JIB-04

JIB-04 is a potent, cell-permeable inhibitor of Jumonji histone demethylase in vitro and in vivo (IC50 values are 230, 340, 435, 445, 855 and 1100 nM for JARID1A, JMJD2E, JMJD2B, JMJD2A, JMJD3 and JMJD2C respectively). JIB-04 selectively inhibited viability of several human cancer cell lines with little toxicity towards normal cells, and also diminished tumor growth in two separate xenograft mouse models. JIB 04 selectively blocks cancer cell growth in vitro and diminishes tumor growth in H358 and A549 mouse xenograft models in vivo. JIB-04 induces transcriptional changes in a cancer-selective manner, including the downregulation of proliferative genes and the upregulation of the anti-proliferative/pro-apoptotic genes.