LOX-Mediated Collagen Crosslinking Is Responsible for Fibrosis-Enhanced Metastasis
Publication Date
2013-03-15Author
Cox, TR
Bird, D
Baker, A-M
Barker, HE
Ho, MW-Y
Lang, G
Erler, JT
Type
Journal Article
Metadata
Show full item recordAbstract
Tumor metastasis is a highly complex, dynamic, and inefficient process involving multiple steps, yet it accounts for more than 90% of cancer-related deaths. Although it has long been known that fibrotic signals enhance tumor progression and metastasis, the underlying molecular mechanisms are still unclear. Identifying events involved in creating environments that promote metastatic colonization and growth are critical for the development of effective cancer therapies. Here, we show a critical role for lysyl oxidase (LOX) in establishing a milieu within fibrosing tissues that is favorable to growth of metastastic tumor cells. We show that LOX-dependent collagen crosslinking is involved in creating a growth-permissive fibrotic microenvironment capable of supporting metastatic growth by enhancing tumor cell persistence and survival. We show that therapeutic targeting of LOX abrogates not only the extent to which fibrosis manifests, but also prevents fibrosis-enhanced metastatic colonization. Finally, we show that the LOX-mediated collagen crosslinking directly increases tumor cell proliferation, enhancing metastatic colonization and growth manifesting in vivo as increased metastasis. This is the first time that crosslinking of collagen I has been shown to enhance metastatic growth. These findings provide an important link between ECM homeostasis, fibrosis, and cancer with important clinical implications for both the treatment of fibrotic disease and cancer. Cancer Res; 73(6); 1721-32. (c) 2012 AACR.
Open access location
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3672851/Collections
Version of record
Language
English
License start date
2013-03-15
Citation
CANCER RESEARCH, 2013, 73 pp. 1721 - 1732
Publisher
AMER ASSOC CANCER RESEARCH