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).
Spinosad (Standard) 是 Spinosad 的标准品,适用于定量分析、质量控制及生化实验等相关研究。Spinosad 是在土壤细菌 S. spinosa 中发现的一种杀虫剂,是大环内酯多杀菌素 A 和多杀菌素 D 的混合物,可作为昆虫烟碱乙酰胆碱酯酶受体 (nAChRs) 的激动剂。它具有优良的环境和哺乳动物毒理学特征,以及杀灭幼虫的活性。
Milbemycin A4, a distinguished member of the macrocyclic lactones family featuring a unique spiroketal group, is derived from the fermentation of the soil bacterium Streptomyces hygroscopicus subsp. aureolacrimosus. It acts by enhancing the opening of glutamate and GABA-gated chloride channels, rendering it effective as both a nematocide and insecticide.