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Hu S, Zhu M, Xing H, Xue Y, Li J, Wang Z, Zhu Z, Fang M, Li Z, Xu J, He Y, Zhang N. Thread-structural microneedles loaded with engineered exosomes for annulus fibrosus repair by regulating mitophagy recovery and extracellular matrix homeostasis. Bioact Mater 2024; 37:1-13. [PMID: 38515611 PMCID: PMC10951295 DOI: 10.1016/j.bioactmat.2024.03.006] [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: 11/29/2023] [Revised: 02/09/2024] [Accepted: 03/04/2024] [Indexed: 03/23/2024] Open
Abstract
Low back pain is among the most grave public health concerns worldwide and the major clinical manifestation of intervertebral disc degeneration (IVDD). The destruction of annulus fibrosus (AF) is the primary cause of IVDD. A sustainable and stable treatment system for IVDD is lacking because of the special organizational structure and low nutrient supply of AF. We here found that IVDD results in the impaired mitochondrial function of AF tissue, and mitochondrial autophagy (mitophagy) plays a protective role in this process. We therefore reported a thread-structural microneedle (T-MN) matching the ring structure of AF. Based on the adsorption effect of laminin, our T-MN could load with bone marrow mesenchymal stem cell-derived exosomes to envelope the regulating mitophagy microRNA (miRNA 378), named as T-MN@EXO@miR-378. In general, we offered in situ locking in the defect site of AF to prevent nucleus pulposus leakage and promoted AF repair. The design of the thread structure was aimed at bionically matching the layered AF structure, thereby providing stronger adhesion. The T-MN@EXO@miR-378 effectively attached to AF and slowly released therapeutic engineered exosomes, and prevented IVDD progression by restoring mitophagy, promoting AF cell proliferation and migration, and inhibiting the pathological remodeling of the extracellular matrix. This functional system can be used as an excellent tool for sustained drug release and has a certain prospect in substituting the conventional treatment of IVDD.
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Affiliation(s)
- Shaojun Hu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Meng Zhu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, PR China
| | - Hongyuan Xing
- Department of Orthopaedics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, PR China
| | - Yucheng Xue
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Jun Li
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Zhan Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Zhou Zhu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, PR China
| | - Miaojie Fang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Zilong Li
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Jianbin Xu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, PR China
| | - Ning Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, PR China
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Xu T, Zhao H, Li J, Fang X, Wu H, Hu W. Apigetrin alleviates intervertebral disk degeneration by regulating nucleus pulposus cell autophagy. JOR Spine 2024; 7:e1325. [PMID: 38633661 PMCID: PMC11022626 DOI: 10.1002/jsp2.1325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/13/2024] [Accepted: 02/25/2024] [Indexed: 04/19/2024] Open
Abstract
Background Intervertebral disk degeneration (IVDD) is a common spine disease, and inflammation is considered to be one of its main pathogenesis. Apigetrin (API) is a natural bioactive flavonoid isolated from various herbal medicines and shows attractive anti-inflammatory and antioxidative properties; whereas, there is no exploration of the therapeutic potential of API on IVDD. Here, we aim to explore the potential role of API on IVDD in vivo and in vitro. Methods In vitro, western blotting, real-time quantitative polymerase chain reaction, and immunofluorescence analysis were implemented to explore the bioactivity of API on interleukin-1 beta (IL-1β)-induced inflammatory changes in nucleus pulposus cells (NPCs). In vivo, histological staining and immunohistochemistry were employed to investigate the histological changes of intervertebral disk sections on puncture-induced IVDD rat models. Results In vitro, API played a crucial role in anti-inflammation and autophagy enhancement in IL-1β-induced NPCs. API improved inflammation by inhibiting the nuclear factor-kappaB and mitogen-activated protein kinas pathways, whereas it promoted autophagy via the phosphatidylinositol 3-kinase/AKT/mammalian target of the rapamycin pathway. Furthermore, in vivo experiment illustrated that API mitigates the IVDD progression in puncture-induced IVDD model. Conclusions API inhibited degenerative phenotypes and promoted autophagy in vivo and in vitro IVDD models. Those suggested that API might be a potential drug or target for IVDD.
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Affiliation(s)
- Tao Xu
- Department of Orthopedics, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Hongqi Zhao
- Department of Orthopedics, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Jian Li
- Department of OrthopaedicsThird Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi HospitalTaiyuanChina
| | - Xuan Fang
- Department of Orthopedics, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Hua Wu
- Department of Orthopedics, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Weihua Hu
- Department of Orthopedics, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
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Chen X, Zhang A, Zhao K, Gao H, Shi P, Chen Y, Cheng Z, Zhou W, Zhang Y. The role of oxidative stress in intervertebral disc degeneration: Mechanisms and therapeutic implications. Ageing Res Rev 2024; 98:102323. [PMID: 38734147 DOI: 10.1016/j.arr.2024.102323] [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: 01/12/2024] [Revised: 04/19/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024]
Abstract
Oxidative stress is one of the main driving mechanisms of intervertebral disc degeneration(IDD). Oxidative stress has been associated with inflammation in the intervertebral disc, cellular senescence, autophagy, and epigenetics of intervertebral disc cells. It and the above pathological mechanisms are closely linked through the common hub reactive oxygen species(ROS), and promote each other in the process of disc degeneration and promote the development of the disease. This reveals the important role of oxidative stress in the process of IDD, and the importance and great potential of IDD therapy targeting oxidative stress. The efficacy of traditional therapy is unstable or cannot be maintained. In recent years, due to the rise of materials science, many bioactive functional materials have been applied in the treatment of IDD, and through the combination with traditional drugs, satisfactory efficacy has been achieved. At present, the research review of antioxidant bioactive materials in the treatment of IDD is not complete. Based on the existing studies, the mechanism of oxidative stress in IDD and the common antioxidant therapy were summarized in this paper, and the strategies based on emerging bioactive materials were reviewed.
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Affiliation(s)
- Xianglong Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Anran Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Kangcheng Zhao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Haiyang Gao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Pengzhi Shi
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuhang Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhangrong Cheng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wenjuan Zhou
- Department of Operating Room, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Yukun Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Yan S, Xie LY, Duan XX, Tan JX, Yang S, Meng L, Zhong QH, Lin WD, Yang JN, Xiao YY, Jiang X. Electroacupuncture improves apoptosis of nucleus pulposus cells via the IL-22/JAK2-STAT3 signaling pathway in a rat model of cervical intervertebral disk degeneration. Acupunct Med 2024:9645284241248465. [PMID: 38702866 DOI: 10.1177/09645284241248465] [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: 05/06/2024]
Abstract
BACKGROUND Cervical spondylosis (CS) is a prevalent disorder that can have a major negative impact on quality of life. Traditional conservative treatment has limited efficacy, and electroacupuncture (EA) is a novel treatment option. We investigated the application and molecular mechanism of EA treatment in a rat model of cervical intervertebral disk degeneration (CIDD). METHODS The CIDD rat model was established, following which rats in the electroacupuncture (EA) group received EA. For overexpression of IL-22 or inhibition of JAK2-STAT3 signaling, the rats were injected intraperitoneally with recombinant IL-22 protein (p-IL-22) or the JAK2-STAT3 (Janus kinase 2-signal transducer and activator of transcription protein 3) inhibitor AG490 after model establishment. Rat nucleus pulposus (NP) cells were isolated and cultured. Cell counting kit-8 and flow cytometry were used to analyze the viability and apoptosis of the NP cells. Expression of IL-22, JAK2 and STAT3 was determined using RT-qPCR. Expression of IL-22/JAK2-STAT3 pathway and apoptosis related proteins was detected by Western blotting (WB). RESULTS EA protected the NP tissues of CIDD rats by regulating the IL-22/JAK2-STAT3 pathway. Overexpression of IL-22 significantly promoted the expression of tumor necrosis factor (TNF)-α, IL-6, IL-1β, matrix metalloproteinase (MMP)3 and MMP13 compared with the EA group. WB demonstrated that the expression of IL-22, p-JAK2, p-STAT3, caspase-3 and Bax in NP cells of the EA group was significantly reduced and Bcl-2 elevated compared with the model group. EA regulated cytokines and MMP through activation of IL-22/JAK2-STAT3 signaling in CIDD rat NP cells. CONCLUSION We demonstrated that EA affected apoptosis by regulating the IL-22/JAK2-STAT3 pathway in NP cells and reducing inflammatory factors in the CIDD rat model. The results extend our knowledge of the mechanisms of action underlying the effects of EA as a potential treatment approach for CS in clinical practice.
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Affiliation(s)
- Sen Yan
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
| | - Ling-Yao Xie
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
| | - Xia-Xia Duan
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
| | - Jia-Xuan Tan
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
| | - Song Yang
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
| | - Ling Meng
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
| | - Qing-Hua Zhong
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
| | - Wei-Di Lin
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
| | - Jia-Ni Yang
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
| | - Yao-Yao Xiao
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
| | - Xueyu Jiang
- Acupuncture Department II, Yueyang Hospital of Traditional Chinese Medicine, Yueyang, China
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Dai J, Liu J, Shen Y, Zhang B, Li C, Liu Z. Regulation of endoplasmic reticulum stress on autophagy and apoptosis of nucleus pulposus cells in intervertebral disc degeneration and its related mechanisms. PeerJ 2024; 12:e17212. [PMID: 38666076 PMCID: PMC11044878 DOI: 10.7717/peerj.17212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 03/19/2024] [Indexed: 04/28/2024] Open
Abstract
Intervertebral disc degeneration (IVDD) is a common and frequent disease in orthopedics, which seriously affects the quality of life of patients. Endoplasmic reticulum stress (ERS)-regulated autophagy and apoptosis play an important role in nucleus pulposus (NP) cells in IVDD. Hypoxia and serum deprivation were used to induce NP cells. Cell counting kit-8 (CCK-8) assay was used to detect cell activity and immunofluorescence (IF) was applied for the appraisement of glucose regulated protein 78 (GRP78) and green fluorescent protein (GFP)-light chain 3 (LC3). Cell apoptosis was detected by flow cytometry and the expression of LC3II/I was detected by western blot. NP cells under hypoxia and serum deprivation were induced by lipopolysaccharide (LPS), and intervened by ERS inhibitor (4-phenylbutyric acid, 4-PBA) and activator (Thapsigargin, TP). Then, above functional experiments were conducted again and western blot was employed for the evaluation of autophagy-, apoptosis and ERS-related proteins. Finally, NP cells under hypoxia and serum deprivation were stimulated by LPS and intervened using apoptosis inhibitor z-Val-Ala-DL-Asp-fluoromethyl ketone (Z-VAD-FMK) and autophagy inhibitor 3-methyladenine (3-MA). CCK-8 assay, IF, flow cytometry and western blot were performed again. Besides, the levels of inflammatory cytokines were measured with enzyme-linked immunosorbent assay (ELISA) and the protein expressions of programmed death markers were estimated with western blot. It showed that serum deprivation induces autophagy and apoptosis. ERS was significantly activated by LPS in hypoxic and serum deprivation environment, and autophagy and apoptosis were significantly promoted. Overall, ERS affects the occurrence and development of IVDD by regulating autophagy, apoptosis and other programmed death.
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Affiliation(s)
- Jiuming Dai
- Department of Orthopedics, Binhai County People’s Hospital, Yancheng, China
| | - Jin Liu
- Department of Orthopedics, Binhai County People’s Hospital, Yancheng, China
| | - Yucheng Shen
- Department of Orthopedics, Binhai County People’s Hospital, Yancheng, China
| | - Bing Zhang
- Department of Orthopedics, Binhai County People’s Hospital, Yancheng, China
| | - Chaonian Li
- Department of Traditional Chinese Medicine, Binhai County People’s Hospital, Yancheng, China
| | - Zhidong Liu
- Department of Orthopedics, Binhai County People’s Hospital, Yancheng, China
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Yao Q, He T, Liao JY, Liao R, Wu X, Lin L, Xiao G. Noncoding RNAs in skeletal development and disorders. Biol Res 2024; 57:16. [PMID: 38644509 PMCID: PMC11034114 DOI: 10.1186/s40659-024-00497-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 04/09/2024] [Indexed: 04/23/2024] Open
Abstract
Protein-encoding genes only constitute less than 2% of total human genomic sequences, and 98% of genetic information was previously referred to as "junk DNA". Meanwhile, non-coding RNAs (ncRNAs) consist of approximately 60% of the transcriptional output of human cells. Thousands of ncRNAs have been identified in recent decades, and their essential roles in the regulation of gene expression in diverse cellular pathways associated with fundamental cell processes, including proliferation, differentiation, apoptosis, and metabolism, have been extensively investigated. Furthermore, the gene regulation networks they form modulate gene expression in normal development and under pathological conditions. In this review, we integrate current information about the classification, biogenesis, and function of ncRNAs and how these ncRNAs support skeletal development through their regulation of critical genes and signaling pathways in vivo. We also summarize the updated knowledge of ncRNAs involved in common skeletal diseases and disorders, including but not limited to osteoporosis, osteoarthritis, rheumatoid arthritis, scoliosis, and intervertebral disc degeneration, by highlighting their roles established from in vivo, in vitro, and ex vivo studies.
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Affiliation(s)
- Qing Yao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Tailin He
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jian-You Liao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Rongdong Liao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China
- Department of Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Xiaohao Wu
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Lijun Lin
- Department of Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.
| | - Guozhi Xiao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, 518055, China.
