Open Access

TIRC7 inhibits Th1 cells by upregulating the expression of CTLA‑4 and STAT3 in mice with acute graft‑versus‑host disease

  • Authors:
    • Feng Zhu
    • Tingting Qiu
    • Shengyun Zhu
    • Kai Zhao
    • Chong Chen
    • Jianlin Qiao
    • Bin Pan
    • Zhiling Yan
    • Wei Chen
    • Qiong Liu
    • Qingyun Wu
    • Jiang Cao
    • Wei Sang
    • Lingyu Zeng
    • Haiying Sun
    • Zhenyu Li
    • Kailin Xu
  • View Affiliations

  • Published online on: April 21, 2020     https://doi.org/10.3892/or.2020.7588
  • Pages: 43-54
  • Copyright: © Zhu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

In a previous study, it was demonstrated that T‑cell immune response cDNA 7 (TIRC7) levels reflect the efficacy of treatment of patients with acute graft‑versus‑host disease (GVHD). However, the pathogenesis of TIRC7 in acute GVHD remains poorly understood. Lymphocytes from patients with acute GVHD were selected as targeT cells, and the effects of TIRC7 on cytotoxic T lymphocyte antigen‑4 (CTLA‑4), T cell activation and cytokine secretion were observed by electroporation. A mouse model of acute GVHD was established; anti‑TIRC7 and anti‑CTLA‑4 monoclonal antibodies were intraperitoneally injected into recipient mice. Then, the effects of TIRC7 and CTLA‑4 on T cell activation and acute GVHD were monitored. After TIRC7 expression was downregulated, CTLA‑4 levels were decreased and STAT3 phosphorylation was reduced; conversely, the activation capacity of T lymphocytes was elevated, and the secretion of interferon‑γ and other cytokines was increased. The mice in the TIRC7 + CTLA‑4 co‑administration group exhibited the lowest acute GVHD scores, with the longest average survival time and shortest recovery time of hematopoietic reconstitution. In conclusion, the results indicated that TIRC7 may positively regulate the function of CTLA‑4 and inhibit T cell activation, thus suppressing the development and progression of acute GVHD.

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July 2020
Volume 44 Issue 1

Print ISSN: 1021-335X
Online ISSN:1791-2431

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APA
Zhu, F., Qiu, T., Zhu, S., Zhao, K., Chen, C., Qiao, J. ... Xu, K. (2020). TIRC7 inhibits Th1 cells by upregulating the expression of CTLA‑4 and STAT3 in mice with acute graft‑versus‑host disease. Oncology Reports, 44, 43-54. https://doi.org/10.3892/or.2020.7588
MLA
Zhu, F., Qiu, T., Zhu, S., Zhao, K., Chen, C., Qiao, J., Pan, B., Yan, Z., Chen, W., Liu, Q., Wu, Q., Cao, J., Sang, W., Zeng, L., Sun, H., Li, Z., Xu, K."TIRC7 inhibits Th1 cells by upregulating the expression of CTLA‑4 and STAT3 in mice with acute graft‑versus‑host disease". Oncology Reports 44.1 (2020): 43-54.
Chicago
Zhu, F., Qiu, T., Zhu, S., Zhao, K., Chen, C., Qiao, J., Pan, B., Yan, Z., Chen, W., Liu, Q., Wu, Q., Cao, J., Sang, W., Zeng, L., Sun, H., Li, Z., Xu, K."TIRC7 inhibits Th1 cells by upregulating the expression of CTLA‑4 and STAT3 in mice with acute graft‑versus‑host disease". Oncology Reports 44, no. 1 (2020): 43-54. https://doi.org/10.3892/or.2020.7588