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Updated: Mar 30, 2026
Flow Cytometric Characterization of Murine B Cell Development
Published on: January 22, 2021
Immune Cell Phenotyping Using Flow Cytometry
A Graham Pockley1,2, Gemma A Foulds1, Julie A Oughton3
1John van Geest Cancer Research Center, Nottingham Trent University, Nottingham, United Kingdom.
Insights
Fluorescent immunophenotyping, including flow cytometry, identifies cell types and changes using fluorescent antibodies. This method rapidly analyzes millions of cells, offering detailed insights into cell populations and phenotypes.
Area of Science:
- Cell Biology
- Immunology
- Biotechnology
Background:
- Fluorescent immunophenotyping identifies distinct cell subpopulations in heterogeneous samples.
- Flow cytometry offers rapid, objective analysis of millions of cells, characterizing physical and fluorescent properties.
- This technique is crucial for understanding cell populations in tissues and single-cell suspensions.
Purpose of the Study:
- To describe basic procedures for direct and indirect immunofluorescent staining of lymphoid cells.
- To provide essential information on antibody selection, fluorochrome choice, and data analysis standardization.
- To highlight new technologies for in-depth cell subpopulation and phenotype interrogation.
Main Methods:
- Direct and indirect immunofluorescent staining of surface and intracellular proteins.
- Protocols for dead cell resolution and cell fixation.
- Guidance on antibody titration, fluorochrome selection, spectral compensation, and controls.
Main Results:
- Standardized protocols enable accurate identification and quantification of cell subpopulations.
- Detailed information on optimizing antibody-fluorochrome combinations and data acquisition.
- New technologies offer enhanced depth in analyzing cell phenotypes.
Conclusions:
- Fluorescent immunophenotyping, particularly flow cytometry, is a powerful tool for cell analysis.
- Standardized methods and careful optimization are key to reliable results.
- Emerging technologies promise even greater resolution in cellular analysis.
Abstract:
Fluorescent immunophenotyping uses fluorescently-conjugated antibodies to identify, characterize and quantify distinct subpopulations of cells within heterogeneous single-cell populations, either in the context of tissue (using fluorescence and imaging microscopy) or in a single-cell suspension (using multiparameter imaging microscopy, imaging cytometry, and/or flow cytometry). Flow cytometry is an optical, laser-based technology which analyzes the physical and fluorescent properties of cells in suspension in real-time as they flow through the instrument. This approach has a number of advantages over other techniques that can be used for characterizing cell populations in single-cell suspensions, in that it can nonsubjectively interrogate up to millions of cells and acquire data on the presence of different cell subpopulations and phenotypical changes within these populations in seconds. This unit describes basic procedures for the direct and indirect immunofluorescent staining of surface and intracellular proteins that are expressed by lymphoid cells which have been isolated from tissues or blood. Protocols for the resolution of dead cells and for the fixation of cells are also included. This unit also provides essential information relating to the selection and titration of antibodies, fluorochrome choice, spectral overlap and compensation, the use of controls, and the standardization of data acquisition and analysis. It also highlights new technologies and platforms that can be used to interrogate the presence of cell subpopulations and their phenotype to an even greater depth.
