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Related Experiment Videos

[Multiple sclerosis].

Jun-ichi Kira1

  • 1Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University.

Rinsho Shinkeigaku = Clinical Neurology
|February 2, 2006
PubMed
Summary
This summary is machine-generated.

Longitudinally extensive spinal cord lesions are more common in opticospinal multiple sclerosis (OSMS). Increased vascular endothelial growth factor (VEGF) and IL-17/IL-8 cytokines correlate with lesion severity in OSMS patients.

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Area of Science:

  • Neuroimmunology
  • Neuroinflammation
  • Biomarkers in Multiple Sclerosis

Context:

  • Opticospinal multiple sclerosis (OSMS) presents distinct lesion patterns compared to conventional multiple sclerosis (CMS), particularly in Japanese populations.
  • Longitudinally extensive spinal cord lesions (LESCLs) are a hallmark of OSMS, suggesting unique pathological mechanisms.
  • Understanding the molecular drivers of LESCLs is crucial for diagnosing and treating OSMS.

Purpose:

  • To investigate the role of vascular endothelial growth factor (VEGF) and the interleukin-17/interleukin-8 (IL-17/IL-8) system in the pathogenesis of LESCLs in Japanese OSMS patients.
  • To explore the correlation between serum VEGF, cerebrospinal fluid (CSF) cytokines (IL-17, IL-8), and lesion characteristics on MRI.
  • To elucidate the contribution of neutrophilic inflammation and vascular permeability to LESCL formation in OSMS.

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Summary:

  • Serum vascular endothelial growth factor (VEGF) levels were significantly elevated in Japanese MS patients during relapse, correlating positively with spinal cord lesion length on MRI.
  • The IL-17/IL-8 cytokine system in CSF was markedly activated in OSMS, with both cytokines correlating with CSF/serum albumin ratio and lesion length.
  • Neutrophil infiltration observed in OSMS spinal cord lesions suggests intrathecal IL-17/IL-8 axis activation, contributing to vascular permeability and inflammation.

Impact:

  • Findings suggest that elevated serum VEGF and CSF IL-17/IL-8 may be key contributors to the formation of LESCLs in OSMS.
  • These biomarkers could potentially aid in understanding disease progression and developing targeted therapies for OSMS.
  • The study highlights the importance of investigating specific inflammatory pathways in distinct MS subtypes.