基因和蛋白质的定量与内皮细胞的功能在不同的运动诱导的切割应激强度后在体外
Daniel Conde1,2, Manuel Gomez1,3, Alvaro N Gurovich1,2
1Clinical Applied Physiology (CAPh) Lab, The University of Texas at El Paso, El Paso, TX 79968, USA.
Biology
|September 27, 2025
概括
这项研究引入了一个标准化的协议,用于在细胞培养中复制体内运动诱导的内皮切割应力 (ESS). 这种方法可以更好地了解心血管对不同强度运动的反应,从而促进内皮功能研究.
科学领域:
- 心血管研究研究心血管研究
- 细胞生物学 细胞生物学
- 运动生理学 运动生理学
背景情况:
- 内皮切削应力 (ESS) 在心血管研究中至关重要.
- 现有的细胞培养模型在各种运动强度中努力在体内精确复制ESS.
- 需要一个标准化的协议来弥合体内和体外ESS研究之间的差距.
研究的目的:
- 开发和描述一种标准化的协议,用于将体内运动数据转化为与生理相关的体内内皮质剪切应力 (ESS) 水平.
- 为了使在运动诱导的ESS下研究内皮细胞中的分子反应.
- 为研究运动强度对内皮细胞的特定影响提供一个模型.
主要方法:
- 整合人类运动数据以确定ESS水平 (1860 dyn/cm2).
- 使用伊比迪系统,将计算ESS应用于人静脉内皮细胞 (HUVEC).
- 随后的分子分析包括西斑,免疫细胞化学和逆转录聚合酶链反应.
主要成果:
- 该协议成功地在体外产生了生理学上相关的ESS水平,模仿休息到高强度运动.
- 证明了在HUVEC中研究运动诱导的蛋白质和基因表达变化的可行性.
- 该模型可以适应各种运动强度,尽管该示例专注于低强度的ESS.
结论:
- 该协议为体外ESS研究提供了标准化的方法,增强了细胞培养研究在心血管研究中的翻译相关性.
- 它促进了对不同强度运动的内皮反应背后的分子机制的研究.
- 开发的模型为未来关于运动,内皮功能和心血管健康的研究提供了有价值的工具.
更多相关视频
相关概念视频
Cell Migration
Cell migration, the process by which cells move from one location to another, is essential for the proper development and viability of organisms throughout their life. When cells are not able to migrate properly to their ordained locations, various disorders may occur. For example, disruption in cell migration causes chronic inflammatory diseases such as arthritis.
Mechanical Protein Functions
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.
Structural Protein Function
Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to form...
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to form...
Cell Specific Gene Expression
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
Cell Migration
Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
Cellular Differentiation
How does a complex organism such as a human develop from a single cell? It all starts from a single fertilized egg which gives rise to a vast array of cell types, such as nerve cells, muscle cells, and epithelial cells that characterize the adult? Throughout development and adulthood, cellular differentiation leads cells to assume their final morphology and physiology. Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions.
A zygote is a...
A zygote is a...


