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Ding D, Enriquez-Algeciras M, Valdivia AO, Torres J, Pole C, Thompson JW, Chou TH, Perez-Pinzon M, Porciatti V, Udin S, Nestler E, Bhattacharya SK. The Role of Deimination in Regenerative Reprogramming of Neurons. Mol Neurobiol 2019; 56:2618-2639. [PMID: 30051351 PMCID: PMC6348056 DOI: 10.1007/s12035-018-1262-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 07/17/2018] [Indexed: 10/28/2022]
Abstract
Neurons from the adult central nervous system (CNS) demonstrate limited mRNA transport and localized protein synthesis versus developing neurons, correlating with lower regenerative capacity. We found that deimination (posttranslational conversion of protein-bound arginine into citrulline) undergoes upregulation during early neuronal development while declining to a low basal level in adults. This modification is associated with neuronal arborization from amphibians to mammals. The mRNA-binding proteins (ANP32a, REF), deiminated in neurons, have been implicated in local protein synthesis. Overexpression of the deiminating cytosolic enzyme peptidyl arginine deiminase 2 in nervous systems results in increased neuronal transport and neurite outgrowth. We further demonstrate that enriching deiminated proteins rescues transport deficiencies both in primary neurons and mouse optic nerve even in the presence of pharmacological transport blockers. We conclude that deimination promotes neuronal outgrowth via enhanced transport and local protein synthesis and represents a new avenue for neuronal regeneration in the adult CNS.
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Affiliation(s)
- Di Ding
- Bascom Palmer Eye Institute, University of Miami, 1638 N.W. 10th Avenue, #706, Miami, FL, 33136, USA
- Department of Ophthalmology/Neuroscience Program, University of Miami, Miami, FL, 33136, USA
| | - Mabel Enriquez-Algeciras
- Bascom Palmer Eye Institute, University of Miami, 1638 N.W. 10th Avenue, #706, Miami, FL, 33136, USA
- Department of Ophthalmology/Neuroscience Program, University of Miami, Miami, FL, 33136, USA
| | - Anddre Osmar Valdivia
- Bascom Palmer Eye Institute, University of Miami, 1638 N.W. 10th Avenue, #706, Miami, FL, 33136, USA
- Department of Ophthalmology/Neuroscience Program, University of Miami, Miami, FL, 33136, USA
| | - Juan Torres
- Bascom Palmer Eye Institute, University of Miami, 1638 N.W. 10th Avenue, #706, Miami, FL, 33136, USA
- Department of Ophthalmology/Neuroscience Program, University of Miami, Miami, FL, 33136, USA
| | - Cameron Pole
- Department of Ophthalmology/Neuroscience Program, University of Miami, Miami, FL, 33136, USA
| | - John W Thompson
- Neurological Surgery, University of Miami, Miami, FL, 33136, USA
| | - Tsung-Han Chou
- Bascom Palmer Eye Institute, University of Miami, 1638 N.W. 10th Avenue, #706, Miami, FL, 33136, USA
- Department of Ophthalmology/Neuroscience Program, University of Miami, Miami, FL, 33136, USA
| | - Miguel Perez-Pinzon
- Department of Ophthalmology/Neuroscience Program, University of Miami, Miami, FL, 33136, USA
- Department of Neurology, University of Miami, Miami, FL, 33136, USA
| | - Vittorio Porciatti
- Bascom Palmer Eye Institute, University of Miami, 1638 N.W. 10th Avenue, #706, Miami, FL, 33136, USA
- Department of Ophthalmology/Neuroscience Program, University of Miami, Miami, FL, 33136, USA
| | - Susan Udin
- Department of Physiology and Biophysics, State University of New York, Buffalo, 553 Biomedical Res. Building, Buffalo, NY, 14214, USA
| | - Eric Nestler
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1065, New York, NY, 10029, USA
| | - Sanjoy K Bhattacharya
- Bascom Palmer Eye Institute, University of Miami, 1638 N.W. 10th Avenue, #706, Miami, FL, 33136, USA.
- Department of Ophthalmology/Neuroscience Program, University of Miami, Miami, FL, 33136, USA.
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