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Updated: Feb 1, 2026

Single-cell Analysis of Immunophenotype and Cytokine Production in Peripheral Whole Blood via Mass Cytometry
Published on: June 26, 2018
One-Tube Multicolor Flow Cytometry Assay (OTMA) for Comprehensive Immunophenotyping of Peripheral Blood
Anna-Jasmina Donaubauer1, Paul F Rühle1, Ina Becker1
1Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
Insights
This study introduces a one-tube multicolor flow cytometry assay (OTMA) for comprehensive immune status determination. The assay efficiently identifies 20 immune cell subsets and 3 activation markers using minimal blood and preparation time.
Area of Science:
- Immunology
- Biotechnology
- Clinical Diagnostics
Background:
- Advancements in flow cytometry enable detailed immune profiling.
- Multicolor immunofluorescence panels are key to assessing immune status.
Purpose of the Study:
- To present a novel one-tube multicolor flow cytometry assay (OTMA).
- To enable comprehensive immune status determination.
- To facilitate translational research in clinical trials.
Main Methods:
- Developed a 15-antibody, 10-color flow cytometry panel.
- Utilized 100 μL of EDTA-treated whole blood.
- Assay preparation time under 40 minutes.
Main Results:
- Identified 20 distinct, clinically relevant immune cell subsets.
- Quantified three common immune activation markers.
- Provided a comprehensive overview of major immune cells.
Conclusions:
- The OTMA offers an easy and comprehensive method for immune status assessment.
- The assay is adaptable, requires minimal sample, and is suitable for translational research.
- This method supports clinical trials by providing detailed immune cell counts and activation states.
Abstract:
Recent improvements in the flow cytometry technology allow the determination of the general immune status through the development of multicolor immunofluorescence panels. The one-tube multicolor flow cytometry assay (OTMA) that is presented here identifies 20 different, clinically relevant immune cell subsets and three common activation markers. Thereby, a comprehensive immune status that covers all major immune cells is easily obtained.The assay is suitable for every common three lasers and 10 color flow cytometer and includes the application of 15 different antibodies. Furthermore, the assay requires only 100 μL of EDTA-treated whole-blood and less than 40 min for sample preparation. By being easily adaptable to individual requirements and by additionally determining absolute cell counts, the assay is well-suited for translational research in clinical trials.
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