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Tumor Biology

, Volume 37, Issue 8, pp 10427–10433 | Cite as

The clinical and prognostic significance of CD14+HLA-DR−/low myeloid-derived suppressor cells in hepatocellular carcinoma patients receiving radiotherapy

  • Dong Wang
  • Guangyu An
  • Shengzhi Xie
  • Yajuan Yao
  • Guosheng Feng
Original Article

Abstract

Myeloid-derived suppressor cells (MDSCs) are key player in mediating systemic immunosuppression, and their accumulation and expansion in the periphery and tumor have been iteratively observed in patients with various types of cancer. It has been reported that CD14+HLA-DR−/low MDSCs are increased in hepatocellular carcinoma (HCC) patients; however, the clinical significance of MDSC alteration in HCC patients after treatment is poorly studied. In this study, we examined the frequency of MDSCs in 92 HCC patients, 14 chronic liver disease patients without HCC, and 22 healthy controls by flow cytometric analysis. The associations between the clinical features and the frequency of MDSCs were analyzed. In particular, we further examined the prognostic impact of MDSCs on the overall survival of HCC patients receiving radiation therapy. The frequency of MDSCs in HCC patients was significantly increased and correlated with tumor stage, size, burden, and Child-Pugh classification but not with biochemical parameters of liver function. In HCC patients who received radiation therapy, the frequency of MDSCs after treatment significantly decreased and was inversely correlated with overall survival time. In multivariate analysis, only post-treatment MDSC ratio and Child-Pugh classification were correlated with the prognosis of HCC patients. Patients with a high frequency of MDSCs after radiotherapy should be closely followed, and the inhibition of MDSCs may improve the prognosis of patients.

Keywords

Myeloid-derived suppressor cells Hepatocellular carcinoma Radiation therapy Overall survival 

Notes

Acknowledgments

We thank Yang Yang for his excellent technical assistance in flow cytometry. This work was supported by the Beijing Natural Science Foundation (No. 7133253). The funders had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Compliance with ethical standards

The study protocol was approved by the Ethics Committee of Beijing Chao-Yang Hospital. All participants provided written informed consent.

Conflicts of interest

None

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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2016

Authors and Affiliations

  • Dong Wang
    • 1
    • 2
  • Guangyu An
    • 1
  • Shengzhi Xie
    • 3
  • Yajuan Yao
    • 2
  • Guosheng Feng
    • 1
  1. 1.Department of Oncology, Beijing Chao-Yang HospitalCapital Medical UniversityBeijingChina
  2. 2.Department of OncologyTong-Liao City Hospital of Inner MongoliaTong-LiaoChina
  3. 3.Department of OncologyGeneral Hospital of Chinese People’s Armed Police ForcesBeijingChina

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