Treg Function Measurement
Treg Function Measurement - 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.
10:40
Measuring Neuromuscular Junction Functionality
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Cited by 7 •
2017
A functional assessment of the neuromuscular junction (NMJ) can provide essential information on the communication between muscle and nerve. Here we describe a protocol to comprehensively evaluate both the NMJ and muscle functionality using two different muscle-nerve preparations, i.e. soleus-sciatic and diaphragm-phrenic.
09:59
Functional Reconstitution and Channel Activity Measurements of Purified Wildtype and Mutant CFTR Protein
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Cited by 7 •
2015
Described here is a rapid and effective procedure for functional reconstitution of purified wild-type and mutant CFTR protein that preserves activity for this chloride channel, which is defective in Cystic Fibrosis. Iodide efflux from reconstituted proteoliposomes mediated by CFTR allows studies of channel activity and the effects of small molecules.
08:51
Measuring Respiratory Function in Mice Using Unrestrained Whole-body Plethysmography
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Cited by 70 •
2014
The assessment of respiratory physiology has traditionally relied upon techniques, which require restraint or sedation of the animal. Unrestrained whole-body plethysmography, however, provides precise, non-invasive, quantitative analysis of respiratory physiology in animal models. In addition, the technique allows repeated respiratory assessment of mice allowing for longitudinal studies.
08:25
Force Measurement During Contraction to Assess Muscle Function in Zebrafish Larvae
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Cited by 15 •
2013
Force measurements can be used to demonstrate changes in muscle function due to development, injury, disease, treatment or chemical toxicity. In this video, we demonstrate a method to measure force during a maximal contraction of zebrafish larval trunk muscle.
FAQs
A sample can contain many regulatory T cells without those cells suppressing immune responses effectively. Functional testing therefore examines how responder T cells behave when co-cultured with purified Tregs, while phenotypic markers such as FOXP3 and CD25 provide information about the Treg population itself. Comparing these measurements separates numerical differences from changes in regulatory performance.
The assay compares activated responder T cells cultured with purified Tregs against their response under the relevant comparison condition. If Tregs are suppressive, responder-cell activity is reduced, which can be detected through lower proliferation, altered cytokine production, or changes in activation markers. This design links the observed readout specifically to regulation of responder-cell activation.
These readouts capture different aspects of responder-cell behavior. Proliferation reflects whether activated cells continue expanding, cytokine production indicates changes in their immune signaling, and activation markers show changes in activation status. Using one or more of these measures can provide a broader assessment of suppression than relying on a single outcome alone.
FOXP3 and CD25 help characterize the cells being evaluated as regulatory T cells, adding phenotypic context to the experiment. Their presence does not replace a functional readout, because the central question is whether responder-cell proliferation, cytokine production, or activation changes during co-culture. Measuring phenotype alongside suppression helps interpret functional differences more carefully.
A basic workflow includes obtaining purified Tregs, preparing activated responder T cells, and establishing their co-culture. The experiment then measures responder-cell proliferation, cytokine production, or activation markers, often alongside FOXP3 and CD25 assessment. Comparing these results allows investigators to evaluate suppressive activity together with the phenotype of the regulatory population.
Researchers can apply this approach when examining immune tolerance, inflammation, or host defense, including studies of infection, autoimmunity, transplantation, and immunotherapy. In infection research, the assay can help determine whether a pathogen alters immune regulation. In treatment studies, it can reveal whether an intervention changes regulatory activity rather than simply changing Treg abundance.
Standardized functional readouts can show whether a treatment or other experimental condition changes the ability of Tregs to regulate responder-cell activity. This information supports interpretation of immune modulation in transplantation, autoimmunity, infection, and immunotherapy research. It can also contribute to therapeutic development by distinguishing altered suppressive capacity from changes in the number or phenotype of Tregs.