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Xu X, Liu R, Li Y, Zhang C, Guo C, Zhu J, Dong J, Ouyang L, Momeni MR. Spinal Cord Injury: From MicroRNAs to Exosomal MicroRNAs. Mol Neurobiol 2024; 61:5974-5991. [PMID: 38261255 DOI: 10.1007/s12035-024-03954-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 01/12/2024] [Indexed: 01/24/2024]
Abstract
Spinal cord injury (SCI) is an unfortunate experience that may generate extensive sensory and motor disabilities due to the destruction and passing of nerve cells. MicroRNAs are small RNA molecules that do not code for proteins but instead serve to regulate protein synthesis by targeting messenger RNA's expression. After SCI, secondary damage like apoptosis, oxidative stress, inflammation, and autophagy occurs, and differentially expressed microRNAs show a function in these procedures. Almost all animal and plant cells release exosomes, which are sophisticated formations of lipid membranes. These exosomes have the capacity to deliver significant materials, such as proteins, RNAs and lipids, to cells in need, regulating their functions and serving as a way of communication. This new method offers a fresh approach to treating spinal cord injury. Obviously, the exosome has the benefit of conveying the transported material across performing regulatory activities and the blood-brain barrier. Among the exosome cargoes, microRNAs, which modulate their mRNA targets, show considerable promise in the pathogenic diagnosis, process, and therapy of SCI. Herein, we describe the roles of microRNAs in SCI. Furthermore, we emphasize the importance of exosomal microRNAs in this disease.
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Affiliation(s)
- Xiangyang Xu
- Spinal Surgery, Henan Province Hospital of Traditional Chinese Medicine, The Second Affiliated Hospital of Henan University of Traditional Chinese Medicine), Zhengzhou, Henan, 450003, China
| | - Ruyin Liu
- Spinal Surgery, Henan Province Hospital of Traditional Chinese Medicine, The Second Affiliated Hospital of Henan University of Traditional Chinese Medicine), Zhengzhou, Henan, 450003, China
| | - Yunpeng Li
- Spinal Surgery, Henan Province Hospital of Traditional Chinese Medicine, The Second Affiliated Hospital of Henan University of Traditional Chinese Medicine), Zhengzhou, Henan, 450003, China
| | - Cheng Zhang
- College of Traditional Chinese Medicine Orthopedics and Traumatology, Henan University of Traditional Chinese Medicine, Zhengzhou, Henan, 450003, China
| | - Chuanghao Guo
- College of Traditional Chinese Medicine Orthopedics and Traumatology, Henan University of Traditional Chinese Medicine, Zhengzhou, Henan, 450003, China
| | - Jiong Zhu
- College of Traditional Chinese Medicine Orthopedics and Traumatology, Henan University of Traditional Chinese Medicine, Zhengzhou, Henan, 450003, China
| | - Jiaan Dong
- College of Traditional Chinese Medicine Orthopedics and Traumatology, Henan University of Traditional Chinese Medicine, Zhengzhou, Henan, 450003, China
| | - Liyun Ouyang
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, 11700, Malaysia.
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Wang Q, Ge L, Guo J, Zhang H, Chen T, Lian F, Li L, Xu Y, Xu J, Chen N, Zhang Y, Ruan Z, Xiao J, Zhang H, Yang L. Acid Neutralization by Composite Lysine Nanoparticles for Spinal Cord Injury Recovery through Mitigating Mitochondrial Dysfunction. ACS Biomater Sci Eng 2024; 10:4480-4495. [PMID: 38885615 DOI: 10.1021/acsbiomaterials.4c00612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
After spinal cord injury (SCI), significant alterations in the tissue microenvironment lead to mitochondrial dysfunction, inducing apoptosis and inhibiting the remodeling of neural circuits, thereby impeding recovery. Although previous studies have demonstrated a marked decrease in pH at the injury site, creating an acidic microenvironment, the impact of improving this acidic microenvironment on SCI recovery has not been investigated. This study prepared a lysine@hollow mesoporous silica nanoparticle/gelatin methacrylate (GelMA) (L@H/G) composite hydrogel. The L@H/G composite hydrogel was demonstrated to release lysine and efficiently improve the acidic microenvironment slowly. Significantly, the composite hydrogel reduced cell apoptosis, promoted nerve regeneration, inhibited glial scar formation, and ultimately enhanced motor function recovery in mice with SCI. Mechanistically, the L@H/G hydrogel improved the mitochondrial tricarboxylic acid (TCA) cycle and fatty acid metabolism, restoring energy supply and facilitating mitochondrial function recovery. To the best of our knowledge, this is the first report confirming that improving the acidic microenvironment could promote SCI repair, providing a potential therapeutic strategy for SCI.
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Affiliation(s)
- Qiuchen Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo, Zhejiang 315302, China
| | - Lu Ge
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jiali Guo
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Haijuan Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Tianling Chen
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Feifei Lian
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Lei Li
- Science and Teaching Affairs Section, Ningbo No. 6 Hospital, Ningbo, Zhejiang 315040, China
| | - Yun Xu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jinyu Xu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Nuo Chen
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yu Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Zhanwei Ruan
- Department of Emergency, The Third Affiliated Hospital, Wenzhou Medical University, No. 108 Wansong Road, Ruian, Wenzhou, Zhejiang 325200, China
| | - Jian Xiao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo, Zhejiang 315302, China
| | - Hongyu Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo, Zhejiang 315302, China
- Central Laboratory, Wenzhou Medical University, Lishui People's Hospital, Lishui, Zhejiang 323000, China
| | - Liangliang Yang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo, Zhejiang 315302, China
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Wang W, Yao F, Xing H, Yang F, Yan L. Exosomal miR-17-92 Cluster from BMSCs Alleviates Apoptosis and Inflammation in Spinal Cord Injury. Biochem Genet 2024:10.1007/s10528-024-10876-5. [PMID: 38961001 DOI: 10.1007/s10528-024-10876-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 06/20/2024] [Indexed: 07/05/2024]
Abstract
Spinal cord injury (SCI) involves neuronal apoptosis and axonal disruption, leading to severe motor dysfunction. Studies indicate that exosomes transport microRNAs (miRNAs) and play a crucial role in intercellular communication. This study aimed to explore whether the bone marrow mesenchymal stem cell (BMSCs)-exosomal miR-17-92 cluster can protect against SCI and to explain the underlying mechanisms. In vivo and in vitro SCI models were established and treated with control exosomes (con-exo) or exosomes derived from BMSCs transfected with miR-17-92 cluster plasmid (miR-17-92-exo). Rat BMSCs were isolated and positive markers were identified by flow cytometry. BMSC-derived exosomes were extracted and verified using transmission electron microscopy (TEM), nanoparticle tracking analysis (NTA), and western blotting. The expression of the miR-17-92 cluster was validated by quantitative reverse transcription PCR (qRT-PCR). Spinal cord function, histopathological changes, apoptotic cells, and inflammatory cytokines release in spinal cord tissues were assessed using the Basso-Beattie-Bresnahan (BBB) score, hematoxylin and eosin (HE) staining, terminal deoxynucleotide transferase (TdT)-mediated dUTP nick-end labeling (TUNEL) staining, enzyme-linked immunosorbent assay (ELISA), and qRT-PCR. In PC12 cells, cell proliferation, apoptosis, apoptosis-related proteins cleaved-Caspase3 expression, and inflammatory factors secretion were analyzed using a cell counting kit-8 (CCK8) assay, flow cytometry, western blotting, and ELISA. Our data revealed that the exosomes were successfully isolated from rat BMSCs. The BMSC-exosomal miR-17-92 cluster improved neural functional recovery after SCI, as evidenced by an increased BBB score, improved pathological damage, reduced neuronal apoptosis, and decreased inflammatory factors release. Additionally, miR-17-92-exo treatment significantly inhibited lipopolysaccharide (LPS)-induced reduction in cell viability, increase in cell apoptosis, and upregulation of inflammatory factors in PC12 cells. The exosomal miR-17-92 cluster derived from BMSCs improved functional recovery and exhibited neuroprotective effects in SCI by alleviating apoptosis and inflammation.
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Affiliation(s)
- Wei Wang
- Department of Orthopaedics, Wuhan Fourth Hospital, No. 473 Hanzheng Street, Qiaokou District, Wuhan, 430033, China
| | - Fei Yao
- Wuhan Sports University, Wuhan, 430079, China
| | - Haiyuan Xing
- Department of Orthopaedics, Wuhan Fourth Hospital, No. 473 Hanzheng Street, Qiaokou District, Wuhan, 430033, China
| | - Fan Yang
- Department of Orthopaedics, Wuhan Fourth Hospital, No. 473 Hanzheng Street, Qiaokou District, Wuhan, 430033, China
| | - Li Yan
- Department of Orthopaedics, Wuhan Fourth Hospital, No. 473 Hanzheng Street, Qiaokou District, Wuhan, 430033, China.
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Lin K, Zhang Y, Shen Y, Xu Y, Huang M, Liu X. Hydrogen Sulfide can Scavenge Free Radicals to Improve Spinal Cord Injury by Inhibiting the p38MAPK/mTOR/NF-κB Signaling Pathway. Neuromolecular Med 2024; 26:26. [PMID: 38907170 DOI: 10.1007/s12017-024-08794-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Accepted: 05/31/2024] [Indexed: 06/23/2024]
Abstract
Spinal cord injury (SCI) causes irreversible cell loss and neurological dysfunctions. Presently, there is no an effective clinical treatment for SCI. It can be the only intervention measure by relieving the symptoms of patients such as pain and fever. Free radical-induced damage is one of the validated mechanisms in the complex secondary injury following primary SCI. Hydrogen sulfide (H2S) as an antioxidant can effectively scavenge free radicals, protect neurons, and improve SCI by inhibiting the p38MAPK/mTOR/NF-κB signaling pathway. In this report, we analyze the pathological mechanism of SCI, the role of free radical-mediated the p38MAPK/mTOR/NF-κB signaling pathway in SCI, and the role of H2S in scavenging free radicals and improving SCI.
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Affiliation(s)
- Kexin Lin
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Yong Zhang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Yanyang Shen
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Yiqin Xu
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Min Huang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Xuehong Liu
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China.
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Rong Y, Wang J, Hu T, Shi Z, Lang C, Liu W, Cai W, Sun Y, Zhang F, Zhang W. Ginsenoside Rg1 Regulates Immune Microenvironment and Neurological Recovery After Spinal Cord Injury Through MYCBP2 Delivery via Neuronal Cell-Derived Extracellular Vesicles. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2402114. [PMID: 38896802 DOI: 10.1002/advs.202402114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/31/2024] [Indexed: 06/21/2024]
Abstract
Spinal cord injury (SCI) is a severe neurological condition that frequently leads to significant sensory, motor, and autonomic dysfunction. This study sought to delineate the potential mechanistic underpinnings of extracellular vesicles (EVs) derived from ginsenoside Rg1-pretreated neuronal cells (Rg1-EVs) in ameliorating SCI. These results demonstrated that treatment with Rg1-EVs substantially improved motor function in spinal cord-injured mice. Rg1-EVs enhance microglial polarization toward the M2 phenotype and repressed oxidative stress, thereby altering immune responses and decreasing inflammatory cytokine secretion. Moreover, Rg1-EVs substantially diminish reactive oxygen species accumulation and enhanced neural tissue repair by regulating mitochondrial function. Proteomic profiling highlighted a significant enrichment of MYCBP2 in Rg1-EVs, and functional assays confirmed that MYCBP2 knockdown counteracted the beneficial effects of Rg1-EVs in vitro and in vivo. Mechanistically, MYCBP2 is implicated in the ubiquitination and degradation of S100A9, thereby promoting microglial M2-phenotype polarization and reducing oxidative stress. Overall, these findings substantiated the pivotal role of Rg1-EVs in neuronal protection and functional recovery following SCI through MYCBP2-mediated ubiquitination of S100A9. This research offers novel mechanistic insights into therapeutic strategies against SCI and supports the clinical potential of Rg1-EVs.
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Affiliation(s)
- Yuluo Rong
- Department of orthopaedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
- National Center for Translational Medicine (Shanghai) SHU Branch, Shanghai University, Shanghai, 200444, China
| | - Jiaxing Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Tao Hu
- Department of orthopaedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Zhongming Shi
- Department of orthopaedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Chuandong Lang
- Department of orthopaedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Wei Liu
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Weihua Cai
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Yongjin Sun
- Department of orthopaedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Feng Zhang
- Department of orthopaedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Wenzhi Zhang
- Department of orthopaedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
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Wu H, Wang Q, Liao Y, Wang S. MSC-derived exosomes deliver ZBTB4 to mediate transcriptional repression of ITIH3 in astrocytes in spinal cord injury. Brain Res Bull 2024; 212:110954. [PMID: 38641154 DOI: 10.1016/j.brainresbull.2024.110954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/30/2023] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
BACKGROUND BMSC-secreted exosomes (BMSC-Exos) have shown potential for promoting behavioral recovery following spinal cord injury (SCI). However, its role in blocking astrocyte activation remains unclear. Thus, this study aimed to determine whether BMSC-Exos impair the function of astrocytes following SCI in mice and to seek the mechanism. METHODS BMSC-Exos were collected by ultracentrifugation and identified. The SCI mice were developed by laminectomy combined with spinal cord shock, followed by BMSC-Exos or nerve growth factor (positive control) treatment. HE staining, Nissl staining, and TUNEL were conducted to analyze the pathological structural damage and neuronal damage in the mouse spinal cord. Bioinformatics was used to screen altered molecules under the BMSC-Exos treatment. Effects of BMSC-Exos and changes in ZBTB4 and ITIH3 expression on neuronal damage induced by activated astrocytes in the co-culture system were analyzed by CCK-8 and flow cytometry. RESULTS Nerve growth factor and BMSC-Exos promoted motor function recovery, alleviated nerve injury, and reduced apoptosis in mice with SCI. ZBTB4 was enriched in BMSC-Exos and lowly expressed in SCI. Downregulation of ZBTB4 diminished the therapeutic effects of BMSC-Exos against SCI. ITIH3 was a downstream target of ZBTB4. Neurotoxic activation of astrocytes induced neuronal injury, which was alleviated by BMSC-Exos. However, ZBTB4 knockdown overturned the effects of BMSC-Exos in vitro and combined ITIH3 knockdown alleviated the accentuating effects of ZBTB4 knockdown on neuronal injury. CONCLUSION BMSC-Exos protected against astrocyte-induced neuronal injury by delivering ZBTB4 to repress ITIH3, ultimately improving motor function in mice with SCI.
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Affiliation(s)
- Hongzi Wu
- Orthopaedics Center, Karamay Central Hospital,Karamay, Xinjiang Uygur Autonomous Region 834000, PR China
| | - Qiang Wang
- Department of Orthopaedics, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, PR China
| | - Yi Liao
- Orthopaedics Center, Karamay Central Hospital,Karamay, Xinjiang Uygur Autonomous Region 834000, PR China
| | - Shaobo Wang
- Orthopaedics Center, Karamay Central Hospital,Karamay, Xinjiang Uygur Autonomous Region 834000, PR China.
