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Chapela D, Sousa S, Martins I, Cristóvão AM, Pinto P, Corte-Real S, Saúde L. Author Correction: A zebrafish drug screening platform boosts the discovery of novel therapeutics for spinal cord injury in mammals. Sci Rep 2020; 10:749. [PMID: 31937875 PMCID: PMC6960147 DOI: 10.1038/s41598-020-57443-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Wang X, Li B, Wang Z, Wang F, Liang J, Chen C, Zhao L, Zhou B, Guo X, Ren L, Yuan X, Chen X, Wang T. miR-30b Promotes spinal cord sensory function recovery via the Sema3A/NRP-1/PlexinA1/RhoA/ROCK Pathway. J Cell Mol Med 2020; 24:12285-12297. [PMID: 32977360 PMCID: PMC7686968 DOI: 10.1111/jcmm.15591] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 06/11/2020] [Accepted: 06/16/2020] [Indexed: 12/11/2022] Open
Abstract
Spinal cord injury (SCI) induces both motor and sensory dysfunctions. We wondered whether miR-30b could promote primary sensory neuron (PSN) axon growth in inhibitory microenvironment. The neurite growth was promoted by miR-30b agomir and inhibited by antagomir. MiR-30b targeted and degraded sema3A mRNA. MiR-30b regulated the formation of sema3A-NRP-1-PlexinA1 complex via targeting sema3A. The neurite length was induced by the miR-30b agomir, and the application of sema3A protein could reverse the effect of agomir. GTP-RhoA and ROCK expression were down-regulated by miR-30b. Neurite outgrowth that inhibited by sema3A and the miR-30b antagomir was increased by Y-27632. Agomir promoted neurite growth in NogoA inhibitory conditions, which indicated miR-30b could both enhance neuronal intrinsic regenerative ability and promote neurite growth against inhibitory microenvironment via Sema3A/NRP-1/PlexinA1/RhoA/ROCK axis. The agomir could also regulate Sema3A/NRP-1/PlexinA1/RhoA/ROCK axis in vivo and restore spinal cord sensory conductive function. In conclusion, miR-30b could be a novel target for sensation recovery after SCI.
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Affiliation(s)
- Xin Wang
- Chengde Medical University, Chengde, China
| | - Bo Li
- Department of Orthopedics, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zhijie Wang
- Department of Pediatric Internal Medicine, Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Fengyan Wang
- Department of Orthopedics, 981st Hospital of the Chinese People's Liberation Army Joint Logistics Support Force, Chengde, China
| | - Jing Liang
- Department of Nursing, 981st Hospital of the Chinese People's Liberation Army Joint Logistics Support Force, Chengde, China
| | - Chuanjie Chen
- Department of Orthopedics, Chengde Central Hospital, Chengde, China
| | - Lei Zhao
- Department of Education, Affiliated Hospital of Chengde Medical University, Chengde, China
| | - Bo Zhou
- Chengde Medical University, Chengde, China.,Department of Neurology, 981st Hospital of the Chinese People's Liberation Army Joint Logistics Support Force, Chengde, China
| | - Xiaoling Guo
- Department of Neurology, 981st Hospital of the Chinese People's Liberation Army Joint Logistics Support Force, Chengde, China
| | - Liqun Ren
- Laboratory of Spinal Cord Injury and Rehabilitation, Chengde Medical University, Chengde, China
| | - Xin Yuan
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Xueming Chen
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Tianyi Wang
- Department of Orthopedics, 981st Hospital of the Chinese People's Liberation Army Joint Logistics Support Force, Chengde, China
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Li B, Wang Z, Yu M, Wang X, Wang X, Chen C, Zhang Z, Zhang M, Sun C, Zhao C, Li Q, Wang W, Wang T, Zhang L, Ning G, Feng S. miR-22-3p enhances the intrinsic regenerative abilities of primary sensory neurons via the CBL/p-EGFR/p-STAT3/GAP43/p-GAP43 axis. J Cell Physiol 2019; 235:4605-4617. [PMID: 31663116 DOI: 10.1002/jcp.29338] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/30/2019] [Indexed: 02/06/2023]
Abstract
Spinal cord injury (SCI) is a devastating disease. Strategies that enhance the intrinsic regenerative ability are very important for the recovery of SCI to radically prevent the occurrence of sensory disorders. Epidermal growth factor (EGF) showed a limited effect on the growth of primary sensory neuron neurites due to the degradation of phosphorylated-epidermal growth factor receptor (p-EGFR) in a manner dependent on Casitas B-lineage lymphoma (CBL) (an E3 ubiquitin-protein ligase). MiR-22-3p predicted from four databases could target CBL to inhibit the expression of CBL, increase p-EGFR levels and neurites length via STAT3/GAP43 pathway rather than Erk1/2 axis. EGF, EGFR, and miR-22-3p were downregulated sharply after injury. In vivo miR-22-3p Agomir application could regulate CBL/p-EGFR/p-STAT3/GAP43/p-GAP43 axis, and restore spinal cord sensory conductive function. This study clarified the mechanism of the limited promotion effect of EGF on adult primary sensory neuron neurite and targeting miR-22-3p could be a novel strategy to treat sensory dysfunction after SCI.
