Linked Life Data

15687715

Source:http://linkedlifedata.com/resource/pubmed/id/15687715

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2005-2-2
pubmed:abstractText
It has been reported that in epithelial cancer invasion, most matrix metalloproteinases (MMPs) are made by stromal cells of the host, and not the neoplasm itself. Findings from several laboratories indicate that immune cell-derived MMPs may be advantageous to developing tumors by promoting angiogenesis, neoplastic cell proliferation, and progression to malignancy. We have found a dramatic up-regulation of MMP-9 secretion by splenic and tumor-infiltrating T lymphocytes from D1-DMBA-3 mammary tumor-bearing mice compared to T cells from normal animals. Furthermore, tumor-derived vascular endothelial growth factor induced the up-regulation of MMP-9 in T cells, corroborating the suggestion that tumor cells may "conscript" inflammatory cells to make contributions to the tumor phenotype. Some investigators propose that the resulting degradation of the extracellular matrix by lymphocyte-derived proteases might be used by tumor cells to establish a blood supply and to metastasize. The outcome of MMP activity in the tumor microenvironment may be dependent on a variety of factors including tumor phenotype; the presence of other proteases and cytokines; and the time, level, and site of MMP production. In light of recent findings that MMPs are also capable of generating anti-angiogenic molecules, further investigation will bear out whether inflammatory cell-derived MMPs are friend or foe to developing tumors.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0888-6008
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
145-53
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
T cell-derived matrix metalloproteinase-9 in breast cancer: friend or foe?
pubmed:affiliation
Department of Biomedical Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review