920 results found
    1. Cell Biology
    2. Immunology and Inflammation

    Transient protein accumulation at the center of the T cell antigen-presenting cell interface drives efficient IL-2 secretion

    Danielle J Clark et al.
    A membrane-associated, supramolecular protein complex with dynamically changing components, the central supramolecular activation cluster, regulates the generation of the T cell effector cytokine IL-2 depending on its composition.
    1. Immunology and Inflammation

    Cytomegalovirus restricts ICOSL expression on antigen-presenting cells disabling T cell co-stimulation and contributing to immune evasion

    Guillem Angulo et al.
    ICOSL-dependent T-cell co-stimulation contributes to the host defense against herpesvirus infections, and accordingly, these pathogens have developed immune evasion mechanisms to interrupt the ICOSL:ICOS signaling pathway.
    1. Cell Biology
    2. Immunology and Inflammation

    Arp2/3 complex-driven spatial patterning of the BCR enhances immune synapse formation, BCR signaling and B cell activation

    Madison Bolger-Munro et al.
    Arp2/3 complex-mediated actin polymerization shapes how B lymphocytes probe the surface of antigen-presenting cells, promotes coalescence of B cell receptor (BCR) microclusters, amplifies BCR signaling, and enhances B cell activation.
    1. Cell Biology
    2. Immunology and Inflammation

    B cells extract antigens at Arp2/3-generated actin foci interspersed with linear filaments

    Sophie I Roper et al.
    Two modes of actin polymerization, branched and linear, cooperate in B cells to extract antigens from surfaces of presenting cells.
    1. Immunology and Inflammation

    Landscape mapping of shared antigenic epitopes and their cognate TCRs of tumor-infiltrating T lymphocytes in melanoma

    Kenji Murata et al.
    A library of the paired peptide/HLA multimers and artificial APCs allows for construction of a large database of class I-restricted peptides and cognate tumor-reactive TCR genes at an unprecedented scale.
    1. Immunology and Inflammation

    Variations in HLA-B cell surface expression, half-life and extracellular antigen receptivity

    Brogan Yarzabek et al.
    Lymphocytes and monocytes maintain their cell surface HLA-B via different mechanisms, which in turn differently influence cell-surface expression, half-life and peptide receptivity of HLA-B allotypes.
    1. Immunology and Inflammation

    Lymph node stromal cells constrain immunity via MHC class II self-antigen presentation

    Antonio P Baptista et al.
    MHC class II-mediated self-antigen presentation by lymph node stromal cells controls regulatory T cell homeostasis, thus safeguarding immune tolerance.
    1. Cancer Biology

    Rejection of immunogenic tumor clones is limited by clonal fraction

    Ron S Gejman et al.
    A new, high-throughput in vivo MHC-I peptide minigene library platform shows that the naive immune system cannot eliminate cells presenting immunogenic antigens found at low frequencies within a growing tumor.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Asynchrony between virus diversity and antibody selection limits influenza virus evolution

    Dylan H Morris et al.
    Despite the virus' error prone polymerase, influenza virus antigenic evolution is rare, even in previously immune hosts, virus replication occurs before producing new antibodies.
    1. Immunology and Inflammation

    A tissue-like platform for studying engineered quiescent human T-cells’ interactions with dendritic cells

    Enas Abu-Shah et al.
    The use of advanced 3D culture systems with engineered quiescent human T-cells, mimicking in vivo cellular dynamics, paves the way to a new era of much needed pre-clinical research tools.

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