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Shen J, Lan Y, Ji Z, Liu H. Sirtuins in intervertebral disc degeneration: current understanding. Mol Med 2024; 30:44. [PMID: 38553713 PMCID: PMC10981339 DOI: 10.1186/s10020-024-00811-0] [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: 01/09/2024] [Accepted: 03/20/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND Intervertebral disc degeneration (IVDD) is one of the etiologic factors of degenerative spinal diseases, which can lead to a variety of pathological spinal conditions such as disc herniation, spinal stenosis, and scoliosis. IVDD is a leading cause of lower back pain, the prevalence of which increases with age. Recently, Sirtuins/SIRTs and their related activators have received attention for their activity in the treatment of IVDD. In this paper, a comprehensive systematic review of the literature on the role of SIRTs and their activators on IVDD in recent years is presented. The molecular pathways involved in the regulation of IVDD by SIRTs are summarized, and the effects of SIRTs on senescence, inflammatory responses, oxidative stress, and mitochondrial dysfunction in myeloid cells are discussed with a view to suggesting possible solutions for the current treatment of IVDD. PURPOSE This paper focuses on the molecular mechanisms by which SIRTs and their activators act on IVDD. METHODS A literature search was conducted in Pubmed and Web of Science databases over a 13-year period from 2011 to 2024 for the terms "SIRT", "Sirtuin", "IVDD", "IDD", "IVD", "NP", "Intervertebral disc degeneration", "Intervertebral disc" and "Nucleus pulposus". RESULTS According to the results, SIRTs and a large number of activators showed positive effects against IVDD.SIRTs modulate autophagy, myeloid apoptosis, oxidative stress and extracellular matrix degradation. In addition, they attenuate inflammatory factor-induced disc damage and maintain homeostasis during disc degeneration. Several clinical studies have reported the protective effects of some SIRTs activators (e.g., resveratrol, melatonin, honokiol, and 1,4-dihydropyridine) against IVDD. CONCLUSION The fact that SIRTs and their activators play a hundred different roles in IVDD helps to better understand their potential to develop further treatments for IVDD. NOVELTY This review summarizes current information on the mechanisms of action of SIRTs in IVDD and the challenges and limitations of translating their basic research into therapy.
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Affiliation(s)
- Jianlin Shen
- Department of Orthopaedics, Affiliated Hospital of Putian University, Putian, 351100, Fujian, China
- Central Laboratory, Affiliated Hospital of Putian University, Putian, 351100, Fujian, China
| | - Yujian Lan
- School of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Ziyu Ji
- School of Integrated Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China.
| | - Huan Liu
- Department of Orthopaedics, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, Sichuan, China.
- The Third People's Hospital of Longmatan District, Luzhou, 646000, Sichuan, China.
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8
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Yu C, Zhao J, Cheng F, Chen J, Chen J, Xu H, Shi K, Xia K, Ding S, Wang K, Wang R, Chen Y, Li Y, Li H, Chen Q, Yu X, Shao F, Liang C, Li F. Silencing circATXN1 in Aging Nucleus Pulposus Cell Alleviates Intervertebral Disc Degeneration via Correcting Progerin Mislocalization. RESEARCH (WASHINGTON, D.C.) 2024; 7:0336. [PMID: 38533181 PMCID: PMC10964222 DOI: 10.34133/research.0336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 02/17/2024] [Indexed: 03/28/2024]
Abstract
Circular RNAs (circRNAs) play a critical regulatory role in degenerative diseases; however, their functions and therapeutic applications in intervertebral disc degeneration (IVDD) have not been explored. Here, we identified that a novel circATXN1 highly accumulates in aging nucleus pulposus cells (NPCs) accountable for IVDD. CircATXN1 accelerates cellular senescence, disrupts extracellular matrix organization, and inhibits mitochondrial respiration. Mechanistically, circATXN1, regulated by heterogeneous nuclear ribonucleoprotein A2B1-mediated splicing circularization, promotes progerin translocation from the cell nucleus to the cytoplasm and inhibits the expression of insulin-like growth factor 1 receptor (IGF-1R). To demonstrate the therapeutic potential of circATXN1, siRNA targeting the backsplice junction of circATNX1 was screened and delivered by tetrahedral framework nucleic acids (tFNAs) due to their unique compositional and tetrahedral structural features. Our siRNA delivery system demonstrates superior abilities to transfect aging cells, clear intracellular ROS, and enhanced biological safety. Using siRNA-tFNAs to silence circATXN1, aging NPCs exhibit reduced mislocalization of progerin in the cytoplasm and up-regulation of IGF-1R, thereby demonstrating a rejuvenated cellular phenotype and improved mitochondrial function. In vivo, administering an aging cell-adapted siRNA nucleic acid framework delivery system to progerin pathologically expressed premature aging mice (zmpste24-/-) can ameliorate the cellular matrix in the nucleus pulposus tissue, effectively delaying IVDD. This study not only identified circATXN1 functioning as a cell senescence promoter in IVDD for the first time, but also successfully demonstrated its therapeutic potential via a tFNA-based siRNA delivery strategy.
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Affiliation(s)
- Chao Yu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Jing Zhao
- Department of Chemistry,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
| | - Feng Cheng
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Jiangjie Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Jinyang Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Haibin Xu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Kesi Shi
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Kaishun Xia
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Siwen Ding
- Westlake Street Community Health Service Center, Hangzhou 310009, Zhejiang, PR China
| | - Kanbin Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Ronghao Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Yazhou Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Yi Li
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Hao Li
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Qixin Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Xiaohua Yu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Fangwei Shao
- Zhejiang University-University of Illinois at Urbana-Champaign Institute,
Zhejiang University, Haining 314400, Zhejiang, PR China
- Biomedical and Health Translational Research Centre,
Zhejiang University, Haining 314400, Zhejiang, PR China
| | - Chengzhen Liang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Fangcai Li
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
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9
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Wang X, Wu P, Fu Y, Yang R, Li C, Chen Y, He A, Chen X, Ma D, Ma J, Zhang T. The circular RNA expression profile of human auricle cartilage and the role of circCOL1A2 in isolated microtia. Cell Signal 2024; 115:111017. [PMID: 38123043 DOI: 10.1016/j.cellsig.2023.111017] [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: 08/02/2023] [Revised: 11/24/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023]
Abstract
Microtia is one of the most common craniofacial birth defects worldwide, and its primary clinical manifestation is auricle deformity. Epigenetic factors are known to contribute to the etiology of microtia, yet the involvement of circular RNAs (circRNAs) in human auricle development and their association with microtia remains poorly understood. In this study, we aimed to analyze differentially expressed circRNAs and explore their functional implications in isolated microtia. By employing circRNA microarray analysis and bioinformatics approaches, we identified 340 differentially expressed circRNAs in auricle cartilage of patients with isolated microtia, comprising 152 upregulated and 188 downregulated circRNAs. A circRNA-mRNA co-expression network was constructed, followed by gene ontology analysis and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis. Subsequently, we selected four significantly upregulated circRNAs from the co-expression network based on their association with cartilage development and validated their expressions in 30 isolated microtia and 30 control clinical auricle cartilage samples. Among these circRNAs, circCOL1A2, the most significantly upregulated circRNA, was selected as a representative circRNA for investigating its role in isolated microtia. Overexpression of circCOL1A2 significantly inhibited chondrocyte proliferation and chondrogenic differentiation of human mesenchymal stem cells. Additionally, circCOL1A2 upregulated Dermatan Sulfate Epimerase Like (DSEL) expression by sponging miR-637 through the competing endogenous RNA (ceRNA) mechanism. Notably, the downregulation of DSEL attenuated the inhibitory effect of circCOL1A2 overexpression on cell proliferation and chondrogenic differentiation. Collectively, these findings highlight the involvement of circCOL1A2 in the pathogenesis of isolated microtia and emphasize the potential significance of dysregulated circRNAs in disease development.
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Affiliation(s)
- Xin Wang
- ENT Institute, Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - Peixuan Wu
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China.
| | - Yaoyao Fu
- ENT Institute, Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - Run Yang
- ENT Institute, Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China.
| | - Chenlong Li
- ENT Institute, Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - Ying Chen
- ENT Institute, Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - Aijuan He
- ENT Institute, Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China
| | - Xin Chen
- ENT Institute, Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China.
| | - Duan Ma
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China.
| | - Jing Ma
- ENT Institute, Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China.
| | - Tianyu Zhang
- ENT Institute, Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai 200031, China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai 200031, China.
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10
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Sipos F, Műzes G. Sirtuins Affect Cancer Stem Cells via Epigenetic Regulation of Autophagy. Biomedicines 2024; 12:386. [PMID: 38397988 PMCID: PMC10886574 DOI: 10.3390/biomedicines12020386] [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: 12/27/2023] [Revised: 02/01/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Sirtuins (SIRTs) are stress-responsive proteins that regulate several post-translational modifications, partly by acetylation, deacetylation, and affecting DNA methylation. As a result, they significantly regulate several cellular processes. In essence, they prolong lifespan and control the occurrence of spontaneous tumor growth. Members of the SIRT family have the ability to govern embryonic, hematopoietic, and other adult stem cells in certain tissues and cell types in distinct ways. Likewise, they can have both pro-tumor and anti-tumor effects on cancer stem cells, contingent upon the specific tissue from which they originate. The impact of autophagy on cancer stem cells, which varies depending on the specific circumstances, is a very intricate phenomenon that has significant significance for clinical and therapeutic purposes. SIRTs exert an impact on the autophagy process, whereas autophagy reciprocally affects the activity of certain SIRTs. The mechanism behind this connection in cancer stem cells remains poorly understood. This review presents the latest findings that position SIRTs at the point where cancer cells and autophagy interact. Our objective is to highlight the various roles of distinct SIRTs in cancer stem cell-related functions through autophagy. This would demonstrate their significance in the genesis and recurrence of cancer and offer a more precise understanding of their treatment possibilities in relation to autophagy.
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Affiliation(s)
- Ferenc Sipos
- Immunology Division, Department of Internal Medicine and Hematology, Semmelweis University, 1088 Budapest, Hungary;
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11
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Xie G, Wu T, Ji G, Wu H, Lai Y, Wei B, Huang W. Circular RNA and intervertebral disc degeneration: unravelling mechanisms and implications. Front Mol Biosci 2023; 10:1302017. [PMID: 38192334 PMCID: PMC10773835 DOI: 10.3389/fmolb.2023.1302017] [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: 09/25/2023] [Accepted: 12/05/2023] [Indexed: 01/10/2024] Open
Abstract
Low back pain (LBP) is a major public health problem worldwide and a significant health and economic burden. Intervertebral disc degeneration (IDD) is the reason for LBP. However, we have not identified effective therapeutic strategies to address this challenge. With accumulating knowledge on the role of circular RNAs in the pathogenesis of IDD, we realised that circular RNAs (circRNAs) may have tremendous therapeutic potential and clinical application prospects in this field. This review presents an overview of the current understanding of characteristics, classification, biogenesis, and function of circRNAs and summarises the protective and detrimental circRNAs involved in the intervertebral disc that have been studied thus far. This review is aimed to help researchers better understand the regulatory role of circRNAs in the progression of IDD, reveal their clinical therapeutic potential, and provide a theoretical basis for the prevention and targeted treatment of IDD.
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Affiliation(s)
- Guohao Xie
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Tingrui Wu
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Guangju Ji
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hang Wu
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yue Lai
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Bo Wei
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Wenhua Huang
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- Guangdong Medical Innovation Platform for Translation of 3D Printing Application, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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12
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Li Z, Ren Y, Lv Z, Li M, Li Y, Fan X, Xiong Y, Qian L. Decrypting the circular RNAs does a favor for us: Understanding, diagnosing and treating diabetes mellitus and its complications. Biomed Pharmacother 2023; 168:115744. [PMID: 37862970 DOI: 10.1016/j.biopha.2023.115744] [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: 07/11/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 10/22/2023] Open
Abstract
Circular RNAs (circRNAs), a novel type of single-stranded noncoding RNAs with a covalently closed loop structure, are generated in a circular conformation via non-canonical splicing or back-splicing events. Functionally, circRNAs have been elucidated to soak up microRNAs (miRNAs) and RNA binding proteins (RBPs), serve as protein scaffolds, maintain mRNA stability, and regulate gene transcription and translation. Notably, circRNAs are strongly implicated in the regulation of β-cell functions, insulin resistance, adipocyte functions, inflammation as well as oxidative stress via acting as miRNA sponges and RBP sponges. Basic and clinical studies have demonstrated that aberrant alterations of circRNAs expressions are strongly associated with the initiation and progression of diabetes mellitus (DM) and its complications. Here in this review, we present a summary of the biogenesis, transportation, degradation and functions of circRNAs, and highlight the recent findings on circRNAs and their action mechanisms in DM and its complications. Overall, this review should contribute greatly to our understanding of circRNAs in DM pathogenesis, offering insights into the further perspectives of circRNAs for DM diagnosis and therapy.
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Affiliation(s)
- Zi Li
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, PR China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, PR China
| | - Yuanyuan Ren
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, PR China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, PR China
| | - Ziwei Lv
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, PR China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, PR China
| | - Man Li
- Department of Endocrinology, Xi' an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, PR China
| | - Yujia Li
- Department of Endocrinology, Xi' an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, PR China
| | - Xiaobin Fan
- Department of Obstetrics and Gynecology, Xi' an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, PR China
| | - Yuyan Xiong
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, PR China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences and Medicine, Northwest University, Xi'an, PR China.
| | - Lu Qian
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, PR China; Department of Endocrinology, Xi' an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi, PR China.
