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Stability and inhibitory function of Treg cells under inflammatory conditions in vitro

  • Authors:
    • Huifang Guo
    • Liru Xun
    • Ruisan Zhang
    • Fengrui Hu
    • Jing Luan
    • Kejing Lao
    • Xiaolong Wang
    • Xingchun Gou
  • View Affiliations / Copyright

    Affiliations: Shaanxi Key Laboratory of Brain Disorders and School of Basic Medical Science, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China, Nephrology Department of Shaanxi Provincial People's Hospital Affiliated to Xi'an Medical University, Xi'an, Shaanxi 710068, P.R. China
    Copyright: © Guo et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 2443-2450
    |
    Published online on: August 8, 2019
       https://doi.org/10.3892/etm.2019.7873
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Abstract

Immunotherapy with transplanted T‑regulatory (Treg) cells is currently in use. However, patients have complex internal environments with confounding factors, including the presence of inflammatory cytokines. The present study aimed to detect Treg cell function under simulated inflammatory conditions to provide a foundation for Treg cell‑based immunotherapy. CD4+CD25high Treg cells were sorted from peripheral blood mononuclear cells and cultured for 14 days in the presence of recombinant human interleukin‑2 (rhIL‑2) and anti‑CD3/CD28 beads, with or without 25 ng/ml rhIL‑6. Next, the absolute count of Treg cells was determined, the stability and activity were detected by measuring the expression levels of forkhead box (Fox)P3 and CD39, and the suppressive function of Treg cells was investigated by assessing the suppression of T‑effector cell proliferation by Treg cells after co‑culture for 5 days. The number of Treg cells cultured in the presence of 25 ng/ml rhIL‑6 for 14 days was reduced by 49.7% when compared with that of cells cultured without rhIL‑6. Of the Treg cells continually cultured for 14 days without or with 25 ng/ml rhIL‑6, 56.15 and 24.7% expressed FoxP3, respectively. There was no difference in the activity of the FoxP3+ Treg cells after culture for 14 days without or with 25 ng/ml rhIL‑6. The suppressive function of Treg cells tended to deteriorate in the presence of rhIL‑6. In conclusion, IL‑6 inhibited the proliferation and stability of Treg cells, suggesting that administration of increased numbers of Treg cells may be required during Treg cell‑based immunotherapy.
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Copy and paste a formatted citation
Spandidos Publications style
Guo H, Xun L, Zhang R, Hu F, Luan J, Lao K, Wang X and Gou X: Stability and inhibitory function of Treg cells under inflammatory conditions in vitro. Exp Ther Med 18: 2443-2450, 2019.
APA
Guo, H., Xun, L., Zhang, R., Hu, F., Luan, J., Lao, K. ... Gou, X. (2019). Stability and inhibitory function of Treg cells under inflammatory conditions in vitro. Experimental and Therapeutic Medicine, 18, 2443-2450. https://doi.org/10.3892/etm.2019.7873
MLA
Guo, H., Xun, L., Zhang, R., Hu, F., Luan, J., Lao, K., Wang, X., Gou, X."Stability and inhibitory function of Treg cells under inflammatory conditions in vitro". Experimental and Therapeutic Medicine 18.4 (2019): 2443-2450.
Chicago
Guo, H., Xun, L., Zhang, R., Hu, F., Luan, J., Lao, K., Wang, X., Gou, X."Stability and inhibitory function of Treg cells under inflammatory conditions in vitro". Experimental and Therapeutic Medicine 18, no. 4 (2019): 2443-2450. https://doi.org/10.3892/etm.2019.7873
Copy and paste a formatted citation
x
Spandidos Publications style
Guo H, Xun L, Zhang R, Hu F, Luan J, Lao K, Wang X and Gou X: Stability and inhibitory function of Treg cells under inflammatory conditions in vitro. Exp Ther Med 18: 2443-2450, 2019.
APA
Guo, H., Xun, L., Zhang, R., Hu, F., Luan, J., Lao, K. ... Gou, X. (2019). Stability and inhibitory function of Treg cells under inflammatory conditions in vitro. Experimental and Therapeutic Medicine, 18, 2443-2450. https://doi.org/10.3892/etm.2019.7873
MLA
Guo, H., Xun, L., Zhang, R., Hu, F., Luan, J., Lao, K., Wang, X., Gou, X."Stability and inhibitory function of Treg cells under inflammatory conditions in vitro". Experimental and Therapeutic Medicine 18.4 (2019): 2443-2450.
Chicago
Guo, H., Xun, L., Zhang, R., Hu, F., Luan, J., Lao, K., Wang, X., Gou, X."Stability and inhibitory function of Treg cells under inflammatory conditions in vitro". Experimental and Therapeutic Medicine 18, no. 4 (2019): 2443-2450. https://doi.org/10.3892/etm.2019.7873
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