The prognostic value of myeloid derived suppressor cell level in hepatocellular carcinoma: A systematic review and meta-analysis

Autoři: Xinyu Zhang aff001;  Xin Fu aff001;  Tianyu Li aff001;  Huimin Yan aff002
Působiště autorů: Graduate College of Hebei Medical University, Hebei Medical University, Shijiazhuang, Hebei, China aff001;  Clinical Research Center, Shijiazhuang Fifth Hospital, Shijiazhuang, Hebei, China aff002
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article


Background and aims

Many studies have investigated the association between the level of myeloid derived suppressor cells (MDSCs) and clinical features and prognosis of hepatocellular carcinoma (HCC), but the results remain controversial. This systematic review and meta-analysis was conducted to summarize all available data and estimate the relationship.


A comprehensive literature review was carried out using Medline, Embase and Web of Science database through December 2018 to identify relevant studies. The standardized mean difference (SMD) and the hazard ratio (HR) with 95% confidence interval (CI) were utilized for evaluating continuous outcomes and survival analysis, respectively. All statistical analyses were performed by STATA 14.0 software.


A total of 13 studies with 1002 HCC patients were included in the meta-analysis. Overall, the proportion of MDSCs in HCC patients was higher than that in healthy controls (SMD = 4.49, 95% CI = 2.53–6.46, P<0.001), and patients with chronic liver disease (SMD = 3.41, 95% CI = 1.58–5.24, P<0.001). Subgroup analysis based on the phenotypes of MDSCs and geographical areas showed similar results. However, the frequency of MDSCs was not affected by the treatment with conventional approaches for HCC (SMD = -0.25, 95% CI = -0.57–0.06, P = 0.119). Moreover, increased MDSCs level was significantly associated with poorer overall survival (HR = 2.36, 95% CI = 1.70–3.29, P<0.001) and recurrence-free survival (HR = 2.72, 95% CI = 1.70–4.35, P<0.001), but not significantly correlated with any clinicopathological parameters.


The results of this systematic review suggest that elevated MDSCs level appears to be associated with an increased risk for disease progression and poor prognosis for HCC.

Klíčová slova:

Cancer treatment – Database searching – Fluorescence-activated cell sorting – Hepatocellular carcinoma – Chronic liver disease – Prognosis – Publication ethics


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2019 Číslo 12
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