期刊
JOURNAL OF ALZHEIMERS DISEASE
卷 53, 期 1, 页码 1-14出版社
IOS PRESS
DOI: 10.3233/JAD-160076
关键词
Alzheimer's disease; autophagy; collapsin response mediator protein-2; cyclin-dependent kinase; microtubule-associated protein tau; therapeutic; vesicle transport
资金
- National Institutes of Health [NS082283, NS093594]
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [R15NS093594, R01NS082283] Funding Source: NIH RePORTER
Alzheimer's disease (AD) has long been viewed as a pathology that must be caused either by aberrant amyloid-beta protein precursor (A beta PP) processing, dysfunctional tau protein processing, or a combination of these two factors. This is a reasonable assumption because amyloid-beta peptide (A beta) accumulation and tau hyperphosphorylation are the defining histological features in AD, and because A beta PP and tau mutations can cause AD in humans or AD-like features in animal models. Nonetheless, other protein players are emerging that one can argue are significant etiological players in subsets of AD and potentially novel, druggable targets. In particular, the microtubule-associated protein CRMP2 (collapsin response mediator protein-2) bears striking analogies to tau and is similarly relevant to AD. Like tau, CRMP2 dynamically regulates microtubule stability; it is acted upon by the same kinases; collects similarly in neurofibrillary tangles (NFTs); and when sequestered in NFTs, complexes with critical synapse-stabilizing factors. Additionally, CRMP2 is becoming recognized as an important adaptor protein involved in vesicle trafficking, amyloidogenesis and autophagy, in ways that tau is not. This review systematically compares the biology of CRMP2 to that of tau in the context of AD and explores the hypothesis that CRMP2 is an etiologically significant protein in AD and participates in pathways that can be rationally engaged for therapeutic benefit.
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