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Meng Q, Liu K, Liu Z, Liu J, Tian Z, Qin S, Wei J, Cheng L. Digoxin protects against intervertebral disc degeneration via TNF/NF-κB and LRP4 signaling. Front Immunol 2023; 14:1251517. [PMID: 37790932 PMCID: PMC10544936 DOI: 10.3389/fimmu.2023.1251517] [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: 07/01/2023] [Accepted: 08/28/2023] [Indexed: 10/05/2023] Open
Abstract
Background Intervertebral disc degeneration (IVDD) is a leading cause of low back pain (LBP). The pathological process of IVDD is associated with inflammatory reactions and extracellular matrix (ECM) disorders. Digoxin is widely used for treating heart failure, and it has been reported to have anti-inflammatory effects. Objective This study is to investigate the role of digoxin in the pathogenesis of intervertebral disc degeneration as well as the involved molecular mechanism, particularly the potential target protein. Methods We exploited a rat needle model to investigate digoxin's role in intervertebral disc degeneration in vivo. Safranin O staining was used to measure cartilaginous tissue in the intervertebral disc. The morphological changes of intervertebral discs in animal models were determined by Hematoxylin-Eosin (H&E) staining and the pathological score. Primary nucleus pulposus cells (NP cells) from intervertebral discs of patients and murine were used in the present study. Western-Blotting assay, Real-time PCR assay, immunofluorescence staining, and immunochemistry were used to detect the role of digoxin in anti-TNF-α-induced inflammatory effects in vitro. Transfection of siRNA was used to regulate low-density lipoprotein receptor-related protein 4 (LRP4) expression in NP cells to investigate the potential protein target of digoxin. Results Digoxin protected against intervertebral disc degeneration in rat needle models. Digoxin was found to exert its disc-protective effects through at least three different pathways by a) suppressing TNF-α-induced inflammation, b) attenuating ECM destruction, c) significantly promoting ECM anabolism. Additionally, LRP4 was found to be the downstream molecule of digoxin in NP cells for anti-inflammation and regulation of ECM metabolism. The knockdown of LRP4 downregulated the protective effect of digoxin in NP cells. Conclusion These findings suggest that digoxin may be a potential therapeutic agent for intervertebral disc degeneration through anti-catabolism and pro-anabolism. Digoxin might also work as an alternative for other inflammation-related diseases.
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Affiliation(s)
- Qunbo Meng
- Department of Orthopaedic Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Qilu Hospital of Shandong University, Shandong University, Jinan, Shandong, China
| | - Kaiwen Liu
- Department of Orthopaedic Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Qilu Hospital of Shandong University, Shandong University, Jinan, Shandong, China
| | - Zhenchuan Liu
- Department of Orthopaedic Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Qilu Hospital of Shandong University, Shandong University, Jinan, Shandong, China
| | - Jinbo Liu
- Department of Orthopaedic Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Qilu Hospital of Shandong University, Shandong University, Jinan, Shandong, China
| | - Ziyu Tian
- Qilu Hospital of Shandong University, Shandong University, Jinan, Shandong, China
- Department of Radiology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Shanshan Qin
- Department of Radiology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Jianlu Wei
- Department of Orthopaedic Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Qilu Hospital of Shandong University Spine and Spinal Cord Disease Research Center-International Chinese Musculoskeletal Research Society (ICMRS) Collaborating Center for Orthopaedic Translational Research, Shandong University, Jinan, Shandong, China
| | - Lei Cheng
- Department of Orthopaedic Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Qilu Hospital of Shandong University Spine and Spinal Cord Disease Research Center-International Chinese Musculoskeletal Research Society (ICMRS) Collaborating Center for Orthopaedic Translational Research, Shandong University, Jinan, Shandong, China
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Du X, Liang K, Ding S, Shi H. Signaling Mechanisms of Stem Cell Therapy for Intervertebral Disc Degeneration. Biomedicines 2023; 11:2467. [PMID: 37760908 PMCID: PMC10525468 DOI: 10.3390/biomedicines11092467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/27/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
Low back pain is the leading cause of disability worldwide. Intervertebral disc degeneration (IDD) is the primary clinical risk factor for low back pain and the pathological cause of disc herniation, spinal stenosis, and spinal deformity. A possible approach to improve the clinical practice of IDD-related diseases is to incorporate biomarkers in diagnosis, therapeutic intervention, and prognosis prediction. IDD pathology is still unclear. Regarding molecular mechanisms, cellular signaling pathways constitute a complex network of signaling pathways that coordinate cell survival, proliferation, differentiation, and metabolism. Recently, stem cells have shown great potential in clinical applications for IDD. In this review, the roles of multiple signaling pathways and related stem cell treatment in IDD are summarized and described. This review seeks to investigate the mechanisms and potential therapeutic effects of stem cells in IDD and identify new therapeutic treatments for IDD-related disorders.
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Affiliation(s)
| | | | | | - Haifei Shi
- Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (X.D.); (K.L.); (S.D.)
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Zhang GZ, Li L, Luo ZB, Zhang CY, Wang YG, Kang XW. Identification and experimental validation of key extracellular proteins as potential targets in intervertebral disc degeneration. Bone Joint Res 2023; 12:522-535. [PMID: 37661086 PMCID: PMC10475329 DOI: 10.1302/2046-3758.129.bjr-2022-0369.r2] [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] [Indexed: 09/05/2023] Open
Abstract
Aims This study aimed, through bioinformatics analysis and in vitro experiment validation, to identify the key extracellular proteins of intervertebral disc degeneration (IDD). Methods The gene expression profile of GSE23130 was downloaded from the Gene Expression Omnibus (GEO) database. Extracellular protein-differentially expressed genes (EP-DEGs) were screened by protein annotation databases, and we used Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) to analyze the functions and pathways of EP-DEGs. STRING and Cytoscape were used to construct protein-protein interaction (PPI) networks and identify hub EP-DEGs. NetworkAnalyst was used to analyze transcription factors (TFs) and microRNAs (miRNAs) that regulate hub EP-DEGs. A search of the Drug Signatures Database (DSigDB) for hub EP-DEGs revealed multiple drug molecules and drug-target interactions. Results A total of 56 EP-DEGs were identified in the differential expression analysis. EP-DEGs were enriched in the extracellular structure organization, ageing, collagen-activated signalling pathway, PI3K-Akt signalling pathway, and AGE-RAGE signalling pathway. PPI network analysis showed that the top ten hub EP-DEGs are closely related to IDD. Correlation analysis also demonstrated a significant correlation between the ten hub EP-DEGs (p<0.05), which were selected to construct TF-gene interaction and TF-miRNA coregulatory networks. In addition, ten candidate drugs were screened for the treatment of IDD. Conclusion The findings clarify the roles of extracellular proteins in IDD and highlight their potential as promising novel therapeutic targets.
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Affiliation(s)
- Guang-Zhi Zhang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
| | - Lei Li
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
| | - Zhang-Bin Luo
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
| | - Cang-Yu Zhang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
| | - Yong-Gang Wang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
| | - Xue-Wen Kang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou, China
- The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, China
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Li H, Pan H, Xiao C, Li H, Long L, Wang X, Luo S, Lyu K, Chen Y, Jiang L, Lu J, Shen H, Li S. IL-1β-mediated inflammatory responses in intervertebral disc degeneration: Mechanisms, signaling pathways, and therapeutic potential. Heliyon 2023; 9:e19951. [PMID: 37809657 PMCID: PMC10559578 DOI: 10.1016/j.heliyon.2023.e19951] [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: 02/17/2023] [Revised: 08/22/2023] [Accepted: 09/06/2023] [Indexed: 10/10/2023] Open
Abstract
Intervertebral disc degeneration (IDD) has been widely recognized as the primary cause of low back pain and is one of the major chronic diseases imposing a severe socioeconomic burden worldwide. IDD is a degenerative process characterized by inflammatory responses, and its underlying pathological mechanisms remain complex. Genetic, developmental, biochemical, and biomechanical factors contribute to the development of IDD. There is a pressing need for an effective non-surgical treatment, mainly due to the lack of comprehensive understanding of the specific mechanisms involved and the effective therapeutic targets for IDD. Recently, interleukin (IL)-1β has been recognized as an essential inflammatory factor and a key mediator of the inflammatory process in IDD. Current studies have found that IL-1β is mainly involved in IDD by affecting the metabolism of the extracellular matrix and regulating cell death (RCD), such as apoptosis, pyroptosis, and ferroptosis (a new form of RCD). Although analysis of clinical samples from different laboratories confirmed how IL-1β is induced in IDD, its specific signal transduction pathway, and the inflammatory role mediated in IDD remains unclear. This review describes the molecules and mechanisms involved in IL-1β-mediated inflammatory responses, and their roles in resolving the inflammatory process in IDD. Understanding the signaling pathways involved in IL-1β may lead to a new class of targets that promote remission for IDD patients. This review aims to provide a framework for the treatment of IDD by analyzing the signaling mechanism and function related to IL-1β, especially in terms of inflammation, matrix metabolism, and cell death regulation.
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Affiliation(s)
- Hongtao Li
- Department of Spinal Surgery, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Sichuan, China
| | - Hongyu Pan
- Department of Spinal Surgery, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Sichuan, China
| | - Changming Xiao
- Department of Spinal Surgery, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Sichuan, China
| | - Hanyue Li
- School of Physical Education, Southwest Medical University, Luzhou, China
| | - Longhai Long
- Department of Spinal Surgery, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Sichuan, China
| | - Xiaoqiang Wang
- Department of Spinal Surgery, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Sichuan, China
| | - Shengyu Luo
- School of Physical Education, Southwest Medical University, Luzhou, China
| | - Kexin Lyu
- School of Physical Education, Southwest Medical University, Luzhou, China
| | - Yixuan Chen
- School of Physical Education, Southwest Medical University, Luzhou, China
| | - Li Jiang
- School of Physical Education, Southwest Medical University, Luzhou, China
| | - Jingwei Lu
- School of Physical Education, Southwest Medical University, Luzhou, China
| | - Huarui Shen
- Department of Spinal Surgery, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Sichuan, China
| | - Sen Li
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, China
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Ao X, Li Y, Jiang T, Li C, Lian Z, Wang L, Zhang Z, Huang M. Angiopoietin-2 Promotes Mechanical Stress-induced Extracellular Matrix Degradation in Annulus Fibrosus Via the HIF-1α/NF-κB Signaling Pathway. Orthop Surg 2023; 15:2410-2422. [PMID: 37475697 PMCID: PMC10475680 DOI: 10.1111/os.13797] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 07/22/2023] Open
Abstract
OBJECTIVE Mechanical stress is an important risk factor for intervertebral disc degeneration (IVDD). Angiopoietin-2 (ANG-2) is regulated by mechanical stress and is widely involved in the regulation of extracellular matrix metabolism. In addition, the signaling cascade between HIF-1α and NF-κB is critical in matrix degradation. This study aims to investigate the role and molecular mechanism of ANG-2 in regulating the degeneration of annulus fibrosus (AF) through the HIF-1α/NF-κB signaling pathway. METHODS The bipedal standing mice IVDD model was constructed, and histological experiments were used to evaluate the degree of IVDD and the expression of ANG-2 in the AF. Mouse primary AF cells were extracted in vitro and subjected to mechanical stretching experiments. Western blot assay was used to detect the effect of mechanical stress on ANG-2, and the role of the ANG-2-mediated HIF-1α/NF-κB pathway in matrix degradation. In addition, the effect of inhibiting ANG-2 expression by siRNA or monoclonal antibody on delaying IVDD was investigated at in vitro and in vivo levels. One-way ANOVA with the least significant difference method was used for pairwise comparison of the groups with homogeneous variance, and Dunnett's method was used to compare the groups with heterogeneous variance. RESULTS In IVDD, the expressions of catabolic biomarkers (mmp-13, ADAMTS-4) and ANG-2 were significantly increased in AF. In addition, p65 expression was increased while HIF-1α expression was significantly decreased. The results of western blot assay showed mechanical stress significantly up-regulated the expression of ANG-2 in AF cells, and promoted matrix degradation by regulating the activity of HIF-1α/NF-κB pathway. Exogenous addition of Bay117082 and CoCl2 inhibited matrix degradation caused by mechanical stress. Moreover, injection of neutralizing antibody or treatment with siRNA to inhibit the expression of ANG-2 improved the matrix metabolism of AF and inhibited IVDD progression by regulating the HIF-1α/NF-κB signaling pathway. CONCLUSION In IVDD, mechanical stress could regulate the HIF-1α/NF-κB signaling pathway and matrix degradation by mediating ANG-2 expression in AF degeneration.
