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Related Concept Videos

Multiple Sclerosis l: Introduction01:19

Multiple Sclerosis l: Introduction

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Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
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Midkine and multiple sclerosis.

Hideyuki Takeuchi1

  • 1Department of Neuroimmunology, Research Institute of Environmental Medicine, Nagoya University, Nagoya, 464-8601, Japan.

British Journal of Pharmacology
|January 28, 2014
PubMed
Summary

Midkine (MK) inhibition suppresses experimental autoimmune encephalomyelitis (EAE) by increasing regulatory T-cells (Treg) and tolerogenic dendritic cells (DCreg). Blocking MK signaling ameliorates autoimmune disease, offering a potential therapeutic strategy for multiple sclerosis (MS).

Keywords:
aptamerexperimental autoimmune encephalomyelitismidkinemultiple sclerosisregulatory T-celltolerogenic dendritic cell

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Area of Science:

  • Neuroimmunology
  • Autoimmune diseases
  • Central Nervous System (CNS) disorders

Background:

  • Multiple sclerosis (MS) is an autoimmune neurological disease.
  • MS and its model EAE involve Th1/Th17 cells.
  • Regulatory T-cells (Treg) and tolerogenic dendritic cells (DCreg) are crucial for tolerance.

Purpose of the Study:

  • Investigate the role of midkine (MK) in regulating Treg and DCreg cells.
  • Determine if MK inhibition can ameliorate experimental autoimmune encephalomyelitis (EAE).

Main Methods:

  • Assessed the effect of MK removal on EAE severity.
  • Analyzed Treg and Th1/Th17 cell populations.
  • Investigated MK's impact on STAT5 and STAT3 phosphorylation.
  • Evaluated RNA aptamer blockade of MK signaling in EAE.

Main Results:

  • MK removal suppressed EAE, expanding Treg cells and reducing autoreactive Th1/Th17 cells.
  • MK suppressed Treg differentiation by inhibiting STAT5 phosphorylation.
  • MK reduced DCreg development by inhibiting STAT3 phosphorylation.
  • MK blockade elevated DCreg and Treg cells, ameliorating EAE without adverse effects.

Conclusions:

  • MK plays a critical role in regulating Treg and DCreg cell populations.
  • Inhibiting MK signaling is a promising therapeutic strategy for autoimmune diseases like MS.
  • Targeting MK offers a novel approach to restoring immune tolerance in CNS autoimmune disorders.