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Wang Z, Zhou W, Zhang Z, Zhang L, Li M. Metformin alleviates spinal cord injury by inhibiting nerve cell ferroptosis through upregulation of heme oxygenase-1 expression. Neural Regen Res 2024; 19:2041-2049. [PMID: 38227534 DOI: 10.4103/1673-5374.390960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 10/18/2023] [Indexed: 01/17/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202409000-00037/figure1/v/2024-01-16T170235Z/r/image-tiff Previous studies have reported upregulation of heme oxygenase-1 in different central nervous system injury models. Heme oxygenase-1 plays a critical anti-inflammatory role and is essential for regulating cellular redox homeostasis. Metformin is a classic drug used to treat type 2 diabetes that can inhibit ferroptosis. Previous studies have shown that, when used to treat cardiovascular and digestive system diseases, metformin can also upregulate heme oxygenase-1 expression. Therefore, we hypothesized that heme oxygenase-1 plays a significant role in mediating the beneficial effects of metformin on neuronal ferroptosis after spinal cord injury. To test this, we first performed a bioinformatics analysis based on the GEO database and found that heme oxygenase-1 was upregulated in the lesion of rats with spinal cord injury. Next, we confirmed this finding in a rat model of T9 spinal cord compression injury that exhibited spinal cord nerve cell ferroptosis. Continuous intraperitoneal injection of metformin for 14 days was found to both upregulate heme oxygenase-1 expression and reduce neuronal ferroptosis in rats with spinal cord injury. Subsequently, we used a lentivirus vector to knock down heme oxygenase-1 expression in the spinal cord, and found that this significantly reduced the effect of metformin on ferroptosis after spinal cord injury. Taken together, these findings suggest that metformin inhibits neuronal ferroptosis after spinal cord injury, and that this effect is partially dependent on upregulation of heme oxygenase-1.
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Affiliation(s)
- Zhihua Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
- Postdoctoral Innovation Practice Base, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Wu Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Zhixiong Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Lulu Zhang
- Department of Nephrology, Nanchang People's Hospital Affiliated to Nanchang Medical College, Nanchang, Jiangxi Province, China
| | - Meihua Li
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
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Zhang L, Hu Z, Li Z, Lin Y. Crosstalk among mitophagy, pyroptosis, ferroptosis, and necroptosis in central nervous system injuries. Neural Regen Res 2024; 19:1660-1670. [PMID: 38103229 PMCID: PMC10960298 DOI: 10.4103/1673-5374.389361] [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: 04/27/2023] [Revised: 08/28/2023] [Accepted: 09/24/2023] [Indexed: 12/18/2023] Open
Abstract
Central nervous system injuries have a high rate of resulting in disability and mortality; however, at present, effective treatments are lacking. Programmed cell death, which is a genetically determined form of active and ordered cell death with many types, has recently attracted increasing attention due to its functions in determining the fate of cell survival. A growing number of studies have suggested that programmed cell death is involved in central nervous system injuries and plays an important role in the progression of brain damage. In this review, we provide an overview of the role of programmed cell death in central nervous system injuries, including the pathways involved in mitophagy, pyroptosis, ferroptosis, and necroptosis, and the underlying mechanisms by which mitophagy regulates pyroptosis, ferroptosis, and necroptosis. We also discuss the new direction of therapeutic strategies targeting mitophagy for the treatment of central nervous system injuries, with the aim to determine the connection between programmed cell death and central nervous system injuries and to identify new therapies to modulate programmed cell death following central nervous system injury. In conclusion, based on these properties and effects, interventions targeting programmed cell death could be developed as potential therapeutic agents for central nervous system injury patients.
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Affiliation(s)
- Li Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China
| | - Zhigang Hu
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China
| | - Zhenxing Li
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China
| | - Yixing Lin
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China
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Gu Q, Sha W, Huang Q, Wang J, Zhu Y, Xu T, Xu Z, Zhu Q, Ge J, Tian S, Lin X. Fibroblast growth factor 21 inhibits ferroptosis following spinal cord injury by regulating heme oxygenase-1. Neural Regen Res 2024; 19:1568-1574. [PMID: 38051901 PMCID: PMC10883498 DOI: 10.4103/1673-5374.387979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 07/22/2023] [Indexed: 12/07/2023] Open
Abstract
Abstract
JOURNAL/nrgr/04.03/01300535-202407000-00037/figure1/v/2023-11-20T171125Z/r/image-tiff
Interfering with the ferroptosis pathway is a new strategy for the treatment of spinal cord injury. Fibroblast growth factor 21 can inhibit ferroptosis and promote neurofunctional recovery, while heme oxygenase-1 is a regulator of iron and reactive oxygen species homeostasis. The relationship between heme oxygenase-1 and ferroptosis remains controversial. In this study, we used a spinal cord injury rat model to show that the levels of fibroblast growth factor 21 in spinal cord tissue decreased after spinal cord injury. In addition, there was a significant aggravation of ferroptosis and a rapid increase in heme oxygenase-1 expression after spinal cord injury. Further, heme oxygenase-1 aggravated ferroptosis after spinal cord injury, while fibroblast growth factor 21 inhibited ferroptosis by downregulating heme oxygenase-1. Thus, the activation of fibroblast growth factor 21 may provide a potential treatment for spinal cord injury. These findings could provide a new potential mechanistic explanation for fibroblast growth factor 21 in the treatment of spinal cord injury.