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Affiliation(s)
- Xiang Ao
- Division of Spine Surgery, Department of OrthopaedicsNanfang Hospital of Southern Medical UniversityGuangzhouGuangdongChina
| | - Yuan Li
- Department of Spine Surgery, Center for Orthopedic SurgeryThe Third Affiliated Hospital of Southern Medical UniversityGuangzhouGuangdongChina
- Academy of Orthopaedics·Guangdong ProvinceGuangzhouGuangdongChina
| | - Tao Jiang
- Division of Spine Surgery, Department of OrthopaedicsNanfang Hospital of Southern Medical UniversityGuangzhouGuangdongChina
| | - Chenglong Li
- Division of Spine Surgery, Department of OrthopaedicsNanfang Hospital of Southern Medical UniversityGuangzhouGuangdongChina
| | - Zhengnan Lian
- Department of Spine Surgery, Center for Orthopedic SurgeryThe Third Affiliated Hospital of Southern Medical UniversityGuangzhouGuangdongChina
- Academy of Orthopaedics·Guangdong ProvinceGuangzhouGuangdongChina
| | - Liang Wang
- Department of Spine Surgery, Center for Orthopedic SurgeryThe Third Affiliated Hospital of Southern Medical UniversityGuangzhouGuangdongChina
- Academy of Orthopaedics·Guangdong ProvinceGuangzhouGuangdongChina
| | - Zhongmin Zhang
- Division of Spine Surgery, Department of OrthopaedicsNanfang Hospital of Southern Medical UniversityGuangzhouGuangdongChina
| | - Minjun Huang
- Department of Spine Surgery, Center for Orthopedic SurgeryThe Third Affiliated Hospital of Southern Medical UniversityGuangzhouGuangdongChina
- Academy of Orthopaedics·Guangdong ProvinceGuangzhouGuangdongChina
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Zeng Q, Sun Q, Xu H, Chen J, Ling H, Ge Q, Zou K, Wang X, Jin H, Li J, Jin M. Amygdalin Delays Cartilage Endplate Degeneration and Improves Intervertebral Disc Degeneration by Inhibiting NF-κB Signaling Pathway and Inflammatory Response. J Inflamm Res 2023; 16:3455-3468. [PMID: 37600226 PMCID: PMC10438437 DOI: 10.2147/jir.s415527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 08/02/2023] [Indexed: 08/22/2023] Open
Abstract
Background Intervertebral disc degeneration (IDD) is a major cause of lower back pain (LBP), in which inflammatory is frequently involved. Amygdalin (AMD) is a naturally occurring compound that exerts anti-fibrotic, anti-inflammatory, analgesic, and immunomodulatory effects in various diseases. The purpose of this study was to investigate the therapeutic effects and molecular mechanisms of AMD on Lumbar spine instability (LSI)-induced IDD in mice. Methods In this study, we first explored the effects of AMD in vivo, and then further explored the mechanism of its effects both in vivo and in vitro. Ten-week-old male C57BL/6J mice were administrated with AMD. At 10 weeks after LSI, spinal were collected for tissue analyses, including histology, micro-CT, and immunohistochemistry for Col2, Mmp-13, TNF-α, and p-P65. Additionally, we also evaluated the mRNA and protein expression level of p-P65 and p-IKBα after being treated with AMD in vitro. Results Histological staining, micro-CT and immunohistochemical analysis showed that AMD treatment significantly inhibited the expression of TNF-α and Mmp-13, increased the expression of Col2 as well as attenuated the calcification of cartilage endplates, eventually to delayed the progression of IDD. Meanwhile, in vivo and in vitro fluorescence imaging revealed that AMD markedly inhibited the AMD significantly inhibited the LSI-induced increase in TNF-α expression and P65and IKBα phosphorylation. Discussion Our findings suggest that AMD partly inhibits the activation of NF-κB signaling pathway to reduce the release of inflammatory mediators and delay the degeneration of cartilage endplate in IDD model mice. Therefore, AMD may be a potential candidate for the treatment of IDD.
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Affiliation(s)
- Qinghe Zeng
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang Provincial Hospital of Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Qi Sun
- Department of Orthopaedic Surgery, Fuyang Orthopaedics and Traumatology Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, People’s Republic of China
| | - Huihui Xu
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang Provincial Hospital of Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Jiali Chen
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang Provincial Hospital of Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Houfu Ling
- Department of Orthopaedics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Qinwen Ge
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang Provincial Hospital of Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Kaiao Zou
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang Provincial Hospital of Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Xu Wang
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang Provincial Hospital of Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Hongting Jin
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang Provincial Hospital of Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Ju Li
- Department of Orthopaedics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Minwei Jin
- Department of Orthopaedics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
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Gudkov SV, Gao M, Simakin AV, Baryshev AS, Pobedonostsev RV, Baimler IV, Rebezov MB, Sarimov RM, Astashev ME, Dikovskaya AO, Molkova EA, Kozlov VA, Bunkin NF, Sevostyanov MA, Kolmakov AG, Kaplan MA, Sharapov MG, Ivanov VE, Bruskov VI, Kalinichenko VP, Aiyyzhy KO, Voronov VV, Pimpha N, Li R, Shafeev GA. Laser Ablation-Generated Crystalline Selenium Nanoparticles Prevent Damage of DNA and Proteins Induced by Reactive Oxygen Species and Protect Mice against Injuries Caused by Radiation-Induced Oxidative Stress. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5164. [PMID: 37512437 PMCID: PMC10386620 DOI: 10.3390/ma16145164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/25/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023]
Abstract
With the help of laser ablation, a technology for obtaining nanosized crystalline selenium particles (SeNPs) has been created. The SeNPs do not exhibit significant toxic properties, in contrast to molecular selenium compounds. The administration of SeNPs can significantly increase the viabilities of SH-SY5Y and PCMF cells after radiation exposure. The introduction of such nanoparticles into the animal body protects proteins and DNA from radiation-induced damage. The number of chromosomal breaks and oxidized proteins decreases in irradiated mice treated with SeNPs. Using hematological tests, it was found that a decrease in radiation-induced leukopenia and thrombocytopenia is observed when selenium nanoparticles are injected into mice before exposure to ionizing radiation. The administration of SeNPs to animals 5 h before radiation exposure in sublethal and lethal doses significantly increases their survival rate. The modification dose factor for animal survival was 1.2. It has been shown that the introduction of selenium nanoparticles significantly normalizes gene expression in the cells of the red bone marrow of mice after exposure to ionizing radiation. Thus, it has been demonstrated that SeNPs are a new gene-protective and radioprotective agent that can significantly reduce the harmful effects of ionizing radiation.
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Affiliation(s)
- Sergey V Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Russian Scientific-Research Institute of Phytopathology of Russian Academy of Sciences, 143050 Big Vyazemy, Russia
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 603022 Nizhny Novgorod, Russia
| | - Meng Gao
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou Medical College, Soochow University, Suzhou 215123, China
| | - Alexander V Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Alexey S Baryshev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Roman V Pobedonostsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Ilya V Baimler
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Maksim B Rebezov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Ruslan M Sarimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Maxim E Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center "Push-chino Scientific Center for Biological Research of the Russian Academy of Sciences", Institutskaya St., 3, 142290 Pushchino, Russia
| | - Anastasia O Dikovskaya
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Elena A Molkova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Valery A Kozlov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
| | - Nikolay F Bunkin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
| | - Mikhail A Sevostyanov
- Russian Scientific-Research Institute of Phytopathology of Russian Academy of Sciences, 143050 Big Vyazemy, Russia
- A. A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Alexey G Kolmakov
- A. A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Mikhail A Kaplan
- A. A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Mars G Sharapov
- Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center "Push-chino Scientific Center for Biological Research of the Russian Academy of Sciences", Institutskaya St., 3, 142290 Pushchino, Russia
| | - Vladimir E Ivanov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Institutskaya St. 3, 142290 Pushchino, Russia
| | - Vadim I Bruskov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Institutskaya St. 3, 142290 Pushchino, Russia
| | - Valery P Kalinichenko
- Russian Scientific-Research Institute of Phytopathology of Russian Academy of Sciences, 143050 Big Vyazemy, Russia
- Institute of Fertility of Soils of South Russia, 346493 Persianovka, Russia
| | - Kuder O Aiyyzhy
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Valery V Voronov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Nuttaporn Pimpha
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA) 111, Phahonyotin Rd, Klong Luang 12120, Thailand
| | - Ruibin Li
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou Medical College, Soochow University, Suzhou 215123, China
| | - Georgy A Shafeev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
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Duan J, Li Z, Liu E, Long H, Chen L, Yang S. BSHXF-medicated serum combined with ADSCs regulates the TGF-β1/Smad pathway to repair oxidatively damaged NPCs and its component analysis. JOURNAL OF ETHNOPHARMACOLOGY 2023:116692. [PMID: 37277086 DOI: 10.1016/j.jep.2023.116692] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/14/2023] [Accepted: 05/26/2023] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Lower back pain (LBP) is a common and frequent clinical condition, and intervertebral disc degeneration (IDD) is recognized as the leading cause of LBP, typically manifested by increased nucleus pulposus cell (NPC) senescence and death. In recent years, the treatment of IDD with stem cell injections has had great potential compared to surgical treatment. Combining the two may achieve better results, as BuShenHuoXueFang (BSHXF) is an herbal formula that improves the survival rate of transplanted stem cells and enhances their efficacy. AIM OF THE STUDY We aimed to qualitatively and quantitatively analyze BSHXF-medicated serum and investigate the molecular mechanism of BSHXF-mediated serum in promoting the differentiation of adipose mesenchymal stem cells (ADSCs) into NPCs and delaying the senescence of NPCs by regulating the TGF-β1/Smad pathway. MATERIALS AND METHODS In this study, an ultrahigh-performance liquid chromatography-quadrupole-time-of-flight mass spectrometer (UPLC-Q-TOF-MS) was used to establish a method for the analysis of rat serum samples to track the active components in vivo; the oxidative damage model of NPCs was induced by T-BHP, and a Transwell chamber was used to construct a coculture system of ADSCs and NPCs. Flow cytometry was used to determine the cell cycle; SA-β-Gal staining was used to assess cell senescence; ELISA was used to detect IL-1β, IL-6 inflammatory factors, CXCL-1, CXCL-3, CXCL-10 chemokines, and TGF-β1 in the supernatants of ADSCs and NPCs. WB was used to detect COL2A1, COL1A1, and Aggrecan in ADSCs to assess the manifestation of NP differentiation in ADSCs, and the WB method was used to detect COL2A1, COL1A1, Aggrecan, p16, p21, p53, and p-p53 protein expression in NPCs to reflect the cellular senescence status and to detect TGF-β1, Smad2, Smad3, p- Smad2, and p- Smad3 protein expression in NPCs to reflect the pathway condition. RESULTS We finally identified 70 blood components and their metabolites, including 38 prototypes, from the BSHXF-medicated serum. Compared with that in the nonmedicated serum group, the TGF-β1/Smad pathway was activated in the medicated serum group, ADSCs moved toward NPC characteristics, the number of NPCs in the S/G2M phase increased, the number of senescent NPCs decreased, IL-1β and IL-6 inflammatory factors in the Transwell decreased, CXCL-1, CXCL-3, and CXCL-10 chemokines decreased, and the expression of p16, p21, p53 and p-p53 proteins in NPCs was inhibited. CONCLUSION By regulating the TGF-β1/Smad pathway, BSHXF-medicated serum promoted ADSCs to NPCs, effectively alleviated the cycle blockage of NPCs after oxidative damage, encouraged the growth and proliferation of NPCs, delayed the aging of NPCs, improved the deteriorating microenvironment around NPCs, and repaired oxidatively damaged NPCs. The combination of BSHXF or its compounds with ADSCs has great potential for the treatment of IDD in the future.
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Affiliation(s)
- Jiahao Duan
- Hunan University of TCM, Changsha, Hunan, 410208, China; The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, 410007, China.
| | - Zhaoyong Li
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, 410007, China.
| | - Enxu Liu
- Hunan University of TCM, Changsha, Hunan, 410208, China; The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, 410007, China.
| | - Hongping Long
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, 410007, China.
| | - Long Chen
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, 410007, China.
| | - Shaofeng Yang
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, 410007, China.
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Liu H, Li Y, Li Z, Li J, Zhang Q, Cao S, Li H. A Study Based on Network Pharmacology Decoding the Multi-Target Mechanism of Duhuo Jisheng Decoction for the Treatment of Intervertebral Disc Degeneration. COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE 2023; 2023:7091407. [PMID: 37288170 PMCID: PMC10243954 DOI: 10.1155/2023/7091407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/21/2022] [Accepted: 03/18/2023] [Indexed: 06/09/2023]
Abstract
Intervertebral disc degeneration (IDD) poses a grim public health impact. Duhuo Jisheng Decoction (DJD), a traditional Chinese medicine formula, has recently received significant attention for its efficacy and safety in treating IDD. However, the pathological processes of IDD in which DJD interferes and molecular mechanism involved are poorly understood, which brings difficulties to the clinical practice of DJD for the treatment of IDD. This study systematically investigated the underlying mechanism of DJD treatment of IDD. Network pharmacology approaches were employed, integrating molecular docking and random walk with restart (RWR) algorithm, to identify key compounds and targets for DJD in the treatment of IDD. Bioinformatics approaches were used to further explore the biological insights in DJD treatment of IDD. The analysis identifies AKT1, PIK3R1, CHUK, ALB, TP53, MYC, NR3C1, IL1B, ERBB2, CAV1, CTNNB1, AR, IGF2, and ESR1 as key targets. Responses to mechanical stress, oxidative stress, cellular inflammatory responses, autophagy, and apoptosis are identified as the critical biological processes involved in DJD treatment of IDD. The regulation of DJD targets in extracellular matrix components, ion channel regulation, transcriptional regulation, synthesis and metabolic regulation of reactive oxygen products in the respiratory chain and mitochondria, fatty acid oxidation, the metabolism of Arachidonic acid, and regulation of Rho and Ras protein activation are found to be potential mechanisms in disc tissue response to mechanical stress and oxidative stress. MAPK, PI3K/AKT, and NF-κB signaling pathways are identified as vital signaling pathways for DJD to treat IDD. Quercetin and Kaempferol are assigned a central position in the treatment of IDD. This study contributes to a more comprehensive understanding of the mechanism of DJD in treating IDD. It provides a reference for applying natural products to delay the pathological process of IDD.
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Affiliation(s)
- Hao Liu
- Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yumin Li
- Department of Orthopedics, Civil Aviation General Hospital, No. 1, Gaojing Street, Chaoyang District, Beijing 100123, China
| | - Zhujun Li
- Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jie Li
- Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qiongchi Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shuai Cao
- Department of Orthopedics, Civil Aviation General Hospital, No. 1, Gaojing Street, Chaoyang District, Beijing 100123, China
| | - Haopeng Li
- Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Xu J, Shao T, Lou J, Zhang J, Xia C. Aging, cell senescence, the pathogenesis and targeted therapies of intervertebral disc degeneration. Front Pharmacol 2023; 14:1172920. [PMID: 37214476 PMCID: PMC10196014 DOI: 10.3389/fphar.2023.1172920] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/25/2023] [Indexed: 05/24/2023] Open
Abstract
Intervertebral disc degeneration (IVDD) refers to the aging and degenerative diseases of intervertebral disc components such as nucleus pulposus, annulus fibrosus, and cartilage endplate, and is the main cause of chronic low back pain. Over the past few years, many researchers around the world concerned that the degeneration of nucleus pulposus (NP) cells plays the main role in IVDD. The degeneration of NP cells is caused by a series of pathological processes, including oxidative stress, inflammatory response, apoptosis, abnormal proliferation, and autophagy. Interestingly, many studies have found a close relationship between the senescence of NP cells and the progression of NP degeneration. The classical aging pathways also have been confirmed to be involved in the pathological process of IVDD. Moreover, several anti-aging drugs have been used to treat IVDD by inhibiting NP cells senescence, such as proanthocyanidins, resveratrol and bone morphogenetic protein 2. Therefore, this article will systematically list and discuss aging, cell senescence, the pathogenesis and targeted therapies of IVDD, in order to provide new ideas for the treatment of IVDD in the future.