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Affiliation(s)
- Bo Li
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Zhijie Wang
- Department of Pediatric Internal Medicine, Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei, China
| | - Mei Yu
- Department of Leukemia Center, Chinese Academy of Medical Sciences & Peking Union of Medical College, Institute of Hematology & Hospital of Blood Diseases, Tianjin, 30020, China
| | - Xu Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Xin Wang
- Department of Graduate School, Chengde Medical University, Chengde, Hebei, 067000, China
| | - Chuanjie Chen
- Department of Orthopedics, Chengde Central Hospital, Chengde, 067000, Hebei, China
| | - Zheng Zhang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army Joint Logistics Support Force, Chengde, 067000, Hebei, China
| | - Meiling Zhang
- Department of Graduate School, Chengde Medical University, Chengde, Hebei, 067000, China
| | - Chao Sun
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Chenxi Zhao
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Qiang Li
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, 030032, Shanxi, China
| | - Wei Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Tianyi Wang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army Joint Logistics Support Force, Chengde, 067000, Hebei, China
| | - Liang Zhang
- Department of Orthopedics, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Guangzhi Ning
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Department of Translational Medicine, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Shiqing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Department of Translational Medicine, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, 154 Anshan Road, Heping District, Tianjin, 300052, China
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4
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Wang T, Li B, Wang Z, Yuan X, Chen C, Zhang Y, Xia Z, Wang X, Yu M, Tao W, Zhang L, Wang X, Zhang Z, Guo X, Ning G, Feng S, Chen X. miR-155-5p Promotes Dorsal Root Ganglion Neuron Axonal Growth in an Inhibitory Microenvironment via the cAMP/PKA Pathway. Int J Biol Sci 2019; 15:1557-1570. [PMID: 31337984 PMCID: PMC6643145 DOI: 10.7150/ijbs.31904] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/29/2019] [Indexed: 12/13/2022] Open
Abstract
Sensory dysfunction post spinal cord injury causes patients great distress. Sciatic nerve conditioning injury (SNCI) has been shown to restore sensory function after spinal cord dorsal column injury (SDCL); however, the underlying mechanism of this recovery remains unclear. We performed a microarray assay to determine the associated miRNAs that might regulate the process of SNCI promoting SDCL repair. In total, 13 miRNAs were identified according to our inclusion criteria, and RT-qPCR was used to verify the microarray results. Among the 13 miRNAs, the miR-155-5p levels were decreased at 9 h, 3 d, 7 d, 14 d, 28 d, 2 m and 3 m timepoints in the SDCL group, while the SNCI group had a smaller decrease. Thus, miR-155-5p was chosen for further study after a literature review and an analysis with the TargetScan online tool. Specifically, miR-155-5p targets PKI-α, and the expression pattern of PKI-α was opposite that of miR-155-5p in both the SDCL and SNCI groups. Interestingly, miR-155-5p could promote dorsal root ganglion (DRG) neuron axon growth via the cAMP/PKA pathway and in a TNF-α, IL-1β or MAG inhibitory microenvironment in vitro. Furthermore, miR-155-5p could regulate the cAMP/PKA pathway and promote sensory conduction function recovery post dorsal column injury as detected by NF-200 immunohistochemistry, somatosensory-evoked potentials, BBB scale and tape removal test. Collectively, our results demonstrated that miR-155-5p participates in the molecular mechanism by which SNCI promotes the repair of SDCL and that upregulated miR-155-5p can repair SDCL by enhancing DRG neuron axon growth via the cAMP/PKA pathway. These findings suggest a novel treatment target for spinal cord injury.