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Wang D, Wu Y, Liu Y, Ji Q, Luo Y, Yan J. Dysregulated MiR-223-5p Modulates Inflammation and Oxidative Stress in Traumatic Spinal Cord Injury. Immunol Invest 2024:1-15. [PMID: 38814140 DOI: 10.1080/08820139.2024.2359531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
AIM This study aimed to evaluate the miR-223-5p expression in patients with spinal cord injury (SCI) and to determine its role in the pathogenesis of SCI. METHODS The serum miR-223-5p levels were analyzed using quantitative real-time polymerase chain reaction. The diagnostic accuracy of miR-223-5p was evaluated using the receiving operating characteristic curves. LPS-induced PC12 cells were established as an in vitro inflammatory cell model. Cell apoptosis, inflammation and oxidative stress were examined. The SCI rat model was constructed to evaluate the effects of miR-223-5p on inflammatory response and motor function in rats. RESULTS MiR-223-5p expression was upregulated in SCI patients. MiR-223-5p expression in the complete SCI group was significantly higher than that in incomplete SCI group. ROC analysis showed that miR-223-5p can distinguish SCI patients from healthy volunteers. In vitro experiments demonstrated that LPS upregulated apoptosis and inflammation in PC12 cells. Treatment with miR-223-5p inhibitor alleviated the changes in LPS-induced PC12 cells . Inhibition of miR-223-5p can alleviate the activation of inflammatory response and the effects of SCI on the motor function in rats. CONCLUSIONS MiR-223-5p is a potential diagnostic marker for SCI, and it can promote the SCI progression by regulating nerve cell survival, inflammation, and oxidative stress.
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Affiliation(s)
- Dawei Wang
- Department of Orthopedics, Zhangjiakou First Hospital, Zhangjiakou, Hebei, China
| | - Yingshuang Wu
- Department of Paediatrics, Zhangjiakou First Hospital, Zhangjiakou, Hebei, China
| | - Yongxiang Liu
- Department of Orthopedics, Yantaishan Hospital, Yantai, Shandong, China
| | - Qinghui Ji
- Department of Orthopedics, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Yi Luo
- Department of Orthopedics, Zhangjiakou First Hospital, Zhangjiakou, Hebei, China
| | - Jinglong Yan
- Department of Orthopedics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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Sun Z, Ji Z, Meng H, He W, Li B, Pan X, Zhou Y, Yu G. Lactate facilitated mitochondrial fission-derived ROS to promote pulmonary fibrosis via ERK/DRP-1 signaling. J Transl Med 2024; 22:479. [PMID: 38773615 PMCID: PMC11106888 DOI: 10.1186/s12967-024-05289-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 05/10/2024] [Indexed: 05/24/2024] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive, fibrotic interstitial lung diseases, which mainly existed in middle-aged and elderly people. The accumulation of reactive oxygen species (ROS) is a common characteristic of IPF. Previous research also shown that lactate levels can be abnormally elevated in IPF patients. Emerging evidence suggested a relationship between lactate and ROS in IPF which needs further elucidation. In this article, we utilized a mouse model of BLM-induced pulmonary fibrosis to detect alterations in ROS levels and other indicators associated with fibrosis. Lactate could induce mitochondrial fragmentation by modulating expression and activity of DRP1 and ERK. Moreover, Increased ROS promoted P65 translocation into nucleus, leading to expression of lung fibrotic markers. Finally, Ulixertinib, Mdivi-1 and Mito-TEMPO, which were inhibitor activity of ERK, DRP1 and mtROS, respectively, could effectively prevented mitochondrial damage and production of ROS and eventually alleviate pulmonary fibrosis. Taken together, these findings suggested that lactate could promote lung fibrosis by increasing mitochondrial fission-derived ROS via ERK/DRP1 signaling, which may provide novel therapeutic solutions for IPF.
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Affiliation(s)
- Zhiheng Sun
- College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, China.
- State Key Laboratory of Cell Differentiation and Regulation, Henan, China.
| | - Zhihua Ji
- College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, China
- State Key Laboratory of Cell Differentiation and Regulation, Henan, China
| | - Huiwen Meng
- College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, China
- State Key Laboratory of Cell Differentiation and Regulation, Henan, China
| | - Wanyu He
- College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, China
- State Key Laboratory of Cell Differentiation and Regulation, Henan, China
| | - Bin Li
- College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, China
- State Key Laboratory of Cell Differentiation and Regulation, Henan, China
| | - Xiaoyue Pan
- College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, China
- State Key Laboratory of Cell Differentiation and Regulation, Henan, China
| | - Yanlin Zhou
- College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, China
- State Key Laboratory of Cell Differentiation and Regulation, Henan, China
| | - Guoying Yu
- College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, China.
- State Key Laboratory of Cell Differentiation and Regulation, Henan, China.
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Sintakova K, Romanyuk N. The role of small extracellular vesicles and microRNA as their cargo in the spinal cord injury pathophysiology and therapy. Front Neurosci 2024; 18:1400413. [PMID: 38774785 PMCID: PMC11106386 DOI: 10.3389/fnins.2024.1400413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 04/16/2024] [Indexed: 05/24/2024] Open
Abstract
Spinal cord injury (SCI) is a devastating condition with a complex pathology that affects a significant portion of the population and causes long-term consequences. After primary injury, an inflammatory cascade of secondary injury occurs, followed by neuronal cell death and glial scar formation. Together with the limited regenerative capacity of the central nervous system, these are the main reasons for the poor prognosis after SCI. Despite recent advances, there is still no effective treatment. Promising therapeutic approaches include stem cells transplantation, which has demonstrated neuroprotective and immunomodulatory effects in SCI. This positive effect is thought to be mediated by small extracellular vesicles (sEVs); membrane-bound nanovesicles involved in intercellular communication through transport of functional proteins and RNA molecules. In this review, we summarize the current knowledge about sEVs and microRNA as their cargo as one of the most promising therapeutic approaches for the treatment of SCI. We provide a comprehensive overview of their role in SCI pathophysiology, neuroprotective potential and therapeutic effect.
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Affiliation(s)
- Kristyna Sintakova
- Department of Neuroregeneration, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
- Department of Neuroscience, 2nd Faculty of Medicine, Charles University, Prague, Czechia
| | - Nataliya Romanyuk
- Department of Neuroregeneration, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
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Zhang Y, Cong R, Lv T, Liu K, Chang X, Li Y, Han X, Zhu Y. Islet-resident macrophage-derived miR-155 promotes β cell decompensation via targeting PDX1. iScience 2024; 27:109540. [PMID: 38577099 PMCID: PMC10993184 DOI: 10.1016/j.isci.2024.109540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/18/2024] [Accepted: 03/18/2024] [Indexed: 04/06/2024] Open
Abstract
Chronic inflammation is critical for the initiation and progression of type 2 diabetes mellitus via causing both insulin resistance and pancreatic β cell dysfunction. miR-155, highly expressed in macrophages, is a master regulator of chronic inflammation. Here we show that blocking a macrophage-derived exosomal miR-155 (MDE-miR-155) mitigates the insulin resistances and glucose intolerances in high-fat-diet (HFD) feeding and type-2 diabetic db/db mice. Lentivirus-based miR-155 sponge decreases the level of miR-155 in the pancreas and improves glucose-stimulated insulin secretion (GSIS) ability of β cells, thus leading to improvements of insulin sensitivities in the liver and adipose tissues. Mechanistically, miR-155 increases its expression in HFD and db/db islets and is released as exosomes by islet-resident macrophages under metabolic stressed conditions. MDE-miR-155 enters β cells and causes defects in GSIS function and insulin biosynthesis via the miR-155-PDX1 axis. Our findings offer a treatment strategy for inflammation-associated diabetes via targeting miR-155.
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Affiliation(s)
- Yan Zhang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing medical University, Nanjing, Jiangsu 211166, China
| | - Rong Cong
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing medical University, Nanjing, Jiangsu 211166, China
| | - Tingting Lv
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing medical University, Nanjing, Jiangsu 211166, China
| | - Kerong Liu
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing medical University, Nanjing, Jiangsu 211166, China
| | - Xiaoai Chang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing medical University, Nanjing, Jiangsu 211166, China
| | - Yating Li
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing medical University, Nanjing, Jiangsu 211166, China
| | - Xiao Han
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing medical University, Nanjing, Jiangsu 211166, China
| | - Yunxia Zhu
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing medical University, Nanjing, Jiangsu 211166, China
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11
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Liu S, Liu H, Gong C, Li G, Li Q, Pan Z, He X, Jiang Z, Li H, Zhang C. MiR-10b-5p Regulates Neuronal Autophagy and Apoptosis Induced by Spinal Cord Injury Through UBR7. Neuroscience 2024; 543:13-27. [PMID: 38382692 DOI: 10.1016/j.neuroscience.2024.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 02/07/2024] [Accepted: 02/15/2024] [Indexed: 02/23/2024]
Abstract
This study aimed to explore the effects of miR-10b-5p on autophagy and apoptosis in neuronal cells after spinal cord injury (SCI) and the molecular mechanism. Bioinformatics was used to analyze the differentially expressed miRNAs. The expression of related genes and proteins were detected by real-time fluorescence quantitative polymerase chain reaction (RT-qPCR) and Western blot, respectively. Cell proliferation was detected by 5-ethynyl-2'-deoxyuridine (EdU), and apoptosis was detected by flow cytometry or terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling assay (TUNEL). Coimmunoprecipitation confirmed the interaction between UBR7 and Wnt1 or Beclin1. Autophagy was detected by the dansylcadaverine (MDC). The Basso Beattie Bresnahan (BBB) score was used to evaluate motor function, and hematoxylin-eosin (H&E) and Nissl staining were used to detect spinal cord tissue repair and neuronal changes. The result shows that the expression of miR-10b-5p was downregulated in the SCI models, and transfection of a miR-10b-5p mimic inhibited neuronal cell apoptosis. MiR-10b-5p negatively regulated the expression of UBR7, and the inhibitory effect of the miR-10b-5p mimic on neuronal cell apoptosis was reversed by overexpressing UBR7. In addition, UBR7 can regulate apoptosis by affecting the Wnt/β-catenin pathway by promoting Wnt1 ubiquitination. Treatment with the miR-10b-5p mimic effectively improved motor function, inhibited neuronal cell apoptosis, and promoted spinal cord tissue repair in SCI rats. Overall, miR-10b-5p can alleviate SCI by downregulating UBR7 expression, inhibiting Wnt/β-catenin signaling pathway ubiquitination to reduce neuronal apoptosis, or inhibiting Beclin 1 ubiquitination to promote autophagy.
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Affiliation(s)
- Shuangmei Liu
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing 655000, China
| | - Huali Liu
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing 655000, China
| | - Chunyan Gong
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing 655000, China
| | - Guiliang Li
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing 655000, China
| | - Qiaofen Li
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing 655000, China
| | - Zhipeng Pan
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing 655000, China
| | - Xiaona He
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing 655000, China
| | - Zhilv Jiang
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing 655000, China
| | - Heng Li
- Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing 655000, China
| | - Chunjun Zhang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China.
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12
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Xu X, Zhang CJ, Talifu Z, Liu WB, Li ZH, Wang XX, Du HY, Ke H, Yang DG, Gao F, Du LJ, Yu Y, Jing YL, Li JJ. The Effect of Glycine and N-Acetylcysteine on Oxidative Stress in the Spinal Cord and Skeletal Muscle After Spinal Cord Injury. Inflammation 2024; 47:557-571. [PMID: 37975960 DOI: 10.1007/s10753-023-01929-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/24/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
Oxidative stress is a frequently occurring pathophysiological feature of spinal cord injury (SCI) and can result in secondary injury to the spinal cord and skeletal muscle atrophy. Studies have reported that glycine and N-acetylcysteine (GlyNAC) have anti-aging and anti-oxidative stress properties; however, to date, no study has assessed the effect of GlyNAC in the treatment of SCI. In the present work, we established a rat model of SCI and then administered GlyNAC to the animals by gavage at a dose of 200 mg/kg for four consecutive weeks. The BBB scores of the rats were significantly elevated from the first to the eighth week after GlyNAC intervention, suggesting that GlyNAC promoted the recovery of motor function; it also promoted the significant recovery of body weight of the rats. Meanwhile, the 4-week heat pain results also suggested that GlyNAC intervention could promote the recovery of sensory function in rats to some extent. Additionally, after 4 weeks, the levels of glutathione and superoxide dismutase in spinal cord tissues were significantly elevated, whereas that of malondialdehyde was significantly decreased in GlyNAC-treated animals. The gastrocnemius wet weight ratio and total antioxidant capacity were also significantly increased. After 8 weeks, the malondialdehyde level had decreased significantly in spinal cord tissue, while reactive oxygen species accumulation in skeletal muscle had decreased. These findings suggested that GlyNAC can protect spinal cord tissue, delay skeletal muscle atrophy, and promote functional recovery in rats after SCI.
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Affiliation(s)
- Xin Xu
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Chun-Jia Zhang
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Zuliyaer Talifu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100730, China
| | - Wu-Bo Liu
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250100, Shandong Province, China
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, 250100, Shandong Province, China
| | - Ze-Hui Li
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Xiao-Xin Wang
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250100, Shandong Province, China
| | - Hua-Yong Du
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Han Ke
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250100, Shandong Province, China
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, 250100, Shandong Province, China
| | - De-Gang Yang
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Feng Gao
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Liang-Jie Du
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Yan Yu
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Ying-Li Jing
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Jian-Jun Li
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China.
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China.
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China.
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China.
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China.
- Cheeloo College of Medicine, Shandong University, Jinan, 250100, Shandong Province, China.
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266000, Shandong Province, China.
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13
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Gao Y, Lu J, Wang Z, Sun N, Wu B, Han X, Liu Y, Yu R, Xu Y, Han X, Miao J. L-arginine attenuates Streptococcus uberis-induced inflammation by decreasing miR155 level. Int Immunopharmacol 2024; 130:111638. [PMID: 38373387 DOI: 10.1016/j.intimp.2024.111638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/21/2024]
Abstract
L-arginine, as an essential substance of the immune system, plays a vital role in innate immunity. MiR155, a multi-functional microRNA, has gained importance as a regulator of homeostasis in immune cells. However, the immunoregulatory mechanism between L-arginine and miR155 in bacterial infections is unknown. Here, we investigated the potential role of miR155 in inflammation and the molecular regulatory mechanisms of L-arginine in Streptococcus uberis (S. uberis) infections. And we observed that miR155 was up-regulated after infection, accompanying the depletion of L-arginine, leading to metabolic disorders of amino acids and severe tissue damage. Mechanically, the upregulated miR155 mediated by the p65 protein played a pro-inflammatory role by suppressing the suppressor of cytokine signaling 6 (SOCS6)-mediated p65 ubiquitination and degradation. This culminated in a violently inflammatory response and tissue damage. Interestingly, a significant anti-inflammatory effect was revealed in L-arginine supplementation by reducing miR155 production via inhibiting p65. This work firstly uncovers the pro-inflammatory role of miR155 and an anti-inflammatory mechanism of L-arginine in S.uberis infection with a mouse mastitis model. Collectively, we provide new insights and strategies for the prevention and control of this important pathogen, which is of great significance for ensuring human food health and safety.
