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A plastic EMP1⁺ to LGR5⁺ cell state conversion as a therapeutic bypass to KRAS-G12D inhibition in metastatic colorectal cancer [ATAC-Seq]

GSE294817 Mus musculus Genome binding/occupancy profiling by high throughput sequencing 4 samples Submitted 2025/09/29 Platform GPL30172
Summary
Inhibitors of the oncogene KRAS holds promise for treating metastatic CRC (mCRC). Here we show that the activity of a small molecule RAS inhibitor, RM-044, which covalently binds to the G12D mutation in the active (ON) conformation of RAS, demonstrated strong curative effects in CRC models of early liver metastases, but its therapeutic activity was diminished in the advanced metastatic disease. RM-044-treated metastases underwent a fast transition from a poor-prognosis-associated Emp1⁺ transcriptional cell state to a WNT-driven Lgr5⁺ stem cell-like state that supported tumor growth in the absence of RAS G12D activity. This plastic conversion involved a switch in transcription factor usage, and did not require extensive chromatin remodeling. Enforced conversion of metastatic cells to the Lgr5⁺ state via RAS G12D inhibition, followed by genetic ablation of this population, produced strong therapeutic effects. Overall, these findings demonstrate a central role for oncogenic KRAS in governing cellular plasticity in mCRC.
Published in
A Plastic EMP1+ to LGR5+ Cell State Conversion as a Bypass to KRASG12D Pharmacologic Inhibition in Metastatic Colorectal Cancer
Centonze A, Roura AJ, Novillo-Font M et al. · Cancer discovery 2026 · PMID 41128661 · doi:10.1158/2159-8290.CD-25-0679
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Also filed as BioProject PRJNA1251645 and SRA study SRP579162. Searching any of these in the dataset finder brings you back here.

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