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Cell viability assessment by using GelRed/SYTO 9-based double staining.

Yueping Zheng1, Jian Sun2, Xiaocui Li2

  • 1Minxi Vocational & Technical College, Longyan, Fujian 364030, People's Republic of China.

Methods and Applications in Fluorescence
|January 14, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a new GelRed and SYTO 9 double staining method for accurate cell viability assessment. This safer nucleic acid dye approach effectively distinguishes dead cells, improving toxicological and pharmaceutical research.

Keywords:
GelRedSYTO 9cell viabilityflow cytometryprodium iodide

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Area of Science:

  • Biotechnology
  • Cell Biology
  • Toxicology

Background:

  • Cell viability assessment is critical in biological research, drug development, and toxicology.
  • Existing methods for cell viability assessment can be limited in accuracy and safety.

Purpose of the Study:

  • To develop and validate a novel double staining method using GelRed and SYTO 9 for accurate cell viability assessment.
  • To compare the efficacy of the GelRed/SYTO 9 method with traditional methods like propidium iodide (PI) staining.

Main Methods:

  • Optimization of GelRed and SYTO 9 concentrations for maximal dead-to-live cell fluorescence ratio.
  • Application of the optimized double staining in flow cytometry analysis.
  • Correlation analysis between detected and theoretical dead cell ratios.

Main Results:

  • The GelRed/SYTO 9 double staining method clearly differentiated live and dead cells based on fluorescence spectra.
  • Optimized concentrations yielded high accuracy in quantifying cell viability.
  • The method demonstrated high accuracy in detecting low levels of dead cells, outperforming PI staining.

Conclusions:

  • The developed GelRed/SYTO 9 double staining method provides an accurate and sensitive approach for cell viability assessment.
  • This method is suitable for quantifying cytotoxic effects in biomedical research.
  • The use of GelRed offers a safer alternative for nucleic acid staining.