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Interleukin‐33 activates and recruits natural killer cells to inhibit pulmonary metastatic cancer development
Author(s) -
Qi Lu,
Zhang Qiuyan,
Miao Yuhui,
Kang Wenyao,
Tian Zhigang,
Xu Damo,
Xiao Weihua,
Fang Fang
Publication year - 2019
Publication title -
international journal of cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.475
H-Index - 234
eISSN - 1097-0215
pISSN - 0020-7136
DOI - 10.1002/ijc.32779
Subject(s) - cancer research , immunology , metastasis , tumor microenvironment , medicine , tumor necrosis factor alpha , biology , cancer , immune system
Increasing evidence suggests that IL‐33 plays an important role in regulating tumor development. However, conflicting results, obtained from numerous studies, have highlighted the divergent functions of IL‐33. The detailed mechanisms by which IL‐33 modulates tumor development merit further investigation. Here, we report that IL‐33 administration can effectively inhibit the development of pulmonary metastasis of breast cancer in a mouse. In our model, IL‐33 promotes the production of TNF‐α by macrophages, which increases IL‐33 specific receptor (ST2) expression on natural killer (NK) cells and is pivotal in IL‐33‐induced NK cell activation. IL‐33 treatment also facilitates the production of CCL5 in the lung by eosinophils and CD8 + T cells, which mediates the recruitment of NK cells to the tumor microenvironment. The systemic activation and local recruitment of NK cells result in potent tumor rejection in the lung. Our study reports a novel mechanism for the IL‐33‐meditated suppression of metastatic cancer and provides potential therapeutic strategies for targeting metastatic tumor.