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Affiliation(s)
- Jiongnan Xu
- Center for Plastic and Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital Hangzhou Medical College, Hangzhou, China
- The Second School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ting Shao
- Center for Plastic and Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital Hangzhou Medical College, Hangzhou, China
| | - Jianfen Lou
- Center for Plastic and Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital Hangzhou Medical College, Hangzhou, China
| | - Jun Zhang
- Department of Orthopedics, Zhejiang Provincial People’s Hospital Bijie Hospital, Bijie, Guizhou, China
| | - Chen Xia
- Center for Plastic and Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital Hangzhou Medical College, Hangzhou, China
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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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Wang Y, Wu Y, Zhang B, Zheng C, Hu C, Guo C, Kong Q, Wang Y. Repair of degenerative nucleus pulposus by polyphenol nanosphere-encapsulated hydrogel gene delivery system. Biomaterials 2023; 298:122132. [PMID: 37156085 DOI: 10.1016/j.biomaterials.2023.122132] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 03/17/2023] [Accepted: 04/23/2023] [Indexed: 05/10/2023]
Abstract
Intervertebral disc degeneration (IDD) progresses due to local inflammatory response, gradually unbalanced anabolic/catabolic activity, and progressive functional impairment within the nucleus pulposus. Antagomir-21, a cholesterol-modified miRNA-21 inhibitor, has potential extracellular matrix (ECM) regenerative ability, but its application for IDD is limited by inadequate local delivery systems. An injectable hydrogel gene delivery system encapsulating a modified tannic acid nanoparticles (TA NPs) vector was engineered for on-demand and sustained delivery of antagomir-21 into the nucleus pulposus. After nucleus pulposus cell uptake, antagomir-21 was released from TA NPs and regulated the ECM metabolic balance by inhibiting the MAPK/ERK signaling pathway. TA NPs scavenged intracellular ROS and reduced inflammation by downregulating TNF-α expression. In vivo, synergistic anti-inflammatory effects and ECM regeneration effectively promoted therapeutic efficacy against IDD. This hydrogel gene delivery system represents a creative, promising strategy for IDD repair.
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Affiliation(s)
- Yu Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ye Wu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bo Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan, China
| | - Cheng Zheng
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan, China
| | - Cheng Hu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan, China
| | - Chuan Guo
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qingquan Kong
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan, China.
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Exosome-laden injectable self-healing hydrogel based on quaternized chitosan and oxidized starch attenuates disc degeneration by suppressing nucleus pulposus senescence. Int J Biol Macromol 2023; 232:123479. [PMID: 36731695 DOI: 10.1016/j.ijbiomac.2023.123479] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/16/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023]
Abstract
Disc degeneration is the common pathology underlying various degenerative spinal disorders and currently there is no effective cure. Here, we found nucleus pulposus (NP) cell senescence was closely associated with the severity of disc degeneration, and exosomes (Exos) derived from mesenchymal stem cells (MSCs) ameliorated NP cell senescence and promoted extracellular matrix (ECM) deposition. As chitosan-based hydrogels have been widely used as vehicles to deliver Exos due to their prominent antibacterial capacity, biocompatibility, and biodegradability, we developed an Exos-laden hydrogel based on quaternized chitosan (QCS) and oxidized starch (OST) to treat disc degeneration. The synthesized QCS-OST hydrogel is injectable, self-healing, biocompatible, and demonstrated desirable pore size, injectable properties, and sustainable release of Exos. In a rat model of disc degeneration, the QCS-OST/Exos hydrogel was able to rejuvenate NP cell senescence, promote ECM remodeling, and partially restore the structures of NP and annulus fibrosis. Our findings suggested that the novel QCS-OST/Exos hydrogel is an effective therapeutic strategy for treating disc degeneration via alleviating NP cell senescence.
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Tan Y, Wang X, Zhang Y, Dai Z, Li J, Dong C, Yao X, Lu C, Chen F. FOXO3-Activated circFGFBP1 Inhibits Extracellular Matrix Degradation and Nucleus Pulposus Cell Death via miR-9-5p/BMP2 Axis in Intervertebral Disc Degeneration In Vivo and In Vitro. Pharmaceuticals (Basel) 2023; 16:ph16030473. [PMID: 36986573 PMCID: PMC10057604 DOI: 10.3390/ph16030473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/10/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
(1) Background: intervertebral disc degeneration (IVDD) defined as the degenerative changes in intervertebral disc is characterized by extracellular matrix (ECM) degradation and death in nucleus pulposus (NP) cells. (2) Methods: The model of IVDD was established in male Sprague Dawley rats using a puncture of a 21-gauge needle at the endplates located in the L4/5 intervertebral disc. Primary NP cells were stimulated by 10 ng/mL IL-1β for 24 h to mimic IVDD impairment in vitro. (3) Results: circFGFBP1 was downregulated in the IVDD samples. circFGFBP1 upregulation inhibited apoptosis and extracellular matrix (ECM) degradation and promoted proliferation in IL-1β-stimulated NP cells. Additionally, circFGFBP1 upregulation mitigated the loss of NP tissue and the destruction of the intervertebral disc structure in vivo during IVDD. FOXO3 could bind to the circFGFBP1 promoter to enhance its expression. circFGFBP1 upregulated BMP2 expression in NP via sponging miR-9-5p. FOXO3 enhanced the protection of circFGFBP1 in IL-1β-stimulated NP cells, whereas a miR-9-5p increase partly reversed the protection. miR-9-5p downregulation contributed to the survival of IL-1β-stimulated NP cells, which was partially reversed by BMP2 silence. (4) Conclusions: FOXO3 could activate the transcription of circFGFBP1 via binding to its promoter, which resulted in the enhancement of BMP2 via sponging miR-9-5p and then inhibited apoptosis and ECM degradation in NP cells during IVDD.
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Affiliation(s)
- Yanlin Tan
- Department of Nuclear Medicine, The Second Xiangya Hospital of Central South University, Changsha 410011, China
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, No.139, Renmin Middle Road, Changsha 410011, China
| | - Xiaobin Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, No.139, Renmin Middle Road, Changsha 410011, China
| | - Yi Zhang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, No.139, Renmin Middle Road, Changsha 410011, China
| | - Zhehao Dai
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, No.139, Renmin Middle Road, Changsha 410011, China
| | - Jing Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, No.139, Renmin Middle Road, Changsha 410011, China
| | - Chuning Dong
- Department of Nuclear Medicine, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Xingwang Yao
- Department of Surgery Room, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Chang Lu
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, No.139, Renmin Middle Road, Changsha 410011, China
| | - Fei Chen
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, No.139, Renmin Middle Road, Changsha 410011, China
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Khalid S, Ekram S, Ramzan F, Salim A, Khan I. Co-regulation of Sox9 and TGFβ1 transcription factors in mesenchymal stem cells regenerated the intervertebral disc degeneration. Front Med (Lausanne) 2023; 10:1127303. [PMID: 37007782 PMCID: PMC10063891 DOI: 10.3389/fmed.2023.1127303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/20/2023] [Indexed: 03/19/2023] Open
Abstract
BackgroundIntervertebral disc (IVD) shows aging and degenerative changes earlier than any other body connective tissue. Its repair and regeneration provide a considerable challenge in regenerative medicine due to its high degree of infrastructure and mechanical complexity. Mesenchymal stem cells, due to their tissue resurfacing potential, represent many explanatory pathways to regenerate a tissue breakdown.MethodsThis study was undertaken to evaluate the co-regulation of Sox9 and TGFβ1 in differentiating human umbilical cord mesenchymal stem cells (hUC-MSC) into chondrocytes. The combinatorial impact of Sox9 and TGFβ1 on hUC-MSCs was examined in vitro by gene expression and immunocytochemical staining. In in vivo, an animal model of IVD degeneration was established under a fluoroscopic guided system through needle puncture of the caudal disc. Normal and transfected MSCs were transplanted. Oxidative stress, pain, and inflammatory markers were evaluated by qPCR. Disc height index (DHI), water content, and gag content were analyzed. Histological examinations were performed to evaluate the degree of regeneration.ResultshUC-MSC transfected with Sox9+TGFβ1 showed a noticeable morphological appearance of a chondrocyte, and highly expressed chondrogenic markers (aggrecan, Sox9, TGFβ1, TGFβ2, and type II collagens) after transfection. Histological observation demonstrated that cartilage regeneration, extracellular matrix synthesis, and collagen remodeling were significant upon staining with H&E, Alcian blue, and Masson's trichrome stain on day 14. Additionally, oxidative stress, pain, and inflammatory markers were positively downregulated in the animals transplanted with Sox9 and TGFβ1 transfected MSCs.ConclusionThese findings indicate that the combinatorial effect of Sox9 and TGFβ1 substantially accelerates the chondrogenesis in hUC-MSCs. Cartilage regeneration and matrix synthesis were significantly enhanced. Therefore, a synergistic effect of Sox9 and TGFβ1 could be an immense therapeutic combination in the tissue engineering of cartilaginous joint bio-prostheses and a novel candidate for cartilage stabilization.
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Yang X, Lu Y, Zhou H, Jiang HT, Chu L. Integrated proteome sequencing, bulk RNA sequencing and single-cell RNA sequencing to identify potential biomarkers in different grades of intervertebral disc degeneration. Front Cell Dev Biol 2023; 11:1136777. [PMID: 37009470 PMCID: PMC10061025 DOI: 10.3389/fcell.2023.1136777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/07/2023] [Indexed: 03/18/2023] Open
Abstract
Low back pain (LBP) is a prevalent health problem worldwide that affects over 80% of adults during their lifetime. Intervertebral disc degeneration (IDD) is a well-recognized leading cause of LBP. IDD is classified into five grades according to the Pfirrmann classification system. The purpose of this study was to identify potential biomarkers in different IDD grades through an integrated analysis of proteome sequencing (PRO-seq), bulk RNA sequencing (bRNA-seq) and single-cell RNA sequencing (scRNA-seq) data. Eight cases of grade I-IV IDD were obtained. Grades I and II were considered non-degenerative discs (relatively normal), whereas grades III and IV were considered degenerative discs. PRO-seq analysis was performed to identify differentially expressed proteins (DEPs) in various IDD grades. Variation analysis was performed on bRNA-seq data to differentiate expressed genes (DEGs) in normal and degenerated discs. In addition, scRNA-seq was performed to validate DEGs in degenerated and non-degenerated nucleus pulposus (NP). Machine learning (ML) algorithms were used to screen hub genes. The receiver operating characteristic (ROC) curve was used to validate the efficiency of the screened hub genes to predict IDD. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were performed to analyze function enrichment and signaling pathways. Protein-protein interaction (PPI) network was used to prioritize disease-related proteins. SERPINA1, ORM2, FGG and COL1A1 were identified through PRO-seq as the hub proteins involved in regulating IDD. ML algorithms selected ten hub genes, including IBSP, COL6A2, MMP2, SERPINA1, ACAN, FBLN7, LAMB2, TTLL7, COL9A3, and THBS4 in bRNA-seq. Since serine protease inhibitor clade A member 1 (SERPINA1) was the only common gene, its accuracy in degenerated and non-degenerated NP cells was validated using scRNA-seq. Then, the rat degeneration model of caudal vertebra was established. The expression of SERPINA1 and ORM2 was detected using immunohistochemical staining of human and rat intervertebral discs. The results showed that SERPINA1 was poorly expressed in the degenerative group. We further explored the potential function of SERPINA1 by Gene Set Enrichment Analysis (GSEA) and cell-cell communication. Therefore, SERPINA1 can be used as a biomarker to regulate or predict the progress of disc degeneration.
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Ma Z, Yu P, Li X, Dai F, Jiang H, Liu J. Anemonin reduces hydrogen peroxide-induced oxidative stress, inflammation and extracellular matrix degradation in nucleus pulposus cells by regulating NOX4/NF-κB signaling pathway. J Orthop Surg Res 2023; 18:189. [PMID: 36899420 PMCID: PMC10007850 DOI: 10.1186/s13018-023-03679-8] [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: 08/19/2022] [Accepted: 03/04/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND Excessive oxidative stress plays a critical role in the progression of various diseases, including intervertebral disk degeneration (IVDD). Recent studies have found that anemonin (ANE) possesses antioxidant and anti-inflammatory effects. However, the role of ANE in IVDD is still unclear. Therefore, this study investigated the effect and mechanism of ANE on H2O2 induced degeneration of nucleus pulposus cells (NPCs). METHODS NPCs were pretreated with ANE, and then treated with H2O2. NOX4 was upregulated by transfection of pcDNA-NOX4 into NPCs. Cytotoxicity was detected by MTT, oxidative stress-related indicators and inflammatory factors were measured by ELISA, mRNA expression was assessed by RT-PCR, and protein expression was tested by western blot. RESULTS ANE attenuated H2O2-induced inhibition of NPCs activity. H2O2 enhanced oxidative stress, namely, increased ROS and MDA levels and decreased SOD level. However, these were suppressed and pretreated by ANE. ANE treatment repressed the expression of inflammatory factors (IL-6, IL-1β and TNF-α) in H2O2-induced NPCs. ANE treatment also prevented the degradation of extracellular matrix induced by H2O2, showing the downregulation of MMP-3, 13 and ADAMTS-4, 5 and the upregulation of collagen II. NOX4 is a key factor regulating oxidative stress. Our study confirmed that ANE could restrain NOX4 and p-NF-κB. In addition, overexpression of NOX4 counteracted the antioxidant and anti-inflammatory activities of ANE in H2O2-induced NPCs, and the inhibition of the degradation of extracellular matrix induced by ANE was also reversed by overexpression of NOX4. CONCLUSION ANE repressed oxidative stress, inflammation and extracellular matrix degradation in H2O2-induced NPCs by inhibiting NOX4/NF-κB pathway. Our study indicated that ANE might be a candidate drug for the treatment of IVDD.
