Impaired regulation of synaptic actin cytoskeleton in Alzheimer's disease.
Impaired regulation of synaptic actin cytoskeleton in Alzheimer's disease.
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DOI:
10.1016/j.brainresrev.2011.01.003
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发表时间:
2011-06-24
影响因子:
--
通讯作者:
Vanleeuwen JE
中科院分区:
文献类型:
--
作者:
Penzes P;Vanleeuwen JE
Representing the most common cause of dementia, Alzheimer’s disease (AD) has dramatically impacted the neurological and economic health of our society. AD is a debilitating neurodegenerative disease that produces marked cognitive decline. Much evidence has accumulated over the past decade to suggest soluble oligomers of beta-amyloid (Aβ) have a critical role in mediating AD pathology early in the disease process by perturbing synaptic efficacy. Here we critically review recent research that implicates synapses as key sites of early pathogenesis in AD. Most excitatory synapses in the brain rely on dendritic spines as the sites for excitatory neurotransmission. The structure and function of dendritic spines are dynamically regulated by cellular pathways acting on the actin cytoskeleton. Numerous studies analyzing human postmortem tissue, animal models and cellular paradigms indicate that AD pathology has a deleterious effect on the pathways governing actin cytoskeleton stability. Based on the available evidence, we propose the idea that a contributing factor to synaptic pathology in early AD is an Aβ oligomer-initiated collapse of a “synaptic safety net” in spines, leading to dendritic spine degeneration and synaptic dysfunction. Spine stabilizing pathways may thus represent efficacious therapeutic targets for combating AD pathology.
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DOI:
10.1196/annals.1379.003
发表时间:
2007-01-01
期刊:
IMAGING AND THE AGING BRAIN
影响因子:
--
作者:
Grutzendler, Jaime;Helmin, Kathryn;Gan, Wen-Biao
通讯作者:
Gan, Wen-Biao
DOI:
10.1073/pnas.0600948103
发表时间:
2006-03-28
影响因子:
11.1
作者:
Jacobsen, JS;Wu, CC;Bloom, FE
通讯作者:
Bloom, FE
影响因子:
16.2
作者:
Ashe, Karen H.;Zahs, Kathleen R.
通讯作者:
Zahs, Kathleen R.
DOI:
10.1073/pnas.0904636106
发表时间:
2009-08-04
影响因子:
11.1
作者:
Cahill, Michael E.;Xie, Zhong;Penzes, Peter
通讯作者:
Penzes, Peter
影响因子:
11.2
作者:
DEKOSKY, ST;SCHEFF, SW
通讯作者:
SCHEFF, SW