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Cell shape changes and detachment in cell culture: models of renal injury
1Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205.
Abstract:
Loss of tubular cell adhesion may be important in the pathophysiology of injury to renal tubular cell epithelium. In-vitro model systems have been utilized to examine altered cell adhesion in response to hypoxic/anoxic and oxidant-induced cell injury. Alterations in cell cytoskeleton and cell surface adhesion molecules, including L-CAM and integrins, have been demonstrated in these systems, and are probably important in the pathogenesis of altered structure and function in response to injury in renal tubular epithelium.
Insights
Loss of cell adhesion in kidney tubules is key to epithelial injury. In-vitro studies show hypoxia and oxidants alter cell cytoskeleton and adhesion molecules like L-CAM and integrins, impacting kidney structure and function.
Area of Science:
- Nephrology
- Cell Biology
- Pathophysiology
Background:
- Renal tubular cell injury is a significant clinical concern.
- Altered cell adhesion is implicated in the pathophysiology of kidney injury.
- In-vitro models are crucial for studying cellular responses to injury.
Purpose of the Study:
- To investigate the role of tubular cell adhesion in renal epithelial injury.
- To examine how hypoxia/anoxia and oxidants affect cell adhesion in vitro.
- To identify changes in the cell cytoskeleton and adhesion molecules during injury.
Main Methods:
- Utilized in-vitro model systems of renal tubular cells.
- Exposed cells to hypoxic/anoxic conditions.
- Induced cell injury using oxidants.
Main Results:
- Demonstrated alterations in tubular cell adhesion under hypoxic/anoxic and oxidant stress.
- Observed changes in the cell cytoskeleton.
- Identified modifications in cell surface adhesion molecules, including L-CAM and integrins.
Conclusions:
- Loss of tubular cell adhesion is likely important in renal tubular epithelium injury.
- Hypoxia, anoxia, and oxidants induce changes in cell cytoskeleton and adhesion molecules.
- These alterations contribute to the pathogenesis of structural and functional changes in injured renal tubular epithelium.
