1
|
Li E, Yan R, Qiao H, Sun J, Zou P, Chang J, Li S, Ma Q, Zhang R, Liao B. Combined transcriptomics and proteomics studies on the effect of electrical stimulation on spinal cord injury in rats. Heliyon 2024; 10:e23960. [PMID: 38226269 PMCID: PMC10788535 DOI: 10.1016/j.heliyon.2023.e23960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 11/20/2023] [Accepted: 12/19/2023] [Indexed: 01/17/2024] Open
Abstract
Electrical stimulation (ES) of the spinal cord is a promising therapy for functional rehabilitation after spinal cord injury (SCI). However, the specific mechanism of action is poorly understood. We designed and applied an implanted ES device in the SCI area in rats and determined the effect of ES on the treatment of motor dysfunction after SCI using behavioral scores. Additionally, we examined the molecular characteristics of the samples using proteomic and transcriptomic sequencing. The differential molecules between groups were identified using statistical analyses. Molecular, network, and pathway-based analyses were used to identify group-specific biological features. ES (0.5 mA, 0.1 ms, 50 Hz) had a positive effect on motor dysfunction and neuronal regeneration in rats after SCI. Six samples (three independent replicates in each group) were used for transcriptome sequencing; we obtained 1026 differential genes, comprising 274 upregulated genes and 752 downregulated genes. A total of 10 samples were obtained: four samples in the ES group and six samples in the SCI group; for the proteome sequencing, 48 differential proteins were identified, including 45 up-regulated and three down-regulated proteins. Combined transcriptomic and proteomic studies have shown that the main enrichment pathway is the hedgehog signaling pathway. Western blot results showed that the expression levels of Sonic hedgehog (SHH) (P < 0.001), Smoothened (SMO) (P = 0.0338), and GLI-1 (P < 0.01) proteins in the ES treatment group were significantly higher than those in the SCI group. The immunofluorescence results showed significantly increased expression of SHH (P = 0.0181), SMO (P = 0.021), and GLI-1 (P = 0.0126) in the ES group compared with that in the SCI group. In conclusion, ES after SCI had a positive effect on motor dysfunction and anti-inflammatory effects in rats. Moreover, transcriptomic and proteomic sequencing also provided unique perspectives on the complex relationships between ES on SCI, where the SHH signaling pathway plays a critical role. Our study provides a significant theoretical foundation for the clinical implementation of ES therapy in patients with SCI.
Collapse
Affiliation(s)
- Erliang Li
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Rongbao Yan
- Department of Orthopaedics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Huanhuan Qiao
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi'an, Shaanxi, China
| | - Jin Sun
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi'an, Shaanxi, China
| | - Peng Zou
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jiaqi Chang
- School of Automation Science and Electrical Engineering, Beihang University, 37th Xueyuan Road, Beijing, China
| | - Shuang Li
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi'an, Shaanxi, China
| | - Qiong Ma
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi'an, Shaanxi, China
| | - Rui Zhang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Bo Liao
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi'an, Shaanxi, China
| |
Collapse
|
2
|
Song Z, Gao Y, Zhao Y, Feng X, Zhao Z, Wang W. miR-129-5p Induces Cell Apoptosis and Inhibits Inflammation by Inflammatory Signaling to Alleviate Spinal Cord Injury (SCI). J BIOMATER TISS ENG 2023. [DOI: 10.1166/jbt.2023.3197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Spinal cord injury (SCI) is a spinal cord nerve dysfunction secondary to trauma. Until now, still no appropriate drug with unclear etiology. Therefore, it is to develop effective SCI treatment methods. Herein, we intended to detect the impact of miR-129-5p in SCI After establishment
of a mouse SCI model, the animals received intrathecal injection of agomir-miR-129-5p or normal saline. Then, the miR-129-5p’s effect was evaluated by assessing motor function, spinal cord tissue edema, apoptosis and inflammation of mice upon treatments and potential targeted pathways
of the miRNA were detected. Overexpressed miR-129-5p facilitated the wound healing with less spare tissue and water content. Additionally, overexpressed miR-129-5p suppressed the in vivo inflammation with decreased apoptotic rate of neurons. As SCI induced increased expression of HMGB1,
TLR4, and NF-κB in tissues, but the presence of miR-129-5p reversed the expressions. Collectively, this study elucidate miR-129-5p significantly improves inflammatory response and apoptosis, thereby improving the condition of SCI. These findings might provide a new theory for
the disorder, and promote the research progress on the disease.
Collapse
Affiliation(s)
- Zhengdong Song
- The First Clinical Medical School of Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Yuwei Gao
- Department of Emergency Critical Care Medicine, The First Hospital of Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Yuhao Zhao
- The First Clinical Medical School of Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Xiaofei Feng
- The First Clinical Medical School of Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Zhenrui Zhao
- The First Clinical Medical School of Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Wenji Wang
- The First Clinical Medical School of Lanzhou University, Lanzhou, Gansu, 730030, China
| |
Collapse
|
3
|
Li E, Yan R, Yan K, Zhang R, Zhang Q, Zou P, Wang H, Qiao H, Li S, Ma Q, Liao B. Single-cell RNA sequencing reveals the role of immune-related autophagy in spinal cord injury in rats. Front Immunol 2022; 13:987344. [PMID: 36211348 PMCID: PMC9535363 DOI: 10.3389/fimmu.2022.987344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 08/31/2022] [Indexed: 11/13/2022] Open
Abstract
Spinal cord injury refers to damage to the spinal cord due to trauma, disease, or degeneration; and the number of new cases is increasing yearly. Significant cellular changes are known to occur in the area of spinal cord injury. However, changes in cellular composition, trajectory of cell development, and intercellular communication in the injured area remain unclear. Here, we used single-cell RNA sequencing to evaluate almost all the cell types that constitute the site of spinal cord injury in rats. In addition to mapping the cells of the injured area, we screened the expression of immune autophagy-related factors in cells and identified signaling pathways by the measuring the expression of the receptor−ligand pairs to regulate specific cell interactions during autophagy after spinal cord injury. Our data set is a valuable resource that provides new insights into the pathobiology of spinal cord injury and other traumatic diseases of the central nervous system.
Collapse
Affiliation(s)
- Erliang Li
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Rongbao Yan
- Department of Orthopaedics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Kang Yan
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Rui Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Qian Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Peng Zou
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Huimei Wang
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Huan Qiao
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Shuang Li
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
| | - Qiong Ma
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
- *Correspondence: Bo Liao, ; Qiong Ma,
| | - Bo Liao
- Department of Orthopaedics, The Second Affiliated Hospital of Air Force Military Medical University, Xi’an, China
- *Correspondence: Bo Liao, ; Qiong Ma,
| |
Collapse
|