Journal
CANCER CELL
Volume 6, Issue 3, Pages 297-305Publisher
CELL PRESS
DOI: 10.1016/j.ccr.2004.08.012
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Funding
- NIAID NIH HHS [AI43477] Funding Source: Medline
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We used an experimental murine cancer metastasis model in which a colon adenocarcinoma cell line generates lung metastases, whose growth is stimulated in response to injection of bacterial lipopolysaccharide (LPS), to investigate the role of NF-kappaB in inflammation-induced tumor growth. We found that LPS-induced metastatic growth response in this model depends on both TNFalpha production by host hematopoietic cells and NF-kappaB activation in tumor cells. Inhibition of NF-kappaB in both colon and mammary carcinoma cells converts the LPS-induced growth response to LPS-induced tumor regression. The latter response is TNFalpha-independent, but depends on another member of the TNF superfamily, TRAIL, whose receptor is induced in NF-kappaB-deficient cancer cells.
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