Biological Activity
SR9243 is a liver-X-receptor (LXR) inverse agonist that induces LXR-corepressor interaction.
In Vitro
SR9243 specifically targets LXR and downregulates LXR-mediated gene expression, dose-dependently suppresses LXRα- and LXRβ-dependent transcription at nanomolar concentrations, and potently inhibits LXR-driven luciferase activity in cultured cancer cells. SR9243 potently reduces cancer cell viability at nanomolar concentrations (IC50 appr 15-104 nM) in prostate (PC3 and!DU-145), colorectal (SW620 and HT29), and lung (HOP-62 and NCI-H23) cancer cell lines. And the colony-forming capacity of cancer cells is also significantly loared by SR9243 in a dose-dependent manner. SR9243 is a potent inhibitor of lipogenic gene expression that selectively kills cancer cells by depleting intracellular lipids. Combination of cancer cell media with oleate, stearate, and palmitate in combination completely rescues cancer cell viability in cancer cells. Fatty acid supplementation also rescues the viability of SW620 cells in which glycolysis is substantially disrupted[1].
In Vivo
SR9243 is able to profoundly inhibit tumor glycolysis, lipogenesis, and induce apoptotic cancer cell death without promoting weight loss in vivo. SR9243 inhibits tumor growth without profoundly repressing glycolytic gene expression, and inhibits tumor growth and lipogenesis without hepatotoxicity or inflammation in vivo[1].
References & source
Published experimental findings depend on the model and assay conditions. They do not guarantee equivalent performance in every application. For laboratory research use only.
