758722-49-5

AZD-4877 是一种高效的纺锤体驱动蛋白 (Eg5) 抑制剂，对其 IC50 值为 2 nM。 AZD-4877 是 Ispinesib 的另一种构型， 能够抑制细胞有丝分裂，诱导形成单极纺锤体表型，介导细胞凋亡(Apoptosis)。 AZD-4877 具有抗肿瘤活性，对循环外周血单核细胞 (PBMC)有抑制作用。

AZD4877 is a synthetic kinesin spindle protein (KSP) inhibitor with potential antineoplastic activity. KSP inhibitor AZD4877 selectively inhibits microtubule motor protein KSP (also called kinesin-5 or Eg5), which may result in the inhibition of mitotic spindle assembly; activation of the spindle assembly checkpoint; induction of cell cycle arrest during the mitotic phase; and cell death in tumor cells that are actively dividing. Because KSP is not involved in postmitotic processes, such as neuronal transport, this agent may be less likely to cause the peripheral neuropathy often associated with the tubulin-targeting agents. Eg5 is essential for the formation of bipolar spindles and the proper segregation of sister chromatids during mitosis.