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The recombinant plasmid pBHIV1 carrying the long terminal repeat (LTR) of the human immunodeficiency virus 1 (HIV-1), linked to the chloramphenicol acetyl transferase (CAT) gene, was introduced into human and rat fibroblasts. Stable transfectants resistant to geneticin expressed CAT activity from the HIV-1 LTR. It was found that the cytotoxic drug cis-diammine(1,1-cyclobutanedicarboxylato)platinum(II) (carboplatin) at concentrations from 1 x 10(-6) to 1 x 10(-4) M does not stimulate the expression of CAT from the HIV-1 LTR. These results differ from previous studies with the related drug cis-diamminedichloroplatinum(II) which showed stimulation of gene expression from the HIV-1 LTR and suggest that carboplatin could be used in the treatment of cancer patients with Acquired Immune Deficiency Syndrome.

Original publication




Journal article


Biochem Pharmacol

Publication Date





650 - 654


Acquired Immunodeficiency Syndrome, Animals, Carboplatin, Cell Division, Chloramphenicol O-Acetyltransferase, Cisplatin, Fibroblasts, Gene Expression Regulation, Enzymologic, HIV Long Terminal Repeat, Humans, Rats, Transfection