Release of Alzheimer amyloid precursor derivatives stimulated by activation of muscarinic acetylcholine receptors
RM Nitsch, BE Slack, RJ Wurtman, JH Growdon - Science, 1992 - science.org
RM Nitsch, BE Slack, RJ Wurtman, JH Growdon
Science, 1992•science.orgAltered processing of the amyloid precursor protein (APP) is a central event in the formation
of amyloid deposits in the brains of individuals with Alzheimer's disease. To investigate
whether cellular APP processing is controlled by cell-surface neurotransmitter receptors,
human embryonic kidney (293) cell lines were transfected with the genes for human brain
muscarinic acetylcholine receptors. Stimulation of m1 and m3 receptor subtypes with
carbachol increased the basal release of APP derivatives within minutes of treatment …
of amyloid deposits in the brains of individuals with Alzheimer's disease. To investigate
whether cellular APP processing is controlled by cell-surface neurotransmitter receptors,
human embryonic kidney (293) cell lines were transfected with the genes for human brain
muscarinic acetylcholine receptors. Stimulation of m1 and m3 receptor subtypes with
carbachol increased the basal release of APP derivatives within minutes of treatment …
Altered processing of the amyloid precursor protein (APP) is a central event in the formation of amyloid deposits in the brains of individuals with Alzheimer's disease. To investigate whether cellular APP processing is controlled by cell-surface neurotransmitter receptors, human embryonic kidney (293) cell lines were transfected with the genes for human brain muscarinic acetylcholine receptors. Stimulation of m1 and m3 receptor subtypes with carbachol increased the basal release of APP derivatives within minutes of treatment, indicating that preexisting APP is released in response to receptor activation. Receptor-activated APP release was blocked by staurosporine, suggesting that protein kinases mediate neurotransmitter receptor-controlled APP processing.
AAAS