Linked Life Data

17219436

Source:http://linkedlifedata.com/resource/pubmed/id/17219436

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2007-5-28
pubmed:abstractText
Matrix metalloproteinases (MMP) which degrades protein components of the extra-cellular matrix and basement membrane seems to be largely involved in cancer invasiveness. MMP proteolitic activity essentially comes from stromal cells but matrilysin (MMP-7) is produced by the tumor itself. Thus, MMP-7 is investigated to address the particular invasive behavior of human glioma. Both MMP-7 mRNA and protein were clearly identified in human glioma. MMP-7 mRNA expression was highly variable within our glioma population. When analyzing MMP-7 mRNA expression in different primary brain tumors, we found highly variable levels of expression not related to their invasive behavior. In successive biopsies obtained in the same patients with glioblastoma, MMP-7 mRNA was quantified and appeared variable, but intra-individual variations were lower than inter-individual differences. With a xenograft model of U87 human tumors in RAG2/gamma(c) immune-deficient mice, the strict tumor origin of MMP-7 was shown. Additionally, MMP-7 expression by U87 cells which is low in culture was stimulated by these cells while forming tumors and the level of expression was higher when the tumor cells were implanted within the brain. These data provide some consistent information about cross-talk occurring between the tumor and the surrounding stroma to regulate MMP-7 expression.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0899-1987
pubmed:author
pubmed:copyrightInfo
(c) 2007 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:volume
46
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
446-52
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
MMP-7 (matrilysin) expression in human brain tumors.
pubmed:affiliation
Molecular and Functional Imaging, ERT-CNRS 5543, Université Victor Segalen, Bordeaux, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't