均轴和单轴循环菌株同样影响2D的Notch信号和血管光滑肌肉细胞表型
Cansu Karakaya1,2, Mark van Turnhout1, Eva A N van den Hurk1,2
1Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB, Eindhoven, the Netherlands.
概括
血管光滑肌细胞 (VSMCs) 对不同菌株类型的反应类似,这表明菌株异构性不会显著改变Notch信号或表型. 最大主应变是调节这些VSMC变化的关键.
科学领域:
- 生物医学工程 生物医学工程
- 细胞生物学 细胞生物学
- 机械生物学 机械生物学
背景情况:
- 血管光滑肌细胞 (VSMCs) 对于血管适应至关重要,对机械力做出反应.
- 诺奇信号通路调节VSMC的表型可塑性,以应对机械刺激.
- 复杂的机械环境对VSMC行为的影响,如应变异性,尚未完全理解.
研究的目的:
- 调查菌株异质性如何影响机械敏感的Notch信号和VSMC表型.
- 为了比较等轴向和单轴向应变对VSMC反应的影响.
- 为了确定主菌株衡量标准,控制Notch信号和VSMC表型.
主要方法:
- 在生理范围内的VSMC应用循环等轴和单轴应变.
- 分析了诺奇信号元件和VSMC收缩特性.
- 在不同的负载条件和变形特征下比较细胞反应.
主要成果:
- 均轴和单轴应变都减少了诺奇信号和VSMC收缩性质.
- 当考虑最大主应变时,Notch信号和收缩特征的下调可在等轴向和单轴向应变之间进行比较.
- 最大主要菌株成为影响Notch信号和VSMC表型的主导因素.
结论:
- 菌株异质性可能不会显著影响痕信号或VSMC表型切换.
- 大型形肌瘤对等轴向和单轴向的压力表现出类似的反应.
- 最大主要菌株是VSMC机械传导和表型调节的关键决定因素.
相关概念视频
Notch Signaling Pathway
4.5K
The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
4.5K
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
335
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
335
Normal Strain under Axial Loading
676
Normal strain under axial loading is an important concept in the field of mechanics of materials. Axial loading implies the application of a force along the axis of a material, like a column or bar. This force can either compress or stretch the material. In the context of axial loading, normal strain is the deformation experienced by the material in the direction of the loading force. It's calculated as the change in length divided by the original length of the material. This unitless ratio...
676
Cell-matrix's Response to Mechanical Forces
2.8K
In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue.
Anchoring junctions mechanically attach a cell to the...
Anchoring junctions mechanically attach a cell to the...
2.8K
Transformation of Plane Strain
250
When analyzing elongated structures like bars subjected to uniformly distributed loads, it is essential to understand the transformation of plane strain when coordinate axes are rotated. This transformation helps to assess how material deformation characteristics vary with orientation, which is crucial in materials science and structural engineering.
Under plane strain conditions, typical for members where one dimension significantly exceeds the others, deformations and resultant strains are...
Under plane strain conditions, typical for members where one dimension significantly exceeds the others, deformations and resultant strains are...
250


