alexa Secondary T cell-T cell synaptic interactions drive the differentiation of protective CD8+ T cells.


Journal of Microbial & Biochemical Technology

Author(s): Grard A, Khan O, Beemiller P, Oswald E, Hu J,

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Abstract Immunization results in the differentiation of CD8+ T cells, such that they acquire effector abilities and convert into a memory pool. Priming of T cells takes place via an immunological synapse formed with an antigen-presenting cell (APC). By disrupting synaptic stability at different times, we found that the differentiation of CD8+ T cells required cell interactions beyond those made with APCs. We identified a critical differentiation period that required interactions between primed T cells. We found that T cell-T cell synapses had a major role in the generation of protective CD8+ T cell memory. T cell-T cell synapses allowed T cells to polarize critical secretion of interferon-γ (IFN-γ) toward each other. Collective activation and homotypic clustering drove cytokine sharing and acted as regulatory stimuli for T cell differentiation.
This article was published in Nat Immunol and referenced in Journal of Microbial & Biochemical Technology

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