Effect of thymosin α1 on the phenotypic and functional maturation of dendritic cells from children with acute lymphoblastic leukemia

  • Authors:
    • Xuerong Li
    • Xiaodan Liu
    • Yanxia Zhao
    • Ren Zhong
    • Aiqin Song
    • Lirong Sun
  • View Affiliations

  • Published online on: July 30, 2015     https://doi.org/10.3892/mmr.2015.4153
  • Pages: 6093-6097
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Abstract

To determine the effect of thymosin α1 (Tα1) on the phenotypic and functional maturation of HL‑60 cells, freeze‑thaw antigen‑loaded dendritic cells (DCs) were derived from peripheral blood mononuclear cells (PBMCs) of children with acute lymphoblastic leukemia (ALL). The DCs were generated from the PBMC samples that were collected from the PB of 10 consecutive ALL children. On day 3 of culturing, the cells in the antigen + no Tα1 (AN) and antigen + Tα1 (AT) groups were incubated with 100 µl lysates obtained from freeze‑thaw cycling. After 5 days of incubation, the AT group was administered with 100 ng/ml Tα1. On day 8, the DCs were stained with fluorescein isothiocyanate‑conjugated cluster of differentiation (CD)1a, CD83 and HLA‑DR antibodies and analyzed by flow cytometry. In addition, the killing activity of cytotoxic T lymphocytes (CTLs) from the different groups on wild‑type leukemia cells was measured. The DCs in the AT group exhibited more apparent, characteristic dendritic morphologies than the control and AN group DCs. Furthermore, the lowest expression level of CD1a, and the highest expression of CD83 and HLA‑DR were observed in the AT group when compared with the AN and control groups (P<0.05). The lactate dehydrogenase release assay demonstrated that the killing rate of CTL in the AT group was significantly higher than that in the control and AN groups (P<0.01). Thus, Tα1 may markedly promote the phenotypic and functional maturation of DCs, and may serve as a suitable immunomodulator of DC‑based immunotherapy for treatment of hematological malignancies.
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October-2015
Volume 12 Issue 4

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Li X, Liu X, Zhao Y, Zhong R, Song A and Sun L: Effect of thymosin α1 on the phenotypic and functional maturation of dendritic cells from children with acute lymphoblastic leukemia. Mol Med Rep 12: 6093-6097, 2015
APA
Li, X., Liu, X., Zhao, Y., Zhong, R., Song, A., & Sun, L. (2015). Effect of thymosin α1 on the phenotypic and functional maturation of dendritic cells from children with acute lymphoblastic leukemia. Molecular Medicine Reports, 12, 6093-6097. https://doi.org/10.3892/mmr.2015.4153
MLA
Li, X., Liu, X., Zhao, Y., Zhong, R., Song, A., Sun, L."Effect of thymosin α1 on the phenotypic and functional maturation of dendritic cells from children with acute lymphoblastic leukemia". Molecular Medicine Reports 12.4 (2015): 6093-6097.
Chicago
Li, X., Liu, X., Zhao, Y., Zhong, R., Song, A., Sun, L."Effect of thymosin α1 on the phenotypic and functional maturation of dendritic cells from children with acute lymphoblastic leukemia". Molecular Medicine Reports 12, no. 4 (2015): 6093-6097. https://doi.org/10.3892/mmr.2015.4153