Defining the KRAS- and ERK-dependent transcriptome in KRAS-mutant cancers
- Science. 2024 Jun 7;384(6700):eadk0775. doi: 10.1126/science.adk0775.
- 1. Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
- 2. Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
- 3. Cell Biology and Physiology Curriculum, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
- 4. Curriculum in Genetics and Molecular Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
- 5. Illumina, Inc., San Diego, CA 92121, USA.
- 6. Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA.
- 7. Michael Hooker Proteomics Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
- 8. Monoceros Biosystems LLC, San Diego, CA 92130, USA.
- 9. Mirati Therapeutics, Inc., San Diego, CA 92121, USA.
- 10. Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
- 11. Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland.
- 12. Division of Medical Oncology, Department of Internal Medicine, Washington University in St. Louis, St. Louis, MO 63110, USA.
- 13. Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark.
- 14. Department of Radiation Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
How the KRAS oncogene drives Cancer growth remains poorly understood. Therefore, we established a systemwide portrait of KRAS- and extracellular signal-regulated kinase (ERK)-dependent gene transcription in KRAS-mutant Cancer to delineate the molecular mechanisms of growth and of inhibitor resistance. Unexpectedly, our KRAS-dependent gene signature diverges substantially from the frequently cited Hallmark KRAS signaling gene signature, is driven predominantly through the ERK mitogen-activated protein kinase (MAPK) cascade, and accurately reflects KRAS- and ERK-regulated gene transcription in KRAS-mutant Cancer patients. Integration with our ERK-regulated phospho- and total proteome highlights ERK deregulation of the anaphase promoting complex/cyclosome (APC/C) and Other components of the cell cycle machinery as key processes that drive pancreatic ductal adenocarcinoma (PDAC) growth. Our findings elucidate mechanistically the critical role of ERK in driving KRAS-mutant tumor growth and in resistance to KRAS-ERK MAPK targeted therapies.