Cell-permeable calmodulin (CaM) agonist that binds to the EF-hand/Ca2+-binding site; produces CaM-dependent activation of phosphodiesterase. Also binds to cytoplasmic sites on other Ca2+ channels, including NMDA and HIV-1 gp120-activated channels, inhibiting Ca2+-mediated cytotoxicity and apoptosis (IC50 = 52 μM). Shown to protect pancreatic acinar cells from gossypol induced necrosis. Inhibits VLA-5-mediated adhesion of mast cells to fibronectin in vitro and attenuates inflammatory cell influx in guinea pig lung in vivo.

Polymyxin B 是一种抗生素 (antibiotic)。Polymyxin B 通过与细菌 (bacterial) 壁的 LPS 高亲和力结合去抑制革兰氏阴性菌 (Gram-negative) 感染。Polymyxin B 可以中和内毒素的效果。Polymyxin B 通过增加其渗透性诱导细菌死亡。Polymyxin B 可用于内毒素血症研究。

2-Deacetoxytaxinine J shows significant in vitro activity against breast cancer cell line at a concentration of 20 microM and 10 microM in MCF-7 and MDA-MB-231 respectively.