Tcr Stimulation
Tcr Stimulation - Related Videos
19:05
Measuring TCR-pMHC Binding In Situ using a FRET-based Microscopy Assay
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Cited by 9 •
2015
This manuscript describes how to conduct (single molecule) Förster Resonance Energy Transfer (FRET)- based assays to measure the binding dynamics between T-cell antigen receptor (TCR) and antigenic peptide-loaded MHC molecules as they occur within the immunological synapse of a T-cell in contact with a functionalized planar supported lipid bilayer.
16:10
A TIRF Microscopy Technique for Real-time, Simultaneous Imaging of the TCR and its Associated Signaling Proteins
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Cited by 13 •
2012
The compartmentalization of proteins either within the plasma membrane or into intracellular locations is one regulatory mechanism that can greatly influence signaling outcomes; hence, to understand signaling it is important to study the spatial and temporal behavior of the proteins involved. We describe here a TIRF microscopy based system to study signal transduction in T cells, but is broadly applicable.
06:42
Identifying Kinase Inhibitors that Modulate the Thymocyte Response to Strong TCR Signals
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2025
In this video, we describe a method to identify the small-molecule kinase inhibitors that modulate the apoptosis of self-reactive CD4+CD8+ double-positive immature thymocytes. Apoptosis is induced in the double-positive thymocytes by activating them with anti-CD3- and anti-CD28-coated magnetic beads; this is followed by a small-molecule inhibitor treatment and flow cytometry analysis to detect if the inhibitors modulate the apoptotic marker expression.
11:21
Streamlined Single Cell TCR Isolation and Generation of Retroviral Vectors for In Vitro and In Vivo Expression of Human TCRs
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Cited by 3 •
2017
The current protocol combines single cell paired human TCR alpha and beta chain sequencing with streamlined generation of retroviral vectors compatible with in vitro and in vivo TCR expression.
11:02
Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network
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Cited by 17 •
2010
In this article, we examine the methodology and considerations relevant to the combination of TMS and fMRI to examine the effects of brain stimulation on the default network.
FAQs
Co-stimulatory signals help determine whether TCR engagement produces an effective T-cell response and what form that response takes. They act alongside peptide-MHC recognition rather than replacing it, influencing downstream outcomes such as proliferation and cytokine production. Including or controlling these signals is therefore important when interpreting stimulation experiments or comparing functional responses between T-cell populations.
Phosphorylation of immunoreceptor tyrosine-based activation motifs in the CD3 complex converts receptor engagement into intracellular signaling. This event connects recognition at the cell surface with calcium flux and transcriptional changes, which can then support proliferation and cytokine production. Assessing these outputs helps distinguish receptor-proximal signaling from later functional consequences of TCR stimulation.
Peptide identity and its presentation by a major histocompatibility complex molecule are central variables because they determine what the T-cell receptor can recognize. The associated CD3 signaling machinery and the presence of co-stimulation also shape the response. Keeping these recognition and signaling conditions clear helps investigators attribute differences to T-cell function rather than to inconsistent stimulation.
A controlled experiment can establish an antigen-recognition condition and then examine signaling and functional readouts. Relevant outcomes include CD3-associated phosphorylation, calcium flux, transcriptional changes, proliferation, and cytokine production. Comparing these measurements across T-cell populations or stimulation conditions can reveal whether a difference appears in receptor-associated signaling, downstream activation, or broader cellular function.
Controlled engagement allows investigators to examine how T cells respond to a defined peptide-MHC signal. The resulting measurements can support comparisons of T-cell function, including differences in signaling, proliferation, and cytokine production. This application is useful for characterizing adaptive immune responses across experimental groups and for determining how distinct T-cell populations respond to the same recognition event.
In infection research, controlled TCR stimulation provides a framework for examining adaptive immune responses and immune dysfunction. It also supports evaluation of vaccines and immunotherapies by testing T-cell signaling and functional outputs under defined stimulation conditions. Readouts such as cytokine production and proliferation help connect receptor-triggered signaling with broader immune performance in these research settings.