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Meta-Analysis
. 2019 May 23;66(3):470-480.
doi: 10.4149/neo_2018_181009N753. Epub 2019 Mar 7.

APC Promoter Methylation Is Correlated With Development and Progression of Bladder Cancer, but Not Linked to Overall Survival: A Meta-Analysis

Affiliations
Meta-Analysis

APC Promoter Methylation Is Correlated With Development and Progression of Bladder Cancer, but Not Linked to Overall Survival: A Meta-Analysis

Z J Bai et al. Neoplasma. .

Abstract

The clinical role of APC promoter methylation in patients with bladder cancer remains to be determined. The relevant databases (PubMed, EMBASE, EBSCO, Wangfang, CNKI and Cochrane Library) were searched to get eligible studies. The overall odds ratios (ORs) and the corresponding 95% confidence intervals (95% CIs) were calculated to assess the effects of APC promoter methylation on bladder cancer risk and clinicopathological features. 2214 patients with bladder cancer and 665 controls were identified. APC promoter methylation was significantly higher in bladder cancer than in nonmalignant tissue and urine samples (tissue: OR = 11.14, 95% CI = 4.29-28.91, P < 0.001; urine: OR = 24.31, 95% CI = 6.26-94.38, P < 0.001), but not in blood samples (P = 0.242). The relationship was observed between APC promoter methylation and gender (male vs. female: OR = 1.46, 95% CI = 0.96-2.22, P = 0.074), tumor stage (stage T2-T4 vs. Ta-T1: OR = 3.00, 95% CI = 1.66-5.42, P < 0.001), and tumor grade (grade 3-4 vs. grade 1-2: OR = 1.99, 95% CI = 1.15-3.42, P = 0.013). But no correlation was found between APC promoter methylation and age, lymph node status, and tumor number (P > 0.1). APC gene was not associated with overall survival of bladder cancer. Our findings indicate that APC promoter methylation may be associated with the development and progression of bladder cancer and may serve as a promising noninvasive biomarker using urine samples for the detection of bladder cancer.

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