期刊论文详细信息
Endocrine Journal
Recent progress on the role of ChREBP in glucose and lipid metabolism [Review]
Katsumi Iizuka1 
[1] University Hospital Center for Nutritional Support and Infection Control, Gifu University, Gifu 501-1194, Japan
关键词: Carbohydrate response element binding protein (ChREBP);    Transketolase;    Krüppel like factor-10;    Glucagon receptor;    Basic helix-loop-helix domain containing B2/differentially expressed in chondrocytes 1 (BHLHB2/DEC1);   
DOI  :  10.1507/endocrj.EJ13-0121
学科分类:内分泌与代谢学
来源: Japan Endocrine Society
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【 摘 要 】

References(88)Cited-By(14)Carbohydrate response element binding protein (ChREBP) is a transcription factor activated by glucose that is highly expressed in liver, pancreatic β-cells, brown and white adipose tissues, and muscle.We reported that hepatic suppression of the Chrebp gene improves hepatic steatosis, glucose intolerance, and obesity in genetically obese mice.Moreover, we have studied the role of ChREBP with special reference to feedforward and feedback looping in liver and pancreatic β-cells.Recently, several groups reported that (1) glucose activates ChREBP-α transactivity and in turn ChREBP-α induces ChREBP-β on both transcriptional and translational levels in adipose tissues, and (2) ChREBP regulates glucose transporter type 4 mRNA levels, which may affect glucose uptake in adipose tissues.Moreover, in adipose tissues of obese patients, Chrebpb mRNA levels were much lower than those in lean subjects, while the levels were much higher in liver of obese patients than those in lean subjects.These findings suggest that Chrebpb mRNA levels are different in various tissues and probably in the stages of diabetes mellitus.Herein, we review recent progress in the study of ChREBP with special references to (1) the mechanisms regulating ChREBP transactivity (posttranslational modifications, intramolecular glucose sensing module, feedforward mechanism, and the feedback loop between ChREBP and its target genes), and (2) the role of ChREBP in liver, pancreatic islets and adipose tissues.Understanding the role of ChREBP in each tissue will provide important insight into the pathogenesis of metabolic syndrome.

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