Antigalactocerebroside serum demyelinates optic nerve in vivo.

Antiserum to the myelin lipid galactocerebroside (GalC) causes rapidly progressive focal demyelination when injected into guinea pig optic nerves. The capacity of anti-GalC to induce central nervous system demyelination is complement-dependent, and demyelinating activity is present in the immunoglobulin fraction of anti-GalC serum. Demyelination appears to result from primary damage to oligodendrocytes.