Neuronal and microglial involvement in β-amyloid protein deposition in Alzheimer's disease

P. Cras, M. Kawai, S. Siedlak, P. Mulvihill, P. Gambetti, D. Lowery, P. Gonzalez-DeWhitt, Barry Greenberg, G. Perry

Research output: Contribution to journalArticle

Abstract

This study was undertaken to localize amyloid precursor protein (APP) and to determine how APP might be released and proteolyzed to yield the β-amyloid protein deposits found in senile plaques in the brains of Alzheimer's disease patients. We found that antibodies to recombinantly expressed APP labeled many normal neurons and neurites. In addition, dystrophic neurites in different types of senile plaques and degenerating neurons in the temporal cortex and hippocampus of Alzheimer's disease patients were immunostained. We also detected small clusters of dystrophic APP immunoreactive neurites that were not associated with β-amyloid protein deposits. Microglia was involved in different ytpes of senile plaques and often were associated closely with APP immunoreactive neurites and neurons. The greatest concurrence of APP immunoreactivity and reactive microglia was seen in the subiculum and area CA1, regions with a density of congophilic plaques and subject to intense Alzheimer's pathology. Our findings suggest that neuronally derived APP is the source for senile plaque β-amyloid protein, while microglia may act as processing cells.

Original languageEnglish (US)
Pages (from-to)241-246
Number of pages6
JournalAmerican Journal of Pathology
Volume137
Issue number2
StatePublished - Jan 1 1990
Externally publishedYes

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Amyloidogenic Proteins
Amyloid beta-Protein Precursor
Amyloid Plaques
Alzheimer Disease
Neurites
Microglia
Neurons
Hippocampus
Brain Diseases
Temporal Lobe
Pathology
Antibodies

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

Cras, P., Kawai, M., Siedlak, S., Mulvihill, P., Gambetti, P., Lowery, D., ... Perry, G. (1990). Neuronal and microglial involvement in β-amyloid protein deposition in Alzheimer's disease. American Journal of Pathology, 137(2), 241-246.

Neuronal and microglial involvement in β-amyloid protein deposition in Alzheimer's disease. / Cras, P.; Kawai, M.; Siedlak, S.; Mulvihill, P.; Gambetti, P.; Lowery, D.; Gonzalez-DeWhitt, P.; Greenberg, Barry; Perry, G.

In: American Journal of Pathology, Vol. 137, No. 2, 01.01.1990, p. 241-246.

Research output: Contribution to journalArticle

Cras, P, Kawai, M, Siedlak, S, Mulvihill, P, Gambetti, P, Lowery, D, Gonzalez-DeWhitt, P, Greenberg, B & Perry, G 1990, 'Neuronal and microglial involvement in β-amyloid protein deposition in Alzheimer's disease', American Journal of Pathology, vol. 137, no. 2, pp. 241-246.
Cras P, Kawai M, Siedlak S, Mulvihill P, Gambetti P, Lowery D et al. Neuronal and microglial involvement in β-amyloid protein deposition in Alzheimer's disease. American Journal of Pathology. 1990 Jan 1;137(2):241-246.
Cras, P. ; Kawai, M. ; Siedlak, S. ; Mulvihill, P. ; Gambetti, P. ; Lowery, D. ; Gonzalez-DeWhitt, P. ; Greenberg, Barry ; Perry, G. / Neuronal and microglial involvement in β-amyloid protein deposition in Alzheimer's disease. In: American Journal of Pathology. 1990 ; Vol. 137, No. 2. pp. 241-246.
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