Differential effect of three-repeat and four-repeat tau on mitochondrial axonal transport.

Differential effect of three-repeat and four-repeat tau on mitochondrial axonal transport.
复制标题

DOI:
10.1111/j.1471-4159.2009.06316.x
复制
发表时间:
2009-10
影响因子:
4.7
通讯作者:
Hyman BT
Hyman BT
中科院分区:
医学2区
文献类型:
--
作者:
Stoothoff W;Jones PB;Spires-Jones TL;Joyner D;Chhabra E;Bercury K;Fan Z;Xie H;Bacskai B;Edd J;Irimia D;Hyman BT

文献摘要

参考文献

被引文献

相似文献

Tau 蛋白在人脑中以六种不同的剪接形式存在,并通过 3 或 4 个微管结合重复与微管相互作用。 3 个重复同工型与 4 个重复同工型的比例增加与遗传性额颞叶痴呆的神经变性有关。 Tau 过度表达会减少多个系统中的轴突运输,但尚未研究 3 重复亚型和 4 重复亚型的差异效应。我们检查了 tau 对线粒体运输的影响,发现 3 个重复和 4 个重复 tau 都会改变细胞体内正常的线粒体分布,并减少线粒体定位到轴突; 4 个重复 tau 比 3 个重复 tau 具有更大的效果。此外,我们观察到 3 个重复和 4 个重复 tau 会导致逆行和顺行运输动力学的不同变化,其中 3 个重复 tau 对轴突运输动力学的影响稍强。我们的结果表明,tau 诱导的轴突运输变化可能是神经退行性疾病的一个潜在主题,与 tau 与微管相互作用的异构体特异性变化相关。
Tau protein is present in six different splice forms in the human brain and interacts with microtubules via either 3 or 4 microtubule binding repeats. An increased ratio of 3 repeat to 4 repeat isoforms is associated with neurodegeneration in inherited forms of frontotemporal dementia. Tau overexpression diminishes axonal transport in several systems, but differential effects of 3 repeat and 4 repeat isoforms have not been studied. We examined the effects of tau on mitochondrial transport and found that both 3 repeat and 4 repeat tau change normal mitochondrial distribution within the cell body and reduce mitochondrial localization to axons; 4 repeat tau has a greater effect than 3 repeat tau. Further, we observed that the 3 repeat and 4 repeat tau cause different alterations in retrograde and anterograde transport dynamics with 3 repeat tau having a slightly stronger effect on axon transport dynamics. Our results indicate that tau-induced changes in axonal transport may be an underlying theme in neurodegenerative diseases associated with isoform specific changes in tau’s interaction with microtubules.
DOI: 10.1083/jcb.115.3.717
发表时间: 1991-11
期刊: The Journal of cell biology
影响因子: --
作者:
Butner KA;Kirschner MW
通讯作者: Kirschner MW
DOI: 10.1016/0896-6273(89)90210-9
发表时间: 1989-10-01
期刊: NEURON
影响因子: 16.2
作者:
GOEDERT, M;SPILLANTINI, MG;CROWTHER, RA
通讯作者: CROWTHER, RA
DOI: 10.1073/pnas.0808084105
发表时间: 2008-10-14
影响因子: 11.1
作者:
Ittner, Lars M.;Fath, Thomas;Goetz, Juergen
通讯作者: Goetz, Juergen
DOI: 10.1002/j.1460-2075.1990.tb07870.x
发表时间: 1990-12-01
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
GOEDERT, M;JAKES, R
通讯作者: JAKES, R
DOI: 10.1247/csf.21.283
发表时间: 1996-10-01
影响因子: 1.5
作者:
SatoHarada,R;Okabe,S;Hirokawa,N
通讯作者: Hirokawa,N