Determination of surface antigens using the Coulter counter: a simple highly sensitive method

Area of Science:

• Immunology
• Cell Biology
• Biotechnology

Background:

• Cell surface antigen detection is crucial for immunological studies.
• Existing methods like vital dye exclusion and radionuclide labeling for viability determination can be inconvenient.
• There is a need for more efficient and accessible methods to assess cell death.

Purpose of the Study:

• To develop a novel, convenient method for analyzing cell death induced by immune cytolysis.
• To utilize an electronic particle analyzer for cell viability assessment.
• To compare the new method with established viability assays.

Main Methods:

• Immune cytolysis was induced using antisera and complement.
• Cell viability was analyzed using a Coulter counter, an electronic particle analyzer.
• Results were compared against the gold standard Trypan blue dye exclusion test.

Main Results:

• The Coulter counter method accurately determined cell viability after immune cytolysis.
• The results showed a strong correlation with the Trypan blue dye exclusion test.
• This electronic method provides a convenient alternative for cell death analysis.

Conclusions:

• A novel and convenient method for assessing cell death due to immune cytolysis has been established using an electronic particle analyzer.
• This Coulter counter-based approach offers a reliable alternative to traditional viability assays.
• The methodology has potential for broader applications in immunological and cell biology research.