Adrenergic stress constrains the development of anti-tumor immunity and abscopal responses following local radiation.
Nat Commun
; 11(1): 1821, 2020 04 14.
Article
en En
| MEDLINE
| ID: mdl-32286326
ABSTRACT
The abscopal effect following ionizing radiation therapy (RT) is considered to be a rare event. This effect does occur more frequently when combined with other therapies, including immunotherapy. Here we demonstrate that the frequency of abscopal events following RT alone is highly dependent upon the degree of adrenergic stress in the tumor-bearing host. Using a combination of physiologic, pharmacologic and genetic strategies, we observe improvements in the control of both irradiated and non-irradiated distant tumors, including metastatic tumors, when adrenergic stress or signaling through ß-adrenergic receptor is reduced. Further, we observe cellular and molecular evidence of improved, antigen-specific, anti-tumor immune responses which also depend upon T cell egress from draining lymph nodes. These data suggest that blockade of ß2 adrenergic stress signaling could be a useful, safe, and feasible strategy to improve efficacy in cancer patients undergoing radiation therapy.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Radiación Ionizante
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Estrés Fisiológico
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Adrenérgicos
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Inmunidad
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Neoplasias
Límite:
Animals
Idioma:
En
Revista:
Nat Commun
Asunto de la revista:
BIOLOGIA
/
CIENCIA
Año:
2020
Tipo del documento:
Article
País de afiliación:
Estados Unidos