期刊
NATURE IMMUNOLOGY
卷 16, 期 6, 页码 609-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ni.3159
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资金
- Wilhelm Sander Stiftung [2009.022.2]
- German Cancer Research Center
- Israel Ministry of Science, Technology and Space
- Bonn Cluster of Excellence
Tumor-associated eosinophilia is frequently observed in cancer. However, despite numerous studies of patients with cancer and mouse models of cancer, it has remained uncertain if eosinophils contribute to tumor immunity or are mere bystander cells. Here we report that activated eosinophils were essential for tumor rejection in the presence of tumor-specific CD8(+) T cells. Tumor-homing eosinophils secreted chemoattractants that guided T cells into the tumor, which resulted in tumor eradication and survival. Activated eosinophils initiated substantial changes in the tumor microenvironment, including macrophage polarization and normalization of the tumor vasculature, which are known to promote tumor rejection. Thus, our study presents a new concept for eosinophils in cancer that may lead to novel therapeutic strategies.
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