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Affiliation(s)
- Zhijia Ma
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, No. 889, Wuzhong West Road, Gusu District, Suzhou, 215009, Jiangsu, China
| | - Pengfei Yu
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, No. 889, Wuzhong West Road, Gusu District, Suzhou, 215009, Jiangsu, China
| | - Xiaochun Li
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, No. 889, Wuzhong West Road, Gusu District, Suzhou, 215009, Jiangsu, China
| | - Feng Dai
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, No. 889, Wuzhong West Road, Gusu District, Suzhou, 215009, Jiangsu, China
| | - Hong Jiang
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, No. 889, Wuzhong West Road, Gusu District, Suzhou, 215009, Jiangsu, China.
| | - Jintao Liu
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, No. 889, Wuzhong West Road, Gusu District, Suzhou, 215009, Jiangsu, China.
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Kang L, Zhang H, Jia C, Zhang R, Shen C. Epigenetic modifications of inflammation in intervertebral disc degeneration. Ageing Res Rev 2023; 87:101902. [PMID: 36871778 DOI: 10.1016/j.arr.2023.101902] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/17/2023] [Accepted: 03/02/2023] [Indexed: 03/07/2023]
Abstract
Intervertebral disc degeneration (IDD) is a common cause of joint-related chronic disability in elderly individuals worldwide. It seriously impacts the quality of life and inflicts a substantial social and economic burden. The pathological mechanisms underlying IDD have not been fully revealed, leading to less satisfactory clinical treatment outcomes. More studies are urgently needed to reveal its precise pathological mechanisms. Numerous studies have revealed that inflammation is closely related to various pathological processes of IDD, including the continuous loss of extracellular matrix, cell apoptosis, and senescence, indicating the important role of inflammation in the pathological mechanism of IDD. Epigenetic modifications affect the functions and characteristics of genes mainly through DNA methylation, histone modification, non-coding RNA regulation, and other mechanisms, thus having a major effect on the survival state of the body. Recently, the role of epigenetic modifications in inflammation during IDD has been attracting research interest. In this review, we summarize the roles of different types of epigenetic modifications in inflammation during IDD in recent years, to improve our understanding of the etiology of IDD and to transform basic research strategy into a clinically effective treatment for joint-related chronic disability in elderly individuals.
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Affiliation(s)
- Liang Kang
- Department of Orthopedics & Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Huaqing Zhang
- Department of Orthopedics & Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Chongyu Jia
- Department of Orthopedics & Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Renjie Zhang
- Department of Orthopedics & Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China.
| | - Cailiang Shen
- Department of Orthopedics & Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China.
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69
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Derivation and comprehensive analysis of ageing-related genes in intervertebral disc degeneration for prediction and immunology. Mech Ageing Dev 2023; 211:111794. [PMID: 36841375 DOI: 10.1016/j.mad.2023.111794] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/12/2022] [Accepted: 02/20/2023] [Indexed: 02/27/2023]
Abstract
Intervertebral disc degeneration (IDD) is triggered primarily by ageing, a process characterized by intrinsic, multifaceted and progressive characteristics. Regarding the crucial senescence genes and underlying regulatory mechanisms leading to the etiology of IDD, there is still some uncertainty. In this study, we used gene expression patterns from the GEO database to create a diagnostic model of IDD using differential ageing-related genes (DARG). We examine the relative dynamics of immune cells by single-sample gene set. On the basis of transcription factor (TF) miRNA and miRNA-mRNA pairs, the regulatory network for transcription and post-transcriptional processes was built. The active therapeutic components and Chinese herbal remedies of the main ageing genes were investigated using a network pharmacology approach. 20 DARGs were combined to create a diagnostic model, and both the training and validation sets had an area under the ROC curve of 1. We found alterations in many cell types in IDD tissue, but mainly in activated dendritic cells, type 17 T helper cells, and mast cells. We identified a regulatory axis for STAT1/miR-4306/PPARA based on the correlations between gene expression and targeting. Active substances (Naringenin and Quercetin) and herbs (Aurantii fructus and Eucommiae cortex) targeting PPARA for the treatment of IDD were discovered through network pharmacology. These results provide a theoretical framework for identifying and treating IDD. For the first time, we were able to diagnose IDD patients using 20 ageing-related indicators. At the same time, TF-miRNA-mRNA in conjunction with network pharmacology enabled the identification of prospective therapeutic targets and pharmacological processes.
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Deng Z, Zhang Y, Zhu Y, Zhu J, Li S, Huang Z, Qin T, Wu J, Zhang C, Chen W, Huang D, Ye W. BRD9 Inhibition Attenuates Matrix Degradation and Pyroptosis in Nucleus Pulposus by Modulating the NOX1/ROS/NF-κB axis. Inflammation 2023; 46:1002-1021. [PMID: 36801999 DOI: 10.1007/s10753-023-01786-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/17/2023] [Accepted: 01/27/2023] [Indexed: 02/23/2023]
Abstract
Intervertebral disc degeneration (IDD) is considered to be the leading cause of low back pain (LBP). The progression of IDD is closely related to the inflammatory microenvironment, which results in extracellular matrix degradation and cell death. One of the proteins, which have been shown to participate in the inflammatory response, is the bromodomain-containing protein 9 (BRD9). This study aimed to investigate the role and mechanism of BRD9 in regulating IDD. The tumor necrosis factor-α (TNF-α) was used to mimic the inflammatory microenvironment in vitro. Western blot, RT-PCR, immunohistochemistry, immunofluorescence, and flow cytometry were used to demonstrate the effect of BRD9 inhibition or knockdown on matrix metabolism and pyroptosis. We found that the expression of BRD9 was upregulated as IDD progressed. BRD9 inhibition or knockdown alleviated TNF-α-induced matrix degradation, reactive oxygen species (ROS) production, and pyroptosis in rat nucleus pulposus cells. Mechanistically, RNA-seq was used to investigate the mechanism of BRD9 in promoting IDD. Further investigation revealed that BRD9 regulated NOX1 expression. Inhibition of NOX1 could abrogate matrix degradation, ROS production, and pyroptosis caused by BRD9 overexpression. In vivo, the radiological and histological evaluation showed that the pharmacological inhibition of BRD9 alleviated IDD development in rat IDD model. Our results indicated that BRD9 could promote IDD via the NOX1/ROS/ NF-κB axis by inducing matrix degradation and pyroptosis. Targeting BRD9 may be a potential therapeutic strategy in treating IDD.
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Affiliation(s)
- Zhihuai Deng
- Department of Spine Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yangyang Zhang
- Department of Spine Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yuanxin Zhu
- Department of Spine Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jianxiong Zhu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Department of Orthopedics, the Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shuangxing Li
- Department of Spine Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zhengqi Huang
- Department of Spine Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Tianyu Qin
- Department of Spine Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Department of Orthopedics, the Eighth Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Jiajun Wu
- Department of Spine Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Chao Zhang
- Department of Spine Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Weijian Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Department of Orthopedics, the Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Dongsheng Huang
- Department of Spine Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Wei Ye
- Department of Spine Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.
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71
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Shang L, Ma H, Zhang X, Mao R, Ma C, Ruan Z. Docosahexaenoic acid alleviates the excessive degradation of extracellular matrix in the nucleus pulposus by reducing the content of lncRNA NEAT1 to prevent the progression of intervertebral disc degeneration. Clin Exp Pharmacol Physiol 2023; 50:403-414. [PMID: 36732892 DOI: 10.1111/1440-1681.13757] [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: 08/01/2022] [Revised: 01/04/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023]
Abstract
The pathogenesis of intervertebral disc degeneration (IVDD), as a multifactorial disease, has not been fully elucidated. However, damage to the stress-bearing system in the intervertebral disc (IVD) mediated by the excessive decomposition of extracellular matrix (ECM) in nucleus pulposus (NP) cells caused by local stimulation is widely considered the core pathological process underlying IVDD. Docosahexaenoic acid (DHA) plays a protective role in various chronic diseases. However, whether it can have such effects in IVDD has not been clearly reported. In recent years, in-depth research on the role of long non-coding RNA (lncRNA) nuclear-enriched transcript 1 (NEAT1) in various diseases has continuously emerged, but such research in the field of IVD is not sufficient. In this study, tert-butyl hydroperoxide (TBHP) was used to induce oxidative stress in human NP cells and construct a cell model of excessive ECM decomposition in vitro. A plasmid over-expressing lncRNA NEAT1 was introduced into human NP cells to establish an NP cell model. For this specific experiment, Cell Counting Kit 8 was used to explore the timing and concentration of DHA and TBHP activity. A common gene chip platform was also used to select potential lncRNAs. Western blot and immunofluorescence assays were used to detect the expression of ECM-related proteins in NP cells in each group. Quantitative real-time polymerase chain reaction was used to detect the expression of lncRNA NEAT1 in NP cells in each group. On this basis, we proved that DHA alleviates excessive degradation of the ECM in NP cells in response to oxidative stress by reducing the content of lncRNA NEAT1. In conclusion, our study reveals the mechanism through which DHA relieves excessive ECM decomposition in NP cells and provides a potential new idea for the treatment of IVDD in clinical practice.
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Affiliation(s)
- Liang Shang
- Department of Spine Surgery, School of Medicine, ShiHeZi University, Xinjiang, China
| | - Hui Ma
- Department of Spine Surgery, First Affiliated Hospital, School of Medicine, Shihezi University, Xinjiang, China
| | - Xiao Zhang
- Department of Spine Surgery, School of Medicine, ShiHeZi University, Xinjiang, China
| | - RunZe Mao
- Department of Spine Surgery, School of Medicine, ShiHeZi University, Xinjiang, China
| | - CunYou Ma
- Department of Spine Surgery, School of Medicine, ShiHeZi University, Xinjiang, China
| | - Zhi Ruan
- Department of Spine Surgery, First Affiliated Hospital, School of Medicine, Shihezi University, Xinjiang, China
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72
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Enhancement of stability and dermal delivery of Carissa carandas Linn. leaf extract by liquid crystals. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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73
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Dong YL, Tang N, Zhao H, Liang JQ. Nucleus Pulposus Cells from Calcified Discs Promote the Degradation of the Extracellular Matrix through Upregulation of the GATA3 Expression. Curr Med Sci 2023; 43:146-155. [PMID: 36821040 DOI: 10.1007/s11596-022-2686-1] [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: 03/20/2022] [Accepted: 05/25/2022] [Indexed: 02/24/2023]
Abstract
OBJECTIVE Disc calcification is strongly associated with disc degeneration; however, the underlying mechanisms driving its pathogenesis are poorly understood. This study aimed to provide a gene expression profile of nucleus pulposus cells (NPCs) from calcified discs, and clarify the potential mechanism in disc degeneration. METHODS Primary NPCs were isolated from calcified and control discs (CAL-NPC and CON-NPC), respectively. The proliferation and extracellular matrix (ECM) metabolism capacities of the cells were evaluated using MTT and Western blotting, respectively. RNA sequencing was used to identify differentially expressed genes (DEGs) in the CAL-NPCs. The biological functions of the DEGs were analyzed using the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases. The transcription factor database and Cytoscape software were used to construct the transcription factor-DEGs regulatory network. The role of the verified transcription factor in NPC proliferation and ECM metabolism was also investigated. RESULTS The CAL-NPCs exhibited a lower proliferation rate and higher ECM degradation capacity than the CON-NPCs. In total, 375 DEGs were identified in the CAL-NPCs. The GO and KEGG analyses showed that the DEGs were primarily involved in the regulation of ribonuclease activity and NF-kappa B and p53 signaling pathways. GATA-binding protein 3 (GATA3) with the highest verified levels was selected for further studies. Overexpression of GATA3 in the CON-NPCs significantly inhibited their proliferation and promoted their ECM degradation function, while the knockdown of GATA3 in the CAL-NPCs resulted in the opposite phenotypes. CONCLUSION This study provided a comprehensive gene expression profile of the NPCs from the calcified discs and supported that GATA3 could be a potential target for reversing calcification-associated disc degeneration.
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Affiliation(s)
- Yu-Lei Dong
- Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Ning Tang
- Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Hong Zhao
- Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Jin-Qian Liang
- Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.
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74
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Nimbolide targeting SIRT1 mitigates intervertebral disc degeneration by reprogramming cholesterol metabolism and inhibiting inflammatory signaling. Acta Pharm Sin B 2023; 13:2269-2280. [DOI: 10.1016/j.apsb.2023.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 01/19/2023] [Accepted: 01/22/2023] [Indexed: 03/06/2023] Open
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75
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Lu R, Xu H, Deng X, Wang Y, He Z, Xu S, Liang S, Huang X, You H, Guo F, Cheng P, Chen AM. Physalin A alleviates intervertebral disc degeneration via anti-inflammatory and anti-fibrotic effects. J Orthop Translat 2023; 39:74-87. [PMID: 36788965 PMCID: PMC9898579 DOI: 10.1016/j.jot.2023.01.001] [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: 10/19/2022] [Revised: 12/21/2022] [Accepted: 01/05/2023] [Indexed: 01/27/2023] Open
Abstract
Background The incidence of intervertebral disc degeneration (IVDD) is a common degenerative disease with inflammation, decreased autophagy, and progression of fibrosis as its possible pathogenesis. Physalin A (PA) is a widely studied anti-inflammatory drug. However, its therapeutic effects on IVDD remain unexplored. Therefore, we aimed to explore the therapeutic potential of PA in IVDD progression. Materials and methods In vivo, we investigated PA bioactivity using a puncture-induced IVDD rat model. IVDD signals and height changes were detected using X-ray, micro-CT, and MRI, and structural and molecular lesions using histological staining and immunohistochemistry of intervertebral disc sections. In vivo, interleukin-1 beta (IL-1β) and TGF-β1 were employed to establish inflammation fibrotic nucleus pulposus (NP) cells. The PA effect duration, concentration, influence pathways, and pathological changes in IVDD treatment were elucidated using western blotting, real-time PCR, and immunofluorescence. Results PA exerted significant effects on IVDD remission due to anti-inflammation, fibrosis reduction, and autophagy enhancement. In vitro, PA improved inflammation by blocking the NF-κB and MAPK pathways, whereas it promoted autophagy via the PI3K/AKT/mTOR pathway and affected fibrotic progression by regulating the SMAD2/3 pathway. Moreover, PA improved the disc degeneration process in IVDD model. Conclusions PA exhibited significant anti-inflammatory and anti-fibrotic effects and improved autophagy in vivo and in vitro IVDD models, thus effectively relieving IVDD progression, indicating it is a promising agent for IVDD treatment. The translational potential of this article This study successfully reveals that PA, a natural bioactive withanolide, effectively relieved IVDD progression via inflammation inhibition, fibrosis reduction, and autophagy enhancement, indicating it is a promising agent for IVDD treatment.
