# Impact of Triton X-100 on Notch 1 Surface Receptor Immunofluorescence: A Cautionary Study

## TL;DR

This study shows that using Triton X-100 can lead to false results when measuring surface receptor proteins like Notch 1 through immunofluorescence.

## Contribution

The study highlights the inappropriateness of Triton X-100 for surface receptor immunofluorescence and provides a cautionary method for accurate analysis.

## Key findings

- Triton X-100 disrupts cell membranes and causes false protein expression in immunofluorescence.
- Cells without Triton X-100 treatment show fluorescence proportional to actual Notch 1 receptor presence.
- The method can be applied to accurately analyze any surface receptor protein.

## Abstract

Triton X-100 is a cell-permeabilizing agent, widely used in molecular studies to enhance the permeability of cellular membranes. It has detrimental effects on the cell surface receptors thereby not suitable for surface receptor protein studies. Therefore, in the present study the protein expression of Notch surface receptor was analyzed with and without exposure of cell surfactant i.e. Triton X-100. It was observed that cultured cortical cells treated with Triton X-100 gave false protein expression due to the disruption of cellular membrane. On the contrary, cells without surfactant treatment exhibit fluorescence proportional to the true presence of Notch 1 receptors. This method can be followed for the analysis of any surface receptor protein through immunofluorescence to exclude any false expression.