Clusterin mRNA detected in increased quantities in the cervical spinal cord
of cattle with bovine spongiform encephalopathy (BSE), was localized mainl
y in the neuroglia (including astrocytes) of the lateral and ventral areas
of white matter. Axonal degeneration was also observed in these areas. The
dorsal horns of the spinal cord in which BSE prion protein (PrPBSE) was dep
osited did not exhibit strong clusterin "up-regulation" but showed increase
d clusterin immunolabelling with a punctate distribution in the neuropil. L
abelling of adjacent sections of the grey matter in BSE-affected spinal cor
d and thalamus demonstrated that the clusterin was deposited in association
with extracellular PrPBSE. (C) 1999 W.B. Saunders Company Limited.