Patterns of Differentially Expressed circRNAs in Human Thymocytes

Circular RNAs (circRNAs) are suggested to play a discriminative role between some stages of thymocyte differentiation. However, differential aspects of the stage of mature single-positive thymocytes remain to be explored. The purpose of this study is to investigate the differential expression patter...

Descripción completa

Detalles Bibliográficos
Autores: López Nieva, María Pilar, Fernández-Navarro, Pablo, Cobos-Fernández, María Ángeles, González-Vasconcellos, Iria, Pérez, Raúl Sánchez, Aroca Peinado, Ángel, Fernández Piqueras, José, Santos Hernández, Francisco Javier
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/705782
Acceso en línea:http://hdl.handle.net/10486/705782
https://dx.doi.org/10.3390/ncrna8020026
Access Level:acceso abierto
Palabra clave:circRNAs
circRNA–miRNA–mRNA controlling networks
human thymocytes
Biología y Biomedicina / Biología
Descripción
Sumario:Circular RNAs (circRNAs) are suggested to play a discriminative role between some stages of thymocyte differentiation. However, differential aspects of the stage of mature single-positive thymocytes remain to be explored. The purpose of this study is to investigate the differential expression pattern of circRNAs in three different development stages of human thymocytes, including mature single-positive cells, and perform predictions in silico regarding the ability of specific circRNAs when controlling the expression of genes involved in thymocyte differentiation. We isolate human thymocytes at three different stages of intrathymic differentiation and determine the expression of circRNAs and mRNA by RNASeq. We show that the differential expression pattern of 50 specific circRNAs serves to discriminate between the three human thymocyte populations. Interestingly, the downregulation of RAG2, a gene involved in T-cell differentiation in the thymus, could be simultaneously controlled by the downregulation of two circRNASs (hsa_circ_0031584 and hsa_circ_0019079) through the hypothetical liberation of hsa-miR-609. Our study provides, for the first time, significant insights into the usefulness of circRNAs in discriminating between different stages of thymocyte differentiation and provides new potential circRNA–miRNA–mRNA networks capable of controlling the expression of genes involved in T-cell differentiation in the thymus