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Ref Type Journal Article
PMID (23703248)
Authors Xing X, Cai W, Shi H, Wang Y, Li M, Jiao J, Chen M
Title The prognostic value of CDKN2A hypermethylation in colorectal cancer: a meta-analysis.
Journal British journal of cancer
Vol 108
Issue 12
Date 2013 Jun 25
URL
Abstract Text The prognostic value of CDKN2A promoter hypermethylation in colorectal cancer remains controversial. We systematically reviewed the evidence for assessment of CDKN2A methylation in colorectal cancer to elucidate this issue.Pubmed, Embase and ISI web of knowledge were searched to identify eligible studies to evaluate the association of CDKN2A hypermethylation and overall survival and clinicopathological features of colorectal cancer patients. Combined hazard ratios (HRs) or odds ratios (ORs) with 95% confidence interval (95% CI) were pooled using a random-effects model.A total of 11 studies encompassing 3440 patients were included in the meta-analysis. CDKN2A hypermethylation had an unfavourable impact on OS of patients with colorectal cancer (HR 1.65, 95% CI 1.29-2.11). Subgroup analysis indicated that CDKN2A hypermethylation was significantly correlated with OS in Europe (HR 1.49; 95% CI 1.28-1.74) and Asia (HR 3.30; 95% CI 1.68-6.46). Furthermore, there was a significant association between CDKN2A hypermethylation and lymphovascular invasion (OR 1.68, 95% CI 1.15-2.47), lymph node metastasis (OR 1.68, 95% CI 1.09-2.59) and proximal tumour location (OR 2.09, 95% CI 1.34-3.26) of colorectal cancer.This meta-analysis indicated that CDKN2A hypermethylation might be a predictive factor for unfavourable prognosis of colorectal cancer patients.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
CDKN2A hypermethylation colorectal cancer not applicable N/A Clinical Study - Meta-analysis Prognostic In a meta-analysis, CDKN2A promoter hypermethylation was associated with poor overall survival (HR=1.65, 95% CI 1.29-2.11), lymphovascular invasion (OR=1.68, 95% CI 1.15-2.47), and lymph node metastasis (OR=1.68, 95% CI 1.09-2.59) in colorectal cancer patients, and correlated significantly with poor overall survival in patients from Europe (HR=1.49, 95% CI 1.28-1.74) and Asia (HR=3.30, 95% CI 1.68-6.46) (PMID: 23703248). 23703248