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Understanding the molecular biology of intervertebral disc degeneration and potential gene therapy strategies for regeneration: a review. Gene Ther 2018; 25:67-82. [DOI: 10.1038/s41434-018-0004-0] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 11/30/2017] [Accepted: 01/03/2018] [Indexed: 12/13/2022]
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202
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Thompson K, Moore S, Tang S, Wiet M, Purmessur D. The chondrodystrophic dog: A clinically relevant intermediate-sized animal model for the study of intervertebral disc-associated spinal pain. JOR Spine 2018; 1:e1011. [PMID: 29984354 PMCID: PMC6018624 DOI: 10.1002/jsp2.1011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 02/23/2018] [Accepted: 02/23/2018] [Indexed: 12/16/2022] Open
Abstract
Low back pain (LBP) is the leading cause of disability worldwide, with an estimated 80% of the American population suffering from a painful back condition at some point during their lives. The most common cause of LBP is intervertebral disc (IVD) degeneration (IVDD), a condition that can be difficult to treat, either surgically or medically, with current available therapies. Thus, understanding the pathological mechanisms of IVDD and developing novel treatments are critical for improving outcome and quality of life in people living with LBP. While experimental animal models provide valuable mechanistic insight, each model has limitations that complicate translation to the clinical setting. This review focuses on the chondrodystrophic canine clinical model of IVDD as a promising model to assess IVD-associated spinal pain and translational therapeutic strategies for LBP. The canine IVD, while smaller in size than human, goat, ovine, and bovine IVDs, is larger than most other small animal IVDD models and undergoes maturational changes similar to those of the human IVD. Furthermore, both dogs and humans develop painful IVDD as a spontaneous process, resulting in similar characteristic pathologies and clinical signs. Future exploration of the canine model as a model of IVD-associated spinal pain and biological treatments using the canine clinical model will further demonstrate its translational capabilities with the added ethical benefit of treating an existing veterinary patient population with IVDD.
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Affiliation(s)
- Kelly Thompson
- Department of Veterinary Clinical SciencesThe Ohio State UniversityColumbusOhio
| | - Sarah Moore
- Department of Veterinary Clinical SciencesThe Ohio State UniversityColumbusOhio
| | - Shirley Tang
- Department of Biomedical Engineering, College of EngineeringThe Ohio State UniversityColumbusOhio
| | - Matthew Wiet
- Department of Biomedical Engineering, College of EngineeringThe Ohio State UniversityColumbusOhio
| | - Devina Purmessur
- Department of Biomedical Engineering, College of EngineeringThe Ohio State UniversityColumbusOhio
- Department of Orthopedics, College of MedicineThe Ohio State UniversityColumbusOhio
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203
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Yeh CH, Chen D, Aghdasi B, Xiao L, Ding M, Jin L, Li X. Link protein N-terminal peptide and fullerol promote matrix production and decrease degradation enzymes in rabbit annulus cells. Connect Tissue Res 2018; 59:191-200. [PMID: 28509587 PMCID: PMC5690886 DOI: 10.1080/03008207.2017.1330333] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 05/09/2017] [Indexed: 02/03/2023]
Abstract
PURPOSE Intervertebral disc degeneration is a major cause of back pain. Novel therapies for prevention or reversal of disc degeneration are needed. It is desirable for potential therapies to target both inflammation and matrix degeneration. MATERIALS AND METHODS The combined regenerative potential of link protein N-terminal peptide (LN) and fullerol on annulus fibrosus (AF) cells was evaluated in a 3D culture model. RESULTS Interleukin-1α (IL-1α)-induced AF cell degeneration was counteracted by fullerol, LN, and fullerol + LN, with the latter having the greatest effect on matrix production as evaluated by real-time polymerase chain reaction and glycosaminoglycan assay. IL-1α-induced increases in pro-inflammatory mediators (interleukin-6 and cyclooxygenase-2) and matrix metalloproteinases (MMP-1, -2, -9, and -13) were also counteracted by fullerol and LN. CONCLUSION Our data demonstrate that LN and fullerol individually, and in combination, promote matrix production and have anti-inflammatory and anti-catabolic effects on AF cells.
