title: CC-1065 (NSC-298223), a new antitumor antibiotic. Production, in vitro biological activity, microbiological assays and taxonomy of the producing microorganism.
abstract: A new antitumor antibiotic is produced in fermentation liquors of Streptomyces zelensis sp.n. The antibiotic is biologically active at extremely low concentrations. At 40 pg/ml, it inhibited 90% of the growth of L1210 cells in culture in tube dilution assays. The minimal inhibitory concentrations against Gram-positive bacteria is between 1 approximately 10 ng/ml, while these values for Gram-negative bacteria and fungi are mostly under 1 microgram/ml. A microbiological assay with Bacillus subtilis can detect concentrations of 1 approximately 2 ng/ml.
mesh_terms: D000818:Animals; D000903:Antibiotics, Antineoplastic / Q000096:biosynthesis / Q000494:pharmacology*; D001412:Bacillus subtilis / Q000187:drug effects; D002478:Cells, Cultured; D007939:Leukemia L1210 / Q000188:drug therapy; D051379:Mice; D012505:Sarcina / Q000187:drug effects; D013302:Streptomyces / Q000145:classification / Q000378:metabolism*
chemical_list: D000903:Antibiotics, Antineoplastic