Cited by 164Wnt/β-catenin signaling in development and cancerCancer Cells and MetastasisLung Cancer Research Studies

Wnt/β-catenin signaling accelerates mouse lung tumorigenesis by imposing an embryonic distal progenitor phenotype on lung epithelium

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Pacheco-Pinedo, Eugenia C., Durham, Amy C., Stewart, Kathleen M., Goss, Ashley M., Lu, Min Min, DeMayo, Francesco J., Morrisey, Edward E.·2011·Journal of Clinical Investigation

Abstract

Although mutations in Kras are present in 21% of lung tumors, there is a high level of heterogeneity in phenotype and outcome among patients with lung cancer bearing similar mutations, suggesting that other pathways are important. Wnt/β-catenin signaling is a known oncogenic pathway that plays a well-defined role in colon and skin cancer; however, its role in lung cancer is unclear. We have shown here that activation of Wnt/β-catenin in the bronchiolar epithelium of the adult mouse lung does not itself promote tumor development. However, concurrent activation of Wnt/β-catenin signaling and expression of a constitutively active Kras mutant (KrasG12D) led to a dramatic increase in both overall tumor number and size compared with KrasG12D alone. Activation of Wnt/β-catenin signaling altered the KrasG12D tumor phenotype, resulting in a phenotypic switch from bronchiolar epithelium to the highly proliferative distal progenitors found in the embryonic lung. This was associated with decreased E-cadherin expression at the cell surface, which may underlie the increased metastasis of tumors with active Wnt/β-catenin signaling. Together, these data suggest that activation of Wnt/β-catenin signaling can combine with other oncogenic pathways in lung epithelium to produce a more aggressive tumor phenotype by imposing an embryonic distal progenitor phenotype and by decreasing E-cadherin expression.

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  1. Sunaga N, Kohno T, Kolligs FT, Fearon ER, Saito R, Yokota J. Constitutive activation of the Wnt signal- ing pathway by CTNNB1 (beta-catenin) mutations in a subset of human lung adenocarcinoma. Genes Chromosomes Cancer. 2001;30(3):316-321.
  2. Jen Y, Manova K, Benezra R. Expression patterns of Id1, Id2, and Id3 are highly related but distinct from that of Id4 during mouse embryogenesis. Dev Dyn. 1996;207(3):235-252.

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Authors
Pacheco-Pinedo, E. C., Durham, A. C., Stewart, K. M., Goss, A. M., Lu, M. M., DeMayo, F. J., & Morrisey, E. E.
Affiliations
  • University of Pennsylvania (US)
  • Baylor College of Medicine (US)
Corresponding author
Morrisey, Edward E.
Venue
Journal of Clinical Investigation
Published
2011-05-02
Volume
121
Issue
5
Pages
1935-1945
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2074358850
Cited by
164
References
60
Citations by year
2026: 3 · 2025: 6 · 2024: 8 · 2023: 11 · 2022: 17 · 2021: 7 · 2020: 13 · 2019: 9 · 2018: 12 · 2017: 8 · 2016: 5 · 2015: 17 · 2014: 17 · 2013: 18 · 2012: 11
FWCI
6.24
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (R01HL087825, R01HL064632, HL064632, HL087825)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
  • Health Sciences › Medicine › Oncology › Lung Cancer Research Studies
Keywords
Wnt/β-catenin signaling, lung carcinogenesis, KRAS G12D, KRAS mutation, bronchiolar epithelium, E-cadherin, metastasis, lung cancer, mouse lung
MeSH terms
Animals, Bronchi, Cell Membrane, Epithelial Cells, Humans, Lung, Lung Neoplasms, Mice, Transgenic, Mutation, Phenotype, Stem Cells, Signal Transduction, Cadherins, Gene Expression Regulation, Neoplastic, Cell Line, Tumor, Wnt Proteins, Mice

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