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Evaluation of Bioenergetic Function in Cerebral Vascular Endothelial Cells
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Mechanical load increase-induced changes in cytoskeletal structure and cellular barrier function in human cerebral
1Department of Biological Engineering, Inha University, Incheon, South Korea.
Biotechnology and Bioengineering
|June 14, 2018
Summary
Hypergravity exposure reversibly weakens the brain
Area of Science:
- Neuroscience
- Cell Biology
- Biomedical Engineering
Background:
- Neurological disorders affect a billion people globally.
- The blood-brain barrier (BBB) restricts central nervous system drug delivery.
- Novel strategies are needed to enhance brain drug delivery.
Purpose of the Study:
- To investigate hypergravity as a method to overcome the BBB.
- To assess the impact of mechanical load on brain endothelial cells.
- To evaluate hypergravity's potential for improving drug transport.
Main Methods:
- Human cerebral microvascular endothelial cells exposed to 10g hypergravity.
- Three 20-minute exposures with 20-minute rest periods.
- Assessed cell metabolic activity, permeability, and gene expression.
Main Results:
- Hypergravity reversibly decreased cellular metabolic activity.
- Increased permeation of small molecules and dextran (FD-4) across the barrier.
- Observed structural changes in cytoskeleton and tight junctions.
Conclusions:
- Increased mechanical load via hypergravity alters endothelial cell structure and barrier function.
- Hypergravity enhances paracellular pathway permeability.
- Hypergravity presents a novel strategy for overcoming the BBB for brain drug delivery.
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