Thymidine phosphorylase expression in gastric carcinoma as a marker for metastasis.

Abstract:

BACKGROUND:Thymidine phosphorylase (dThdPase) is identical to platelet-derived endothelial cell growth factor (PD-ECCF) and has a function of angiogenesis in vitro and in several types of human carcinoma tissues. We have reported that expression of dThdPase was an independent prognostic factor in 116 gastric carcinomas by immunohistochemical analysis. MATERIALS AND METHODS:In the present study, we updated the analysis of recurrence in 116 patients with gastric carcinomas to find how dThdPase plays an important role in progression of gastric carcinoma. RESULTS:Expression of dThdPase was significantly involved in the progression and metastasis of gastric carcinoma. Further, the proportion of recurrence of the patients with dThdPase-positive gastric carcinoma (23 out of 50, 46.0%) was significantly higher than that with -negative gastric carcinoma (5 out of 66, 7.6%) (p < 0.05). Interestingly, the proportion of hematogenous metastasis (liver, lung) of the patients with dThdPase-positive gastric carcinoma (8 out of 8, 100%) was significantly higher than that with -negative gastric carcinoma (0 out of 8, 0%)) (p < 0.05). The proportion of peritoneal metastasis of the patients with dThdPase-positive gastric carcinoma (10/13, 76.9%) was also significantly higher than that with -negative gastric carcinoma (3 out of 13, 23.1%)) (p < 0.05). CONCLUSION:These findings suggested that dThdPase promotes hematogenous and peritoneal metastases in gastric carcinoma. Inhibition of dThdPase may suppress hematogenous and peritoneal metastases in gastric carcinoma and improve prognosis of patients with gastric carcinoma.

journal_name

Anticancer Res

journal_title

Anticancer research

authors

Konno S,Takebayashi Y,Higashimoto M,Katsube T,Kanzaki A,Kawahara M,Takenoshita S,Aiba M,Ogawa K

subject

Has Abstract

pub_date

2003-11-01 00:00:00

pages

5011-4

issue

6D

eissn

0250-7005

issn

1791-7530

journal_volume

23

pub_type

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