title: Replication of herpes simplex virus type 1 in differentiated human promyelocytic HL-60 cells.
abstract: The capability of herpes simplex virus type 1 (HSV-1), strain Angelotti (ANG), to replicate in human promyelocytic HL-60 cells treated with 1,2-tetradecanoyl-phorbol-13-acetate (TPA) and dimethyl sulfoxide (DMSO) was examined. Virus titrations and infectious center assays revealed that HSV-1 ANG replicated in nontreated HL-60 cells and in HL-60 cells treated with TPA. An abortive infection was observed in DMSO-stimulated HL-60 cells. Viral DNA synthesis was detected in nontreated and TPA-treated cells, but not in DMSO-treated cells. Analysis of HSV-1 transcripts revealed that albeit the differences in pretreatment, HL-60 cells synthesized viral immediate-early (ICP4) and early (tk and pol) RNAs, whereas a late viral transcript (gC) was almost exclusively detected in nontreated and TPA-treated HL-60 cells. In line with these observations were the results obtained from studies on viral protein synthesis. The immediate-early protein ICP4 was found in all three cell types. Early (pol), delayed-early (gB), as well as late proteins (VP 5, gC) were identified in nontreated and TPA-treated cells, but only in reduced amounts in DMSO-treated cells. These data suggest a translational block of HSV replication in DMSO-treated HL-60 cells at the level of early gene expression.
authors.affiliation: Institute of Medical Virology, University of Heidelberg, Federal Republic of Germany.
authors.forename: C
authors.initials: C
authors.lastname: Pientong
authors.forename: K
authors.initials: K
authors.lastname: Weisshart
authors.forename: J E
authors.initials: JE
authors.lastname: Kühn
authors.forename: C W
authors.initials: CW
authors.lastname: Knopf
authors.forename: R W
authors.initials: RW
authors.lastname: Braun
mesh_terms: D015152:Blotting, Northern; D015139:Blotting, Southern; D002460:Cell Line; D004261:DNA Replication; D004279:DNA, Viral / Q000096:biosynthesis; D004121:Dimethyl Sulfoxide / Q000494:pharmacology; D005786:Gene Expression Regulation; D006098:Granulocytes / Q000382:microbiology*; D006801:Humans; D015151:Immunoblotting; D011233:Precipitin Tests; D012367:RNA, Viral / Q000096:biosynthesis; D018139:Simplexvirus / Q000235:genetics / Q000502:physiology*; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology; D014764:Viral Proteins / Q000096:biosynthesis; D014779:Virus Replication
chemical_list: D004279:DNA, Viral; D012367:RNA, Viral; D014764:Viral Proteins; D013755:Tetradecanoylphorbol Acetate; D004121:Dimethyl Sulfoxide