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XB-ART-58740
Cell Mol Life Sci 2021 Dec 01;7823:7379-7395. doi: 10.1007/s00018-021-03995-4.
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Axonal mRNA localization and translation: local events with broad roles.

Li L , Yu J , Ji SJ .


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Messenger RNA (mRNA) can be transported and targeted to different subcellular compartments and locally translated. Local translation is an evolutionally conserved mechanism that in mammals, provides an important tool to exquisitely regulate the subcellular proteome in different cell types, including neurons. Local translation in axons is involved in processes such as neuronal development, function, plasticity, and diseases. Here, we summarize the current progress on axonal mRNA transport and translation. We focus on the regulatory mechanisms governing how mRNAs are transported to axons and how they are locally translated in axons. We discuss the roles of axonally synthesized proteins, which either function locally in axons, or are retrogradely trafficked back to soma to achieve neuron-wide gene regulation. We also examine local translation in neurological diseases. Finally, we give a critical perspective on the remaining questions that could be answered to uncover the fundamental rules governing local translation, and discuss how this could lead to new therapeutic targets for neurological diseases.

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References [+] :
Akins, Axonal ribosomes and mRNAs associate with fragile X granules in adult rodent and human brains. 2017, Pubmed