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13
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Li Y, Zhou S, Hu X, Lu S. The pathological mechanisms of circRNAs in mediating intervertebral disc degeneration. Noncoding RNA Res 2023; 8:633-640. [PMID: 37780894 PMCID: PMC10539873 DOI: 10.1016/j.ncrna.2023.09.004] [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: 08/22/2023] [Revised: 09/14/2023] [Accepted: 09/17/2023] [Indexed: 10/03/2023] Open
Abstract
Lower back pain (LBP) is a worldwide health problem associated with significant economic and social burden. Intervertebral disc degeneration (IVDD) is a leading cause of LBP. Several studies show that the death of nucleus pulposus cells (NPCs), abnormal metabolism of the extracellular matrix (ECM), and inflammatory response are the key mechanisms behind the pathogenesis of IVDD. Circular RNAs (circRNAs) are key regulators of gene expression and play a significant role in regulating NPCs death, ECM homeostasis, and inflammatory response by acting as microRNAs (miRNAs) sponges in IVDD. However, the regulatory role of circRNAs in mediating IVDD remains unknown. This review comprehensively describes the normal anatomic structure and function of IVD, the pathogenesis of IVDD, the characteristics, synthesis, mechanisms, and function of circRNAs. Moreover, we highlighted the 23 circRNAs that mediate ECM metabolism, 16 circRNAs that mediate NPCs apoptosis, circ_0004354 and circ_0040039 that mediate NPCs pyroptosis, and 5 circRNAs that mediate inflammatory response in IVDD. In addition, this review presents suggestions for future studies, such as the need for further investigation on ferroptosis-related circRNAs in IVDD. This review could provide novel insights into the pathogenesis and treatment of IVDD.
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Affiliation(s)
- Yongjin Li
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng District, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Suzhe Zhou
- Department of Orthopedics, Anhui No 2 Provincial People's Hospital, Hefei, China
| | - Xinli Hu
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng District, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Shibao Lu
- Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No. 45 Changchun Street, Xicheng District, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
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14
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Maiese K. Cornerstone Cellular Pathways for Metabolic Disorders and Diabetes Mellitus: Non-Coding RNAs, Wnt Signaling, and AMPK. Cells 2023; 12:2595. [PMID: 37998330 PMCID: PMC10670256 DOI: 10.3390/cells12222595] [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: 09/21/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023] Open
Abstract
Metabolic disorders and diabetes (DM) impact more than five hundred million individuals throughout the world and are insidious in onset, chronic in nature, and yield significant disability and death. Current therapies that address nutritional status, weight management, and pharmacological options may delay disability but cannot alter disease course or functional organ loss, such as dementia and degeneration of systemic bodily functions. Underlying these challenges are the onset of aging disorders associated with increased lifespan, telomere dysfunction, and oxidative stress generation that lead to multi-system dysfunction. These significant hurdles point to the urgent need to address underlying disease mechanisms with innovative applications. New treatment strategies involve non-coding RNA pathways with microRNAs (miRNAs) and circular ribonucleic acids (circRNAs), Wnt signaling, and Wnt1 inducible signaling pathway protein 1 (WISP1) that are dependent upon programmed cell death pathways, cellular metabolic pathways with AMP-activated protein kinase (AMPK) and nicotinamide, and growth factor applications. Non-coding RNAs, Wnt signaling, and AMPK are cornerstone mechanisms for overseeing complex metabolic pathways that offer innovative treatment avenues for metabolic disease and DM but will necessitate continued appreciation of the ability of each of these cellular mechanisms to independently and in unison influence clinical outcome.
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Affiliation(s)
- Kenneth Maiese
- Cellular and Molecular Signaling, New York, NY 10022, USA
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15
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Sun R, Zhu J, Sun K, Gao L, Zheng B, Shi J. Strontium Ranelate Ameliorates Intervertebral Disc Degeneration via Regulating TGF-β1/NF-κB Axis. Int J Med Sci 2023; 20:1679-1697. [PMID: 37928874 PMCID: PMC10620869 DOI: 10.7150/ijms.86665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/15/2023] [Indexed: 11/07/2023] Open
Abstract
Intervertebral disc degeneration (IVDD) is a prevalent and debilitating condition characterized by chronic back pain and reduced quality of life. Strontium ranelate (SRR) is a compound traditionally used for treating osteoporosis via activating TGF-β1 signaling pathway. Recent studies have proved the anti-inflammatory effect of SRR on chondrocytes. Although the exact mechanism of IVDD remains unclear, accumulating evidences have emphasized the involvement of multifactorial pathogenesis including inflammation, oxidative stress damage, and etc. However, the biological effect of SRR on IVDD and its molecular mechanism has not been investigated. Firstly, this study proved the decreased expression of Transforming Growth Factor-beta 1(TGF-β1) in degenerated human intervertebral disc tissues. Subsequently, we confirmed for the first time that SRR could promote cell proliferation, mitigate inflammation and oxidative stress in human nucleus pulposus cells in vitro via increasing the expression of TGF-β1 and suppressing the Nuclear Factor Kappa-Light-Chain-Enhancer of Activated B Cells (NF-κB) pathway. The molecular docking result proved the interaction between SRR and TGF-β1 protein. To further verify this interaction, gain- and loss- of function experiments were conducted. We discovered that both TGF-β1 knockdown and overexpression influenced the activation of the NF-κB pathway. Taken together, SRR could mitigate IL-1β induced-cell dysfunction in human nucleus pulposus cells by regulating TGF-β1/NF-κB axis in vitro. Finally, the in vivo therapeutic effect of SRR on IVDD was confirmed. Our findings may contribute to the understanding of the complex interplay between inflammation and degenerative processes in the intervertebral disc and provide valuable insights into the development of targeted treatment-based therapeutics for IVDD.
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Affiliation(s)
- Ruping Sun
- School of Health Science and Engineering, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China
| | - Jian Zhu
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai 200003, China
| | - Kaiqiang Sun
- Department of Orthopaedic Surgery, Naval Medical Center, Naval Medical University, Shanghai 200433, China
| | - Lu Gao
- Department of Department of Physiology, Naval Medical University, Shanghai 200433, China
| | - Bing Zheng
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai 200003, China
| | - Jiangang Shi
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai 200003, China
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16
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Xu H, Li J, Fei Q, Jiang L. Contribution of immune cells to intervertebral disc degeneration and the potential of immunotherapy. Connect Tissue Res 2023; 64:413-427. [PMID: 37161923 DOI: 10.1080/03008207.2023.2212051] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 05/02/2023] [Accepted: 05/03/2023] [Indexed: 05/11/2023]
Abstract
Substantial evidence supports that chronic low back pain is associated with intervertebral disc degeneration (IDD), which is accompanied by decreased cell activity and matrix degradation. The role of immune cells, especially macrophages, in a variety of diseases has been extensively studied; therefore, their role in IDD has naturally attracted widespread scholarly interest. The IVD is considered to be an immunologically-privileged site given the presence of physical and biological barriers that include an avascular microenvironment, a high proteoglycan concentration, high physical pressure, the presence of apoptosis inducers such as Fas ligand, and the presence of notochordal cells. However, during IDD, immune cells with distinct characteristics appear in the IVD. Some of these immune cells release factors that promote the inflammatory response and angiogenesis in the disc and are, therefore, important drivers of IDD. Although some studies have elucidated the role of immune cells, no specific strategies related to systemic immunotherapy have been proposed. Herein, we summarize current knowledge of the presence and role of immune cells in IDD and consider that immunotherapy targeting immune cells may be a novel strategy for alleviating IDD symptoms.
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Affiliation(s)
- Hao Xu
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Juan Li
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qinming Fei
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Libo Jiang
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Xiamen, Fujian Province, China
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17
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Wang D, Li B, Wang S, Hao Y, Wang H, Sun W, Cao J, Zhou X, Zheng B. Engineered inhaled nanocatalytic therapy for ischemic cerebrovascular disease by inducing autophagy of abnormal mitochondria. NPJ Regen Med 2023; 8:44. [PMID: 37567914 PMCID: PMC10421937 DOI: 10.1038/s41536-023-00315-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 07/18/2023] [Indexed: 08/13/2023] Open
Abstract
Mitochondrial dysfunction and subsequent accumulation of reactive oxygen species (ROS) are key contributors to the pathology of ischemic cerebrovascular disease. Therefore, elimination of ROS and damaged mitochondria is crucial for the effective treatment of this disease. For this purpose, we designed an inhalation nanotherapeutic agent, P/D@Mn/Co3O4, to treat ischemic cerebrovascular disease. Mn/Co3O4 effectively removed excess ROS from cells, reduced acute cellular oxidative stress, and protected neural cells from apoptosis. Furthermore, it depleted the H+ surrounding mitochondria and depolarized the mitochondrial membrane potential, inducing mitophagy and eliminating abnormal mitochondria, thereby avoiding the continuous overproduction of ROS by eliminating the source of ROS regeneration. On intranasal administration, Mn/Co3O4 encapsulated by platelet membranes and 2,3-(dioxy propyl)-trimethylammonium chloride can bypass the blood-brain barrier, enter the brain through the trigeminal and olfactory pathways, and target inflammatory regions to remove ROS and damaged mitochondria from the lesion area. In rat models of stroke and vascular dementia, P/D@Mn/Co3O4 effectively inhibited the symptoms of acute and chronic cerebral ischemia by scavenging ROS and damaged mitochondria in the affected area. Our findings indicate that the nanotherapeutic agent developed in this study can be used for the effective treatment of ischemic cerebrovascular disease.
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Affiliation(s)
- Deping Wang
- Academy of Medical Engineering and Translational Medicine, Tianjin Key Laboratory of Brain Science and Neural Engineering, Xincheng Hospital of Tianjin University, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Cellular Physiology, Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, 030001, China
| | - Bowen Li
- Academy of Medical Engineering and Translational Medicine, Tianjin Key Laboratory of Brain Science and Neural Engineering, Xincheng Hospital of Tianjin University, Tianjin University, Tianjin, 300072, China
| | - Shuchao Wang
- Academy of Medical Engineering and Translational Medicine, Tianjin Key Laboratory of Brain Science and Neural Engineering, Xincheng Hospital of Tianjin University, Tianjin University, Tianjin, 300072, China
| | - Yingjian Hao
- Key Laboratory of Cellular Physiology, Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, 030001, China
| | - Hua Wang
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, China
| | - Wei Sun
- Academy of Medical Engineering and Translational Medicine, Tianjin Key Laboratory of Brain Science and Neural Engineering, Xincheng Hospital of Tianjin University, Tianjin University, Tianjin, 300072, China
| | - Jimin Cao
- Key Laboratory of Cellular Physiology, Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, 030001, China.
| | - Xin Zhou
- Key Laboratory of Cellular Physiology, Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, 030001, China.
| | - Bin Zheng
- Academy of Medical Engineering and Translational Medicine, Tianjin Key Laboratory of Brain Science and Neural Engineering, Xincheng Hospital of Tianjin University, Tianjin University, Tianjin, 300072, China.
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Chen Z, Song J, Xie L, Xu G, Zheng C, Xia X, Lu F, Ma X, Zou F, Jiang J, Wang H. N6-methyladenosine hypomethylation of circGPATCH2L regulates DNA damage and apoptosis through TRIM28 in intervertebral disc degeneration. Cell Death Differ 2023; 30:1957-1972. [PMID: 37438603 PMCID: PMC10406905 DOI: 10.1038/s41418-023-01190-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/31/2023] [Accepted: 06/29/2023] [Indexed: 07/14/2023] Open
Abstract
Circular RNAs (circRNAs) are a class of noncoding RNAs that have been found to be involved in intervertebral disc degeneration (IVDD) progression, and N6-methyladenosine (m6A) broadly exists in circRNAs. Here, we identified circGPATCH2L with a low m6A methylation level to be upregulated in degenerative nucleus pulposus tissues. Mechanistically, as a protein decoy for tripartite motif containing 28 (TRIM28) within aa 402-452 region, circGPATCH2L abrogates the phosphorylation of TRIM28 and inhibits P53 degradation, which contributes to DNA damage accumulation and cellular apoptosis and leads to IVDD progression. Moreover, m6A-methylated circGPATCH2L is recognised and endoribonucleolytically cleaved by a YTHDF2-RPL10-RNase P/MRP complex to maintain the physiological state of nucleus pulposus cells. Thus, our data show the physiological significance of m6A modification in regulating circRNA abundance and provide a potentially effective therapeutic target for the treatment of IVDD.
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Affiliation(s)
- Zhenhao Chen
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, 200000, China
| | - Jian Song
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, 200000, China
| | - Lin Xie
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Guangyu Xu
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, 200000, China
| | - Chaojun Zheng
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, 200000, China
| | - Xinlei Xia
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, 200000, China
| | - Feizhou Lu
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, 200000, China
- Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, Shanghai, 200000, China
| | - Xiaosheng Ma
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, 200000, China
| | - Fei Zou
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, 200000, China.
| | - Jianyuan Jiang
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, 200000, China.
| | - Hongli Wang
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, 200000, China.
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19
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Xiong L, Li X, Hua X, Qian Z. Circ-STC2 promotes the ferroptosis of nucleus pulposus cells via targeting miR-486-3p/TFR2 axis. J Orthop Surg Res 2023; 18:518. [PMID: 37480032 PMCID: PMC10362726 DOI: 10.1186/s13018-023-04010-1] [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: 01/09/2023] [Accepted: 07/14/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND Low back pain (LBP) has become the second leading cause of disability worldwide, which has brought great economic burden to people. It is generally believed that intervertebral disc degeneration (IDD) is the main cause of LBP. This study aimed to explore the role of circ-STC2 in the pathogenesis of IDD. METHODS Nucleus pulposus cells (NPCs) were treated with T-Butyl Hydrogen Peroxide (TBHP) to establish IDD model in vitro. RT-qPCR was performed to detect mRNA expressions. The cell viability was detected with CCK-8 assay. The levels of lactate dehydrogenase (LDH), malondialdehyde (MDA), Fe2+ and glutathione (GSH) of NPCs were measured by corresponding kits. The protein expressions were determined by western blot. Dual-luciferase reporter and RNA pull-down assays were conducted to verify the relationship between circ-STC2 or transferrin recepto 2 (TFR2) and miR-486-3p. RESULTS Circ-STC2 and TFR2 expressions were up-regulated in IDD tissues, and miR-486-3p expression was down-regulated. Knockdown of circ-STC2 promoted the cell viability and inhibited the ferroptosis of the NPCs. The GSH levels, and glutathione peroxidase 4 (GPX4) and solute carrier family 7 member 11 (SLC7A11) protein expressions were increased, the LDH, MDA and Fe2+ levels and achaete-scute complexlike 4 (ASCL4) protein expressions were decreased after circ-STC2 knockdown. Knockdown of miR-486-3p abrogated the si-circ-STC2 effects and overexpression of TFR2 reversed the miR-486-3p mimic effects. CONCLUSIONS Circ-STC2 inhibits the cell viability, induced the ferroptosis of the TBHP treated NPCs via targeting miR-486-3p/TFR2 axis.
