Treg Cell Function
Treg Cell Function - Related Videos
15:33
Adenoviral Transduction of Naive CD4 T Cells to Study Treg Differentiation
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Cited by 7 •
2013
Adenoviral gene transfer into naive CD4 T cells with transgenic expression of the Coxsackie adenovirus receptor enables the molecular analysis of regulatory T cell differentiation in vitro.
07:26
Isolation of Functional Cardiac Immune Cells
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Cited by 9 •
2011
This method for isolating functional immune cells from the heart provides an alternative to the conventional methods of collagenase digestion, which causes unwanted immune cell activation, resulting in a decreased responsiveness of these cells. Our method of isolation yields functional cardiac immune cells by avoiding problems associated with enzymatic digestion.
22:49
Optimized Staining and Proliferation Modeling Methods for Cell Division Monitoring using Cell Tracking Dyes
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Cited by 45 •
2012
Successful use of cell tracking dyes to monitor immune cell function and proliferation involves several critical steps. We describe methods for: 1) obtaining bright, uniform, reproducible label-ing with membrane dyes; 2) selecting fluorochromes and data acquisition conditions; and 3) choosing a model to quantify cell proliferation based on dye dilution.
08:17
Flow Cytometry-based Assay for the Monitoring of NK Cell Functions
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Cited by 12 •
2016
A simple and reliable method is described here to analyze a set of NK cell functions such as degranulation, cytokine and chemokine production within different NK cell subsets.
14:23
Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells
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Cited by 29 •
2012
We describe a method for generating regulatory, memory and naïve T cells from a single human blood donor. Polarized Tregs can be then compared to other subsets in a variety of genetic and functional applications with genetic homogeneity, including a suppression assay also detailed here.
FAQs
FOXP3 and high CD25 expression serve as characteristic markers for identifying regulatory T cells in immunology studies. Their presence helps distinguish this CD4+ T-cell population when researchers examine immune regulation, infection responses, or tolerance. These markers are interpreted alongside functional signals, including CTLA-4 activity and cytokine release, rather than treated as a complete measure of suppression by themselves.
CTLA-4 signaling represents an inhibitory interaction involving regulatory T cells and other immune cells, whereas IL-10 and TGF-β provide cytokine-mediated suppression. Considering both mechanisms gives a broader view of how immune activation may be restrained. This distinction is useful when studies ask whether regulation depends mainly on cell interactions, soluble signals, or both.
Regulatory activity can protect infected tissues from excessive immune-mediated damage, which is important when inflammation threatens normal tissue. However, excessive suppression may weaken the immune response needed for microbial clearance. Infection studies therefore examine this balance rather than treating stronger regulation as universally beneficial, since the outcome depends on whether limiting inflammation or sustaining pathogen control is the central concern.
A study can examine the presence of CD4+ cells marked by FOXP3 and high CD25, together with inhibitory CTLA-4 signaling and production of IL-10 or TGF-β. Researchers can then relate these features to immune activation, tissue inflammation, or microbial clearance. This combined approach connects cellular identity with functional consequences instead of relying on a single marker.
The topic is particularly relevant when researchers study autoimmunity, chronic infection, vaccine responses, or immunotherapies. In each setting, regulatory activity can shape how strongly the immune system responds and how much tissue damage results. Infection-focused work also considers whether suppression helps preserve host tissues or instead permits microbes to persist by limiting effective clearance.
An increase in regulatory activity may indicate stronger control of immune activation and reduced risk of tissue-damaging inflammation, but it may also correspond to weaker microbial clearance. Conversely, less regulation could permit a stronger response while increasing inflammatory injury. Interpreting these changes requires examining both immune control and the relevant outcome, such as persistence, damage, or vaccine response.