Differentiation of Wild-Type and CRISPR-Modified Colon Cancer Cells Using Brillouin Microscopy

TL;DR

This paper demonstrates that Brillouin microscopy can non-invasively distinguish between wild-type and CRISPR-modified colon cancer cells based on their mechanical properties, offering a new tool for cancer diagnostics.

Contribution

The study introduces the use of Brillouin microspectroscopy to differentiate genetically modified cancer cells by their mechanical responses, a novel application in cellular biomechanics.

Findings

WT and CRISPR-modified cells show distinct Brillouin shifts.

Brillouin microscopy can classify cells based on stiffness and viscosity.

Results support potential for non-invasive cancer diagnostics.

Abstract

This study investigates the mechanical properties of colon cancer cells through Brillouin microscopy, focusing on the differentiation between wild-type (WT) and CRISPR-modified cells. Brillouin microspectroscopy, a non-invasive technique, was employed to measure Brillouin shifts and full width at half maximum (FWHM) values of the cells in vitro. Using a custom-built confocal Brillouin microspectrometer, both WT and CRISPR-modified cells exhibited distinct mechanical responses. Statistical analysis revealed that WT cells had different stiffness and viscosity compared to CRISPR-modified cells, as indicated by their Brillouin shift and FWHM values. The data suggest that Brillouin spectroscopy offers a viable method to differentiate between normal and mutated cells at the subcellular level, providing new insights into cellular mechanical properties relevant to cancer research. These findings hold potential for advancing non-invasive diagnostic techniques and understanding cellular mechanics in oncology.