A fungal metabolite with antibiotic and antiparasitic activities
K-41 is a monoglycoside polyether fungal metabolite originally isolated from S. hygroscopicus that has antibiotic and antiparasitic activities.1,2 It is active against B. subtilis, B. anthracis, S. aureus, S. pyogenes, S. pneumoniae, C. diphtheriae, and M. tuberculosis (MICs = 3.13, 1.56, 1.56, 0.78, 0.39, 0.78, and 3.13 µg/ml, respectively).1 K-41 is active against the K1 drug-resistant and FCR3 drug-susceptible P. falciparum strains (IC50s = 8.5 and 31 nM, respectively).2 In vivo, K-41 has antiparasitic activity in mouse models of P. berghei and P. yoelii infection (ED50s = 1.9 and 7.0 mg/kg, respectively).
1.Tsuji, N., Nagashima, K., Kobayashi, M., et al.Two new antibiotics, A-218 and K-41. Isolation and characterizationJ. Antibiot. (Tokyo)29(1)10-14(1976) 2.Moreno, M., and Giralt, E.Three valuable peptides from bee and wasp venoms for therapeutic and biotechnological use: Melittin, apamin and mastoparanToxins71126-1150(2015)
动态评分
0.0