Tau-dependent microtubule disassembly initiated by prefibrillar beta-amyloid.
Tau-dependent microtubule disassembly initiated by prefibrillar beta-amyloid.
复制标题
依赖性β-淀粉样蛋白引发的tau依赖性微管拆卸。
DOI:
10.1083/jcb.200605187
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发表时间:
2006-11-20
期刊:
影响因子:
--
通讯作者:
Bloom GS
中科院分区:
文献类型:
--
作者:
King ME;Kan HM;Baas PW;Erisir A;Glabe CG;Bloom GS
Alzheimer's Disease (AD) is defined histopathologically by extracellular β-amyloid (Aβ) fibrils plus intraneuronal tau filaments. Studies of transgenic mice and cultured cells indicate that AD is caused by a pathological cascade in which Aβ lies upstream of tau, but the steps that connect Aβ to tau have remained undefined. We demonstrate that tau confers acute hypersensitivity of microtubules to prefibrillar, extracellular Aβ in nonneuronal cells that express transfected tau and in cultured neurons that express endogenous tau. Prefibrillar Aβ42 was active at submicromolar concentrations, several-fold below those required for equivalent effects of prefibrillar Aβ40, and microtubules were insensitive to fibrillar Aβ. The active region of tau was localized to an N-terminal domain that does not bind microtubules and is not part of the region of tau that assembles into filaments. These results suggest that a seminal cell biological event in AD pathogenesis is acute, tau-dependent loss of microtubule integrity caused by exposure of neurons to readily diffusible Aβ.
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影响因子:
64.8
作者:
Walsh, DM;Klyubin, I;Selkoe, DJ
通讯作者:
Selkoe, DJ
影响因子:
4.8
作者:
Fifre, A;Sponne, I;Pillot, T
通讯作者:
Pillot, T
影响因子:
4.8
作者:
Shen, SS;Tucker, WC;Steinhardt, RA
通讯作者:
Steinhardt, RA
DOI:
10.1073/pnas.0509386103
发表时间:
2006-02-07
影响因子:
11.1
作者:
Guo, JP;Arai, T;McGeer, PL
通讯作者:
McGeer, PL
影响因子:
4.8
作者:
Mateer, SC;McDaniel, AE;Bloom, GS
通讯作者:
Bloom, GS