综述 REVIEW

动物胃肠道氨基酸感应与转运

  • 王绿阳 ,
  • 李英英 ,
  • 李忠鑫 ,
  • 杭苏琴
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  • 南京农业大学动物科技学院, 国家动物消化道营养国际联合研究中心, 江苏省消化道营养与动物健康重点实验室, 南京农业大学消化道微生物研究室, 南京 210095
王绿阳(1994-),女,河南平顶山人,硕士研究生,从事猪胃肠营养感应的研究。E-mail:2018105079@njau.edu.cn

收稿日期: 2019-12-10

  网络出版日期: 2020-07-15

基金资助

国家重点基础研究发展计划(973项目)(2013CB127300)

Amino Acid Sensing and Transport in Animal Gastrointestinal Tract

  • WANG Lyuyang ,
  • LI Yingying ,
  • LI Zhongxin ,
  • HANG Suqin
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  • National Center for International Research on Animal Gut Nutrition, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China

Received date: 2019-12-10

  Online published: 2020-07-15

Supported by

 

摘要

动物胃肠道中不同类型的内分泌细胞构成了"胃肠道内分泌系统"。饲粮中的蛋白质在动物胃肠道被分解为氨基酸后,能够被内分泌细胞膜上的氨基酸感应受体所识别,介导激素的分泌,调控胃肠道生理活动。位于肠上皮细胞的氨基酸转运载体通过哺乳动物雷帕霉素靶蛋白复合物1(mTORC1)和一般性调控阻遏蛋白激酶2(GCN2)信号通路调控细胞氨基酸代谢。本文就动物胃肠道内分泌系统、氨基酸感应受体与转运载体以及氨基酸感知信号通路等方面研究进展进行综述。

本文引用格式

王绿阳 , 李英英 , 李忠鑫 , 杭苏琴 . 动物胃肠道氨基酸感应与转运[J]. 动物营养学报, 2020 , 32(7) : 3031 -3038 . DOI: 10.3969/j.issn.1006-267x.2020.07.011

Abstract

Various kinds of endocrine cells constitute the "gastrointestinal endocrine system" in animal gastrointestinal tract. Dietary proteins are degraded into amino acids and sensed by amino acid sensing receptors on the membrane of endocrine cells. Therefore, it can mediate the secretion of hormones and regulate the physiological functions of the gastrointestinal tract. Amino acid transporters, located in intestinal epithelial cells, regulate amino acid metabolism through the mammalian target of rapamycin complex 1 (mTORC1) and the general control nonderepressible 2 (GCN2) signaling pathways. In this review, we summarize the progress of animal gastrointestinal endocrine system, amino acid sensing receptors, transporters and signaling pathways.

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