Formation of microtubule-based traps controls the sorting and concentration of vesicles to restricted sites of regenerating neurons after axotomy.
Formation of microtubule-based traps controls the sorting and concentration of vesicles to restricted sites of regenerating neurons after axotomy.
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基于微管的陷阱的形成控制轴切开术后囊泡的分选和浓度。
DOI:
10.1083/jcb.200607098
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发表时间:
2007-02-12
期刊:
影响因子:
--
通讯作者:
Spira ME
中科院分区:
文献类型:
--
作者:
Erez H;Malkinson G;Prager-Khoutorsky M;De Zeeuw CI;Hoogenraad CC;Spira ME
Transformation of a transected axonal tip into a growth cone (GC) is a critical step in the cascade leading to neuronal regeneration. Critical to the regrowth is the supply and concentration of vesicles at restricted sites along the cut axon. The mechanisms underlying these processes are largely unknown. Using online confocal imaging of transected, cultured Aplysia californica neurons, we report that axotomy leads to reorientation of the microtubule (MT) polarities and formation of two distinct MT-based vesicle traps at the cut axonal end. Approximately 100 μm proximal to the cut end, a selective trap for anterogradely transported vesicles is formed, which is the plus end trap. Distally, a minus end trap is formed that exclusively captures retrogradely transported vesicles. The concentration of anterogradely transported vesicles in the former trap optimizes the formation of a GC after axotomy.
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影响因子:
16.2
作者:
Ashery, U;Penner, R;Spira, ME
通讯作者:
Spira, ME
影响因子:
4.7
作者:
EKSTROM, P;KANJE, M
通讯作者:
KANJE, M
影响因子:
4
作者:
Cytrynbaum, EN;Rodionov, V;Mogilner, A
通讯作者:
Mogilner, A
影响因子:
4.2
作者:
Nguyen, MP;Bittner, GD;Fishman, HM
通讯作者:
Fishman, HM
DOI:
10.1152/nips.01429.2002
发表时间:
2003-06-01
期刊:
NEWS IN PHYSIOLOGICAL SCIENCES
影响因子:
--
作者:
Fishman, HM;Bittner, GD
通讯作者:
Bittner, GD