Cited by 196Protein Kinase Regulation and GTPase SignalingWnt/β-catenin signaling in development and cancerPancreatic and Hepatic Oncology Research

The DOI matches its Crossref record; 62 of the 64 references it cites were found in a registry or an index.

K-Ras Promotes Tumorigenicity through Suppression of Non-canonical Wnt Signaling

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Abstract

K-Ras and H-Ras share identical effectors and have similar properties; however, the high degree of tumor-type specificity associated with K-Ras and H-Ras mutations suggests that they have unique roles in oncogenesis. Here, we report that oncogenic K-Ras, but not H-Ras, suppresses non-canonical Wnt/Ca(2+) signaling, an effect that contributes strongly to its tumorigenic properties. K-Ras does this by binding to calmodulin and so reducing CaMKii activity and expression of Fzd8. Restoring Fzd8 in K-Ras mutant pancreatic cells suppresses malignancy, whereas depletion of Fzd8 in H-Ras(V12)-transformed cells enhances their tumor initiating capacity. Interrupting K-Ras-calmodulin binding using genetic means or by treatment with an orally active protein kinase C (PKC)-activator, prostratin, represses tumorigenesis in K-Ras mutant pancreatic cancer cells. These findings provide an alternative way to selectively target this "undruggable" protein.

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Crossref · 10.1016/j.cell.2015.10.041

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Metadata

Authors
Wang, M.-T., Holderfield, M., Galeas, J., Delrosario, R., To, M. D., Balmain, A., & McCormick, F.
Affiliations
University of California, San Francisco (US)
Corresponding author
McCormick, Frank
Venue
Cell
Publisher
Elsevier BV
Published
2015-11
Volume
163
Issue
5
Pages
1237-1251
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2175955272
Cited by
196
References
64
Citations by year
2026: 13 · 2025: 4 · 2024: 6 · 2023: 14 · 2022: 18 · 2021: 19 · 2020: 23 · 2019: 17 · 2018: 21 · 2017: 30 · 2016: 27 · 2015: 1
FWCI
11.44
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Lustgarten Foundation
  • Daiichi-Sankyo
  • National Institutes of Health
  • Daiichi Sankyo Europe
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 › Wnt/β-catenin signaling in development and cancer
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
Keywords
KRAS, H-Ras, calmodulin, CaMKII, FZD8, pancreatic cancer, tumorigenicity, prostratin, protein kinase C, tumor initiation
MeSH terms
Amino Acid Sequence, Animals, Calmodulin, Disease Models, Animal, Female, Humans, Molecular Sequence Data, Pancreatic Neoplasms, Papilloma, Phorbol Esters, Phosphorylation, Protein Binding, Genes, ras, Receptors, Cell Surface, Proto-Oncogene Proteins p21(ras), Animals, Genetically Modified, Cell Line, Tumor, Mice, Wnt Signaling Pathway

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