An improved method for discrimination of cell populations in tissue sections using microscopy-based multicolor tissue cytometry

Background: In tissue context, researchers and pathologists lack a generally applicable standard for quantitative determination of cytological parameters. Increasing knowledge of disease-specific markers calls for an appropriate in situ tissue cytometry. Methods: Microscopy-based multicolor tissue cytometry (MMTC) permits multicolor analysis of single cells within tissue context. Results: Tissue specimens stained for CD45/CD3/CD4/CD8 were analyzed. Specificity,is well,is reproducibility of MMTC is demonstrated and a novel MMTC-based function to improve Visual discrimination of subpopulations is introduced. Conclusions: Our data demonstrate that MMTC constitutes an important step toward automated and quantitative fluorometry of solid tissues and cell monolayers. (c) 2006 International Society for Analytical Cytology.