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Affiliation(s)
- Ching-Hua Yeh
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA, USA
- Centre for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Dennis Chen
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA, USA
| | - Bayan Aghdasi
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA, USA
| | - Li Xiao
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA, USA
| | - Mengmeng Ding
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA, USA
| | - Li Jin
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA, USA
| | - Xudong Li
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, VA, USA
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204
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Miguélez-Rivera L, Pérez-Castrillo S, González-Fernández ML, Prieto-Fernández JG, López-González ME, García-Cosamalón J, Villar-Suárez V. Immunomodulation of mesenchymal stem cells in discogenic pain. Spine J 2018; 18:330-342. [PMID: 28939169 DOI: 10.1016/j.spinee.2017.09.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/09/2017] [Accepted: 09/11/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Back pain is a highly prevalent health problem in the world today and has a great economic impact on health-care budgets. Intervertebral disc (IVD) degeneration has been identified as a main cause of back pain. Inflammatory cytokines produced by macrophages or disc cells in an inflammatory environment play an important role in painful progressive degeneration of IVD. Mesenchymal stem cells (MSCs) have shown to have immunosuppressive and anti-inflammatory properties. Mesenchymal stem cells express a variety of chemokines and cytokines receptors having tropism to inflammation sites. PURPOSE This study aimed to develop an in vitro controlled and standardized model of inflammation and degeneration of IVD with rat cells and to evaluate the protective and immunomodulatory effect of conditioned medium (CM) from the culture of MSCs to improve the conditions presented in herniated disc and discogenic pain processes. STUDY DESIGN This is an experimental study. METHODS In this study, an in vitro model of inflammation and degeneration of IVD has been developed, as well as the effectiveness of CM from the culture of MSCs. RESULTS Conditioned medium from MSCs downregulated the expression of various proinflammatory cytokines produced in the pathogenesis of discogenic pain such as interleukin (IL)-1β, IL-6, IL-17, and tumor necrosis factor (TNF). CONCLUSION Mesenchymal stem cells represent a promising alternative strategy in the treatment of IVD degeneration inasmuch as there is currently no treatment which leads to a complete remission of long-term pain in the absence of drugs.
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Affiliation(s)
- Laura Miguélez-Rivera
- Department of Anatomy, Faculty of Veterinary Sciences, Campus de Vegazana s/n, University of León, 24071, Spain
| | - Saúl Pérez-Castrillo
- Department of Anatomy, Faculty of Veterinary Sciences, Campus de Vegazana s/n, University of León, 24071, Spain
| | | | - Julio Gabriel Prieto-Fernández
- Institute of Biomedicine (IBIOMED), Faculty of Veterinary Sciences, Campus de Vegazana s/n, Universidad de León, 24071, Spain
| | - María Elisa López-González
- Department of Anatomy, Faculty of Veterinary Sciences, Campus de Vegazana s/n, University of León, 24071, Spain
| | - José García-Cosamalón
- Institute of Biomedicine (IBIOMED), Faculty of Veterinary Sciences, Campus de Vegazana s/n, Universidad de León, 24071, Spain
| | - Vega Villar-Suárez
- Department of Anatomy, Faculty of Veterinary Sciences, Campus de Vegazana s/n, University of León, 24071, Spain; Institute of Biomedicine (IBIOMED), Faculty of Veterinary Sciences, Campus de Vegazana s/n, Universidad de León, 24071, Spain.
