Pediatric Neuroimmunology of Demyelinating Disorders

Pediatric demyelinating disorders arise from immune-mediated damage to myelin in the central nervous system of children and adolescents. These conditions encompass a spectrum that includes multiple sclerosis, neuromyelitis optica spectrum disorder and myelin oligodendrocyte glycoprotein antibody–associated disease, as well as acute disseminated encephalomyelitis. In contrast to adults, paediatric presentations often involve bilateral optic neuritis, a higher frequency of seronegative or MOG-IgG–positive cases and a variable risk of progression to chronic disease. Magnetic resonance imaging remains the cornerstone for lesion detection, while blood and cerebrospinal fluid assays for aquaporin-4 and MOG antibodies improve diagnostic specificity. Early immunotherapy with high-dose corticosteroids, intravenous immunoglobulin or plasmapheresis can induce remission, but long-term management increasingly relies on targeted immunomodulation to prevent relapse and minimise steroid exposure. Emerging data highlight the importance of age-specific biology, including developing blood–brain barrier properties and immunoregulatory networks. A comprehensive approach to paediatric neuroimmunology must integrate advances in biomarker discovery, imaging protocols and novel therapies to address the lifelong impact of demyelinating injury on cognition, mobility and quality of life.

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Pediatric Neuroimmunology of Demyelinating Disorders publication trend

The graph below shows the total number of articles in pediatric neuroimmunology of demyelinating disorders across all publications each year (not limited to Nature Index journals).

Technical terms

Demyelination: Injury to the myelin sheath of nerve fibres, impairing signal conduction.

Neuromyelitis optica spectrum disorder (NMOSD): An autoimmune condition characterised by optic nerve and spinal cord inflammation, often associated with aquaporin-4 antibodies.

Myelin oligodendrocyte glycoprotein antibody (MOG-IgG): An autoantibody directed against a myelin surface protein, implicated in a subset of paediatric demyelinating cases.

Aquaporin-4 antibody (AQP4-IgG): An autoantibody against the water channel protein aquaporin-4, highly specific for NMOSD.

Optic neuritis: Inflammatory demyelination of the optic nerve, leading to acute visual loss.

Acute disseminated encephalomyelitis (ADEM): A monophasic inflammatory demyelinating event often following infection or vaccination.

Expanded Disability Status Scale (EDSS): A method of quantifying neurological impairment and disability in demyelinating diseases.

References

1. Risk Factors and Nomogram for Predicting Relapse Risk in Pediatric Neuromyelitis Optica Spectrum Disorders. Frontiers in Immunology (2022).
2. Characteristics of Optic Neuritis in South Korean Children and Adolescents: A Retrospective Multicenter Study. Journal of Ophthalmology (2022).
3. Pediatric Optic Neuritis: Description of Four Cases and Review of the Literature. Children (2021).