Picropodophyllin/苦鬼臼毒素
Picropodophyllotoxin is an orally active insulin-like growth factor-1 receptor (IGF-1R) inhibitor with IC50 of 1 nM, and exhibits little effect towards IR, FGFR, PDGFR and EGFR, and exerts no effects on microtubules and DNA topoisomerase II.