Cited by 68Pancreatic and Hepatic Oncology ResearchGrowth Hormone and Insulin-like Growth FactorsCancer Cells and Metastasis

Autocrine IGF1 Signaling Mediates Pancreatic Tumor Cell Dormancy in the Absence of Oncogenic Drivers

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Rajbhandari, Nirakar, Lin, Wan-chi, Wehde, Barbara L., Triplett, Aleata A., Wagner, Kay-Uwe·2017·Cell Reports

Abstract

Mutant KRAS and c-MYC are oncogenic drivers and rational therapeutic targets for the treatment of pancreatic cancer. Although tumor growth and homeostasis are largely dependent on these oncogenes, a few residual cancer cells are able to survive the ablation of mutant KRAS and c-MYC. By performing a genome-wide gene expression analysis of in vivo-derived bulk tumor cells and residual cancer cells lacking the expression of mutant KRAS or c-MYC, we have identified an increase in autocrine IGF1/AKT signaling as a common survival mechanism in dormant cancer cells. The pharmacological inhibition of IGF-1R reduces residual disease burden and cancer recurrence, suggesting that this molecular pathway is crucial for the survival of cancer cells in the absence of the primary oncogenic drivers.

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Crossref · 10.1016/j.celrep.2017.02.013

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  • In KRAS-mutated pancreatic ductal cancer cells, KRAS inhibition decreased c-Myc expression, upregulated the expression of a gene set associated with the IGF-1 pathway, and increased IGF-1R phosphorylation.

    “In KRAS-mutated pancreatic ductal cancer cells, KRAS inhibition decreased c-Myc expression, upregulated the expression of a gene set associated with the IGF-1 pathway in gene array-based transcriptome analysis, and increased IGF-1R phosphorylation [41].”

    From Epithelial-mesenchymal transition status is a remarkable biomarker for the combination treatment with avutometinib and defactinib in KRAS-mutated non-small cell lung cancer (2024) · cites this paper as [41]

    The Results section on oncogenic KRAS ablation reports IGF1-pathway gene-set changes and increased IGF-1R phosphorylation in residual mouse tumor cells; a separate Results section reports increased receptor activation after KRAS knockdown in human pancreatic cancer cells. The gene-set analysis was RNA-Seq in the mouse model, not a gene-array analysis in the human cells. The paper describes a change in c-MYC expression after KRAS ablation but does not explicitly state its direction in the available passage. (LLM, conf=0.88)

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Authors
Rajbhandari, N., Lin, W.-C., Wehde, B. L., Triplett, A. A., & Wagner, K.-U.
Affiliations
  • Nebraska Medical Center (US)
  • University of Nebraska Medical Center (US)
Corresponding author
Wagner, Kay-Uwe
Venue
Cell Reports
Publisher
Elsevier BV
Published
2017-02
Volume
18
Issue
9
Pages
2243-2255
ISSN
2211-1247 (ISSN-L)
OpenAlex
W2592443973
Cited by
68
References
30
Citations by year
2026: 2 · 2025: 10 · 2024: 6 · 2023: 6 · 2022: 7 · 2021: 15 · 2020: 4 · 2019: 9 · 2018: 7 · 2017: 1 · 2012: 1
FWCI
2.53
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Nebraska Cancer and Smoking Disease Research Program (NE DHHS LB506 2011-36, LB506 2016-54)
  • Public Health Service (CA202917, R21 CA155175)
  • UNMC Graduate Studies Office
Topics
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
Keywords
pancreatic cancer, tumor dormancy, IGF-1 receptor, Akt signaling, mutant KRAS, c-Myc, residual tumor cells, tumor recurrence, oncogenic drivers, gene expression profiling
MeSH terms
Animals, Humans, Insulin-Like Growth Factor I, Mice, Inbred C57BL, Mice, Transgenic, Mutation, Neoplasm Recurrence, Local, Oncogenes, Pancreas, Pancreatic Neoplasms, Signal Transduction, Gene Expression, Genes, myc, Proto-Oncogene Proteins p21(ras), Receptor, IGF Type 1, Mice, Knockout, Autocrine Communication, Cell Line, Tumor, Cell Proliferation, Proto-Oncogene Proteins c-akt, Mice, Carcinogenesis

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