Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
18
pubmed:dateCreated
1994-9-27
pubmed:abstractText
Urokinase-type plasminogen activator receptors (uPARs) play an important role in tumor invasion by localizing degradative enzymes at the invasive zone. In the present study, we examined the presence and distribution of uPARs in human gliomas in vivo. The amounts of uPARs were measured by radioreceptor assays and Northern blotting and were significantly higher in anaplastic astrocytomas and glioblastomas than they were in normal brain tissues and low-grade gliomas. In situ hybridization was performed to investigate the cellular source of uPAR mRNA in various types of astrocytomas and normal brain tissues. uPAR mRNA was localized in astrocytoma cells and endothelial cells within tumor tissue, especially near sites of vascular proliferation and at the leading edges of tumors. uPAR mRNA was also expressed in tumor cells near necrotic areas. Expression was barely detectable in low-grade astrocytomas and normal brain tissues. These results suggest that expression of uPAR in the invading astrocytoma cells may play a significant role in the invasive behaviors of glioblastomas.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
54
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5016-20
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Expression and localization of urokinase-type plasminogen activator receptor in human gliomas.
pubmed:affiliation
Department of Neurosurgery, University of Texas M. D. Anderson Cancer Center, Houston 77030.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't