T Cell Receptor Transduction
T Cell Receptor Transduction - Related Videos
10:14
Retroviral Transduction of T-cell Receptors in Mouse T-cells
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Cited by 21 •
2010
We present a protocol to produce antigen-specific mouse T-cells using retroviral...
09:08
Retroviral Transduction of Bone Marrow Progenitor Cells to Generate T-cell Receptor Retrogenic Mice
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Cited by 11 •
2016
We present a rapid and flexible protocol for a single T cell receptor (TCR) retroviral-based in vivo expression system. Retroviral vectors are used to transduce bone marrow progenitor cells to study T cell development and function of a single TCR in vivo as an alternative to TCR transgenic mice.
08:48
Generating De Novo Antigen-specific Human T Cell Receptors by Retroviral Transduction of Centric Hemichain
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Cited by 3 •
2016
Herein we describe a novel method to generate antigen-specific T cell receptors (TCRs) by pairing the TCRα or TCRβ of an existing TCR, possessing the antigen-specificity of interest, with complementary hemichain of the peripheral T cell receptor repertoire. The de novo generated TCRs retain antigen-specificity with varying affinity.
14:03
Transduction of Human Cells with Polymer-complexed Ecotropic Lentivirus for Enhanced Biosafety
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Cited by 8 •
2011
Lentiviruses are a valuable research tool for exploring gene function; however, researchers may wish to avoid production of pantropic lentivirus encoding known or suspected oncogenes. As an alternative, we present a safer protocol for use of ecotropic lentivirus on human cells modified to express the ecotropic receptor mSlc7a1.
08:49
Transduction and Expansion of Primary T Cells in Nine Days with Maintenance of Central Memory Phenotype
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Cited by 5 •
2020
We outline a 9-day protocol for the transduction and expansion of rhesus macaque peripheral blood mononuclear cells which yields cells with excellent co-expression of the genes of interest in sufficient number for infusion studies of cell efficacy.
FAQs
The signaling sequence begins when a TCR binds peptide presented by major histocompatibility complex molecules. Lck then phosphorylates immunoreceptor tyrosine-based activation motifs within CD3 chains, allowing ZAP-70 to associate with the receptor complex. Subsequent signaling assemblies involving LAT and SLP-76 connect this early phosphorylation stage to activation of transcription factors that alter T cell behavior.
Lck initiates signaling by phosphorylating immunoreceptor tyrosine-based activation motifs in CD3 chains after antigen recognition. These phosphorylated motifs provide sites for ZAP-70 recruitment, placing that kinase within the receptor-associated signaling machinery. The sequence is important because it converts recognition at the cell surface into an intracellular pathway capable of coordinating later T cell activation responses.
LAT and SLP-76 help organize signaling complexes downstream of ZAP-70. Their involvement links the initial receptor-associated phosphorylation events with pathways that activate NFAT, NF-κB, and AP-1. This organization allows information from antigen recognition to be integrated before transcriptional responses occur, supporting coordinated changes in proliferation, differentiation, and cytokine production rather than an isolated molecular event.
NFAT, NF-κB, and AP-1 are transcription factors activated downstream of the receptor-associated signaling complexes. Their activation provides the link between intracellular signal processing and changes in gene regulation. Because these factors are associated with T cell activation, proliferation, differentiation, and cytokine production, their engagement helps determine the broader functional response that follows antigen recognition.
A useful workflow follows the pathway in sequence: examine peptide presentation and TCR engagement, trace Lck-dependent phosphorylation of CD3 motifs, assess ZAP-70 recruitment, and then consider LAT and SLP-76 signaling complexes. The analysis can conclude by evaluating transcription-factor activation and the resulting cellular outcomes, including activation, proliferation, differentiation, or cytokine production.
During infection, T cells must connect antigen recognition with an appropriate immune response. TCR transduction provides that connection by converting recognition of peptide presented by major histocompatibility complex molecules into intracellular signals. The resulting activation can promote T cell proliferation, differentiation, and cytokine production, processes that help explain how T cells detect and respond to infectious threats.
Vaccine research benefits from understanding how antigen recognition produces T cell activation and downstream functional responses. TCR transduction identifies the signaling sequence connecting presented peptide to transcriptional regulation, proliferation, differentiation, and cytokine production. This framework helps researchers interpret how immune responses are initiated and provides scientific context for studying vaccine-induced T cell activity.
The pathway is relevant to research on immune deficiencies, autoimmune disease, and T cell-based therapies. Examining the steps from Lck and CD3 phosphorylation through ZAP-70, LAT, SLP-76, and transcription-factor activation can clarify how T cell responses are regulated. That information supports investigation of abnormal immunity and the development or study of therapeutic approaches involving T cells.