Protective effect of trichostatin A on CD19+CD5+CD1dhigh regulatory B cells in heart transplantation

  • Authors:
    • Bing Zhou
    • Fuyang Mei
    • Changhao Wu
    • Heyun Xu
    • Zhifang Liu
    • Yong Cui
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  • Published online on: March 9, 2021     https://doi.org/10.3892/mmr.2021.11978
  • Article Number: 339
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Abstract

Heart transplantation is widely used for the treatment of several heart diseases. Regulatory B cells (Breg cells) serve a critical role in immune tolerance. However, the role of Breg cells in immune tolerance in the context of allogeneic heart transplantation remains poorly understood. The present study aimed to explore the effect of histone deacetylase (HDAC) inhibitor trichostatin A (TSA)‑regulated Breg on the regulation of immune tolerance in heart transplantation. By constructing anallogeneic heart transplantation mouse model, and performing flow cytometry, reverse transcription‑quantitative PCR, western blotting and carboxyfluorescein succinimidyl esterstaining assays, TSA‑regulated Breg cells and their effects on immune tolerance in heart transplantation were evaluated. The results demonstrated that TSA increased the frequency of CD19+CD5+CD1dhigh Breg cells both in vitro and in vivo. Moreover, TSA treatment increased the frequency of IL‑10 and TGF‑β‑producing CD19+CD5+CD1dhigh Breg cells, and IL‑10 and TGF‑β levels in vitro and in vivo. TSA administration significantly prolonged the survival rate in a heart transplant experiment model. In addition, the IL‑10 inhibitor ammonium trichloro(dioxoethylene‑o,o')tellurate partially reduced the survival rate and the percentages of CD19+CD5+CD1dhigh Breg cells in mice receiving heart allografts. In contrast, anti‑CD20 treatment significantly decreased the survival rate in these mice. Collectively, the present findings suggested that TSA may induce immune tolerance following heart transplantation by regulating CD19+CD5+CD1dhigh Breg cells. These results provide a theoretical basis for the prevention of immunological rejection in cardiac transplantation.
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May-2021
Volume 23 Issue 5

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

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Spandidos Publications style
Zhou B, Mei F, Wu C, Xu H, Liu Z and Cui Y: Protective effect of trichostatin A on CD19<sup>+</sup>CD5<sup>+</sup>CD1d<sup>high</sup> regulatory B cells in heart transplantation. Mol Med Rep 23: 339, 2021
APA
Zhou, B., Mei, F., Wu, C., Xu, H., Liu, Z., & Cui, Y. (2021). Protective effect of trichostatin A on CD19<sup>+</sup>CD5<sup>+</sup>CD1d<sup>high</sup> regulatory B cells in heart transplantation. Molecular Medicine Reports, 23, 339. https://doi.org/10.3892/mmr.2021.11978
MLA
Zhou, B., Mei, F., Wu, C., Xu, H., Liu, Z., Cui, Y."Protective effect of trichostatin A on CD19<sup>+</sup>CD5<sup>+</sup>CD1d<sup>high</sup> regulatory B cells in heart transplantation". Molecular Medicine Reports 23.5 (2021): 339.
Chicago
Zhou, B., Mei, F., Wu, C., Xu, H., Liu, Z., Cui, Y."Protective effect of trichostatin A on CD19<sup>+</sup>CD5<sup>+</sup>CD1d<sup>high</sup> regulatory B cells in heart transplantation". Molecular Medicine Reports 23, no. 5 (2021): 339. https://doi.org/10.3892/mmr.2021.11978