estrogenreceptor

Vepdegestrant (ARV-471) is an estrogen receptor (ER) α PROTAC molecule that degrades ER in ER-positive breast cancer cell lines with a DC50 of approximately 1 nM. It can reduce the expression of classically regulated ER target genes and inhibit the growth of ER-dependent cell lines (including those expressing ESR1 variants, such as Y537S and D538G) by degrading ER.

ERD-3111 (Compound 44), an orally active PROTAC ERα degrader (DC50: 0.5 nM), exhibits efficacy in inhibiting tumor growth in both the parental MCF-7 xenograft model harboring wild-type ER and two ESR1-mutated mouse models. This compound has utility in the investigation of ER+ breast cancer [1].

PROTAC ERRα ligand 1 is an estrogen-related receptor α (ERRα) antagonist with IC50 values of 0.04 μM for ERRα and 2.8 μM for ERRγ.

PROTAC ERRα ligand 2 is an inverse agonist for the estrogen-related receptor α (ERRα) with an IC50 of 5.67 nM.