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Related Experiment Video

Updated: Jul 9, 2026

In Vitro Myelination of Peripheral Axons in a Coculture of Rat Dorsal Root Ganglion Explants and Schwann Cells

In Vitro Myelination of Peripheral Axons in a Coculture of Rat Dorsal Root Ganglion Explants and Schwann Cells

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[Axonal involvement in dysimmune neuropathies].

¹Service de Neurologie, CHU Limoges, 87000 Limoges, France. jean-michel.vallat@unilim.fr

Revue Neurologique

|December 19, 2007

Summary

This summary is machine-generated.

Dysimmune neuropathies involve axonal damage, often secondary to demyelination. Understanding and treating this axonal impairment, seen in Guillain-Barré syndrome and others, remains challenging but crucial.

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Scoring Central Nervous System Inflammation, Demyelination, and Axon Injury in Experimental Autoimmune Encephalomyelitis

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Published on: February 23, 2024

Area of Science:

Neurology
Immunology
Cell Biology

Context:

Dysimmune neuropathies, including Guillain-Barré syndrome and chronic inflammatory demyelinating polyradiculoneuritis, feature axonal impairment.
Axonal damage can be primary or secondary to demyelination, with mechanisms involving Schwann cell interactions and inflammatory processes.
Identifying and assessing axonal impairment, alongside its regenerative potential, presents diagnostic challenges.

Purpose:

To review the mechanisms of axonal impairment in dysimmune neuropathies.
To discuss the variability in the timing and severity of axonal damage across different neuropathies.
To explore current and potential therapeutic strategies for managing axonal impairment.

Summary:

Axonal lesions in dysimmune neuropathies arise from the intimate relationship between axons and myelinating cells (Schwann cells/oligodendrocytes).
Pathological processes in Schwann cells, inflammatory 'by-stander effects', edema, direct immune attack, and ion channel disruption contribute to axonal damage.
Acute Guillain-Barré syndrome shows severe axonal impairment (AMSAN/AMAN), while chronic forms involve complex inflammatory and cellular mechanisms.

Impact:

Effective treatments for acute Guillain-Barré syndrome include plasma exchange and intravenous immunoglobulins.
Corticosteroids, plasma exchange, and immunoglobulins show efficacy in chronic inflammatory demyelinating polyradiculoneuritis.
Developing novel, validated treatments for these neuropathies is hindered by patient cohort limitations and the complexity of axonal damage mechanisms.