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Affiliation(s)
- Liangping Xiong
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, 899 Pinghai Road, Suzhou, 215006, Jiangsu, China
- Department of Orthopedic Surgery, The First People's Hospital of Jiande, Hangzhou, China
| | - Xiaoyan Li
- Department of Orthopedic Surgery, Affiliated Hospital of Jining Medical University, Jining, China
| | - Xi Hua
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, 899 Pinghai Road, Suzhou, 215006, Jiangsu, China
| | - Zhonglai Qian
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, 899 Pinghai Road, Suzhou, 215006, Jiangsu, China.
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20
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Sun C, Bai S, Liang Y, Liu D, Liao J, Chen Y, Zhao X, Wu B, Huang D, Chen M, Wu D. The role of Sirtuin 1 and its activators in age-related lung disease. Biomed Pharmacother 2023; 162:114573. [PMID: 37018986 DOI: 10.1016/j.biopha.2023.114573] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/10/2023] [Accepted: 03/21/2023] [Indexed: 04/05/2023] Open
Abstract
Aging is a major driving factor in lung diseases. Age-related lung disease is associated with downregulated expression of SIRT1, an NAD+-dependent deacetylase that regulates inflammation and stress resistance. SIRT1 acts by inducing the deacetylation of various substrates and regulates several mechanisms that relate to lung aging, such as genomic instability, lung stem cell exhaustion, mitochondrial dysfunction, telomere shortening, and immune senescence. Chinese herbal medicines have many biological activities, exerting anti-inflammatory, anti-oxidation, anti-tumor, and immune regulatory effects. Recent studies have confirmed that many Chinese herbs have the effect of activating SIRT1. Therefore, we reviewed the mechanism of SIRT1 in age-related lung disease and explored the potential roles of Chinese herbs as SIRT1 activators in the treatment of age-related lung disease.
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21
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Zhu J, Sun R, Yan C, Sun K, Gao L, Zheng B, Shi J. Hesperidin mitigates oxidative stress-induced ferroptosis in nucleus pulposus cells via Nrf2/NF-κB axis to protect intervertebral disc from degeneration. Cell Cycle 2023; 22:1196-1214. [PMID: 37055945 PMCID: PMC10193898 DOI: 10.1080/15384101.2023.2200291] [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: 11/10/2022] [Revised: 03/11/2023] [Accepted: 04/03/2023] [Indexed: 04/15/2023] Open
Abstract
Intervertebral disc degeneration (IVDD), a widely known contributor to low back pain (LBP), has been proved to be a global health challenging conundrum. Hesperidin (hesperetin-7-O-rutinoside, HRD) is a flavanone glycoside that belongs to the subgroup of citrus flavonoids with therapeutic effect on various diseases due to its anti-inflammatory, antioxidant properties. However, the effect of HRD on IVDD remains elusive. The human nucleus pulposus tissues were harvested for isolating human nucleus pulposus (HNP) cells to verify the expression of Nrf2. The biological effect of HRD on HNP cells were assessed in vitro, and the in vivo therapeutic effects of HRD were assessed in mice. Firstly, we found that the expression of Nrf2 was decreased with the progression of degeneration in degenerated human nucleus pulposus tissue. Subsequently, we confirmed that HRD could mitigate oxidative stress-induced ferroptosis in nucleus pulposus cells via enhancing the expression of Nrf2 axis and suppressing the NF-κB pathway to protect intervertebral disc from degeneration in vitro. Finally, the therapeutic effects of HRD were confirmed in vivo. The current study proved for the first time that HRD may protect HNP cells from degeneration by suppressing ferroptosis in an oxidative stress-dependent via enhancing the expression of Nrf2 and suppressing the NF-κB pathway. The evidence will provide a possible basis for future targeted treatment for IVDD.
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Affiliation(s)
- Jian Zhu
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Ruping Sun
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Chen Yan
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Kaiqiang Sun
- Department of Orthopaedic Surgery, Naval Medical Center, Naval Medical University, Shanghai, China
| | - Lu Gao
- Department of Department of Physiology, Naval Medical University, Shanghai, China
| | - Bing Zheng
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Jiangang Shi
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, China
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22
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Mu YR, Zou SY, Li M, Ding YY, Huang X, He ZH, Kong WJ. Role and mechanism of FOXG1-related epigenetic modifications in cisplatin-induced hair cell damage. Front Mol Neurosci 2023; 16:1064579. [PMID: 37181652 PMCID: PMC10169754 DOI: 10.3389/fnmol.2023.1064579] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 04/11/2023] [Indexed: 05/16/2023] Open
Abstract
Cisplatin is widely used in clinical tumor chemotherapy but has severe ototoxic side effects, including tinnitus and hearing damage. This study aimed to determine the molecular mechanism underlying cisplatin-induced ototoxicity. In this study, we used CBA/CaJ mice to establish an ototoxicity model of cisplatin-induced hair cell loss, and our results showed that cisplatin treatment could reduce FOXG1 expression and autophagy levels. Additionally, H3K9me2 levels increased in cochlear hair cells after cisplatin administration. Reduced FOXG1 expression caused decreased microRNA (miRNA) expression and autophagy levels, leading to reactive oxygen species (ROS) accumulation and cochlear hair cell death. Inhibiting miRNA expression decreased the autophagy levels of OC-1 cells and significantly increased cellular ROS levels and the apoptosis ratio in vitro. In vitro, overexpression of FOXG1 and its target miRNAs could rescue the cisplatin-induced decrease in autophagy, thereby reducing apoptosis. BIX01294 is an inhibitor of G9a, the enzyme in charge of H3K9me2, and can reduce hair cell damage and rescue the hearing loss caused by cisplatin in vivo. This study demonstrates that FOXG1-related epigenetics plays a role in cisplatin-induced ototoxicity through the autophagy pathway, providing new ideas and intervention targets for treating ototoxicity.
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Affiliation(s)
- Yu-rong Mu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sheng-yu Zou
- Department of Otorhinolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ming Li
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan-yan Ding
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Huang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zu-hong He
- Department of Otorhinolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wei-jia Kong
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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23
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Zhu J, Sun R, Sun K, Yan C, Jiang J, Kong F, Shi J. The deubiquitinase USP11 ameliorates intervertebral disc degeneration by regulating oxidative stress-induced ferroptosis via deubiquitinating and stabilizing Sirt3. Redox Biol 2023; 62:102707. [PMID: 37099926 PMCID: PMC10149406 DOI: 10.1016/j.redox.2023.102707] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/11/2023] [Accepted: 04/20/2023] [Indexed: 04/28/2023] Open
Abstract
Increasing studies have reported that intervertebral disc degeneration (IVDD) is the main contributor and independent risk factor for low back pain (LBP), it would be, therefore, enlightening that investigating the exact pathogenesis of IVDD and developing target-specific molecular drugs in the future. Ferroptosis is a new form of programmed cell death characterized by glutathione (GSH) depletion, and inactivation of the regulatory core of the antioxidant system (glutathione system) GPX4. The close relationship of oxidative stress and ferroptosis has been studied in various of diseases, but the crosstalk between of oxidative stress and ferroptosis has not been explored in IVDD. At the beginning of the current study, we proved that Sirt3 decreases and ferroptosis occurs after IVDD. Next, we found that knockout of Sirt3 (Sirt3-/-) promoted IVDD and poor pain-related behavioral scores via increasing oxidative stress-induced ferroptosis. The (immunoprecipitation coupled with mass spectrometry) IP/MS and co-IP demonstrated that USP11 was identified to stabilize Sirt3 via directly binding to Sirt3 and deubiquitinating Sirt3. Overexpression of USP11 significantly ameliorate oxidative stress-induced ferroptosis, thus relieving IVDD by increasing Sirt3. Moreover, knockout of USP11 in vivo (USP11-/-) resulted in exacerbated IVDD and poor pain-related behavioral scores, which could be reversed by overexpression of Sirt3 in intervertebral disc. In conclusion, the current study emphasized the importance of the interaction of USP11 and Sirt3 in the pathological process of IVDD via regulating oxidative stress-induced ferroptosis, and USP11-mediated oxidative stress-induced ferroptosis is identified as a promising target for treating IVDD.
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Affiliation(s)
- Jian Zhu
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai, 200003, China
| | - Ruping Sun
- School of Health Science and Engineering, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai, 200093, China
| | - Kaiqiang Sun
- Department of Orthopaedic Surgery, Naval Medical Center, Naval Medical University, Shanghai, 200433, China
| | - Chen Yan
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai, 200003, China
| | - Jialin Jiang
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai, 200003, China
| | - Fanqi Kong
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai, 200003, China
| | - Jiangang Shi
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, No.415 Fengyang Road, Shanghai, 200003, China.
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24
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Silwal P, Nguyen-Thai AM, Mohammad HA, Wang Y, Robbins PD, Lee JY, Vo NV. Cellular Senescence in Intervertebral Disc Aging and Degeneration: Molecular Mechanisms and Potential Therapeutic Opportunities. Biomolecules 2023; 13:686. [PMID: 37189433 PMCID: PMC10135543 DOI: 10.3390/biom13040686] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/10/2023] [Accepted: 04/17/2023] [Indexed: 05/17/2023] Open
Abstract
Closely associated with aging and age-related disorders, cellular senescence (CS) is the inability of cells to proliferate due to accumulated unrepaired cellular damage and irreversible cell cycle arrest. Senescent cells are characterized by their senescence-associated secretory phenotype that overproduces inflammatory and catabolic factors that hamper normal tissue homeostasis. Chronic accumulation of senescent cells is thought to be associated with intervertebral disc degeneration (IDD) in an aging population. This IDD is one of the largest age-dependent chronic disorders, often associated with neurological dysfunctions such as, low back pain, radiculopathy, and myelopathy. Senescent cells (SnCs) increase in number in the aged, degenerated discs, and have a causative role in driving age-related IDD. This review summarizes current evidence supporting the role of CS on onset and progression of age-related IDD. The discussion includes molecular pathways involved in CS such as p53-p21CIP1, p16INK4a, NF-κB, and MAPK, and the potential therapeutic value of targeting these pathways. We propose several mechanisms of CS in IDD including mechanical stress, oxidative stress, genotoxic stress, nutritional deprivation, and inflammatory stress. There are still large knowledge gaps in disc CS research, an understanding of which will provide opportunities to develop therapeutic interventions to treat age-related IDD.
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Affiliation(s)
- Prashanta Silwal
- Ferguson Laboratory for Spine Research, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Allison M. Nguyen-Thai
- Ferguson Laboratory for Spine Research, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Haneef Ahamed Mohammad
- Department of Health Information Management, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Yanshan Wang
- Department of Health Information Management, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Paul D. Robbins
- Institute of the Biology of Aging and Metabolism and Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Joon Y. Lee
- Ferguson Laboratory for Spine Research, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Nam V. Vo
- Ferguson Laboratory for Spine Research, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA 15261, USA
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25
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Ao X, Ding W, Li X, Xu Q, Chen X, Zhou X, Wang J, Liu Y. Non-coding RNAs regulating mitochondrial function in cardiovascular diseases. J Mol Med (Berl) 2023; 101:501-526. [PMID: 37014377 DOI: 10.1007/s00109-023-02305-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/14/2023] [Accepted: 03/13/2023] [Indexed: 04/05/2023]
Abstract
Cardiovascular disease (CVD) is the leading cause of disease-related death worldwide and a significant obstacle to improving patients' health and lives. Mitochondria are core organelles for the maintenance of myocardial tissue homeostasis, and their impairment and dysfunction are considered major contributors to the pathogenesis of various CVDs, such as hypertension, myocardial infarction, and heart failure. However, the exact roles of mitochondrial dysfunction involved in CVD pathogenesis remain not fully understood. Non-coding RNAs (ncRNAs), particularly microRNAs, long non-coding RNAs, and circular RNAs, have been shown to be crucial regulators in the initiation and development of CVDs. They can participate in CVD progression by impacting mitochondria and regulating mitochondrial function-related genes and signaling pathways. Some ncRNAs also exhibit great potential as diagnostic and/or prognostic biomarkers as well as therapeutic targets for CVD patients. In this review, we mainly focus on the underlying mechanisms of ncRNAs involved in the regulation of mitochondrial functions and their role in CVD progression. We also highlight their clinical implications as biomarkers for diagnosis and prognosis in CVD treatment. The information reviewed herein could be extremely beneficial to the development of ncRNA-based therapeutic strategies for CVD patients.
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Affiliation(s)
- Xiang Ao
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao, 266021, China
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Wei Ding
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266021, China
| | - Xiaoge Li
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Qingling Xu
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Xinhui Chen
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Xuehao Zhou
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Jianxun Wang
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Ying Liu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao, 266021, China.
