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Related Concept Videos

T Cell Types and Functions01:24

T Cell Types and Functions

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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Encephalitis ll: Pathophysiology01:26

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Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
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Disorders of the Nervous Tissue01:28

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Autoimmune Disorders01:29

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Isolating Central Nervous System Tissues and Associated Meninges for the Downstream Analysis of Immune cells
09:35

Isolating Central Nervous System Tissues and Associated Meninges for the Downstream Analysis of Immune cells

Published on: May 19, 2020

CD8-mediated inflammatory central nervous system disorders.

Anne Willing1, Manuel A Friese

  • 1Institut für Neuroimmunologie und Klinische MS-Forschung, Zentrum für Molekulare Neurobiologie, Universitätsklinikum Hamburg-Eppendorf, Falkenried, Hamburg, Germany.

Current Opinion in Neurology
|May 2, 2012
PubMed
Summary
This summary is machine-generated.

CD8+ T cells play dual roles in central nervous system (CNS) autoimmune disorders, aiding viral clearance but also causing pathology. Understanding their specific functions is key for developing targeted therapies.

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Scoring Central Nervous System Inflammation, Demyelination, and Axon Injury in Experimental Autoimmune Encephalomyelitis
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Scoring Central Nervous System Inflammation, Demyelination, and Axon Injury in Experimental Autoimmune Encephalomyelitis

Published on: February 23, 2024

Area of Science:

  • Neuroimmunology
  • Immunology
  • Virology

Background:

  • CD8+ T cells exhibit both cytotoxic and regulatory functions in CNS autoimmune disorders.
  • These cells are critical for viral clearance in encephalitis but can also drive immunopathology.

Purpose of the Study:

  • To review the diverse roles of CD8+ T cells in inflammatory central nervous system disorders.
  • To explore their involvement in conditions like multiple sclerosis and viral encephalitis.

Main Methods:

  • Review of recent genetic association studies, particularly concerning HLA-A0201 allele in multiple sclerosis.
  • Analysis of CD8+ T cell infiltration and migration patterns within the CNS.
  • Examination of mechanisms by which CD8+ T cells can induce autoimmune-like pathology.

Main Results:

  • Genetic evidence suggests a protective role for HLA-A0201 in multiple sclerosis.
  • CD8+ T cells are prevalent in white matter and cortical lesions within the CNS.
  • They can trigger autoimmune-like responses through cross-reactivity with latent viruses, posing risks under immunosuppression.

Conclusions:

  • Further research is needed to identify the precise specificity and functional phenotypes of CNS-infiltrating CD8+ T cells.
  • This knowledge is crucial for developing targeted therapeutic strategies for CNS autoimmune diseases and viral immunopathology.