相关实验视频

Updated: Jan 8, 2026

Author Spotlight: Investigating Islet Abnormalities and Function with a Pseudoislet Protocol
08:04

Author Spotlight: Investigating Islet Abnormalities and Function with a Pseudoislet Protocol

Published on: November 3, 2023

2.4K

TAS1R3 影响人类小岛 β 细胞中的 GTP 酶依赖信号传递

Rajakrishnan Veluthakal1, Miwon Ahn1, Eunjin Oh1

  • 1Department of Molecular and Cellular Endocrinology, Arthur Riggs Diabetes and Metabolism Research Institute of City of Hope, Duarte, CA, United States.

Frontiers in endocrinology
|December 24, 2025
PubMed
概括

味觉受体TAS1R3通过激活GTPase信号,对胰腺β细胞中葡萄糖刺激的胰岛素分泌至关重要. 在2型糖尿病中TAS1R3水平的降低表明它是2型糖尿病.

关键词:
G-蛋白质是一种G-蛋白质.在GPCR中,GPCR是指GPCR.在CAMP中,我们可以使用cAMP.人类岛屿小岛.2 型糖尿病 2 型糖尿病

更多相关视频

A Method for Mouse Pancreatic Islet Isolation and Intracellular cAMP Determination12:33

A Method for Mouse Pancreatic Islet Isolation and Intracellular cAMP Determination

Published on: June 25, 2014

66.0K
Lentiviral Mediated Gene Silencing in Human Pseudoislet Prepared in Low Attachment Plates11:24

Lentiviral Mediated Gene Silencing in Human Pseudoislet Prepared in Low Attachment Plates

Published on: May 14, 2019

5.8K

相关概念视频

TGF - β Signaling Pathway01:16

TGF - β Signaling Pathway

The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
10.4K
Insulin: The Receptor and Signaling Pathways01:28

Insulin: The Receptor and Signaling Pathways

Insulin action is mediated through a receptor tyrosine kinase, akin to the IGF-1 receptor. The number of receptors per cell varies significantly, from 40 on erythrocytes to 300,000 on adipocytes and hepatocytes. The insulin receptor consists of linked α/β subunit dimers, forming a heterotetramer glycoprotein with two extracellular α subunits and two β subunits spanning the membrane. The α subunits inhibit the inherent tyrosine kinase activity of the β subunits, but...
2.6K
Glucose Homeostasis: Pancreatic Islets and Insulin Secretion01:27

Glucose Homeostasis: Pancreatic Islets and Insulin Secretion

The pancreatic islets comprising only 1%-2% of the volume are highly vascularized and innervated mini-organs. They contain five endocrine cell types, including β cells that secrete insulin, which is synthesized as a single polypeptide chain, preproinsulin, processed to proinsulin, and finally to insulin and C-peptide. This process is complex and regulated, involving the Golgi complex, the endoplasmic reticulum, and the secretory granules of the β cell.
Insulin and C-peptide are...
2.1K
PI3K/mTOR/AKT Signaling Pathway01:22

PI3K/mTOR/AKT Signaling Pathway

The mammalian target of rapamycin  (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1  (mTORC1) and mTOR complex 2  (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast,  mTORC2 consists of a...
5.2K
Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
3.4K
Insulin Secretory Vesicles01:05

Insulin Secretory Vesicles

Insulin secretory vesicles release insulin to stimulate blood glucose uptake and regulate carbohydrate metabolism. When the blood glucose levels increase, glucose enters the pancreatic β-islet cells through glucose transporters. Once inside, glucose is metabolized through glycolysis, the citric acid cycle, and the electron transport chain, producing ATP. This increase in ATP concentration closes ATP-sensitive potassium channels, leading to depolarization of the membrane and the opening of...
6.3K