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Related Concept Videos

T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

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T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
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The Synapse02:47

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Electrical Synapses01:28

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Electrical synapses found in all nervous systems play important and unique roles. In these synapses, the presynaptic and postsynaptic membranes are very close together (3.5 nm) and are actually physically connected by channel proteins forming gap junctions.
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Neuron Structure01:30

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Neurons are the main type of cell in the nervous system that generate and transmit electrochemical signals. They primarily communicate with each other using neurotransmitters at specific junctions called synapses. Neurons come in many shapes that often relate to their function, but most share three main structures: an axon and dendrites that extend out from a cell body.
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The cadherins were one of the first cell adhesion molecules discovered; the term “cadherins”   is based on their calcium-dependent adhering properties. The first cadherins discovered on the epithelial, neuronal, and placental cells were named E-cadherin, P-cadherin, and N-cadherin, respectively. These classical cadherins share sequence and structural similarities. Other cadherins, including those involved in cell signaling, are grouped into non-classical cadherins. This...
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Related Experiment Video

Updated: Jan 5, 2026

Assessment of the Synaptic Interface of Primary Human T Cells from Peripheral Blood and Lymphoid Tissue
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Not All T Cell Synapses Are Built the Same Way.

Sudha Kumari1, Huw Colin-York2, Darrell J Irvine1

  • 1Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

Trends in Immunology
|October 25, 2019
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Summary

T cell subtypes show diverse responses despite shared activation. Differences in the immunological synapse

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Area of Science:

  • Immunology
  • Cell Biology
  • Biophysics

Background:

  • T cells exhibit diverse functions and responses, even when activated through the same T cell receptor (TCR) pathway.
  • Understanding the principles governing T cell subtype-specific activation and antigen recognition within the immunological synapse is crucial but limited.
  • Current research faces challenges due to difficulties in visualizing primary T cells at high resolution and the use of artificial cell systems that may not reflect natural T cell diversity.

Purpose of the Study:

  • To explore the architectural and dynamic diversity of the immunological synapse.
  • To discuss advanced methodologies for studying T cell activation and antigen recognition.
  • To elucidate how synaptic differences influence functional divergence among T cell subtypes.

Main Methods:

  • Review of recent findings on immunological synapse structure and dynamics.
  • Discussion of state-of-the-art visualization and analysis techniques for T cells.
  • Integration of biological and biophysical approaches to understand T cell function.

Main Results:

  • The immunological synapse exhibits significant architectural and dynamic diversity across T cell subtypes.
  • Advanced methodologies enable higher spatiotemporal resolution imaging and analysis of primary T cells.
  • Biological and biophysical variations within the synapse correlate with distinct T cell functional outcomes.

Conclusions:

  • Architectural and dynamic properties of the immunological synapse are key determinants of T cell subtype-specific responses.
  • Novel methodologies are essential for dissecting the complex interplay between synapse structure and T cell function.
  • Further research integrating cell biology and biophysics will illuminate the mechanisms underlying T cell functional diversity.