Human Tcr Expression
Human Tcr Expression - Related Videos
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.
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.
09:09
Gene Expression Analyses in Human Follicles
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2023
Here, we describe a protocol outlining how to isolate human ovarian follicles from frozen-thawed cortical tissue to perform gene expression analyses.
FAQs
V(D)J recombination rearranges TCR gene segments before mature receptors appear on the cell surface. This process generates diverse receptor sequences and supports the formation of either αβ or γδ TCRs. The resulting diversity allows different T-cell populations to recognize distinct peptide antigens presented by major histocompatibility complex molecules during adaptive immune responses.
The TCR chains do not function independently at the cell surface. They assemble with the CD3 signaling complex, which is required for the receptor system to operate as part of a T lymphocyte. Studying this assembled receptor provides information about whether TCR expression represents a functional surface immune-recognition system rather than isolated receptor-chain production.
TCR diversity broadens the range of antigen-specific responses available within a T-cell population. In infection research, this diversity helps explain how lymphocytes recognize peptide antigens and contribute to adaptive immunity. Regulated receptor expression also influences immune tolerance, reducing inappropriate responses while supporting the development of immunological memory.
Regulation keeps receptor diversity and antigen recognition compatible with immune tolerance and effective defense. Appropriate expression supports T-cell populations that can respond to infection-associated antigens without losing the controls needed to limit harmful recognition. These features also affect whether antigen-specific responses can persist as immunological memory.
Expression studies can help characterize T-cell populations according to their receptor configurations and antigen-recognition potential. Examining αβ and γδ receptor expression, together with the associated CD3 complex, provides a framework for describing cellular subsets. This information supports analysis of immune composition and the organization of antigen-specific responses.
TCR expression connects T-cell populations with the antigen-recognition side of host defense. By examining receptor diversity and antigen-specific responses, researchers can investigate how lymphocytes respond to infection-related peptide antigens presented by major histocompatibility complex molecules. The approach helps relate changes in adaptive immunity to interactions between hosts and infectious agents.
Knowledge of human TCR expression provides a foundation for approaches that place antigen-recognition receptors on T lymphocytes. Engineered receptor systems can then be studied in relation to receptor-chain assembly, CD3 association, and antigen specificity. This application uses the principles of functional surface expression to develop targeted immune-cell strategies.
Monitoring TCR expression can help identify and characterize T-cell populations associated with particular antigen-specific responses. Receptor diversity, chain configuration, and surface association with CD3 offer relevant biological information for interpreting immune responses. In infection and immunology studies, these measurements can support evaluation of adaptive immunity and memory-related responses.