The Heterogeneous Multiple Sclerosis Lesion: How Can We Assess and Modify a Degenerating Lesion?

Area of Science:

• Neuroscience
• Immunology
• Pathology

Background:

• Multiple sclerosis (MS) is a complex central nervous system disease characterized by neural tissue loss and cellular changes.
• Immune-mediated mechanisms driving acute relapses differ from those in chronic progressive MS, complicating treatment.
• Current therapeutic options are limited for managing the transition to secondary progressive MS.

Purpose of the Study:

• To review molecular and cellular factors contributing to neurodegeneration in progressive MS.
• To highlight the need for advanced biomarkers for monitoring disease progression.
• To explore strategies for neuroprotection and neurorepair in progressive MS.

Main Methods:

• Literature review focusing on molecular and cellular sequelae in progressive MS.
• Analysis of pathological changes in central nervous system white and gray matter.
• Discussion of potential therapeutic targets for neurorepair.

Main Results:

• Identified key molecular and cellular factors contributing to neurodegeneration in progressive MS.
• Emphasized the inadequacy of current methods for predicting disease progression.
• Highlighted the potential of neuroprotection and neurorepair strategies.

Conclusions:

• Effective management of progressive MS requires understanding its distinct pathological mechanisms.
• Development of novel biomarkers is essential for accurate disease monitoring and clinical trial design.
• Enabling endogenous cell growth and integrating transplanted cells are promising avenues for neurorepair in MS plaques.