期刊
INTERNATIONAL JOURNAL OF ONCOLOGY
卷 59, 期 1, 页码 -出版社
SPANDIDOS PUBL LTD
DOI: 10.3892/ijo.2021.5230
关键词
Th1; Th2 balance; ionizing radiation; antitumor response; immune crosstalk; radiation injury
类别
资金
- National Natural Science Foundation of China [81773236, 81800429, 81972852]
- Key Research and Development Project of Hubei Province [2020BCA069]
- Natural Science Foundation of Hubei Province [2020CFB612]
- Health Commission of Hubei Province Medical Leading Talent Project, Health Commission of Hubei Province Scientific Research Project [WJ2019H002, WJ2019Q047]
- Young and Middle-Aged Medical Backbone Talents of Wuhan [WHQG201902]
- Application Foundation Frontier Project of Wuhan [2020020601012221]
- Zhongnan Hospital of Wuhan University Science, Technology and Innovation Seed Fund [znpy2019001, znpy2019048, ZNJC201922]
- Chinese Society of Clinical Oncology Top Alliance Tumor Immune Research Fund [Y-JS2019-036]
The review summarizes the imbalance of Th1 and Th2 cells in the tumorigenic microenvironment and the impact of IR on Th1/Th2 polarization, discussing the role in post-radiotherapy complications and highlighting that high-dose IR promotes a shift towards Th2, leading to an immunosuppressive cytokine network.
Extensive evidence has documented that the balance between cytokines from T helper type 1 (Th1) and type 2 (Th2) cells is disrupted in the tumorigenic microenvironment compared with immunocompetent individuals. Ionizing radiation (IR) has been reported to markedly modulate the Th1/Th2 polarization in a concentration-dependent manner. In the present review article, the immune modulation of Th1/Th2 and the IR-induced crosstalk of the Th1/Th2 shift with immunocytes and tumor cells are summarized. The involvement of the Th1/Th2 shift in post-radiotherapy complications is highlighted. Specifically, high-dose IR has been shown to promote the Th2 shift, leading to an immunosuppressive cytokine network, while the impact of low-dose IR remains controversial. The IR-induced modulation of the Th1/Th2 shift is mediated by tumor cells and multiple immunocytes, including dendritic cells, tumor-associated macrophages, cytotoxic T lymphocytes and natural killer cells. However, the excessive production of pro-inflammatory factors, such as IFN-gamma and IL-2, by Th1 cells, aggravates the clinical side-effects of radiotherapy, including radiation-induced lung and intestinal injury, radiation encephalopathy, as well as other complications. Therefore, further research into the underlying mechanism is required to confirm the potential applicability of the Th1/Th2 shift combined with IR in the treatment of malignant tumors.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据