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 language | English (US) |
|---|---|
| Pages (from-to) | 241-246 |
| Number of pages | 6 |
| Journal | American Journal of Pathology |
| Volume | 137 |
| Issue number | 2 |
| State | Published - Jan 1 1990 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Pathology and Forensic Medicine
Cite this
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 journal › Article
}
TY - JOUR
T1 - Neuronal and microglial involvement in β-amyloid protein deposition in Alzheimer's disease
AU - Cras, P.
AU - Kawai, M.
AU - Siedlak, S.
AU - Mulvihill, P.
AU - Gambetti, P.
AU - Lowery, D.
AU - Gonzalez-DeWhitt, P.
AU - Greenberg, Barry
AU - Perry, G.
PY - 1990/1/1
Y1 - 1990/1/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=0025302414&partnerID=8YFLogxK
M3 - Article
C2 - 2117395
AN - SCOPUS:0025302414
VL - 137
SP - 241
EP - 246
JO - American Journal of Pathology
JF - American Journal of Pathology
SN - 0002-9440
IS - 2
ER -