Journal
ELECTROPHORESIS
Volume 33, Issue 24, Pages 3608-3616Publisher
WILEY
DOI: 10.1002/elps.201200297
Keywords
Alzheimer's disease; ss-Amyloid; Intraneuronal; Protein interactions; Proteomics
Funding
- EC FP-7 Health Memoload
- EC FP-7 Health LipiDiDiet [211696]
- Hungarian National Science Foundation [TAMOP 4.2.1/B-09/1/KON-2010-003]
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Amyloidogenic aggregation and misfolding of proteins are linked to neurodegeneration. The mechanism of neurodegeneration in Alzheimer's disease, which gives rise to severe neuronal death and memory loss, is not yet fully understood. The amyloid hypothesis remains the most accepted theory for the pathomechanism of the disease. It was suggested that beta-amyloid accumulation may play a key role in initiating the neurodegenerative processes. The recent intracellular beta-amyloid (iA beta) hypothesis emphasizes the primary role of iA beta to initiate the disease by interaction with cytoplasmic proteins and cell organelles, thereby triggering apoptosis. Sophisticated methods (proteomics, protein microarray, and super resolution microscopy) have been used for studying iA beta interactions with proteins and membraneous structures. The present review summarizes the studies on the origin of iA beta and the base of its neurotoxicity: interactions with cytosolic proteins and several cell organelles such as endoplasmic reticulum, endosomes, lysosomes, ribosomes, mitochondria, and the microtubular system.
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