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205
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Sun X, Wang J, Liu X, Tao H, Jin W, Shen K. Degeneration of injured intervertebral discs affected by anterior longitudinal ligament injury in rabbits. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:595-603. [PMID: 31938145 PMCID: PMC6958012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 01/11/2018] [Indexed: 06/10/2023]
Abstract
Spinal trauma can cause simultaneous injury of intervertebral discs (IVD) and anterior longitudinal ligaments (ALL). Injury of IVD is an important factor causing intervertebral disc degeneration (IDD). However, the relationship between ALL injury and IDD has rarely been discussed. Therefore, the purpose of this study was to investigate the effects of ALL injury on degeneration of injured IVD. Thirty-two rabbits were randomly and evenly divided into four groups including sham group, Group A (simple IVD punctured), Group B (IVD punctured with half transverse injury of ALL), and Group C (IVD punctured with entirely transverse injury of ALL). Then, computed tomography, HE staining, intraoperative exploration, immunohistochemistry, and TUNEL staining were used in detecting the degenerative changes in corresponding IVD. At 2 weeks postoperatively, in response to the extent of ALL injury, the middle height of the punctured intervertebral space was reduced. The IVD structure was disorganized and the number of IVD cells was decreasing. The percentage of IL-1β- and TNF-α-immunopositive cells was increased and the percentage of TUNEL-positive IVD cells was also increased. There was a significant difference between Group C and the other groups in the results of immunohistochemistry and TUNEL staining (P<0.05). At 8 weeks postoperatively, the middle height of intervertebral space was significantly lower in Group C than in other groups (P<0.05). Intraoperative exploration found that there was obvious instability of intervertebral space in Group C. Compared with 2 weeks postoperation, the pathological changes were severe. The percentage of IL-1β- and TNF-α-immunopositive cells was decreased and the percentage of TUNEL-positive cells was increased in the corresponding groups. There was a significant difference between Group C and the other groups in the results of immunohistochemistry and TUNEL staining (P<0.05). These findings indicate that IVD injury companied with completed ALL injury might cause obvious spinal instability, which might correspond to severe IDD.
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Affiliation(s)
- Xin Sun
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineChina
| | - Jia Wang
- Department of Pathology, Shanghai Xin Hua Hospital, Shanghai Jiao Tong University School of MedicineChina
| | - Xingzhen Liu
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineChina
| | - Hairong Tao
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineChina
| | - Wenjie Jin
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineChina
| | - Kangping Shen
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineChina
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206
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Wang J, Sun W, Bond A, Xu C, Li K, Ren D, Song X, Tan F, Jiao K, Wang M. Patients with idiopathic endplate inflammation displayed aberrant Th17 responses resulting in proinflammatory monocyte activation. Exp Cell Res 2018; 363:33-38. [DOI: 10.1016/j.yexcr.2018.01.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 01/02/2018] [Accepted: 01/04/2018] [Indexed: 12/29/2022]
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207
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Huang SJ, Yan JQ, Luo H, Zhou LY, Luo JG. IL-33/ST2 signaling contributes to radicular pain by modulating MAPK and NF-κB activation and inflammatory mediator expression in the spinal cord in rat models of noncompressive lumber disk herniation. J Neuroinflammation 2018; 15:12. [PMID: 29329586 PMCID: PMC5766999 DOI: 10.1186/s12974-017-1021-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 12/05/2017] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Immune and inflammatory responses occurring in the spinal cord play a pivotal role in the progression of radicular pain caused by intervertebral disk herniation. Interleukin-33 (IL-33) orchestrates inflammatory responses in a wide range of inflammatory and autoimmune disorders of the nervous system. Thus, the purpose of this study is to investigate the expression of IL-33 and its receptor ST2 in the dorsal spinal cord and to elucidate whether the inhibition of spinal IL-33 expression significantly attenuates pain-related behaviors in rat models of noncompressive lumbar disc herniation. METHODS Lentiviral vectors encoding short hairpin RNAs that target IL-33 (LV-shIL-33) were constructed for gene silencing. Rat models of noncompressive lumber disk herniation were established, and the spines of rats were injected with LV-shIL-33 (5 or 10 μl) on the first day after the operation. Mechanical thresholds were evaluated during an observation period of 21 days. Moreover, the expression levels of spinal tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6), and cyclooxygenase 2 (COX-2) and the activation of the mitogen-activated protein kinases (MAPK) and nuclear factor-κB (NF-κB) pathways were evaluated to gain insight into the mechanisms related to the contribution of IL-33/ST2 signaling to radicular pain. RESULTS The application of nucleus pulposus (NP) to the dorsal root ganglion (DRG) induced an increase in IL-33 and ST2 expression in the spinal cord, mainly in the dorsal horn neurons, astrocytes, and oligodendrocytes. Spinally delivered LV-shIL-33 knocked down the expression of IL-33 and markedly attenuated mechanical allodynia. In addition, spinal administration of LV-shIL-33 reduced the overexpression of spinal IL-1β, TNF-α, and COX-2 and attenuated the activation of C-Jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK), and NF-κB/p65 but not p38. CONCLUSIONS This study indicates that spinal IL-33/ST2 signaling plays an important role in the development and progression of radicular pain in rat models of noncompressive lumber disk herniation. Thus, the inhibition of spinal IL-33 expression may provide a potential treatment to manage radicular pain caused by intervertebral disk herniation.
