Aβ-dependent inhibition of LTP in different intracortical circuits of the visual cortex: The role of RAGE
Journal of Alzheimer's Disease, ISSN: 1387-2877, Vol: 17, Issue: 1, Page: 59-68
2009
- 53Citations
- 32Captures
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Metrics Details
- Citations53
- Citation Indexes53
- 53
- CrossRef35
- Captures32
- Readers32
- 32
Article Description
Oligomeric amyloid-β (Aβ) interferes with long term potentiation (LTP) and cognitive processes, suggesting that Aβ peptides may play a role in the neuronal dysfunction which characterizes the early stages of Alzheimer's disease (AD). Multiple lines of evidence have highlighted RAGE (receptor for advanced glycation end-products) as a receptor involved in Aβ-induced neuronal and synaptic dysfunction. In the present study, we investigated the effect of oligomeric soluble Aβ-{1-42} on LTP elicited by the stimulation of different intracortical pathways in the mouse visual cortex. A variety of nanomolar concentrations (20-200 nM) of Aβ-{1-42} were able to inhibit LTP in cortical layer II-III induced by either white matter (WM-Layer II/III) or the layer II/III (horizontal pathway) stimulation, whereas the inhibition of LTP was more susceptible to Aβ-{1-42}, which occurred at 20 nM of Aβ, when stimulating layer II-III horizontal pathway. Remarkably, cortical slices were resistant to nanomolar Aβ-{1-42} in the absence of RAGE (genetic deletion of RAGE) or blocking RAGE by RAGE antibody. These results indicate that nanomolar Aβ inhibits LTP expression in different neocortical circuits. Crucially, it is demonstrated that Aβ-induced reduction of LTP in different cortical pathways is mediated by RAGE. © 2009 - IOS Press.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=67650882249&origin=inward; http://dx.doi.org/10.3233/jad-2009-1045; http://www.ncbi.nlm.nih.gov/pubmed/19221410; http://www.medra.org/servlet/aliasResolver?alias=iospress&doi=10.3233/JAD-2009-1045; https://journals.sagepub.com/doi/full/10.3233/JAD-2009-1045; https://dx.doi.org/10.3233/jad-2009-1045; https://content.iospress.com:443/articles/journal-of-alzheimers-disease/jad01045
IOS Press
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