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26
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Meng F, Shen F, Chu X, Ling H, Qiao Y, Liu D. Hsa_circ_0008500 inhibits apoptosis of adipose-derived stem cells under high glucose through hsa-miR-1273h-5p/ELK1 axis. ENVIRONMENTAL TOXICOLOGY 2023. [PMID: 37014014 DOI: 10.1002/tox.23801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/19/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
Preliminary researches have confirmed that the number of apoptosis of adipose tissue-derived stem cells (ADSCs) in patients with diabetes is significantly increased, leading to a difficult healing wound. Increasing researches revealed that circular RNAs (circRNAs) can control apoptosis. However, it is still unclear whether and how circRNAs are critical for regulating ADSCs apoptosis. In this study, we utilized in vitro model in which ADSCs were cultivated with normal glucose (NG) (5.5 mM) or high glucose (HG) (25 mM) medium, respectively, and found that more apoptotic ADSCs were observed in HG medium comparing to ADSCs in NG medium. Furthermore, we found that hsa_circ_0008500 attenuated HG-mediated ADSCs apoptosis. In addition, Hsa_circ_0008500 could directly interact with hsa-miR-1273h-5p, acting as a miRNA sponge, which subsequently suppressed Ets-like protein-1(ELK1) expression, the downstream target of hsa-miR-1273h-5p. Thus, these results indicated that targeting the hsa_circ_0008500/hsa-miR-1273h-5p/ELK1 signaling pathway in ADSCs may be a potential target for repairing diabetic wounds.
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Affiliation(s)
- Fandong Meng
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
- Department of Endocrinology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Fengjie Shen
- Department of Endocrinology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Xuan Chu
- Department of Endocrinology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Hongwei Ling
- Department of Endocrinology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, China
| | - Yun Qiao
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Deshan Liu
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
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27
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miR-4478 Accelerates Nucleus Pulposus Cells Apoptosis Induced by Oxidative Stress by Targeting MTH1. Spine (Phila Pa 1976) 2023; 48:E54-E69. [PMID: 36130054 PMCID: PMC9897280 DOI: 10.1097/brs.0000000000004486] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 08/31/2022] [Indexed: 02/01/2023]
Abstract
OBJECTIVES Low back pain is the leading cause of disability in the elderly population and is strongly associated with intervertebral disk degeneration (IVDD). However, the precise molecular mechanisms regulating IVDD remain elusive. This study aimed to investigate the role of differentially expressed miRNAs in the pathogenesis of IVDD. MATERIALS AND METHODS We analyzed miRNA microarray datasets to identify differentially expressed miRNAs in IVDD progression and conducted quantitative real-time polymerase chain reaction and fluorescence in situ hybridization analysis to further confirm the differential expression of miR-4478 in nucleus pulposus (NP) tissues of patients diagnosed with IVDD. Using public databases of miRNA-mRNA interactions, we predicted the target genes of miR-4478, and subsequent flow cytometry and western blot analyses demonstrated the effect of MTH1 in H 2 O 2 -induced nucleus pulposus cells (NPCs) apoptosis. Finally, miR-4478 inhibitor was injected into NP tissues of the IVDD mouse model to explore the effect of miR-4478 in vivo. RESULTS miR-4478 was upregulated in NP tissues from IVDD patients. Silencing of miR-4478 inhibits H 2 O 2 -induced NPCs apoptosis. MTH1 was identified as a target gene for miR-4478, and miR-4478 regulates H 2 O 2 -induced NPCs apoptosis by modulating MTH1. In addition, downregulation of miR-4478 alleviated IVDD in a mouse model. CONCLUSIONS In summary, our study provides evidence that miR-4478 may aggravate IVDD through its target gene MTH1 by accelerating oxidative stress in NPCs and demonstrates that miR-4478 has therapeutic potential in IVDD treatment.
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28
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Chen D, Jiang X, Zou H. hASCs-derived exosomal miR-155-5p targeting TGFβR2 promotes autophagy and reduces pyroptosis to alleviate intervertebral disc degeneration. J Orthop Translat 2023; 39:163-176. [PMID: 36950198 PMCID: PMC10025964 DOI: 10.1016/j.jot.2023.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 02/06/2023] [Accepted: 02/16/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND Intervertebral disc degeneration (IDD) is a complex chronic disease involving nucleus pulposus cells (NPCs) senescence, apoptosis, autophagy and extracellular matrix (ECM) degradation. In this study, we aimed to investigate the role of human adipose tissue stem cells (hASCs)-derived exosomal miR-155-5p targeting TGFβR2 in IDD and the mechanisms involved. Then miRNA sequencing was performed, and hASCs-derived Exo (hASCs-Exo) was extracted and characterized. METHODS First, NPCs were treated with different concentrations of LPS. Then miRNA sequencing was performed, and hASCs-Exo was extracted and characterized. NPCs were treated with PBS or autophagy inhibitor 3-MA. NPCs were transfected with miR-155-5p mimic, si-TGFβR2 and negative control. Cell viability, apoptosis, ROS, caspase-1+PI, pyroptosis markers, inflammatory cytokines, autophagy markers, Aggrecan, MMP13, and Akt/mTOR pathway-related factors were measured. Bioinformatics prediction and dual-luciferase were performed to verify the binding sites of miR-155-5p to TGFβR2. Finally, we validated the role of hASCs-derived exosomal miR-155-5p on IDD in vivo. RESULTS LPS promoted pyroptosis of NPCs, and inhibited autophagy and ECM synthesis. MiR-155-5p was characterized as an inflammation-related miRNA in NPCs. HASCs-derived exosomal miR-155-5p inhibited pyroptosis of NPCs and promoted autophagy and ECM synthesis. After bioinformatics prediction and verification, it was found that miR-155-5p targeted TGFβR2. Moreover, miR-155-5p targeted TGFβR2 to promote autophagy and inhibit pyroptosis in NPCs. In vivo experiments revealed that hASCs-derived exosomal miR-155-5p alleviated IDD in rats. CONCLUSIONS HASCs-derived exosomal miR-155-5p alleviated IDD by targeting TGFβR2 to promote autophagy and reduce pyroptosis. Our study may provide a new therapeutic target for IDD. TRANSLATIONAL POTENTIAL OF THIS ARTICLE HASCs-derived exosomal miR-155-5p is expected to be a biomarker for clinical treatment of IDD. Our study may provide a new therapeutic target for IDD.
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EIF4A3-Induced Upregulation of hsa_circ_0040039 is a Biomarker and Aggravates IL-1β-Stimulated Intervertebral Disc Degeneration. Appl Biochem Biotechnol 2023:10.1007/s12010-023-04334-y. [PMID: 36689155 DOI: 10.1007/s12010-023-04334-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2023] [Indexed: 01/24/2023]
Abstract
Intervertebral disc degeneration (IDD) is characterised by nucleus pulposus (NP) loss and extracellular matrix (ECM) degeneration. Circular RNAs (circRNAs) have been reported to be dysregulated during IDD progression. Recently, reports showed that hsa_circ_0040039 was increased in degenerated lumbar disc samples. The aim of this study was to explore the specific role and underlying mechanisms of hsa_circ_0040039 in IDD. The expression of hsa_circ_0040039 was investigated in NP tissues of IDD patients. IL-1β was used to treat NP cells to construct an IDD in vitro model. Overexpression and loss-of-function assays and bioinformatic analysis were performed to evaluate the role and potential mechanism of hsa_circ_0040039 during IDD progression. Hsa_circ_0040039 expression was increased about 2 folds in NP tissues compared with normal tissues and IL-1β-stimulated NP cells also presented hsa_circ_0040039 upregulation, and its overexpression promoted cell proliferation and ECM degeneration. The depletion of hsa_circ_0040039 had the opposite effects. Based on bioinformatics prediction, Luciferase assay, PCR and Western blot, our study verified that hsa_circ_0040039 directly bond to miR-146b-3p, then mediated its targeted MMP2 and PCNA. Moreover, the overexpression of miR-146b-3p and the silence of MMP2 or PCNA, partially abolished the effect of hsa_circ_0040039 on IL-1β-stimulated NPs. Hsa_circ_0040039 may participate in IDD development by mediating the repair and regeneration of NPs through upregulation MMP2 and PCNA mediated by miR-146b-3p.
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Abstract
Bone is a connective tissue that has important functions in the human body. Cells and the extracellular matrix (ECM) are key components of bone and are closely related to bone-related diseases. However, the outcomes of conventional treatments for bone-related diseases are not promising, and hence it is necessary to elucidate the exact regulatory mechanisms of bone-related diseases and identify novel biomarkers for diagnosis and therapy. Circular RNAs (circRNAs) are single-stranded RNAs that form closed circular structures without a 5' cap or 3' tail and polycyclic adenylate tails. Due to their high stability, circRNAs have the potential to be typical biomarkers. Accumulating evidence suggests that circRNAs are involved in bone-related diseases, including osteoarthritis, osteoporosis, osteosarcoma, multiple myeloma, intervertebral disc degeneration, and rheumatoid arthritis. Herein, we summarize the recent research progress on the characteristics and functions of circRNAs, and highlight the regulatory mechanism of circRNAs in bone-related diseases.
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Affiliation(s)
- Linghui HU
- School of Exercise and Health, Shanghai University of Sport, Shanghai200438, China
| | - Wei WU
- School of Exercise and Health, Shanghai University of Sport, Shanghai200438, China
| | - Jun ZOU
- School of Exercise and Health, Shanghai University of Sport, Shanghai200438, China,Jun ZOU,
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Guo C, Chen Y, Wang Y, Hao Y. Regulatory roles of noncoding RNAs in intervertebral disc degeneration as potential therapeutic targets (Review). Exp Ther Med 2022; 25:44. [PMID: 36569433 PMCID: PMC9764052 DOI: 10.3892/etm.2022.11743] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 11/16/2022] [Indexed: 12/04/2022] Open
Abstract
Intervertebral disc degeneration (IDD) is the leading cause of lower back pain, which is one of the primary factors that lead to disability and pose a serious economic burden. The key pathological processes involved are extracellular matrix degradation, autophagy, apoptosis, and inflammation of nucleus pulposus cells. Non-coding RNAs (ncRNAs), including microRNAs, long ncRNAs and circular RNAs, are key regulators of the aforementioned processes. ncRNAs are differentially expressed in tissues of the intervertebral disc between healthy individuals and patients and participate in the pathological progression of IDD via a complex pattern of gene regulation. However, the regulatory mechanisms of ncRNAs in IDD remain unclear. The present review summarizes the latest insights into the regulatory role of ncRNAs in IDD and sheds light on potentially novel therapeutic strategies for IDD that may be implemented in the future.
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Affiliation(s)
- Cunliang Guo
- Department of Orthopedics, First School of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China
| | - Yungang Chen
- Department of Orthopedics, First School of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China
| | - Yuhe Wang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, P.R. China
| | - Yanke Hao
- Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China,Correspondence to: Dr Yanke Hao, Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, 16369 Jingshi Road, Lixia, Jinan, Shandong 250014, P.R. China
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Wang Z, Chen L, Li Q, Zhang H, Shan Y, Qi L, Wang H, Chen Y. Association between single-nucleotide polymorphism rs145497186 related to NDUFV2 and lumbar disc degeneration: a pilot case–control study. J Orthop Surg Res 2022; 17:473. [PMID: 36309697 PMCID: PMC9618206 DOI: 10.1186/s13018-022-03368-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 10/23/2022] [Indexed: 11/10/2022] Open
Abstract
Objective The association between the single-nucleotide polymorphisms (SNPs) rs28742109, rs12955018, rs987850, rs8093805, rs12965084 and rs145497186 related to gene named NADH dehydrogenase [ubiquinone] flavoprotein 2 (NDUFV2) and lumbar disc degeneration (LDD) was preliminary investigated in a small sample size.
Methods A total of 46 patients with LDD and 45 controls were recruited at Qilu Hospital of Shandong University, and each participant provided 5 mL peripheral venous blood. NA was extracted from the blood of each participant for further genotyping. The frequency of different genotypes in the case group and control group was determined, and analysis of the risk of LDD associated with different SNP genotypes was performed. The visual analogue scale (VAS) scores of the patients’ degree of chronic low back pain were calculated, and the relationship between VAS scores and SNPs was analysed.
Results After excluding the influence of sex, age, height, and weight on LDD, a significant association between SNP rs145497186 related to NDUFV2 and LDD persisted (P = 0.006). Simultaneously, rs145497186 was found to be associated with chronic low back pain in LDD populations.
Conclusion NDUFV2 rs145497186 SNP could be associated with susceptibility to LDD and the degree of chronic low back pain. Supplementary Information The online version contains supplementary material available at 10.1186/s13018-022-03368-y.
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Liu M, Zhang L, Zang W, Zhang K, Li H, Gao Y. Pharmacological Effects of Resveratrol in Intervertebral Disc Degeneration: A Literature Review. Orthop Surg 2022; 14:3141-3149. [PMID: 36303427 PMCID: PMC9732612 DOI: 10.1111/os.13560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/26/2022] [Accepted: 09/15/2022] [Indexed: 12/14/2022] Open
Abstract
Intervertebral disc degeneration (IDD) is a high incidence disease of musculoskeletal system that often leads to stenosis, instability, pain and even deformity of the spinal segments. IDD is an important cause of discogenic lower back pain and often leads to large economic burden to families and society. Currently, the treatment of IDD is aimed at alleviating symptoms rather than blocking or reversing pathological progression of the damaged intervertebral disc. Resveratrol (RSV) is a polyphenol phytoalexin first extracted from the Veratrum grandiflflorum O. Loes and can be found in various plants and red wine. Owing to the in-depth study of pharmacological mechanisms, the therapeutic potential of RSV in various diseases such as osteoarthritis, neurodegenerative diseases, cardiovascular diseases and diabetes have attracted the attention of many researchers. RSV has anti-apoptotic, anti-senescent, anti-inflammatory, anti-oxidative, and anabolic activities, which can prevent further degeneration of intervertebral disc cells and enhance their regeneration. With high safety and various biological functions, RSV might be a promising candidate for the treatment of IDD. This review summarizes the biological functions of RSV in the treatment of IDD and to facilitate further research.
