RGD Reference Report - Significance of thymidine phosphorylase/platelet-derived endothelial cell growth factor in carcinoma of the papilla of Vater. - Rat Genome Database

Send us a Message



Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   

Significance of thymidine phosphorylase/platelet-derived endothelial cell growth factor in carcinoma of the papilla of Vater.

Authors: Zhao, B  Kimura, W  Futakawa, N  Abe, H  Kitayama, J  Nagawa, H  Makuuchi, M 
Citation: Zhao B, etal., Jpn J Cancer Res. 2000 Mar;91(3):331-6.
RGD ID: 2325158
Pubmed: PMID:10760693   (View Abstract at PubMed)
PMCID: PMC5926371   (View Article at PubMed Central)

The expression of thymidine phosphorylase (TP) in carcinoma of the papilla of Vater was studied to clarify its significance in tumor progression and in determining prognosis. Fifty-nine cases of surgically resected carcinoma of the papilla of Vater were studied. Immunohistochemical staining was performed to evaluate the expression of TP, microvessel count and p53 overexpression. TP expression was demonstrated in tumor cells in 62.7% (37/59) of the cases. A higher frequency of regional lymph node metastasis was found in TP-positive tumors than in TP-negative tumors (P = 0.006). TP-positive tumors were more advanced than TP-negative tumors with regard to clinical stage (P = 0.035). TP-positive tumors had significantly higher microvessel density (27.6 +/- 10.1) than TP-negative tumors (20.4 +/- 10.0, P = 0.01). Moreover, TP expression was significantly correlated with a poor prognosis (P = 0. 02). These suggest that in carcinoma of the papilla of Vater, TP production by tumor cells is correlated with tumor progression through its regulatory effect on neovascularization.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
TYMPHumancommon bile duct neoplasm disease_progressionIEP  RGD 
TympRatcommon bile duct neoplasm disease_progressionISOTYMP (Homo sapiens) RGD 
TympMousecommon bile duct neoplasm disease_progressionISOTYMP (Homo sapiens) RGD 

Objects Annotated

Genes (Rattus norvegicus)
Tymp  (thymidine phosphorylase)

Genes (Mus musculus)
Tymp  (thymidine phosphorylase)

Genes (Homo sapiens)
TYMP  (thymidine phosphorylase)


Additional Information