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Affiliation(s)
- Yabing Gao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Jinye Lu
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Zhenglei Wang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Naiyan Sun
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Binfeng Wu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Xinru Han
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Yuzhen Liu
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Rui Yu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Yuanyuan Xu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiangan Han
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Jinfeng Miao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
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14
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Wang J, Ji C, Ye W, Rong Y, Ge X, Wang Z, Tang P, Zhou Z, Luo Y, Cai W. Deubiquitinase UCHL1 promotes angiogenesis and blood-spinal cord barrier function recovery after spinal cord injury by stabilizing Sox17. Cell Mol Life Sci 2024; 81:137. [PMID: 38478109 PMCID: PMC10937794 DOI: 10.1007/s00018-024-05186-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 02/15/2024] [Accepted: 02/18/2024] [Indexed: 03/17/2024]
Abstract
Improving the function of the blood-spinal cord barrier (BSCB) benefits the functional recovery of mice following spinal cord injury (SCI). The death of endothelial cells and disruption of the BSCB at the injury site contribute to secondary damage, and the ubiquitin-proteasome system is involved in regulating protein function. However, little is known about the regulation of deubiquitinated enzymes in endothelial cells and their effect on BSCB function after SCI. We observed that Sox17 is predominantly localized in endothelial cells and is significantly upregulated after SCI and in LPS-treated brain microvascular endothelial cells. In vitro Sox17 knockdown attenuated endothelial cell proliferation, migration, and tube formation, while in vivo Sox17 knockdown inhibited endothelial regeneration and barrier recovery, leading to poor functional recovery after SCI. Conversely, in vivo overexpression of Sox17 promoted angiogenesis and functional recovery after injury. Additionally, immunoprecipitation-mass spectrometry revealed the interaction between the deubiquitinase UCHL1 and Sox17, which stabilized Sox17 and influenced angiogenesis and BSCB repair following injury. By generating UCHL1 conditional knockout mice and conducting rescue experiments, we further validated that the deubiquitinase UCHL1 promotes angiogenesis and restoration of BSCB function after injury by stabilizing Sox17. Collectively, our findings present a novel therapeutic target for treating SCI by revealing a potential mechanism for endothelial cell regeneration and BSCB repair after SCI.
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Affiliation(s)
- Jiaxing Wang
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Chengyue Ji
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Wu Ye
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yuluo Rong
- Department of Orthopaedics, Centre for Leading Medicine and Advanced Technologies of IHM, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Xuhui Ge
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhuanghui Wang
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Pengyu Tang
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zheng Zhou
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Yongjun Luo
- Department of Orthopedics, The Fourth Affiliated Hospital of Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Weihua Cai
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
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15
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Liu Y, Lin F, Wu C, Liu W, Wang H, Xiao C, Chen X. In Situ Reaction-Generated Aldehyde-Scavenging Polypeptides-Curcumin Conjugate Nanoassemblies for Combined Treatment of Spinal Cord Injury. ACS NANO 2024; 18:7346-7362. [PMID: 38416031 DOI: 10.1021/acsnano.3c08662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
The microenvironment after traumatic spinal cord injury (SCI) involves complex pathological processes, including elevated oxidative stress, accumulated reactive aldehydes from lipid peroxidation, excessive immune cell infiltration, etc. Unfortunately, most of current neuroprotection therapies cannot cope with the intricate pathophysiology of SCI, leading to scant treatment efficacies. Here, we developed a facile in situ reaction-induced self-assembly method to prepare aldehyde-scavenging polypeptides (PAH)-curcumin conjugate nanoassemblies (named as PFCN) for combined neuroprotection in SCI. The prepared PFCN could release PAH and curcumin in response to oxidative and acidic SCI microenvironment. Subsequently, PFCN exhibited an effectively neuroprotective effect through scavenging toxic aldehydes as well as reactive nitrogen and oxygen species in neurons, modulating microglial M1/M2 polarization, and down-regulating the expression of inflammation-related cytokines to inhibit neuroinflammation. The intravenous administration of PFCN could significantly ameliorate the malignant microenvironment of injured spinal cord, protect the neurons, and promote the motor function recovery in the contusive SCI rat model.
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Affiliation(s)
- Yixuan Liu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China
| | - Feng Lin
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, China
| | - Cheng Wu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China
| | - Wanguo Liu
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, China
| | - Hao Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China
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16
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Fang Z, Zhao G, Zhao S, Yu X, Feng R, Zhang YE, Li H, Huang L, Guo Z, Zhang Z, Abdurahman M, Hong H, Li P, Wu B, Zhu J, Zhong X, Huang D, Lu H, Zhao X, Chen Z, Zhang W, Guo J, Zheng H, He Y, Qin S, Lu H, Zhao Y, Wang X, Ge J, Li H. GTF2H4 regulates partial EndMT via NF-κB activation through NCOA3 phosphorylation in ischemic diseases. Innovation (N Y) 2024; 5:100565. [PMID: 38379791 PMCID: PMC10876913 DOI: 10.1016/j.xinn.2024.100565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 01/01/2024] [Indexed: 02/22/2024] Open
Abstract
Partial endothelial-to-mesenchymal transition (EndMT) is an intermediate phenotype observed in endothelial cells (ECs) undergoing a transition toward a mesenchymal state to support neovascularization during (patho)physiological angiogenesis. Here, we investigated the occurrence of partial EndMT in ECs under hypoxic/ischemic conditions and identified general transcription factor IIH subunit 4 (GTF2H4) as a positive regulator of this process. In addition, we discovered that GTF2H4 collaborates with its target protein excision repair cross-complementation group 3 (ERCC3) to co-regulate partial EndMT. Furthermore, by using phosphorylation proteomics and site-directed mutagenesis, we demonstrated that GTF2H4 was involved in the phosphorylation of receptor coactivator 3 (NCOA3) at serine 1330, which promoted the interaction between NCOA3 and p65, resulting in the transcriptional activation of NF-κB and the NF-κB/Snail signaling axis during partial EndMT. In vivo experiments confirmed that GTF2H4 significantly promoted partial EndMT and angiogenesis after ischemic injury. Collectively, our findings reveal that targeting GTF2H4 is promising for tissue repair and offers potential opportunities for treating hypoxic/ischemic diseases.
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Affiliation(s)
- Zheyan Fang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Gang Zhao
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Shuang Zhao
- Department of Medical Examination, Shanghai Xuhui District Central Hospital, Shanghai 200031, China
| | - Xueting Yu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Runyang Feng
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - You-en Zhang
- Department of Cardiology and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Haomin Li
- Clinical Data Center, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Lei Huang
- Department of Molecular, Cell, and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Zhenyang Guo
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Zhentao Zhang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Mukaddas Abdurahman
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Hangnan Hong
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Peng Li
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Bing Wu
- Department of Cardiology and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Jinhang Zhu
- Bio-X Institute, Key Laboratory for The Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Xin Zhong
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Dong Huang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Hao Lu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xin Zhao
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhaoyang Chen
- Department of Cardiology, Heart Center of Fujian Province, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Wenbin Zhang
- Department of Cardiology, Sir Run Run Shaw Hospital, affiliated with Zhejiang University School of Medicine, Hangzhou 310020, China
| | - Junjie Guo
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Hongchao Zheng
- Department of Cardiology, Shanghai Xuhui District Central Hospital, Shanghai 200031, China
| | - Yue He
- Department of Cardiology, Shanghai Eighth People’s Hospital, Shanghai 200235, China
| | - Shengying Qin
- Bio-X Institute, Key Laboratory for The Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Haojie Lu
- Department of Chemistry and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Yun Zhao
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
- School of Life Science and Technology, Shanghai Tech University, 100 Haike Road, Shanghai 201210, China
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Xiangdong Wang
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Junbo Ge
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- State Key Laboratory of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai 200032, China
- Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai 200032, China
- Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai 200032, China
| | - Hua Li
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
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17
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Xu J, Ren Z, Niu T, Li S. Epigenetic mechanism of miR-26b-5p-enriched MSCs-EVs attenuates spinal cord injury. Regen Ther 2024; 25:35-48. [PMID: 38058606 PMCID: PMC10696431 DOI: 10.1016/j.reth.2023.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/11/2023] [Accepted: 10/26/2023] [Indexed: 12/08/2023] Open
Abstract
Mesenchymal stem cells (MSCs) and extracellular vesicles (EVs) are promising therapies for the treatment of spinal cord injury (SCI). This study sought to explore the epigenetic mechanism of miR-26b-5p-enriched MSCs-EVs in SCI. MSCs and MSCs-EVs were isolated and characterized. The SCI rat model was established, followed by Basso-Beattie-Bresnahan scoring and H&E staining. In vitro cell models were established in PC12 cells with lipopolysaccharide (LPS) treatment, followed by cell viability evaluation using CCK-8 assay. The levels of miR-26b-5p, lysine demethylase 6A (KDM6A), NADPH oxidase 4 (NOX4), reactive oxygen species (ROS), and inflammatory factors (TNF-α/IL-1β/IL-6) in tissues and cells were detected. The levels of cy3-lablled miR-26b-5p in tissues and cells were observed by confocal microscopy. The binding of miR-26b-5p to KDM6A 3'UTR and the enrichments of KDM6A and H3K27me3 at the NOX4 promoter were analyzed. MSCs-EVs attenuated motor dysfunction, inflammation, and oxidative stress in SCI rats. MSCs-EVs delivered miR-26b-5p into PC12 cells to reduce LPS-induced inflammation and ROS production and enhance cell viability. miR-26b-5p inhibited KDM6A, and KDM6A reduced H3K27me3 at the NOX4 promoter to promote NOX4. Overexpression of KDM6A or NOX4 reversed the alleviative role of MSCs-EVs in SCI or LPS-induced cell injury. Overall, MSCs-EVs delivered miR-26b-5p into cells to target the KDM6A/NOX4 axis and facilitate the recovery from SCI.
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Affiliation(s)
- Jinghui Xu
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University (Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology), Guangzhou, 510080, China
| | - Zhenxiao Ren
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University (Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology), Guangzhou, 510080, China
| | - Tianzuo Niu
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University (Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology), Guangzhou, 510080, China
| | - Siyuan Li
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University (Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology), Guangzhou, 510080, China
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Talepoor AG, Doroudchi M. Regulatory RNAs in immunosenescence. Immun Inflamm Dis 2024; 12:e1209. [PMID: 38456619 PMCID: PMC10921898 DOI: 10.1002/iid3.1209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/17/2024] [Accepted: 02/19/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Immunosenescence is a multifactorial stress response to different intrinsic and extrinsic insults that cause immune deterioration and is accompanied by genomic or epigenomic perturbations. It is now widely recognized that genes and proteins contributing in the process of immunosenescence are regulated by various noncoding (nc) RNAs, including microRNAs (miRNAs), long ncRNAs, and circular RNAs. AIMS This review article aimed to evaluate the regulatore RNAs roles in the process of immunosenescence. METHODS We analyzed publications that were focusing on the different roles of regulatory RNAs on the several aspects of immunosenescence. RESULTS In the immunosenescence setting, ncRNAs have been found to play regulatory roles at both transcriptional and post-transcriptional levels. These factors cooperate to regulate the initiation of gene expression programs and sustaining the senescence phenotype and proinflammatory responses. CONCLUSION Immunosenescence is a complex process with pivotal alterations in immune function occurring with age. The extensive network that drive immunosenescence-related features are are mainly directed by a variety of regulatory RNAs such as miRNAs, lncRNAs, and circRNAs. Latest findings about regulation of senescence by ncRNAs in the innate and adaptive immune cells as well as their role in the immunosenescence pathways, provide a better understanding of regulatory RNAs function in the process of immunosenescence.
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Affiliation(s)
- Atefe Ghamar Talepoor
- Department of Immunology, School of MedicineShiraz University of Medical SciencesShirazIran
- Autoimmune Diseases Research CenterUniversity of Medical SciencesShirazIran
| | - Mehrnoosh Doroudchi
- Department of Immunology, School of MedicineShiraz University of Medical SciencesShirazIran
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Gu C, Geng X, Wu Y, Dai Y, Zeng J, Wang Z, Fang H, Sun Y, Chen X. Engineered Macrophage Membrane-Coated Nanoparticles with Enhanced CCR2 Expression Promote Spinal Cord Injury Repair by Suppressing Neuroinflammation and Neuronal death. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305659. [PMID: 37884477 DOI: 10.1002/smll.202305659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/09/2023] [Indexed: 10/28/2023]
Abstract
Spinal cord injury (SCI) is a severe neurological disorder characterized by significant disability and limited treatment options. Mitigating the secondary inflammatory response following the initial injury is the primary focus of current research in the treatment of SCI. CCL2 (C─C motif chemokine ligand 2) serves as the primary regulator responsible for inflammatory chemotaxis of the majority of peripheral immune cells, blocking the CCL2-CCR2 (C─C chemokine receptor type 2) axis has shown considerable therapeutic potential for inflammatory diseases, including SCI. In this study, it presents a multifunctional biomimetic nanoplatform (CCR2-MM@PLGA/Cur) specifically designed to target the CCL2-CCR2 axis, which consisted of an engineered macrophage membrane (MM) coating with enhanced CCR2 expression and a PLGA (poly (lactic-co-glycolic acid)) nanoparticle that encapsulated therapeutic drugs. CCR2 overexpression on MM not only enhanced drug-targeted delivery to the injury site, but also attenuated macrophage infiltration, microglia pro-inflammatory polarization, and neuronal apoptosis by trapping CCL2. Consequently, it facilitated neural regeneration and motor function recovery in SCI mice, enabling a comprehensive treatment approach for SCI. The feasibility and efficacy of this platform are confirmed through a series of in vitro and in vivo assays, offering new insights and potential avenues for further exploration in the treatment of SCI.
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Affiliation(s)
- Changjiang Gu
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Xiangwu Geng
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Yicheng Wu
- Department of Vascular and Endovascular Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Yuya Dai
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Junkai Zeng
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Zhenqiang Wang
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Huapan Fang
- State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, P. R. China
| | - Yanqing Sun
- Department of Orthopaedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 85 Wujin Road, Shanghai, 200080, P. R. China
| | - Xiongsheng Chen
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
- Department of Orthopaedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 85 Wujin Road, Shanghai, 200080, P. R. China
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20
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Liu J, Qi L, Bao S, Yan F, Chen J, Yu S, Dong C. The acute spinal cord injury microenvironment and its impact on the homing of mesenchymal stem cells. Exp Neurol 2024; 373:114682. [PMID: 38199509 DOI: 10.1016/j.expneurol.2024.114682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/08/2023] [Accepted: 01/02/2024] [Indexed: 01/12/2024]
Abstract
Spinal cord injury (SCI) is a highly debilitating condition that inflicts devastating harm on the lives of affected individuals, underscoring the urgent need for effective treatments. By activating inflammatory cells and releasing inflammatory factors, the secondary injury response creates an inflammatory microenvironment that ultimately determines whether neurons will undergo necrosis or regeneration. In recent years, mesenchymal stem cells (MSCs) have garnered increasing attention for their therapeutic potential in SCI. MSCs not only possess multipotent differentiation capabilities but also have homing abilities, making them valuable as carriers and mediators of therapeutic agents. The inflammatory microenvironment induced by SCI recruits MSCs to the site of injury through the release of various cytokines, chemokines, adhesion molecules, and enzymes. However, this mechanism has not been previously reported. Thus, a comprehensive exploration of the molecular mechanisms and cellular behaviors underlying the interplay between the inflammatory microenvironment and MSC homing is crucial. Such insights have the potential to provide a better understanding of how to harness the therapeutic potential of MSCs in treating inflammatory diseases and facilitating injury repair. This review aims to delve into the formation of the inflammatory microenvironment and how it influences the homing of MSCs.
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Affiliation(s)
- Jinyi Liu
- Department of Anatomy, Medical College of Nantong University, Nantong, China
| | - Longju Qi
- Affiliated Nantong Hospital 3 of Nantong University, Nantong, China
| | - Shengzhe Bao
- Department of Anatomy, Medical College of Nantong University, Nantong, China
| | - Fangsu Yan
- Department of Anatomy, Medical College of Nantong University, Nantong, China
| | - Jiaxi Chen
- Department of Anatomy, Medical College of Nantong University, Nantong, China
| | - Shumin Yu
- Department of Anatomy, Medical College of Nantong University, Nantong, China
| | - Chuanming Dong
- Department of Anatomy, Medical College of Nantong University, Nantong, China; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China.
