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Background

At present, no study has compared the correlation between SULF2, WRN promoter methylation and clinicopathological parameters of patients with gastric cancer and the sensitivity to irinotecan (CPT-11).

Methods

We collected 102 fresh tumor tissues from pathologically diagnosed gastric carcinoma patients. Methylation specific PCR was used to detect the promoter methylation of SULF2 and WRN. The chemosensitivity of irinotecan to gastric tumor was tested by MTT. Then we compared the chemosensitivity difference of the methylated group with unmethylated group.

Results

The rates of SULF2, WRN methylation were 28.3% (29/102) and 23.6% (24/102), separately. Patients with SULF2 methylation were more sensitive to CPT-11 than those without SULF2 methylation (P < 0.01). Patients with both SULF2 and WRN methylation were also more sensitive to CPT-11 than others (P < 0.05).

Conclusion

SULF2 and WRN promoter methylation detection indicates potential predictive biomarkers to identify and target the most sensitive gastric cancer subpopulation for personalized CPT-11 therapy."xsd:string
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http://purl.uniprot.org/citations/24359226http://purl.uniprot.org/core/author"Liu B."xsd:string
http://purl.uniprot.org/citations/24359226http://purl.uniprot.org/core/author"Shen J."xsd:string
http://purl.uniprot.org/citations/24359226http://purl.uniprot.org/core/author"Wang J."xsd:string
http://purl.uniprot.org/citations/24359226http://purl.uniprot.org/core/author"Wang L."xsd:string
http://purl.uniprot.org/citations/24359226http://purl.uniprot.org/core/author"Xie L."xsd:string
http://purl.uniprot.org/citations/24359226http://purl.uniprot.org/core/date"2013"xsd:gYear
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http://purl.uniprot.org/citations/24359226http://purl.uniprot.org/core/title"Correlation between the methylation of SULF2 and WRN promoter and the irinotecan chemosensitivity in gastric cancer."xsd:string
http://purl.uniprot.org/citations/24359226http://purl.uniprot.org/core/volume"13"xsd:string
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