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Affiliation(s)
- Rui Lu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Haoran Xu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiaofeng Deng
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong, University of Science and Technology, Wuhan, 430030, China
| | - Yingguang Wang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zhiyi He
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Shimeng Xu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Shuang Liang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiaojian Huang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hongbo You
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fengjing Guo
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Peng Cheng
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China,Corresponding author. Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei Province, China.
| | - An-min Chen
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China,Corresponding author. Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei Province, China.
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76
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Xia Y, Wang H, Yang R, Hou Y, Li Y, Zhu J, Fu C. Biomaterials delivery strategies to repair degenerated intervertebral discs by regulating the inflammatory microenvironment. Front Immunol 2023; 14:1051606. [PMID: 36756124 PMCID: PMC9900107 DOI: 10.3389/fimmu.2023.1051606] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 01/03/2023] [Indexed: 01/24/2023] Open
Abstract
Intervertebral disc degeneration (IVDD) is one of the leading causes of lower back pain. Although IVDD cannot directly cause death, it can cause pain, psychological burdens, and economic burdens to patients. Current conservative treatments for IVDD can relieve pain but cannot reverse the disease. Patients who cannot tolerate pain usually resort to a strategy of surgical resection of the degenerated disc. However, the surgical removal of IVDD can affect the stability of adjacent discs. Furthermore, the probability of the reherniation of the intervertebral disc (IVD) after surgery is as high as 21.2%. Strategies based on tissue engineering to deliver stem cells for the regeneration of nucleus purposes (NP) and annulus fibrosus (AF) have been extensively studied. The developed biomaterials not only locally withstand the pressure of the IVD but also lay the foundation for the survival of stem cells. However, the structure of IVDs does not provide sufficient nutrients for delivered stem cells. The role of immune mechanisms in IVDD has recently become clear. In IVDD, the IVD that was originally in immune privilege prevents the attack of immune cells (mainly effector T cells and macrophages) and aggravates the disease. Immune regulatory and inflammatory factors released by effector T cells, macrophages, and the IVD further aggravate IVDD. Reversing IVDD by regulating the inflammatory microenvironment is a potential approach for the treatment of the disease. However, the biological factors modulating the inflammatory microenvironment easily degrade in vivo. It makes it possible for different biomaterials to modulate the inflammatory microenvironment to repair IVDD. In this review, we have discussed the structures of IVDs and the immune mechanisms underlying IVDD. We have described the immune mechanisms elicited by different biological factors, including tumor necrosis factors, interleukins, transforming growth factors, hypoxia-inducible factors, and reactive oxygen species in IVDs. Finally, we have discussed the biomaterials used to modulate the inflammatory microenvironment to repair IVDD and their development.
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Affiliation(s)
- Yuanliang Xia
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Hengyi Wang
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Ruohan Yang
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Yulin Hou
- Department of Cardiology, Guangyuan Central Hospital, Guangyuan, China
| | - Yuehong Li
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Jianshu Zhu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Changfeng Fu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China,*Correspondence: Changfeng Fu,
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77
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Lu Z, Chen P, Xu Q, Li B, Jiang S, Jiang L, Zheng X. Constitutive and conditional gene knockout mice for the study of intervertebral disc degeneration: Current status, decision considerations, and future possibilities. JOR Spine 2023; 6:e1242. [PMID: 36994464 PMCID: PMC10041386 DOI: 10.1002/jsp2.1242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 12/13/2022] [Accepted: 12/22/2022] [Indexed: 01/09/2023] Open
Abstract
There have been an increasing number of patients with degenerative disc diseases due to the aging population. In light of this, studies on the pathogenesis of intervertebral disc degeneration have become a hot topic, and gene knockout mice have become a valuable tool in this field of research. With the development of science and technology, constitutive gene knockout mice can be constructed using homologous recombination, zinc finger nuclease, transcription activator-like effector nuclease technology and clustered regularly interspaced short palindromic repeats/Cas9 (CRISPR/Cas9) system, and conditional gene knockout mice can be constructed using the Cre/LoxP system. The gene-edited mice using these techniques have been widely used in the studies on disc degeneration. This paper reviews the development process and principles of these technologies, functions of the edited genes in disc degeneration, advantages, and disadvantages of different methods and possible targets of the specific Cre recombinase in intervertebral discs. Recommendations for the choice of suitable gene-edited model mice are presented. At the same time, possible technological improvements in the future are also discussed.
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Affiliation(s)
- Ze‐Yu Lu
- Spine Center Xinhua Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Peng‐Bo Chen
- Spine Center Xinhua Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Qing‐Yin Xu
- Spine Center Xinhua Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Bo Li
- Spine Center Xinhua Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Sheng‐Dan Jiang
- Spine Center Xinhua Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Lei‐Sheng Jiang
- Spine Center Xinhua Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Xin‐Feng Zheng
- Spine Center Xinhua Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
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78
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Wang YH, Zhou Y, Xie YZ, Fan XH, Liang WQ, Wei X, Zhao MD, Huo YX, Zhang T, Yin Y. The effect of ultrasound-guided acupotomy and Juanbi decoction on lumbar disc herniation: A randomized controlled trial. Medicine (Baltimore) 2023; 102:e32622. [PMID: 36607879 PMCID: PMC9829273 DOI: 10.1097/md.0000000000032622] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Acupotomy as well as Juanbi decoction has been used in the treatment of lumbar disc herniation. However, there is no study on ultrasound-guided acupotomy combined with Juanbi decoction in the treatment of lumbar disc herniation. METHOD This study was supported by the Sichuan Provincial Administration of Traditional Chinese Medicine [grant number: 2020LC0163] and the Science and Technology Department of Sichuan Province [grant number: 2022YFS0418]. This study was 3 center, open, randomized, controlled trial, and was carried out from December 2020 to December 2022. A total of 60 eligible patients with LDH were split into group A and group B at random. The group B received Juanbi Decoction 3 times daily for 2 weeks along with an acupotomy assisted by ultrasound. The acupotomy was administered once a week. The same protocol was used with the group A, but the Juanbi Decoction was replaced with normal saline. OBSERVATION INDEX Visual analogue scale (VAS) score on 1 day and 1 week after treatment, VAS score, Japanese orthopedic association low back pain score(JOA) rate, Oswestry Disability Index (ODI), and low back outcome scale (LBOS) at 1, 3, 6, and 12 months after treatment in 2 groups. RESULTS There were no significant differences in general information, VAS score before treatment, JOA, ODI, and LBOS between the 2 groups (P > .05). Intra-group comparison: VAS score, JOA rate, ODI, and LBOS were compared before and after treatment in both groups, and the differences were statistically significant (P < .05). There were significant differences in VAS and LBOS between the 2 groups at 3 and 6 months after treatment, and there were statistically significant differences in ODI and JOA rates at 3, 6, and 12 months after treatment between the 2 groups. CONCLUSION Acupotomy aided by ultrasound combined with Juanbi Decoction significantly relieves lumbar pain and can improve lumbar function in patients with LDH, and the clinical efficacy lasts for about 6 months.
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Affiliation(s)
- Ye-hui Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- * Correspondence: Ye-hui Wang, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, China (e-mail: )
| | - Yi Zhou
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yi-zhou Xie
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xiao-hong Fan
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Wan-qiang Liang
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Xing Wei
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Ming-dong Zhao
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Yu-xiong Huo
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Ting Zhang
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
| | - Yun Yin
- Qionglai Hospital of Traditional Chinese Medicine, Qionglai, Chengdu, Sichuan, China
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79
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Xiao L, Gao D, Zhang Y, Liu C, Yin Z. Codelivery of TGF-β1 and anti-miR-141 by PLGA microspheres inhibits progression of intervertebral disc degeneration. J Orthop Surg Res 2023; 18:17. [PMID: 36609253 PMCID: PMC9817358 DOI: 10.1186/s13018-023-03501-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 01/02/2023] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Cervical and lumbar pain is usually caused by degeneration of the nucleus pulposus (NP). As a powerful therapeutic strategy, tissue engineering can effectively restore the normal biological properties of the spinal unit. Previous studies suggested that poly(lactic-co-glycolic acid) (PLGA) microspheres are effective carriers of cells and biomolecules in NP tissue engineering. This study aims to explore the therapeutic effect of PLGA microspheres coloaded with transforming growth factor-β1 (TGF-β1) and anti-miR-141 on intervertebral disc degeneration (IDD). METHODS PLGA microspheres were characterized by scanning electron microscopy, a laser particle size analyzer, and laser confocal microscopy. The in vitro release rate of biomolecules from the microspheres was analyzed by reversed-phase high-performance liquid chromatography and agarose gel electrophoresis. The rat NP cells (NPCs) treated with the solutions released from microspheres for different lengths of time were assigned to a control group (Ctrl), an empty PLGA microsphere group (Mock microsphere, MS), a TGF-β1-loaded PLGA microsphere group (TMS), an anti-miR-141-loaded PLGA microsphere group (AMS), and an anti-miR-141 + TGF-β1-loaded PLGA microsphere group (ATMS). The proliferation and apoptosis of NPCs were observed by alamar blue and flow cytometry. The gene and protein expression of cartilage markers COL2A1 and ACAN were observed by RT-qPCR and Western blot. The rat model of IDD was established by tail puncture. Rats were divided into a control group (Ctrl), a mock operation group (Mock), a TGF-β1 microsphere group (TMS), an anti-miR-141 microsphere group (AMS), and an anti-miR-141 + TGF-β1 microsphere group (ATMS). The degree of rat tail IDD was assessed in each group through magnetic resonance imaging (MRI), safranin O-fast green staining, immunohistochemistry, and Western blotting. RESULTS PLGA microspheres were stably coloaded and could sustainably release TGF-β1 and anti-miR-141. The results of in vitro cell experiments showed that the release solution of PLGA microspheres significantly enhanced the proliferation of NPCs without inducing their apoptosis and significantly upregulated cartilage markers in NPCs. The effect of microspheres was greater in the ATMS group than that in the TMS group and AMS group. In vivo experiments showed that IDD could be effectively inhibited and reversed by adding microspheres coloaded with TGF-β1 and/or anti-miR-141, and the effect was greatest in the ATMS group. CONCLUSION PLGA microspheres coloaded with TGF-β1 and anti-miR-141 can reverse IDD by inhibiting the degeneration of NPCs.
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Affiliation(s)
- Liang Xiao
- grid.412679.f0000 0004 1771 3402Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 China
| | - Daokuan Gao
- grid.452929.10000 0004 8513 0241Department of Spine Surgery, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001 China
| | - Yu Zhang
- grid.452929.10000 0004 8513 0241Department of Spine Surgery, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001 China
| | - Chen Liu
- grid.452929.10000 0004 8513 0241Department of Spine Surgery, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001 China
| | - Zongsheng Yin
- grid.412679.f0000 0004 1771 3402Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 China ,grid.412679.f0000 0004 1771 3402Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, 218 JiXi Road, Hefei, 230022 Anhui China
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80
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Kuang W, Jiang C, Yu C, Hu J, Duan Y, Chen Z. A microarray data analysis investigating the pathogenesis and potential biomarkers of autophagy and ferroptosis in intervertebral disc degeneration. Front Genet 2023; 13:1090467. [PMID: 36685932 PMCID: PMC9846041 DOI: 10.3389/fgene.2022.1090467] [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: 11/05/2022] [Accepted: 12/13/2022] [Indexed: 01/05/2023] Open
Abstract
Background: Intervertebral disc degeneration (IDD) entails complex pathological changes and causes lower back pain (LBP). However, there is still a lack of understanding of the mechanisms involved in IDD, particularly regarding the roles of autophagy and ferroptosis. The current study used microarray data to investigate the pathogenesis of IDD and potential biomarkers related to autophagy and ferroptosis in IDD. Methods: Differentially expressed genes (DEGs) were identified by analyzing the mRNA and miRNA expression profiles of IDD patients from the Gene Expression Omnibus (GEO). The protein-protein interaction network, Gene Ontology (GO) enrichment, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, and gene set enrichment analysis (GSEA) were utilized. The Human Autophagy Database (HADb) and Ferroptosis Database were used in conjunction with hub genes to identify autophagy- and ferroptosis-related genes. The Transcription Factor -hub gene-miRNA network was constructed. Lastly, the expression of DEGs in normal and degenerated nucleus pulposus cells (NPCs) was investigated via the quantitative reverse transcription polymerase chain reaction (qRT-PCR). Results: A total of 362 DEGs associated with IDD were identified. GO and KEGG analyses indicated that oxidative stress, extracellular matrix, PI3K-AKT signaling pathway, and ferroptosis were key factors in IDD occurrence. GSEA indicated that IDD was associated with changes in autophagy, iron ion homeostasis, extracellular matrix, and oxidative stress. Eighty-nine hub genes were obtained, including five that were autophagy-related and three that were ferroptosis-related. Of these, TP53 and SESN2 were the intersections of autophagy- and ferroptosis-related genes. In qRT-PCR analysis, CANX, SLC38A1, and TP53 were downregulated in degenerative NPCs, whereas GNAI3, SESN2, and VAMP3 were upregulated. Conclusion: The current study revealed aspects of autophagy- and ferroptosis-related genes involved in IDD pathogenesis, warranting further investigation.
