Relationship of c-kit and platelet-derived growth factor receptor alpha gene mutation features with prognosis of patients with gastrointestinal stromal tumor / 中华胃肠外科杂志
Chinese Journal of Gastrointestinal Surgery
;
(12): 271-275, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-290804
ABSTRACT
<p><b>OBJECTIVE</b>To explore the relationship between c-kit and platelet-derived growth factor receptor alpha(PDGFRA) gene mutation features and the prognosis of gastrointestinal stromal tumor(GIST).</p><p><b>METHODS</b>Clinicopathological, genetic testing and follow-up informations of patients admitted to the Shanxi Tumor Hospital from June 2000 to January 2009 were collected. The survival was calculated and univariate analysis was conducted using the Kaplan-Meier method. Multivariate analysis was conducted by the Cox regression method.</p><p><b>RESULTS</b>The 5-year disease-free survival rate was 61.5% and the 5-year overall survival rate was 67.4%. The 5-year disease-free survival rates of patients without disease among those with c-kit exon 11 mutation (n=77), c-kit exon 9 mutation(n=4), and PDGFRA exon 18 mutation (n=2) were 63.4%, 14.3% and 100%, and the 5-year overall survival rates were 70.8%, 50.0% and 100%, respectively. In the patients with c-kit exon 11 mutation, the 5-year disease-free survival rates among those with point mutations(n=26), deletion mutations(n=44), and duplication mutations(n=7) were 87.1%, 44.9% and 80.0%, and the 5-year overall survival rates were 88.1%, 57.0% and 100%, respectively. There were significant differences in overall survival among different factors. Multivariate analysis showed that gene mutation was not the independent factor of prognosis(P=0.492).</p><p><b>CONCLUSIONS</b>In GIST patients undergoing surgery without imatinib treatment, mutated genotype is better than wild type in terms of prognosis. Gene mutation is not the independent factor of prognosis in GIST patients.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Prognosis
/
General Surgery
/
DNA Mutational Analysis
/
Follow-Up Studies
/
Proto-Oncogene Proteins c-kit
/
Receptor, Platelet-Derived Growth Factor alpha
/
Gastrointestinal Stromal Tumors
/
Genetics
/
Mutation
Type of study:
Observational study
/
Prognostic study
Limits:
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Gastrointestinal Surgery
Year:
2012
Type:
Article
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