Results 101 to 110 of about 226,715 (279)

Human T-cell receptor triggering requires inactivation of Lim kinase-1 by Slingshot-1 phosphatase

open access: yesCommunications Biology
Actin dynamics control early T-cell receptor (TCR) signalling during T-cell activation. However, the precise regulation of initial actin rearrangements is not completely understood.
Álvaro Gómez-Morón   +13 more
doaj   +1 more source

Flotillins are involved in the polarization of primitive and mature hematopoietic cells.

open access: yesPLoS ONE, 2009
BackgroundMigration of mature and immature leukocytes in response to chemokines is not only essential during inflammation and host defense, but also during development of the hematopoietic system.
Lawrence Rajendran   +7 more
doaj   +1 more source

Microtubule dynamics and signal transduction at the immunological synapse: new partners and new connections.

open access: yes, 2012
International audienceAntigen recognition induces T cells to polarize towards antigen presenting cells (APC) generating an organized cell interface named the immunological synapse. T-cell microtubules (MTs) reorient the MT-organizing centre (MTOC) to the
Lasserre, Rémi, Alcover, Andrès
core   +1 more source

RNA Promotes Synapsin Condensates That Organize Synaptic Vesicles in Live Neurons and Enable Localized Translation in Reconstituted System

open access: yesAdvanced Science, EarlyView.
Condensates at synapses organize synaptic vesicles (SVs) and are crucial for efficient neurotransmitter release, yet how RNA contributes to this mesoscale architecture remains poorly understood. Here we uncover that RNA modulates synapsin–driven condensates.
Branislava Rankovic   +21 more
wiley   +1 more source

Costimulation: Building an Immunological Synapse

open access: yesScience, 1999
Immune responses are triggered by activation of the T cell receptor with foreign antigen. Dustin summarizes in his Perspective new evidence that this triggering event is actually the formation of an "immunological synapse," an area of close contact between cells. Recent results ( Viola et al.
Dustin, M, Shaw, A
openaire   +2 more sources

Casein kinase 2 controls synapse organization and stability [PDF]

open access: yes, 2013
Synapse remodeling is a local and dynamic process, requiring constant modifications of the neuronal network. Post-translational modifications, such as reversible phosphorylation by kinases and phosphatases, play a crucial role in synapse development and ...
Bulat, Victoria
core   +1 more source

A Drug‐Gated, Modular STAb‐T Immunotherapy With External Control

open access: yesAdvanced Science, EarlyView.
Engineered STAb‐TON cells act as programmable living factories that continuously secrete inactive antibody modules, which assemble extracellularly into a functional T cell engager only upon small‐molecule administration. This externally controlled platform enables reversible, on‐demand regulation of antitumor immunity, establishing a new paradigm for ...
Susana Luengo‐Arias   +23 more
wiley   +1 more source

Imaging Membrane Curvature inside a FcεRI-Centric Synapse in RBL-2H3 Cells Using TIRF Microscopy with Polarized Excitation

open access: yesJournal of Imaging, 2019
Total internal reflection fluorescence microscopy with polarized excitation (P-TIRF) can be used to image nanoscale curvature phenomena in live cells. We used P-TIRF to visualize rat basophilic leukemia cells (RBL-2H3 cells) primed with fluorescent anti ...
Rosa Machado   +4 more
doaj   +1 more source

SynNotch Receptors for Visualizing Immunoreceptor Force Transmission and Downstream Signaling In Vivo

open access: yesAdvanced Science, EarlyView.
A mechanically activated SynNotch reporter platform enables detection of force transmission through receptors as they mediate immune cell interactions. Targeting CD40 on B cells and TCR on T cells records force‐induced reporter activation across 2D coculture, 3D organoid, and implanted in mice, which also reveal force‐amplification of immune receptor ...
Menglan Li   +9 more
wiley   +1 more source

A dynamic view of the immunological synapse

open access: yesSeminars in Immunology, 2005
T cell activation requires interactions of T cell antigen receptors (TCR) and peptides presented by major histocompatibility complex molecules (MHCp) in an adhesive junction between the T cell and antigen-presenting cell. Stable junctions with bull's eye supramolecular activation clusters (SMACs) have been defined as immunological synapses (IS).
openaire   +2 more sources

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