Shear stress induces caveolin-1 translocation in cultured endothelial cells
R Sun, S Muller, J Stoltz, X Wang - European Biophysics Journal, 2002 - Springer
R Sun, S Muller, J Stoltz, X Wang
European Biophysics Journal, 2002•SpringerConsidering that vascular endothelial caveolae could be flow sensors converting
mechanical stimuli into chemical signals transmitted into the cell, this work studied, in vitro,
the change of caveolin-1 expression and distribution of cultured endothelial cells exposed to
laminar flows. Experimental results showed that, in control cells, caveolin-1 were primarily
localized on the cell surface, and presented some local concentrations. In cells exposed to
laminar flows, caveolin-1 distribution showed a time-dependent variation. After 24 h of shear …
mechanical stimuli into chemical signals transmitted into the cell, this work studied, in vitro,
the change of caveolin-1 expression and distribution of cultured endothelial cells exposed to
laminar flows. Experimental results showed that, in control cells, caveolin-1 were primarily
localized on the cell surface, and presented some local concentrations. In cells exposed to
laminar flows, caveolin-1 distribution showed a time-dependent variation. After 24 h of shear …
Abstract
Considering that vascular endothelial caveolae could be flow sensors converting mechanical stimuli into chemical signals transmitted into the cell, this work studied, in vitro, the change of caveolin-1 expression and distribution of cultured endothelial cells exposed to laminar flows. Experimental results showed that, in control cells, caveolin-1 were primarily localized on the cell surface, and presented some local concentrations. In cells exposed to laminar flows, caveolin-1 distribution showed a time-dependent variation. After 24 h of shear (1.0 Pa), the expression of caveolin-1 increased and a local caveolin-1 concentration was found, in most cells, at the upstream side of the cell body where the hydrostatic pressure and the spatial gradient of shear stress were at a maximum. As a comparison, tumor necrosis factor-α induced a decrease of caveolin-1 in the cells.
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