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Cited by 454

The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.

Processing of Alzheimer beta/A4 amyloid precursor protein: modulation by agents that regulate protein phosphorylation.

Open access
Buxbaum, J D, Gandy, S E, Cicchetti, P, Ehrlich, M E, Czernik, A J, Fracasso, R P, Ramabhadran, T V, Unterbeck, A J, Greengard, P·1990·Proceedings of the National Academy of Sciences

Abstract

The turnover and processing of the Alzheimer beta/A4 amyloid precursor protein (beta APP) has been studied in PC12 cells after treatment with agents that regulate protein phosphorylation. Phorbol 12,13-dibutyrate, an agent that stimulates protein kinase C, decreased the levels of mature beta APP and increased the levels of 15- and 19-kDa peptides. These peptides appeared to be COOH-terminal fragments of beta APP, which arose when phorbol 12,13-dibutyrate increased the rate of proteolytic processing of mature forms of beta APP. Okadaic acid, an inhibitor of protein phosphatases 1 and 2A, also led to decreased levels of mature beta APP and increased levels of the 15- and 19-kDa peptides. H-7, an inhibitor of protein kinase C and of several other protein kinases, apparently decreased the rate of proteolytic processing of mature beta APP. The sizes of the putative COOH-terminal fragments observed after treatment with either phorbol 12,13-dibutyrate or okadaic acid suggest that one or both may contain the entire beta/A4 region of beta APP and thus be amyloidogenic. Our results support the hypothesis that abnormal protein phosphorylation may play a role in the development of the cerebral amyloidosis that accompanies Alzheimer disease.

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Crossref · 10.1073/pnas.87.15.6003

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Metadata

Authors
Buxbaum, J. D., Gandy, S. E., Cicchetti, P., Ehrlich, M. E., Czernik, A. J., Fracasso, R. P., Ramabhadran, T. V., Unterbeck, A. J., & Greengard, P.
Venue
Proceedings of the National Academy of Sciences
Published
1990-08
Volume
87
Issue
15
Pages
6003-6006
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1979240613
Cited by
454
References
24
FWCI
21.47
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Processing of Alzheimer beta/A4 amyloid precursor protein: modulation by agents that regulate protein phosphorylation. https://app.cochat.ai/papers/10.1073/pnas.87.15.6003
The paper
Buxbaum, J. D., Gandy, S. E., Cicchetti, P., Ehrlich, M. E., Czernik, A. J., Fracasso, R. P., Ramabhadran, T. V., Unterbeck, A. J., & Greengard, P. (1990). Processing of Alzheimer beta/A4 amyloid precursor protein: modulation by agents that regulate protein phosphorylation. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.87.15.6003

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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