ATP luminescence-based motility-invasion assay

Area of Science:

• Cell biology
• Biotechnology
• Cancer research

Background:

• Traditional Boyden chamber and Transwell assays for cell motility and invasion have limitations.
• Quantifying nonmotile cell populations is a significant challenge in current assays.
• This prevents accurate determination of cell migration percentages.

Purpose of the Study:

• To develop a sensitive, easy, and reliable method for quantifying cell motility and invasion.
• To overcome the limitations of existing assays in accounting for all cell populations.
• To enable accurate measurement of directional cell migration and invasiveness.

Main Methods:

• Development of an ATP luminescence-based motility-invasion (ALMI) assay.
• Detection of ATP in viable cells harvested from inert surfaces.
• Assessment of cell migration under various conditions (e.g., growth factor stimulation, ethanol exposure).
• Measurement of cell invasion by precoating membranes with extracellular matrix molecules.

Main Results:

• The ALMI assay provides a sensitive and reliable method for quantifying cell migration and invasion.
• It accurately accounts for all cell populations within the assay chamber.
• The assay effectively measures the impact of different experimental conditions on cell motility.
• Invasion assays can be performed by modifying the membrane surface.

Conclusions:

• The ALMI assay offers a reliable and flexible solution for quantifying cell motility and invasiveness.
• It simplifies the process using a luminescence microplate reader.
• This assay enhances the accuracy and comprehensiveness of motility and invasion studies.