CD4(+) T cells regulate pulmonary metastasis of mammary carcinomas by enhancing protumor properties of macrophages.

CD4(+) T cells regulate pulmonary metastasis of mammary carcinomas by enhancing protumor properties of macrophages.
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DOI:
10.1016/j.ccr.2009.06.018
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发表时间:
2009-08-04
期刊:
影响因子:
50.3
通讯作者:
Coussens LM
Coussens LM
中科院分区:
医学1区
文献类型:
--
作者:
DeNardo DG;Barreto JB;Andreu P;Vasquez L;Tawfik D;Kolhatkar N;Coussens LM

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During breast cancer development, increased presence of leukocytes in neoplastic stroma parallels disease progression; however, the functional significance of leukocytes in regulating protumor versus antitumor immunity in the breast remains poorly understood. Utilizing the MMTV-PyMT model of mammary carcinogenesis, we demonstrate that IL-4-expressing CD4+ T lymphocytes indirectly promote invasion and subsequent metastasis of mammary adenocarcinomas by directly regulating the phenotype and effector function of tumor-associated CD11b+Gr1-F4/80+ macrophages that in turn enhance metastasis through activation of epidermal growth factor receptor signaling in malignant mammary epithelial cells. Together, these data indicate that antitumor acquired immune programs can be usurped in protumor microenvironments and instead promote malignancy by engaging cellular components of the innate immune system functionally involved in regulating epithelial cell behavior.
腋窝淋巴结中免疫细胞的特征可以预测乳腺癌中无疾病的生存。
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