A survey of membrane receptor regulation in valvular interstitial cells cultured under mechanical stresses
| Autor: | Mir S. Ali, Xinmei Wang, Carla M. R. Lacerda |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Swine Primary Cell Culture Cell Core Binding Factor Alpha 1 Subunit 030204 cardiovascular system & hematology Biology Mechanotransduction Cellular Interactome Thrombospondin 1 03 medical and health sciences 0302 clinical medicine Cell surface receptor medicine Animals Gene Regulatory Networks Myofibroblasts Receptor chemistry.chemical_classification Thrombospondin Tumor Necrosis Factor-alpha Gene Expression Profiling valvular heart disease Cell Biology Vascular Endothelial Growth Factor Receptor-3 medicine.disease Heart Valves Biomechanical Phenomena Cell biology 030104 developmental biology medicine.anatomical_structure Gene Expression Regulation chemistry Cytokines Mechanosensitive channels Stress Mechanical Glycoprotein |
| Zdroj: | Experimental Cell Research. 351:150-156 |
| ISSN: | 0014-4827 |
| DOI: | 10.1016/j.yexcr.2017.01.007 |
| Popis: | Degenerative valvular diseases have been linked to the action of abnormal forces on valve tissues during each cardiac cycle. It is now accepted that the degenerative behavior of valvular cells can be induced mechanically in vitro. This approach of in vitro modeling of valvular cells in culture constitutes a powerful tool to study, characterize, and develop predictors of heart valve degeneration in vivo. Using such in vitro systems, we expect to determine the exact signaling mechanisms that trigger and mediate propagation of degenerative signals. In this study, we aim to uncover the role of mechanosensing proteins on valvular cell membranes. These can be cell receptors and triggers of downstream pathways that are activated upon the action of cyclical tensile strains in pathophysiological conditions. In order to identify mechanosensors of tensile stresses on valvular interstitial cells, we employed biaxial cyclic strain of valvular cells in culture and quantitatively evaluated the expression of cell membrane proteins using a targeted protein array and interactome analyses. This approach yielded a high-throughput screening of all cell surface proteins involved in sensing mechanical stimuli. In this study, we were able to identify the cell membrane proteins which are activated during physiological cyclic tensile stresses of valvular cells. The proteins identified in this study were clustered into four interactomes, which included CC chemokine ligands, thrombospondin (adhesive glycoproteins), growth factors, and interleukins. The expression levels of these proteins generally indicated that cells tend to increase adhesive efforts to counteract the action of mechanical forces. This is the first study of this kind used to comprehensively identify the mechanosensitive proteins in valvular cells. |
| Databáze: | OpenAIRE |
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