Appraising growth differentiation factor 15 as a promising biomarker in digestive system tumors: a meta-analysis

BMC Cancer
Yanqiu WangShuijing Gu

Abstract

Previous studies have highlighted cytokine growth differentiation factor 15 (GDF-15) as a potential biomarker for digestive system tumors (DST). This study sought to assess the feasibility of using GDF-15 as a diagnostic and prognostic biomarker in DST. Eligible studies from multiple online databases were reviewed. Meta-analyses of diagnostic parameters were carried out using standard statistical methods. Study-specific hazard ratios (HRs) with 95% confidence intervals (CIs) were calculated to estimate the strength of the relationship between GDF-15 levels and clinical prognosis. We identified 17 eligible studies comprising 3966 patients with DST. The sensitivity, specificity, and area under the curve (AUC) for the discriminative performance of GDF-15 as a diagnostic biomarker were 0.74 (95% CI: 0.68-0.80), 0.83 (95% CI: 0.75-0.89), and 0.84, respectively. Moreover, increased GDF-15 expression levels were markedly associated with unfavorable overall survival (OS) in patients with DST (HR = 2.34, 95% CI: 2.03-2.70, P < 0.001; I2 = 0.0%) and colorectal cancer (CRC) (HR = 2.27, 95% CI: 1.96-2.63, P < 0.001; I2 = 0.0%). Stratification by cancer type, test matrix, ethnicity, and cut-off setting also illustrated the robustness of the...Continue Reading

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BETA
ELISA
enzyme linked immunosorbent assay

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Engauge Digitizer
Ovid
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