Resistance is futile: antineuronal autoimmunity in multiple sclerosis

Area of Science:

• Neuroimmunology
• Neurodegeneration
• Central Nervous System Disorders

Background:

• Multiple sclerosis (MS) was historically viewed as a myelin-centric disease, with myelin loss as the primary cause of neurological dysfunction.
• Recent evidence indicates axonal damage correlates better with clinical symptoms than demyelination.
• Current MS pathogenesis research largely overlooks the role of autoimmunity targeting neuronal and axonal components.

Purpose of the Study:

• To propose a revised hypothesis for MS pathogenesis focusing on autoimmunity against neuronal and axonal antigens.
• To explore the potential contribution of antibodies targeting neuronal and axonal components to MS pathology.
• To offer new perspectives for therapeutic strategies aimed at preventing axonal loss in MS.

Main Methods:

• This study is primarily conceptual, drawing on existing research from MS and other neurodegenerative diseases.
• It synthesizes evidence to hypothesize the role of autoimmunity against neuronal and axonal antigens in MS.
• No new experimental data was generated; it's a review and hypothesis-driven perspective.

Main Results:

• The study hypothesizes that autoimmune responses targeting neuronal and axonal antigens significantly contribute to axonal pathology in MS.
• This perspective challenges the traditional myelin-centric view of MS pathogenesis.
• It suggests that axonal damage in MS may be driven by autoimmunity beyond myelin-specific responses.

Conclusions:

• Autoimmunity against neuronal and axonal antigens is proposed as a significant factor in MS-related axonal pathology.
• This hypothesis broadens the understanding of MS pathogenesis beyond demyelination.
• It opens avenues for novel therapeutic approaches targeting axonal protection and preventing irreversible disability in MS.