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Affiliation(s)
- Qi Gu
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
- Orthopedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu Province, China
| | - Weiping Sha
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
- Orthopedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu Province, China
| | - Qun Huang
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
- Orthopedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu Province, China
| | - Jin Wang
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
- Orthopedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu Province, China
| | - Yi Zhu
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
- Orthopedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu Province, China
| | - Tianli Xu
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
- Orthopedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu Province, China
| | - Zhenhua Xu
- Department of Anesthesiology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
| | - Qiancheng Zhu
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
- Orthopedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu Province, China
| | - Jianfei Ge
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
- Orthopedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu Province, China
| | - Shoujin Tian
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
- Orthopedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu Province, China
| | - Xiaolong Lin
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu Province, China
- Orthopedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu Province, China
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Ma H, Liu S, Zhong H, Zhou M, Xing C, Li Y, Zhang Q, Guo J, Ning G. Exploring the Landscape of Hydrogel Therapy for Spinal Cord Injury: A Bibliometric and Visual Analysis (1991-2023). World Neurosurg 2024; 186:e95-e105. [PMID: 38508381 DOI: 10.1016/j.wneu.2024.03.048] [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: 01/15/2024] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND This study aimed to conduct a bibliometric analysis of the literature on hydrogel therapy for spinal cord injury to visualize the research status, identify hotspots, and explore the development trends in this field. METHODS Web of science Core Collection database was searched for relevant studies published between January 1991 and December 2023. Data such as journal title, author information, institutional affiliation, country, citation, and keywords were extracted. Bibliometrix, CiteSpace, and VOSviewer were used to perform bibliometric analysis of the retrieved data. RESULTS A total of 1099 articles pertaining to hydrogel therapy for spinal cord injury were retrieved, revealing an upward trajectory in both annual publication volume and cumulative publication volume. Biomaterials emerged as the journal with the highest number of publications and the most rapid cumulative publication growth, contributing 84 articles. Among authors, Shoichet MS stood out with the highest number of publications and citations, totaling 66 articles. The University of Toronto led in institutional contributions with 65 publications, while China dominated in country-specific publications, accounting for 374 articles. However, to foster significant academic achievements, it is imperative for diverse authors, institutions, and countries to enhance collaboration. Current research in this field concentrates on scaffold architecture, nerve growth factor, the fibrotic microenvironment, and guidance channels. Simultaneously, upcoming research directions prioritize 3D bioprinting, injectable hydrogel, inflammation, and nanoparticles within the realm of hydrogel therapy for spinal cord injuries. CONCLUSIONS In summary, this study provided a comprehensive analysis of the current research status and frontiers of hydrogel therapy for spinal cord injury. The findings provide a foundation for future research and clinical translation efforts of hydrogel therapy in this field.
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Affiliation(s)
- Hongpeng Ma
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Song Liu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Hao Zhong
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Mi Zhou
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Cong Xing
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan Li
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Qi Zhang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Junrui Guo
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Guangzhi Ning
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China.
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Li Y, Cui H, Xu WX, Fu HY, Li JZ, Fan RF. Selenium represses microRNA-202-5p/MICU1 aixs to attenuate mercuric chloride-induced kidney ferroptosis. Poult Sci 2024; 103:103891. [PMID: 38878746 PMCID: PMC11227010 DOI: 10.1016/j.psj.2024.103891] [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: 03/19/2024] [Revised: 05/15/2024] [Accepted: 05/20/2024] [Indexed: 07/09/2024] Open
Abstract
Mercuric chloride (HgCl2) is a nephrotoxic contaminant that is widely present in the environment. Selenium (Se) can effectively antagonize the biological toxicity caused by heavy metals. Here, in vivo and in vitro models of Se antagonism to HgCl2-induced nephrotoxicity in chickens were established, with the aim of exploring the specific mechanism. Morphological observation and kidney function analysis showed that Se alleviated HgCl2-induced kidney tissue injury and cytotoxicity. The results showed that ferroptosis was the primary mechanism for the toxicity of HgCl2, as indicated by iron overload and lipid peroxidation. On the one hand, Se significantly prevented HgCl2-induced iron overload. On the other hand, Se alleviated the intracellular reactive oxygen species (ROS) levels caused by HgCl2. Subsequently, we focused on the sources of ROS during HgCl2-induced ferroptosis. Mechanically, Se reduced ROS overproduction induced by HgCl2 through mitochondrial calcium uniporter (MCU)/mitochondrial calcium uptake 1 (MICU1)-mediated mitochondrial calcium ion (Ca2+) overload. Furthermore, a dual luciferase reporter assay demonstrated that MICU1 was the direct target of miR-202-5p. Overall, Se represses miR-202-5p/MICU1 axis to attenuate HgCl2-induced kidney ferroptosis.
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Affiliation(s)
- Yue Li
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
| | - Han Cui
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
| | - Wan-Xue Xu
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
| | - Hong-Yu Fu
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
| | - Jiu-Zhi Li
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China
| | - Rui-Feng Fan
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an City, Shandong Province, 271018, China.
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Cui H, Wang Y, Ma J, Zhou L, Li G, Li Y, Sun Y, Shen J, Ma T, Wang Q, Feng X, Dong B, Yang P, Li Y, Ma X. Advances in exosome modulation of ferroptosis for the treatment of orthopedic diseases. Pathol Res Pract 2024; 257:155312. [PMID: 38663177 DOI: 10.1016/j.prp.2024.155312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 04/09/2024] [Accepted: 04/15/2024] [Indexed: 05/12/2024]
Abstract
Current treatments for orthopaedic illnesses frequently result in poor prognosis, treatment failure, numerous relapses, and other unpleasant outcomes that have a significant impact on patients' quality of life. Cell-free therapy has emerged as one of the most promising options in recent decades for improving the status quo. As a result, using exosomes produced from various cells to modulate ferroptosis has been proposed as a therapeutic method for the condition. Exosomes are extracellular vesicles that secrete various bioactive chemicals that influence disease treatment and play a role in the genesis and progression of orthopaedic illnesses. Ferroptosis is a recently defined kind of controlled cell death typified by large iron ion buildup and lipid peroxidation. An increasing number of studies indicate that ferroptosis plays a significant role in orthopaedic illnesses. Exosomes, as intercellular information transfer channels, have been found to play a significant role in the regulation of ferroptosis processes. Furthermore, accumulating research suggests that exosomes can influence the course of many diseases by regulating ferroptosis in injured cells. In order to better understand the processes by which exosomes govern ferroptosis in the therapy of orthopaedic illnesses. This review discusses the biogenesis, secretion, and uptake of exosomes, as well as the mechanisms of ferroptosis and exosomes in the therapy of orthopaedic illnesses. It focuses on recent research advances and exosome mechanisms in regulating iron death for the therapy of orthopaedic illnesses. The present state of review conducted both domestically and internationally is elucidated and anticipated as a viable avenue for future therapy in the field of orthopaedics.
