How to Measure "Spillover Spread"

Area of Science:

• Immunology
• Biotechnology
• Analytical Chemistry

Background:

• Flow cytometry (FC) is a vital single-cell analysis technique developed in the late 1960s.
• It enables high-throughput measurement of cellular characteristics, crucial for clinical and research applications.
• Modern FC instruments can analyze over 40 parameters simultaneously, with immunophenotyping being a common assay.

Purpose of the Study:

• To introduce two novel methods for quantifying spectral spread in flow cytometry.
• To provide tools for researchers to better understand and manage data spread caused by spectral spillover.
• To assist in the experimental design of polychromatic panels and instrument quality control.

Main Methods:

• The study discusses two distinct methods for identifying and measuring spectral spread.
• These methods are applicable to any combination of fluorochromes used in flow cytometry.
• Quantification of spectral spread is achieved through analysis of fluorescence data.

Main Results:

• The developed methods provide a quantitative measure of spectral spread for various fluorochrome combinations.
• The output from these methods is valuable for optimizing experimental design in flow cytometry.
• These methods aid in monitoring the quality and performance of flow cytometers.

Conclusions:

• Accurate quantification of spectral spread is essential for robust flow cytometry data analysis.
• The presented methods offer practical solutions for addressing spectral overlap challenges.
• Implementing these methods can lead to improved experimental design and more reliable research outcomes.