Myosin II activity is required for structural plasticity at the axon initial segment.
Myosin II activity is required for structural plasticity at the axon initial segment.
复制标题
肌动蛋白II活性是轴突初始段处的结构可塑性所必需的。
DOI:
10.1111/ejn.13597
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发表时间:
2017-07
期刊:
影响因子:
--
通讯作者:
Grubb MS
中科院分区:
文献类型:
--
作者:
Evans MD;Tufo C;Dumitrescu AS;Grubb MS
In neurons, axons possess a molecularly defined and highly organised proximal region – the axon initial segment (AIS) – that is a key regulator of both electrical excitability and cellular polarity. Despite existing as a large, dense structure with specialised cytoskeletal architecture, the AIS is surprisingly plastic, with sustained alterations in neuronal activity bringing about significant alterations to its position, length or molecular composition. However, although the upstream activity‐dependent signalling pathways that lead to such plasticity have begun to be elucidated, the downstream mechanisms that produce structural changes at the AIS are completely unknown. Here, we use dissociated cultures of rat hippocampus to show that two forms of AIS plasticity in dentate granule cells – long‐term relocation, and more rapid shortening – are completely blocked by treatment with blebbistatin, a potent and selective myosin II ATPase inhibitor. These data establish a link between myosin II and AIS function, and suggest that myosin II's primary role at the structure may be to effect activity‐dependent morphological alterations.
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影响因子:
12.7
作者:
Hatch RJ;Wei Y;Xia D;Götz J
通讯作者:
Götz J
DOI:
10.1523/jneurosci.4064-11.2011
发表时间:
2011-11-09
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Grubb MS;Shu Y;Kuba H;Rasband MN;Wimmer VC;Bender KJ
通讯作者:
Bender KJ
DOI:
10.1523/jneurosci.1976-09.2009
发表时间:
2009-06-17
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Clayton EL;Anggono V;Smillie KJ;Chau N;Robinson PJ;Cousin MA
通讯作者:
Cousin MA
DOI:
10.1083/jcb.201506110
发表时间:
2015-08-03
期刊:
The Journal of cell biology
影响因子:
--
作者:
Ganguly A;Tang Y;Wang L;Ladt K;Loi J;Dargent B;Leterrier C;Roy S
通讯作者:
Roy S
影响因子:
64.8
作者:
通讯作者:
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