Jaspamycin (7-CN-7-C-Ino) does not bind with purified human PKARIα. Anti-parasite activity. Jaspamycin (7-CN-7-C-Ino) is a potent activator of PKA, binding to the R site (PKAR), with an EC50 of 6.5 nM and Kd of 8 nM in Trypanosoma brucei.
Hygrolidin is a macrocyclic lactone originally isolated from S. hygroscopicus. It inhibits proliferation of a variety of cancer cell lines, including DLD-1 colon cancer, LNCaP prostate cancer, and K562 leukemia cells (IC50s = 2.9, 5.2, and 33 ng ml, respectively). Hygrolidin induces the expression and levels of p21 in DLD-1 cells, but not WI-38 fibroblasts, and leads to cell accumulation in the G1 and S phases without inducing apoptosis. It has antiparasitic activity against T. cruzi, L. donovani, and T. b. brucei but also induces cytotoxicity in HepG2 cells (IC50s = 1.1, 72.5, 77, and 24.5 nM, respectively).
NPD-2975(化合物30)是一款口服活性的抗锥虫药物,用于治疗非洲人类锥虫病(HAT)。在MRC-5人肺成纤维细胞及T. b. brucei感染的小鼠模型中,NPD-2975毒性低。此化合物展现了良好的代谢稳定性,在体外对T. b. brucei IC500抑制浓度为70 nM。NPD-2975还可抑制CYP450酶,对CYP1A2和CYP2C19的IC50分别为0.16 μM和0.42 μM。
Orfamide A, a lipopeptide biosurfactant isolated from P. protegens, exhibits multifaceted bioactivity. With an LC50 of 34.5 μg/ml, it significantly increases mortality in adult green peach aphids. Additionally, at a concentration of 50 μM, Orfamide A inhibits appressoria formation in M. oryzae isolates and decreases the prevalence of sporulating blast lesions in M. oryzae-infected plants. Furthermore, it demonstrates efficacy against T. b. brucei, with an IC50 value of 6 µM.