...
首页> 外文期刊>Biochemistry >Identification of a Novel Gene, MSAG, Regulated by High Levels of Glucose and Insulin
【24h】

Identification of a Novel Gene, MSAG, Regulated by High Levels of Glucose and Insulin

机译:高糖和胰岛素调节的新基因MSAG的鉴定

获取原文
获取原文并翻译 | 示例
           

摘要

Identification and characterization of novel genes involved in derangement of metabolisms of glucose and triglycerides are important in understanding the development of metabolic syndrome (MS) and atherosclerosis. Model rats with certain phenotypes of MS were fed a high-carbohydrate diet. The rat hepatic subtracted cDNA libraries were constructed and screened. A novel cDNA of full length was identified by screening of a human hepatic cDNA library with a mixture of probes of the differentially expressed fragments from the rat hepatic subtracted cDNA libraries. The corresponding gene of the cDNA was temporarily named metabolic syndrome-associated gene (MSAG). The predicted protein encoded by MSAG contains 110 amino acids and has a theoretical molecular weight of 11667.04 and an isoelectric point of 4.91. Compared with the housekeeping gene of β-actin, MSAG had low transcription activity. However, the mRNA level of MSAG in HepG2 cells, a human hepatoma cell line, was significantly increased by glucose and decreased by insulin concentrations higher than physiological levels. These results suggest that MSAG may be involved in the metabolism and/or its regulation of glucose, the functioning of insulin under non-physiological conditions, and further in the development of metabolic syndrome.
机译:鉴定和表征涉及葡萄糖和甘油三酸酯代谢紊乱的新基因对于理解代谢综合征(MS)和动脉粥样硬化的发展非常重要。给患有某些MS表型的模型大鼠喂食高碳水化合物饮食。构建并筛选了大鼠肝消减cDNA文库。通过用来自大鼠肝减去cDNA文库的差异表达片段的探针混合物筛选人肝cDNA文库,鉴定出全长的新cDNA。 cDNA的相应基因暂时称为代谢综合征相关基因(MSAG)。 MSAG编码的预测蛋白质包含110个氨基酸,理论分子量为11667.04,等电点为4.91。与β-肌动蛋白管家基因相比,MSAG的转录活性较低。但是,人肝癌细胞HepG2细胞中MSAG的mRNA水平因葡萄糖而显着增加,而胰岛素浓度高于生理水平,则降低。这些结果表明,MSAG可能参与葡萄糖的代谢和/或其调节,在非生理条件下胰岛素的功能,并进一步参与代谢综合征的发展。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号