Relationships between PTEN gene mutations and prognosis in glioma: a meta-analysis

We conducted a meta-analysis in order to investigate the relationships between PTEN gene mutations and the prognosis in glioma. The following electronic databases were searched for relevant articles without any language restrictions: Web of Science (1945 ~ 2013), the Cochrane Library Database (Issue...

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Bibliographic Details
Published in:Tumor biology 2014-07, Vol.35 (7), p.6687-6693
Main Authors: Xiao, Wei-Zhong, Han, Dong-Hua, Wang, Fei, Wang, Yong-Qian, Zhu, You-Hou, Wu, Yi-Fang, Liu, Ning-Tao, Sun, Ji-Yong
Format: Article
Language:English
Subjects:
Brain cancer
Brain Neoplasms - genetics
Brain Neoplasms - pathology
Genetic Predisposition to Disease
Glioma - genetics
Glioma - pathology
Humans
Medical prognosis
Meta-analysis
Mutation
Prognosis
PTEN Phosphohydrolase - genetics
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Summary:We conducted a meta-analysis in order to investigate the relationships between PTEN gene mutations and the prognosis in glioma. The following electronic databases were searched for relevant articles without any language restrictions: Web of Science (1945 ~ 2013), the Cochrane Library Database (Issue 12, 2013), PubMed (1966 ~ 2013), EMBASE (1980 ~ 2013), CINAHL (1982 ~ 2013), and the Chinese Biomedical Database (CBM) (1982 ~ 2013). Meta-analyses were conducted using the STATA software (Version 12.0, Stata Corporation, College Station, Texas USA). Hazard ratio (HR) with its corresponding 95 % confidence interval (95%CI) was calculated. Six independent cohort studies with a total of 357 glioma patients met our inclusion criteria. Our meta-analysis results indicated that glioma patients with PTEN gene mutations exhibited a significantly shorter overall survival (OS) than those without PTEN gene mutations (HR = 3.66, 95%CI = 2.02 ~ 5.30, P < 0.001). Ethnicity-stratified subgroup analysis demonstrated that PTEN gene mutations were closely linked to poor prognosis in glioma among Americans (HR = 3.72, 95%CI = 1.72 ~ 5.73, P < 0.001), while similar correlations were not observed among populations in Sweden, Italy, and Malaysia (all P > 0.05). Our meta-analysis provides direct and strong evidences for the speculation of PTEN gene mutations' correlation with poor prognosis of glioma patients.
ISSN:1010-4283
1423-0380
DOI:10.1007/s13277-014-1885-1