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Discrimination of Seven Immune Cell Subsets by Two-fluorochrome Flow Cytometry
Published on: March 5, 2019
CyTOF supports efficient detection of immune cell subsets from small samples
Yi Yao1, Rebecca Liu2, Min Sun Shin1
1Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, United States.
Insights
Mass cytometry (CyTOF) enables detailed immune cell analysis with up to 40 markers, overcoming fluorescence limitations. This study presents reproducible methods for using CyTOF on small samples, crucial for clinical research.
Area of Science:
- Immunology
- Biotechnology
- Medical Diagnostics
Background:
- Immune cell state analysis is vital for understanding human disease pathogenesis.
- Fluorescence cytometry is a standard tool but limited by signal overlap, restricting marker detection.
- Mass cytometry (CyTOF) offers a solution for high-parameter single-cell analysis, detecting up to 40 markers.
Purpose of the Study:
- To present reproducible methods for immune cell subset detection using mass cytometry (CyTOF).
- To demonstrate the utility of CyTOF for analyzing small cell populations.
- To highlight the relevance of CyTOF for translational and clinical research involving limited patient samples.
Main Methods:
- Utilized mass cytometry (Cytometry by Time-Of-Flight) for multiparameter single-cell analysis.
- Developed and validated protocols for reproducible immune cell subset detection.
- Applied methods to samples as small as 10,000 cells.
Main Results:
- Achieved reproducible detection of immune cell subsets from limited cell numbers (≥10,000 cells).
- Demonstrated CyTOF's capability to overcome fluorescence limitations for high-parameter analysis.
- Established a robust method for small sample analysis using CyTOF.
Conclusions:
- Mass cytometry (CyTOF) is a powerful technique for detailed immune cell analysis, even with small sample sizes.
- The presented methods enable the application of CyTOF in translational and clinical research settings.
- CyTOF significantly enhances the ability to investigate immune cell states in limited patient biopsies.
Abstract:
Analysis of immune cell states is paramount to our understanding of the pathogenesis of a broad range of human diseases. Immunologists rely on fluorescence cytometry for cellular analysis, and while detection of 8 markers is now well established, the overlap of fluorescent signals limits efficiency. Mass cytometry or CyTOF (Cytometry by Time-Of-Flight) is a new technology for multiparameter single cell analysis that overcomes many limitations of fluorescence-based flow cytometry and can routinely detect as many as 40 markers per sample. This technology provides tremendous detail for cellular analysis of multiple cell populations simultaneously and is a powerful technique for translational investigations. Here we present reproducible detection of immune cell subsets starting with as few as 10,000 cells. Our study provides methods to employ CyTOF for small samples, which is especially relevant for investigation of limited patient biopsies in translational and clinical research.

