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Pastore, Gabiria; Carraro, Monica; Pettini, Elena; Nolfi, Emanuele; Medaglini, Donata; Ciabattini, Annalisa
Frontiers in immunology, 10/2019, Letnik: 10Journal Article
Analysis of multifunctional CD4 T cells is fundamental for characterizing the immune responses to vaccination or infection. Major histocompatibility complex (MHC)/peptide tetramers represent a powerful technology for the detection of antigen-specific T cells by specific binding to their T-cell receptor, and their combination with functional assays is fundamental for characterizing the antigen-specific immune response. Here we optimized a protocol for the detection of multiple intracellular cytokines within epitope-specific CD4 T cells identified by the MHC class II tetramer technology. The optimal procedure for assessing the functional activity of tetramer-binding CD4 T cells was based on the simultaneous intracellular staining with both MHC tetramers and cytokine-specific antibodies upon restimulation of cells with the vaccine antigen. The protocol was selected among procedures that differently combine the steps of cellular restimulation and tetramer staining with intracellular cytokine labeling. This method can be applied to better understand the complex functional profile of CD4 T-cell responses upon vaccination or infection.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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