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Affiliation(s)
- Ming‐yang Liu
- Present address:
Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, Department of Surgery of Spine and Spinal Cord, Henan Provincial People's HospitalPeople's Hospital of Zhengzhou University, People's Hospital of Henan UniversityZhengzhouChina
| | - Liang Zhang
- Present address:
Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, Department of Surgery of Spine and Spinal Cord, Henan Provincial People's HospitalPeople's Hospital of Zhengzhou University, People's Hospital of Henan UniversityZhengzhouChina
| | - Wei‐dong Zang
- Department of Human Anatomy, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Kai‐guang Zhang
- Present address:
Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, Department of Surgery of Spine and Spinal Cord, Henan Provincial People's HospitalPeople's Hospital of Zhengzhou University, People's Hospital of Henan UniversityZhengzhouChina
| | - Hai‐jun Li
- Department of Immunity, Institute of Translational MedicineThe First Hospital of Jilin UniversityJilinChina
| | - Yan‐zheng Gao
- Present address:
Henan Province Intelligent Orthopedic Technology Innovation and Transformation International Joint Laboratory, Henan Key Laboratory for Intelligent Precision Orthopedics, Department of Surgery of Spine and Spinal Cord, Henan Provincial People's HospitalPeople's Hospital of Zhengzhou University, People's Hospital of Henan UniversityZhengzhouChina
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Mitophagy—A New Target of Bone Disease. Biomolecules 2022; 12:biom12101420. [PMID: 36291629 PMCID: PMC9599755 DOI: 10.3390/biom12101420] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/20/2022] [Accepted: 09/28/2022] [Indexed: 01/17/2023] Open
Abstract
Bone diseases are usually caused by abnormal metabolism and death of cells in bones, including osteoblasts, osteoclasts, osteocytes, chondrocytes, and bone marrow mesenchymal stem cells. Mitochondrial dysfunction, as an important cause of abnormal cell metabolism, is widely involved in the occurrence and progression of multiple bone diseases, including osteoarthritis, intervertebral disc degeneration, osteoporosis, and osteosarcoma. As selective mitochondrial autophagy for damaged or dysfunctional mitochondria, mitophagy is closely related to mitochondrial quality control and homeostasis. Accumulating evidence suggests that mitophagy plays an important regulatory role in bone disease, indicating that regulating the level of mitophagy may be a new strategy for bone-related diseases. Therefore, by reviewing the relevant literature in recent years, this paper reviews the potential mechanism of mitophagy in bone-related diseases, including osteoarthritis, intervertebral disc degeneration, osteoporosis, and osteosarcoma, to provide a theoretical basis for the related research of mitophagy in bone diseases.
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Hu Z, Wang Y, Gao X, Zhang Y, Liu C, Zhai Y, Chang X, Li H, Li Y, Lou J, Li C. Optineurin-mediated mitophagy as a potential therapeutic target for intervertebral disc degeneration. Front Pharmacol 2022; 13:893307. [PMID: 36105191 PMCID: PMC9465714 DOI: 10.3389/fphar.2022.893307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/01/2022] [Indexed: 12/05/2022] Open
Abstract
Low back pain is thought to be mainly caused by intervertebral disc degeneration (IVDD), and there is a lack of effective treatments. Cellular senescence and matrix degradation are important factors that cause disc degeneration. Mitochondrial dysfunction induced by oxidative stress is an important mechanism of cellular senescence and matrix degradation in the nucleus pulposus (NP), and mitophagy can effectively remove damaged mitochondria, restore mitochondrial homeostasis, and mitigate the damage caused by oxidative stress. Optineurin (OPTN) is a selective mitophagy receptor, and its role in intervertebral disc degeneration remains unclear. Here, we aimed to explore the effect of OPTN on H2O2-induced nucleus pulposus cell (NPCs) senescence and matrix degradation in a rat model of disc degeneration. Western blot analysis showed that OPTN expression was reduced in degenerative human and rat nucleus pulposus tissues and increased in H2O2-induced senescent NPCs. OPTN overexpression significantly inhibited H2O2-induced senescence and increased matrix-associated protein expression in NPCs, but OPTN knockdown showed the opposite effect. As previous reports have suggested that mitophagy significantly reduces mitochondrial damage and reactive oxygen species (ROS) caused by oxidative stress, and we used the mitophagy agonist CCCP, the mitophagy inhibitor cyclosporin A (CsA), and the mitochondrial ROS (mtROS) scavenger mitoTEMPO and confirmed that OPTN attenuated NPCs senescence and matrix degeneration caused by oxidative stress by promoting mitophagy to scavenge damaged mitochondria and excess reactive oxygen species, thereby slowing the progression of IVDD. In conclusion, our research suggests that OPTN is involved in IVDD and exerts beneficial effects against IVDD.
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Affiliation(s)
- Zhilei Hu
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Yu Wang
- Department of Ophthalmology, Southwest Hospital, Army Military Medical University, Chongqing, China
| | - Xiaoxin Gao
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Yuyao Zhang
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Chenhao Liu
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Yu Zhai
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Xian Chang
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Haiyin Li
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Yueyang Li
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Jinhui Lou
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
| | - Changqing Li
- Department of Orthopedics, Xinqiao Hospital, Army Military Medical University, Chongqing, China
- *Correspondence: Changqing Li,
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36
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Bahar ME, Hwang JS, Ahmed M, Lai TH, Pham TM, Elashkar O, Akter KM, Kim DH, Yang J, Kim DR. Targeting Autophagy for Developing New Therapeutic Strategy in Intervertebral Disc Degeneration. Antioxidants (Basel) 2022; 11:antiox11081571. [PMID: 36009290 PMCID: PMC9405341 DOI: 10.3390/antiox11081571] [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: 07/18/2022] [Revised: 08/11/2022] [Accepted: 08/11/2022] [Indexed: 12/25/2022] Open
Abstract
Intervertebral disc degeneration (IVDD) is a prevalent cause of low back pain. IVDD is characterized by abnormal expression of extracellular matrix components such as collagen and aggrecan. In addition, it results in dysfunctional growth, senescence, and death of intervertebral cells. The biological pathways involved in the development and progression of IVDD are not fully understood. Therefore, a better understanding of the molecular mechanisms underlying IVDD could aid in the development of strategies for prevention and treatment. Autophagy is a cellular process that removes damaged proteins and dysfunctional organelles, and its dysfunction is linked to a variety of diseases, including IVDD and osteoarthritis. In this review, we describe recent research findings on the role of autophagy in IVDD pathogenesis and highlight autophagy-targeting molecules which can be exploited to treat IVDD. Many studies exhibit that autophagy protects against and postpones disc degeneration. Further research is needed to determine whether autophagy is required for cell integrity in intervertebral discs and to establish autophagy as a viable therapeutic target for IVDD.
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Affiliation(s)
- Md Entaz Bahar
- Department of Biochemistry and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju 52727, GyeongNam, Korea
| | - Jin Seok Hwang
- Department of Biochemistry and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju 52727, GyeongNam, Korea
| | - Mahmoud Ahmed
- Department of Biochemistry and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju 52727, GyeongNam, Korea
| | - Trang Huyen Lai
- Department of Biochemistry and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju 52727, GyeongNam, Korea
| | - Trang Minh Pham
- Department of Biochemistry and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju 52727, GyeongNam, Korea
| | - Omar Elashkar
- Department of Biochemistry and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju 52727, GyeongNam, Korea
| | - Kazi-Marjahan Akter
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, GyeongNam, Korea
| | - Dong-Hee Kim
- Department of Orthopaedic Surgery, Institute of Health Sciences, Gyeongsang National University Hospital and Gyeongsang National University College of Medicine, Jinju 52727, GyeongNam, Korea
| | - Jinsung Yang
- Department of Biochemistry and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju 52727, GyeongNam, Korea
| | - Deok Ryong Kim
- Department of Biochemistry and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju 52727, GyeongNam, Korea
- Correspondence: ; Tel.: +82-55-772-8054
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Kuai J, Zhang N. Upregulation of SIRT1 by Evodiamine activates PI3K/AKT pathway and blocks intervertebral disc degeneration. Mol Med Rep 2022; 26:265. [PMID: 35762319 PMCID: PMC9260874 DOI: 10.3892/mmr.2022.12781] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/17/2022] [Indexed: 12/02/2022] Open
Abstract
Intervertebral disc degeneration (IDD) is a major cause of a number of spinal diseases, resulting in serious public health problems. Evodiamine (Evo) is an indole quinazoline alkaloid extracted from Evodia rutaecarpa, which has antioxidant, anti-apoptosis and anti-inflammatory effects. The purpose of the present study was to investigate lipopolysaccharide (LPS)-induced IDD progression in human nucleus pulposus cells (NPCs) and its potential mechanism. The viability and apoptosis of NPCs were detected by Cell Counting Kit-8 (CCK-8) and TUNEL staining, respectively. Western blotting was used to detect the expression levels of proteins, cell transfection was performed to knockdown Sirtuin 1 (SIRT1) and the expression of tumor necrosis factor-alpha (TNF-α) and interleukin 6 (IL-6) was detected by enzyme-linked immunosorbent assay kits. The results showed that Evo effectively alleviated LPS-induced NPCs apoptosis and caspase-3 activation and Evo treatment reversed the upregulation of matrix metalloproteinase-13, as well as the downregulation of collagen type II (collagen II), Sry-type high-mobility-group box 9 and aggrecan and reduced the production of pro-inflammatory factors TNF-α and IL-6 in LPS-stimulated NPCs. In addition, treatment with Evo upregulated SIRT1 and activated the PI3K/Akt pathway, knockdown of SIRT1 inhibited the phosphorylation of Akt and PI3K in LPS-stimulated NPCs. In general, Evo upregulated SIRT1 and inhibited LPS-induced NPCs apoptosis, extracellular matrix degradation and inflammation by activating the PI3K/Akt pathway.
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Affiliation(s)
- Jianbo Kuai
- Department of Orthopedics, Jianhu County People's Hospital, Yancheng, Jiangsu 224700, P.R. China
| | - Na Zhang
- Department of Orthopedics, Fengfeng General Hospital, North China Medical Health Group, Handan, Hebei 056200, P.R. China
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Wan W, Hua F, Fang P, Li C, Deng F, Chen S, Ying J, Wang X. Regulation of Mitophagy by Sirtuin Family Proteins: A Vital Role in Aging and Age-Related Diseases. Front Aging Neurosci 2022; 14:845330. [PMID: 35615591 PMCID: PMC9124796 DOI: 10.3389/fnagi.2022.845330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 04/19/2022] [Indexed: 12/18/2022] Open
Abstract
Sirtuins are protein factors that can delay aging and alleviate age-related diseases through multiple molecular pathways, mainly by promoting DNA damage repair, delaying telomere shortening, and mediating the longevity effect of caloric restriction. In the last decade, sirtuins have also been suggested to exert mitochondrial quality control by mediating mitophagy, which targets damaged mitochondria and delivers them to lysosomes for degradation. This is especially significant for age-related diseases because dysfunctional mitochondria accumulate in aging organisms. Accordingly, it has been suggested that sirtuins and mitophagy have many common and interactive aspects in the aging process. This article reviews the mechanisms and pathways of sirtuin family-mediated mitophagy and further discusses its role in aging and age-related diseases.
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Affiliation(s)
- Wei Wan
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Fuzhou Hua
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Pu Fang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chang Li
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Fumou Deng
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Shoulin Chen
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Jun Ying
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
- Jun Ying
| | - Xifeng Wang
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- *Correspondence: Xifeng Wang
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Xin J, Wang Y, Zheng Z, Wang S, Na S, Zhang S. Treatment of Intervertebral Disc Degeneration. Orthop Surg 2022; 14:1271-1280. [PMID: 35486489 PMCID: PMC9251272 DOI: 10.1111/os.13254] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 02/09/2022] [Accepted: 02/18/2022] [Indexed: 12/25/2022] Open
Abstract
Intervertebral disc degeneration (IDD) causes a variety of signs and symptoms, such as low back pain (LBP), intervertebral disc herniation, and spinal stenosis, which contribute to high social and economic costs. IDD results from many factors, including genetic factors, aging, mechanical injury, malnutrition, and so on. The pathological changes of IDD are mainly composed of the senescence and apoptosis of nucleus pulposus cells (NPCs), the progressive degeneration of extracellular matrix (ECM), the fibrosis of annulus fibrosus (AF), and the inflammatory response. At present, IDD can be treated by conservative treatment and surgical treatment based on patients' symptoms. However, all of these can only release the pain but cannot reverse IDD and reconstruct the mechanical function of the spine. The latest research is moving towards the field of biotherapy. Mesenchymal stem cells (MSCs) are regard as the potential therapy of IDD because of their ability to self-renew and differentiate into a variety of tissues. Moreover, the non-coding RNAs (ncRNAs) are found to regulate many vital processes in IDD. There have been many successes in the in vitro and animal studies of using biotherapy to treat IDD, but how to transform the experimental data to real therapy which can apply to humans is still a challenge. This article mainly reviews the treatment strategies and research progress of IDD and indicates that there are many problems that need to be solved if the new biotherapy is to be applied to clinical treatment of IDD. This will provide reference and guidance for clinical treatment and research direction of IDD.
