Subcellular Distribution of Sulfated Glucuronyl Glycolipids in Human Peripheral Motor and Sensory Nerves

Sulfated glucuronyl glycolipids (SGGL) have been implicated as important target antigens in patients with demyelinating polyneuropathy and IgM paraproteinemia. Sulfated glucuronyl paragloboside (SGPG), a major species of SGGL, was identified in the subcellular fractions of human peripheral motor and...

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Bibliographic Details
Published in:Journal of biomedical science 1994-03, Vol.1 (3), p.167-174
Main Authors: Yu, Robert K., Yoshino, Hiide, Yamawaki, Masanaga, Yoshino, Jun E., Ariga, Toshio
Format: Article
Language:English
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Summary:Sulfated glucuronyl glycolipids (SGGL) have been implicated as important target antigens in patients with demyelinating polyneuropathy and IgM paraproteinemia. Sulfated glucuronyl paragloboside (SGPG), a major species of SGGL, was identified in the subcellular fractions of human peripheral motor and sensory nerves using a simple and quantitative method. SGPG was found to be concentrated in the myelin-enriched fractions of both motor and sensory nerves (1.3 ± 0.3 and 1.5 ± 0.4 µg/mg protein, respectively), whereas its concentration was 0.9 ± 0.2 and 1.8 ± 0.6 µg/mg protein in the axolemmaenriched fractions of motor and sensory nerves, respectively. Our finding that SGPG is more abundant in the human sensory nerve axolemma-enriched fraction may account for the clinical and pathological observations that the lesions are more heavily concentrated in the sensory nerve than in other parts of the nerve tissues in this disorder.
ISSN:1021-7770
1423-0127
DOI:10.1159/000456785