title: Potent in vitro antimalarial activity of metacycloprodigiosin isolated from Streptomyces spectabilis BCC 4785.
abstract: Bioassay-guided fractionation of the extract from the fermentation broth of Streptomyces spectabilis BCC 4785 led to the isolation of three principle antimalarial agents, metacycloprodigiosin, bafilomycin A(1), and spectinabilin. Metacycloprodigiosin exhibited potent in vitro activity against Plasmodium falciparum K1, with a 50% inhibitory concentration of 0.0050 +/- 0.0010 microg/ml, while its cytotoxicity was much weaker.
authors.affiliation: National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Bangkok 10400, Thailand. isaka@biotec.or.th
authors.forename: Masahiko
authors.initials: M
authors.lastname: Isaka
authors.forename: Amonlaya
authors.initials: A
authors.lastname: Jaturapat
authors.forename: Jarin
authors.initials: J
authors.lastname: Kramyu
authors.forename: Morakot
authors.initials: M
authors.lastname: Tanticharoen
authors.forename: Yodhathai
authors.initials: Y
authors.lastname: Thebtaranonth
mesh_terms: D000818:Animals; D000962:Antimalarials / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D005285:Fermentation; D010963:Plasmodium falciparum / Q000187:drug effects*; D011353:Prodigiosin / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D012988:Soil Microbiology; D013302:Streptomyces / Q000737:chemistry*
chemical_list: D000962:Antimalarials; C098402:metacycloprodigiosin; D011353:Prodigiosin