:blood / Q000276:immunology; D016655:HIV Core Protein p24; D015658:HIV Infections / Q000150:complications / Q000276:immunology / Q000382:microbiology*; D015497:HIV-1 / Q000302:isolation & purification / Q000472:pathogenicity*; D006467:Hemophilia A / Q000150:complications; D006801:Humans; D015151:Immunoblotting; D007958:Leukocyte Count; D008969:Molecular Sequence Data; D015345:Oligonucleotide Probes; D016133:Polymerase Chain Reaction; D011379:Prognosis; D014758:Viral Core Proteins / Q000276:immunology; D014774:Virulence
chemical_list: D015683:Gene Products, gag; D015483:HIV Antibodies; D016655:HIV Core Protein p24; D015345:Oligonucleotide Probes; D014758:Viral Core Proteins