Abstract
Brown adipose tissue (BAT) functions to dissipate energy in response to cold exposure or overfeeding. Counteracting obesity has been extensively considered as a promising target. Long noncoding RNAs (lncRNAs) are an important class of pervasive genes involved in a variety of biological functions. However, the potential biological functions of lncRNAs during mouse brown fat cell differentiation have not been fully understood. Here, we performed lncRNA and mRNA expression profile analysis using microarray technology and identified 1064 lncRNAs with differential expression (fold change|≥4, p≤0.01) on day 0 and day 8 during differentiation. Furthermore, candidate lncRNAs were characterized by comprehensive examination of their genomic context, gene ontology (GO) enrichment of their associated protein-coding genes and pathway analysis. We identified three lncRNAs (Gm15051, Tmem189 and Cebpd) associated with their flanking coding genes (Hoxa1, C/EBPβ and C/EBPδ), which participated in adipose commitment. Collectively, our findings indicated lncRNAs are involved in mouse BAT development and provide potential targets for obesity therapy.
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