Cited by 1,311Extracellular vesicles in diseaseCancer Cells and MetastasisWnt/β-catenin signaling in development and cancer

Exosomes Mediate Stromal Mobilization of Autocrine Wnt-PCP Signaling in Breast Cancer Cell Migration

Open access
Luga, Valbona, Zhang, Liang, Viloria-Petit, Alicia M., Ogunjimi, Abiodun A., Inanlou, Mohammad R., Chiu, Elaine, Buchanan, Marguerite, Hosein, Abdel Nasser +2 more·2012·Cell

Abstract

Stroma in the tumor microenvironment plays a critical role in cancer progression, but how it promotes metastasis is poorly understood. Exosomes are small vesicles secreted by many cell types and enable a potent mode of intercellular communication. Here, we report that fibroblast-secreted exosomes promote breast cancer cell (BCC) protrusive activity and motility via Wnt-planar cell polarity (PCP) signaling. We show that exosome-stimulated BCC protrusions display mutually exclusive localization of the core PCP complexes, Fzd-Dvl and Vangl-Pk. In orthotopic mouse models of breast cancer, coinjection of BCCs with fibroblasts dramatically enhances metastasis that is dependent on PCP signaling in BCCs and the exosome component, Cd81 in fibroblasts. Moreover, we demonstrate that trafficking in BCCs promotes tethering of autocrine Wnt11 to fibroblast-derived exosomes. This work reveals an intercellular communication pathway whereby fibroblast exosomes mobilize autocrine Wnt-PCP signaling to drive BCC invasive behavior.

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Crossref · 10.1016/j.cell.2012.11.024

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  • CAFs are a substantial source of growth factors, cytokines and exosomes that can promote tumour growth and modulate therapy responses.

    “CAFs are also a substantial source of growth factors, cytokines and exosomes that can promote tumour growth and modulate therapy responses27,106–108.”

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Authors
Luga, V., Zhang, L., Viloria-Petit, A. M., Ogunjimi, A. A., Inanlou, M. R., Chiu, E., Buchanan, M., Hosein, A. N., Basik, M., & Wrana, J. L.
Affiliations
  • Mount Sinai Hospital (CA)
  • Jewish General Hospital (CA)
Corresponding author
Wrana, Jeffrey L.
Venue
Cell
Publisher
Elsevier BV
Published
2012-12
Volume
151
Issue
7
Pages
1542-1556
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2142755954
Cited by
1,311
References
39
Citations by year
2026: 32 · 2025: 59 · 2024: 95 · 2023: 80 · 2022: 109 · 2021: 123 · 2020: 134 · 2019: 115 · 2018: 103 · 2017: 105 · 2016: 108 · 2015: 106 · 2014: 89 · 2013: 52
FWCI
31.69
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Terry Fox Research Institute
  • Canadian Institutes of Health Research
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
Keywords
exosomes, Wnt/PCP signaling, breast cancer cell migration, tumor microenvironment, CD81, Wnt11, planar cell polarity, intercellular communication, metastasis, tumor stroma, cell protrusions
MeSH terms
Animals, Breast Neoplasms, Cell Movement, Disease Models, Animal, Female, Fibroblasts, Humans, Neoplasm Metastasis, Mice, SCID, Cell Polarity, Autocrine Communication, Cell Line, Tumor, Wnt Proteins, Mice, Exosomes, Tumor Microenvironment, Tetraspanin 28

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