Cited by 30Protein Kinase Regulation and GTPase SignalingPancreatic and Hepatic Oncology ResearchProtein Tyrosine Phosphatases

Oncogenic KRAS engages an RSK1/NF1 pathway to inhibit wild-type RAS signaling in pancreatic cancer

Open access
Cheng, Derek K., Oni, Tobiloba E., Thalappillil, Jennifer S., Park, Youngkyu, Ting, Hsiu-Chi, Alagesan, Brinda, Prasad, Nadia V., Addison, Kenneth +4 more·2021·Proceedings of the National Academy of Sciences

Abstract

Significance: For decades, KRAS interactors have been sought after as potential therapeutic targets in KRAS mutant cancers, especially pancreatic ductal adenocarcinoma (PDAC). Our proximity labeling screen with KRAS in PDAC cells highlights RSK1 as a notable mutant-specific interactor. Functionally, we show that RSK1 mediates negative feedback on wild-type (WT) KRAS in PDAC cells. Targeting oncogenic KRAS eliminates the negative feedback on WT RAS and highlights a role for WT RAS signaling in promoting adaptive resistance to mutant KRAS ablation.

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Crossref · 10.1073/pnas.2016904118

Cites

75 of 75 references verified0 citation errors · 0 not checkable

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  • The combination of KRAS (G12C) inhibitor and WT RAS upstream activators, such as SHP2, is synergistic.

    “Furthermore, the combination of KRAS (G12C) inhibitor and WT RAS upstream activators, such as SHP2, is synergistic [105, 106].”
  • Inhibition of oncogenic KRAS disengages the NF1/RSK1 negative feedback pathway, leading to WT RAS activation and triggering adaptive drug resistance.

    “Consequently, inhibition of oncogenic KRAS disengages this negative feedback pathway, leading to WT RAS activation and triggering adaptive drug resistance [105].”
  • SOS1 inhibition in combination with AMG510 showed pharmacological blockade of WT RAS in KRAS (G12C) tumors.

    “SOS1 inhibition in combination with AMG510 showed pharmacological blockade of WT RAS in KRAS (G12C) tumors.”

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Research works printed but not linked: 1

  1. [3]H. Manzano., Clinical benefit with gemcitabine (GEM) as first-line therapy for patients with advanced pancreatic cancer (APC). Ann. Oncol. 9, 54 (1998).

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Authors
Cheng, D. K., Oni, T. E., Thalappillil, J. S., Park, Y., Ting, H.-C., Alagesan, B., Prasad, N. V., Addison, K., Rivera, K. D., Pappin, D. J., Van Aelst, L., & Tuveson, D. A.
Affiliations
  • Cold Spring Harbor Laboratory (US)
  • Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724;
Corresponding author
Tuveson, David A.
Venue
Proceedings of the National Academy of Sciences
Published
2021-05-21
Volume
118
Issue
21
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W3161177300
Cited by
30
References
75
Citations by year
2026: 4 · 2025: 7 · 2024: 5 · 2023: 6 · 2022: 6 · 2021: 2
FWCI
1.49
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Cold Spring Harbor Laboratory Institutional Repository (Cold Spring Harbor Laboratory) (acceptedVersion)
Funders
  • HHS | NIH | National Cancer Institute (F30CA213883, R50CA211506, F30CA200240, F31CA247416)
  • HHS | National Institutes of Health (R01CA188134)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
Keywords
KRAS, RSK1, neurofibromatosis type 1, pancreatic ductal adenocarcinoma, negative feedback, KRAS-mutant cancer, adaptive resistance, therapeutic target
MeSH terms
Animals, Humans, Mutation, Pancreas, Repressor Proteins, Signal Transduction, Proto-Oncogene Proteins p21(ras), Carcinoma, Pancreatic Ductal, Neurofibromin 1, Ribosomal Protein S6 Kinases, 90-kDa, Cell Line, Tumor, Cell Proliferation, Mice

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