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Affiliation(s)
- Hongwei Cui
- Tianjin Medical University Orthopedic Clinical College, Tianjin 300050, China; Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yan Wang
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Jianxiong Ma
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China.
| | - Liyun Zhou
- Tianjin Medical University Orthopedic Clinical College, Tianjin 300050, China; Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Guang Li
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yiyang Li
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yadi Sun
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Jiahui Shen
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Tiancheng Ma
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Qiyu Wang
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Xiaotian Feng
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Benchao Dong
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Peichuan Yang
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yan Li
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Xinlong Ma
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
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Liu T, Ma Z, Liu L, Pei Y, Wu Q, Xu S, Liu Y, Ding N, Guan Y, Zhang Y, Chen X. Conditioned medium from human dental pulp stem cells treats spinal cord injury by inhibiting microglial pyroptosis. Neural Regen Res 2024; 19:1105-1111. [PMID: 37862215 PMCID: PMC10749599 DOI: 10.4103/1673-5374.385309] [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: 11/19/2022] [Revised: 05/05/2023] [Accepted: 07/12/2023] [Indexed: 10/22/2023] Open
Abstract
Human dental pulp stem cell transplantation has been shown to be an effective therapeutic strategy for spinal cord injury. However, whether the human dental pulp stem cell secretome can contribute to functional recovery after spinal cord injury remains unclear. In the present study, we established a rat model of spinal cord injury based on impact injury from a dropped weight and then intraperitoneally injected the rats with conditioned medium from human dental pulp stem cells. We found that the conditioned medium effectively promoted the recovery of sensory and motor functions in rats with spinal cord injury, decreased expression of the microglial pyroptosis markers NLRP3, GSDMD, caspase-1, and interleukin-1β, promoted axonal and myelin regeneration, and inhibited the formation of glial scars. In addition, in a lipopolysaccharide-induced BV2 microglia model, conditioned medium from human dental pulp stem cells protected cells from pyroptosis by inhibiting the NLRP3/caspase-1/interleukin-1β pathway. These results indicate that conditioned medium from human dental pulp stem cells can reduce microglial pyroptosis by inhibiting the NLRP3/caspase-1/interleukin-1β pathway, thereby promoting the recovery of neurological function after spinal cord injury. Therefore, conditioned medium from human dental pulp stem cells may become an alternative therapy for spinal cord injury.
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Affiliation(s)
- Tao Liu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Ziqian Ma
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Liang Liu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yilun Pei
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Qichao Wu
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Songjie Xu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yadong Liu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Nan Ding
- Department of Stomatology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yun Guan
- Department of Anesthesiology and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
- Department of Neurological Surgery, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Yan Zhang
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Xueming Chen
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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8
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Shi L, Duan L, Duan D, Xu H, Li X, Zhao W. Long non-coding RNA DANCR increases spinal cord neuron apoptosis and inflammation of spinal cord injury by mediating the microRNA-146a-5p/MAPK6 axis. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2024; 33:2056-2067. [PMID: 38551688 DOI: 10.1007/s00586-024-08216-7] [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: 03/04/2024] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 06/18/2024]
Abstract
OBJECTIVE This research was to unravel the impact of the lncRNA differentiation antagonizing non-protein coding RNA (DANCR)/microRNA (miR)-146a-5p/mitogen-activated protein kinase 6 (MAPK6) axis on spinal cord injury (SCI). METHODS SCI mouse models were established and injected with si-DANCR or miR-146a-5p agomir. The recovery of motor function was assessed by Basso Mouse Scale. SCI was pathologically evaluated, and serum inflammatory factors were measured in SCI mice. Mouse spinal cord neurons were injured by H2O2 and transfected, followed by assessment of proliferation and apoptosis. DANCR, miR-146a-5p, and MAPK6 in tissues and cells were detected, as well as their relationship. RESULTS DANCR increased and miR-146a-5p decreased in SCI. Silencing DANCR or enhancing miR-146a-5p stimulated the proliferation of mouse spinal cord neurons and reduced apoptosis. DANCR was bound to miR-146a-5p to target MAPK6. DANCR affected the proliferation and apoptosis of spinal cord neurons by mediating the miR-146a-5p/MAPK6 axis. Downregulating DANCR or upregulating miR-146a-5p improved inflammation, the destruction of spinal cord tissue structure, and apoptosis in SCI mice. CONCLUSION DANCR affects spinal cord neuron apoptosis and inflammation of SCI by mediating the miR-146a-5p/MAPK6 axis.
