RESUMEN
OBJECTIVE: Reliable biomarkers associated with aggressiveness of non-functioning gonadotroph adenomas (GAs) are lacking. As the growth of tumor remnants is highly variable, molecular markers for growth potential prediction are necessary. We hypothesized that fast- and slow-growing GAs present different gene expression profiles and reliable biomarkers for tumor growth potential could be identified, focusing on the specific role of epithelial-mesenchymal transition (EMT). DESIGN AND METHODS: Eight GAs selected for RNA sequencing were equally divided into fast- and slow-growing group by the tumor volume doubling time (TVDT) median (27.75 months). Data were analyzed by tophat2, cufflinks and cummeRbund pipeline. 40 genes were selected for RT-qPCR validation in 20 GAs based on significance, fold-change and pathway analyses. The effect of silencing MTDH (metadherin) and EMCN (endomucin) on in vitro migration of human adenoma cells was evaluated. RESULTS: 350 genes were significantly differentially expressed (282 genes upregulated and 68 downregulated in the fast group, P-adjusted <0.05). Among 40 selected genes, 11 showed associations with TVDT (-0.669Asunto(s)
Adenoma/genética
, Transición Epitelial-Mesenquimal/genética
, Neoplasias Hipofisarias/genética
, ARN Mensajero/metabolismo
, Proteínas Adaptadoras Transductoras de Señales/genética
, Adenoma/metabolismo
, Adulto
, Anciano
, Cadherinas/genética
, Moléculas de Adhesión Celular/genética
, Movimiento Celular/genética
, Subunidades Catalíticas de Proteína Quinasa Dependientes de AMP Cíclico/genética
, Femenino
, Hormona Folículo Estimulante/metabolismo
, Perfilación de la Expresión Génica
, Regulación Neoplásica de la Expresión Génica
, Silenciador del Gen
, Humanos
, Técnicas In Vitro
, Péptidos y Proteínas de Señalización Intracelular/genética
, Hormona Luteinizante/metabolismo
, Masculino
, Glicoproteínas de Membrana/genética
, Proteínas de la Membrana
, Proteínas Asociadas a Microtúbulos/genética
, Persona de Mediana Edad
, Miosina Tipo I/genética
, Proteínas del Tejido Nervioso/genética
, Neoplasias Hipofisarias/metabolismo
, Proteínas Proto-Oncogénicas/genética
, Protocadherinas
, Proteínas de Unión al ARN
, Receptores de Superficie Celular/genética
, Reacción en Cadena de la Polimerasa de Transcriptasa Inversa
, Ribonucleasas/genética
, Sialoglicoproteínas/genética
, Factores de Tiempo