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Article

Elevated NKT cell levels in adults with severe chronic immune thrombocytopenia

  • Authors:
    • Ruilong Xu
    • Zhaojing Zheng
    • Yongjun Ma
    • Yingping Hu
    • Shunhong Zhuang
    • Bin Wei
    • Jianxing Lu
  • View Affiliations / Copyright

    Affiliations: Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China, Department of Laboratory Medicine, Jinhua Hospital of Zhejiang University, Jinhua, Zhejiang 321000, P.R. China, Department of Hematology, Jinhua Hospital of Zhejiang University, Jinhua, Zhejiang 321000, P.R. China
  • Pages: 149-154
    |
    Published online on: November 6, 2013
       https://doi.org/10.3892/etm.2013.1386
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Abstract

The aim of this study was to investigate the frequency of circulating natural killer T (NKT) cells and regulatory T cells (Tregs), as well as serum cytokine profiles, in adult chronic primary immune thrombocytopenia (ITP). The frequency of circulating T cell receptor (TCR) Vα24+Vβ11+CD3+ NKT cells and CD4+CD25+CD127‑/low Tregs was measured using multi‑color flow cytometry. The serum concentrations of 11 cytokines were determined with a cytometric bead assay. The frequency of circulating NKT cells in patients with ITP was 0.13±0.03%, whereas the frequency in healthy controls was 0.07±0.01% of CD3+ (P>0.05). However, the frequency of NKT cells in patients with ITP with platelet counts ≤20x109/l (0.22±0.05%) was significantly higher than that in patients with platelet counts >20x109/l (0.05±0.01%; P<0.05) and that in healthy controls (0.07±0.01%; P<0.05). The frequency of peripheral Tregs was comparable between patients with ITP (3.97±0.44% of CD4+) and healthy controls (3.69±0.31%; P>0.05). No significant differences were observed in the serum concentrations of 11 cytokines between patients with ITP and healthy controls, despite the fact that the serum levels of interleukin (IL)‑12p70, IL‑8, IL‑4, interferon (IFN)‑γ and tumor necrosis factor (TNF)‑α in patients with ITP were higher than those in the healthy controls. The platelet count was negatively correlated with the frequency of circulating NKT cells in chronic ITP. These results indicate that NKT cells may be involved in ITP with severe thrombocytopenia, and NKT and Tregs may be important in cytokine deregulation in chronic ITP.
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Copy and paste a formatted citation
Spandidos Publications style
Xu R, Zheng Z, Ma Y, Hu Y, Zhuang S, Wei B and Lu J: Elevated NKT cell levels in adults with severe chronic immune thrombocytopenia. Exp Ther Med 7: 149-154, 2014.
APA
Xu, R., Zheng, Z., Ma, Y., Hu, Y., Zhuang, S., Wei, B., & Lu, J. (2014). Elevated NKT cell levels in adults with severe chronic immune thrombocytopenia. Experimental and Therapeutic Medicine, 7, 149-154. https://doi.org/10.3892/etm.2013.1386
MLA
Xu, R., Zheng, Z., Ma, Y., Hu, Y., Zhuang, S., Wei, B., Lu, J."Elevated NKT cell levels in adults with severe chronic immune thrombocytopenia". Experimental and Therapeutic Medicine 7.1 (2014): 149-154.
Chicago
Xu, R., Zheng, Z., Ma, Y., Hu, Y., Zhuang, S., Wei, B., Lu, J."Elevated NKT cell levels in adults with severe chronic immune thrombocytopenia". Experimental and Therapeutic Medicine 7, no. 1 (2014): 149-154. https://doi.org/10.3892/etm.2013.1386
Copy and paste a formatted citation
x
Spandidos Publications style
Xu R, Zheng Z, Ma Y, Hu Y, Zhuang S, Wei B and Lu J: Elevated NKT cell levels in adults with severe chronic immune thrombocytopenia. Exp Ther Med 7: 149-154, 2014.
APA
Xu, R., Zheng, Z., Ma, Y., Hu, Y., Zhuang, S., Wei, B., & Lu, J. (2014). Elevated NKT cell levels in adults with severe chronic immune thrombocytopenia. Experimental and Therapeutic Medicine, 7, 149-154. https://doi.org/10.3892/etm.2013.1386
MLA
Xu, R., Zheng, Z., Ma, Y., Hu, Y., Zhuang, S., Wei, B., Lu, J."Elevated NKT cell levels in adults with severe chronic immune thrombocytopenia". Experimental and Therapeutic Medicine 7.1 (2014): 149-154.
Chicago
Xu, R., Zheng, Z., Ma, Y., Hu, Y., Zhuang, S., Wei, B., Lu, J."Elevated NKT cell levels in adults with severe chronic immune thrombocytopenia". Experimental and Therapeutic Medicine 7, no. 1 (2014): 149-154. https://doi.org/10.3892/etm.2013.1386
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