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Affiliation(s)
- Si-Jian Huang
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011 China
| | - Jian-Qin Yan
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan 410008 China
| | - Hui Luo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan 410008 China
| | - Lu-Yao Zhou
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan 410008 China
| | - Jian-Gang Luo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan 410008 China
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208
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Lee SM, Jiao LY, Jiang LB, Liu SH, Lee M, Wu W, Zhang J. Pterostilbene inhibits inflammation by promoting the nuclear translocation of Nrf2 in the rat nucleus pulposus. EUR J INFLAMM 2018. [DOI: 10.1177/1721727x18756536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Pterostilbene (PTE), a natural plant extract, has an anti-inflammatory effect; however, whether PTE could protect nucleus pulposus cells (NPCs) in the intervertebral disk from inflammation remains unclear. Primary NPCs isolated from Sprague-Dawley (SD) rats were cultured, and Cell Counting Kit-8 (CCK-8) analysis was used to test the cytotoxicity of PTE. The effect of PTE on interleukin-1β (IL-1β)-induced inflammation was analyzed using an enzyme-linked immunosorbent assay, real-time polymerase chain reaction (PCR), and a Griess test. Western blotting, immunofluorescence, and a nuclear factor erythroid 2-related factor 2 (Nrf2) small interfering RNA (siRNA) transfection were used to assess the involvement of Nrf2 in the anti-inflammatory mechanism of PTE on NPCs. The results of the CCK-8 analysis showed that PTE produced no cytotoxicity in NPCs at 20 μM for 24 h. PTE suppressed the production of nitric oxide (NO) and prostaglandin E2 (PGE2) and inhibited the messenger RNA (mRNA) expression of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) induced by IL-1β. PTE could promote the nuclear translocation of Nrf2 in NPCs. In addition, Nrf2 silence reversed the inhibitory effect of PTE on the production of NO and PGE2 and the expression of COX-2 and iNOS. These results indicate that PTE inhibits inflammation in the rat nucleus pulposus by promoting the nuclear translocation of Nrf2.
