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Lu C, Kui X, Li X, Wang W, Sun X, Li N, Tong P, Dai J. Molecular Characterization and Function of the Nogo-66 Receptor ( NgR1) Gene in the Chinese Tree Shrew. J Integr Neurosci 2023; 22:22. [PMID: 36722229 DOI: 10.31083/j.jin2201022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/04/2022] [Accepted: 06/24/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Nogo-66 receptor (NgR1) is a glycosylphosphatidylinositol-linked cell surface receptor with high affinity for Nogo-66. The binding of Nogo-66 to NgR1 plays a key role in inhibiting neurite growth, limiting synaptic plasticity and mediating Mammalian Reovirus (MRV) infection. The Chinese tree shrew (Tupaia belangeri chinensis) is, a new and valuable experimental animal that is widely used in biomedical research. Although susceptible to MRV, little is known about tree shrew NgR1 and its role in MRV infection. METHODS In this study, we cloned NgR1 form the Chinese tree shrew by RACE technology and analyzed its characteristics, spatial structure and its tissue expression. We also examined the expression pattern of NgR1 in the response of tree shrew primary nerve cells (tNC) to MRV1/TS/2011 infection. RESULTS Tree shrew NgR1 was found to have a closer relationship to human NgR1 (90.34%) than to mouse NgR1. Similar to the protein structure of human NgR1, the tree shrew NgR1 has the same leucine-rich repeat (LRR) domain structure that is capped by C-terminal and N-terminal cysteine-rich modules. The tree shrew NgR1 mRNAs were predominantly detected in the central nervous system (CNS), and tree shrew NgR1 can mediate infection by MRV1/TS/2011. CONCLUSIONS Taken together, these results help to elucidate the function of NgR1 and provide a basis for using the tree shrew as an animal model for studies of the nervous system and infectious diseases.
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Affiliation(s)
- Caixia Lu
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Xiuying Kui
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Xiaofei Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Wenguang Wang
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Xiaomei Sun
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Na Li
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Pinfen Tong
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
| | - Jiejie Dai
- Center of Tree Shrew Germplasm Resources, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, 650118 Kunming, Yunnan, China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, 650118 Kunming, Yunnan, China
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