RRC ID 38238
著者 Tatsuwaki H, Tanigawa T, Watanabe T, Machida H, Okazaki H, Yamagami H, Shiba M, Watanabe K, Tominaga K, Fujiwara Y, Oshitani N, Muguruma K, Sawada T, Hirakawa K, Higuchi K, Arakawa T.
タイトル Reduction of 15-hydroxyprostaglandin dehydrogenase expression is an independent predictor of poor survival associated with enhanced cell proliferation in gastric adenocarcinoma.
ジャーナル Cancer Sci
Abstract Prostaglandin (PG) E(2) promotes gastrointestinal carcinogenesis and tumor progression. We determined the correlations between pattern of expression of 15-hydroxyprostaglandin dehydrogenase (15-PGDH), a catabolic enzyme for biological inactivation of PGE(2), in gastric adenocarcinoma and various clinicopathological factors and patient outcome in an attempt to elucidate its biological significance. In 35 of 71 cases of gastric adenocarcinoma, expression of 15-PGDH protein was reduced in tumor tissues. Multivariate analysis revealed reduction of 15-PGDH expression to be an independent predictor of poor survival. The proportion of Ki67-positive cells in 15-PGDH-negative adenocarcinoma was higher than that in 15-PGDH-positive adenocarcinoma. No differences were found in clinicopathological parameters between patients with cyclooxygenase-2 (COX-2)-positive tumors and those with COX-2 negative tumors. In an in vitro study, use of specific siRNA to silence 15-PGDH or a specific inhibitor of 15-PGDH enhanced cell proliferation in the gastric cancer cell line AGS, which expresses 15-PGDH. These findings suggest that reduction of 15-PGDH is an independent predictor of poor survival associated with enhancement of cell proliferation in gastric adenocarcinoma.
巻・号 101(2)
ページ 550-8
公開日 2010-2-1
DOI 10.1111/j.1349-7006.2009.01390.x
PII CAS1390
PMID 19917058
MeSH Adenocarcinoma / enzymology* Adenocarcinoma / mortality Adenocarcinoma / pathology Adult Aged Aged, 80 and over Cell Proliferation Cyclooxygenase 2 / analysis Dinoprostone / metabolism Female Humans Hydroxyprostaglandin Dehydrogenases / analysis* Ki-67 Antigen / analysis Male Middle Aged Stomach Neoplasms / enzymology* Stomach Neoplasms / mortality Stomach Neoplasms / pathology
IF 4.966
引用数 25
WOS 分野 ONCOLOGY
リソース情報
ヒト・動物細胞 MKN7(RCB0999) MKN45(RCB1001)