PMID- 1851861 OWN - NLM STAT- MEDLINE DCOM- 19910626 LR - 20200724 IS - 0022-538X (Print) IS - 1098-5514 (Electronic) IS - 0022-538X (Linking) VI - 65 IP - 6 DP - 1991 Jun TI - Transactivation of the human immunodeficiency virus promoter by human herpesvirus 6 (HHV-6) strains GS and Z-29 in primary human T lymphocytes and identification of transactivating HHV-6(GS) gene fragments. PG - 2895-902 AB - Human herpesvirus 6 (HHV-6) can activate the human immunodeficiency virus (HIV) promoter and accelerate cytopathic effects in HIV-infected human T cells. This study examines the regions of the HIV promoter required for HHV-6 transactivation in a heterogeneous population of primary human T lymphocytes with or without antigenic stimulation. Two different strains of HHV-6, GS and Z29, transactivated the HIV promoter. The GS strain transactivated the promoter in both stimulated and resting T cells, while the Z29 strain increased HIV promoter activity only in stimulated T cells. Three DNA clones containing HHV-6(GS) genomic fragments transactivated the HIV promoter in cotransfected T cells. A 21.4-kb DNA clone, pZVB70, showed the highest transactivating ability, while two other DNA fragments, pZVB10 (6.2 kb) and pZVH14 (8.7 kb), showed lower activity. One of these clones, pZVH14, activated the HIV promoter construct containing a mutation in the NF kappa B site. However, this mutated NF kappa B promoter was not transactivated during HHV-6(GS) infection or after cotransfection with pZVB70 or pZVB10. These data indicate that the NF kappa B sites of the HIV promoter are essential for its transactivation during HHV-6(GS) infection. By increasing HIV promoter activity in primary T lymphocytes, HHV-6 may consequently increase HIV replication, leading to an increase in the cytopathic effect on coinfected human T cells. FAU - Horvat, R T AU - Horvat RT AD - Department of Microbiology, University of Kansas, Lawrence 66045. FAU - Wood, C AU - Wood C FAU - Josephs, S F AU - Josephs SF FAU - Balachandran, N AU - Balachandran N LA - eng GR - AI 24115/AI/NIAID NIH HHS/United States GR - AI 24224/AI/NIAID NIH HHS/United States GR - AI30355/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Virol JT - Journal of virology JID - 0113724 RN - 0 (DNA, Viral) RN - 0 (NF-kappa B) RN - EC 2.3.1.28 (Chloramphenicol O-Acetyltransferase) SB - IM MH - Base Sequence MH - Cells, Cultured MH - Chloramphenicol O-Acetyltransferase/metabolism MH - Cytopathogenic Effect, Viral MH - DNA, Viral/chemistry MH - Enhancer Elements, Genetic MH - *Gene Expression Regulation, Viral MH - HIV/*genetics/growth & development MH - HIV Long Terminal Repeat MH - Herpesviridae Infections/genetics MH - Herpesvirus 6, Human/*genetics MH - Humans MH - Molecular Sequence Data MH - NF-kappa B/genetics MH - *Promoter Regions, Genetic MH - T-Lymphocytes/*microbiology MH - Transfection MH - Virus Replication PMC - PMC240920 EDAT- 1991/06/01 00:00 MHDA- 1991/06/01 00:01 PMCR- 1991/06/01 CRDT- 1991/06/01 00:00 PHST- 1991/06/01 00:00 [pubmed] PHST- 1991/06/01 00:01 [medline] PHST- 1991/06/01 00:00 [entrez] PHST- 1991/06/01 00:00 [pmc-release] AID - 10.1128/JVI.65.6.2895-2902.1991 [doi] PST - ppublish SO - J Virol. 1991 Jun;65(6):2895-902. doi: 10.1128/JVI.65.6.2895-2902.1991.