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Affiliation(s)
- Tianyi Wang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army, Chengde 067000, Hebei Province, P.R. China
| | - Bo Li
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Zhijie Wang
- Department of Pediatric Internal Medicine, Affiliated Hospital of Chengde Medical University, Chengde 067000, Hebei Province, P.R. China
| | - Xin Yuan
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing 100000, P.R. China
| | - Chuanjie Chen
- Department of Orthopedics, Chengde Central Hospital, Chengde 067000, Hebei Province, P.R. China
| | - Yanjun Zhang
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing 100000, P.R. China
| | - Ziwei Xia
- Department of Orthopedics, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Xin Wang
- Chengde Medical University, Chengde 067000, Hebei Province, P.R. China
| | - Mei Yu
- Leukemia Center, Chinese Academy of Medical Sciences & Peking Union of Medical College, Institute of Hematology & Hospital of Blood Diseases, Tianjin 30020, P.R. China
| | - Wen Tao
- Chengde Medical University, Chengde 067000, Hebei Province, P.R. China
| | - Liang Zhang
- Department of Orthopedics, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Xu Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Zheng Zhang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army, Chengde 067000, Hebei Province, P.R. China
| | - Xiaoling Guo
- Department of Neurology, The 981st Hospital of the Chinese People's Liberation Army, Chengde 067000, Hebei Province, P.R. China
| | - Guangzhi Ning
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, P.R. China
| | - Shiqing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China.,Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, P.R. China
| | - Xueming Chen
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing 100000, P.R. China
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Wang T, Li B, Wang Z, Wang X, Xia Z, Ning G, Wang X, Zhang Y, Cui L, Yu M, Zhang L, Zhang Z, Yuan W, Guo X, Yuan X, Feng S, Chen X. Sorafenib promotes sensory conduction function recovery via miR-142-3p/AC9/cAMP axis post dorsal column injury. Neuropharmacology 2019; 148:347-357. [PMID: 30710569 DOI: 10.1016/j.neuropharm.2019.01.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 02/07/2023]
Abstract
Spinal cord injury results in sensation dysfunction. This study explored miR-142-3p, which acts a critical role in sciatic nerve conditioning injury (SNCI) promoting the repair of the dorsal column injury and validated its function on primary sensory neuron(DRG). miR-142-3p expression increased greatly in the spinal cord dorsal column lesion (SDCL) group and increased slightly in the SNCI group. Subsequently, the expression of adenylate cyclase 9 (AC9), the target gene of miR-142-3p, declined sharply in the SDCL group and declined limitedly in the SNCI group. The expression trend of cAMP was opposite to that of miR-142-3p. MiR-142-3p inhibitor improved the axon length, upregulated the expression of AC9, cAMP, p-CREB, IL-6, and GAP43, and downregulated the expression of GTP-RhoA. miR-142-3p inhibitor combined with AC9 siRNA showed shorter axon length, the expression of AC9, cAMP, p-CREB, IL-6, and GAP43 was decreased, and the expression of GTP-RhoA was increased. H89 and AG490, inhibitors of cAMP/PKA pathway and IL6/STAT3/GAP43 axis, respectively, declined the enhanced axonal growth by miR-142-3p inhibitor and altered the expression level of the corresponding proteins. Thus, a substitution therapy using Sorafenib that downregulates the miR-142-3p expression for SNCI was investigated. The results showed the effect of Sorafenib was similar to that of miR-142-3p inhibitor and SNCI on both axon growth in vitro and sensory conduction function recovery in vivo. In conclusion, miR-142-3p acts a pivotal role in SNCI promoting the repair of dorsal column injury. Sorafenib mimics the treatment effect of SNCI via downregulation of miR-142-3p, subsequently, promoting sensory conduction function recovery post dorsal column injury.
