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|Title:||Protein trafficking mechanisms associated with neurite outgrowth and polarized sorting in neurons|
|Citation:||Tang, B.L. (2001). Protein trafficking mechanisms associated with neurite outgrowth and polarized sorting in neurons. Journal of Neurochemistry 79 (5) : 923-930. ScholarBank@NUS Repository. https://doi.org/10.1046/j.1471-4159.2001.00674.x|
|Abstract:||Neuronal differentiation in vitro and in vivo involves coordinated changes in the cellular cytoskeleton and protein trafficking processes. I review here recent progress in our understanding of the membrane trafficking aspects of neurite outgrowth of neurons in culture and selective microtubule-based polarized sorting in fully polarized neurons, focusing on the involvement of some key molecules. Early neurite outgrowth appears to involve the protein trafficking machineries that are responsible for constitutive trans-Golgi network (TGN) to plasma membrane exocytosis, utilizing transport carrier generation mechanisms, SNARE proteins, Rab proteins and tethering mechanisms that are also found in non-neuronal cells. This vectorial TGN-plasma membrane traffic is directed towards several neurites, but can be switch to concentrate on the growth of a single axon. In a mature neuron, polarized targeting to the specific axonal and dendritic domains appears to involve selective microtubule-based mechanisms, utilizing motor proteins capable of distinguishing microtubule tracks to different destinations. The apparent gaps in our knowledge of these related protein transport processes will be highlighted.|
|Source Title:||Journal of Neurochemistry|
|Appears in Collections:||Staff Publications|
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