IL-1ß Induces SOCS2 Expression in Human Dendritic Cells.
Int J Mol Sci
; 20(23)2019 Nov 25.
Article
en En
| MEDLINE
| ID: mdl-31775389
ABSTRACT
Dendritic cells (DCs) regulate immunity and inflammation and respond to various stimuli, including cytokines. IL-1ß is a key cytokine in the course of both acute and chronic inflammatory responses, making it indispensable for protection of the host, but also linking it to several diseases. Thus, IL-1ß signaling must be tightly regulated. As suppressor of cytokine signaling (SOCS) proteins effectively control immune responses, we investigated the role of SOCS2 in IL-1ß-induced DC activation. Human monocyte-derived DCs were stimulated with IL-1ß, and SOCS2 mRNA and protein levels were measured. DC activation was assessed by cytokine secretion and surface marker expression. For functional analysis, small interfering RNA (siRNA)-based SOCS2 silencing was performed. SOCS2 expression was also analyzed in a curated NCBI GEO dataset of myeloid leukemia patients. We found IL-1ß to be a potent inducer of SOCS2 expression. By silencing SOCS2, we showed that SOCS2 specifically limits IL-1ß-induced IL-8 secretion. Moreover, our analysis revealed that SOCS2 levels are significantly increased in patients with acute and chronic myeloid leukemia, two hematological malignancies where disease progression is closely linked to IL-1ß. This study identifies SOCS2 as a novel IL-1ß-inducible target gene and points toward a potential role of SOCS2 in IL-1ß-mediated DC activation.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Células Dendríticas
/
Activación de Linfocitos
/
Monocitos
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Proteínas Supresoras de la Señalización de Citocinas
/
Interleucina-1beta
Límite:
Humans
Idioma:
En
Revista:
Int J Mol Sci
Año:
2019
Tipo del documento:
Article
País de afiliación:
Austria