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21
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Liu Y, Luo Z, Xie Y, Sun Y, Yuan F, Jiang L, Lu H, Hu J. Extracellular vesicles from UTX-knockout endothelial cells boost neural stem cell differentiation in spinal cord injury. Cell Commun Signal 2024; 22:155. [PMID: 38424563 PMCID: PMC10903014 DOI: 10.1186/s12964-023-01434-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/11/2023] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Vascular endothelial cells are pivotal in the pathophysiological progression following spinal cord injury (SCI). The UTX (Ubiquitously Transcribed Tetratripeptide Repeat on Chromosome X) serves as a significant regulator of endothelial cell phenotype. The manipulation of endogenous neural stem cells (NSCs) offers a compelling strategy for the amelioration of SCI. METHODS Two mouse models were used to investigate SCI: NSCs lineage-traced mice and mice with conditional UTX knockout (UTX KO) in endothelial cells. To study the effects of UTX KO on neural differentiation, we harvested extracellular vesicles (EVs) from both UTX KO spinal cord microvascular endothelial cells (SCMECs) and negative control SCMECs. These EVs were then employed to modulate the differentiation trajectory of endogenous NSCs in the SCI model. RESULTS In our NSCs lineage-traced mice model of SCI, a marked decrease in neurogenesis was observed post-injury. Notably, NSCs in UTX KO SCMECs mice showed enhanced neuronal differentiation compared to controls. RNA sequencing and western blot analyses revealed an upregulation of L1 cell adhesion molecule (L1CAM), a gene associated with neurogenesis, in UTX KO SCMECs and their secreted EVs. This aligns with the observed promotion of neurogenesis in UTX KO conditions. In vivo administration of L1CAM-rich EVs from UTX KO SCMECs (KO EVs) to the mice significantly enhanced neural differentiation. Similarly, in vitro exposure of NSCs to KO EVs resulted in increased activation of the Akt signaling pathway, further promoting neural differentiation. Conversely, inhibiting Akt phosphorylation or knocking down L1CAM negated the beneficial effects of KO EVs on NSC neuronal differentiation. CONCLUSIONS In conclusion, our findings substantiate that EVs derived from UTX KO SCMECs can act as facilitators of neural differentiation following SCI. This study not only elucidates a novel mechanism but also opens new horizons for therapeutic interventions in the treatment of SCI. Video Abstract.
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Affiliation(s)
- Yudong Liu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- Hunan Engineering Research Center of Sports and Health, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Zixiang Luo
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- Hunan Engineering Research Center of Sports and Health, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yong Xie
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- Hunan Engineering Research Center of Sports and Health, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yi Sun
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- Hunan Engineering Research Center of Sports and Health, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Feifei Yuan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
- Hunan Engineering Research Center of Sports and Health, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Liyuan Jiang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.
- Hunan Engineering Research Center of Sports and Health, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| | - Hongbin Lu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.
- Hunan Engineering Research Center of Sports and Health, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| | - Jianzhong Hu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.
- Hunan Engineering Research Center of Sports and Health, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
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Zhou Y, Zhang Y, Botchway BOA, Wang X, Liu X. Curcumin can improve spinal cord injury by inhibiting DNA methylation. Mol Cell Biochem 2024; 479:351-362. [PMID: 37076656 DOI: 10.1007/s11010-023-04731-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 04/05/2023] [Indexed: 04/21/2023]
Abstract
Spinal cord injury (SCI) is a serious central nervous system disease. Traumatic SCI often causes persistent neurological deficits below the injury level. Epigenetic changes occur after SCI. Studies have shown DNA methylation to be a key player in nerve regeneration and remodeling, and in regulating some pathophysiological characteristics of SCI. Curcumin is a natural polyphenol from turmeric. It has anti-inflammatory, antioxidant, and neuroprotective effects, and can mitigate the cell and tissue damage caused by SCI. This report analyzed the specific functions of DNA methylation in central nervous system diseases, especially traumatic brain injury and SCI. DNA methylation can regulate the level of gene expressions in the central nervous system. Therefore, pharmacological interventions regulating DNA methylation may be promising for SCI.
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Affiliation(s)
- Yu Zhou
- Department of Histology and Embryology, Medical College, Shaoxing University, Shaoxing, 312000, Zhejiang, China
| | - Yong Zhang
- Department of Histology and Embryology, Medical College, Shaoxing University, Shaoxing, 312000, Zhejiang, China
| | - Benson O A Botchway
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, China
- Bupa Cromwell Hospital, London, UK
| | - Xichen Wang
- Department of Histology and Embryology, Medical College, Shaoxing University, Shaoxing, 312000, Zhejiang, China
| | - Xuehong Liu
- Department of Histology and Embryology, Medical College, Shaoxing University, Shaoxing, 312000, Zhejiang, China.
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23
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Yang W, Wang Y, Huang Y, Wang T, Li C, Zhang P, Liu W, Yin Y, Li R, Tao K. Immune Response Gene-1 [IRG1]/itaconate protect against multi-organ injury via inhibiting gasdermin D-mediated pyroptosis and inflammatory response. Inflammopharmacology 2024; 32:419-432. [PMID: 37470905 DOI: 10.1007/s10787-023-01278-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 06/09/2023] [Indexed: 07/21/2023]
Abstract
Sepsis is a multiple organ dysfunction syndrome due to a dysregulated response to infection with unacceptably high mortality. Currently, no effective treatment exists for sepsis. IRG1/itaconate has been considered to play a protective role for various inflammatory diseases. In the present study, we explored the protective role and mechanisms of IRG1/itaconate on lipopolysaccharide (LPS)-induced multi-organ injury. The LPS-induced sepsis model was used. IRG1-/- and wild type mice were used to explore the protective role of IRG1/itaconate on multi-organ injury. GSDMD-/- mice were used to explore the effect of GSDMD-mediated pyroptosis on LPS-induced model. RAW264.7 cells and bone-marrow-derived macrophages (BMDMs) were used for in vitro studies. In vivo experiments, we found IRG1 deficiency aggravated LPS-induced multi-organ injury especially lung injury. 4-Octyl itaconate (4-OI), a derivative of itaconate, significantly ameliorated LPS-induced acute lung, liver, and kidney injury. Furthermore, IRG1/4-OI decreased serum interleukin-1β (IL-1β), IL-6, tumor necrosis factor-α (TNF-α) level, macrophage infiltration, and TUNEL-positive cells in lung and liver tissue. Western blot showed IRG1/itaconate decreased the expressions of p-ERK, p-P38, p-JNK, and p-P65 and increased the expression of Nrf2/HO-1 in lung tissue. Meanwhile, 4-OI inhibited the expression of GSDMD-N. In vitro experiments, 4-OI inhibited ROS production and promoted apoptosis under LPS stimulation in RAW264.7 cells. Furthermore, 4-OI inhibited nuclear factor-kappaB/mitogen-activated protein kinase pathways and GSDMD-medicated pyroptosis in BMDMs. Finally, we used GSDMD-/- mice to explore the effect of pyroptosis on LPS-induced multi-organ injury. The results showed that GSDMD deficiency significantly ameliorated lung injury. In conclusion, our data demonstrated that IRG1/itaconate protect against multi-organ injury via inhibiting inflammation response and GSDMD-indicated pyroptosis, which may be a promising agent for protecting against sepsis.
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Affiliation(s)
- Wenchang Yang
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei Province, China
| | - Yaxin Wang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yongzhou Huang
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei Province, China
- Department of General Surgery, First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, People's Republic of China
| | - Tao Wang
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei Province, China
| | - Chengguo Li
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei Province, China
| | - Peng Zhang
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei Province, China
| | - Weizhen Liu
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei Province, China
| | - Yuping Yin
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei Province, China
| | - Ruidong Li
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei Province, China.
| | - Kaixiong Tao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei Province, China.
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24
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Cai WW, Gao Y, Cheng JW, Yu Y, Zong SY, Li YH, Wang Y, Song YN, Mao XT, Guan J, Xu L, Zhang DY, Li K, Wei F. Berberine modulates the immunometabolism and differentiation of CD4 + T cells alleviating experimental arthritis by suppression of M1-exo-miR155. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 124:155255. [PMID: 38181528 DOI: 10.1016/j.phymed.2023.155255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 09/29/2023] [Accepted: 12/01/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND The inflammatory cascade mediated by macrophages and T cells is considered to be an important factor in promoting the progression of rheumatoid arthritis (RA). Our previous study found that berberine (BBR) can therapeutically impact adjuvant arthritis (AA) in rats through the regulation of macrophage polarization and the balance of Th17/Treg. However, whether BBR's effects on CD4+T cells response are related to its suppression of M1 macrophage still unclear. PURPOSE The study aimed to estimate the mechanism of BBR in regulating the immunometabolism and differentiation of CD4+T cells are related to exosome derived from M1-macrophage (M1-exo). STUDY-DESIGN/METHODS Mice model of collagen-induced arthritis (CIA) was established to investigate the antiarthritic effect of BBR was related with regulation of M1-exo to balance T cell subsets. Bioinformatics analysis using the GEO database and meta-analysis. In vitro, we established the co-culture system involving M1-exo and CD4+ T cells to examine whether BBR inhibits CD4+T cell activation and differentiation by influencing M1-exo-miR155. Exosome was characterized using transmission electron microscopy and western blot analysis, macrophage and CD4+T cell subpopulation were detected by flow cytometry. Further, the metabolic profiles of CD4+T cells were assessed by ECAR, OCR, and the level of glucose, lactate, intracellular ATP. RESULT BBR reinstates CD4+ T cell homeostasis and reduces miR155 levels in both M1-exo and CD4+ T cells obtained from mice with CIA. In vitro, we found exosomes are indispensable for M1-CM on T lymphocyte activation and differentiation. BBR reversed M1-exo facilitating the activation and differentiation of CD4+T cells. Furthermore, BBR reversed glycolysis reprogramming of CD4+T cells induced by M1-exo, while these regulation effects were significantly weakened by miR155 mimic. CONCLUSION The delivery of miR-155 by M1-exo contributes to CD4+ T cell immunometabolism dysfunction, a process implicated in the development of RA. The anti-arthritic effect of BBR is associated with the suppression of glycolysis and the disruption of CD4+ T cell subsets balance, achieved by reducing the transfer of M1-exo-miR155 into T cells.
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Affiliation(s)
- Wei-Wei Cai
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Yi Gao
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Jing-Wen Cheng
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Yun Yu
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Shi-Ye Zong
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Yu-Hui Li
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Ying Wang
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China; Biochemical Engineering Center of Anhui, Bengbu, Anhui, China
| | - Yi-Ning Song
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China; Biochemical Engineering Center of Anhui, Bengbu, Anhui, China
| | - Xiao-Ting Mao
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Jie Guan
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Long Xu
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Die-Yu Zhang
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Kai Li
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China
| | - Fang Wei
- School of Pharmacy, Bengbu Medical College, No.2600, Donghai Avenue, Bengbu, Anhui, China; Biochemical Engineering Center of Anhui, Bengbu, Anhui, China.
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25
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Yao D, Chen E, Li Y, Wang K, Liao Z, Li M, Huang L. The role of endoplasmic reticulum stress, mitochondrial dysfunction and their crosstalk in intervertebral disc degeneration. Cell Signal 2024; 114:110986. [PMID: 38007189 DOI: 10.1016/j.cellsig.2023.110986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/30/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
Low back pain (LBP) is a pervasive global health issue. Roughly 40% of LBP cases are attributed to intervertebral disc degeneration (IVDD). While the underlying mechanisms of IVDD remain incompletely understood, it has been confirmed that apoptosis and extracellular matrix (ECM) degradation caused by many factors such as inflammation, oxidative stress, calcium (Ca2+) homeostasis imbalance leads to IVDD. Endoplasmic reticulum (ER) stress and mitochondrial dysfunction are involved in these processes. The initiation of ER stress precipitates cell apoptosis, and is also related to inflammation, levels of oxidative stress, and Ca2+ homeostasis. Additionally, mitochondrial dynamics, antioxidative systems, disruption of Ca2+ homeostasis are closely associated with Reactive Oxygen Species (ROS) and inflammation, promoting cell apoptosis. However, numerous crosstalk exists between the ER and mitochondria, where they interact through inflammatory cytokines, signaling pathways, ROS, or key molecules such as CHOP, forming positive and negative feedback loops. Furthermore, the contact sites between the ER and mitochondria, known as mitochondria-associated membranes (MAM), facilitate direct signal transduction such as Ca2+ transfer. However, the current attention towards this issue is insufficient. Therefore, this review summarizes the impacts of ER stress and mitochondrial dysfunction on IVDD, along with the possibly potential crosstalk between them, aiming to unveil novel avenues for IVDD intervention.
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Affiliation(s)
- Dengbo Yao
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.; Department of Orthopedics Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Enming Chen
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Yuxi Li
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Kun Wang
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.; Department of Orthopedics Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Zhuangyao Liao
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Ming Li
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Lin Huang
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China..
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Zhu C, Pan L, Zhou F, Mao R, Hong Y, Wan R, Li X, Jin L, Zou H, Zhang H, Chen QM, Li S. Urocortin2 attenuates diabetic coronary microvascular dysfunction by regulating macrophage extracellular vesicles. Biochem Pharmacol 2024; 219:115976. [PMID: 38081372 DOI: 10.1016/j.bcp.2023.115976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/27/2023] [Accepted: 12/06/2023] [Indexed: 12/26/2023]
Abstract
Diabetic patients develop coronary microvascular dysfunction (CMD) and exhibit high mortality of coronary artery disease. Methylglyoxal (MGO) largely accumulates in the circulation due to diabetes. We addressed whether macrophages exposed to MGO exhibited damaging effect on the coronary artery and whether urocortin2 (UCN2) serve as protecting factors against such diabetes-associated complication. Type 2 diabetes was induced by high-fat diet and a single low-dose streptozotocin in mice. Small extracellular vesicles (sEV) derived from MGO-treated macrophages (MGO-sEV) were used to produce diabetes-like CMD. UCN2 was examined for a protective role against CMD. The involvement of arginase1 and IL-33 was tested by pharmacological inhibitor and IL-33-/- mice. MGO-sEV was capable of causing coronary artery endothelial dysfunction similar to that by diabetes. Immunocytochemistry studies of diabetic coronary arteries supported the transfer of arginase1 from macrophages to endothelial cells. Mechanism studies revealed arginase1 contributed to the impaired endothelium-dependent relaxation of coronary arteries in diabetic and MGO-sEV-treated mice. UCN2 significantly improved coronary artery endothelial function, and prevented MGO elevation in diabetic mice or enrichment of arginase1 in MGO-sEV. Diabetes caused a reduction of IL-33, which was also reversed by UCN2. IL-33-/- mice showed impaired endothelium-dependent relaxation of coronary arteries, which can be mitigated by arginase1 inhibition but can't be improved by UCN2 anymore, indicating the importance of restoring IL-33 for the protection against diabetic CMD by UCN2. Our data suggest that MGO-sEV induces CMD via shuttling arginase1 to coronary arteries. UCN2 is able to protect against diabetic CMD via modulating MGO-altered macrophage sEV cargoes.
