Prognostic role of chromodomain helicase DNA binding protein 1-like protein in human solid cancers: A meta-analysis

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Background:Chromodomain helicase DNA binding protein 1-like (CHD1L) played vital roles in tumorigenesis and development. Its aberrant expression was reported to be related to progression and prognosis in various tumors. However, no consensus on the prognostic value of CHD1L protein has been made. This meta-analysis was aimed to assess the clinical significance of CHD1L protein in human solid tumors.Methods:Web of Science, PubMed, Embase, China National Knowledge Infrastructure (CNKI), and Wanfang databases were extensively searched to retrieve publications that reported the association between CHD1L expression and cancer prognosis. Hazard ratios (HRs) or odds ratios (ORs) with their 95% confidence intervals (95% CIs) were applied to assess the strength of the associations through Stata statistical software version 12.0 or Revman software 5.3, respectively.Result:A total of 14 studies were screened according to the inclusion criteria. The pooled results revealed patients with higher CHD1L expression manifested with decreased overall survival (OS) (HR: 1.59, 95% CI: 1.29–1.89, P < .001) and poorer disease-free survival (DFS) (HR: 1.66, 95% CI: 1.17–2.15, P < .001). The prognostic value of CHD1L protein for OS was further confirmed by performing subgroup meta-analysis. Furthermore, the pooled results revealed a positive correlation of CHD1L protein expression with tumor depth (OR: 1.87, 95% CI: 1.48–2.37), lymph node metastasis (OR: 1.46, 95% CI: 1.01–2.11), and distant metastasis (OR: 1.86, 95% CI: 1.45–2.38).Conclusion:CHD1L overexpression was associated with poor prognosis and advanced clinicopathological features, CHD1L may be a valuable biomarker for prognostication of cancer patients.

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