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Affiliation(s)
- Tianyi Wang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei Province, PR China
| | - Bo Li
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, PR China
| | - Zhijie Wang
- Department of Pediatric Internal Medicine, Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei Province, PR China
| | - Xin Wang
- Chengde Medical University, Chengde, 067000, Hebei Province, PR China
| | - Ziwei Xia
- Department of Orthopedics, The Second Hospital of Tianjin Medical University, Tianjin, 300211, PR China
| | - Guangzhi Ning
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, PR China
| | - Xu Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, PR China
| | - Yanjun Zhang
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100000, PR China
| | - Libin Cui
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100000, PR China
| | - Mei Yu
- Leukemia Center, Chinese Academy of Medical Sciences & Peking Union of Medical College, Institute of Hematology & Hospital of Blood Diseases, Tianjin, 30020, PR China
| | - Liang Zhang
- Department of Orthopedics, The Second Hospital of Tianjin Medical University, Tianjin, 300211, PR China
| | - Zheng Zhang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei Province, PR China
| | - Wenqi Yuan
- Department of Spinal Surgery, General Hospital of Ningxia Medical University, Yinchuan, 750000, Ningxia, PR China
| | - Xiaoling Guo
- Department of Neurology, The 981st Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei Province, PR China.
| | - Xin Yuan
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100000, PR China.
| | - Shiqing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, PR China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, 154 Anshan Road, Heping District, Tianjin, 300052, PR China.
| | - Xueming Chen
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100000, PR China.
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Wang T, Li B, Yuan X, Cui L, Wang Z, Zhang Y, Yu M, Xiu Y, Zhang Z, Li W, Wang F, Guo X, Zhao X, Chen X. MiR-20a Plays a Key Regulatory Role in the Repair of Spinal Cord Dorsal Column Lesion via PDZ-RhoGEF/RhoA/GAP43 Axis in Rat. Cell Mol Neurobiol 2018; 39:87-98. [PMID: 30426336 DOI: 10.1007/s10571-018-0635-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 11/08/2018] [Indexed: 12/24/2022]
Abstract
Spinal cord injury (SCI) causes sensory dysfunctions such as paresthesia, dysesthesia, and chronic neuropathic pain. MiR-20a facilitates the axonal outgrowth of the cortical neurons. However, the role of miR-20a in the axonal outgrowth of primary sensory neurons and spinal cord dorsal column lesion (SDCL) is yet unknown. Therefore, the role of miR-20a post-SDCL was investigated in rat. The NF-200 immunofluorescence staining was applied to observe whether axonal outgrowth of dorsal root ganglion (DRG) neurons could be altered by miR-20a or PDZ-RhoGEF modulation in vitro. The expression of miR-20a was quantized with RT-PCR. Western blotting analyzed the expression of PDZ-RhoGEF/RhoA/GAP43 axis after miR-20a or PDZ-RhoGEF was modulated. The spinal cord sensory conduction function was assessed by somatosensory-evoked potentials and tape removal test. The results demonstrated that the expression of miR-20a decreased in a time-dependent manner post-SDCL. The regulation of miR-20a modulated the axonal growth and the expression of PDZ-RhoGEF/RhoA/GAP43 axis in vitro. The in vivo regulation of miR-20a altered the expression of miR-20a-PDZ-RhoGEF/RhoA/GAP43 axis and promoted the recovery of ascending sensory function post-SDCL. The results indicated that miR-20a/PDZ-RhoGEF/RhoA/GAP43 axis is associated with the pathophysiological process of SDCL. Thus, targeting the miR-20a/PDZ-RhoGEF /RhoA/GAP43 axis served as a novel strategy in promoting the sensory function recovery post-SCI.
