Downregulation of hepatic lncRNA Gm19619 improves gluconeogenesis and lipogenesis following vertical sleeve gastrectomy in mice [ChIRP-Seq]
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ABSTRACT: Long non-coding RNAs (lncRNAs) are emerging important epigenetic regulators in metabolic processes. Whether they contribute to the metabolic effects of vertical sleeve gastrectomy (VSG), one of the most effective treatments for sustainable weight loss and metabolic improvement, is unknown. Herein, we identified a hepatic lncRNA Gm19619, which was strongly repressed by VSG but highly up-regulated by diet-induced obesity and overnight-fasting in mice. Forced transcription of Gm19619 in the mouse liver significantly promoted hepatic gluconeogenesis with the elevated expression of G6pc and Pck1. In contrast, AAV-CasRx mediated knockdown of Gm19619 in HFD-fed mice significantly improved hepatic glucose and lipid metabolism. Mechanistically, Gm19619 was enriched along genomic regions encoding leptin receptor (Lepr) and the transcriptional factor Foxo1, as revealed in chromatin isolation by RNA purification (ChIRP) assay and was confirmed to modulate their transcription in the mouse liver. In conclusion, Gm19619 may enhance gluconeogenesis and lipid metabolism in the liver.
ORGANISM(S): Mus musculus
PROVIDER: GSE218905 | GEO | 2023/01/27
REPOSITORIES: GEO
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