Open Access

γδ T cell-mediated individualized immunotherapy for hepatocellular carcinoma considering clinicopathological characteristics and immunosuppressive factors

  • Authors:
    • Wei Tian
    • Jun Ma
    • Ruyi Shi
    • Chongren Ren
    • Jiefeng He
    • Haoliang Zhao
  • View Affiliations

  • Published online on: February 12, 2018     https://doi.org/10.3892/ol.2018.8026
  • Pages: 5433-5442
  • Copyright: © Tian et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Hepatocellular carcinoma (HCC) is the most common form of primary liver cancer. γδ T cells have been revealed to be promising candidates for immunotherapy in patients with HCC. However, the use of these cells in clinical practice has been demonstrated to be challenging. In the present study, γδ T cells isolated from the peripheral blood of patients with HCC (n=83) and healthy donors (n=15) were characterized. Flow cytometry was used to analyze the proportion, phenotype, tumor‑killing capacity and cytokine secretion of regulatory T cells (Tregs) and γδ T17 cells in peripheral blood samples prior to and following amplification. Interleukin (IL)‑17A levels in the supernatant was analyzed using an ELISA on days 3, 7, 10 and 14. The in vitro cytotoxicity of γδ T cells was measured using an MTT assay. It was revealed that zoledronate with IL‑2 may efficiently expand γδ T cells sourced from the peripheral blood of patients with HCC. The amplification capacity of γδ T cells was associated with the clinicopathological characteristics of patients (clinical stage, levels of AFP and albumin, duration of disease, size and number of tumors, numbers of Tregs and γδ T17 cells, and levels of IL‑17A). The proportion of γδ T cells positive for interferon‑γ, tumor necrosis factor‑α, granzyme B, perforin, and lysosome‑associated membrane protein 1 was almost unchanged prior to and following amplification. Following amplification, the in vitro cytotoxicity of γδ T cells also remained unchanged. γδ T17 cells, Tregs and IL‑17A levels were not altered during amplification. In summary, following in vitro amplification, circulating γδ T cells were revealed to possess features that may make them suitable for immunotherapy for HCC without increasing immunosuppressive factors. However, immunotherapy should be individualized according to the clinicopathological features of patients.
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April-2018
Volume 15 Issue 4

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Tian W, Ma J, Shi R, Ren C, He J and Zhao H: γδ T cell-mediated individualized immunotherapy for hepatocellular carcinoma considering clinicopathological characteristics and immunosuppressive factors. Oncol Lett 15: 5433-5442, 2018.
APA
Tian, W., Ma, J., Shi, R., Ren, C., He, J., & Zhao, H. (2018). γδ T cell-mediated individualized immunotherapy for hepatocellular carcinoma considering clinicopathological characteristics and immunosuppressive factors. Oncology Letters, 15, 5433-5442. https://doi.org/10.3892/ol.2018.8026
MLA
Tian, W., Ma, J., Shi, R., Ren, C., He, J., Zhao, H."γδ T cell-mediated individualized immunotherapy for hepatocellular carcinoma considering clinicopathological characteristics and immunosuppressive factors". Oncology Letters 15.4 (2018): 5433-5442.
Chicago
Tian, W., Ma, J., Shi, R., Ren, C., He, J., Zhao, H."γδ T cell-mediated individualized immunotherapy for hepatocellular carcinoma considering clinicopathological characteristics and immunosuppressive factors". Oncology Letters 15, no. 4 (2018): 5433-5442. https://doi.org/10.3892/ol.2018.8026