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Affiliation(s)
- Liang Shi
- Department of Orthopedics, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Liang Duan
- Department of Orthopedics, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China.
| | - Dapeng Duan
- Department of Orthopedics, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Honghai Xu
- Department of Orthopedics, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
| | - Xiaoming Li
- Department of Emergency Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Wei Zhao
- Department of Orthopedics, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, China
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9
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Hosseini SM, Borys B, Karimi-Abdolrezaee S. Neural stem cell therapies for spinal cord injury repair: an update on recent preclinical and clinical advances. Brain 2024; 147:766-793. [PMID: 37975820 DOI: 10.1093/brain/awad392] [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: 07/27/2023] [Revised: 10/22/2023] [Accepted: 11/02/2023] [Indexed: 11/19/2023] Open
Abstract
Traumatic spinal cord injury (SCI) is a leading cause of lifelong disabilities. Permanent sensory, motor and autonomic impairments after SCI are substantially attributed to degeneration of spinal cord neurons and axons, and disintegration of neural network. To date, minimal regenerative treatments are available for SCI with an unmet need for new therapies to reconstruct the damaged spinal cord neuron-glia network and restore connectivity with the supraspinal pathways. Multipotent neural precursor cells (NPCs) have a unique capacity to generate neurons, oligodendrocytes and astrocytes. Due to this capacity, NPCs have been an attractive cell source for cellular therapies for SCI. Transplantation of NPCs has been extensively tested in preclinical models of SCI in the past two decades. These studies have identified opportunities and challenges associated with NPC therapies. While NPCs have the potential to promote neuroregeneration through various mechanisms, their low long-term survival and integration within the host injured spinal cord limit the functional benefits of NPC-based therapies for SCI. To address this challenge, combinatorial strategies have been developed to optimize the outcomes of NPC therapies by enriching SCI microenvironment through biomaterials, genetic and pharmacological therapies. In this review, we will provide an in-depth discussion on recent advances in preclinical NPC-based therapies for SCI. We will discuss modes of actions and mechanism by which engrafted NPCs contribute to the repair process and functional recovery. We will also provide an update on current clinical trials and new technologies that have facilitated preparation of medical-grade human NPCs suitable for transplantation in clinical studies.
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Affiliation(s)
- Seyed Mojtaba Hosseini
- Department of Physiology and Pathophysiology, Spinal Cord Research Centre, Rady Faculty of Health Sciences, University of Manitoba Winnipeg, Manitoba R3E 0J9, Canada
- Manitoba Multiple Sclerosis Research Center, Winnipeg, Manitoba R3E 0J9, Canada
| | - Ben Borys
- Department of Physiology and Pathophysiology, Spinal Cord Research Centre, Rady Faculty of Health Sciences, University of Manitoba Winnipeg, Manitoba R3E 0J9, Canada
| | - Soheila Karimi-Abdolrezaee
- Department of Physiology and Pathophysiology, Spinal Cord Research Centre, Rady Faculty of Health Sciences, University of Manitoba Winnipeg, Manitoba R3E 0J9, Canada
- Manitoba Multiple Sclerosis Research Center, Winnipeg, Manitoba R3E 0J9, Canada
- Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba R3E 3P4, Canada
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10
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Wang D, Zhao M, Tang X, Gao M, Liu W, Xiang M, Ruan J, Chen J, Long B, Li J. Transcriptomic analysis of spinal cord regeneration after injury in Cynops orientalis. Neural Regen Res 2023; 18:2743-2750. [PMID: 37449639 DOI: 10.4103/1673-5374.373717] [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: 07/18/2023] Open
Abstract
Cynops orientalis (C. orientalis) has a pronounced ability to regenerate its spinal cord after injury. Thus, exploring the molecular mechanism of this process could provide new approaches for promoting mammalian spinal cord regeneration. In this study, we established a model of spinal cord thoracic transection injury in C. orientalis, which is an endemic species in China. We performed RNA sequencing of the contused axolotl spinal cord at two early time points after spinal cord injury - during the very acute stage (4 days) and the subacute stage (7 days) - and identified differentially expressed genes; additionally, we performed Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses, at each time point. Transcriptome sequencing showed that 13,059 genes were differentially expressed during C. orientalis spinal cord regeneration compared with uninjured animals, among which 4273 were continuously down-regulated and 1564 were continuously up-regulated. Down-regulated genes were most enriched in the Gene Ontology term "multicellular organismal process" and in the ribosome pathway at 10 days following spinal cord injury. We found that multiple genes associated with energy metabolism were down-regulated and multiple genes associated with the lysosome were up-regulated after spinal cord injury, indicating the importance of low metabolic activity during wound healing. Immune response-associated pathways were activated during the early acute phase (4 days), while the expression of extracellular matrix proteins such as glycosaminoglycan and collagen, as well as tight junction proteins, was lower at 10 days post-spinal cord injury than 4 days post-spinal cord injury. However, compared with 4 days post-injury, at 10 days post-injury neuroactive ligand-receptor interactions were no longer down-regulated, up-regulated differentially expressed genes were enriched in pathways associated with cancer and the cell cycle, and SHH, VIM, and Sox2 were prominently up-regulated. Immunofluorescence staining showed that glial fibrillary acidic protein was up-regulated in axolotl ependymoglial cells after injury, similar to what is observed in mammalian astrocytes after spinal cord injury, even though axolotls do not form a glial scar during regeneration. We suggest that low intracellular energy production could slow the rapid amplification of ependymoglial cells, thereby inhibiting reactive gliosis, at early stages after spinal cord injury. Extracellular matrix degradation slows cellular responses, represses the expression of neurogenic genes, and reactivates a transcriptional program similar to that of embryonic neuroepithelial cells. These ependymoglial cells act as neural stem cells: they migrate and proliferate to repair the lesion and then differentiate to replace lost glial cells and neurons. This provides the regenerative microenvironment that allows axon growth after injury.