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Affiliation(s)
- Soo-Min Lee
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Li-Yan Jiao
- Affiliated Hospital of Hebei University of Engineering, Handan, China
| | - Li-Bo Jiang
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shu-Hao Liu
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Maka Lee
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wei Wu
- Department of Orthopedics, Ningbo Second Hospital, Ningbo, China
| | - Jian Zhang
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
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209
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Zhang H, Zhu T, Zhang L, Wu Q. Stromal cell‑derived factor‑1 induces matrix metalloproteinase expression in human endplate chondrocytes, cartilage endplate degradation in explant culture, and the amelioration of nucleus pulposus degeneration in vivo. Int J Mol Med 2017; 41:969-976. [PMID: 29207021 DOI: 10.3892/ijmm.2017.3278] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 11/13/2017] [Indexed: 11/05/2022] Open
Abstract
Intervertebral disc (IVD) degeneration is a strong etiological factor in chronic lower back pain. Stem cell migration toward the site of IVD degeneration for regeneration is restricted by avascularity and distance. Our previous study indicated that the expression of stromal cell‑derived factor‑1 (SDF‑1) and its receptor, C-X-C chemokine receptor type 4 (CXCR4) was upregulated in degenerated cartilage endplate (CEP) and nucleus pulposus (NP). In the present study, SDF‑1 increased CXCR4 mRNA and protein expression in human endplate chondrocytes in a dose‑dependent manner. The results of reverse transcription-quantitative polymerase chain reaction, western blotting and zymography indicated that SDF‑1 increased matrix metalloproteinase (MMP)‑1, ‑3 and ‑13 mRNA and protein expression in human endplate chondrocytes in a dose‑dependent manner. The results of zymography suggested that SDF‑1 also increased MMP‑2 and ‑9 protein expression in a dose‑dependent manner. The CXCR4‑specific chemical inhibitor AMD3100 significantly decreased the levels of MMP‑1, ‑2, ‑3, ‑9 and ‑13 expression. In a human cartilage explant culture model, SDF‑1 accelerated the degradation of extracellular matrix (ECM), and AMD3100 decreased cartilage cleavage. However, in a rat tail disc degeneration model, the injection of SDF‑1 into the NP resulted in the retention of dense areas of proteoglycan matrix and enhanced NP regeneration. These results suggest that SDF‑1, as an inflammatory cytokine, induces MMP expression in human endplate chondrocytes and that ECM remodeling in the CEP may be a favorable factor of endogenous stem cell homing into the NP for regeneration in vivo.
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Affiliation(s)
- Hua Zhang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Ting Zhu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Li Zhang
- Department of Clinical Laboratory, Hangzhou Red Cross Hospital, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310000, P.R. China
| | - Qionghua Wu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
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210
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Dong Y, Liu L, Shan X, Tang J, Xia B, Cheng X, Chen Y, Tao W. Pilose antler peptide attenuates LPS-induced inflammatory reaction. Int J Biol Macromol 2017; 108:272-276. [PMID: 29208559 DOI: 10.1016/j.ijbiomac.2017.11.176] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 11/26/2017] [Accepted: 11/29/2017] [Indexed: 11/15/2022]
Abstract
The present study was designed to study the effects of pilose antler peptide (PAP) on primary culture of nucleus pulposus cells in intervertebral disc. We demonstrated that PAP significantly inhibited lipopolysaccharides (LPS) induced over-production of inflammatory factors including interleukin-1β (IL-1β), tumor necrosis Factor-α (TNF-α) and interleukin-6 (IL-6) in nucleus pulposus cells. PAP also attenuated increase of malondialdehyde (MDA) and decrease of superoxide dismutase (SOD) induced by LPS challenge in a concentration-dependent manner. Moreover, the expression of the protein levels of mitogen-activated protein kinase (MAPK)/nuclear transcription factor-κB(NF-κB) were increased accompanying with the LPS challenge, which were significantly reversed after PAP treatment. Our results demonstrated the ability of PAP to antagonize LPS-mediated inflammation in primary culture of nucleus pulposus in intervertebral disc, suggesting a beneficial potential for its clinical application.
