Chronic inflammatory demyelinating polyradiculoneuropathy: from pathology to phenotype

Area of Science:

• Neurology
• Immunology
• Pathology

Background:

• Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) presents with diverse phenotypes, challenging its classification as a discrete entity.
• Current understanding suggests CIDP involves a complex interplay of cell-mediated and humoral immune responses targeting peripheral nerves.

Purpose of the Study:

• To review the current understanding of the roles of cellular and humoral immunity in CIDP pathogenesis.
• To explore the contributions of T cell and autoantibody responses in the disease spectrum.
• To highlight the potential for linking clinical phenotypes with underlying mechanisms for improved diagnostics and treatments.

Main Methods:

• Literature review of studies on CIDP pathogenesis.
• Analysis of animal models of inflammatory neuropathy.
• Examination of evidence for immune responses in human inflammatory neuropathies.

Main Results:

• Animal models implicate T cell responses to myelin antigens.
• Human neuropathies show evidence of antibody responses to Schwann cells, myelin, and nodal antigens.
• The precise balance of T cell versus autoantibody contributions in CIDP remains unclear.

Conclusions:

• CIDP likely represents a spectrum of conditions with varying immune mechanisms.
• Further research into cellular and humoral pathways is crucial.
• Delineating specific phenotypes and mechanisms may enable personalized diagnostic and therapeutic strategies for CIDP.