MCB-36 is a VHL-recruiting pan-KRAS PROTAC degrader without affecting KRAS transcription. MCB-36 exhibits minimal effects on HRAS and NRAS protein levels. MCB-36 binds to the GDP-loaded state of G12D, G12C, G12V, and wild-type KRAS with high affinities Kd ~ 1 pM). MCB-36 decreases p-ERK levels, leading to cell apoptosis. MCB-36 effectively suppress KRASG12C inhibitor-resistant cancer cells and remodel the tumor immune microenvironment. MCB-36 can be used for the study of colorectal cancer and lung cancer (Pink: Target protein ligand, Blue: E3 ligand (HY-112078), Black: Linker (HY-W091879))[1].