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Affiliation(s)
- Yu Dong
- Center for Translational Systems Biology and Neuroscience, School of Basic Biomedical Science, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Li Liu
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, China
| | - Xin Shan
- Center for Translational Systems Biology and Neuroscience, School of Basic Biomedical Science, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Juanjuan Tang
- Center for Translational Systems Biology and Neuroscience, School of Basic Biomedical Science, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Baomei Xia
- Faculty of Rehabilitation Science, Nanjing Normal University of Special Education, Nanjing, 210023, China
| | - Xiaolan Cheng
- Laboratory of Cellular and Molecular Biology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Yanyan Chen
- Center for Translational Systems Biology and Neuroscience, School of Basic Biomedical Science, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Weiwei Tao
- Center for Translational Systems Biology and Neuroscience, School of Basic Biomedical Science, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Henry N, Clouet J, Le Bideau J, Le Visage C, Guicheux J. Innovative strategies for intervertebral disc regenerative medicine: From cell therapies to multiscale delivery systems. Biotechnol Adv 2017; 36:281-294. [PMID: 29199133 DOI: 10.1016/j.biotechadv.2017.11.009] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 11/17/2017] [Accepted: 11/28/2017] [Indexed: 12/14/2022]
Abstract
As our understanding of the physiopathology of intervertebral disc (IVD) degeneration has improved, novel therapeutic strategies have emerged, based on the local injection of cells, bioactive molecules, and nucleic acids. However, with regard to the harsh environment constituted by degenerated IVDs, protecting biologics from in situ degradation while allowing their long-term delivery is a major challenge. Yet, the design of the optimal approach for IVD regeneration is still under debate and only a few papers provide a critical assessment of IVD-specific carriers for local and sustained delivery of biologics. In this review, we highlight the IVD-relevant polymers as well as their design as macro-, micro-, and nano-sized particles to promote endogenous repair. Finally, we illustrate how multiscale systems, combining in situ-forming hydrogels with ready-to-use particles, might drive IVD regenerative medicine strategies toward innovation.
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Affiliation(s)
- Nina Henry
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France; Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, 44322 Nantes, Cedex 3, France; Université de Nantes, UFR Odontologie, Nantes F-44042, France
| | - Johann Clouet
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France; Université de Nantes, UFR Odontologie, Nantes F-44042, France; CHU Nantes, Pharmacie Centrale, PHU 11, Nantes, France; Université de Nantes, UFR Sciences Biologiques et Pharmaceutiques, Nantes, France
| | - Jean Le Bideau
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, 44322 Nantes, Cedex 3, France
| | - Catherine Le Visage
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France; Université de Nantes, UFR Odontologie, Nantes F-44042, France.
| | - Jérôme Guicheux
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France; Université de Nantes, UFR Odontologie, Nantes F-44042, France; CHU Nantes, PHU 4 OTONN, Nantes, France.
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212
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Matrisome Profiling During Intervertebral Disc Development And Ageing. Sci Rep 2017; 7:11629. [PMID: 28912585 PMCID: PMC5599645 DOI: 10.1038/s41598-017-11960-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 09/01/2017] [Indexed: 12/19/2022] Open
Abstract
Intervertebral disc (IVD) degeneration is often the cause of low back pain. Degeneration occurs with age and is accompanied by extracellular matrix (ECM) depletion, culminating in nucleus pulpous (NP) extrusion and IVD destruction. The changes that occur in the disc with age have been under investigation. However, a thorough study of ECM profiling is needed, to better understand IVD development and age-associated degeneration. As so, iTRAQ LC-MS/MS analysis of foetus, young and old bovine NPs, was performed to define the NP matrisome. The enrichment of Collagen XII and XIV in foetus, Fibronectin and Prolargin in elder NPs and Collagen XI in young ones was independently validated. This study provides the first matrisome database of healthy discs during development and ageing, which is key to determine the pathways and processes that maintain disc homeostasis. The factors identified may help to explain age-associated IVD degeneration or constitute putative effectors for disc regeneration.
