A cell migration device that maintains a defined surface with no cellular damage during wound edge generation

Area of Science:

• Biomaterials Science
• Cell Biology
• Tissue Engineering

Background:

• Cell migration is crucial for understanding cell biology and tissue engineering.
• Traditional assays like fence and wound healing have limitations in surface control.

Purpose of the Study:

• To develop and validate a microchannel-based device for studying cell migration.
• To provide a superior method for assessing cell wave front propagation rates.
• To enable cell migration studies on pristine, defined surfaces.

Main Methods:

• Development of a microchannel device for controlled cell migration.
• Functionalization of surfaces within the microchannels with extracellular matrix proteins.
• Assessment of cell migration rates using mouse fibroblasts (NIH 3T3) and human osteosarcoma (SaOS2) cells.

Main Results:

• The microchannel device offers superior assessment of cell wave front propagation compared to traditional assays.
• Consistent and robust cell migration data was obtained.
• The device allows for rapid assessment of multiple conditions on a single chip with unexposed surfaces.

Conclusions:

• The microchannel device is an advanced tool for studying cell migration.
• It ensures surface integrity, leading to more reliable and reproducible data.
• This technology enhances the assessment of cell behavior on functionalized surfaces for tissue engineering applications.