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Lung tumor NF-κB signaling promotes T cell–mediated immune surveillance
Emily L. Hopewell, … , Dung-Tsa Chen, Amer A. Beg
Emily L. Hopewell, … , Dung-Tsa Chen, Amer A. Beg
Published June 3, 2013; First published May 1, 2013
Citation Information: J Clin Invest. 2013;123(6):2509-2522. https://doi.org/10.1172/JCI67250.
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Categories: Research Article Oncology

Lung tumor NF-κB signaling promotes T cell–mediated immune surveillance

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Abstract

NF-κB is constitutively activated in many cancer types and is a potential key mediator of tumor-associated inflammation, tumor growth, and metastasis. We investigated the role of cancer cell NF-κB activity in T cell–mediated antitumor responses. In tumors rendered immunogenic by model antigen expression or following administration of antitumor vaccines, we found that high NF-κB activity leads to tumor rejection and/or growth suppression in mice. Using a global RNA expression microarray, we demonstrated that NF-κB enhanced expression of several T cell chemokines, including Ccl2, and decreased CCL2 expression was associated with enhanced tumor growth in a mouse lung cancer model. To investigate NF-κB function in human lung tumors, we identified a gene expression signature in human lung adenocarcinoma cell lines that was associated with NF-κB activity level. In patient tumor samples, overall lung tumor NF-κB activity was strongly associated with T cell infiltration but not with cancer cell proliferation. These results therefore indicate that NF-κB activity mediates immune surveillance and promotes antitumor T cell responses in both murine and human lung cancer.

Authors

Emily L. Hopewell, Weipeng Zhao, William J. Fulp, Crystina C. Bronk, Alexis S. Lopez, Michael Massengill, Scott Antonia, Esteban Celis, Eric B. Haura, Steven A. Enkemann, Dung-Tsa Chen, Amer A. Beg

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