NR AIQI
AU Mühleisen,H.; Gehrmann,J.; Meyermann,R.
TI Reactive microglia in Creutzfeldt-Jakob disease
QU Neuropathology and Applied Neurobiology 1995 Dec; 21(6): 505-17
PT journal article
AB Creutzfeldt-Jakob disease (CJD) is characterized by a loss of neurons accompanied by astrogliosis and spongiform changes in the neuropil. It has been recognized that reactive microglia occur in CJD but little is known about the regional distribution and extent of the microglial activation. We have, therefore, examined six brains from cases of sporadic CJD by immunohistochemical labelling of grey and white matter microglia from frontal, parietal, temporal, and occipital lobes, striatum, thalamus, cerebellum and brain stem with RCA-1, LCA, CD68, HLA-DR, and HAM56. Microglial activation occurred in the grey matter where astrogliosis and prion protein (PrP) deposits were prominent. Processes of activated microglia surrounded the outer rim of spongy vacuoles. A diffuse microglial response was seen in the white matter that was immunophenotypically different from grey matter. Double-labelling with microglial markers and anti-PrP showed that activated microglia did not contain PrP-immunoreactivity. Therefore a primary role of microglia in PrP processing seems unlikely. Activated microglia may contribute to neuronal damage in CJD due to their cytotoxic potential.
IN Anhand von Schnitten von 6 Creutzfeldt-Jakob-Gehirnen konnte in aktivierten Mikrogliazellen immunologisch kein Prionprotein nachgewiesen werden.
ZR 55
MH Aged; Autopsy; Biological Markers; Brain/*pathology; Creutzfeldt-Jakob Syndrome/*pathology; Female; Glial Fibrillary Acidic Protein/analysis; HLA-DR Antigens/analysis; Human; Immunohistochemistry; Male; Microglia/*pathology; Middle Age; Organ Specificity; Prions/analysis
AD Department of Pathology, University Hospital, Zürich, Switzerland.
SP englisch
PO England