• J. Cell. Mol. Med. · Jun 2018

    Effect of the in vivo application of granulocyte colony-stimulating factor on NK cells in bone marrow and peripheral blood.

    • Xing-Xing Yu, Ting-Ting Han, Ling-Ling Xu, Ying-Jun Chang, Xiao-Jun Huang, and Xiang-Yu Zhao.
    • Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China.
    • J. Cell. Mol. Med. 2018 Jun 1; 22 (6): 3025-3034.

    AbstractGranulocyte colony-stimulating factor (G-CSF) has been widely used in the field of allogeneic haematopoietic stem cell transplantation (allo-HSCT) for priming donor stem cells from the bone marrow (BM) to peripheral blood (PB) to collect stem cells more conveniently. Donor-derived natural killer (NK) cells have important antitumour functions and immune regulatory roles post-allo-HSCT. The aim of this study was to evaluate the effect of G-CSF on donors' NK cells in BM and PB. The percentage of NK cells among nuclear cells and lymphocyte was significantly decreased and led to increased ratio of T and NK cells in BM and PB post-G-CSF in vivo application. Relative expansion of CD56bri NK cells led to a decreased ratio of CD56dim and CD56bri NK subsets in BM and PB post-G-CSF in vivo application. The expression of CD62L, CD54, CD94, NKP30 and CXCR4 on NK cells was significantly increased in PB after G-CSF treatment. G-CSF treatment decreased the IFN-γ-secreting NK population (NK1) dramatically in BM and PB, but increased the IL-13-secreting NK (NK2), TGF-β-secreting NK (NK3) and IL-10-secreting NK (NKr) populations significantly in BM. Clinical data demonstrated that higher doses of NK1 infused into the allograft correlated with an increased incidence of chronic graft-vs-host disease post-transplantation. Taken together, our results show that the in vivo application of G-CSF can modulate NK subpopulations, leading to an increased ratio of T and NK cells and decreased ratio of CD56dim and CD56bri NK cells as well as decreased NK1 populations in both PB and BM.© 2018 The Authors. Journal of Cellular and Molecular Medicine published by John Wiley & Sons Ltd and Foundation for Cellular and Molecular Medicine.

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