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期刊论文

PGC-1 coactivators in the control of energy metabolism

刘畅Liu C. & Lin J.D.

Acta Biochimica et Biophysica Sinica (2011), 43: 248-257.,-0001,():

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摘要/描述

Chronic disruption of energy balance, where energy intake exceeds expenditure, is a major risk factor for the development of metabolic syndrome. The latter is characterized by a constellation of symptoms including obesity, dyslipidemia, insulin resistance, hypertension, and non-alcoholic fatty liver disease (NAFLD). Altered expression of genes involved in glucose and lipid metabolism as well as mitochondrial oxidative phosphorylation (OXPHOS) has been implicated in the pathogenesis of these disorders. The peroxisome proliferator-activated receptor (PPAR)-γ coactivator-1 (PGC-1) family of transcriptional coactivators is emerging as a hub linking nutritional and hormonal signals and energy metabolism. PGC-1α and PGC-1beta are highly responsive to a variety of environmental cues and coordinates metabolic gene transcription through interaction with transcription factors and chromatin-remodeling proteins. PGC-1α has been implicated in the pathogenic conditions such as obesity, type 2 diabetes, neurodegeneration, and cardiomyopathy, whereas PGC-1beta plays an important role in plasma lipoprotein homeostasis and serves as a hepatic target for niacin, a potent hypotriglyceridemic drug. Here, we review recent advances in the identification of physiological and pathophysiological contexts involving PGC-1 coactivators, and also discuss their implications for therapeutic development.

关键词: trans c r i p t ional coactivator, metabolic syndrome, PGC-1, mitochondrial, energy metabolism

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