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Related Experiment Video

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Imaging the Human Immunological Synapse
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A role for TASK2 channels in the human immunological synapse.

Juncal Fernández-Orth1, Leoni Rolfes1, Lukas Gola1

  • 1Department of Neurology, Westfälische Wilhelms-Universität, Münster, Germany.

European Journal of Immunology
|November 10, 2020
PubMed
Summary

The TASK2 channel is newly identified at the T cell immunological synapse, crucial for T cell activation. This finding offers potential new treatments for T cell-mediated autoimmune diseases.

Keywords:
T cellTASK2dSTORMimmunological synapseβ-tubulin

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Related Experiment Videos

Last Updated: Dec 1, 2025

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Area of Science:

  • Immunology
  • Cell Biology
  • Ion Channel Physiology

Background:

  • The immunological synapse forms between T cells and antigen-presenting cells (APCs) upon antigen recognition.
  • Ion channel activity, including calcium and potassium channels, is vital for T cell activation and proliferation.
  • The specific role of TASK2 channels in T cell function and autoimmune diseases is largely unknown.

Purpose of the Study:

  • To investigate the presence and function of TASK2 channels at the immunological synapse.
  • To determine the potential involvement of TASK2 channels in T cell-mediated autoimmune disorders.

Main Methods:

  • Mass spectrometry was used to identify proteins at the immunological synapse.
  • Epifluorescence and super-resolution single-molecule localization microscopy were employed to visualize channel localization.
  • T cell stimulation with CD3 antibodies was performed to mimic immune responses.

Main Results:

  • TASK2 channels were identified as novel components recruited to the immunological synapse upon stimulation.
  • TASK2 channels were observed to localize at the immunological synapse, potentially interacting with other key molecules.
  • These findings suggest TASK2 channels play a role alongside Kv1.3 and KCa3.1 channels in synapse function.

Conclusions:

  • TASK2 channels are novel players in the immunological synapse, contributing to T cell activation.
  • TASK2 channels represent a potential therapeutic target for autoimmune diseases driven by T cells.