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Affiliation(s)
- Di Wang
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Man Zhao
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Xiao Tang
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Man Gao
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Wenjing Liu
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Minghui Xiang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Jian Ruan
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Jie Chen
- Laboratory of Reproductive Medicine, The Second People's Hospital, Wuhu, Wuhu, Anhui Province, China
| | - Bin Long
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
| | - Jun Li
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui Province, China
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11
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Tancheva L, Kalfin R, Minchev B, Uzunova D, Tasheva K, Tsvetanova E, Georgieva A, Alexandrova A, Stefanova M, Solak A, Lazarova M, Hodzhev Y, Grigorova V, Yarkov D, Petkova-Kirova P. Memory Recovery Effect of a New Bioactive Innovative Combination in Rats with Experimental Dementia. Antioxidants (Basel) 2023; 12:2050. [PMID: 38136170 PMCID: PMC10740861 DOI: 10.3390/antiox12122050] [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: 11/01/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Alzheimer's disease manifests as a complex pathological condition, with neuroinflammation, oxidative stress and cholinergic dysfunction being a few of the many pathological changes. Due to the complexity of the disease, current therapeutic strategies aim at a multitargeted approach, often relying on a combination of substances with versatile and complementary effects. In the present study, a unique combination of α-lipoic acid, citicoline, extracts of leaves from olive tree and green tea, vitamin D3, selenium and an immune-supporting complex was tested in scopolamine-induced dementia in rats. Using behavioral and biochemical methods, we assessed the effects of the combination on learning and memory, and elucidated the mechanisms of these effects. Our results showed that, compared to its components, the experimental combination was most efficient in improving short- and long-term memory as assessed by the step-through method as well as spatial memory as assessed by T-maze and Barnes maze underlined by decreases in AChE activity (p < 0.05) and LPO (p < 0.001), increases in SOD activity in the cortex (p < 0.05) and increases in catalase (p < 0.05) and GPx (p < 0.01) activities and BDNF (p < 0.001) and pCREB (p < 0.05) levels in the hippocampus. No significant histopathological changes or blood parameter changes were detected, making the experimental combination an effective and safe candidate in a multitargeted treatment of AD.
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Affiliation(s)
- Lyubka Tancheva
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Reni Kalfin
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
- Department of Healthcare, South-West University “Neofit Rilski”, Ivan Mihailov Str. 66, 2700 Blagoevgrad, Bulgaria
| | - Borislav Minchev
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Diamara Uzunova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Krasimira Tasheva
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 21, 1113 Sofia, Bulgaria;
| | - Elina Tsvetanova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Almira Georgieva
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Albena Alexandrova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
- National Sports Academy, Department of Physiology and Biochemistry, Acad. S. Mladenov Str. 21, 1700 Sofia, Bulgaria
| | - Miroslava Stefanova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Ayten Solak
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
- Institute of Cryobiology and Food Technologies, Cherni Vrah Blvd 53, 1407 Sofia, Bulgaria
| | - Maria Lazarova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Yordan Hodzhev
- National Center of Infectious and Parasitic Diseases, Yanko Sakazov Blvd 26, 1504 Sofia, Bulgaria;
| | - Valya Grigorova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Dobri Yarkov
- Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria;
| | - Polina Petkova-Kirova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
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12
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Qian J, Jiang M, Ding Z, Gu D, Bai H, Cai M, Yao D. Role of Long Non-coding RNA in Nerve Regeneration. Int J Neurosci 2023:1-14. [PMID: 37937941 DOI: 10.1080/00207454.2023.2280446] [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: 02/06/2023] [Accepted: 11/02/2023] [Indexed: 11/09/2023]
Abstract
Nerve injury can be caused by a variety of factors. It often takes a long time to repair a nerve injury and severe nerve injury is even difficult to heal. Therefore, increasing attention has focused on nerve injury and repair. Long non-coding RNA (lncRNA) is a newly discovered non-coding RNA with a wide range of biological activities. Numerous studies have shown that a variety of lncRNAs undergo changes in expression after nerve injury, indicating that lncRNAs may be involved in various biological processes of nerve repair and regeneration. Herein, we summarize the biological roles of lncRNAs in neurons, glial cells and other cells during nerve injury and regeneration, which will help lncRNAs to be better applied in nerve injury and regeneration in the future.
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Affiliation(s)
- Jiaxi Qian
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China
| | - Maorong Jiang
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China
| | - Zihan Ding
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China
| | - Dandan Gu
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China
| | - Huiyuan Bai
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China
| | - Min Cai
- Medical School of Nantong University, Nantong, P.R. China
| | - Dengbing Yao
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China
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13
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Wang J, Lu J, Zhu Y, Huang Q, Gu Q, Tian S, Ge J, Lin X, Sha W. Guanine-rich RNA sequence binding factor 1 regulates neuronal ferroptosis after spinal cord injury in rats via the GPX4 signaling pathway. Brain Res 2023; 1818:148497. [PMID: 37506966 DOI: 10.1016/j.brainres.2023.148497] [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: 05/21/2023] [Revised: 07/08/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
Spinal cord injury (SCI) can trigger multiple forms of neuronal cell death. Among these, ferroptosis stands out as a particularly important style of cell death due to its iron overload-dependent lipid peroxidative regulatory mechanism. The guanine-rich RNA sequence binding factor 1 (GRSF1) is an RNA-binding protein that has been implicated in cellular senescence, mitochondrial function, oxidative stress, erythropoiesis, and embryonic brain development. However, the function of GRSF1 in neuronal ferroptosis after SCI remains unclear. Here, we established a SCI rat model in vivo and evaluated the function of GRSF1 on neuronal ferroptosis by inhibiting and overexpressing GRSF1. We firstly verified the protein expression of GRSF1 and GPX4 at different time points after SCI. According of changes in expression, we chose 3 d post SCI to assess the effect of GRSF1 on ferroptosis. We found that GRSF1 expression decreased after SCI. In addition, GRSF1 was mainly localized in the cytoplasm of neurons. The results also showed that overexpression of GRSF1 promoted recovery of neurological functional after SCI. Further investigation revealed that GRSF1 might attenuate neuronal ferroptosis by regulating the GPX4 protein expression levels. In summary, our findings indicate that GRSF1 attenuates injury in SCI and reduces neuron ferroptosis and promotes functional recovery via GPX4.
