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Updated: Jul 15, 2026
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In vivo Clonal Tracking of Hematopoietic Stem and Progenitor Cells Marked by Five Fluorescent Proteins using Confocal and Multiphoton Microscopy
Published on: August 6, 2014
Human mesenchymal stem cells at the single-cell level: simultaneous seven-colour immunofluorescence
Matthias Schieker1, Christoph Pautke, Florian Haasters
1Experimental Surgery and Regenerative Medicine, Department of Surgery, Ludwig-Maximilians-University (LMU) Munich, Germany. Matthias.Schieker@med.uni-muenchen.de
Journal of Anatomy
|April 25, 2007
Summary
This study distinguishes human mesenchymal stem cells (hMSC) from osteoblasts using multi-colour fluorescence. Simultaneous detection of multiple cell markers on single cells provides a precise identification method.
Area of Science:
- Cell Biology
- Biotechnology
- Immunophenotyping
Background:
- Characterizing human mesenchymal stem cells (hMSC) relies on protein markers, but these are often shared with other cell types.
- Heterogeneity in primary cell populations complicates accurate hMSC identification.
- Simultaneous detection of multiple markers on single cells offers a promising strategy for precise hMSC characterization.
Purpose of the Study:
- To develop a method for specific distinction between human mesenchymal stem cells (hMSC) and human osteoblasts.
- To enable simultaneous detection of multiple cell surface, intracellular, and nuclear markers on a single-cell level.
Main Methods:
- Utilized seven-colour fluorescence for simultaneous marker detection on single cells.
- Employed spectral image acquisition with a Sagnac-type interferometer.
- Applied linear unmixing for spectral component decomposition of each pixel.
Main Results:
- Successfully distinguished hMSC from osteoblasts at the single-cell level.
- Identified a distinct expression profile for adherent singular cells.
- Demonstrated simultaneous detection of CD44, CD105/endoglin, CD106/VCAM-1, collagen-IV, fibronectin, actin, and DAPI.
Conclusions:
- Simultaneous multi-marker detection provides a robust method for differentiating hMSC from osteoblasts.
- This single-cell analysis approach overcomes limitations of traditional marker-based characterization.
- The developed technique enhances the specificity and accuracy of hMSC identification.
