Controls for flow cytometers in hematology and cellular immunology

Area of Science:

• Clinical laboratory diagnostics
• Biomedical engineering
• Immunology

Background:

• Clinical flow cytometry requires precise calibration, often hampered by the need for fresh samples.
• Current stabilized controls in hematology have limitations in mimicking whole blood and ensuring consistent inter-instrument performance.
• Advanced hematology analyzers and emerging immunological applications necessitate more sophisticated control materials.

Purpose of the Study:

• To address the limitations of current control materials for flow cytometry in clinical settings.
• To explore and develop novel control materials for both instrument calibration and reagent validation.
• To enhance the reliability and applicability of flow cytometry in clinical diagnostics and immunology.

Main Methods:

• Evaluation of fluorochrome-stained cell nuclei as an instrument control for immunofluorescence analyses.
• Development of approaches to stabilize cellular antigenic properties for monoclonal antibody staining.
• Discussion of practical aspects of current and future hematology controls.

Main Results:

• Fluorochrome-stained cell nuclei show promise as a reliable instrument control and calibration tool.
• Development is underway for stabilized cell preparations with antigenic properties for reagent control.
• The study outlines strategies for improved control materials in hematology and immunology.

Conclusions:

• Novel control materials, including stained cell nuclei and antigenically stabilized cells, are crucial for advancing clinical flow cytometry.
• These innovations aim to overcome the challenges posed by fresh sample requirements and improve inter-instrument consistency.
• The development of robust controls will significantly benefit hematology and immunology diagnostics.