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Affiliation(s)
| | | | | | | | | | - Zhong Chen
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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81
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Liu Z, Zhu J, Liu H, Fu C. Natural products can modulate inflammation in intervertebral disc degeneration. Front Pharmacol 2023; 14:1150835. [PMID: 36874009 PMCID: PMC9978229 DOI: 10.3389/fphar.2023.1150835] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
Intervertebral discs (IVDs) play a crucial role in maintaining normal vertebral anatomy as well as mobile function. Intervertebral disc degeneration (IDD) is a common clinical symptom and is an important cause of low back pain (LBP). IDD is initially considered to be associated with aging and abnormal mechanical loads. However, over recent years, researchers have discovered that IDD is caused by a variety of mechanisms, including persistent inflammation, functional cell loss, accelerated extracellular matrix decomposition, the imbalance of functional components, and genetic metabolic disorders. Of these, inflammation is thought to interact with other mechanisms and is closely associated with the production of pain. Considering the key role of inflammation in IDD, the modulation of inflammation provides us with new options for mitigating the progression of degeneration and may even cause reversal. Many natural substances possess anti-inflammatory functions. Due to the wide availability of such substances, it is important that we screen and identify natural agents that are capable of regulating IVD inflammation. In fact, many studies have demonstrated the potential clinical application of natural substances for the regulation of inflammation in IDD; some of these have been proven to have excellent biosafety. In this review, we summarize the mechanisms and interactions that are responsible for inflammation in IDD and review the application of natural products for the modulation of degenerative disc inflammation.
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Affiliation(s)
- Zongtai Liu
- Department of Spine Surgery, First Hospital of Jilin University, Changchun, China.,Department of Orthopedics, Affiliated Hospital of Beihua University, Jilin, China
| | - Jiabo Zhu
- Department of Orthopedics, Affiliated Hospital of Beihua University, Jilin, China
| | - Haiyan Liu
- Department of Orthopedics, Baicheng Central Hospital, Baicheng, China
| | - Changfeng Fu
- Department of Spine Surgery, First Hospital of Jilin University, Changchun, China
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82
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Zhu X, Guo S, Zhang M, Bai X. Emodin protects against apoptosis and inflammation by regulating reactive oxygen species-mediated NF- κB signaling in interleukin-1 β-stimulated human nucleus pulposus cells. Hum Exp Toxicol 2023; 42:9603271221138552. [PMID: 36598795 DOI: 10.1177/09603271221138552] [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: 01/05/2023]
Abstract
Intervertebral disc degeneration (IDD) is a complex degradative disorder associated with inflammation. Emodin, an anthraquinone derivative, possesses strong anti-inflammatory activity. This study focused on the in vitro therapeutic action of emodin in a cellular model of IDD. Human nucleus pulposus cells (NPCs) were stimulated with interleukin-1β (IL-1β) to induce inflammation. Cell Counting Kit-8 and terminal deoxynucleotidyl transferase dUTP nick end labeling staining assays were performed to evaluate the viability and apoptosis of NPCs, respectively. Caspase-3 activity was measured to indirectly assess cell apoptosis. Western blot analysis was performed to detect protein expression levels. Reverse transcription-polymerase chain reaction was performed for the detection of relative mRNA levels of tumor necrosis factor-α (TNF-α) and IL-6. Enzyme-linked immunosorbent assay was performed to analyze TNF-α and IL-6 secretion. Our results showed that emodin treatment mitigated IL-1β-induced reduction of cell viability in NPCs. Moreover, the increase in reactive oxygen species (ROS) production, apoptotic rate, and caspase-3 activity in IL-1β-stimulated NPCs was reduced by emodin treatment. Treatment with emodin also abolished IL-1β-induced inflammation in NPCs, as indicated by reduced secretion of IL-6 and TNF-α. Besides, the increase in expression levels of phosphorylated p65 and nuclear p65 in IL-1β-stimulated NPCs was suppressed by emodin treatment. Furthermore, inhibition of nuclear factor kappa B (NF-κB) activation with pyrrolidine dithiocarbamate aggravated the protective effects of emodin. These results suggested that emodin protected NPCs against IL-1β-induced apoptosis and inflammation via inhibiting ROS-mediated activation of NF-κB.
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Affiliation(s)
- Xiaojuan Zhu
- Department of Geriatrics, Baoding No.1 Central Hospital, Baoding, Hebei 071000, China
| | - Shuqin Guo
- Department of Endocrinology, Baoding No.1 Central Hospital, Baoding, Hebei 071000, China
| | - Mingyuan Zhang
- Department of Rehabilitation, Laishui County TCM Hospital, Baoding, Hebei 074199, China
| | - Xiaoliang Bai
- The Fifth Department of Orthopedics, Baoding No.1 Central Hospital, Baoding, Hebei 071000, China
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83
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Zhang C, Liu Q, Yin Q. HSA-MIR-183-3P TARGETING ATAXIA-TELANGIECTASIA MUTATED PROTEIN REGULATION OF NF-ΚB SIGNALING PATHWAY AFFECTS CELLULAR SENESCENCE CAUSED BY DNA DAMAGE IN LUMBAR DISC DEGENERATION. ACTA ENDOCRINOLOGICA (BUCHAREST, ROMANIA : 2005) 2023; 19:10-18. [PMID: 37601718 PMCID: PMC10439315 DOI: 10.4183/aeb.2023.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Aims To test the effect of Hsa-miR-183-3p on cell aging and disc degeneration in lumbar intervertebral disc. Methods This study combined clinical research with basic cell experiment, analyzing clinical data from patients with lumbar disc degeneration and traumatic lumbar spine fracture, as well as the differences in baseline data. The degree of lumbar disc injury in patients of different ages was also compared. Differentially expressed miRNAs were predicted via GEO database, and qPCR confirmation was determined by collecting cartilage endplates from two groups. ACAN, Col2A1, p16, p21, and p53 were detected by immunofluorescence, Western blot and qPCR in human nucleus pulposus cells. Changes of cell senescence were detected. The binding of Hsa-miR-183-3p to ataxia-telangiectasia mutated protein was confirmed by dual luciferase reporter assay. Results Degenerative discs showed elevated expression of hsa-miR-183-3p, which may be upregulated by TNF-α via NF-κB signaling pathway and target ataxia-telangiectasia mutated protein regulation. Conclusion Degeneration of the intervertebral disc can be accelerated by TNF-α. Additionally, Hsa-miR-183-3p passed NF-κB signaling pathway is blocked via up-regulation of TNF-α to reduce inflammation via targeting ataxia-telangiectasia mutated protein. As a result, this negative feedback mechanism may assist in maintaining a low degenerative load and preserving chronic disc degeneration.
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Affiliation(s)
- C. Zhang
- Southern Medical University, Guangzhou, Guangdong, China
- Department of Orthopedics, the 927 Hospital of Joint Logistic Support Force, Pu’Er, Yunnan, China
| | - Q. Liu
- Department of Orthopedics, the 927 Hospital of Joint Logistic Support Force, Pu’Er, Yunnan, China
| | - Q. Yin
- Southern Medical University, Guangzhou, Guangdong, China
- Orthopedics Hospital of General Hospital of Guangzhou Military Region of People’s Liberation Army, Guangzhou, Guangdong, China
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84
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Li W, Zhou P, Yan B, Qi M, Chen Y, Shang L, Guan J, Zhang L, Mao Y. Disc regeneration by injectable fucoidan-methacrylated dextran hydrogels through mechanical transduction and macrophage immunomodulation. J Tissue Eng 2023; 14:20417314231180050. [PMID: 37427012 PMCID: PMC10328174 DOI: 10.1177/20417314231180050] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 05/19/2023] [Indexed: 07/11/2023] Open
Abstract
Modulating a favorable inflammatory microenvironment that facilitates the recovery of degenerated discs is a key strategy in the treatment of intervertebral disc (IVD) degeneration (IDD). More interestingly, well-mechanized tissue-engineered scaffolds have been proven in recent years to be capable of sensing mechanical transduction to enhance the proliferation and activation of nucleus pulposus cells (NPC) and have demonstrated an increased potential in the treatment and recovery of degenerative discs. Additionally, existing surgical procedures may not be suitable for IDD treatment, warranting the requirement of new regenerative therapies for the restoration of disc structure and function. In this study, a light-sensitive injectable polysaccharide composite hydrogel with excellent mechanical properties was prepared using dextrose methacrylate (DexMA) and fucoidan with inflammation-modulating properties. Through numerous in vivo experiments, it was shown that the co-culture of this composite hydrogel with interleukin-1β-stimulated NPCs was able to promote cell proliferation whilst preventing inflammation. Additionally, activation of the caveolin1-yes-associated protein (CAV1-YAP) mechanotransduction axis promoted extracellular matrix (ECM) metabolism and thus jointly promoted IVD regeneration. After injection into an IDD rat model, the composite hydrogel inhibited the local inflammatory response by inducing macrophage M2 polarization and gradually reducing the ECM degradation. In this study, we propose a fucoidan-DexMA composite hydrogel, which provides an attractive approach for IVD regeneration.
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Affiliation(s)
- Weifeng Li
- Department of Orthopaedics and
Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical
College, Bengbu, China
- Anhui Province Key Laboratory of Tissue
Transplantation, Bengbu Medical College, Bengbu, China
- Department of Orthopedics, Lixin County
People’s Hospital, Bozhou, China
| | - Pinghui Zhou
- Department of Orthopaedics and
Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical
College, Bengbu, China
- Anhui Province Key Laboratory of Tissue
Transplantation, Bengbu Medical College, Bengbu, China
| | - Bomin Yan
- Department of Orthopaedics and
Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical
College, Bengbu, China
- Anhui Province Key Laboratory of Tissue
Transplantation, Bengbu Medical College, Bengbu, China
| | - Meiyao Qi
- Department of Orthopaedics and
Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical
College, Bengbu, China
- Anhui Province Key Laboratory of Tissue
Transplantation, Bengbu Medical College, Bengbu, China
| | - Yedan Chen
- Department of Orthopaedics and
Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical
College, Bengbu, China
| | - Lijun Shang
- School of Life Sciences, Bengbu Medical
College, Bengbu, China
| | - Jianzhong Guan
- Department of Orthopaedics and
Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical
College, Bengbu, China
- Anhui Province Key Laboratory of Tissue
Transplantation, Bengbu Medical College, Bengbu, China
| | - Li Zhang
- Department of Orthopaedics and
Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical
College, Bengbu, China
- Anhui Province Key Laboratory of Tissue
Transplantation, Bengbu Medical College, Bengbu, China
| | - Yingji Mao
- Department of Orthopaedics and
Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical
College, Bengbu, China
- Anhui Province Key Laboratory of Tissue
Transplantation, Bengbu Medical College, Bengbu, China
- School of Life Sciences, Bengbu Medical
College, Bengbu, China
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85
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Role of Advanced Glycation End Products in Intervertebral Disc Degeneration: Mechanism and Therapeutic Potential. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7299005. [PMID: 36573114 PMCID: PMC9789911 DOI: 10.1155/2022/7299005] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/22/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022]
Abstract
The incidence of low back pain caused by lumbar disc degeneration is high, and it can lead to loss of work ability and impose heavy social and economic burdens. The pathogenesis of low back pain is unclear, and there are no effective treatments. With age, the deposition of advanced glycation end products (AGEs) in intervertebral disc (IVD) gradually increases and is accelerated by diabetes and a high-AGEs diet, leading to destruction of the annulus fibrosus (AF), nucleus pulposus (NP), and cartilage endplate (CEP) and finally intervertebral disc degeneration (IDD). Reducing the accumulation of AGEs in IVD and blocking the transmission of downstream signals caused by AGEs have a significant effect on alleviating IDD. In this review, we summarize the mechanism by which AGEs induce IDD and potential treatment strategies.
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86
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Song C, Cai W, Liu F, Cheng K, Guo D, Liu Z. An in-depth analysis of the immunomodulatory mechanisms of intervertebral disc degeneration. JOR Spine 2022; 5:e1233. [PMID: 36601372 PMCID: PMC9799087 DOI: 10.1002/jsp2.1233] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/29/2022] [Accepted: 10/20/2022] [Indexed: 12/13/2022] Open
Abstract
Intervertebral disc degeneration (IVDD) is the pathological basis of disc herniation, spinal stenosis, and other related diseases, and the lower back pain it produces lays a heavy financial burden on individuals and society. Thus, it is essential to comprehend IVDD's pathophysiology. Numerous factors, such as inflammatory factors, oxidative stress, apoptosis, matrix metalloproteinases, are linked to IVDD pathogenesis. Despite the fact that many researches has provided explanations for the pathophysiology of IVDD, these studies are typically singular, restricted, and isolated, expound only on one or two components, and do not systematically analyze and summarize the numerous influencing elements. In addition, we discovered that the incidence of many chronic diseases in the field of orthopedics may be thoroughly and systematically defined in terms of immunological systems. In order to provide a theoretical foundation for an in-depth understanding of the pathological process of IVDD and the formulation of more effective prevention and treatment measures, this review provides a comprehensive and systematic account of the pathogenesis of IVDD from the physical to the molecular barriers of the intervertebral disc, from the nucleus pulposus tissue to the cellular to the immune-molecular level.
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Affiliation(s)
- Chao Song
- Department of Orthopedics and Traumatology (Trauma and Bonesetting)The Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical UniversityLuzhouChina
| | - Weiye Cai
- Department of Orthopedics and Traumatology (Trauma and Bonesetting)The Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical UniversityLuzhouChina
| | - Fei Liu
- Department of Orthopedics and Traumatology (Trauma and Bonesetting)The Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical UniversityLuzhouChina
| | - Kang Cheng
- Department of Orthopedics and Traumatology (Trauma and Bonesetting)The Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical UniversityLuzhouChina
| | - Daru Guo
- Department of Orthopedics and Traumatology (Trauma and Bonesetting)The Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical UniversityLuzhouChina
| | - Zongchao Liu
- Department of Orthopedics and Traumatology (Trauma and Bonesetting)The Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical UniversityLuzhouChina
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Wang Z, An J, Zhu D, Chen H, Lin A, Kang J, Liu W, Kang X. Periostin: an emerging activator of multiple signaling pathways. J Cell Commun Signal 2022; 16:515-530. [PMID: 35412260 PMCID: PMC9733775 DOI: 10.1007/s12079-022-00674-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/07/2022] [Indexed: 12/13/2022] Open
Abstract
Matricellular proteins are responsible for regulating the microenvironment, the behaviors of surrounding cells, and the homeostasis of tissues. Periostin (POSTN), a non-structural matricellular protein, can bind to many extracellular matrix proteins through its different domains. POSTN usually presents at low levels in most adult tissues but is highly expressed in pathological sites such as in tumors and inflamed organs. POSTN can bind to diverse integrins to interact with multiple signaling pathways within cells, which is one of its core biological functions. Increasing evidence shows that POSTN can activate the TGF-β, the PI3K/Akt, the Wnt, the RhoA/ROCK, the NF-κB, the MAPK and the JAK pathways to promote the occurrence and development of many diseases, especially cancer and inflammatory diseases. Furthermore, POSTN can interact with some pathways in an upstream and downstream relationship, forming complicated crosstalk. This article focuses on the interactions between POSTN and different signaling pathways in diverse diseases, attempting to explain the mechanisms of interaction and provide novel guidelines for the development of targeted therapies.