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Affiliation(s)
- Jingguo Xin
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, China.,Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Yongjie Wang
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, China.,Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Zhi Zheng
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, China.,Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Shuo Wang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China
| | - Shibo Na
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, China.,Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
| | - Shaokun Zhang
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, China.,Jilin Engineering Research Center for Spine and Spinal Cord Injury, Changchun, China
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Wu T, Jia X, Zhu Z, Guo K, Wang Q, Gao Z, Li X, Huang Y, Wu D. Inhibition of miR-130b-3p restores autophagy and attenuates intervertebral disc degeneration through mediating ATG14 and PRKAA1. Apoptosis 2022; 27:409-425. [PMID: 35435532 DOI: 10.1007/s10495-022-01725-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2022] [Indexed: 02/07/2023]
Abstract
Oxidative stress-induced autophagy dysfunction is involved in the pathogenesis of intervertebral disc degeneration (IVDD). MicroRNAs (miRNAs) not only have been regarded as important regulators of IVDD but also reported to be related to autophagy. This research was aimed to explore the role of miR-130b-3p in IVDD and its regulation on autophagy mechanism. The miR-130b-3p expression in the patient's degenerative nucleus pulposus (NP) samples and rat NP tissues was detected by qRT-PCR and FISH assay. The miR-130b-3p was knocked down or overexpressed in the human NP cells by lentivirus transfection. TBHP was used to induce oxidative stress in the human NP cells. Apoptosis, senescence, and autophagy were evaluated by flow cytometry, β-gal staining, immunofluorescence, electron microscopy, and Western blot in the miR-130b-3p knocked down human NP cells under TBHP treatment. The relationship between the miR-130b-3p and ATG14 or PRKAA1 was confirmed by luciferase assay. The siRNA transfection was used to knock down the ATG14 and PRKAA1 expression, and then the human NP cells functions were further determined. In the in vivo experiment, the IVDD rat model was constructed and an adeno-associated virus (AAV)-miR-130b-3p inhibitor was intradiscally injected. After that, MRI and histological staining were conducted to evaluate the role of miR-130b-3p inhibition in the IVDD rat model. We found that the miR-130b-3p was upregulated in the degenerative NP samples from humans and rats. Interestingly, the inhibition of miR-130b-3p rescued oxidative stress-induced dysfunction of the human NP cells, and miR-130b-3p inhibition upregulated autophagy. Mechanistically, we confirmed that the miR-130b-3p regulated the ATG14 and PRKAA1 directly and the knockdown of the ATG14 or PRKAA1 as well as the treatment of autophagy inhibitor blockaded the autophagic flux and reversed the protective effects of miR-130b-3p inhibition in the TBHP-induced human NP cells. Furthermore, the inhibition of the miR-130b-3p via AAV- miR-130b-3p injection ameliorated the IVDD in a rat model. These data demonstrated that the miR-130b-3p inhibition could upregulate the autophagic flux and alleviate the IVDD via targeting ATG14 and PRKAA1.The translational potential of this article: The suppression of miR-130b-3p may become an effective therapeutic strategy for IVDD.
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Affiliation(s)
- Tongde Wu
- Department of Spine Surgery, Shanghai East Hospital, Pudong District, Tongji University School of Medicine, 150 Jimo Rd, Shanghai, 200120, China
| | - Xuebing Jia
- Cancer Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Ziqi Zhu
- Department of Spine Surgery, Shanghai East Hospital, Pudong District, Tongji University School of Medicine, 150 Jimo Rd, Shanghai, 200120, China
| | - Kai Guo
- Department of Spine Surgery, Shanghai East Hospital, Pudong District, Tongji University School of Medicine, 150 Jimo Rd, Shanghai, 200120, China
| | - Qiang Wang
- Department of Spine Surgery, Shanghai East Hospital, Pudong District, Tongji University School of Medicine, 150 Jimo Rd, Shanghai, 200120, China
| | - Zhiqiang Gao
- Department of Spine Surgery, Shanghai East Hospital, Pudong District, Tongji University School of Medicine, 150 Jimo Rd, Shanghai, 200120, China
| | - Xinhua Li
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Yufeng Huang
- Department of Spine Surgery, Shanghai East Hospital, Pudong District, Tongji University School of Medicine, 150 Jimo Rd, Shanghai, 200120, China.
| | - Desheng Wu
- Department of Spine Surgery, Shanghai East Hospital, Pudong District, Tongji University School of Medicine, 150 Jimo Rd, Shanghai, 200120, China.
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Zhang M, Luo J, Chen X, Chen Y, Li P, Zhang G, Guan H, Lu P. Identification and Integrated Analysis of the miRNA-mRNA Regulatory Network in Lens from an H 2O 2-Induced Zebrafish Cataract Model. Curr Eye Res 2022; 47:854-865. [PMID: 35315700 DOI: 10.1080/02713683.2022.2050263] [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: 11/03/2022]
Abstract
PURPOSE This study aimed to explore the regulatory mechanisms of age-related cataract (ARC) formation. METHODS Cataracts in zebrafish were induced by injecting hydrogen peroxide into the fish anterior chamber. The mRNA and miRNA expression profiles of the lens from H2O2-injected and PBS-injected zebrafishes were detected by RNA sequencing. The LIMMA package was applied to identify differentially expressed genes (DEGs). Gene Ontology categories were enriched by the R "cluster Profiler" package and Kyoto Encyclopedia of Genes and Genomes pathway enrichment was performed based on hypergeometric distribution using the R "phyper" function. The protein-protein interaction network of DEGs was built via the STRING. Target genes of differentially expressed miRNAs (DEmiRs) were predicted by miRanda. Furthermore, DEGs were selected as DEmiR targets and a DEmiR-DEG regulatory network was constructed via Cytoscape. RESULTS In total, 3689 DEGs (such as opn1mw4, LOC103908930, si:dkeyp-1h4.8, crispld1b, cyp1a, and gdpd3a) including 2478 upregulated and 1211 downregulated genes were identified. 177 DEmiRs (such as dre-miR-96-3p, dre-miR-182-5p, dre-miR-9-7-3p, and dre-miR-124-4-5p) including 108 upregulated and 69 downregulated miRNAs were detected. The DEGs are involved in cell death, DNA repair, and cell development-related pathways. A protein-protein interaction network including 79 node genes was constructed to explore the interactions of DEGs. Furthermore, a DEmiR-DEG regulatory network focusing on the DNA repair process was constructed, including 21 hub DEGs and 15 hub DEmiRs. CONCLUSIONS We identified several DEGs and constructed a miRNA-mRNA regulatory network related to the DNA repair process in a zebrafish cataract model. These genes participate in the oxidative stress response of lens epithelium cells and finally contribute to the formation of zebrafish cataracts. The hub DEGs and hub DEmiRs could be potential therapeutic targets for ARC.
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Affiliation(s)
- Mu Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Jiawei Luo
- Eye Institute, The Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Xiaoqing Chen
- Department of Party Committee Personnel Work, The Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Yanhua Chen
- Center for Disease Prevention and Control of Nantong City, Nantong, Jiangsu, China
| | - Pengfei Li
- Eye Institute, The Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Guowei Zhang
- Eye Institute, The Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Huaijin Guan
- Eye Institute, The Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Peirong Lu
- Department of Ophthalmology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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Wu Y, Shen S, Shi Y, Tian N, Zhou Y, Zhang X. Senolytics: Eliminating Senescent Cells and Alleviating Intervertebral Disc Degeneration. Front Bioeng Biotechnol 2022; 10:823945. [PMID: 35309994 PMCID: PMC8924288 DOI: 10.3389/fbioe.2022.823945] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 01/21/2022] [Indexed: 12/25/2022] Open
Abstract
Intervertebral disc degeneration (IVDD) is the main cause of cervical and lumbar spondylosis. Over the past few years, the relevance between cellular senescence and IVDD has been widely studied, and the senescence-associated secretory phenotype (SASP) produced by senescent cells is found to remodel extracellular matrix (ECM) metabolism and destruct homeostasis. Elimination of senescent cells by senolytics and suppression of SASP production by senomorphics/senostatics are effective strategies to alleviate degenerative diseases including IVDD. Here, we review the involvement of senescence in the process of IVDD; we also discuss the potential of senolytics on eliminating senescent disc cells and alleviating IVDD; finally, we provide a table listing senolytic drugs and small molecules, aiming to propose potential drugs for IVDD therapy in the future.
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Affiliation(s)
- Yuhao Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Shiwei Shen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Yifeng Shi
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, China
| | - Naifeng Tian
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, China
- *Correspondence: Naifeng Tian, ; Yifei Zhou, ; Xiaolei Zhang,
| | - Yifei Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, China
- *Correspondence: Naifeng Tian, ; Yifei Zhou, ; Xiaolei Zhang,
| | - Xiaolei Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, China
- Chinese Orthopaedic Regenerative Medicine Society, Hangzhou, China
- *Correspondence: Naifeng Tian, ; Yifei Zhou, ; Xiaolei Zhang,
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Wang J, Xia D, Lin Y, Xu W, Wu Y, Chen J, Chu J, Shen P, Weng S, Wang X, Shen L, Fan S, Shen S. Oxidative stress-induced circKIF18A downregulation impairs MCM7-mediated anti-senescence in intervertebral disc degeneration. Exp Mol Med 2022; 54:285-297. [PMID: 35332256 PMCID: PMC8979962 DOI: 10.1038/s12276-022-00732-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/10/2021] [Accepted: 09/29/2021] [Indexed: 11/30/2022] Open
Abstract
Low back pain, triggered by intervertebral disc degeneration (IVDD), is one of the most common causes of disability and financial expenditure worldwide. However, except for surgical interventions, effective medical treatment to prevent the progression of IVDD is lacking. This study aimed to investigate the effects of circKIF18A, a novel circRNA, on IVDD progression and to explore its underlying mechanism in IVDD. In this study, we found that oxidative stress was positively correlated with nucleus pulposus cell (NPC) senescence in IVDD and that circKIF18A was downregulated in IVDD and attenuated senescent phenotypes such as cell cycle arrest and extracellular matrix degradation in NPCs. Mechanistically, circKIF18A competitively suppressed ubiquitin-mediated proteasomal degradation of MCM7, and the protective effects of circKIF18A on NPCs were partially mediated by MCM7 under oxidative stress. Intradiscal injection of adenoviral circKIF18A ameliorated IVDD in a rat model. This study revealed that circKIF18A regulates NPC degeneration by stabilizing MCM7 and identified a novel signaling pathway, the circKIF18A-MCM7 axis, for anti-senescence molecular therapy in IVDD. A non-coding circular RNA molecule that prevents spinal cells from undergoing premature ageing offers a new therapeutic target for treating intervertebral disc degeneration (IVDD), a major cause of lower back pain. Shuying Shen of Zhejiang University School of Medicine, China, and colleagues took samples from the soft, gelatinous central portion of the intervertebral disk, the so-called nucleus pulposus, and looked for circular RNAs with high expression levels in healthy individuals and low levels in people with IVDD. They identified a specific RNA in this way, and showed how this regulatory molecule promotes the activity of a protein involved in enhancing the proliferative capacity of nucleus pulposus tissues. In rats, injections of a gene therapy vector encoding this RNA helped ameliorate signs of IVDD, highlighting the potential for similar therapeutic strategies in people with IVDD.
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Affiliation(s)
- Jianle Wang
- Department of Orthopedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310020, Hangzhou, Zhejiang, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 310020, Hangzhou, Zhejiang, China
| | - Dongdong Xia
- Department of Orthopedics, Ningbo First Hospital, 315010, Ningbo, Zhejiang, China
| | - Yan Lin
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325088, Wenzhou, Zhejiang Province, China.,Key Laboratory of Orthopaedics of Zhejiang Province, 325088, Wenzhou, Zhejiang Province, China
| | - Wenbin Xu
- Department of Orthopedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310020, Hangzhou, Zhejiang, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 310020, Hangzhou, Zhejiang, China
| | - Yaosen Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325088, Wenzhou, Zhejiang Province, China.,Key Laboratory of Orthopaedics of Zhejiang Province, 325088, Wenzhou, Zhejiang Province, China
| | - Jiaoxiang Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325088, Wenzhou, Zhejiang Province, China.,Key Laboratory of Orthopaedics of Zhejiang Province, 325088, Wenzhou, Zhejiang Province, China
| | - Junjie Chu
- Department of Head and Neck Surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310020, Hangzhou, Zhejiang, China
| | - Panyang Shen
- Department of Orthopedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310020, Hangzhou, Zhejiang, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 310020, Hangzhou, Zhejiang, China
| | - Sheji Weng
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325088, Wenzhou, Zhejiang Province, China.,Key Laboratory of Orthopaedics of Zhejiang Province, 325088, Wenzhou, Zhejiang Province, China
| | - Xiangyang Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325088, Wenzhou, Zhejiang Province, China. .,Key Laboratory of Orthopaedics of Zhejiang Province, 325088, Wenzhou, Zhejiang Province, China.
| | - Lifeng Shen
- Department of Orthopedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310020, Hangzhou, Zhejiang, China. .,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 310020, Hangzhou, Zhejiang, China.
| | - Shunwu Fan
- Department of Orthopedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310020, Hangzhou, Zhejiang, China. .,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 310020, Hangzhou, Zhejiang, China.
| | - Shuying Shen
- Department of Orthopedics, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310020, Hangzhou, Zhejiang, China. .,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 310020, Hangzhou, Zhejiang, China.
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MicroRNAs, Long Non-Coding RNAs, and Circular RNAs in the Redox Control of Cell Senescence. Antioxidants (Basel) 2022; 11:antiox11030480. [PMID: 35326131 PMCID: PMC8944605 DOI: 10.3390/antiox11030480] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/21/2022] [Accepted: 02/24/2022] [Indexed: 12/18/2022] Open
Abstract
Cell senescence is critical in diverse aspects of organism life. It is involved in tissue development and homeostasis, as well as in tumor suppression. Consequently, it is tightly integrated with basic physiological processes during life. On the other hand, senescence is gradually being considered as a major contributor of organismal aging and age-related diseases. Increased oxidative stress is one of the main risk factors for cellular damages, and thus a driver of senescence. In fact, there is an intimate link between cell senescence and response to different types of cellular stress. Oxidative stress occurs when the production of reactive oxygen species/reactive nitrogen species (ROS/RNS) is not adequately detoxified by the antioxidant defense systems. Non-coding RNAs are endogenous transcripts that govern gene regulatory networks, thus impacting both physiological and pathological events. Among these molecules, microRNAs, long non-coding RNAs, and more recently circular RNAs are considered crucial mediators of almost all cellular processes, including those implicated in oxidative stress responses. Here, we will describe recent data on the link between ROS/RNS-induced senescence and the current knowledge on the role of non-coding RNAs in the senescence program.
