Carcinogenesis, Teratogenesis & Mutagenesis ›› 2015, Vol. 27 ›› Issue (6): 454-458.doi: 10.3969/j.issn.1004-616x.2015.06.010

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The change of MDSCs and its clinical significance in childhood B-lineage acute lymphoblastic leukemia during remission

XIONG Shudao, WANG Huiping, PU Lianfang, HU Linhui, ZHANG Cui, YANG Dongdong, ZHAI Zhimin   

  1. Department of Hematology, Hematological Lab, The Second Hospital of Anhui Medical University, Hefei 230601, Anhui, China
  • Received:2015-05-15 Revised:2015-09-02 Online:2015-11-30 Published:2015-11-30

Abstract: OBJECTIVE: To investigate the changes,pofential role and cliniral significance of myeloid derived suppressor cells(MDSCs) in the peripheral blood of pediatric patients with B-lineage acute lymphoblastic leukemia(BALL) during remission. METHODS: 22 patients with B-ALL from our hospital treated by VDLP chemotherapy regimen including vincristine,daunorubicin,L-asparaginase and prednisone were selected as the test group during remission,and 20 cases of healthy children were also selected as control group(age and gender-matched). Peripheral blood(PB) were obtained frompatients and controls. Changes of CD33+ cells,CD33+HLA-DR- cells,CD14+CD33+HLADR- MDSCs and CD15+CD33+HLA-DR- MDSCs were examined by flow cytometry,and analyzed statistically wie software of GraphPad Prisms. RESULTS: We found no change of CD33+ cells between the patients and control group. However,the ratio of CD33+HLA-DR-/CD33+ cells in the patients with B-ALL during remission was lower than that in the healthy control group(P=0.001). The ratio of boe monocyte derived CD14+CD33+HLA-DR- MDSCs(P=0.001) and CD15+CD33+HLA-DR- MDSCs derived from granulocytes were lower in the healthy control group(P=0.004). CONCLUSION: MDSCs in pediatric patients with B-ALL treated by VDLP regimen during remission was often lower when compared to healthy control,the low level of MDSCs in B-ALL may be associated wie normal immunological system not recovered completely in the remission phase.

Key words: leukemia, acute leukemia, B-ALL, chemotherapy, myeloid derived suppressor cells

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