Document 0781 DOCN M9620781 TI Transfer of HIV-1-specific cytotoxic T lymphocytes to an AIDS patient leads to selection for mutant HIV variants and subsequent disease progression [see comments] DT 9602 AU Koenig S; Conley AJ; Brewah YA; Jones GM; Leath S; Boots LJ; Davey V; Pantaleo G; Demarest JF; Carter C; et al; MedImmune, Inc., Gaithersburg, Maryland 20878, USA. SO Nat Med. 1995 Apr;1(4):330-6. Unique Identifier : AIDSLINE MED/96071442 CM Comment in: Nat Med 1995 Apr;1(4):304-5 AB An HIV-1-seropositive volunteer was infused with an expanded autologous cytotoxic T lymphocyte (CTL) clone directed against the HIV-1 nef protein. This clone was adoptively transferred to determine whether supplementing CTL activity could reduce viral load or improve clinical course. Unexpectedly, infusion was followed by a decline in circulating CD4+ T cells and a rise in viral load. Some of the HIV isolates obtained from the plasma or CD4+ cells of the patient were lacking the nef epitope. These results suggest that active CTL selection of viral variants could contribute to the pathogenesis of AIDS and that clinical progression can occur despite high levels of circulating HIV-1-specific CTLs. DE Acquired Immunodeficiency Syndrome/IMMUNOLOGY/PHYSIOPATHOLOGY/ *THERAPY Amino Acid Sequence Base Sequence CD4 Lymphocyte Count CD4-Positive T-Lymphocytes/IMMUNOLOGY CD8-Positive T-Lymphocytes/IMMUNOLOGY Disease Progression DNA Primers/CHEMISTRY DNA, Viral/ANALYSIS Gene Amplification Gene Products, nef/GENETICS/IMMUNOLOGY Human HIV Antibodies/ANALYSIS HIV Core Protein p24/IMMUNOLOGY HIV Seropositivity/IMMUNOLOGY/PHYSIOPATHOLOGY/THERAPY HIV-1/*GENETICS/*IMMUNOLOGY/PHYSIOLOGY *Immunotherapy, Adoptive Molecular Sequence Data Mutation Nucleic Acid Hybridization T-Lymphocytes, Cytotoxic/*IMMUNOLOGY Virus Replication JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).