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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Repasky, Elizabeth A. Sexton, Sandra Capitano, Maegan L. Gordon, Christopher J. Eng, Jason W-l Lee, Chen-ting Hong, Chi-chen Abrams, Scott I. Kokolus, Kathleen M. Waight, Jeremy D. Hylander, Bonnie L. |
| Description | Author Affiliation: Kokolus KM ( Department of Immunology, Department of Animal Resources, and Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY 14263.); |
| Abstract | We show here that fundamental aspects of antitumor immunity in mice are significantly influenced by ambient housing temperature. Standard housing temperature for laboratory mice in research facilities is mandated to be between 20-26 °C; however, these subthermoneutral temperatures cause mild chronic cold stress, activating thermogenesis to maintain normal body temperature. When stress is alleviated by housing at thermoneutral ambient temperature (30-31 °C), we observe a striking reduction in tumor formation, growth rate and metastasis. This improved control of tumor growth is dependent upon the adaptive immune system. We observe significantly increased numbers of antigen-specific CD8(+) T lymphocytes and CD8(+) T cells with an activated phenotype in the tumor microenvironment at thermoneutrality. At the same time there is a significant reduction in numbers of immunosuppressive MDSCs and regulatory T lymphocytes. Notably, in temperature preference studies, tumor-bearing mice select a higher ambient temperature than non-tumor-bearing mice, suggesting that tumor-bearing mice experience a greater degree of cold-stress. Overall, our data raise the hypothesis that suppression of antitumor immunity is an outcome of cold stress-induced thermogenesis. Therefore, the common approach of studying immunity against tumors in mice housed only at standard room temperature may be limiting our understanding of the full potential of the antitumor immune response. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 50 |
| Volume Number | 110 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2013-12-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | CD8-Positive T-Lymphocytes Immunology Housing, Animal Immunotherapy Neoplasms Stress, Physiological Temperature Analysis Of Variance Animals Blood Cell Count Cell Line, Tumor Immunohistochemistry Linear Models Mice Mice, Inbred BALB C Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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