植物化学物质通过调节焦点粘附来调节纤维细胞迁移
Ravindra K Zirmire1,2, Dyuti Saha1,3, Rakesh Dey1
1IFOM-inStem Joint Research Laboratory, Centre for Inflammation and Tissue Homeostasis, Institute for Stem Cell Science and Regenerative Medicine (inStem), Bangalore, Karnataka 560065, India.
iScience
|April 1, 2024
概括
巴科巴蒙尼耶里提取物通过增强纤维细胞迁移来加速伤口愈合. 这项研究揭示了其机制涉及通过alpha5beta1整蛋白和焦粘附激酶 (FAK) 途径调节焦粘附.
科学领域:
- 药理学 药理学是指药理学的学科.
- 细胞生物学 细胞生物学
- 皮肤病学 皮肤病学
背景情况:
- 巴科帕蒙尼耶里含有具有传统医疗用途的植物化学物质.
- 最近的研究表明,Bacopa monnieri可以加速伤口愈合,但机制尚不清楚.
- 人体皮肤纤维细胞对于伤口愈合过程至关重要.
研究的目的:
- 研究人类皮肤纤维细胞中Bacopa monnieri提取物激活的细胞通路.
- 阐明巴科巴蒙尼耶里 (Bacopa monnieri) 对伤口愈合的影响机制.
- 确定纤维细胞迁移在Bacopa monnieri的伤口愈合作用中的作用.
主要方法:
- 用Bacopa monnieri提取物治疗的人体皮肤纤维细胞的基因表达分析.
- 评估纤维细胞迁移,焦点粘附大小和数量.
- 对α5β1整合素激活和焦粘附激酶 (FAK) 酸化的分析.
主要成果:
- 巴科巴蒙尼耶里提取物调节关键的伤口愈合过程,包括迁移,增殖和血管生成.
- 纤维细胞迁移通过调节焦点粘附动态而被提取物增强.
- 由Bacopa monnieri引起的焦点粘附变化取决于alpha5beta1整合素和FAK激活.
结论:
- 巴科巴蒙尼耶里提取物通过增强纤维细胞迁移到伤床来促进伤口愈合.
- 提取物的机制涉及alpha5beta1整蛋白/FAK信号通路.
- 巴科帕蒙尼埃里显示出作为改善伤口愈合率的治疗剂的潜力.
相关概念视频
Introduction to Fibroblasts
3.1K
Rudolph Virchow discovered spindle-shaped cells called fibroblasts in 1858. Inactive fibroblasts, called fibrocytes, become activated by various stimuli, such as growth factors and inflammatory cytokines. Activated fibroblasts play a crucial role in wound healing, inflammation, formation of new blood vessels, and cancer progression. Uncontrolled activation of fibroblasts results in fibrosis, the excess deposition of fibrous tissue, which can lead to scarring and affect normal organs. This...
3.1K
Cell Migration
4.8K
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.
4.8K
Intracellular Signaling Affects Focal Adhesions
2.7K
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...
Some...
2.7K
Cytoskeletal Coordination in Cell Migration
4.8K
A migrating cell changes its shape during the cyclic events of attachment and detachment from the substratum and repositions the cell organelles correspondingly. These complex events are orchestrated by the dynamic cytoskeletal network comprising actin filaments, intermediate filaments, and microtubules. Cytoskeletal crosstalk — the direct and indirect communication between the different components — is crucial for this coordination. Direct communication involves various linker...
4.8K
Cell Motility through Blebbing
1.9K
Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
Blebbing Through the Matrix
In multicellular...
Blebbing Through the Matrix
In multicellular...
1.9K
Cell Polarization by Rho Proteins
2.7K
Cell polarity is the asymmetric distribution of cellular and membrane components, making one side of the cell different from the other. This polarity is essential to many processes such as embryogenesis, axon migration, glucose transport across epithelial cells, and directional cell migration. A migrating cell responds to intracellular or extracellular signals via molecular cascades that reorganize the actin cytoskeleton to establish this polarity. In these cells, the Rho family proteins Cdc42,...
2.7K


