期刊
JOURNAL OF LEUKOCYTE BIOLOGY
卷 80, 期 4, 页码 705-713出版社
WILEY
DOI: 10.1189/jlb.1105656
关键词
chemokines; neovascularization; monocytes
During the neoplastic progression, macrophages as well as dendritic and NK cells are attracted into the tumor site and initiate the immune response against transformed cells. They activate and present tumor antigens to T cells, which are then activated to kill tumor cells. However, tumor cells are often capable of escaping the immune machinery. As the immune surveillance is not sufficient anymore, tumor-associated macrophages contribute to tumor progression. It is notable that tumor-associated macrophages promote the proliferation of tumor cells directly by secreting growth factors. They also participate in tumor progression by acting on endothelial cells and thus promoting the neovascularization of the tumor. Tumor-associated macrophages are indeed key protagonists during angiogenesis and promote each step of the angiogenesis cascade. J. Leukoc. Biol. 80:705-713;2006.
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