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Affiliation(s)
- Chao Zhu
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, China.
| | - Lihua Pan
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, China
| | - Feier Zhou
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, China
| | - Rongchen Mao
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, China
| | - Yali Hong
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, China
| | - Rong Wan
- Jiangxi Key Laboratory of Molecular Medicine, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Xu Li
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, China
| | - Lai Jin
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, China
| | - Huayiyang Zou
- Department of Cardiology, the First Affiliated Hospital, Nanjing Medical University, Nanjing 211166, China
| | - Hao Zhang
- Department of Nephrology, Nanjing First Hospital, Nanjing Medical University, Nanjing 211166, China
| | - Qin M Chen
- Department of Pharmacy Practice and Science, College of Pharmacy, University of Arizona, Tucson, AZ 85721, USA
| | - Shengnan Li
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, China.
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Li X, Han Y, Meng Y, Yin L. Small RNA-big impact: exosomal miRNAs in mitochondrial dysfunction in various diseases. RNA Biol 2024; 21:1-20. [PMID: 38174992 PMCID: PMC10773649 DOI: 10.1080/15476286.2023.2293343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2023] [Indexed: 01/05/2024] Open
Abstract
Mitochondria are multitasking organelles involved in maintaining the cell homoeostasis. Beyond its well-established role in cellular bioenergetics, mitochondria also function as signal organelles to propagate various cellular outcomes. However, mitochondria have a self-destructive arsenal of factors driving the development of diseases caused by mitochondrial dysfunction. Extracellular vesicles (EVs), a heterogeneous group of membranous nano-sized vesicles, are present in a variety of bodily fluids. EVs serve as mediators for intercellular interaction. Exosomes are a class of small EVs (30-100 nm) released by most cells. Exosomes carry various cargo including microRNAs (miRNAs), a class of short noncoding RNAs. Recent studies have closely associated exosomal miRNAs with various human diseases, including diseases caused by mitochondrial dysfunction, which are a group of complex multifactorial diseases and have not been comprehensively described. In this review, we first briefly introduce the characteristics of EVs. Then, we focus on possible mechanisms regarding exosome-mitochondria interaction through integrating signalling networks. Moreover, we summarize recent advances in the knowledge of the role of exosomal miRNAs in various diseases, describing how mitochondria are changed in disease status. Finally, we propose future research directions to provide a novel therapeutic strategy that could slow the disease progress mediated by mitochondrial dysfunction.
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Affiliation(s)
- Xiaqing Li
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital, Jinan University Guangzhou, Guangdong, China
- Central laboratory, The Fifth Hospital Affiliated to Jinan University, Heyuan, China
| | - Yi Han
- Traditional Chinese Medicine Department, People’s Hospital of Yanjiang District, Ziyang, Sichuan, China
| | - Yu Meng
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital, Jinan University Guangzhou, Guangdong, China
- Central laboratory, The Fifth Hospital Affiliated to Jinan University, Heyuan, China
| | - Lianghong Yin
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital, Jinan University Guangzhou, Guangdong, China
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Li W, Liu M, Chu M. Strategies targeting IL-33/ST2 axis in the treatment of allergic diseases. Biochem Pharmacol 2023; 218:115911. [PMID: 37981174 DOI: 10.1016/j.bcp.2023.115911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/28/2023] [Accepted: 11/06/2023] [Indexed: 11/21/2023]
Abstract
Interleukin-33 (IL-33) and its receptor Serum Stimulation-2 (ST2, also called Il1rl1) are members of the IL-1 superfamily that plays a crucial role in allergic diseases. The interaction of IL-33 and ST2 mainly activates NF-κB signaling and MAPK signaling via the MyD88/IRAK/TRAF6 module, resulting in the production and secretion of pro-inflammatory cytokines. The IL-33/ST2 axis participates in the pathogenesis of allergic diseases, and therefore serves as a promising strategy for allergy treatment. In recent years, strategies blocking IL-33/ST2 through targeting regulation of IL-33 and ST2 or targeting the molecules involved in the signal transduction have been extensively studied mostly in animal models. These studies provide various potential therapeutic agents other than antibodies, such as small molecules, nucleic acids and traditional Chinese medicines. Herein, we reviewed potential targets and agents targeting IL-33/ST2 axis in the treatment of allergic diseases, providing directions for further investigations on treatments for IL-33 induced allergic diseases.
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Affiliation(s)
- Wenran Li
- Department of Immunology, School of Basic Medical Sciences, Health Science Centre, Peking University. Beijing, China
| | - Mengqi Liu
- Department of Immunology, School of Basic Medical Sciences, Health Science Centre, Peking University. Beijing, China
| | - Ming Chu
- Department of Immunology, School of Basic Medical Sciences, Health Science Centre, Peking University. Beijing, China; Beijing Life Science Academy, Beijing, China.
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Chen F, Xiong B, Xian S, Zhang J, Ding R, Xu M, Zhang Z. Fibroblast growth factor 5 protects against spinal cord injury through activating AMPK pathway. J Cell Mol Med 2023; 27:3706-3716. [PMID: 37950418 PMCID: PMC10718139 DOI: 10.1111/jcmm.17934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/26/2023] [Accepted: 08/18/2023] [Indexed: 11/12/2023] Open
Abstract
Excessive productions of inflammatory cytokines and free radicals are involved in spinal cord injury (SCI). Fibroblast growth factor 5 (FGF5) is associated with inflammatory response and oxidative damage, and we herein intend to determine its function in SCI. Lentivirus was instilled to overexpress or knockdown FGF5 expression in mice. Compound C or H89 2HCl were used to suppress AMP-activated protein kinase (AMPK) or protein kinase A (PKA), respectively. FGF5 level was significantly decreased during SCI. FGF5 overexpression mitigated, while FGF5 silence further facilitated inflammatory response, oxidative damage and SCI. Mechanically, FGF5 activated AMPK to attenuate SCI in a cAMP/PKA-dependent manner, while inhibiting AMPK or PKA with pharmacological methods significantly abolished the neuroprotective effects of FGF5 against SCI. More importantly, serum FGF5 level was decreased in SCI patients, and elevated serum FGF5 level often indicate better prognosis. Our study identifies FGF5 as an effective therapeutic and prognostic target for SCI.
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Affiliation(s)
- Feng Chen
- Department of AnesthesiologyZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Bing‐Rui Xiong
- Department of AnesthesiologyZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Shu‐Yue Xian
- Department of AnesthesiologyZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Jing Zhang
- Department of AnesthesiologyZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Rui‐Wen Ding
- Department of AnesthesiologyZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Ming Xu
- Department of Thoracic SurgeryZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Zong‐Ze Zhang
- Department of AnesthesiologyZhongnan Hospital of Wuhan UniversityWuhanChina
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Chen Y, Zhang H, Hu X, Cai W, Jiang L, Wang Y, Wu Y, Wang X, Ni W, Zhou K. Extracellular Vesicles: Therapeutic Potential in Central Nervous System Trauma by Regulating Cell Death. Mol Neurobiol 2023; 60:6789-6813. [PMID: 37482599 DOI: 10.1007/s12035-023-03501-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 07/11/2023] [Indexed: 07/25/2023]
Abstract
CNS (central nervous system) trauma, which is classified as SCI (spinal cord injury) and TBI (traumatic brain injury), is gradually becoming a major cause of accidental death and disability worldwide. Many previous studies have verified that the pathophysiological mechanism underlying cell death and the subsequent neuroinflammation caused by cell death are pivotal factors in the progression of CNS trauma. Simultaneously, EVs (extracellular vesicles), membrane-enclosed particles produced by almost all cell types, have been proven to mediate cell-to-cell communication, and cell death involves complex interactions among molecules. EVs have also been proven to be effective carriers of loaded bioactive components to areas of CNS trauma. Therefore, EVs are promising therapeutic targets to cure CNS trauma. However, the link between EVs and various types of cell death in the context of CNS trauma remains unknown. Therefore, in this review, we summarize the mechanism underlying EV effects, the relationship between EVs and cell death and the pathophysiology underlying EV effects on the CNS trauma based on information in published papers. In addition, we discuss the prospects of applying EVs to the CNS as feasible therapeutic strategies for CNS trauma in the future.
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Affiliation(s)
- Yituo Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, 325027, China
| | - Haojie Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, 325027, China
| | - Xinli Hu
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wanta Cai
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, 325027, China
| | - Liting Jiang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, 325027, China
| | - Yongli Wang
- Department of Orthopedics, Huzhou Central Hospital, Huzhou, 313099, China
- Department of Orthopedics, Huzhou Basic and Clinical Translation of Orthopaedics Key Laboratory, Huzhou, 313099, China
| | - Yanqing Wu
- The Institute of Life Sciences, Wenzhou University, Wenzhou, 325035, China
| | - Xiangyang Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, 325027, China
| | - Wenfei Ni
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China.
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, 325027, China.
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 West Xueyuan Road, Wenzhou, Zhejiang, 325000, China.
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China.
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, 325027, China.
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 West Xueyuan Road, Wenzhou, Zhejiang, 325000, China.
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Zhang XH, Cui H, Zheng SM, Lu Y, Yuan HW, Zhang L, Wang HH, Du RS. Electroacupuncture regulates microglial polarization via inhibiting NF-κB/COX2 pathway following traumatic brain injury. Brain Res 2023; 1818:148516. [PMID: 37562566 DOI: 10.1016/j.brainres.2023.148516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/23/2023] [Accepted: 08/01/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Neuroinflammation and oxidative stress are important pathological mechanisms following traumatic brain injury (TBI). The NF-κB/COX2 pathway regulates neuroinflammation and oxidative damage, while microglia also play an important role in neuroinflammation. Since NF-κB is involved in microglial polarization, targeting this pathway and microglial polarization is a critical component of TBI treatment. Currently, electroacupuncture (EA) is widely used to treat various symptoms after TBI, but the mechanisms of EA remain poorly understood. Additionally, the optimal frequency of EA remains unclear, which affects its efficacy. This study focuses on exploring the optimal frequency parameters of EA on TBI and investigating the underlying mechanisms of EA through NF-κB/COX2 pathway and microglial polarization. METHODS The study was divided into two parts. In Experiment 1, 42 Sprague Dawley (SD) rats were induced and randomly divided into seven groups (n = 6). Except for the sham group, all rats underwent controlled cortical impact (CCI) to establish TBI model. Four EA groups (with different frequencies) and manual acupuncture (without current stimulation) received stimulation on the acupoints of Shuigou (GV26), Fengchi (GB20) and Neiguan (PC6) once a day for 7 days. The neurological function was assessed by modified Neurological Severity Scores (mNSS), and the rats' memory and learning were examined by the Morris water maze (MWM). SOD, MDA, and GSH-Px were detected to evaluate the levels of oxidative stress. The levels of IL-1β, IL-6, and TNF-α were evaluated by Enzyme Linked Immunosorbent Assay (ELISA). Detection of the above indicators indicated a treatment group that exerted the strongest neuroprotection against TBI, we then conducted Experiment 2 using this screened acupuncture treatment to investigate the mechanism of acupuncture. 48 rats were randomly divided into four groups (n = 12): sham, TBI model, acupuncture and PDTC (NF-κB inhibitor). Evaluations of mNSS, MWM test, SOD, MDA, GSH-Px, IL-1β, IL-6, TNF-α, and IL-10 were the same as in Experiment 1. Western blot was applied for detecting the expression levels of NF-κB, p-NF-κB, COX2, and Arg-1. TUNEL was used to examine neuronal apoptosis. Brain structure was observed by H&E. Iba-1, COX2, and Arg-1 were investigated by immunofluorescence staining. RESULTS EA with frequency of 2/100 Hz markedly improved neuronal and cognitive function as compared to the other treatment groups. Moreover, it downregulated the expression of MDA, IL-6, IL-1β, and TNF-α and upregulated the levels of SOD and GSH-Px. In addition, Both EA with 2/100 Hz and PDTC reduced the levels of p-NF-κB, COX2 and M1 markers (COX2, IL-6, IL-1β, TNF-α) and increased the levels of M2 markers (Arg-1, IL-10). Moreover, they had similar effects on reducing inflammation, oxidative stress and apoptosis, and improving neuronal and cognitive function. CONCLUSIONS The collective findings strongly suggest that EA with 2/100 Hz can improve neurologic function by suppressing neuroinflammation, oxidative stress and apoptosis. Additionally, we confirm that EA promotes microglial polarization towards the M2 phenotype through the suppression of NF-κB/COX2 pathway, thus exerting neuroprotective effects after TBI.
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Affiliation(s)
- Xiao-Hui Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Hai Cui
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Shu-Mei Zheng
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Hong-Wen Yuan
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Lu Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Hong-Hong Wang
- Faculty of Chinese Medicine Science Guangxi University of Chinese Medicine, China
| | - Ruo-Sang Du
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
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Kong G, Xiong W, Li C, Xiao C, Wang S, Li W, Chen X, Wang J, Chen S, Zhang Y, Gu J, Fan J, Jin Z. Treg cells-derived exosomes promote blood-spinal cord barrier repair and motor function recovery after spinal cord injury by delivering miR-2861. J Nanobiotechnology 2023; 21:364. [PMID: 37794487 PMCID: PMC10552208 DOI: 10.1186/s12951-023-02089-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 08/29/2023] [Indexed: 10/06/2023] Open
Abstract
The blood-spinal cord barrier (BSCB) is a physical barrier between the blood and the spinal cord parenchyma. Current evidence suggests that the disruption of BSCB integrity after spinal cord injury can lead to secondary injuries such as spinal cord edema and excessive inflammatory response. Regulatory T (Treg) cells are effective anti-inflammatory cells that can inhibit neuroinflammation after spinal cord injury, and their infiltration after spinal cord injury exhibits the same temporal and spatial characteristics as the automatic repair of BSCB. However, few studies have assessed the relationship between Treg cells and spinal cord injury, emphasizing BSCB integrity. This study explored whether Treg affects the recovery of BSCB after SCI and the underlying mechanism. We confirmed that spinal cord angiogenesis and Treg cell infiltration occurred simultaneously after SCI. Furthermore, we observed significant effects on BSCB repair and motor function in mice by Treg cell knockout and overexpression. Subsequently, we demonstrated the presence and function of exosomes in vitro. In addition, we found that Treg cell-derived exosomes encapsulated miR-2861, and miR-2861 regulated the expression of vascular tight junction (TJs) proteins. The luciferase reporter assay confirmed the negative regulation of IRAK1 by miR-2861, and a series of rescue experiments validated the biological function of IRAKI in regulating BSCB. In summary, we demonstrated that Treg cell-derived exosomes could package and deliver miR-2861 and regulate the expression of IRAK1 to affect BSCB integrity and motor function after SCI in mice, which provides novel insights for functional repair and limiting inflammation after SCI.
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Affiliation(s)
- Guang Kong
- The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, Jiangsu, China
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wu Xiong
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Cong Li
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chenyu Xiao
- Nanjing Medical University, Nanjing, Jiangsu, China
- Department of human anatomy, School of Basic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Siming Wang
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wenbo Li
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiangjun Chen
- Nanjing Medical University, Nanjing, Jiangsu, China
- Department of human anatomy, School of Basic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Juan Wang
- Nanjing Medical University, Nanjing, Jiangsu, China
- Department of human anatomy, School of Basic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Sheng Chen
- The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, Jiangsu, China
| | - Yongjie Zhang
- Nanjing Medical University, Nanjing, Jiangsu, China.
- Department of human anatomy, School of Basic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Jun Gu
- The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, Jiangsu, China.
| | - Jin Fan
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
- Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Zhengshuai Jin
- The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, Jiangsu, China.
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
- Nanjing Medical University, Nanjing, Jiangsu, China.
