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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Alzheimers+Dis
2014 ; 42 Suppl 3
(0 3
): S167-76
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Amyloidosis associated with cerebral amyloid angiopathy: cell signaling pathways
elicited in cerebral endothelial cells
#MMPMID24670400
Ghiso J
; Fossati S
; Rostagno A
J Alzheimers Dis
2014[]; 42 Suppl 3
(0 3
): S167-76
PMID24670400
show ga
Substantial genetic, biochemical, and in vivo data indicate that progressive
accumulation of amyloid-? (A?) plays a central role in the pathogenesis of
Alzheimer's disease (AD). Historically centered in the importance of parenchymal
plaques, the role of cerebral amyloid angiopathy (CAA)--a frequently neglected
amyloid deposit present in >80% of AD cases--for the mechanism of disease
pathogenesis is now starting to emerge. CAA consistently associates with
microvascular modifications, ischemic lesions, micro- and macro-hemorrhages, and
dementia, progressively affecting cerebral blood flow, altering blood-brain
barrier permeability, interfering with brain clearance mechanisms and triggering
a cascade of deleterious pro-inflammatory and metabolic events that compromise
the integrity of the neurovascular unit. New evidence highlights the contribution
of pre-fibrillar A? in the induction of cerebral endothelial cell dysfunction.
The recently discovered interaction of oligomeric A? species with TRAIL DR4 and
DR5 cell surface death receptors mediates the engagement of mitochondrial
pathways and sequential activation of multiple caspases, eliciting a cascade of
cell death mechanisms while unveiling an opportunity for exploring
mechanistic-based therapeutic interventions to preserve the integrity of the
neurovascular unit.