相关实验视频

Updated: Jul 15, 2026

Remote Limb Ischemic Preconditioning: A Neuroprotective Technique in Rodents

Remote Limb Ischemic Preconditioning: A Neuroprotective Technique in Rodents

Published on: June 2, 2015

普罗波通过保护PI3K/AKT/GIT1轴来缓解脊髓缺血-再输液损伤

Yilin Zhou¹, Yuyan Bai¹, Peisen Zhang¹

¹Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, P.R. China.

Journal of investigative medicine : the official publication of the American Federation for Clinical Research

|May 8, 2024

概括

普罗波通过激活PI3K/AKT通路,增加G蛋白合受体相互作用蛋白1 (GIT1) 的表达,并减少神经损伤,从而防止脊髓缺血-再输液损伤 (SCIRI).

科学领域:

神经科学是一个神经科学.
药理学药理学是指药理学的学科.
细胞生物学细胞生物学

背景情况:

脊髓缺血-再输损伤 (SCIRI) 导致显著的神经缺陷和死亡率.
了解SCIRI背后的分子机制对于开发有效治疗方法至关重要.

研究的目的:

在SCIRI的老鼠模型中研究醇和G蛋白合受体相互作用蛋白1 (GIT1) 的保护机制.
阐明PI3K/AKT信号通路在由普罗波介导的SCIRI防护中的作用.

主要方法:

建立SCIRI大鼠模型,使用普罗波福,GIT1过度表达 (OE-GIT1) 或PI3K抑制剂 (LY294002) 治疗.
评估神经功能 (塔洛夫分数),脊髓形态 (H&E染色),亡 (TUNEL),血脊髓屏障 (BSCB) 透性 (埃文斯蓝色) 和炎症性细胞因子 (ELISA).
对GIT1,eNOS,PI3K/AKT通路组件以及与亡相关的蛋白质的基因和蛋白质表达水平 (RT-qPCR,西斑) 的分析.

主要成果:

在SCIRI大鼠中,GIT1和PI3K/AKT通路蛋白表达减少.
普罗波治疗增加了GIT1和PI3K/AKT通路蛋白表达,改善了神经功能,减少了组织损伤,BSCB透性,亡和炎症.
抑制PI3K/AKT与LY294002的信号传递部分逆转了普罗波的保护作用,并降低了GIT1的表达.

结论:

普罗波通过激活PI3K/AKT信号通路,在SCIRI中产生神经保护作用.
这种激活导致GIT1表达的增加,这有助于SCIRI的减弱.
针对普罗波-GIT1-PI3K/AKT轴可能为SCIRI提供治疗策略.

关键词:

在GIT1中,GIT1是GIT1.在PI3K/AKT中使用.普罗波福尔 (Propofol) 是一种这是一种炎症炎症炎症炎症.脊髓缺血-再输液损伤的脊髓缺血-再输液损伤

更多相关视频

A Neurosphere Assay to Evaluate Endogenous Neural Stem Cell Activation in a Mouse Model of Minimal Spinal Cord Injury

A Neurosphere Assay to Evaluate Endogenous Neural Stem Cell Activation in a Mouse Model of Minimal Spinal Cord Injury

Published on: September 13, 2018

Real-Time Assessment of Spinal Cord Microperfusion in a Porcine Model of Ischemia/Reperfusion

Real-Time Assessment of Spinal Cord Microperfusion in a Porcine Model of Ischemia/Reperfusion

Published on: December 10, 2020

相关概念视频

PI3K/mTOR/AKT Signaling Pathway

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 rapamycin-insensitive companion...

Parenteral Anesthetics: Overview

Parenteral Anesthetics: Overview

Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.