Document 0070 DOCN M95B0070 TI Vesnarinone inhibits nucleoside and nucleobase transport. DT 9511 AU Kumakura T; Takase K; Terada N; Gelfand EW; Department of Pediatrics, National Jewish Center for Immunology; and Respiratory Medicine, Denver, CO 80206, USA. SO Life Sci. 1995 Jun 30;57(6):PL75-81. Unique Identifier : AIDSLINE MED/95349329 AB Vesnarinone is a novel synthetic oral inotropic agent that has been successfully used for treatment of patients with congestive heart failure. In addition to its cardiotonic activity, the drug has been proposed to have mild cytostatic and anti-HIV-1 effects. We have observed that vesnarinone profoundly inhibits radiolabeled thymidine and uridine incorporation into cells despite its modest inhibitory effect on DNA synthesis, RNA synthesis or cell proliferation. Here we demonstrate that vesnarinone inhibits both nucleoside and nucleobase transport in mammalian cells. This pharmacological action may be involved in some of its multiple biological effects. DE Adenine/METABOLISM Animal Biological Transport/DRUG EFFECTS Cell Line CHO Cells Hamsters Human Nucleosides/*METABOLISM Quinolines/*PHARMACOLOGY Support, Non-U.S. Gov't Thymidine/METABOLISM Uracil/METABOLISM Uridine/METABOLISM JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).