Journal
ANNALS OF ONCOLOGY
Volume 21, Issue 1, Pages 78-86Publisher
ELSEVIER
DOI: 10.1093/annonc/mdp280
Keywords
angiogenesis; gastric adenocarcinoma; IL-8; PAR-1; tumor recurrence
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Funding
- National Institutes of Health [5 P30CA14089-271]
- Dhont Family Foundation
- NATIONAL CANCER INSTITUTE [P30CA014089] Funding Source: NIH RePORTER
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Patients and methods: Formalin-fixed paraffin-embedded tissues were obtained from 137 patients with localized gastric cancer at University of Southern California and Memorial Sloan-Kettering Cancer Center medical facilities. DNA was extracted and genotyping was carried out using PCR-restriction fragment length polymorphism-based protocols. Results: In false discovery rate-adjusted univariate analysis, PAR-1 -506 ins/del (P < 0.001), ES +4349 G > A (P = 0.004), and IL-8 -251 T > A (P < 0.0001) were associated with time to tumor recurrence (TTR). Further, PAR-1 -506 ins/del and IL-8 -251 were associated with overall survival (OS). After adjusting for covariates, IL-8 remained significantly associated with TTR (adjusted P = 0.003) and OS (adjusted P = 0.049), whereas ES was significantly associated with TTR (adjusted P = 0.026). Conclusions: Polymorphisms in PAR-1, ES, and IL-8 may serve as independent molecular prognostic markers in patients with localized gastric adenocarcinoma. The assessment of the patients' individual risk on the basis of interindividual genotypes may therefore help to identify patient subgroups at high risk for poor clinical outcome.
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