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Anti-Peptide FLA T cell receptor (506beta), pCDTCR1 (TCR-YC0909)

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All products and services are For Research Use Only and CANNOT be used in the treatment or diagnosis of disease.

The 506β mice infected with Vac:IAb–3K expanded a large population of IFNγ-producing CD4 T cells that recognized the 3K variant ligands, P-1L and P-1K. In contrast, Vac:3K–GFP expanded CD4 T cells with these cross-reactivities very poorly. An increased precursor frequency of CD4 T cells in 506β mice for 3K and the 3K APLs may allow these lower potency, P-1L and P-1K cross-reactive CD4 T cells to be expanded following Vac:IAb–3K infections, whereas in a completely polyclonal population these cells would fail to be activated because of some aspect of T-cell competition.

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Details

  • Target
  • Peptide FLA
  • Epitope
  • FLAQKAKANKAVD
  • Format
  • Non-Modified TCR
  • Allele
  • H2-IAb
  • Targeting Diseases
  • Vaccinia virus infection
  • Vector Name
  • pCDTCR1
  • Vector Length
  • ~ 8 kb
  • Vector Type
  • Lentiviral vector
  • TCR Clone
  • 506beta
  • Host Species
  • Mouse

Target

  • Introduction
  • Upon infection, CD4 T cells scan antigen-presenting cells (APCs) for pathogen-derived peptides displayed on host MHC class II proteins (pMHCII). If a T-cell–APC encounter results in intracellular signals that exceed a threshold, naïve CD4 T cells are triggered to undergo clonal expansion and acquire effector cell functions that help eliminate pathogens. Thymic selection equips mature CD4 T cells with T-cell receptors (TCRs) that preferentially react with specific foreign antigens bound to MHCII molecules. Despite the focusing of CD4 T-cell reactivity toward unique ligands, mature CD4 T cells are polyspecific, capable of being activated by multiple, distinct pMHCII ligands. T-cell polyreactivity can have both beneficial and detrimental effects during antiviral responses and may allow pathogen-derived peptides to activate autoimmune disease-inducing T cells. Thus, understanding how T-cell reactivity patterns develop has clear implications for vaccine strategies, as well as for understanding the origins of some immune and autoimmune-mediated diseases.

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For research use only. Not intended for any clinical use. No products from Creative Biolabs may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative Biolabs.

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