Spastin interacts with collapsin response mediator protein 3 to regulate neurite growth and branching
| Autor: | Wutian Wu, Jian-Ping Li, Zhisheng Ji, Guowei Zhang, Hua Yang, Chao-Hua Fu, Jian-Xian Luo, Hongsheng Lin |
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| Rok vydání: | 2021 |
| Předmět: |
Neurite
Biology Spastin protein interactions collapsin response mediator protein 3 liquid chromatography-mass spectrometry microtubule neurite growth proteomics spastin spinal cord injury Protein–protein interaction Mediator Developmental Neuroscience Microtubule medicine RC346-429 Spinal cord injury Microtubule severing Spinal cord medicine.disease Cell biology medicine.anatomical_structure Neurology. Diseases of the nervous system Research Article |
| Zdroj: | Neural Regeneration Research Neural Regeneration Research, Vol 16, Iss 12, Pp 2549-2556 (2021) |
| ISSN: | 1673-5374 |
| Popis: | Cytoskeletal microtubule rearrangement and movement are crucial in the repair of spinal cord injury. Spastin plays an important role in the regulation of microtubule severing. Both spastin and collapsin response mediator proteins can regulate neurite growth and branching; however, whether spastin interacts with collapsin response mediator protein 3 (CRMP3) during this process remains unclear, as is the mechanism by which CRMP3 participates in the repair of spinal cord injury. In this study, we used a proteomics approach to identify key proteins associated with spinal cord injury repair. We then employed liquid chromatography-mass spectrometry to identify proteins that were able to interact with glutathione S-transferase-spastin. Then, co-immunoprecipitation and staining approaches were used to evaluate potential interactions between spastin and CRMP3. Finally, we co-transfected primary hippocampal neurons with CRMP3 and spastin to evaluate their role in neurite outgrowth. Mass spectrometry identified the role of CRMP3 in the spinal cord injury repair process. Liquid chromatography-mass spectrometry pulldown assays identified three CRMP3 peptides that were able to interact with spastin. CRMP3 and spastin were co-expressed in the spinal cord and were able to interact with one another in vitro and in vivo. Lastly, CRMP3 overexpression was able to enhance the ability of spastin to promote neurite growth and branching. Therefore, our results confirm that spastin and CRMP3 play roles in spinal cord injury repair by regulating neurite growth and branching. These proteins may therefore be novel targets for spinal cord injury repair. The Institutional Animal Care and Use Committee of Jinan University, China approved this study (approval No. IACUS-20181008-03) on October 8, 2018. |
| Databáze: | OpenAIRE |
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