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Affiliation(s)
- Jin Wang
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Jinqi Lu
- Department of Pathology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, China
| | - Yi Zhu
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Qun Huang
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Qi Gu
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Shoujin Tian
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Jianfei Ge
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Xiaolong Lin
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China.
| | - Weiping Sha
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China.
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14
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Huang M, Wang X, Botchway BOA, Zhang Y, Liu X. The role of long noncoding ribonucleic acids in the central nervous system injury. Mol Cell Biochem 2023:10.1007/s11010-023-04875-0. [PMID: 37898578 DOI: 10.1007/s11010-023-04875-0] [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: 07/08/2023] [Accepted: 10/05/2023] [Indexed: 10/30/2023]
Abstract
Central nervous system (CNS) injury involves complex pathophysiological molecular mechanisms. Long noncoding ribonucleic acids (lncRNAs) are an important form of RNA that do not encode proteins but take part in the regulation of gene expression and various biological processes. Multitudinous studies have evidenced lncRNAs to have a significant role in the process of progression and recovery of various CNS injuries. Herein, we review the latest findings pertaining to the role of lncRNAs in CNS, both normal and diseased state. We aim to present a comprehensive clinical application prospect of lncRNAs in CNS, and thus, discuss potential strategies of lncRNAs in treating CNS injury.
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Affiliation(s)
- Min Huang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing City, 312000, China
| | - Xizhi Wang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing City, 312000, China
- Department of Cardiology, Lihuili Hospital Affiliated to Ningbo University, Ningbo City, China
| | | | - Yong Zhang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing City, 312000, China
| | - Xuehong Liu
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing City, 312000, China.
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15
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Moos WH, Faller DV, Glavas IP, Kanara I, Kodukula K, Pernokas J, Pernokas M, Pinkert CA, Powers WR, Sampani K, Steliou K, Vavvas DG. Epilepsy: Mitochondrial connections to the 'Sacred' disease. Mitochondrion 2023; 72:84-101. [PMID: 37582467 DOI: 10.1016/j.mito.2023.08.002] [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: 06/01/2023] [Revised: 08/03/2023] [Accepted: 08/12/2023] [Indexed: 08/17/2023]
Abstract
Over 65 million people suffer from recurrent, unprovoked seizures. The lack of validated biomarkers specific for myriad forms of epilepsy makes diagnosis challenging. Diagnosis and monitoring of childhood epilepsy add to the need for non-invasive biomarkers, especially when evaluating antiseizure medications. Although underlying mechanisms of epileptogenesis are not fully understood, evidence for mitochondrial involvement is substantial. Seizures affect 35%-60% of patients diagnosed with mitochondrial diseases. Mitochondrial dysfunction is pathophysiological in various epilepsies, including those of non-mitochondrial origin. Decreased ATP production caused by malfunctioning brain cell mitochondria leads to altered neuronal bioenergetics, metabolism and neurological complications, including seizures. Iron-dependent lipid peroxidation initiates ferroptosis, a cell death pathway that aligns with altered mitochondrial bioenergetics, metabolism and morphology found in neurodegenerative diseases (NDDs). Studies in mouse genetic models with seizure phenotypes where the function of an essential selenoprotein (GPX4) is targeted suggest roles for ferroptosis in epilepsy. GPX4 is pivotal in NDDs, where selenium protects interneurons from ferroptosis. Selenium is an essential central nervous system micronutrient and trace element. Low serum concentrations of selenium and other trace elements and minerals, including iron, are noted in diagnosing childhood epilepsy. Selenium supplements alleviate intractable seizures in children with reduced GPX activity. Copper and cuproptosis, like iron and ferroptosis, link to mitochondria and NDDs. Connecting these mechanistic pathways to selenoproteins provides new insights into treating seizures, pointing to using medicines including prodrugs of lipoic acid to treat epilepsy and to potential alternative therapeutic approaches including transcranial magnetic stimulation (transcranial), photobiomodulation and vagus nerve stimulation.
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Affiliation(s)
- Walter H Moos
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of California San Francisco, San Francisco, CA, USA.