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Tian L, Tan Z, Yang Y, Liu S, Yang Q, Tu Y, Chen J, Guan H, Fan L, Yu B, Chen X, Hu Y. In situ sprayed hydrogels containing resiquimod-loaded liposomes reduce chronic osteomyelitis recurrence by intracellular bacteria clearance. Acta Biomater 2023; 169:209-227. [PMID: 37516419 DOI: 10.1016/j.actbio.2023.07.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/19/2023] [Accepted: 07/24/2023] [Indexed: 07/31/2023]
Abstract
At present, surgical debridement and systematic administration of antibiotics represent the mainstay of treatment for chronic osteomyelitis. However, it is now understood that Staphylococcus aureus (S. aureus) can survive within excessively polarized M2 macrophages and evade antibiotics, accounting for the high recurrence of chronic osteomyelitis. Effective treatments for intracellular infection have rarely been reported. Herein, we designed an in situ sprayed liposomes hydrogels spray with macrophage-targeted effects and the ability to reverse polarization and eradicate intracellular bacteria to reduce the recurrence of osteomyelitis. Resiquimod (R848)-loaded and phosphatidylserine (PS)-coating nanoliposomes were introduced into fibrinogen and thrombin to form the PSL-R848@Fibrin spray. Characterization and phagocytosis experiments were performed to confirm the successful preparation of the PSL-R848@Fibrin spray. Meanwhile, in vitro cell experiments validated its ability to eliminate intracellular S. aureus by reprogramming macrophages from the M2 to the M1 phenotype. Additionally, we established a chronic osteomyelitis rat model to simulate the treatment and recurrence process. Histological analysis demonstrated a significant increase in M1 macrophages and the elimination of intracellular bacteria. Imaging revealed a significant decrease in osteomyelitis recurrence. Overall, the liposome hydrogels could target macrophages to promote antibacterial properties against intracellular infection and reduce the recurrence of chronic osteomyelitis, providing the foothold for improving the outcomes of this patient population. STATEMENT OF SIGNIFICANCE: Chronic osteomyelitis remains a high recurrence although undergoing traditional treatment of debridement and antibiotics. S. aureus can survive within the excessively polarized M2 macrophages to evade the effects of antibiotics. However, few studies have sought to investigate effective intracellular bacteria eradication. Herein, we designed a macrophage-targeted R848-containing liposomes fibrin hydrogels spray (PSL-R848@Fibrin) that can reprogram polarization of macrophages and eradicate intracellular bacteria for osteomyelitis treatment. With great properties of rapid gelation, strong adhesion, high flexibility and fit-to-shape capacity, the facile-operated immunotherapeutic in-situ-spray fibrin hydrogels exhibited huge promise of reversing polarization and fighting intracellular infections. Importantly, we revealed a hitherto undocumented treatment strategy for reducing the recurrence of chronic osteomyelitis and potentially improving the prognosis of chronic osteomyelitis patients.
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Affiliation(s)
- Liangjie Tian
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Zilin Tan
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Yusheng Yang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Shencai Liu
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Qingfeng Yang
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Yuesheng Tu
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Jialan Chen
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Hongye Guan
- Department of Orthopedic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong 528000, China
| | - Lei Fan
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Bin Yu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China.
| | - Xianhui Chen
- Department of Orthopedic Surgery, The First People's Hospital of Foshan, Foshan, Guangdong 528000, China.
| | - Yanjun Hu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China.
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Yan Y, Wang Z, Liu X, Han S, Li J, Zhang Y, Zhao L. Identification of brain endothelial cell-specific genes and pathways in ischemic stroke by integrated bioinformatical analysis. Brain Circ 2023; 9:228-239. [PMID: 38284111 PMCID: PMC10821689 DOI: 10.4103/bc.bc_40_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/30/2023] [Accepted: 09/08/2023] [Indexed: 01/30/2024] Open
Abstract
BACKGROUND Ischemic stroke (IS) is a life-threatening condition with limited treatment options; thus, finding the potential key genes for novel therapeutic targets is urgently needed. This study aimed to explore novel candidate genes and pathways of brain microvessel endothelial cells (ECs) in IS by bioinformatics analysis. MATERIALS AND METHODS The gene expression profiles of brain tissues or brain ECs in IS mice were downloaded from the online gene expression omnibus (GEO) to obtain the differentially expressed genes (DEGs) by R software. Functional enrichment analyses were used to cluster the functions and signaling pathways of the DEGs, while DEG-associated protein-protein interaction network was performed to identify hub genes. The target microRNAs and competitive endogenous RNA networks of key hub genes were constructed by Cytoscape. RESULTS Totally 84 DEGs were obtained from 6 brain tissue samples and 4 brain vascular EC samples both from IS mice in the datasets GSE74052 and GSE137482, with significant enrichment in immune responses, such as immune system processes and T-cell activation. Eight hub genes filtered by Cytoscape were validated by two other GEO datasets, wherein key genes of interest were verified by reverse transcription-polymerase chain reaction using an in vitro ischemic model of EC cultures. Our data indicated that AURKA and CENPF might be potential therapeutic target genes for IS, and Malat1/Snhg12/Xist-miR-297b-3p-CENPF, as well as Mir17 hg-miR-34b-3p-CENPF, might be RNA regulatory pathways to control IS progression. CONCLUSIONS Our work identified two brain EC-specific expressed genes in IS, namely, AURKA and CENPF, as potential gene targets for IS treatment. In addition, we presented miR-297b-3p/miR-34b-3p-CENPF as the potential RNA regulatory axes to prevent pathogenesis of IS.
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Affiliation(s)
- Yi Yan
- Department of Neurobiology, Capital Medical University, Beijing, China
| | - Zhaohui Wang
- Department of Neurobiology, Capital Medical University, Beijing, China
| | - Xiao Liu
- Department of Neurobiology, Capital Medical University, Beijing, China
| | - Song Han
- Department of Neurobiology, Capital Medical University, Beijing, China
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Junfa Li
- Department of Neurobiology, Capital Medical University, Beijing, China
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Ying Zhang
- Department of Neurobiology, Capital Medical University, Beijing, China
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Hypoxia Conditioning Translational Medicine, Beijing, China
| | - Li Zhao
- Department of Neurobiology, Capital Medical University, Beijing, China
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
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Wang Q, Yi J, Liu H, Luo M, Yin G, Huang Z. Iguratimod promotes functional recovery after SCI by repairing endothelial cell tight junctions. Exp Neurol 2023; 368:114503. [PMID: 37572946 DOI: 10.1016/j.expneurol.2023.114503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 07/31/2023] [Accepted: 08/09/2023] [Indexed: 08/14/2023]
Abstract
Destruction of the blood-spinal cord barrier (BSCB) after spinal cord injury (SCI) is an important factor promoting the progression of the injury. This study addressed how to repair the BSCB in order to promote the repair of injured spinal cords. Iguratimod (IGU), an anti-rheumatic drug, has been approved for clinical use. A spinal cord injury mouse model and TNF-α-stimulated bEnd.3 cells were used to investigate the effect and mechanism of IGU on injured BSCB. An intracerebroventricular osmotic pump was used to administer drugs to the SCI mouse model. The results showed that the SCI mice in the treatment group had better recovery of neurological function than the control group. Examination of the tissue revealed better repair of the BSCB in injured spinal cords after medication. According to the results from the cell model, IGU promoted the expression of tight junction proteins and reduced cell permeability. Further research found that IGU repaired the barrier function by regulating glycolysis levels in the injured endothelial cells. In studying the mechanism, IGU was found to regulate HIF-1α expression through the NF-κB pathway, thereby regulating the expression of the glycolytic enzymes related to endothelial injury. In summary, IGU promoted functional recovery in vivo by repairing the BSCB. In vitro, IGU regulated the level of glycolysis in the damaged endothelium through the NF-κB pathway, thereby repairing the tight junctions between the endothelium. Therefore, IGU may become a potential drug for treating spinal cord injury.
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Affiliation(s)
- Qian Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Jiang Yi
- Department of Orthopedics, Yancheng Third People's Hospital, Yancheng 224008, Jiangsu, China
| | - Hao Liu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Mingran Luo
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Guoyong Yin
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Zhenfei Huang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
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Xie Y, Sun Y, Liu Y, Zhao J, Liu Q, Xu J, Qin Y, He R, Yuan F, Wu T, Duan C, Jiang L, Lu H, Hu J. Targeted Delivery of RGD-CD146 +CD271 + Human Umbilical Cord Mesenchymal Stem Cell-Derived Exosomes Promotes Blood-Spinal Cord Barrier Repair after Spinal Cord Injury. ACS NANO 2023; 17:18008-18024. [PMID: 37695238 DOI: 10.1021/acsnano.3c04423] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Spinal cord injury (SCI) disrupts the blood-spinal cord barrier (BSCB), potentially exacerbating nerve damage and emphasizing the criticality of preserving the BSCB integrity during SCI treatment. This study explores an alternative therapeutic approach for SCI by identifying a subpopulation of exosomes with stable BSCB function and achieving a specific targeted delivery. Specific subpopulations of CD146+CD271+ umbilical cord mesenchymal stem cells (UCMSCs) were isolated, from which engineered exosomes (RGD-CD146+CD271+ UCMSC-Exos) with targeted neovascularization function were obtained through gene transfection. In vivo and in vitro experiments were performed to explore the targeting and therapeutic effects of RGD-CD146+CD271+ UCMSC-Exos and the potential mechanisms underlying BSCB stabilization and neural function recovery. The results demonstrated that RGD-CD146+CD271+ UCMSC-Exos exhibited physical and chemical properties similar to those of regular exosomes. Notably, following intranasal administration, RGD-CD146+CD271+ UCMSC-Exos exhibited enhanced aggregation at the SCI center and demonstrated the specific targeting of neovascular endothelial cells. In the SCI model, intranasal administration of RGD-CD146+CD271+ UCMSC-Exos reduced Evans blue dye leakage, increased tight junction protein expression, and improved neurological function recovery. In vitro testing revealed that RGD-CD146+CD271+ UCMSC-Exos treatment significantly reduced the permeability of bEnd.3 cells subjected to oxygen-glucose deprivation, thereby restoring the integrity of tight junctions. Moreover, further exploration of the molecular mechanism underlying BSCB stabilization by CD146+CD271+ UCMSC-Exos identified the crucial role of the miR-501-5p/MLCK axis in this process. In conclusion, targeted delivery of RGD-CD146+CD271+ UCMSC-Exos presents a promising and effective treatment option for SCI.
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Affiliation(s)
- Yong Xie
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Yi Sun
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Yudong Liu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Jinyun Zhao
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Quanbo Liu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Jiaqi Xu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Yiming Qin
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Rundong He
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Feifei Yuan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Tianding Wu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Chunyue Duan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Liyuan Jiang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Hongbin Lu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Jianzhong Hu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
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Liu Y, Zhong Y, Zheng B, Liu Y. Extracellular vesicles derived from M1 macrophages enhance rat midpalatal suture expansion by promoting initial bone turnover and inflammation. Prog Orthod 2023; 24:34. [PMID: 37661233 PMCID: PMC10475451 DOI: 10.1186/s40510-023-00477-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 05/18/2023] [Indexed: 09/05/2023] Open
Abstract
BACKGROUND Midpalatal suture (MPS) expansion can be affected by many factors, and researchers have attempted to regulate the initial inflammatory stage of expansion to optimize clinical outcomes and their underlying mechanisms. This study aimed to investigate the potential effects and mechanisms of M1 macrophage small extracellular vesicles during rat MPS expansion. MATERIALS AND METHODS RAW264.7 cells were induced to M1 or M2 polarization and, small extracellular vesicles were isolated from the polarized macrophages. Male Sprague-Dawley rats (6-7 weeks) were administered 70 ± 5 g expansion force devices for 7 days. Rats with expanders without force served as controls. M1/M2 small extracellular vesicles were injected into the MPS region (50 µg/day) in the M1 and M2 small extracellular vesicle-assisted groups, while 0.9% saline was injected into the expansion-only group. Suture width, bone mass, and morphological changes in the region of interest (ROI) were examined. RESULTS The M1 small extracellular vesicle-assisted group showed a significantly increased MPS suture width in vivo (P < 0.001), and less bone mass was observed in the ROI (P < 0.05). Histological examination showed that the M1 small extracellular vesicle-assisted group exhibited a wider palatal area and obvious fibrous tissue rearrangement. The expression of RANKL and the number of osteoclasts were increased (P < 0.01) in the bony edges, and the p65 protein expression was significantly higher (P < 0.001). CONCLUSIONS M1 macrophage-derived small extracellular vesicles have a positive effect in MPS expansion and increase p65 protein content and RANKL expression, thus promoting bone turnover. This study may contribute to the clinical application of small extracellular vesicles in the expansion of the palatal suture.
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Affiliation(s)
- Yi Liu
- Department of Orthodontics, School and Hospital of Stomatology, Liaoning Provincial Key Laboratory of Oral Disease, China Medical University, Shenyang, 110002, China
| | - Yuan Zhong
- Department of Orthodontics, School and Hospital of Stomatology, Liaoning Provincial Key Laboratory of Oral Disease, China Medical University, Shenyang, 110002, China
| | - Bowen Zheng
- Department of Orthodontics, School and Hospital of Stomatology, Liaoning Provincial Key Laboratory of Oral Disease, China Medical University, Shenyang, 110002, China.
| | - Yi Liu
- Department of Orthodontics, School and Hospital of Stomatology, Liaoning Provincial Key Laboratory of Oral Disease, China Medical University, Shenyang, 110002, China.
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Wang X, Yang Y, Li W, Hao M, Xu Y. Umbilical mesenchymal stem cell-derived exosomes promote spinal cord functional recovery through the miR-146b/TLR4 -mediated NF-κB p65 signaling pathway in rats. Biochem Biophys Rep 2023; 35:101497. [PMID: 37534324 PMCID: PMC10393557 DOI: 10.1016/j.bbrep.2023.101497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 06/01/2023] [Accepted: 06/05/2023] [Indexed: 08/04/2023] Open
Abstract
Spinal cord injury (SCI) is an incurable central nervous system impairment that lack of efficient treatment. Exosomes derived from mesenchymal stem cells (MSCs) are widely applied in disease treatment. This work aimed to determine the promising therapeutic effects of MSC-derived exosomal miRNA146b on SCI. A rat spinal cord injury (SCI) model and lipopolysaccharide (LPS)-induced PC12 cell model were established. Exosomes were extracted from human umbilical cord mesenchymal stem cells (hUCMSCs). The identification of exosomes was performed by using transmission electronic microscope (TEM) and nanoparticle tracking analysis (NTA). Hematoxylin and eosin (HE) staining and TUNEL assay were performed to assess tissue damage and apoptosis, respectively. ELISA was performed to detect levels of inflammatory cytokines. Cell viability was checked by cell counting kit 8 (CCK-8). Gene expression and protein levels were detected by qPCR and western blotting assay. The interaction between miR-146 b and Toll-like receptor 4 (TLR4) was assessed by luciferase reporter gene assay. The hUCMSC-derived exosomes could notably alleviate the spinal cord injury and cell apoptosis. The exosomal miR-146 b treatment suppressed the release of IL-1 β, IL-6, and TNFα. The miR-146 b suppressed the expression of TLR4, directly interact with the 3'-untranslated region (3'UTR) of TLR4, and inactivated the nuclear factor κB (NF-κB) signaling. The hUCMSCs-derived exosomal miR-146 b protects neurons from spinal cord injury through targeting the TLR4 and inactivating the NF-κB signaling. Our findings supported the application of hUCMSCs-derived exosomal miR-146 b for the protection of SCI.
