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Systemic passive transfer studies using IgM monoclonal antibodies to sulfatide
1Dipartimento di Scienze Neurologiche e della Visione, Università di Verona, Italy.
Journal of Neuroimmunology
|December 1, 1995
Summary
Benign IgM-gamma anti-Sulfatide (SUL) antibodies caused demyelinating neuropathy. Passive transfer to rabbits created similar nerve lesions, supporting SUL antibodies
Area of Science:
- Neurology
- Immunology
- Pathology
Background:
- Presents a case of benign IgM-gamma anti-Sulfatide (SUL) antibody-associated neuropathy.
- Details the clinico-pathological features of this demyelinating neuropathy.
Observation:
- Monoclonal IgM antibodies against Sulfatide (SUL) were isolated and retained biological activity.
- These antibodies were passively transferred to newborn rabbits.
Findings:
- Passive transfer induced demyelinating nerve lesions in rabbits, mirroring human neuropathy.
- Human IgM anti-SUL antibodies were observed binding to specific nerve structures (Schmidt-Lanterman incisures, nodes of Ranvier).
- Antibody binding to satellite cell perineuronal sheaths in dorsal root ganglia was noted.
Implications:
- Findings suggest a potential demyelinating role for anti-SUL antibodies, possibly via myelin-specific and complement-dependent mechanisms.
- The observed binding patterns support a pathogenetic role for anti-SUL antibodies in sensorimotor syndromes.