Comparing thermal stress reduction strategies that influence MDSC accumulation in tumor bearing mice.
Cell Immunol
; 361: 104285, 2021 03.
Article
em En
| MEDLINE
| ID: mdl-33484943
ABSTRACT
Myeloid derived suppressor cells (MDSCs) are a diverse collection of immune cells that suppress anti-tumor immune responses. Decreasing MDSCs accumulation in the tumor microenvironment could improve the anti-tumor immune response and improve immunotherapy. Here, we examine the impact of physiologically relevant thermal treatments on the accumulation of MDSCs in tumors in mice. We found that different temperature-based protocols, including 1) weekly whole-body hyperthermia, 2) housing mice at their thermoneutral temperature (TT, ~30 °C), and 3) housing mice at a subthermoneutral temperature (ST,~22 °C) while providing a localized heat source, each resulted in a reduction in MDSC accumulation and improved tumor growth control compared to control mice housed at ST, which is the standard, mandated housing temperature for laboratory mice. Additionally, we found that low dose ß-adrenergic receptor blocker (propranolol) therapy reduced MDSC accumulation and improved tumor growth control to a similar degree as the models that relieved cold stress. These results show that thermal treatments can decrease MDSC accumulation and tumor growth comparable to propranolol therapy.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Células Supressoras Mieloides
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Temperatura Alta
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Neoplasias
Tipo de estudo:
Guideline
Limite:
Animals
Idioma:
En
Revista:
Cell Immunol
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Estados Unidos