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Peng W, Xie Y, Liu Y, Xu J, Yuan F, Li C, Qin T, Lu H, Duan C, Hu J. Targeted delivery of CD163 + macrophage-derived small extracellular vesicles via RGD peptides promote vascular regeneration and stabilization after spinal cord injury. J Control Release 2023; 361:750-765. [PMID: 37586563 DOI: 10.1016/j.jconrel.2023.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 08/08/2023] [Accepted: 08/11/2023] [Indexed: 08/18/2023]
Abstract
Targeted delivery of small extracellular vesicles (sEVs) with low immunogenicity and fewer undesirable side effects are needed for spinal cord injury (SCI) therapy. Here, we show that RGD (Arg-Gly-Asp) peptide-decorated CD163+ macrophage-derived sEVs can deliver TGF-β to the neovascular endothelial cells of the injured site and improve neurological function after SCI. CD163+ macrophages are M2 macrophages that express TGF-β and are reported to promote angiogenesis and vascular stabilization in various diseases. Enriched TGF-β EVs were crucial in angiogenesis and tissue repair. However, TGF-β also boosts the formation of fibrous or glial scars, detrimental to neurological recovery. Our results found RGD-modified CD163+ sEVs accumulated in the injured region and were taken up by neovascular endothelial cells. Furthermore, RGD-CD163+ sEVs promoted vascular regeneration and stabilization in vitro and in vivo, resulting in substantial functional recovery post-SCI. These data suggest that RGD-CD163+ sEVs may be a potential strategy for treating SCI.
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Affiliation(s)
- Wei Peng
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; Department of Spine Surgery, Wuxi 9th Affiliated Hospital of Soochow University, Wuxi, China
| | - Yong Xie
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yudong Liu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jiaqi Xu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Feifei Yuan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Chengjun Li
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Tian Qin
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Hongbin Lu
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Chunyue Duan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| | - Jianzhong Hu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
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Shu J, Wang C, Tao Y, Wang S, Cheng F, Zhang Y, Shi K, Xia K, Wang R, Wang J, Yu C, Chen J, Huang X, Xu H, Zhou X, Wu H, Liang C, Chen Q, Yan S, Li F. Thermosensitive hydrogel-based GPR124 delivery strategy for rebuilding blood-spinal cord barrier. Bioeng Transl Med 2023; 8:e10561. [PMID: 37693060 PMCID: PMC10486335 DOI: 10.1002/btm2.10561] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 05/20/2023] [Accepted: 05/25/2023] [Indexed: 09/12/2023] Open
Abstract
Spinal cord injury (SCI) causes blood-spinal cord barrier (BSCB) disruption, leading to secondary damage, such as hemorrhagic infiltration, inflammatory response, and neuronal cell death. It is of great significance to rebuild the BSCB at the early stage of SCI to alleviate the secondary injury for better prognosis. Yet, current research involved in the reconstruction of BSCB is insufficient. Accordingly, we provide a thermosensitive hydrogel-based G protein-coupled receptor 124 (GPR124) delivery strategy for rebuilding BSCB. Herein, we firstly found that the expression of GPR124 decreased post-SCI and demonstrated that treatment with recombinant GPR124 could partially alleviate the disruption of BSCB post-SCI by restoring tight junctions (TJs) and promoting migration and tube formation of endothelial cells. Interestingly, GPR124 could also boost the energy metabolism of endothelial cells. However, the absence of physicochemical stability restricted the wide usage of GPR124. Hence, we fabricated a thermosensitive heparin-poloxamer (HP) hydrogel that demonstrated sustained GPR124 production and maintained the bioactivity of GPR124 (HP@124) for rebuilding the BSCB and eventually enhancing functional motor recovery post-SCI. HP@124 hydrogel can encapsulate GPR124 at the lesion site by injection, providing prolonged release, preserving wounded tissues, and filling injured tissue cavities. Consequently, it induces synergistically efficient integrated regulation by blocking BSCB rupture, decreasing fibrotic scar formation, minimizing inflammatory response, boosting remyelination, and regenerating axons. Mechanistically, giving GPR124 activates energy metabolism via elevating the expression of phosphoenolpyruvate carboxykinase 2 (PCK2), and eventually restores the poor state of endothelial cells. This research demonstrated that early intervention by combining GPR124 with bioactive multifunctional hydrogel may have tremendous promise for restoring locomotor recovery in patients with central nervous system disorders, in addition to a translational approach for the medical therapy of SCI.
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Affiliation(s)
- Jiawei Shu
- International Institutes of MedicineThe Fourth Affiliated Hospital, Zhejiang University School of MedicineYiwuZhejiangPeople's Republic of China
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Chenggui Wang
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhouZhejiangPeople's Republic of China
| | - Yiqing Tao
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Shaoke Wang
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Feng Cheng
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Yuang Zhang
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Kesi Shi
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Kaishun Xia
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Ronghao Wang
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Jingkai Wang
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Chao Yu
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Jiangjie Chen
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Xianpeng Huang
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Haibin Xu
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Xiaopeng Zhou
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Haobo Wu
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Chengzhen Liang
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Qixin Chen
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Shigui Yan
- International Institutes of MedicineThe Fourth Affiliated Hospital, Zhejiang University School of MedicineYiwuZhejiangPeople's Republic of China
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
| | - Fangcai Li
- Department of Orthopedics SurgeryThe Second Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Orthopedics Research Institute of Zhejiang University, Zhejiang UniversityHangzhouZhejiangPeople's Republic of China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhouZhejiangPeople's Republic of China
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Zhiguo F, Ji W, Shenyuan C, Guoyou Z, Chen K, Hui Q, Wenrong X, Zhai X. A swift expanding trend of extracellular vesicles in spinal cord injury research: a bibliometric analysis. J Nanobiotechnology 2023; 21:289. [PMID: 37612689 PMCID: PMC10463993 DOI: 10.1186/s12951-023-02051-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 08/04/2023] [Indexed: 08/25/2023] Open
Abstract
Extracellular vesicles (EVs) in the field of spinal cord injury (SCI) have garnered significant attention for their potential applications in diagnosis and therapy. However, no bibliometric assessment has been conducted to evaluate the scientific progress in this area. A search of articles in Web of Science (WoS) from January 1, 1991, to May 1, 2023, yielded 359 papers that were analyzed using various online analysis tools. These articles have been cited 10,842 times with 30.2 times per paper. The number of publications experienced explosive growth starting in 2015. China and the United States led this research initiative. Keywords were divided into 3 clusters, including "Pathophysiology of SCI", "Bioactive components of EVs", and "Therapeutic effects of EVs in SCI". By integrating the average appearing year (AAY) of keywords in VoSviewer with the time zone map of the Citation Explosion in CiteSpace, the focal point of research has undergone a transformative shift. The emphasis has moved away from pathophysiological factors such as "axon", "vesicle", and "glial cell" to more mechanistic and applied domains such as "activation", "pathways", "hydrogels" and "therapy". In conclusions, institutions are expected to allocate more resources towards EVs-loaded hydrogel therapy and the utilization of innovative materials for injury mitigation.
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Affiliation(s)
- Fan Zhiguo
- Department of Orthopedics, Shanghai Changhai Hospital, Shanghai, 200433, China
| | - Wu Ji
- Department of Orthopedics, Shanghai Changhai Hospital, Shanghai, 200433, China
| | - Chen Shenyuan
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Zhang Guoyou
- Department of Orthopedics, Shanghai Changhai Hospital, Shanghai, 200433, China
| | - Kai Chen
- Department of Orthopedics, Shanghai Changhai Hospital, Shanghai, 200433, China.
| | - Qian Hui
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China.
| | - Xu Wenrong
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China.
| | - Xiao Zhai
- Department of Orthopedics, Shanghai Changhai Hospital, Shanghai, 200433, China.
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Chen X, Ji Y, Liu R, Zhu X, Wang K, Yang X, Liu B, Gao Z, Huang Y, Shen Y, Liu H, Sun H. Mitochondrial dysfunction: roles in skeletal muscle atrophy. J Transl Med 2023; 21:503. [PMID: 37495991 PMCID: PMC10373380 DOI: 10.1186/s12967-023-04369-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 07/18/2023] [Indexed: 07/28/2023] Open
Abstract
Mitochondria play important roles in maintaining cellular homeostasis and skeletal muscle health, and damage to mitochondria can lead to a series of pathophysiological changes. Mitochondrial dysfunction can lead to skeletal muscle atrophy, and its molecular mechanism leading to skeletal muscle atrophy is complex. Understanding the pathogenesis of mitochondrial dysfunction is useful for the prevention and treatment of skeletal muscle atrophy, and finding drugs and methods to target and modulate mitochondrial function are urgent tasks in the prevention and treatment of skeletal muscle atrophy. In this review, we first discussed the roles of normal mitochondria in skeletal muscle. Importantly, we described the effect of mitochondrial dysfunction on skeletal muscle atrophy and the molecular mechanisms involved. Furthermore, the regulatory roles of different signaling pathways (AMPK-SIRT1-PGC-1α, IGF-1-PI3K-Akt-mTOR, FoxOs, JAK-STAT3, TGF-β-Smad2/3 and NF-κB pathways, etc.) and the roles of mitochondrial factors were investigated in mitochondrial dysfunction. Next, we analyzed the manifestations of mitochondrial dysfunction in muscle atrophy caused by different diseases. Finally, we summarized the preventive and therapeutic effects of targeted regulation of mitochondrial function on skeletal muscle atrophy, including drug therapy, exercise and diet, gene therapy, stem cell therapy and physical therapy. This review is of great significance for the holistic understanding of the important role of mitochondria in skeletal muscle, which is helpful for researchers to further understanding the molecular regulatory mechanism of skeletal muscle atrophy, and has an important inspiring role for the development of therapeutic strategies for muscle atrophy targeting mitochondria in the future.
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Affiliation(s)
- Xin Chen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Yanan Ji
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Ruiqi Liu
- Department of Clinical Medicine, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Xucheng Zhu
- Department of Clinical Medicine, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Kexin Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Xiaoming Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Boya Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Zihui Gao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Yan Huang
- Department of Clinical Medicine, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Yuntian Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
| | - Hua Liu
- Department of Orthopedics, Haian Hospital of Traditional Chinese Medicine, 55 Ninghai Middle Road, Nantong, Jiangsu, 226600, People's Republic of China.
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Department of Neurology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
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Xu J, Ding Y, Shi C, Yuan F, Sheng X, Liu Y, Xie Y, Lu H, Duan C, Hu J, Jiang L. Identification of Cathepsin B as a Therapeutic Target for Ferroptosis of Macrophage after Spinal Cord Injury. Aging Dis 2023; 15:AD.2023.0509. [PMID: 37307830 PMCID: PMC10796092 DOI: 10.14336/ad.2023.0509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 05/09/2023] [Indexed: 06/14/2023] Open
Abstract
Hemorrhage and immune cell infiltration are the main pathological features of spinal cord injury (SCI). Excessive iron deposition is caused by leaking hemosiderin which may over-activate ferroptosis pathways, resulting in lipid peroxidation and mitochondrial dysfunction in cells. Inhibiting ferroptosis after SCI has been shown to aid functional recovery. However, the essential genes involved in cellular ferroptosis following SCI are still unknown. Here we show that Ctsb is a statistical significance gene by collecting multiple transcriptomic profiles and identifying differentially expressed ferroptosis-related genes, which are abundantly expressed in myeloid cells after SCI and widely distributed at the epicenter of the injury. The expression score of ferroptosis, calculated by ferroptosis driver/suppressor genes, was high in macrophages. Furthermore, we discovered that inhibiting cathepsin B (CTSB), specifically with a small-molecule drug, CA-074-methyl ester (CA-074-me), reduced lipid peroxidation and mitochondrial dysfunction in macrophages. We also found that alternatively activated M2-polarized macrophages are more susceptible to hemin-induced ferroptosis. Consequently, CA-074-me could reduce ferroptosis, induce M2 macrophage polarization, and promote the neurological function recovery of mice after SCI. Our study comprehensively analyzed the ferroptosis after SCI from the perspective of multiple transcriptomes and provided a novel molecular target for SCI treatment.
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Affiliation(s)
- Jiaqi Xu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
| | - Yinghe Ding
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
| | - Chaoran Shi
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
| | - Feifei Yuan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
| | - Xiaolong Sheng
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
| | - Yudong Liu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
| | - Yong Xie
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
| | - Hongbin Lu
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
| | - Chunyue Duan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
| | - Jianzhong Hu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
| | - Liyuan Jiang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, Hunan Province, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan Province, China.
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Rong Y, Wang Z, Tang P, Wang J, Ji C, Chang J, Zhu Y, Ye W, Bai J, Liu W, Yin G, Yu L, Zhou X, Cai W. Engineered extracellular vesicles for delivery of siRNA promoting targeted repair of traumatic spinal cord injury. Bioact Mater 2023; 23:328-342. [PMID: 36474657 PMCID: PMC9706413 DOI: 10.1016/j.bioactmat.2022.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 10/26/2022] [Accepted: 11/16/2022] [Indexed: 11/26/2022] Open
Abstract
Spinal cord injury (SCI) is a severe disease of the nervous system that causes irreparable damage and loss of function, for which no effective treatments are available to date. Engineered extracellular vesicles (EVs) carrying therapeutic molecules hold promise as an alternative SCI therapy depending on the specific functionalized EVs and the appropriate engineering strategy. In this study, we demonstrated the design of a drug delivery system of peptide CAQK-modified, siRNA-loaded EVs (C-EVs-siRNA) for SCI-targeted therapy. The peptide CAQK was anchored through a chemical modification to the membranes of EVs isolated from induced neural stem cells (iNSCs). CCL2-siRNA was then loaded into the EVs through electroporation. The modified EVs still maintained the basic properties of EVs and showed favorable targeting and therapeutic effects in vitro and in vivo. C-EVs-siRNA specifically delivered siRNA to the SCI region and was taken up by target cells. C-EVs-siRNA used the inherent anti-inflammatory and neuroreparative functions of iNSCs-derived EVs in synergy with the loaded siRNA, thus enhancing the therapeutic effect against SCI. The combination of targeted modified EVs and siRNA effectively regulated the microenvironmental disturbance after SCI, promoted the transformation of microglia/macrophages from M1 to M2 and limited the negative effects of the inflammatory response and neuronal injury on functional recovery in mice after SCI. Thus, engineered EVs are a potentially feasible and efficacious treatment for SCI, and may also be used to develop targeted treatments for other diseases.
