title: Tetrocarcins, novel antitumor antibiotics. II. Isolation, characterization and antitumor activity.
abstract: Novel antitumor antibiotics, tetrocarcin complex composed of three components (A, B and C) were isolated from the culture broth of Micromonospora chalcea KY11091 through various procedures. Tetrocarcins showed marked activity against experimental tumors such as mouse sarcoma 180 and mouse leukemia P388. Multiple injections showed better therapeutic effect against tumors. Mode of action of tetrocarcin A against Bacillus subtilis was found to be through the inhibition of RNA synthesis.
mesh_terms: D000617:Aminoglycosides; D000818:Animals; D000900:Anti-Bacterial Agents; D000903:Antibiotics, Antineoplastic / Q000302:isolation & purification* / Q000494:pharmacology; D001412:Bacillus subtilis / Q000378:metabolism; D001426:Bacterial Proteins / Q000096:biosynthesis; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004269:DNA, Bacterial / Q000096:biosynthesis; D006027:Glycosides / Q000302:isolation & purification / Q000494:pharmacology; D007928:Lethal Dose 50; D007941:Leukemia P388 / Q000188:drug therapy; D008297:Male; D051379:Mice; D012329:RNA, Bacterial / Q000096:biosynthesis; D012510:Sarcoma 180 / Q000188:drug therapy
chemical_list: D000617:Aminoglycosides; D000900:Anti-Bacterial Agents; D000903:Antibiotics, Antineoplastic; D001426:Bacterial Proteins; D004269:DNA, Bacterial; D006027:Glycosides; D012329:RNA, Bacterial; C025518:tetrocarcin A; C027075:tetrocarcin C; C027074:tetrocarcin B