| | - Douglas V Faller
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA; Cancer Research Center, Boston University School of Medicine, Boston, MA, USA
| | - Ioannis P Glavas
- Department of Ophthalmology, New York University School of Medicine, New York, NY, USA
| | | | | | - Julie Pernokas
- Advanced Dental Associates of New England, Woburn, MA, USA
| | - Mark Pernokas
- Advanced Dental Associates of New England, Woburn, MA, USA
| | - Carl A Pinkert
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Whitney R Powers
- Department of Health Sciences, Boston University, Boston, MA, USA; Department of Anatomy, Boston University School of Medicine, Boston, MA, USA
| | - Konstantina Sampani
- Beetham Eye Institute, Joslin Diabetes Center, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Kosta Steliou
- Cancer Research Center, Boston University School of Medicine, Boston, MA, USA; PhenoMatriX, Inc., Natick, MA, USA
| | - Demetrios G Vavvas
- Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; Retina Service, Angiogenesis Laboratory, Massachusetts Eye and Ear Infirmary, Boston, MA, USA
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16
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Huang Q, Sha W, Gu Q, Wang J, Zhu Y, Xu T, Xu Z, Yan F, Lin X, Tian S. Inhibition of Connexin43 Improves the Recovery of Spinal Cord Injury Against Ferroptosis via the SLC7A11/GPX4 Pathway. Neuroscience 2023; 526:121-134. [PMID: 37391124 DOI: 10.1016/j.neuroscience.2023.06.017] [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: 02/24/2023] [Revised: 06/15/2023] [Accepted: 06/20/2023] [Indexed: 07/02/2023]
Abstract
Ferroptosis plays a key role in the process of spinal cord injury (SCI). As a signal amplifier, connexin 43 (CX43) participates in cell death signal transduction and aggravates the propagation of injury. However, it remains unclear whether CX43 plays a regulatory role in ferroptosis after SCI. The SCI rat model was established by an Infinite Vertical Impactor to investigate the role of CX43 in SCI-induced ferroptosis. Ferrostatin-1 (Fer-1), an inhibitor of ferroptosis, and a CX43-specific inhibitor (Gap27) were administered by intraperitoneal injection. Behavioral analysis was assessed according to the Basso-Beattie-Bresnahan (BBB) Motor Rating Scale and the inclined plate test. The levels of ferroptosis-related proteins were estimated by qRT-PCR and western blotting, while the histopathology of neuronal injury induced by SCI was evaluated by immunofluorescence, Nissl, FJB and Perl's Blue staining. Meanwhile, transmission electron microscopy was used to observe the ultrastructural changes characteristic of ferroptosis. Gap27 strongly inhibited ferroptosis and therefore improved the functional recovery of SCI, which was similar to the treatment of Fer-1. Notably, the inhibition of CX43 decreased P-mTOR/mTOR expression and reversed the decrease in SLC7A11 induced by SCI. As a result, the levels of GPX4 and glutathione (GSH) increased, while the levels of the lipid peroxidation products 4-hydroxynonenal (4-HNE) and malondialdehyde (MDA) decreased. Together, inhibition of CX43 could alleviate ferroptosis after SCI. These findings reveal a potential mechanism of the neuroprotective role of CX43 after SCI and provide a new theoretical basis for clinical transformation and application.
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Affiliation(s)
- Qun Huang
- Department of Orthopaedic Surgery, Zhangjiagang Hospital affiliated to Soochow University, Suzhou 215600, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Weiping Sha
- Department of Orthopaedic Surgery, Zhangjiagang Hospital affiliated to Soochow University, Suzhou 215600, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Qi Gu
- Department of Orthopaedic Surgery, Zhangjiagang Hospital affiliated to Soochow University, Suzhou 215600, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Jin Wang
- Department of Orthopaedic Surgery, Zhangjiagang Hospital affiliated to Soochow University, Suzhou 215600, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Yi Zhu
- Department of Orthopaedic Surgery, Zhangjiagang Hospital affiliated to Soochow University, Suzhou 215600, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Tianli Xu
- Department of Orthopaedic Surgery, Zhangjiagang Hospital affiliated to Soochow University, Suzhou 215600, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China
| | - Zhenhua Xu
- Department of Anesthesiology, Zhangjiagang Hospital affiliated to Soochow University, Suzhou 215600, China
| | - Fei Yan
- Department of Orthopaedic Surgery, Zhangjiagang Hospital affiliated to Soochow University, Suzhou 215600, China
| | - Xiaolong Lin
- Department of Orthopaedic Surgery, Zhangjiagang Hospital affiliated to Soochow University, Suzhou 215600, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China.
| | - Shoujin Tian
- Department of Orthopaedic Surgery, Zhangjiagang Hospital affiliated to Soochow University, Suzhou 215600, China; Orthopaedics Laboratory, The First People's Hospital of Zhangjiagang City, Suzhou 215600, China.
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Yang J, Gong Z, Dong J, Bi H, Wang B, Du K, Zhang C, Chen L. lncRNA XIST inhibition promotes M2 polarization of microglial and aggravates the spinal cord injury via regulating miR-124-3p / IRF1 axis. Heliyon 2023; 9:e17852. [PMID: 37455998 PMCID: PMC10344764 DOI: 10.1016/j.heliyon.2023.e17852] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/18/2023] Open
Abstract
Spinal cord injury (SCI) has a high disability rate and mortality rate. Recently, LncRNA XIST has been found to be involved in the regulation of inflammatory responses. Therefore, we aimed to investigate the role of XIST in the occurrence and development of SCI and the specific regulation mechanism. Methods: 100 ng/mL lipopolysaccharide (LPS) was used to treat mouse microglia BV2 cells. Hitting spinal cord was performed to C57BL/6 mice for establishing SCI model. Real-time reverse transcriptase-polymerase chain reaction (RT-qPCR), Western blot, Immunofluorescence (IF) and Enzyme linked immunosorbent assay (ELISA) experiments were used to explore the function of XIST, miR-124-3p and IRF1 in LPS-induced BV2 cells. RT-qPCR, Nissl staining, IF, Western blot and ELISA experiment were performed to study the function of XIST in SCI mice. Dual-luciferase reporter assay, RNA immunoprecipitation (RIP), RT-qPCR and Western blot assays were utilized to identify the interaction among XIST, miR-124-3p and IRF1. Results: XIST was upregulated in LPS-induced BV2 cells and spinal cord tissues of SCI mice. Overexpression of XIST promoted the M1 microphages polarization and cytokines concentration in LPS-stimulated BV2 cells, aggravated SCI of mice. Downregulated XIST promoted M1-to-M2 conversion of microglial and relieved the injury of SCI mice. Mechanism verification indicated that XIST acted as a molecular sponge of miR-124-3p and regulated IRF1 expression. Increased miR-124-3p or reduced IRF1 inhibited M1 polarization of microglial and decreased the production of inflammatory cytokines in LPS-induced BV2 cells. Increased XIST or decreased miR-124-3p had an opposite of on LPS-induced BV2 cells. Conclusion: Overexpression of XIST enhanced M1 polarization of microglia and promoted the level of inflammatory cytokines through sponging miR-124-3p and regulating IRF1 expression.