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Du X, Chen S, Cui H, Huang Y, Wang J, Liu H, Li Z, Liang C, Zheng Z, Wang H. Circular RNA hsa_circ_0083756 promotes intervertebral disc degeneration by sponging miR-558 and regulating TREM1 expression. Cell Prolif 2022; 55:e13205. [PMID: 35187741 PMCID: PMC9055908 DOI: 10.1111/cpr.13205] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/09/2022] [Accepted: 02/02/2022] [Indexed: 12/13/2022] Open
Abstract
Objectives Intervertebral disc degeneration (IVDD) is a leading cause of low back pain. Circular RNAs (circRNAs) have been demonstrated to exert vital functions in IVDD. However, the role and mechanism of hsa_circ_0083756 in the development of IVDD remain unclear. Materials and methods RT‐qPCR was performed to detect expressions of hsa_circ_0083756, miR‐558 and TREM1 in nucleus pulposus (NP) tissues and cells. CCK8 assay, flow cytometry, TUNEL assay, RT‐qPCR and WB were used to clarify the roles of hsa_circ_0083756 in NP cells proliferation and extracellular matrix (ECM) formation. Bioinformatics analyses, dual‐luciferase reporter gene experiment, RNA immunoprecipitation (RIP) assay and FISH assay were performed to predict and verify the targeting relationship between hsa_circ_0083756 and miR‐558, as well as that between miR‐558 and TREM1. Ultimately, the effect of hsa_circ_0083756 on IVDD was tested through anterior disc‐puncture IVDD animal model in rats. Results hsa_circ_0083756 was upregulated in degenerative NP tissues and cells. In vitro loss‐of‐function and gain‐of‐function studies suggested that hsa_circ_0083756 knockdown promoted, whereas hsa_circ_0083756 overexpression inhibited NP cells proliferation and ECM formation. Mechanistically, hsa_circ_0083756 acted as a sponge of miR‐558 and subsequently promoted the expression of TREM1. Furthermore, in vivo study indicated that silencing of hsa_circ_0083756 could alleviate IVDD in rats. Conclusions hsa_circ_0083756 promoted IVDD via targeting the miR‐558/TREM1 axis, and hsa_circ_0083756 may serve as a potential therapeutic target for the treatment of IVDD.
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Affiliation(s)
- Xianfa Du
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Department of Orthopedics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shunlun Chen
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Haitao Cui
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yuming Huang
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jianru Wang
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hui Liu
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zemin Li
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chunxiang Liang
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhaomin Zheng
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Pain Research Center, Sun Yat-sen University, Guangzhou, China
| | - Hua Wang
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Chen S, Shi G, Zeng J, Li PH, Peng Y, Ding Z, Cao HQ, Zheng R, Wang W. MiR-1260b protects against LPS-induced degenerative changes in nucleus pulposus cells through targeting TCF7L2. Hum Cell 2022; 35:779-791. [PMID: 35165858 DOI: 10.1007/s13577-021-00655-4] [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: 05/09/2021] [Accepted: 11/26/2021] [Indexed: 11/04/2022]
Abstract
Nucleus pulposus (NP) cells play a critical role in maintaining intervertebral disc integrity through producing the components of extracellular matrix (ECM). NP cell dysfunction, including senescence and hyper-apoptosis, has been regarded as critical events during intervertebral disc degeneration development. In the present study, we found that Transcription Factor 7-Like 2 (TCF7L2) was overexpressed within degenerative intervertebral disc tissue samples, and TCF7L2 silencing improved lipopolysaccharide (LPS)-induced repression on NP cell proliferation, ECM synthesis, and LPS-induced NP cell senescence. miR-1260b directly targeted TCF7L2 and inhibited TCF7L2 expression. miR-1260b overexpression improved LPS-induced degenerative changes in NP cells; more importantly, TCF7L2 overexpression significantly reversed the effects of miR-1260b overexpression on LPS-stimulated degenerative changes within NP cells. For the first time, we demonstrated the function of the miR-1260b/TCF7L2 axis on the phenotypic maintenance of chondrocyte-like NP cells and ECM synthesis by NP cells under LPS stimulation.
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Affiliation(s)
- Shijie Chen
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China.,Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Guixia Shi
- Department of Internal Medicine, Changsha Health Vocational Collage, Changsha, 410100, Hunan, China
| | - Jin Zeng
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Ping Huang Li
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Yi Peng
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Zhiyu Ding
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Hong Qing Cao
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China
| | - Ruping Zheng
- School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - Weiguo Wang
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, Changsha, 410013, Hunan, China.
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47
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The Roles of circRNAs in Intervertebral Disc Degeneration: Inflammation, Extracellular Matrix Metabolism, and Apoptosis. Anal Cell Pathol (Amst) 2022; 2022:9550499. [PMID: 35186669 PMCID: PMC8856834 DOI: 10.1155/2022/9550499] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/19/2022] [Indexed: 12/15/2022] Open
Abstract
Low back pain (LBP) is seriously harmful to human health and produces heavy economic burden. And most scholars hold that intervertebral disc degeneration (IDD) is the primary cause of LBP. With the study of IDD, aberrant expression of gene has become an important pathogenic factor of IDD. Circular RNAs (circRNAs), as a kind of noncoding RNA (ncRNA), participate in the regulation of genetic transcription and translation and further affect the expression of inflammatory cytokine, metabolism of extracellular matrix (ECM), the proliferation and apoptosis of cells, etc. Therefore, maybe it will become a new therapeutic target for IDD. At present, our understanding of the mechanism of circRNAs in IDD is limited. The purpose of this review is to summarize the mechanism and related signaling pathways of circRNAs in IDD reported in the past. Particularly, the roles of circRNAs in inflammation, ECM metabolism, and apoptosis are emphasized.
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Yan P, Sun C, Luan L, Han J, Qu Y, Zhou C, Xu D. Hsa_circ_0134111 promotes intervertebral disc degeneration via sponging miR-578. Cell Death Dis 2022; 8:55. [PMID: 35136049 PMCID: PMC8827076 DOI: 10.1038/s41420-022-00856-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/06/2022] [Accepted: 01/27/2022] [Indexed: 11/09/2022]
Abstract
Intervertebral disc degeneration (IDD) is a chronic degenerative and age-dependent process characterized by aberrant apoptosis, proliferation, synthesis, and catabolism of the extracellular matrix of the nucleus pulposus (NP) cells. Recently, studies showed that circular RNAs play important roles in the development of many diseases. However, the role of circRNAs in IDD development remains unknown. We showed that circ_0134111 level was overexpressed in IDD tissue samples as compar-ed to control tissues. The upregulation of circ_0134111 was more drastic in the moderate and severe IDD cases than in those with mild IDD. In addition, we showed that interleukin-1β and tumor necrosis factor-α exposure significantly enhanced circ_0134111 expression in NP cells. Furthermore, ectopic expression of circ_0134111 induced proliferation, pro-inflammatory cytokine secretion, and ECM degradation in the NP cells. We also showed that circ_0134111 directly interacted with microRNA (miR)-578 in NP cells where elevated expression of circ_0134111 enhanced the ADAMTS-5 and MMP-9 expression. Moreover, miR-578 expression was significantly decreased in IDD patients and the miR-578 expression was negatively correlated with circ_0134111 expression in the IDD samples. Interleukin-1β and tumor necrosis factor-α exposure significantly decreased miR-578 levels in NP cells, in which ectopic miR-578 expression inhibited cell growth, pro-inflammatory cytokine expression, and ECM degradation. Finally, we showed that circ_0134111 overexpression induced the IDD-related phenotypic changes through inhibiting miR-578. These data suggested that circ_0134111 could promote the progression of IDD through enhancing aberrant NP cell growth, inflammation, and ECM degradation partly via regulating miR-578.
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Affiliation(s)
- Peng Yan
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, 266000, Qingdao, Shandong, China
| | - Chong Sun
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, 266000, Qingdao, Shandong, China
| | - Liangrui Luan
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, 266000, Qingdao, Shandong, China
| | - Jialuo Han
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, 266000, Qingdao, Shandong, China
| | - Yang Qu
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, 266000, Qingdao, Shandong, China
| | - Chuanli Zhou
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, 266000, Qingdao, Shandong, China
| | - Derong Xu
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, 266000, Qingdao, Shandong, China.
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Xu Y, Tian Y, Li F, Wang Y, Yang J, Gong H, Wan X, Ouyang M. Circular RNA HECTD1 Mitigates Ulcerative Colitis by Promoting Enterocyte Autophagy Via miR-182-5p/HuR Axis. Inflamm Bowel Dis 2022; 28:273-288. [PMID: 34427642 DOI: 10.1093/ibd/izab188] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Ulcerative colitis (UC) is a chronic colitis with unknown etiology. Circular RNA (circRNA) has shown regulatory effect in many diseases, but the role of circRNA in UC is barely known. This study uncovers the function and regulatory mechanism of circRNA HECTD1 (circHECTD1) in UC. METHODS Colonic mucosal tissues of 60 patients with active UC and 30 healthy controls were collected for H&E staining. Lipopolysaccharide (LPS) and dextran sulfate sodium (DSS) were used to induce inflammation and UC in Caco-2 cells and C57BL/6 mice where modification of circHECTD1, miR-182-5p and/or human antigen R (HuR) took place. The Caco-2 cells and the colon tissues of DSS-treated mice were collected for analysis of the expression levels of inflammatory cytokines, NLRP3 inflammasome, and autophagy-related proteins. The interactions among circHECTD1, miR-182-5p, and HuR were verified. RESULTS The colonic mucosal tissues of UC patients showed impaired autophagy and decreased expressions of circHECTD1 and HuR. Overexpression of circHECTD1 or HuR or inhibition of miR-182-5p suppressed inflammation and promoted autophagy of LPS-induced Caco-2 cells. The expression of HuR was promoted by circHECTD1 via miR-182-5p in Caco-2 cells. Overexpression of circHECTD1 reduced colonic injuries and inflammation by promoting autophagy in DSS-treated mice. CONCLUSION Overexpression of circHECTD1 alleviates UC by promoting HuR-dependent autophagy via miR-182-5p. This study highlights the therapeutic potential of circHECTD1 for UC and adds to the knowledge of circRNA in the pathogenesis of UC.
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Affiliation(s)
- Yan Xu
- Department of Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Yuxi Tian
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Fujun Li
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Ying Wang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Junwen Yang
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Hui Gong
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Xiaoping Wan
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Miao Ouyang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
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50
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Shi Z, He J, He J, Xu Y. High hydrostatic pressure (30 atm) enhances the apoptosis and inhibits the proteoglycan synthesis and extracellular matrix level of human nucleus pulposus cells via promoting the Wnt/β-catenin pathway. Bioengineered 2022; 13:3070-3081. [PMID: 35100096 PMCID: PMC8974124 DOI: 10.1080/21655979.2022.2025518] [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] [Indexed: 12/18/2022] Open
Abstract
Hydrostatic pressure is known to regulate bovine nucleus pulposus cell metabolism, but its mechanism in human nucleus pulposus cells (HNPCs) remains obscure, which attracts our attention and becomes the focus in this study. Specifically, HNPCs were treated with SKL2001 (an agonist in the Wnt/β-catenin pathway) or XAV-939 (an inhibitor of the Wnt/β-catenin pathway), and pressurized under the hydrostatic pressure of 1, 3 and 30 atm. The viability, apoptosis and proteoglycan synthesis of treated HNPC were assessed by CCK-8, flow cytometry and radioisotope incorporation assays. The levels of extracellular matrix, Collagen-II, matrix metalloproteinase 3 (MMP3), Wnt-3a and β-catenin were measured by toluidine blue staining, immunocytochemistry and Western blot. Appropriate hydrostatic stimulation (3 atm) enhanced the viability and proteoglycan synthesis yet inhibited the apoptosis of HNPCs, which also up-regulated extracellular matrix and Collagen-II levels, and down-regulated MMP3, Wnt-3a and β-catenin levels in treated HNPCs. Furthermore, high hydrostatic pressure (30 atm) inhibited the viability and proteoglycan synthesis, and promoted the morphological change and apoptosis of HNPCs, which also down-regulated extracellular matrix and Collagen-II levels and up-regulated MMP3, Wnt-3a and β-catenin levels. Besides, SKL2001 reversed the effects of hydrostatic pressure (3 atm) on inhibiting Wnt-3a, β-catenin, and MMP3 levels and promoting Collagen-II level in HNPC; whereas, XAV-939 reversed the effects of high hydrostatic pressure (30 atm) on promoting MMP3, Wnt-3a, and β-catenin levels and inhibiting Collagen-II level and proteoglycan synthesis of HNPCs. Collectively, high hydrostatic pressure promoted the apoptosis and inhibited the viability of HNPCs via activating the Wnt/β-catenin pathway.
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Affiliation(s)
- Zongting Shi
- Department of Spine, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, China
| | - Jun He
- Department of Orthopedics, Zhejiang Hospital, Hangzhou City, Zhejiang Province, China
| | - Jian He
- Department of Orthopedics, Zhejiang Hospital, Hangzhou City, Zhejiang Province, China
| | - Yuan Xu
- Department of Orthopedics, Zhejiang Hospital, Hangzhou City, Zhejiang Province, China
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