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Affiliation(s)
- Zhaoheng Wang
- grid.411294.b0000 0004 1798 9345Lanzhou University Second Hospital, 82, Cuiyingmen, Lanzhou, 730030 People’s Republic of China ,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730030 People’s Republic of China
| | - Jiangdong An
- grid.411294.b0000 0004 1798 9345Lanzhou University Second Hospital, 82, Cuiyingmen, Lanzhou, 730030 People’s Republic of China
| | - Daxue Zhu
- grid.411294.b0000 0004 1798 9345Lanzhou University Second Hospital, 82, Cuiyingmen, Lanzhou, 730030 People’s Republic of China ,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730030 People’s Republic of China
| | - Haiwei Chen
- grid.411294.b0000 0004 1798 9345Lanzhou University Second Hospital, 82, Cuiyingmen, Lanzhou, 730030 People’s Republic of China ,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730030 People’s Republic of China
| | - Aixin Lin
- grid.411294.b0000 0004 1798 9345Lanzhou University Second Hospital, 82, Cuiyingmen, Lanzhou, 730030 People’s Republic of China ,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730030 People’s Republic of China
| | - Jihe Kang
- grid.411294.b0000 0004 1798 9345Lanzhou University Second Hospital, 82, Cuiyingmen, Lanzhou, 730030 People’s Republic of China ,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730030 People’s Republic of China
| | - Wenzhao Liu
- grid.411294.b0000 0004 1798 9345Lanzhou University Second Hospital, 82, Cuiyingmen, Lanzhou, 730030 People’s Republic of China ,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730030 People’s Republic of China
| | - Xuewen Kang
- grid.411294.b0000 0004 1798 9345Lanzhou University Second Hospital, 82, Cuiyingmen, Lanzhou, 730030 People’s Republic of China ,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730030 People’s Republic of China
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Cecilio FA, Siéssere S, Bettiol NB, Gauch CG, de Vasconcelos PB, Gonçalves LMN, Andrade LM, Regalo IH, Regalo SCH, Palinkas M. Effect of intervertebral disc degeneration on the stomatognathic system function in adults. Cranio 2022:1-9. [PMID: 36377796 DOI: 10.1080/08869634.2022.2144440] [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: 11/16/2022]
Abstract
OBJECTIVE To analyze the electromyographic activity (EMG) and thermographic patterns of the masseter and temporalis muscles and pressure of the orofacial tissues in individuals with intervertebral disc degeneration (IDD). METHODS This study had two distinct groups: with IDD (n = 16) and controls (n = 16). EMG at rest, protrusion, right and left laterality, and maximum voluntary contraction were evaluated. Tongue, orbicularis oris, and buccinator muscles pressures were measured by Iowa Oral Performance Instrument. The thermographic patterns were analyzed using infrared thermography. RESULTS Comparisons between groups showed significant differences regarding at rest [right (p = 0.05) and left (p = 0.05) masseter and right temporal (p = 0.05)], orofacial tissue pressure [tongue (p = 0.001), orbicularis oris (p = 0.01), and buccinator (p = 0.0001)], but no significant differences for the thermographic patterns. CONCLUSION IDD modifies the functionality of the craniomandibular complex, influencing the performance of the stomatognathic system.
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Affiliation(s)
- Flavia Argentato Cecilio
- Department of Basic and Oral Biology, Ribeirão Preto School of Dentistry, University of São Paulo, Brazil
| | - Selma Siéssere
- Department of Basic and Oral Biology, Ribeirão Preto School of Dentistry, University of São Paulo, Brazil
- Department of Neuroscience and Behavioral Sciences, National Institute of Science and Technology in Translational Medicine, São Paulo, Brazil
| | - Nicole Barbosa Bettiol
- Department of Basic and Oral Biology, Ribeirão Preto School of Dentistry, University of São Paulo, Brazil
| | - Claire Genoveze Gauch
- Department of Basic and Oral Biology, Ribeirão Preto School of Dentistry, University of São Paulo, Brazil
| | | | | | - Lilian Mendes Andrade
- Department of Basic and Oral Biology, Ribeirão Preto School of Dentistry, University of São Paulo, Brazil
| | - Isabela Hallak Regalo
- Department of Basic and Oral Biology, Ribeirão Preto School of Dentistry, University of São Paulo, Brazil
| | - Simone Cecilio Hallak Regalo
- Department of Basic and Oral Biology, Ribeirão Preto School of Dentistry, University of São Paulo, Brazil
- Department of Neuroscience and Behavioral Sciences, National Institute of Science and Technology in Translational Medicine, São Paulo, Brazil
| | - Marcelo Palinkas
- Department of Basic and Oral Biology, Ribeirão Preto School of Dentistry, University of São Paulo, Brazil
- Department of Neuroscience and Behavioral Sciences, National Institute of Science and Technology in Translational Medicine, São Paulo, Brazil
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The Influence of Intervertebral Disc Microenvironment on the Biological Behavior of Engrafted Mesenchymal Stem Cells. Stem Cells Int 2022; 2022:8671482. [DOI: 10.1155/2022/8671482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/19/2022] [Accepted: 10/25/2022] [Indexed: 11/09/2022] Open
Abstract
Intervertebral disc degeneration is the main cause of low back pain. Traditional treatment methods cannot repair degenerated intervertebral disc tissue. The emergence of stem cell therapy makes it possible to regenerate and repair degenerated intervertebral disc tissue. At present, mesenchymal stem cells are the most studied, and different types of mesenchymal stem cells have their own characteristics. However, due to the harsh and complex internal microenvironment of the intervertebral disc, it will affect the biological behaviors of the implanted mesenchymal stem cells, such as viability, proliferation, migration, and chondrogenic differentiation, thereby affecting the therapeutic effect. This review is aimed at summarizing the influence of each intervertebral disc microenvironmental factor on the biological behavior of mesenchymal stem cells, so as to provide new ideas for using tissue engineering technology to assist stem cells to overcome the influence of the microenvironment in the future.
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Hydroxytyrosol Ameliorates Intervertebral Disc Degeneration and Neuropathic Pain by Reducing Oxidative Stress and Inflammation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2240894. [PMID: 36388163 PMCID: PMC9646310 DOI: 10.1155/2022/2240894] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/27/2022] [Accepted: 09/22/2022] [Indexed: 12/01/2022]
Abstract
Low back pain (LBP) seriously affects human quality of life. Intervertebral disc degeneration (IVDD) is the main pathological factor that leads to LBP, but the pathological mechanism underlying IVDD has not been fully elucidated. Neuropathic pain caused by IVDD is an important pathological factor affecting people's daily lives. Therefore, it is very important to identify therapeutic drugs to ameliorate IVDD and secondary neuropathic pain. Hydroxytyrosol (HT) is a natural compound derived from olive leaves and oil and has anti-inflammatory, antioxidant, and antitumor activities and other properties. In this study, TNF-α-stimulated human nucleus pulposus cells (HNPCs) were used to simulate the local inflammatory microenvironment observed in IVDD in vitro to explore the role of HT in alleviating various pathological processes associated with IVDD. A rat needle puncture model was used to further explore the role of HT in alleviating IVDD. Lipopolysaccharide (LPS) was used to stimulate microglia in vitro to comprehensively explore the role of HT in alleviating neuropathic pain, and a rat model involving chronic compression of the dorsal root ganglion (CCD) was established to simulate the neuropathic pain caused by IVDD. This study suggests that HT reduces the expression of cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS), the NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome, a disintegrin and metalloproteinase with thrombospondin motifs-4 (ADAMTS-4) and matrix metalloproteinase-13 (MMP-13); inhibits the production of mitochondrial reactive oxygen species (ROS); and maintains mitochondrial homeostasis. Thus, HT appears to reduce the rate of apoptosis and mitigate the loss of major intervertebral disc components by inhibiting the nuclear factor kappa-B (NF-κB) signaling pathway. Moreover, HT inhibited the secretion of COX-2, tumor necrosis factor-α (TNF-α), interleukin (IL)-6, IL-1β, and iNOS and activation of the NLRP3 inflammasome in microglia by inhibiting the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) and extracellular regulated protein kinase (ERK) signaling pathways. In conclusion, HT plays a protective role against IVDD and secondary neuropathic pain by inhibiting the NF-κB, PI3K/AKT, and ERK signaling pathways.
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91
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Zhang CY, Hu XC, Zhang GZ, Liu MQ, Chen HW, Kang XW. Role of Nrf2 and HO-1 in intervertebral disc degeneration. Connect Tissue Res 2022; 63:559-576. [PMID: 35736364 DOI: 10.1080/03008207.2022.2089565] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Intervertebral disc degeneration (IDD) is a common age-related disease with clinical manifestations of lumbar and leg pain and limited mobility. The pathogenesis of IDD is mainly mediated by the death of intervertebral disc (IVD) cells and the imbalance of extracellular matrix (ECM) synthesis and degradation. Oxidative stress and inflammatory reactions are the important factors causing this pathological change. Therefore, the regulation of reactive oxygen species and production of inflammatory factors may be an effective strategy to delay the progression of IDD. In recent years, nuclear factor erythroid 2-related factor 2 (Nrf2) and its downstream regulated protein heme oxygenase-1 (HO-1) have received special attention due to their antioxidant, anti-inflammatory and anti-apoptotic protective effects. Recent studies have elucidated the important role of these two proteins in the treatment of IDD disease. However, Nrf2 and HO-1 have not been systematically reported in IDD-related diseases. Therefore, this review describes the biological characteristics of Nrf2 and HO-1, the relationship between Nrf2- and HO-1-regulated oxidative stress and the inflammatory response and IDD, and the progress in research on some extracts targeting Nrf2 and HO-1 to improve IDD. Understanding the role and mechanism of Nrf2 and HO-1 in IDD may provide novel ideas for the clinical treatment and development of Nrf2- and HO-1-targeted drugs.
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Affiliation(s)
- Cang-Yu Zhang
- The second clinical medical college, Lanzhou University, Lanzhou, Gansu, PR China.,Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Xu-Chang Hu
- The second clinical medical college, Lanzhou University, Lanzhou, Gansu, PR China.,Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Guang-Zhi Zhang
- The second clinical medical college, Lanzhou University, Lanzhou, Gansu, PR China.,Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Ming-Qiang Liu
- The second clinical medical college, Lanzhou University, Lanzhou, Gansu, PR China.,Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Hai-Wei Chen
- The second clinical medical college, Lanzhou University, Lanzhou, Gansu, PR China.,Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Xue-Wen Kang
- The second clinical medical college, Lanzhou University, Lanzhou, Gansu, PR China.,Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
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92
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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: 4] [Impact Index Per Article: 2.0] [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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93
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Engineered Human Intervertebral Disc Model Inducing Degenerative Microglial Proinflammation. Int J Mol Sci 2022; 23:ijms232012216. [PMID: 36293070 PMCID: PMC9603448 DOI: 10.3390/ijms232012216] [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: 09/10/2022] [Revised: 10/06/2022] [Accepted: 10/11/2022] [Indexed: 11/17/2022] Open
Abstract
Degeneration of the intervertebral disc (IVD) is a major contributor to low back pain (LBP). IVD degeneration is characterized by abnormal production of inflammatory cytokines secreted by IVD cells. Although the underlying molecular mechanisms of LBP have not been elucidated, increasing evidence suggests that LBP is associated particularly with microglia in IVD tissues and the peridiscal space, aggravating the cascade of degenerative events. In this study, we implemented our microfluidic chemotaxis platform to investigate microglial inflammation in response to our reconstituted degenerative IVD models. The IVD models were constructed by stimulating human nucleus pulposus (NP) cells with interleukin-1β and producing interleukin-6 (129.93 folds), interleukin-8 (18.31 folds), C-C motif chemokine ligand-2 (CCL-2) (6.12 folds), and CCL-5 (5.68 folds). We measured microglial chemotaxis (p < 0.05) toward the conditioned media of the IVD models. In addition, we observed considerable activation of neurodegenerative and deactivation of protective microglia via upregulated expression of CD11b (p < 0.001) and down-regulation of CD206 protein (p < 0.001) by soluble factors from IVD models. This, in turn, enhances the inflammatory milieu in IVD tissues, causing matrix degradation and cellular damage. Our findings indicate that degenerative IVD may induce degenerative microglial proinflammation, leading to LBP development.
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94
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Oxidative Stress and Intervertebral Disc Degeneration: Pathophysiology, Signaling Pathway, and Therapy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1984742. [PMID: 36262281 PMCID: PMC9576411 DOI: 10.1155/2022/1984742] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 08/29/2022] [Accepted: 09/07/2022] [Indexed: 11/19/2022]
Abstract
Intervertebral disc degeneration (IDD), characterized as decreased proteoglycan content, ossification of endplate, and decreased intervertebral height, is one of the major reasons of low back pain, which seriously affects the quality of life and also brings heavy economic burden. However, the mechanisms leading to IDD and its therapeutic targets have not been fully elucidated. Oxidative stress refers to the imbalance between oxidation and antioxidant systems, between too many products of reactive oxygen species (ROS) and the insufficient scavenging function. Excessive ROS can damage cell lipids, nucleic acids and proteins, which has been proved to be related to the development of a variety of diseases. In recent years, an increasing number of studies have reported that oxidative stress is involved in the pathological process of IDD. Excessive ROS can accelerate the IDD process via inducing the pathological activities, such as inflammation, apoptosis, and senescence. In this review, we focused on pathophysiology and molecular mechanisms of oxidative stress-induced IDD. Moreover, the present review also summarized the possible ideas for the future therapy strategies of oxidative stress-related IDD.
