Journal
BIOMEDICINES
Volume 10, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/biomedicines10040828
Keywords
intermediate filaments; vimentin filaments; soluble vimentin; microtubules; actin; plectin; cell contacts; extracellular matrix; inflammation; atherosclerosis
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Funding
- Russian Science Foundation [22-25-00663]
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The endothelium plays a key role in the transcytosis of lipoproteins. Vimentin, as a main protein of endothelial intermediate filaments, is involved in cell polarization, migration, and control over endothelial cell functions. Vimentin also serves as an indicator of cardiovascular system state and participates in the development of atherosclerosis.
The endothelium plays an important role in the transcytosis of lipoproteins. According to one of the theories, endothelial injury is a triggering factor for the development of atherosclerosis, and intracellular structures, including components of the endotheliocyte cytoskeleton (microtubules, actin, and intermediate filaments), are involved in its development. In contrast to the proteins of tubulin-based microtubules and actin microfilaments, intermediate filaments are comprised of various tissue-specific protein members. Vimentin, the main protein of endothelial intermediate filaments, is one of the most well-studied of these and belongs to type-III intermediate filaments, commonly found in cells of mesenchymal origin. Vimentin filaments are linked mechanically or by signaling molecules to microfilaments and microtubules by which coordinated cell polarisation and migration are carried out, as well as control over several endotheliocyte functions. Moreover, the soluble vimentin acts as an indicator of the state of the cardiovascular system, and the involvement of vimentin in the development and course of atherosclerosis has been demonstrated. Here we discuss current concepts of the participation of vimentin filaments in the vital activity and functioning of endothelial cells, as well as the role of vimentin in the development of inflammatory processes and atherosclerosis.
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