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Affiliation(s)
- Tianyi Wang
- Department of Orthopedics, The 266th Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei, People's Republic of China
| | - Bo Li
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, 300052, People's Republic of China
| | - Xin Yuan
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100020, People's Republic of China
| | - Libin Cui
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100020, People's Republic of China
| | - Zhijie Wang
- Department of Pediatric Internal Medicine, Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei, People's Republic of China
| | - Yanjun Zhang
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100020, People's Republic of China
| | - Mei Yu
- Leukemia Center, Peking Union of Medical College, Institute of Hematology & Hospital of Blood Diseases, Chinese Academy of Medical Sciences, Tianjin, 30020, People's Republic of China
| | - Yucai Xiu
- Department of Orthopedics, The 266th Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei, People's Republic of China
| | - Zheng Zhang
- Department of Orthopedics, The 266th Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei, People's Republic of China
| | - Wenhua Li
- Department of Orthopedics, The 266th Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei, People's Republic of China
| | - Fengyan Wang
- Department of Orthopedics, The 266th Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei, People's Republic of China
| | - Xiaoling Guo
- Department of Neurology, The 266th Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei, People's Republic of China.
| | - Xiangyang Zhao
- Department of General Surgery, The 266th Hospital of the Chinese People's Liberation Army, Chengde, 067000, Hebei, People's Republic of China.
| | - Xueming Chen
- Department of Spine Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, 100020, People's Republic of China.
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Wang Z, Yuan W, Li B, Chen X, Zhang Y, Chen C, Yu M, Xiu Y, Li W, Cao J, Wang X, Tao W, Guo X, Feng S, Wang T. PEITC promotes neurite growth in primary sensory neurons via the miR-17-5p/STAT3/GAP-43 axis. J Drug Target 2018; 27:82-93. [PMID: 29877111 DOI: 10.1080/1061186x.2018.1486405] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The present study explored a key miRNA that plays a vital role in sciatic nerve conditioning injury promoting repair of injured dorsal column, and validated its function. Microarray analysis revealed miR-17-5p expression decreased sharply at 3, 7 and 14 days in the sciatic nerve conditioning injury group compared with the simple dorsal column lesion group. After miR-17-5p inhibition in DRG neurons, GAP-43 expression was upregulated and neurite growth was increased. STAT3 together with p-STAT3 showed opposite trends with miR-17-5p. MiR-17-5p inhibition extended neurite and upregulated STAT3, p-STAT3 and GAP-43. To further determine a substitution therapy for sciatic nerve conditioning injury, beta-phenethyl isothiocyanate (PEITC), which downregulates miR-17-5p, was assessed. The results showed that treatment with 10 µM PEITC resulted in longest neurite length. Further experiments demonstrated PEITC induced neurite growth by inhibiting miR-17-5p and further upregulating STAT3, p-STAT3 and GAP-43. The somatosensory evoked potential test confirmed similar treatment effects for PEITC, Ad-miRNA-17-5p inhibitor, and sciatic nerve conditioning injury on the dorsal column lesion. In conclusion, the miR-17-5p/STAT3/GAP-43 axis is an indispensable component of sciatic nerve conditioning injury promoting repair of injured dorsal column. PEITC could promote repair of injured dorsal column via the miR-17-5p/STAT3/GAP-43 axis, and could mimic the treatment effect of sciatic nerve conditioning injury.
