Abstract:
:Radiotherapy (RT) represents one of the main anticancer approaches for the treatment of solid tumors. Beyond the expected direct effects of RT on tumor cells, evidence supporting the importance of an immune response to RT is growing. The balance between RT-mediated immunogenic and tolerogenic activity is ill-defined and deserves more attention. Herein, a murine model of head and neck squamous cell carcinoma was used to demonstrate that RT upregulated CCL2 chemokine production in tumor cells, leading to a CCR2-dependent accumulation of tumor necrosis factor alpha (TNFα)-producing monocytes and CCR2+ regulatory T cells (Treg). This corecruitment was associated with a TNFα-dependent activation of Tregs, dampening the efficacy of RT. Our results highlight an unexpected cross-talk between innate and adaptive immune system components and indicate CCL2/CCR2 and TNFα as potential clinical candidates to counterbalance the radioprotective action of monocyte-derived cells and Tregs, paving the way for potent combined radioimmunotherapies.
journal_name
Cancer Immunol Resjournal_title
Cancer immunology researchauthors
Mondini M,Loyher PL,Hamon P,Gerbé de Thoré M,Laviron M,Berthelot K,Clémenson C,Salomon BL,Combadière C,Deutsch E,Boissonnas Adoi
10.1158/2326-6066.CIR-18-0633subject
Has Abstractpub_date
2019-03-01 00:00:00pages
376-387issue
3eissn
2326-6066issn
2326-6074pii
2326-6066.CIR-18-0633journal_volume
7pub_type
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journal_title:Cancer immunology research
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pub_type: 临床试验,杂志文章
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pub_type: 杂志文章,评审
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journal_title:Cancer immunology research
pub_type: 杂志文章
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journal_title:Cancer immunology research
pub_type: 杂志文章,评审
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doi:10.1158/2326-6066.CIR-18-0572
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-14-0220-T
更新日期:2015-08-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
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journal_title:Cancer immunology research
pub_type: 杂志文章
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journal_title:Cancer immunology research
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journal_title:Cancer immunology research
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journal_title:Cancer immunology research
pub_type: 杂志文章
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