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Related Concept Videos

T Cell Types and Functions01:24

T Cell Types and Functions

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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
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Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
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The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
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Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
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Related Experiment Video

Updated: May 31, 2025

Author Spotlight: Achieving High-Purity In Vitro Differentiation of Th17 Cells Using Cytokine Concentration Modulation
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Author Spotlight: Achieving High-Purity In Vitro Differentiation of Th17 Cells Using Cytokine Concentration Modulation

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Defining a novel DYRK1A-gp130/IL-6R-pSTAT axis that regulates Th17 differentiation.

Matthew Malueg1, Keagan G Moo1, Azlann Arnett1

  • 1Center for Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA, United States.

Immunohorizons
|January 23, 2025
PubMed
Summary

Dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYRK1A) regulates T helper 17 (Th17) cell differentiation, a key factor in autoimmune diseases. DYRK1A modulates interleukin-6 signaling and receptor expression, offering a potential therapeutic target.

Keywords:
DYRK1AIL-6 signalingTh17 differentiationgp130

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Area of Science:

  • Immunology
  • Molecular Biology
  • Genetics

Background:

  • Dysregulated T helper 17 (Th17) cell differentiation is implicated in autoimmune diseases.
  • Understanding Th17 regulation is crucial for identifying therapeutic targets and high-risk individuals.

Purpose of the Study:

  • To investigate the role of dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYRK1A) in Th17 cell differentiation.
  • To elucidate the mechanisms by which DYRK1A regulates Th17 differentiation and interleukin-6 (IL-6) signaling.

Main Methods:

  • Utilized a conditional knockout mouse model to study DYRK1A function in Th17 differentiation.
  • Employed chemical inhibitors to explore DYRK1A's mechanistic role.
  • Analyzed the impact of DYRK1A on IL-6 receptor subunit expression on naïve CD4+ T cells.

Main Results:

  • Validated DYRK1A as a dose-dependent regulator of Th17 differentiation.
  • Demonstrated that DYRK1A modulates IL-6 signaling through multiple mechanisms.
  • Identified a novel function of DYRK1A in regulating surface IL-6 receptor subunit expression.
  • Observed increased IL-6 responsiveness linked to DYRK1A in individuals with Down syndrome.

Conclusions:

  • DYRK1A is a novel regulator of Th17 cell differentiation with a significant impact on IL-6 signaling.
  • DYRK1A represents a druggable target for therapeutic intervention and prognostic assessment in autoimmunity.
  • Findings in Down syndrome highlight the physiological relevance of DYRK1A in immune function and IL-6 responsiveness.