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    1. Cell Biology
    2. Immunology and Inflammation

    Small molecule inhibition of Csk alters affinity recognition by T cells

    Boryana N Manz et al.
    The T cell response, especially to weak agonists, is enhanced by acute Csk inhibition.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    T cell receptor repertoires of mice and humans are clustered in similarity networks around conserved public CDR3 sequences

    Asaf Madi et al.
    A new perception of the organization of T-cell receptor repertoires in mice and humans, based on high-throughput sequencing and CDR3 sequence similarity, indicates hubs of cross-species public sequences forming evolutionary conserved 'foci of attention' of T cell immunity.
    1. Immunology and Inflammation

    Long-term antigen exposure irreversibly modifies metabolic requirements for T cell function

    Marie Bettonville et al.
    Long-term exposure to recipient's alloantigens promotes major metabolic defects in T cells that are independent of PD-1-mediated regulation.
    1. Cell Biology
    2. Immunology and Inflammation

    Calcium influx through CRAC channels controls actin organization and dynamics at the immune synapse

    Catherine A Hartzell et al.
    By restricting actin polymerization to the perimeter of the immune synapse and promoting depolymerization, calcium influx drives centripetal actin flow, which confines CRAC channels and the endoplasmic reticulum to the synapse center.
    1. Immunology and Inflammation

    Mycolic acid-specific T cells protect against Mycobacterium tuberculosis infection in a humanized transgenic mouse model

    Jie Zhao et al.
    A humanized transgenic mouse model reveals that CD1b-restricted, mycolic acid-specific T cells play a protective role during Mycobacterium tuberculosis infection.
    1. Biochemistry and Chemical Biology
    2. Immunology and Inflammation

    Rasgrp1 mutation increases naïve T-cell CD44 expression and drives mTOR-dependent accumulation of Helios+ T cells and autoantibodies

    Stephen R Daley et al.
    A single point mutation in a Ras activator leads to aberrant constitutive mTOR signaling in peripheral T cells that consequently accumulate as abnormal T helper cells and stimulate the production of autoantibodies by B cells.
    1. Immunology and Inflammation

    Antigen receptor control of methionine metabolism in T cells

    Linda V Sinclair et al.
    Antigen receptor control of methionine transport is critical to co-ordinate protein synthesis and the production of methyl donors for nucleotide and protein methylations which are required for T cell differentiation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A Histidine pH sensor regulates activation of the Ras-specific guanine nucleotide exchange factor RasGRP1

    Yvonne Vercoulen et al.
    The Ras activator RasGRP1 that impacts Ras signals in immune cells, leukemias, and colorectal cancer, switches to an active conformation aided by a pH-sensitive histidine residue in a central location of the RasGRP1 molecule.
    1. Cell Biology
    2. Immunology and Inflammation

    Fibroblastic reticular cell-derived lysophosphatidic acid regulates confined intranodal T-cell motility

    Akira Takeda et al.
    A lipid mediator lysophosphatidic acid (LPA) derived from fibroblastic reticular cells regulates T-cell movement through the densely packed reticular network in lymph nodes in a manner dependent on the LPA receptor LPA2-ROCK-myosin II.
    1. Immunology and Inflammation

    The HIV-1 envelope protein gp120 is captured and displayed for B cell recognition by SIGN-R1+ lymph node macrophages

    Chung Park et al.
    Lymph node gp120 specific B cells extract locally injected HIV-1 gp120 from SIGN-R1 positive macrophages that line the subcapsular sinus overlying the lymph node interfollicular channels.