ArticleJournal of gastrointestinal cancer2008
Expression of COX-2 in stomach carcinogenesis.
Article in Journal of gastrointestinal cancer, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.
- Bcl-2 expression and patient survival in gastric cancer: a systematic review of the literature with meta-analysis.Medical oncology (Northwood, London, England) · 2015Pooled it
- Assessing the Malignant Potential of Gastric Mucosa Disorders: A Pilot Study on Lipid Peroxidation End Products and COX-2 Detection by Immunohistochemistry.Molecular carcinogenesis · 2026Article
- Synthesis and Anti-Inflammatory and Analgesic Potentials of Ethyl 2-(2,5-Dioxo-1-Phenylpyrrolidin-3-yl)-2-Methylpropanoate.Pharmaceuticals (Basel, Switzerland) · 2024Article
- C/EBPβ regulates homeostatic and oncogenic gastric cell proliferation.Journal of molecular medicine (Berlin, Germany) · 2016Article
- Helicobacter pylori infection, gastrin and cyclooxygenase-2 in gastric carcinogenesis.World journal of gastroenterology · 2014Review
- COX-2 Gene increases tongue cancer cell proliferation and invasion through VEGF-C pathway.Medical oncology (Northwood, London, England) · 2011Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundGastric cancer is a frequent cause of cancer in Brazil. The understanding of gastric carcinogenesis is not completely known but the progress of the molecular biology has provided that the initiation and progression of gastric cancer process is a consequence of a cumulative series of multiple gene alterations.
aimThe aim of the study is to investigate the relationship among cytoplasmatic COX-1 and COX-2, Bcl-2 and nuclear P53 in chronic gastritis, metaplasia, and intestinal and gastric cancer. PATIENTS AND
methodsCOX-1, COX-2, P53, and Bcl-2 were evaluated by immunohistochemistry in 34 gastric adenocarcinoma (GA) tissues obtained from gastric resection, 21 tissues of patients with chronic gastritis (CG), and 34 with intestinal metaplasia (IM) obtained from endoscopic biopsies.
resultsCOX-1 and COX-2 were expressed in more than 85% of the tissues. A correlation between COX-1 and COX-2 were observed (r = 0.66). P53 was positive in 29% CG, 20% of IM and in 59 % of GA. Bcl-2 was negative in all the CG, in 88% of IM, and in 85% of GA. P53 staining was expressed more frequently in gastric cancer when compared to CG (p = 0.05) or IM (p = 0.003). The expression of Bcl-2 was also higher in gastric cancer (p = 0.002) and in intestinal metaplasia (p = 0.04) when compared to CG. There were no difference between metaplasia and chronic gastritis for P53 or Bcl-2. The immunoreactivity of COX-2 in gastric cancer was higher in the intestinal type (58%) than in diffuse type. A higher expression of COX-2 was found in advanced gastric cancer (p = 0.019). P53 was also more frequent in node positive cancer (p = 0.04).
conclusionCOX-2 is probably involved in gastric carcinogenesis, being an early alteration in cancer. Although we observed in this study a correlation between COX-2 and depth of cancer, this association as a prognostic marker is not well defined. P53 and Bcl-2 was expressed mainly in gastric cancer, being probably a latest alteration in gastric development.
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