Cited by 126Protein Kinase Regulation and GTPase SignalingMelanoma and MAPK PathwaysAutophagy in Disease and Therapy

MAP kinase and autophagy pathways cooperate to maintain RAS mutant cancer cell survival

Open access
Lee, Chih-Shia, Lee, Liam C., Yuan, Tina L., Chakka, Sirisha, Fellmann, Christof, Lowe, Scott W., Caplen, Natasha J., McCormick, Frank +1 more·2019·Proceedings of the National Academy of Sciences

Abstract

Significance: Currently, there is no effective targeted therapy for oncogenic KRAS -driven cancer. We set out to identify RAS effector and stress response genes that critically support KRAS addiction, and therefore could serve as potential targets for KRAS mutant cancer. Using a combinatorial siRNA platform, we systematically interrogated the patterns of oncoeffector dependency in KRAS mutant and WT colorectal and pancreatic cancer cell lines and in normal cell lines. We found that RAF kinases are the major KRAS oncoeffectors and that cotargeting BRAF and CRAF kinases together with the autophagy E1 ligase ATG7 could efficiently eliminate KRAS mutant cells while minimizing toxicity in normal cells. Our work thus establishes a framework for the rational selection of target combinations for cancer treatment.

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Crossref · 10.1073/pnas.1817494116

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  • Genetic and pharmacological screens identified RTK signaling to PI3K and mTOR, and autophagy, as collateral dependencies with KRAS and MAPK pathway inhibitors.

    “These experiments have identified receptor tyrosine kinase (RTK) signaling to PI3K and mTOR (23, 37–40), as well as the autophagy pathway (30) as collateral dependencies with KRAS and MAPK pathway inhibitors.”

    From KRAS mutation in pancreatic cancer (2021) · cites this paper as [30]

  • In KRAS-mutant pancreatic cancer cells, the autophagy pathway acts as a collateral dependency alongside MAPK pathway inhibition.

    “Recently, through combinatorial RNAi screens and hypothesis-driven approaches, we and others have identified the autophagy pathway as a collateral dependency partner with MAPK pathway inhibitors in pancreatic cancer cells with KRAS mutation (30, 95, 96).”

    From KRAS mutation in pancreatic cancer (2021) · cites this paper as [30]

  • Three simultaneously published studies indicated that upon inhibition of the MAPK pathway, KRAS-mutant tumors depend on autophagy for survival.

    “These studies indicated that upon the inhibition of the MAPK pathway, KRAS-mutant tumors depend on autophagy for survival”

    From New Horizons in KRAS-Mutant Lung Cancer: Dawn After Darkness (2019) · cites this paper as [68]

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Authors
Lee, C.-S., Lee, L. C., Yuan, T. L., Chakka, S., Fellmann, C., Lowe, S. W., Caplen, N. J., McCormick, F., & Luo, J.
Affiliations
  • National Cancer Institute (US)
  • University of California, San Francisco (US)
  • Cold Spring Harbor Laboratory (US)
  • Memorial Sloan Kettering Cancer Center (US)
Venue
Proceedings of the National Academy of Sciences
Published
2019-02
Volume
116
Issue
10
Pages
4508-4517
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2913634791
Cited by
126
References
72
Citations by year
2026: 4 · 2025: 11 · 2024: 14 · 2023: 22 · 2022: 14 · 2021: 26 · 2020: 21 · 2019: 14
FWCI
6.21
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Cold Spring Harbor Laboratory Institutional Repository (Cold Spring Harbor Laboratory) (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (ZIABC011437, T32CA108462, P30CA008748)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Melanoma and MAPK Pathways
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
Keywords
KRAS mutation, MAPK signaling, autophagy, Raf kinase, BRAF, Raf-1, ATG7, colorectal cancer, pancreatic cancer, combination therapy, siRNA screen, tumor cell survival
MeSH terms
Autophagic Cell Death, Cell Survival, Humans, Pancreatic Neoplasms, Colorectal Neoplasms, Proto-Oncogene Proteins p21(ras), Caco-2 Cells, MAP Kinase Signaling System, HCT116 Cells, Extracellular Signal-Regulated MAP Kinases

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