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Affiliation(s)
- Zhijie Wang
- a Department of Pediatric Internal Medicine , Affiliated Hospital of Chengde Medical University , Chengde , Hebei Province , P.R. China
| | - Wenqi Yuan
- b Department of Spinal Surgery , General Hospital of Ningxia Medical University , Yinchuan , Ningxia , P.R. China.,c Department of Orthopedics , Tianjin Medical University General Hospital , Tianjin , P.R. China
| | - Bo Li
- c Department of Orthopedics , Tianjin Medical University General Hospital , Tianjin , P.R. China
| | - Xueming Chen
- d Department of Spine Surgery , Beijing Luhe Hospital, Capital Medical University , Beijing , P.R. China
| | - Yanjun Zhang
- d Department of Spine Surgery , Beijing Luhe Hospital, Capital Medical University , Beijing , P.R. China
| | - Chuanjie Chen
- e Department of Orthopedics , Chengde Central Hospital , Chengde , Hebei Province , P.R. China
| | - Mei Yu
- f Leukemia Center, Chinese Academy of Medical Sciences & Peking Union of Medical College, Institute of Hematology & Hospital of Blood Diseases , Tianjin , P.R. China
| | - Yucai Xiu
- g Department of Orthopedics , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
| | - Wenhua Li
- g Department of Orthopedics , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
| | - Jiangang Cao
- h Department of Sports injury and Arthroscopy , Tianjin Hospital , Tianjin , P.R. China
| | - Xin Wang
- i Department of Neurology , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
| | - Wen Tao
- i Department of Neurology , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
| | - Xiaoling Guo
- i Department of Neurology , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
| | - Shiqing Feng
- c Department of Orthopedics , Tianjin Medical University General Hospital , Tianjin , P.R. China
| | - Tianyi Wang
- c Department of Orthopedics , Tianjin Medical University General Hospital , Tianjin , P.R. China.,g Department of Orthopedics , The 266th Hospital of the Chinese People's Liberation Army , Chengde , Hebei Province , P.R. China
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8
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Wang T, Yuan W, Liu Y, Zhang Y, Wang Z, Chen X, Feng S, Xiu Y, Li W. miR-142-3p is a Potential Therapeutic Target for Sensory Function Recovery of Spinal Cord Injury. Med Sci Monit 2015; 21:2553-6. [PMID: 26318123 PMCID: PMC4557393 DOI: 10.12659/msm.894098] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Spinal cord injury (SCI), which is a leading cause of disability in modern society, commonly results from trauma. It has been reported that application of sciatic nerve conditioning injury plays a positive role in repairing the injury of the ascending spinal sensory pathway in laboratory animals. Because of the complexity of SCI and related ethics challenges, sciatic nerve conditioning injury cannot be applied in clinical therapy. Accordingly, it is extremely important to study its mechanism and develop replacement therapy. Based on empirical study and clinical trials, this article suggests that miR-142-3p is the key therapeutic target for repairing sensory function, based on the following evidence. Firstly, studies have reported that endogenous cAMP is the upstream regulator of 3 signal pathways that are partially involved in the mechanisms of sciatic nerve conditioning injury, promoting neurite growth. The regulated miR-142-3p can induce cAMP elevation via adenylyl cyclase 9 (AC9), which is abundant in dorsal root ganglia (DRG). Secondly, compared with gene expression regulation in the injured spinal cord, inhibition of microRNA (miRNA) in DRG is less likely to cause trauma and infection. Thirdly, evidence of miRNAs as biomarkers and therapeutic targets in many diseases has been reported. In this article we suggest, for the first time, imitating sciatic nerve conditioning injury, thereby enhancing central regeneration of primary sensory neurons via interfering with the congenerous upstream regulator AC9 of the 3 above-mentioned signal pathways. We hope to provide a new clinical treatment strategy for the recovery of sensory function in SCI patients.
