ML-179 is a potent inverse agonist of liver receptor homolog-1 (LRH-1) (IC50 = 320 nM) with maximum efficacy of 40% repression. It is inactive at the related steroidogenic factor-1 transcriptional activator. Through LRH-1, ML-180 alters the expression of haptoglobin and serum amyloid proteins A1 and A4, induces the death of estrogen-receptor negative MDA-MB-231 breast cancer cells, and inhibits the steroidogenic acute regulatory promoter (IC50 = 2.12 μM).
