Molecular mechanocytometry using tension-activated cell tagging.

Area of Science:

• Biotechnology
• Cell Biology
• Biophysics

Background:

• Flow cytometry is a standard technique for analyzing single-cell properties.
• Current methods often rely on fluorescent labeling of intracellular molecules or surface markers.

Purpose of the Study:

• To introduce tension-activated cell tagging (TaCT), a novel method for cell labeling.
• To demonstrate TaCT's ability to quantify molecular forces transmitted through cell adhesion receptors.

Main Methods:

• TaCT utilizes fluorescent labeling based on the magnitude of molecular force.
• Cells are analyzed using conventional flow cytometry after applying TaCT.

Main Results:

• TaCT successfully labeled cells based on force transmission.
• Proof-of-concept analysis was performed on fibroblasts and mouse platelets.

Conclusions:

• TaCT provides a new approach to study cell mechanics at the single-cell level.
• This technique offers insights into the role of molecular forces in cellular processes.