GSK789 is a selective inhibitor of BET BD1. GSK789 inhibits the growth of leukemia cell lines. GSK789 inhibits LPS-stimulated production of MCP-1, TNFalpha and IL-6 in human whole blood. GSK789 exhibits antiproliferative, anti-inflammatory and immunomodulatory activities. GSK789 can be used in research related to cancers such as leukemia, as well as inflammatory and immune diseases[1].