title: Effect of azacytidine in SV40-infected BSC-1 cells.
abstract: 5-Azacytidine (5-AzaCR) reduced significantly the levels of ribosomal 28S and 18S RNAs in the cytoplasm of uninfected and simian virus 40 (SV40)-infected BSC-1 cells. The percent inhibition of ribosomal RNAs was correlated to both the dose of AzaCR and the time of exposure. In SV40-infected cultures treated with 200 microgram/ml AzaCR, a portion of the total cytoplasmic radioactivity was observed to sediment as 19S and 16S by sucrose gradient analysis. The 19S and 16S peaks represented in part the viral-specific RNA species. This result was due to the drastic reduction (70--75%) of ribosomal RNAs in the cytoplasm of infected cultures.
mesh_terms: D000818:Animals; D001374:Azacitidine / Q000494:pharmacology*; D002460:Cell Line; D000882:Haplorhini; D007668:Kidney; D012313:RNA / Q000378:metabolism*; D012333:RNA, Messenger / Q000378:metabolism; D012335:RNA, Ribosomal / Q000378:metabolism*; D012367:RNA, Viral / Q000378:metabolism; D013539:Simian virus 40 / Q000254:growth & development* / Q000378:metabolism
chemical_list: D012333:RNA, Messenger; D012335:RNA, Ribosomal; D012367:RNA, Viral; D012313:RNA; D001374:Azacitidine