Immunolocalization of Kisspeptin Associated with Amyloid-β Deposits in the Pons of an Alzheimer’s Disease Patient

Article


Chilumuri, A., Ashioti, Maria, Nercessian, Amanda N. and Milton, Nathaniel G. N. 2013. Immunolocalization of Kisspeptin Associated with Amyloid-β Deposits in the Pons of an Alzheimer’s Disease Patient. Journal of Neurodegenerative Diseases. 2013 (879710), pp. 1-11.
AuthorsChilumuri, A., Ashioti, Maria, Nercessian, Amanda N. and Milton, Nathaniel G. N.
Abstract

The pons region of the Alzheimer’s disease (AD) brain is one of the last to show amyloid-β (Aβ) deposits and has been suggested to contain neuroprotective compounds. Kisspeptin (KP) is a hormone that activates the hypothalamic-pituitary-gonadal axis and has been suggested to be neuroprotective against Aβ toxicity. The localization of KP, plus the established endogenous neuroprotective compounds corticotropin releasing hormone (CRH) and catalase, in tissue sections from the pons region of a male AD subject has been determined in relation to Aβ deposits. Results showed Aβ deposits also stained with KP, CRH, and catalase antibodies. At high magnification the staining of deposits was either KP or catalase positive, and there was only a limited area of the deposits with KP-catalase colocalization. The CRH does not bind Aβ, whilst both KP and catalase can bind Aβ, suggesting that colocalization in Aβ deposits is not restricted to compounds that directly bind Aβ. The neuroprotective actions of KP, CRH, and catalase were confirmed in vitro, and fibrillar Aβ preparations were shown to stimulate the release of KP in vitro. In conclusion, neuroprotective KP, CRH, and catalase all colocalize with Aβ plaque-like deposits in the pons region from a male AD subject.

JournalJournal of Neurodegenerative Diseases
Journal citation2013 (879710), pp. 1-11
ISSN2090-858X
2090-8601
Year2013
PublisherHindawi Publishing Corporation
Publisher's version
License
CC BY
Digital Object Identifier (DOI)doi:10.1155/2013/879710
Web address (URL)https://doi.org/10.1155/2013/879710
Publication dates
Print16 May 2013
Publication process dates
Deposited17 Mar 2017
Accepted24 Apr 2013
FunderUniversity of Roehampton
University of Westminister
University of Roehampton
University of Westminister
Copyright information© 2013 The Authors. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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