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Artículo

The thyroid status reprograms T cell lymphoma growth and modulates immune cell frequencies

Sterle, Helena AndreaIcon ; Barreiro Arcos, María LauraIcon ; Valli, EduardoIcon ; Paulazo, Maria AlejandraIcon ; Mendez Huergo, Santiago PatricioIcon ; Blidner, Ada GabrielaIcon ; Cayrol, Maria FlorenciaIcon ; Díaz Flaqué, María CelesteIcon ; Klecha, Alicia JuanaIcon ; Medina, Vanina AraceliIcon ; Colombo, Lucas LuisIcon ; Rabinovich, Gabriel AdriánIcon ; Cremaschi, Graciela AliciaIcon
Fecha de publicación: 04/2016
Editorial: Springer
Revista: Journal of Molecular Medicine (Berlin, Germany)
ISSN: 0946-2716
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Inmunología

Resumen

In spite of considerable evidence on the regulation of immunity by thyroid hormones, the impact of the thyroid status in tumor immunity is poorly understood. Here, we evaluated the antitumor immune responses evoked in mice with different thyroid status (euthyroid, hyperthyroid, and hypothyroid) that developed solid tumors or metastases after inoculation of syngeneic T lymphoma cells. Hyperthyroid mice showed increased tumor growth along with increased expression of cell cycle regulators compared to hypothyroid and control tumor-bearing mice. However, hypothyroid mice showed a higher frequency of metastases than the other groups. Hyperthyroid mice bearing tumors displayed a lower number of tumor-infiltrating T lymphocytes, lower percentage of functional IFN-γ-producing CD8+ T cells, and higher percentage of CD19+ B cells than euthyroid tumor-bearing mice. However, no differences were found in the distribution of lymphocyte subpopulations in tumor-draining lymph nodes (TDLNs) or spleens among different experimental groups. Interestingly, hypothyroid TDLN showed an increased percentage of regulatory T (Treg) cells, while hyperthyroid mice displayed increased number and activity of splenic NK cells, which frequency declined in spleens from hypothyroid mice. Moreover, a decreased number of splenic myeloid-derived suppressor cells (MDSCs) were found in tumor-bearing hyperthyroid mice as compared to hypothyroid or euthyroid mice. Additionally, hyperthyroid mice showed increased cytotoxic activity, which declined in hypothyroid mice. Thus, low levels of intratumoral cytotoxic activity would favor tumor local growth in hyperthyroid mice, while regional and systemic antitumor response may contribute to tumor dissemination in hypothyroid animals. Our results highlight the importance of monitoring the thyroid status in patients with T cell lymphomas.
Palabras clave: T Cell Lymphoma , Thyroid Hormones , Proliferation , Apoptosis , Antitumor Immune Response
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/39017
DOI: http://dx.doi.org/10.1007/s00109-015-1363-2
URL: https://link.springer.com/article/10.1007%2Fs00109-015-1363-2
Colecciones
Articulos(BIOMED)
Articulos de INSTITUTO DE INVESTIGACIONES BIOMEDICAS
Articulos(IBYME)
Articulos de INST.DE BIOLOGIA Y MEDICINA EXPERIMENTAL (I)
Articulos(OCA HOUSSAY)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA HOUSSAY
Citación
Sterle, Helena Andrea; Barreiro Arcos, María Laura; Valli, Eduardo; Paulazo, Maria Alejandra; Mendez Huergo, Santiago Patricio; et al.; The thyroid status reprograms T cell lymphoma growth and modulates immune cell frequencies; Springer; Journal of Molecular Medicine (Berlin, Germany); 94; 4; 4-2016; 417-429
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