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Affiliation(s)
| | | | | | | | | | | | | | - Lingqiang Chen
- Corresponding author. Department of Orthopaedics, The First affiliated hospital of Kunming medical University, No.295 Xichang Rd, Kunming 650032, Yunnan, China
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Bartos A, Sikora J. Bioinorganic Modulators of Ferroptosis: A Review of Recent Findings. Int J Mol Sci 2023; 24:ijms24043634. [PMID: 36835045 PMCID: PMC9967694 DOI: 10.3390/ijms24043634] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/02/2023] [Accepted: 02/08/2023] [Indexed: 02/15/2023] Open
Abstract
Ferroptosis was first reported as a separate modality of regulated cell death in 2008 and distinguished under its current name in 2012 after it was first induced with erastin. In the following decade, multiple other chemical agents were researched for their pro- or anti-ferroptotic properties. Complex organic structures with numerous aromatic moieties make up the majority of this list. This review fills a more overlooked niche by gathering, outlining and setting out conclusions regarding less prominent cases of ferroptosis induced by bioinorganic compounds and reported on within the last few years. The article contains a short summary of the application of bioinorganic chemicals based on gallium, several chalcogens, transition metals and elements known as human toxicants used for the purpose of evoking ferroptotic cell death in vitro or in vivo. These are used in the form of free ions, salts, chelates, gaseous and solid oxides or nanoparticles. Knowledge of how exactly these modulators promote or inhibit ferroptosis could be beneficial in the context of future therapies aimed against cancer or neurodegenerative diseases, respectively.
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Pan F, Xu W, Ding J, Wang C. Elucidating the progress and impact of ferroptosis in hemorrhagic stroke. Front Cell Neurosci 2023; 16:1067570. [PMID: 36713782 PMCID: PMC9874704 DOI: 10.3389/fncel.2022.1067570] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/13/2022] [Indexed: 01/12/2023] Open
Abstract
Hemorrhagic stroke is a devastating cerebrovascular disease with high morbidity and mortality, for which effective therapies are currently unavailable. Based on different bleeding sites, hemorrhagic stroke can be generally divided into intracerebral hemorrhage (ICH) and subarachnoid hemorrhage (SAH), whose pathogenesis share some similarity. Ferroptosis is a recently defined programmed cell deaths (PCDs), which is a critical supplement to the hypothesis on the mechanism of nervous system injury after hemorrhagic stroke. Ferroptosis is characterized by distinctive morphological changes of mitochondria and iron-dependent accumulation of lipid peroxides. Moreover, scientists have successfully demonstrated the involvement of ferroptosis in animal models of ICH and SAH, indicating that ferroptosis is a promising target for hemorrhagic stroke therapy. However, the studies on ferroptosis still faces a serious of technical and theoretical challenges. This review systematically elaborates the role of ferroptosis in the pathogenesis of hemorrhagic stroke and puts forward some opinions on the dilemma of ferroptosis research.
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Affiliation(s)
- Feixia Pan
- Department of Cardiac Surgery, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Weize Xu
- Department of Cardiac Surgery, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Jieying Ding
- Department of Pharmacy, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Chencen Wang
- Department of Pediatrics, The First People’s Hospital of Yongkang Affiliated to Hangzhou Medical College, Jinhua, China,*Correspondence: Chencen Wang,
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Cai Z, Han X, Li R, Yu T, Chen L, Wu X, Jin J. Research Progress of Long Non-coding RNAs in Spinal Cord Injury. Neurochem Res 2023; 48:1-12. [PMID: 35974214 PMCID: PMC9823062 DOI: 10.1007/s11064-022-03720-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 07/24/2022] [Accepted: 08/01/2022] [Indexed: 01/11/2023]
Abstract
Spinal cord injury (SCI) can result in a partial or complete loss of motor and sensory function below the injured segment, which has a significant impact on patients' quality of life and places a significant social burden on them. Long non-coding RNA (LncRNA) is a 200-1000 bp non-coding RNA that has been shown to have a key regulatory role in the progression of a variety of neurological illnesses. Many studies have demonstrated that differentially expressed LncRNAs following spinal cord injury can participate in inflammatory damage, apoptosis, and nerve healing by functioning as competitive endogenous RNA (ceRNA); at the same time, it has a significant regulatory effect on sequelae such neuropathic pain. As a result, we believe that LncRNAs could be useful as a molecular regulatory target in the diagnosis, treatment, and prognosis of spinal cord injury.
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Affiliation(s)
- Zongyan Cai
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Xue Han
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Ruizhe Li
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Tianci Yu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Lei Chen
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - XueXue Wu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Jiaxin Jin
- The Second Clinical Medical College, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China.
- Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730000, People's Republic of China.
- Department of Orthopaedics, The Second Hospital of Lanzhou University, Lanzhou, 730000, People's Republic of China.
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Seleno-Metabolites and Their Precursors: A New Dawn for Several Illnesses? Metabolites 2022; 12:metabo12090874. [PMID: 36144278 PMCID: PMC9504997 DOI: 10.3390/metabo12090874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 01/18/2023] Open
Abstract
Selenium (Se) is an essential element for human health as it is involved in different physiological functions. Moreover, a great number of Se compounds can be considered potential agents in the prevention and treatment of some diseases. It is widely recognized that Se activity is related to multiple factors, such as its chemical form, dose, and its metabolism. The understanding of its complex biochemistry is necessary as it has been demonstrated that the metabolites of the Se molecules used to be the ones that exert the biological activity. Therefore, the aim of this review is to summarize the recent information about its most remarkable metabolites of acknowledged biological effects: hydrogen selenide (HSe−/H2Se) and methylselenol (CH3SeH). In addition, special attention is paid to the main seleno-containing precursors of these derivatives and their role in different pathologies.
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