Secreted amyloid precursor protein alpha activates neuronal insulin receptors and prevents diabetes-induced encephalopathy.

Abstract excerpt

Secreted amyloid precursor protein alpha (sAPPα) is a potent neurotrophin in the CNS but a dedicated receptor has not been found. However, protein interactions involving amyloid beta (Aβ), a peptide cleaved from the same parent peptide as sAPPα, indicate that insulin receptors (IRs) could be a target of amyloid peptides. In this study, in vitro analysis of cortical neuronal cultures revealed that exogenous sAPPα...

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