Plinabulin

**Semantic type:** Organic Chemical|Pharmacologic Substance

**Definition:** An orally active diketopiperazine derivative with potential antineoplastic activity. Plinabulin selectively targets and binds to the colchicine-binding site of tubulin, thereby interrupting equilibrium of microtubule dynamics. This disrupts mitotic spindle assembly leading to cell cycle arrest at M phase and blockage of cell division. In addition, plinabulin may also inhibit growth of proliferating vascular endothelial cells, thereby disrupting the function of tumor vasculature that further contributes to a decrease in tumor cell proliferation.

**Synonyms:** - (3Z,6Z)-6-benzylidene-3-{[5-(1,1-dimethylethyl)-1H-imidazol-4-yl]methylidene}piperazine-2,5-dione - NPI 2358 - NPI-2358 - NPI2358 - PLINABULIN