PROTAC CARM1 degrader-1 TFA

PROTAC CARM1 degrader-1 TFA is a highly selective CARM1 PROTAC degrader, with a DC₅₀ of 8.1 nM in MCF‑7 cells. PROTAC CARM1 degrader-1 TFA recruits the VHL E3 ubiquitin ligase complex to act on CARM1, inducing a proteasome-dependent degradation process. PROTAC CARM1 degrader-1 TFA downregulates the methylation level of CARM1 substrates in breast cancer cells, inhibits breast cancer cell migration, and exhibits no significant inhibitory effect on cell proliferation. PROTAC CARM1 degrader-1 TFA is applicable for related research on breast cancer ^[1]. (Pink: CARM1 ligand; Blue: VHL ligand; Black: linker).

In Vitro, PROTAC CARM1 degrader-1 (Compound 3b) (0.01‑500 nM; 24 h) TFA potently induces the degradation of CARM1 protein in MCF‑7 cells (DC₅₀ = 8.1 nM, Dmax = 97%), and exhibits high selectivity over PRMT1, PRMT5, and PRMT6; moreover, the CARM1 degradation activity is abolished upon co-treatment with MG132, MLN4924, VH-032 or TP-064 ^[1]. PROTAC CARM1 degrader-1 (0.5 μM; 48 h) TFA downregulates the asymmetric dimethylation modification of the CARM1 substrates BAF155 and PABP1 in MCF‑7 cells^[1]. PROTAC CARM1 degrader-1 (0.5 μM; 20 h) TFA exerts a significant migration inhibitory effect on MDA-MB-231 triple-negative breast cancer cells, with no apparent anti-proliferative activity^[1].

References:
[1]. Xie H, et al. Development of Potent and Selective Coactivator-Associated Arginine Methyltransferase 1 (CARM1) Degraders. Journal of medicinal chemistry. 2023 Sep 28;66(18):13028-13042.