EZH1-dependent H3K27me1 is an adaptive chromatin barrier that limits DNMT inhibitor response in colorectal cancer
This study identifies EZH1-dependent H3K27me1 as a key adaptive barrier limiting DNMT inhibitor efficacy in colorectal cancer and demonstrates that combining DNMT inhibitors with dual EZH1/2 inhibitors overcomes this resistance by eliminating H3K27 methylation, resolving induced bivalent chromatin states, and suppressing oncogenic transcription to enhance therapeutic response.