Collagen-derived proline promotes pancreatic ductal adenocarcinoma cell survival under nutrient limited conditions
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ncomms16031.pdf
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Author(s)
Olivares, Orianne
Mayers, Jared R.
Gouirand, Victoire
Torrence, Margaret E.
Gicquel, Tristan
Borge, Laurence
Lac, Sophie
Roques, Julie
Lavaut, Marie-Noëlle
Berthezène, Patrice
Date Issued
July 2017
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Olivares, Orianne et al. “Collagen-Derived Proline Promotes Pancreatic Ductal Adenocarcinoma Cell Survival Under Nutrient Limited Conditions.” Nature Communications 8 (July 2017): 16031 © 2017 Author(s)
Version
Final published version
Abstract
Tissue architecture contributes to pancreatic ductal adenocarcinoma (PDAC) phenotypes. Cancer cells within PDAC form gland-like structures embedded in a collagen-rich meshwork where nutrients and oxygen are scarce. Altered metabolism is needed for tumour cells to survive in this environment, but the metabolic modifications that allow PDAC cells to endure these conditions are incompletely understood. Here we demonstrate that collagen serves as a proline reservoir for PDAC cells to use as a nutrient source when other fuels are limited. We show PDAC cells are able to take up collagen fragments, which can promote PDAC cell survival under nutrient limited conditions, and that collagen-derived proline contributes to PDAC cell metabolism. Finally, we show that proline oxidase (PRODH1) is required for PDAC cell proliferation in vitro and in vivo. Collectively, our results indicate that PDAC extracellular matrix represents a nutrient reservoir for tumour cells highlighting the metabolic flexibility of this cancer.
MIT Department
Massachusetts Institute of Technology. Department of Biology
Koch Institute for Integrative Cancer Research at MIT
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Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1038/NCOMMS16031
