Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2008-7-7
pubmed:abstractText
Platelet-derived endothelial cell growth-factor (PD-ECGF) is similar to the pyrimidine enzyme thymidine phosphorylase (TP). A high TP expression at tumor sites is correlated with tumor growth, induction of angiogenesis, and metastasis. Therefore, high TP is most likely associated with a poor prognosis. TP is not only expressed in tumor cells but also in tumor surrounding tissues, such as tumor infiltrating macrophages. TP catalyzes the conversion of thymidine to thymine and doxyribose-1-phosphate (dR-1-P). The latter in its parent form or in its sugar form, deoxyribose (dR) may play a role in the induction of angiogenesis. It may modulate cellular energy metabolism or be a substrate in a chemical reaction generating reactive oxygen species. L-deoxyribose (L-dR) and thymidine phosphorylase inhibitor (TPI) can reverse these effects. The mechanism of TP induction is not yet completely clear, but TNF, IL10 and other cytokines have been clearly shown to induce its expression. The various complex interactions of TP give it an essential role in cellular functioning and, hence, it is an ideal target in cancer therapy.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1532-2335
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
681-91
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
The role of platelet-derived endothelial cell growth factor/thymidine phosphorylase in tumor behavior.
pubmed:affiliation
Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands.
pubmed:publicationType
Journal Article, Review