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Affiliation(s)
- Tianyi Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Wenqi Yuan
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Yong Liu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Yanjun Zhang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Zhijie Wang
- Department of Pediatric Internal Medicine, Affiliated Hospital of Chengde Medical College, Chengde, Hebei, China (mainland)
| | - Xueming Chen
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Shiqing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Yucai Xiu
- Department of Orthopedics, The 266th Hospital of the Chinese People's Liberation Army, Chengde, Hebei, China (mainland)
| | - Wenhua Li
- Department of Orthopedics, The 266th Hospital of the Chinese People's Liberation Army, Chengde, Hebei, China (mainland)
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Wang W, Wang F, Liu J, Zhao W, Zhao Q, He M, Qian BJ, Xu Y, Liu R, Liu SJ, Liu W, Liu J, Zhou XF, Wang TH. SNAP25 ameliorates sensory deficit in rats with spinal cord transection. Mol Neurobiol 2014; 50:290-304. [PMID: 24519330 DOI: 10.1007/s12035-014-8642-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 01/03/2014] [Indexed: 02/05/2023]
Abstract
Spinal cord injury causes sensory loss below the level of lesion. Synaptosomal-associated protein 25 (SNAP25) is a t-SNARE protein essential for exocytosis and neurotransmitter release, but its role in sensory functional recovery has not been determined. The aim of the present study is therefore to investigate whether SNAP25 can promote sensory recovery. By 2D proteomics, we found a downregulation of SNAP25 and then constructed two lentiviral vectors, Lv-exSNAP25 and Lv-shSNAP25, which allows efficient and stable RNAi-mediated silencing of endogenous SNAP25. Overexpression of SNAP25 enhanced neurite outgrowth in vitro and behavior response to thermal and mechanical stimuli in vivo, while the silencing of SNAP25 had the opposite effect. These results suggest that SNAP25 plays a crucial role in sensory functional recovery following spinal cord injury (SCI). Our study therefore provides a novel target for the management of SCI for sensory dysfunction.
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Affiliation(s)
- Wei Wang
- Department of Anesthesiology and Institute of Neurological Disease, Translation Neuroscience Center, The State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
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10
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Ferguson AR, Huie JR, Crown ED, Baumbauer KM, Hook MA, Garraway SM, Lee KH, Hoy KC, Grau JW. Maladaptive spinal plasticity opposes spinal learning and recovery in spinal cord injury. Front Physiol 2012; 3:399. [PMID: 23087647 PMCID: PMC3468083 DOI: 10.3389/fphys.2012.00399] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 09/20/2012] [Indexed: 01/23/2023] Open
Abstract
Synaptic plasticity within the spinal cord has great potential to facilitate recovery of function after spinal cord injury (SCI). Spinal plasticity can be induced in an activity-dependent manner even without input from the brain after complete SCI. A mechanistic basis for these effects is provided by research demonstrating that spinal synapses have many of the same plasticity mechanisms that are known to underlie learning and memory in the brain. In addition, the lumbar spinal cord can sustain several forms of learning and memory, including limb-position training. However, not all spinal plasticity promotes recovery of function. Central sensitization of nociceptive (pain) pathways in the spinal cord may emerge in response to various noxious inputs, demonstrating that plasticity within the spinal cord may contribute to maladaptive pain states. In this review we discuss interactions between adaptive and maladaptive forms of activity-dependent plasticity in the spinal cord below the level of SCI. The literature demonstrates that activity-dependent plasticity within the spinal cord must be carefully tuned to promote adaptive spinal training. Prior work from our group has shown that stimulation that is delivered in a limb position-dependent manner or on a fixed interval can induce adaptive plasticity that promotes future spinal cord learning and reduces nociceptive hyper-reactivity. On the other hand, stimulation that is delivered in an unsynchronized fashion, such as randomized electrical stimulation or peripheral skin injuries, can generate maladaptive spinal plasticity that undermines future spinal cord learning, reduces recovery of locomotor function, and promotes nociceptive hyper-reactivity after SCI. We review these basic phenomena, how these findings relate to the broader spinal plasticity literature, discuss the cellular and molecular mechanisms, and finally discuss implications of these and other findings for improved rehabilitative therapies after SCI.
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Affiliation(s)
- Adam R Ferguson
- Department of Neurological Surgery, Brain and Spinal Injury Center, University of California San Francisco San Francisco, CA, USA
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11
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Specific inhibition of the JNK pathway promotes locomotor recovery and neuroprotection after mouse spinal cord injury. Neurobiol Dis 2012; 46:710-21. [DOI: 10.1016/j.nbd.2012.03.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 01/31/2012] [Accepted: 03/01/2012] [Indexed: 12/23/2022] Open
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