Summary
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1.
Amyloid plaques found in the brains of Alzheimer's diseased patients are composed of the 42 amino acid beta-amyloid peptide (BAP) which is processed out of the larger amyloid precursor protein (APP).
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2.
To study the regulation of the APP gene expression, we have isolated the promoter region of this angle of this single-copy gene and produced a reporter gene system to determine if the promoter is responsive to agents that may cause the overproduction of APP leading to the abnormal accumulation of plaques in AD.
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3.
The promoter contains sequences homologous to heat shock elements, AP-1 binding sites, and phorbol ester-inducible sequences as well as GG-rich regions found in other constitutively expressed genes.
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4.
We show here that this promoter is inducible in cultured cells by interleukin-1 (IL-1) in a transient assay system and that the HSE and AP-1 binding site are required for this inducibility.
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5.
This induction of transcription from the APP promoter implies that this gene is responsive to tropic and/or trophic agents which may be present in the diseased brain.
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Donnelly, R.J., Friedhoff, A.J., Beer, B. et al. Interleukin-1 stimulates the beta-amyloid precursor protein promoter. Cell Mol Neurobiol 10, 485–495 (1990). https://doi.org/10.1007/BF00712843
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DOI: https://doi.org/10.1007/BF00712843