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Updated: Aug 12, 2026
Mouse Naïve CD4+ T Cell Isolation and In vitro Differentiation into T Cell Subsets
Published on: April 16, 2015
[Cytokine measurement at a single-cell level to analyze human Th1 and Th2 cells]
1Department of Laboratory Medicine, Kobe University, School of Medicine.
Insights
This study demonstrates a new flow cytometry method for detecting T helper 1 (Th1) and T helper 2 (Th2) cells by measuring intracellular cytokines. This technique accurately identifies Th1/Th2 cells in vitro and in human peripheral blood, aiding immunological disorder research.
Area of Science:
- Immunology
- Cell Biology
Context:
- T helper 1 (Th1) and T helper 2 (Th2) cells orchestrate cell-mediated and humoral immunity, respectively.
- These cells are crucial in immune defense and implicated in allergic and autoimmune diseases.
- Accurate detection methods for Th1 and Th2 cells are vital for understanding immune function and pathology.
Purpose:
- To introduce and validate a novel flow cytometry technique for intracellular cytokine detection.
- To demonstrate the ability to differentiate and identify human Th1 and Th2 cells using this method.
- To assess the utility of this technique for analyzing Th1/Th2 populations in vitro and in peripheral blood.
Summary:
- A new flow cytometry technique allows for single-cell level detection of intracellular cytokines IL-4 and IFN-gamma.
- Naive human CD4+ T cells were differentiated into Th1 and Th2 cells in vitro, confirming the method's accuracy.
- The technique successfully identified Th1 and Th2 cells in human peripheral blood, suggesting a predominance of Th1 cells.
Impact:
- This method provides a powerful tool for precise enumeration of Th1 and Th2 cells.
- It facilitates a deeper understanding of the pathophysiology of immunological disorders.
- The technique holds potential for applications in clinical laboratory medicine and immunological research.
Abstract:
Th1 cells, which produce IL-2 and IFN gamma, are responsible for cell-mediated immune responses, and Th2 cells, which produce IL-4 and IL-5, facilitate humoral immune responses. It has been shown that these two types of cells play critical roles in defensive immune responses and in immunopathological disorders such as allergic reactions and autoimmune diseases, and the methods of detecting Th1 and Th2 cells have become more important. A newly developed technique enables intracellular cytokines to be stained and detected on flow cytometry at a single-cell level. To show the existence of human Th1/Th2 cells, naive human CD4+ T cells were differentiated into Th cells in vitro, and Th1/Th2 cells were clearly demonstrated using intracellular IL-4 and IFN gamma staining. IL-4 promoted Th2 differentiation and IL-12 did Th1, as previously reported. Th1 and Th2 cells among human peripheral blood T cell population also can be detected by this technique using double staining for IL-4 and IFN gamma, and the predominance of Th1 cells among peripheral blood T cells were suggested. Measurement of intracellular cytokines is a useful technique, and will be used in the field of clinical laboratory medicine to further clarify the pathophysiology of immunological disorders.
