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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2011-3-25
pubmed:abstractText
A close relationship between tumor angiogenesis, growth, and carcinomatosis has been observed. Netrin-4 (NT-4) has been shown to regulate angiogenic responses. We aimed to examine the effects of NT-4 on colon tumor angiogenesis, growth, and carcinomatosis. We showed that NT-4 was expressed in human colon cancer cells (LS174). A 20-fold increase in NT-4 expression was stably induced by NT-4 pcDNA in LS174 cells. In vivo, a Matrigel angiogenesis assay showed that NT-4 overexpression altered vascular endothelial growth factor (VEGF)/basic fibroblast growth factor-induced angiogenesis. In nude mice with LS174 xenografts, NT-4 overexpression inhibited tumor angiogenesis and growth. In addition, these NT-4-involved inhibitory effects were associated with decreased tumor cell proliferation and increased tumor cell apoptosis. Using an orthotopic peritoneal carcinomatosis model, we demonstrated that NT-4 overexpression decreased colorectal cancer carcinomatosis. Moreover, carcinomatosis-related ascites formation was significantly decreased in mice transplanted with NT-4 LS174 cells versus control LS174 cells. The antiangiogenic activity of NT-4 was probably mediated by binding to its receptor neogenin. Netrin-4 had a direct effect on neither in vitro apoptosis and proliferation of cultured LS174 cells nor the VEGF-induced acute increase in vascular permeability in vivo. We propose that NT-4 overexpression decreases tumor growth and carcinomatosis, probably via an antiangiogenic effect, underlying the potential therapeutic interest in NT-4 in the treatment of colorectal cancer growth and carcinomatosis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1525-2191
pubmed:author
pubmed:copyrightInfo
Copyright © 2011 American Society for Investigative Pathology. Published by Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
178
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1861-9
pubmed:meshHeading
pubmed-meshheading:21406174-Angiogenesis Inhibitors, pubmed-meshheading:21406174-Animals, pubmed-meshheading:21406174-Carcinoma, pubmed-meshheading:21406174-Cell Line, Tumor, pubmed-meshheading:21406174-Collagen, pubmed-meshheading:21406174-Colorectal Neoplasms, pubmed-meshheading:21406174-Disease Progression, pubmed-meshheading:21406174-Drug Combinations, pubmed-meshheading:21406174-Female, pubmed-meshheading:21406174-Gene Expression Profiling, pubmed-meshheading:21406174-Gene Expression Regulation, Neoplastic, pubmed-meshheading:21406174-Humans, pubmed-meshheading:21406174-Laminin, pubmed-meshheading:21406174-Mice, pubmed-meshheading:21406174-Mice, Nude, pubmed-meshheading:21406174-Neoplasm Transplantation, pubmed-meshheading:21406174-Neovascularization, Pathologic, pubmed-meshheading:21406174-Nerve Growth Factors, pubmed-meshheading:21406174-Proteoglycans
pubmed:year
2011
pubmed:articleTitle
Netrin-4 delays colorectal cancer carcinomatosis by inhibiting tumor angiogenesis.
pubmed:affiliation
INSERM U965 (Paris 7 University), Hôpital Lariboisière, Paris, France.
pubmed:publicationType
Journal Article