PF-543 (Sphingosine Kinase 1 Inhibitor II) 是一种有效，选择性，可逆和鞘氨醇竞争性 SPHK1 抑制剂，IC50 为 2 nM，Ki 为 3.6 nM。PF-543 对 SPHK1 的选择性是 SPHK2 的 100 倍以上。PF-543 还是有效的全血中 1-磷酸鞘氨醇 (S1P) 形成的有效抑制剂，IC50 为 26.7 nM。PF-543 诱导细胞凋亡，坏死和自噬。 product description： PF-543 (Sphingosine Kinase 1 Inhibitor II) is a potent, selective, reversible and sphingosine-competitive SPHK1 inhibitor with an IC50 of 2 nM and a Ki of 3.6 nM. PF-543 is >100-fold selectivity for SPHK1 over SPHK2. PF-543 is an effective potent inhibitor of sphingosine 1-phosphate (S1P) formation in whole blood with an IC50 of 26.7 nM. PF-543 induces apoptosis, necrosis, and autophagy.