A potent nuclear receptor TR3 (Nur77)-specific targeting compound that can induce melanoma autophagy through a mitochondrial signaling pathway.

C-DIM5 is a Nur77 agonist. Activation of the orphan nuclear receptor Nur77 by C-DIM5 is associated with decreased cancer cell survival,

Cl-OCH3 is an antagonist of nuclear receptor NR4A1, decreases PD-L1 protein expression in MDA-MB-231 and 4T1 cells with EC50 of 4.4 and 4.1 uM, respectively; Cl-OCH3 decreased expression of PD-L1 mRNA, promoter-dependent luciferase activity, and protein. In in vivo studies using a syngeneic mouse model bearing orthotopically injected 4T1 cells, Cl-OCH3 decreased tumor growth and weight and inhibited lung metastasis. Cl-OCH3 also decreased expression of CD3+/CD4+/CD25+/FoxP3+ regulatory T cells and increased the Teff/Treg ratio.