PUBLICATION
GPR56/ADGRG1 regulates development and maintenance of peripheral myelin
- Authors
- Ackerman, S.D., Luo, R., Poitelon, Y., Mogha, A., Harty, B.L., D'Rozario, M., Sanchez, N.E., Lakkaraju, A.K.K., Gamble, P., Li, J., Qu, J., MacEwan, M.R., Ray, W.Z., Aguzzi, A., Feltri, M.L., Piao, X., Monk, K.R.
- ID
- ZDB-PUB-180126-6
- Date
- 2018
- Source
- The Journal of experimental medicine 215(3): 941-961 (Journal)
- Registered Authors
- Mogha, Amit, Monk, Kelly
- Keywords
- none
- MeSH Terms
-
- Signal Transduction
- Mice, Inbred C57BL
- Mutation/genetics
- Protein Binding
- HEK293 Cells
- Receptors, G-Protein-Coupled/genetics
- Receptors, G-Protein-Coupled/metabolism*
- Receptors, G-Protein-Coupled/physiology
- Cytoskeleton/genetics
- Zebrafish
- Plectin/metabolism
- Sciatic Nerve/metabolism
- Zebrafish Proteins/genetics
- Zebrafish Proteins/physiology*
- GTP-Binding Protein alpha Subunits, G12-G13/metabolism
- Animals
- Myelin Sheath/metabolism*
- Myelin Sheath/ultrastructure
- Gene Expression Regulation
- Humans
- Schwann Cells/metabolism
- rhoA GTP-Binding Protein/metabolism
- PubMed
- 29367382 Full text @ J. Exp. Med.
Citation
Ackerman, S.D., Luo, R., Poitelon, Y., Mogha, A., Harty, B.L., D'Rozario, M., Sanchez, N.E., Lakkaraju, A.K.K., Gamble, P., Li, J., Qu, J., MacEwan, M.R., Ray, W.Z., Aguzzi, A., Feltri, M.L., Piao, X., Monk, K.R. (2018) GPR56/ADGRG1 regulates development and maintenance of peripheral myelin. The Journal of experimental medicine. 215(3):941-961.
Abstract
Myelin is a multilamellar sheath generated by specialized glia called Schwann cells (SCs) in the peripheral nervous system (PNS), which serves to protect and insulate axons for rapid neuronal signaling. In zebrafish and rodent models, we identify GPR56/ADGRG1 as a conserved regulator of PNS development and health. We demonstrate that, during SC development, GPR56-dependent RhoA signaling promotes timely radial sorting of axons. In the mature PNS, GPR56 is localized to distinct SC cytoplasmic domains, is required to establish proper myelin thickness, and facilitates organization of the myelin sheath. Furthermore, we define plectin-a scaffolding protein previously linked to SC domain organization, myelin maintenance, and a series of disorders termed "plectinopathies"-as a novel interacting partner of GPR56. Finally, we show that Gpr56 mutants develop progressive neuropathy-like symptoms, suggesting an underlying mechanism for peripheral defects in some human patients with GPR56 mutations. In sum, we define Gpr56 as a new regulator in the development and maintenance of peripheral myelin.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping