Journal
FUTURE ONCOLOGY
Volume 15, Issue 16, Pages 1873-1894Publisher
FUTURE MEDICINE LTD
DOI: 10.2217/fon-2018-0335
Keywords
clinicopathological feature; gastric cancer; mutation; PIK3CA; prognosis
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Funding
- National Natural Science Foundation of China [81472940]
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Aim: The clinical implications of PIK3CA mutations in gastric cancer (GC) are not conclusive. Materials & methods: A systematic searching of the previous publications and related studies in The Cancer Genome Atlas (TCGA) database were performed to investigate the clinical implications of PIK3CA mutations in GC. Results: Twenty-six independent cohort studies including six studies with original data were identified. Meta-analysis suggested PIK3CA mutations were associated with high T stage, poor differentiation and microsatellite instability, but not with prognosis in overall. However, PIK3CA mutation was found to be associated with favorable overall survival in subgroup of patients with low PIK3CA mutation prevalence. Conclusion:PIK3CA mutations might be involved in GC development and might be used as favorable prognostic factor in GC population with low PIK3CA mutations prevalence.
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