cyclic-gmp has been researched along with selenazofurin* in 1 studies
1 other study(ies) available for cyclic-gmp and selenazofurin
Article | Year |
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Tiazofurin and selenazofurin induce depression of cGMP and phosphatidylinositol pathway in L1210 leukemia cells.
The synthetic nucleoside tiazofurin(2-beta-ribofuranosylthiazole-4-carboxyamide) and its selenium analog selenazofurin inhibited the growth of L1210 leukemia cell culture in a dose dependent manner with IC50 value of 2.0 and 0.2 Um respectively. The GTP/ATP ratio was diminished 4-6 fold as measured by HPLC, while IMP/ATP increased 6-8 fold. The decreased guanylate pools may explain the 30% reduction in cyclic GMP levels and GTPase activity measured after the treatment with the nucleosides. Inhibition of phospholipase C activity is suggested since diacylglycerol content, protein kinase C activity and phorbol ester binding of the membrane fraction were also reduced 20-40%. These results reveal a novel aspect in the action of these compounds which may play a role in their therapeutic action and selectivity. Topics: Adenosine Triphosphate; Animals; Antineoplastic Agents; Caenorhabditis elegans Proteins; Carrier Proteins; Cyclic GMP; Diglycerides; Guanosine Triphosphate; Inosine Monophosphate; Leukemia L1210; Mice; Organoselenium Compounds; Phorbol 12,13-Dibutyrate; Phosphates; Phosphatidylinositols; Protein Kinase C; Receptors, Drug; Ribavirin; Ribonucleosides; Selenium | 1989 |