Abstract
Amyloid is a generic term for insoluble, often intensely hydrophobic, fibrous protein aggregates that arise from inappropriately folded versions of naturally-occurring polypeptides. The abnormal generation and accumulation of amyloid, often referred to as amyloidogenesis, has been associated with the immune and pro-inflammatory pathology of several progressive age-related diseases of the human central nervous system (CNS) including Alzheimer’s disease (AD) and age-related macular degeneration (AMD). This ‘research perspective’ paper reviews some of the research history, biophysics, molecular-genetics and environmental factors concerning the contribution of amyloid beta (Aβ) peptides, derived from beta-amyloid precursor protein (βAPP), to AD and AMD that suggests an extensive similarity in immune and inflammatory degenerative mechanisms between these two CNS diseases.
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Acknowledgments
The work in this research perspective was presented in part at the Alzheimer Association International Conference 2013 (AAIC 2013) Annual Meeting held in Boston MA, USA and at the AAIC 2014 held in Copenhagen, Denmark. Sincere thanks are extended to Drs. PN Alexandrov, F Culicchia, C Eicken, and C Hebel for the short postmortem interval (PMI) human brain tissues or extracts, miRNA array work, and initial data interpretation and to D Guillot and J Lockwood for the expert technical assistance. Additional thanks are extended to the physicians and neuropathologists of Canada and the USA who have provided high-quality, short postmortem interval human brain and retinal tissues for study. Additional human control and AD brain tissues were provided by the Memory Impairments and Neurological Disorders (MIND) Institute and the University of California, Irvine Alzheimer’s Disease Research Center (UCI-ADRC; NIA P50 AG16573). Research on miRNA in the Lukiw laboratory involving the innate-immune response in AD, amyloidogenesis, and neuro-inflammation was supported through a COBRE III Pilot Project NIH/NIGMS Grant P30-GM103340, an unrestricted grant to the LSU Eye Center from Research to Prevent Blindness (RPB); the Louisiana Biotechnology Research Network (LBRN); and NIH grants NEI EY006311, NIA AG18031, and NIA AG038834. Research on AD, Down’s syndrome, and amyloidosis in the Sambamurti laboratory are supported by the Alzheimer’s Association IIRG 10-173180 and NIH NIA AG046200.
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Zhao, Y., Bhattacharjee, S., Jones, B.M. et al. Beta-Amyloid Precursor Protein (βAPP) Processing in Alzheimer’s Disease (AD) and Age-Related Macular Degeneration (AMD). Mol Neurobiol 52, 533–544 (2015). https://doi.org/10.1007/s12035-014-8886-3
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DOI: https://doi.org/10.1007/s12035-014-8886-3