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Published in: Cancer Chemotherapy and Pharmacology 5/2009

01-10-2009 | Original Article

Prostaglandin synthase 2/cyclooxygenase 2 (PTGS2/COX2) 8473T>C polymorphism associated with prognosis for patients with colorectal cancer treated with capecitabine and oxaliplatin

Authors: Jong Gwang Kim, Yee Soo Chae, Sang Kyun Sohn, Joon Ho Moon, Hun Mo Ryoo, Sung Hwa Bae, YoonSeop Kum, Seong Woo Jeon, Kyoung-Hoon Lim, Byung-Mo Kang, In-Ja Park, Gyu Seog Choi, Soo-Han Jun

Published in: Cancer Chemotherapy and Pharmacology | Issue 5/2009

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Abstract

Purpose

The present study analyzed the polymorphisms of apoptosis-related genes and their impact on the response to chemotherapy and survival of patients with colorectal cancer.

Patients and methods

A total of 76 patients with recurrent or metastatic colorectal cancer treated with capecitabine and oxaliplatin (XELOX) combination chemotherapy were enrolled in the present study. The single nucleotide polymorphisms of 15 apoptosis-related genes (TP53, BCL2L, TNFRSF10B, AKT1, PTGS2/COX2, BID, RIPK1, FAS, FASL, caspase 3, and caspase 6-10) were determined using a PCR-RFLP assay.

Results

No significant association between the polymorphisms and the response was found for any of the genes analyzed. However, the T/T genotype of PTGS2 8473T>C (rs5275) was significantly correlated with a better progression-free survival (PFS) and overall survival (OS) when compared to the combined T/C and C/C genotype (Hazard ratio [HR] = 0.47; P value = 0.046 and HR = 0.16; P = 0.013, respectively) in a multivariate analysis adjusted for age, sex, performance status, disease status and curative resection. No association was noted between the other polymorphisms and survival.

Conclusion

The PTGS2 8473T>C polymorphism was found to be correlated with PFS and OS in patients with advanced colorectal cancer treated with XELOX chemotherapy.
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Metadata
Title
Prostaglandin synthase 2/cyclooxygenase 2 (PTGS2/COX2) 8473T>C polymorphism associated with prognosis for patients with colorectal cancer treated with capecitabine and oxaliplatin
Authors
Jong Gwang Kim
Yee Soo Chae
Sang Kyun Sohn
Joon Ho Moon
Hun Mo Ryoo
Sung Hwa Bae
YoonSeop Kum
Seong Woo Jeon
Kyoung-Hoon Lim
Byung-Mo Kang
In-Ja Park
Gyu Seog Choi
Soo-Han Jun
Publication date
01-10-2009
Publisher
Springer-Verlag
Published in
Cancer Chemotherapy and Pharmacology / Issue 5/2009
Print ISSN: 0344-5704
Electronic ISSN: 1432-0843
DOI
https://doi.org/10.1007/s00280-009-0947-3

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