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Techniques to Induce and Quantify Cellular Senescence
Published on: May 1, 2017
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ImageJ-based semiautomatic method to analyze senescence in cell culture
Javier Lozano-Gerona1, Ángel-Luis García-Otín1
1Aragon Institute of Health Sciences & IIS Aragon, 50009, Zaragoza, Spain.
Analytical Biochemistry
|December 3, 2017
Summary
This study introduces an ImageJ macro for analyzing X-gal stained senescent cells. The new method automates the quantification of beta-galactosidase activity, overcoming limitations of manual counting.
Area of Science:
- Cell Biology
- Biochemistry
- Bioimaging
Background:
- Beta-galactosidase is a marker for cellular senescence, accumulating in lysosomes.
- X-gal staining detects beta-galactosidase activity in senescent cells.
- Quantifying senescent cells via X-gal staining is challenging due to the organelle nature of the stain.
Purpose of the Study:
- To develop a computational method for analyzing X-gal stained senescent cells.
- To overcome the limitations of manual counting and flow cytometry for senescent cell quantification.
Main Methods:
- Development of an analysis strategy for X-gal stained cell images.
- Implementation of the strategy as an ImageJ macro.
- Computational analysis of organelle staining.
Main Results:
- The ImageJ macro provides an automated analysis strategy for X-gal stained cells.
- This method overcomes drawbacks associated with manual counting and other computational techniques.
- Enables more efficient and accessible quantification of senescent cells.
Conclusions:
- The developed ImageJ macro offers a practical solution for quantifying senescent cells based on X-gal staining.
- This approach enhances the accessibility of senescent cell analysis in research settings.
- Automated analysis of organelle staining is feasible and beneficial.
