ml-211

ML-211 is a carbamate-based dual inhibitor of LYPLA1 (IC50 = 17 nM) and the related LYPLA2 (IC50 = 30 nM)

Napyradiomycin A1is a fungal metabolite originally isolated fromC. rubraand has diverse biological activities.1,2It is active againstS. aureus,M. luteus,B. anthracis,C. bovis, andM. smegmatis(MICs = 1.56-12.5 μg/ml).1Napyradiomycin A1is an estrogen receptor antagonist (IC50= 4.2 μM in rat uterine homogenates).2It also inhibits mitochondrial NADH:ubiquinone oxidoreductase (complex I) and succinate:ubiquinone oxidoreductase (complex II) activities in bovine heart homogenates (IC50s = 20 and 9.7 μM, respectively).3 1.Shiomi, K., Iinuma, H., Hamada, M., et al.Novel antibiotics napyradiomycins. Production, isolation, physico-chemical properties and biological activityJ. Antibiot. (Tokyo)39(4)487-493(1986) 2.Hori, Y., Abe, Y., Shigematsu, N., et al.Napyradiomycins A and B1: Non-steroidal estrogen-receptor antagonists produced by a StreptomycesJ. Antibiot. (Tokyo)46(12)1890-1893(1993) 3.Yamamoto, K., Tashiro, E., Motohashi, K., et al.Napyradiomycin A1, an inhibitor of mitochondrial complexes I and IIJ. Antibiot. (Tokyo)65(4)211-214(2012)

FD-211 is a δ lactone originally isolated from M. lutea with anticancer activity.1 It is cytotoxic to adriamycin-susceptible P388, T-24, HeLa, A549, and HL-60 cancer cells (IC50s = 4, 0.5, 1, 1, and 0.2 μg/ml, respectively), as well as adriamycin-resistant HL-60/ADR cells (IC50 = 0.1 μg/ml). FD-211 also inhibits DNA, RNA, and protein synthesis in HeLa cells (IC50 = 1.25 μg/ml for all). |1. Nozawa, O., Okazaki, T., Sakai, N., et al. A novel bioactive δ lactone FD-211. Taxonomy, isolation and characterization. J. Antibiot. (Tokyo) 48(2), 113-118 (1995).