miRNA profiling during antigendependent T cell activation: A role for miR-132-3p

microRNAs (miRNAs) are tightly regulated during T lymphocyte activation to enable the establishment of precise immune responses. Here, we analyzed the changes of the miRNA profiles of T cells in response to activation by cognate interaction with dendritic cells. We also studied mRNA targets common t...

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Detalles Bibliográficos
Autores: Gutiérrez-Vázquez, Cristina, Rodríguez Galán, Ana, Fernández-Alfara, Marcos, MITTELBRUM HERRERO, MARIA, Sánchez Cabo, Fátima, Martínez-Herrera, Dannys Jorge, Ramírez-Huesca, Marta, Pascual-Montano, Alberto, Sánchez Madrid, Francisco
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/680259
Acceso en línea:http://hdl.handle.net/10486/680259
https://dx.doi.org/10.1038/s41598-017-03689-7
Access Level:acceso abierto
Palabra clave:microRNAs (miRNAs)
T cell activation
Pik3r1 gene
MiR-132-3p
Medicina
Descripción
Sumario:microRNAs (miRNAs) are tightly regulated during T lymphocyte activation to enable the establishment of precise immune responses. Here, we analyzed the changes of the miRNA profiles of T cells in response to activation by cognate interaction with dendritic cells. We also studied mRNA targets common to miRNAs regulated in T cell activation. pik3r1 gene, which encodes the regulatory subunits of PI3K p50, p55 and p85, was identified as target of miRNAs upregulated after T cell activation. Using 3′UTR luciferase reporter-based and biochemical assays, we showed the inhibitory relationship between miR-132-3p upregulation and expression of the pik3r1 gene. Our results indicate that specific miRNAs whose expression is modulated during T cell activation might regulate PI3K signaling in T cells