ADGRL1是一种参与调节能量和葡萄糖恒温的葡萄糖受体
Kavaljit H Chhabra1,2, Siresha Bathina3, Tumininu S Faniyan3
1Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. Kavaljit_Chhabra@URMC.Rochester.Edu.
研究人员发现粘附性G蛋白结合受体1 (ADGRL1) 在小鼠下丘脑中作为葡萄糖受体. ADGRL1在调节葡萄糖和能量平衡方面发挥着性别依赖的作用,为新的糖尿病和肥胖症治疗提供了潜力.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 代谢研究研究 代谢研究
背景情况:
- 大脑调节全身葡萄糖和能量平衡,利用葡萄糖作为主要的能量来源.
- 已知的葡萄糖转运体 (GLUT2,SGLT2) 影响葡萄糖平衡,但大脑的葡萄糖受体仍然未被确定.
- 识别这种受体对于理解大脑葡萄糖信号通路至关重要.
研究的目的:
- 在小鼠下丘脑中识别一种新的葡萄糖受体.
- 阐明这种受体在葡萄糖和能量恒温中的作用.
- 探索代谢障碍的潜在治疗点.
主要方法:
- 利用葡萄糖-生物聚合物和亲和染色法来丰富与葡萄糖结合的下丘脑神经元.
- 进行蛋白质组分析以确定候选葡萄糖受体,精确定位ADGRL1.
- 为表型分析和电生理学研究生成了全局和下丘脑特异性的Adgrl1-knockout小鼠.
主要成果:
- 粘附G蛋白结合受体1 (ADGRL1) 被确定为一种高表达的葡萄糖受体,在腹中介质下丘脑 (VMH).
- 在VMH小鼠中,Adgrl1缺乏导致胰岛素高血压,胰岛素耐药性,食反应受损,葡萄糖感应异常,体力活动减少.
- 在葡萄糖和能量稳态中ADGRL1的功能取决于性别,卵巢切除在雌性小鼠中揭示了它的贡献.
结论:
- ADGRL1直接与葡萄糖结合,并以性别特定的方式成为能量和葡萄糖平衡的组成部分.
- ADGRL1代表了2型糖尿病和肥胖症的潜在治疗标.
- 这一发现为开发一种用于代谢疾病的新类药物开辟了道路.
更多相关视频
10:35Extracellular Glucose Depletion as an Indirect Measure of Glucose Uptake in Cells and Tissues Ex Vivo
Published on: April 6, 2022
07:29Real-time Analysis of Gut-brain Neural Communication: Cortex wide Calcium Dynamics in Response to Intestinal Glucose Stimulation
Published on: December 29, 2023
相关概念视频
Glucose Homeostasis: Regulation of Blood Glucose
During fasting, when blood glucose levels are low, the pancreas secretes glucagon. it...
Hormones Regulating Blood Glucose
In addition to accelerating glucose uptake and utilization, insulin has...
Glucagon-like Receptor Agonists
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by...
Glucose Absorption Into the Small Intestine
Glucose Transporters
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Insulin: The Receptor and Signaling Pathways
