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The study of neuronal signaling ex vivo requires the identification of the proteins that are represented within the neuronal axoplasm. Here, we describe a detailed protocol to isolate the axoplasm of peripheral and central axonal branches of sciatic dorsal root ganglia neurons in mice. The axoplasm is separated by 2D gel and digestion followed by proteomics analysis with MS/MS-LC. This protocol can be applied to dissect the axoplasmic protein expression signatures before and after a sciatic nerve or a spinal cord injury. For complete details on the use and execution of this protocol, please refer to Kong et al. (2020). Crown Copyright © 2022.


Guiping Kong, Luming Zhou, Anja Freiwald, Kirill Shkura, Simone Di Giovanni. Purification of mouse axoplasmic proteins from dorsal root ganglia nerves for proteomics analysis. STAR protocols. 2022 Mar 18;3(1):101166

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PMID: 35535163

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