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95
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Xia Y, Yang R, Hou Y, Wang H, Li Y, Zhu J, Fu C. Application of mesenchymal stem cell-derived exosomes from different sources in intervertebral disc degeneration. Front Bioeng Biotechnol 2022; 10:1019437. [PMID: 36277386 PMCID: PMC9585200 DOI: 10.3389/fbioe.2022.1019437] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 09/26/2022] [Indexed: 12/12/2022] Open
Abstract
Intervertebral disc degeneration (IVDD) is a main cause of lower back pain, leading to psychological and economic burdens to patients. Physical therapy only delays pain in patients but cannot eliminate the cause of IVDD. Surgery is required when the patient cannot tolerate pain or has severe neurological symptoms. Although surgical resection of IVD or decompression of the laminae eliminates the diseased segment, it damages adjacent normal IVD. There is also a risk of re-protrusion after IVD removal. Cell therapy has played a crucial role in the development of regenerative medicine. Cell transplantation promotes regeneration of degenerative tissue. However, owing to the lack of vascular structure in IVD, sufficient nutrients cannot be provided for transplanted mesenchymal stem cells (MSCs). In addition, dead cells release harmful substances that aggravate IVDD. Extracellular vesicles (EVs) have been extensively studied as an emerging therapeutic approach. EVs generated by paracrine MSCs retain the potential of MSCs and serve as carriers to deliver their contents to target cells to regulate target cell activity. Owing to their double-layered membrane structure, EVs have a low immunogenicity and no immune rejection. Therefore, EVs are considered an emerging therapeutic modality in IVDD. However, they are limited by mass production and low loading rates. In this review, the structure of IVD and advantages of EVs are introduced, and the application of MSC-EVs in IVDD is discussed. The current limitations of EVs and future applications are described.
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Affiliation(s)
- Yuanliang Xia
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Ruohan Yang
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Yulin Hou
- Department of Cardiology, Guangyuan Central Hospital, Guangyuan, China
| | - Hengyi Wang
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Yuehong Li
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Jianshu Zhu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Changfeng Fu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
- *Correspondence: Changfeng Fu,
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96
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Wu J, Chen Y, Liao Z, Liu H, Zhang S, Zhong D, Qiu X, Chen T, Su D, Ke X, Wan Y, Zhou T, Su P. Self-amplifying loop of NF-κB and periostin initiated by PIEZO1 accelerates mechano-induced senescence of nucleus pulposus cells and intervertebral disc degeneration. Mol Ther 2022; 30:3241-3256. [PMID: 35619555 PMCID: PMC9552911 DOI: 10.1016/j.ymthe.2022.05.021] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 05/05/2022] [Accepted: 05/21/2022] [Indexed: 11/21/2022] Open
Abstract
Abnormal mechanical load is a main risk factor of intervertebral disc degeneration (IDD), and cellular senescence is a pathological change in IDD. In addition, extracellular matrix (ECM) stiffness promotes human nucleus pulposus cells (hNPCs) senescence. However, the molecular mechanism underlying mechano-induced cellular senescence and IDD progression is not yet fully elucidated. First, we demonstrated that mechano-stress promoted hNPCs senescence via NF-κB signaling. Subsequently, we identified periostin as the main mechano-responsive molecule in hNPCs through unbiased sequencing, which was transcriptionally upregulated by NF-κB p65; moreover, secreted periostin by senescent hNPCs further promoted senescence and upregulated the catabolic process in hNPCs through activating NF-κB, forming a positive loop. Both Postn (encoding periostin) knockdown via siRNA and periostin inactivation via neutralizing antibodies alleviated IDD and NPCs senescence. Furthermore, we found that mechano-stress initiated the positive feedback of NF-κB and periostin via PIEZO1. PIEZO1 activation by Yoda1 induced severe IDD in rat tails without compression, and Postn knockdown alleviated the Yoda1-induced IDD in vivo. Here, we reported for the first time that self-amplifying loop of NF-κB and periostin initiated via PIEZO1 under mechano-stress accelerated NPCs senescence, leading to IDD. Furthermore, periostin neutralizing antibodies, which may serve as potential therapeutic agents for IDD, interrupted this loop.
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Affiliation(s)
- Jinna Wu
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan 2(nd) Road, Yuexiu District, Guangzhou 510080, China
| | - Yuyu Chen
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan 2(nd) Road, Yuexiu District, Guangzhou 510080, China
| | - Zhiheng Liao
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan 2(nd) Road, Yuexiu District, Guangzhou 510080, China
| | - Hengyu Liu
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan 2(nd) Road, Yuexiu District, Guangzhou 510080, China
| | - Shun Zhang
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan 2(nd) Road, Yuexiu District, Guangzhou 510080, China
| | - Dongmei Zhong
- Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Xianjian Qiu
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - Taiqiu Chen
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - Deying Su
- Guangdong Provincial Key Laboratory of Proteomics and State Key Laboratory of Organ Failure Research, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xiaona Ke
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan 2(nd) Road, Yuexiu District, Guangzhou 510080, China
| | - Yong Wan
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan 2(nd) Road, Yuexiu District, Guangzhou 510080, China
| | - Taifeng Zhou
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan 2(nd) Road, Yuexiu District, Guangzhou 510080, China.
| | - Peiqiang Su
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, No.58 Zhongshan 2(nd) Road, Yuexiu District, Guangzhou 510080, China.
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97
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Chen H, Zhou J, Zhang G, Luo Z, Li L, Kang X. Emerging role and therapeutic implication of mTOR signalling in intervertebral disc degeneration. Cell Prolif 2022; 56:e13338. [PMID: 36193577 PMCID: PMC9816935 DOI: 10.1111/cpr.13338] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 06/16/2022] [Accepted: 09/01/2022] [Indexed: 01/11/2023] Open
Abstract
Intervertebral disc degeneration (IDD), an important cause of chronic low back pain (LBP), is considered the pathological basis for various spinal degenerative diseases. A series of factors, including inflammatory response, oxidative stress, autophagy, abnormal mechanical stress, nutritional deficiency, and genetics, lead to reduced extracellular matrix (ECM) synthesis by intervertebral disc (IVD) cells and accelerate IDD progression. Mammalian target of rapamycin (mTOR) is an evolutionarily conserved serine/threonine kinase that plays a vital role in diverse degenerative diseases. Recent studies have shown that mTOR signalling is involved in the regulation of autophagy, oxidative stress, inflammatory responses, ECM homeostasis, cellular senescence, and apoptosis in IVD cells. Accordingly, we reviewed the mechanism of mTOR signalling in the pathogenesis of IDD to provide innovative ideas for future research and IDD treatment.
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Affiliation(s)
- Hai‐Wei Chen
- Department of OrthopaedicsLanzhou University Second HospitalLanzhouGansuPeople's Republic of China,The Second Clinical Medical CollegeLanzhou UniversityLanzhouGansuPeople's Republic of China
| | - Jian‐Wei Zhou
- Department of OrthopaedicsLanzhou University Second HospitalLanzhouGansuPeople's Republic of China,Key Laboratory of Orthopaedics Disease of Gansu ProvinceLanzhou University Second HospitalLanzhouGansu ProvincePeople's Republic of China
| | - Guang‐Zhi Zhang
- Department of OrthopaedicsLanzhou University Second HospitalLanzhouGansuPeople's Republic of China,The Second Clinical Medical CollegeLanzhou UniversityLanzhouGansuPeople's Republic of China
| | - Zhang‐Bin Luo
- Department of OrthopaedicsLanzhou University Second HospitalLanzhouGansuPeople's Republic of China,The Second Clinical Medical CollegeLanzhou UniversityLanzhouGansuPeople's Republic of China
| | - Lei Li
- Department of OrthopaedicsLanzhou University Second HospitalLanzhouGansuPeople's Republic of China,The Second Clinical Medical CollegeLanzhou UniversityLanzhouGansuPeople's Republic of China
| | - Xue‐Wen Kang
- Department of OrthopaedicsLanzhou University Second HospitalLanzhouGansuPeople's Republic of China,The Second Clinical Medical CollegeLanzhou UniversityLanzhouGansuPeople's Republic of China,Key Laboratory of Orthopaedics Disease of Gansu ProvinceLanzhou University Second HospitalLanzhouGansu ProvincePeople's Republic of China
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98
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The Nrf2 antioxidant defense system in intervertebral disc degeneration: Molecular insights. EXPERIMENTAL & MOLECULAR MEDICINE 2022; 54:1067-1075. [PMID: 35978054 PMCID: PMC9440120 DOI: 10.1038/s12276-022-00829-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 05/15/2022] [Accepted: 05/18/2022] [Indexed: 02/07/2023]
Abstract
Intervertebral disc degeneration (IDD) is a common degenerative musculoskeletal disorder and is recognized as a major contributor to discogenic lower back pain. However, the molecular mechanisms underlying IDD remain unclear, and therapeutic strategies for IDD are currently limited. Oxidative stress plays pivotal roles in the pathogenesis and progression of many age-related diseases in humans, including IDD. Nuclear factor E2-related factor 2 (Nrf2) is a master antioxidant transcription factor that protects cells against oxidative stress damage. Nrf2 is negatively modulated by Kelch-like ECH-associated protein 1 (Keap1) and exerts important effects on IDD progression. Accumulating evidence has revealed that Nrf2 can facilitate the transcription of downstream antioxidant genes in disc cells by binding to antioxidant response elements (AREs) in promoter regions, including heme oxygenase-1 (HO-1), glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), and NADPH quinone dehydrogenase 1 (NQO1). The Nrf2 antioxidant defense system regulates cell apoptosis, senescence, extracellular matrix (ECM) metabolism, the inflammatory response of the nucleus pulposus (NP), and calcification of the cartilaginous endplates (EP) in IDD. In this review, we aim to discuss the current knowledge on the roles of Nrf2 in IDD systematically. Insights into the activity of a protein that regulates gene expression and protects cells against oxidative stress could yield novel treatments for lower back pain. Intervertebral disc degeneration (IDD) is a common cause of lower back pain, but the molecular mechanisms underlying IDD are unclear, meaning treatment options are limited. Oxidative stress is implicated in IDD, and scientists have begun exploring the role of nuclear factor E2-related factor 2 (Nrf2), a master regulator of the body’s antioxidant responses, in regulating IDD progression. In a review of recent research, Weishi Li at Peking University Third Hospital, Beijing, China, and co-workers point out that boosting the activity of Nrf2-related signaling pathways alleviates oxidative stress in intervertebral disc cells. The researchers suggest that therapies based on non-coding RNAs may prove valuable in activating Nrf2 in IDD patients.
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99
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Grape Seed Proanthocyanidins Exert a Neuroprotective Effect by Regulating Microglial M1/M2 Polarisation in Rats with Spinal Cord Injury. Mediators Inflamm 2022; 2022:2579003. [PMID: 35966334 PMCID: PMC9371824 DOI: 10.1155/2022/2579003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/04/2022] [Accepted: 07/16/2022] [Indexed: 12/24/2022] Open
Abstract
Spinal cord injury (SCI) is a highly disabling disorder for which few effective treatments are available. Grape seed proanthocyanidins (GSPs) are polyphenolic compounds with various biological activities. In our preliminary experiment, GSP promoted functional recovery in rats with SCI, but the mechanism remains unclear. Therefore, we explored the protective effects of GSP on SCI and its possible underlying mechanisms. We found that GSP promoted locomotor recovery, reduced neuronal apoptosis, increased neuronal preservation, and regulated microglial polarisation in vivo. We also performed in vitro studies to verify the effects of GSP on neuronal protection and microglial polarisation and their potential mechanisms. We found that GSP regulated microglial polarisation and inhibited apoptosis in PC12 cells induced by M1-BV2 cells through the Toll-like receptor 4- (TLR4-) mediated nuclear factor kappa B (NF-κB) and phosphatidylinositol 3-kinase/serine threonine kinase (PI3K/AKT) signaling pathways. This suggests that GSP regulates microglial polarisation and prevents neuronal apoptosis, possibly by the TLR4-mediated NF-κB and PI3K/AKT signaling pathways.
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100
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Lv B, Gan W, Cheng Z, Wu J, Chen Y, Zhao K, Zhang Y. Current Insights Into the Maintenance of Structure and Function of Intervertebral Disc: A Review of the Regulatory Role of Growth and Differentiation Factor-5. Front Pharmacol 2022; 13:842525. [PMID: 35754493 PMCID: PMC9213660 DOI: 10.3389/fphar.2022.842525] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/08/2022] [Indexed: 11/29/2022] Open
Abstract
Intervertebral disc degeneration (IDD), characterized by conversion of genotypic and phenotypic, is a major etiology of low back pain and disability. In general, this process starts with alteration of metabolic homeostasis leading to ongoing inflammatory process, extracellular matrix degradation and fibrosis, diminished tissue hydration, and impaired structural and mechanical functionality. During the past decades, extensive studies have focused on elucidating the molecular mechanisms of degeneration and shed light on the protective roles of various factors that may have the ability to halt and even reverse the IDD. Mutations of GDF-5 are associated with several human and animal diseases that are characterized by skeletal deformity such as short digits and short limbs. Growth and differentiation factor-5 (GDF-5) has been shown to be a promise biological therapy for IDD. Substantial literature has revealed that GDF-5 can decelerate the progression of IDD on the molecular, cellular, and organ level by altering prolonged imbalance between anabolism and catabolism. GDF family members are the central signaling moleculars in homeostasis of IVD and upregulation of their gene promotes the expression of healthy nucleus pulposus (NP) cell marker genes. In addition, GDF signaling is able to induce mesenchymal stem cells (MSCs) to differentiate into NPCs and mobilize resident cell populations as chemotactic signals. This review will discuss the promising critical role of GDF-5 in maintenance of structure and function of IVDs, and its therapeutic role in IDD endogenous repair.
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Affiliation(s)
- Bin Lv
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weikang Gan
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhangrong Cheng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juntao Wu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuhang Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kangchen Zhao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yukun Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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