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rdf:type
lifeskim:mentions
pubmed:dateCreated
2011-9-5
pubmed:abstractText
Non-collagenous ?3 chain of type IV collagen or ?3(IV)NC1, a 28 kDa C-terminal domain of collagen type IV is a specific inhibitor of endothelial cell translation and angiogenesis. In the present study we have cloned and expressed mouse ?3(IV)NC1 in baculovirus system. The recombinant protein was expressed in soluble form and tested for several of its biological functions. We identified that this recombinant mouse ?3(IV)NC1 specifically inhibited proliferation, translation and tube formation of endothelial cells. Also, we show that ?3(IV)NC1 treatment results in apoptosis specifically in proliferating endothelial cells. In addition we report for the first time that mouse ?3(IV)NC1 inhibits migration and p38 MAPK phosphorylation in addition to inhibition of FAK/Akt/mTOR/4E-BP1 signaling. In mice ?3(IV)NC1 treatment reduced tumor growth and CD-31 positive endothelial vasculature in tumors. Collectively, our data demonstrate the expression of biologically active form of mouse ?3(IV)NC1 in Sf-9 cells and provide important mechanistic insights on ?3(IV)NC1 antiangiogenic actions in endothelial cells.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:issn
1177-9314
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
73-81
pubmed:year
2008
pubmed:articleTitle
Molecular Cloning and Functional Characterization of Mouse ?3(IV)NC1.
pubmed:affiliation
Cell Signaling and Tumor Angiogenesis Laboratory, Department of Genetics, Boys Town National Research Hospital, Omaha, Nebraska, U.S.A.
pubmed:publicationType
Journal Article