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Affiliation(s)
- Yuluo Rong
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhuanghui Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Pengyu Tang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jiaxing Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Chengyue Ji
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jie Chang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yufeng Zhu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Wu Ye
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jianling Bai
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Wei Liu
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Guoyong Yin
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Lipeng Yu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Xuhui Zhou
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
- Department of Orthopedics, Shanghai General Hospital (Shanghai First People's Hospital), Shanghai Jiao Tong University, Shanghai, 200003, China
| | - Weihua Cai
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
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Pan X, Yang L, Wang S, Liu Y, Yue L, Chen S. Semaglutide alleviates inflammation-Induced endothelial progenitor cells injury by inhibiting MiR-155 expression in macrophage exosomes. Int Immunopharmacol 2023; 119:110196. [PMID: 37075674 DOI: 10.1016/j.intimp.2023.110196] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/07/2023] [Accepted: 04/11/2023] [Indexed: 04/21/2023]
Abstract
The low-grade inflammatory state in obesity can damage vascular endothelial cells and lead to several cardiovascular diseases. Macrophage exosomes improve glucose tolerance and insulin sensitivity in obese mice, and yet it is unclear how it relates to endothelial cell injury. Firstly, lipopolysaccharide (LPS)-induced macrophage exosomes were co-cultured with endothelial progenitor cells (EPCs) to examine the function of EPCs and the level of inflammatory factors. Secondly, macrophages were transfected with MicroRNA-155 (miR-155) miR-155 mimics and inhibitors, and their secreted exosomes were co-cultured with EPCs to detect EPCs function and inflammatory factor levels. Then, EPCs were transfected with miR-155 mimics and inhibitors to clarify the effect of miR-155 on EPCs function and inflammatory factors. Finally, macrophages were intervened using semaglutide, and their secreted exosomes were co-cultured with EPCs to test EPCs function, inflammatory factor levels and macrophages miR-155 expression. LPS-induced macrophage exosomes reduced the cellular activity, migratory capacity and tube-forming ability of EPCs and rendered EPCs in an inflammatory state. LPS-induced microphage exosomes significantly upregulated miR-155 expression. miR-155 high expression exacerbated the pro-inflammatory nature of macrophage exosomes and inhibited the cell viability of EPCs. In contrast, inhibition of miR-155 expression showed the opposite result, suppressing inflammation and increasing the cell viability of EPCs. Semaglutide improved the cell viability of EPCs and also inhibited the expression of inflammatory factors in EPCs as well as miR-155 in exosomes. Semaglutide improves the function and inflammatory status of EPCs may via inhibition of LPS-induced macrophage expression of miR-155 in exosomes.
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Affiliation(s)
- Xiaoyu Pan
- Department of Internal Medicine, Hebei Medical University, Shijiazhuang, China; Department of Endocrinology, Hebei General Hospital, Shijiazhuang, China
| | - Lin Yang
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, China
| | - Shuqi Wang
- Department of Internal Medicine, Hebei Medical University, Shijiazhuang, China; Department of Endocrinology, Hebei General Hospital, Shijiazhuang, China
| | - Yanhui Liu
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, China
| | - Lin Yue
- Department of Endocrinology, The Third Hospital of Shijiazhuang, Shijiazhuang, China
| | - Shuchun Chen
- Department of Internal Medicine, Hebei Medical University, Shijiazhuang, China; Department of Endocrinology, Hebei General Hospital, Shijiazhuang, China.
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Pinos I, Yu J, Pilli N, Kane MA, Amengual J. Functional characterization of interleukin 4 and retinoic acid signaling crosstalk during alternative macrophage activation. Biochim Biophys Acta Mol Cell Biol Lipids 2023; 1868:159291. [PMID: 36754230 PMCID: PMC9974901 DOI: 10.1016/j.bbalip.2023.159291] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/25/2023] [Accepted: 01/28/2023] [Indexed: 02/09/2023]
Abstract
Retinoic acid possesses potent immunomodulatory properties in various cell types, including macrophages. In this study, we first investigated the effects at the transcriptional and functional levels of exogenous retinoic acid in murine bone marrow-derived macrophages (BMDMs) in the presence or absence of interleukin 4 (IL4), a cytokine with potent anti-inflammatory properties. We examined the effect of IL4 on vitamin A homeostasis in macrophages by quantifying retinoid synthesis and secretion. Our RNAseq data show that exogenous retinoic acid synergizes with IL4 to regulate anti-inflammatory pathways such as oxidative phosphorylation and phagocytosis. Efferocytosis and lysosomal degradation assays validated gene expression changes at the functional level. IL4 treatment altered the expression of several genes involved in vitamin A transport and conversion to retinoic acid. Radiolabeling experiments and mass spectrometry assays revealed that IL4 stimulates retinoic acid production and secretion in a signal transducer and activator of transcription 6 (STAT6)-dependent manner. In summary, our studies highlight the key role of exogenous and endogenous retinoic acid in shaping the anti-inflammatory response of macrophages.
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Affiliation(s)
- Ivan Pinos
- Division of Nutritional Sciences, University of Illinois Urbana Champaign, Urbana, IL, United States
| | - Jianshi Yu
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, United States
| | - Nageswara Pilli
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, United States
| | - Maureen A Kane
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, United States
| | - Jaume Amengual
- Division of Nutritional Sciences, University of Illinois Urbana Champaign, Urbana, IL, United States; Department of Food Science and Human Nutrition, University of Illinois Urbana Champaign, Urbana, IL, United States.
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Sha W, Zhao B, Wei H, Yang Y, Yin H, Gao J, Zhao W, Kong W, Ge G, Lei T. Astragalus polysaccharide ameliorates vascular endothelial dysfunction by stimulating macrophage M2 polarization via potentiating Nrf2/HO-1 signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 112:154667. [PMID: 36842218 DOI: 10.1016/j.phymed.2023.154667] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 12/28/2022] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Oxidative stress and chronic non-infectious inflammation caused vascular endothelial dysfunction (VED) is a critical and initiating factor in Type 2 diabetes induced vascular complications, while macrophage polarization plays a regulatory role in VED. Astragalus polysaccharide (APS) has been widely used for treating diabetic vascular diseases, but its mechanisms of action have not been fully elucidated. PURPOSE This study aimed to investigate the modulatory effects of APS on macrophage polarization and to reveal the potential mechanisms of APS in LPS and HG stimulated macrophages and diabetic model rats. METHODS In vitro and in vivo studies were used to explore the mechanism of APS. The macrophage polarization and reactive oxygen species (ROS) release was monitored by flow cytometry and the associated inflammatory factors were detected by ELISA. For oxidative stress regulatory pathway detection, protein expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and Heme oxygenase-1 (HO-1) was measured by Western blotting. The vascular endothelial functions were measured by transwell, tube formation assay, scratch assay, adhesion assay. The thoracic aorta pathological changes were evaluated by Haematoxylin-eosin and immunohistochemistry. RESULTS In vitro, APS inhibited the LPS/HG-stimulated THP-1 macrophage differentiated into macrophage M1, coupling with reduction in the ROS production and pro-inflammatory factors (TNF-α, IL-6, IL-12) release. Furthermore, endothelial cells proliferation and apoptosis were ameliorated after APS treatment. Meanwhile, APS-treated THP-1/macrophage occurred a differentiation into M2 polarization and anti-inflammatory factors (IL-4, IL-10, and Arg-1) release via enhancing Nrf2/HO-1 signaling pathway, which could be disturbed by using siNrf2. APS promoted the migration and angiogenesis of endothelial cells in co-cultured of HUVECs and macrophages under high glucose. Finally, similar results were observed in vivo, APS alleviated thoracic aorta complications of diabetic rats accompanied by a remarkable reduction in inflammation and an increased in the number of anti-inflammatory macrophage polarization. CONCLUSION Our results demonstrated that APS ameliorated vascular endothelial dysfunction in diabetes by stimulating macrophage polarization to M2 via enhancing the Nrf2/HO-1 pathway.
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Affiliation(s)
- Wenjun Sha
- Department of Endocrinology and Metabolism, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Bei Zhao
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Huizhen Wei
- Department of Endocrinology and Metabolism, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Yunyi Yang
- Department of Endocrinology and Metabolism, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Hongping Yin
- Department of Endocrinology and Metabolism, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Jie Gao
- Department of Endocrinology and Metabolism, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Weiwei Zhao
- Department of Endocrinology and Metabolism, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Wenwen Kong
- Shanghai Putuo Central School of Clinical Medicine, Anhui Medical University, Shanghai, 200062, China
| | - Guangbo Ge
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China.
| | - Tao Lei
- Department of Endocrinology and Metabolism, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China.
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Jiang T, Qin T, Gao P, Tao Z, Wang X, Wu M, Gu J, Chu B, Zheng Z, Yi J, Xu T, Huang Y, Liu H, Zhao S, Ren Y, Chen J, Yin G. SIRT1 attenuates blood-spinal cord barrier disruption after spinal cord injury by deacetylating p66Shc. Redox Biol 2023; 60:102615. [PMID: 36716673 PMCID: PMC9900454 DOI: 10.1016/j.redox.2023.102615] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/12/2023] [Accepted: 01/23/2023] [Indexed: 01/26/2023] Open
Abstract
Disruption of the blood-spinal cord barrier (BSCB) leads to inflammatory cell infiltration and neural cell death, thus, contributing to poor functional recovery after spinal cord injury (SCI). Previous studies have suggested that Sirtuin 1 (SIRT1), an NAD+-dependent class III histone deacetylase, is abundantly expressed in endothelial cells and promotes endothelial homeostasis. However, the role of SIRT1 in BSCB function after SCI remains poorly defined. Here, we report that SIRT1 is highly expressed in spinal cord endothelial cells, and its expression significantly decreases after SCI. Using endothelial cell-specific SIRT1 knockout mice, we observed that endothelial cell-specific knockout of SIRT1 aggravated BSCB disruption, thus, resulting in widespread inflammation, neural cell death and poor functional recovery after SCI. In contrast, activation of SIRT1 by the agonist SRT1720 had beneficial effects. In vitro, knockdown of SIRT1 exacerbated IL-1β-induced endothelial barrier disruption in bEnd.3 cells, whereas overexpression of SIRT1 was protective. Using RNA-seq and IP/MS analysis, we identified p66Shc, a redox protein, as the potential target of SIRT1. Further studies demonstrated that SIRT1 interacts with and deacetylates p66Shc, thereby attenuating oxidative stress and protecting endothelial barrier function. Overall, our results indicate that SIRT1 decreases endothelial ROS production and attenuates BSCB disruption by deacetylating p66Shc after SCI, and suggest that SIRT1 activation has potential as a therapeutic approach to promote functional recovery against BSCB disruption following SCI.
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Affiliation(s)
- Tao Jiang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Tao Qin
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Peng Gao
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhiwen Tao
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Xiaowei Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Mengyuan Wu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jun Gu
- Department of Orthopedics, Xishan People's Hospital, Wuxi, 214000, Jiangsu, China
| | - Bo Chu
- Department of Orthopedics, Xishan People's Hospital, Wuxi, 214000, Jiangsu, China
| | - Ziyang Zheng
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jiang Yi
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Tao Xu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yifan Huang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Hao Liu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Shujie Zhao
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Yongxin Ren
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Jian Chen
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Guoyong Yin
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
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Ge X, Zhou Z, Yang S, Ye W, Wang Z, Wang J, Xiao C, Cui M, Zhou J, Zhu Y, Wang R, Gao Y, Wang H, Tang P, Zhou X, Wang C, Cai W. Exosomal USP13 derived from microvascular endothelial cells regulates immune microenvironment and improves functional recovery after spinal cord injury by stabilizing IκBα. Cell Biosci 2023; 13:55. [PMID: 36915206 PMCID: PMC10012460 DOI: 10.1186/s13578-023-01011-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
Spinal cord injury (SCI) can result in irreversible sensory and motor disability with no effective treatment currently. After SCI, infiltrated macrophages accumulate in epicenter through destructed blood-spinal cord barrier (BSCB). Further, great majority of macrophages are preferentially polarized to M1 phenotype, with only a few transient M2 phenotype. The purpose of this study was to explore roles of vascular endothelial cells in microglia/macrophages polarization and the underlying mechanism. Lipopolysaccharide (LPS) was used to pretreat BV2 microglia and RAW264.7 macrophages followed by administration of conditioned medium from microvascular endothelial cell line bEnd.3 cells (ECM). Analyses were then performed to determine the effects of exosomes on microglia/macrophages polarization and mitochondrial function. The findings demonstrated that administration of ECM shifted microglia/macrophages towards M2 polarization, ameliorated mitochondrial impairment, and reduced reactive oxygen species (ROS) production in vitro. Notably, administration of GW4869, an exosomal secretion inhibitor, significantly reversed these observed benefits. Further results revealed that exosomes derived from bEnd.3 cells (Exos) promote motor rehabilitation and M2 polarization of microglia/macrophages in vivo. Ubiquitin-specific protease 13 (USP13) was shown to be significantly enriched in BV2 microglia treated with Exos. USP13 binds to, deubiquitinates and stabilizes the NF-κB inhibitor alpha (IκBα), thus regulating microglia/macrophages polarization. Administration of the selective IκBα inhibitor betulinic acid (BA) inhibited the beneficial effect of Exos in vivo. These findings uncovered the potential mechanism underlying the communications between vascular endothelial cells and microglia/macrophages after SCI. In addition, this study indicates exosomes might be a promising therapeutic strategy for SCI treatment.
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Affiliation(s)
- Xuhui Ge
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zheng Zhou
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Siting Yang
- Department of Anesthesiology and Nursing, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Wu Ye
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhuanghui Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jiaxing Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Chenyu Xiao
- Department of Human Anatomy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Min Cui
- Department of Human Anatomy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Jiawen Zhou
- Department of Pharmacology, China Pharmaceutical University, Nanjing, 211198, China
| | - Yufeng Zhu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Rixiao Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yu Gao
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Haofan Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Pengyu Tang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Xuhui Zhou
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Ce Wang
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China.
| | - Weihua Cai
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
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Ma C, Wang C, Zhang Y, Li Y, Fu K, Gong L, Zhou H, Li Y. Phillygenin inhibited M1 macrophage polarization and reduced hepatic stellate cell activation by inhibiting macrophage exosomal miR-125b-5p. Biomed Pharmacother 2023; 159:114264. [PMID: 36652738 DOI: 10.1016/j.biopha.2023.114264] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/13/2023] [Accepted: 01/14/2023] [Indexed: 01/18/2023] Open
Abstract
Liver fibrosis (LF) is an important stage in chronic liver disease development, characterized by hepatic stellate cell (HSC) activation and excessive extracellular matrix deposition. Phillygenin (PHI), an active component in the traditional Chinese medicine Forsythiae Fructus with a significant anti-inflammatory effect, has been proved to inhibit HSC activation. Macrophages can polarize to pro-inflammatory M1 phenotype and anti-inflammatory M2 phenotype, participating in LF development. Currently, Forsythiae Fructus and its many components have been proved to inhibit the inflammatory activation of macrophages. However, there is no direct evidence that PHI can regulate macrophage polarization, and the relationship between macrophage polarization and the anti-LF effect of PHI has not been studied. In this study, we found that PHI inhibited the co-expression of CD80 and CD86, and inhibited the mRNA expression and protein secretion of related inflammatory cytokines in RAW264.7 cells. For mechanism, PHI was found to inhibit the JAK1/JAK2-STAT1 and Notch1 signaling pathways. Subsequently, mHSCs were co-cultured with the conditioned media or exosomes from macrophages with different treatments. It was found that the conditioned media and exosomes from PHI-treated macrophages inhibited the expression of MMP2, TIMP1, TGF-β, α-SMA, COL1 and NF-κB in mHSCs. Moreover, through bioinformatic analysis and cell transfection, we confirmed that PHI reduced HSC activation by inhibiting the overexpression of miR-125b-5p in M1 macrophage-derived exosomes and restoring Stard13 expression in mHSCs. On the whole, PHI could inhibit M1 macrophage polarization by suppressing the JAK1/JAK2-STAT1 and Notch1 signaling pathways, and reduce HSC activation by inhibiting macrophage exosomal miR-125b-5p targeting Stard13. DATA AVAILABILITY: The raw data supporting the conclusions of this study are available in the article/Supplementary figures, and can be obtained from the first or corresponding author.
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Affiliation(s)
- Cheng Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Cheng Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yafang Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yanzhi Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Ke Fu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Lihong Gong
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Honglin Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yunxia Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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