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213
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Lin H, Zhang W, Zhou T, Li W, Chen Z, Ji C, Zhang C, He F. Mechanism of microRNA-21 regulating IL-6 inflammatory response and cell autophagy in intervertebral disc degeneration. Exp Ther Med 2017; 14:1441-1444. [PMID: 28810608 PMCID: PMC5526105 DOI: 10.3892/etm.2017.4637] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/26/2017] [Indexed: 01/22/2023] Open
Abstract
This study investigated the mechanism of microRNA-21 in regulating IL-6 inflammatory response and cell autophagy in intervertebral disc degeneration. A total of 10 patients with lumbar disc herniation accompanied by nerve root pain (observation group) and 10 patients with lumbar burst fractures (control group) were selected. The nucleus pulposus tissues of the lesion were obtained during operation for cell culture. Real-time quantitative polymerase chain reaction (PCR) was used to detect the expression of microRNA-21. The ELISA method was used to detect the levels of IL-6, and type II collagen (Col II). Aggrecan and western blotting was used to detect autophagy-related gene 7 (ATG7) and microtubule-associated protein 1 light chain 3 (LC3)-II/-I. As a result, the levels of microRNA-21 and IL-6 in the observation group were significantly higher than those in the control group, but the levels of Col II and aggrecan were significantly lower than those in the control group. The differences were statistically significant (P<0.05). The levels of ATG7 and LC3-II/-I in the observation group were significantly decreased (P<0.05). In conclusion, the expression of microRNA-21 is abnormally high in the nerve root pain of the lumbar intervertebral disc, which can increase the IL-6 inflammatory response and reduce the capacity of cell autophagy.
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Affiliation(s)
- Hao Lin
- Clinical College of Maanshan, Anhui Medical University, Maanshan, Anhui 243000, P.R. China
| | - Wenzhi Zhang
- Department of Orthopaedics, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230000, P.R. China
| | - Tao Zhou
- Clinical College of Maanshan, Anhui Medical University, Maanshan, Anhui 243000, P.R. China
| | - Wansu Li
- Clinical College of Maanshan, Anhui Medical University, Maanshan, Anhui 243000, P.R. China
| | - Ziao Chen
- Clinical College of Maanshan, Anhui Medical University, Maanshan, Anhui 243000, P.R. China
| | - Chaochao Ji
- Clinical College of Maanshan, Anhui Medical University, Maanshan, Anhui 243000, P.R. China
| | - Chao Zhang
- Clinical College of Maanshan, Anhui Medical University, Maanshan, Anhui 243000, P.R. China
| | - Fang He
- Clinical College of Maanshan, Anhui Medical University, Maanshan, Anhui 243000, P.R. China
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Zhou T, Lin H, Cheng Z, Ji C, Zhang C, Tian J. Mechanism of microRNA-146a-mediated IL-6/STAT3 signaling in lumbar intervertebral disc degeneration. Exp Ther Med 2017; 14:1131-1135. [PMID: 28810568 PMCID: PMC5525655 DOI: 10.3892/etm.2017.4611] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 05/30/2017] [Indexed: 11/12/2022] Open
Abstract
The aim of the study was to investigate the mechanism of microRNA (miR)-146a-mediated activation of interleukin-6/signal transducer and activator of transcription 3 (IL-6/STAT3) in lumbar intervertebral disc degeneration. To obtain intervertebral tissue, we recruited 5 patients with lumbar intervertebral disc herniation (experimental group) and 5 patients with lumbar burst fracture (control group). Nucleus pulposus tissue was extracted by surgery and cultured. miR-146a empty vector, mimic, and inhibitor were transfected into the two groups of cells for 24 h and the levels of IL-6, type II collagen (Col II), aggrecan, STAT3, matrix metalloproteinase (MMP)-3, and a disintegrin and metalloproteinase with thrombospondin type I motifs (ADAMTS) were detected. We found no differences in the levels of IL-6, Col II, aggrecan, STAT3, MMP-3, and ADAMTS before and after treatment in the control group. However, the levels of miR-146a, IL-6, STAT3, MMP-3, and ADAMTS were significantly elevated, whereas Col II and aggrecan levels were lower in the experimental group before treatment. The levels of IL-6, STAT3, MMP-3, and ADAMTS were elevated after treatment with miR-146a mimic when compared with the miR-146a empty vector in the experimental group, and Col II and aggrecan levels were decreased. However, the cells treated with miR-146a inhibitor had the opposite result. Thus, the IL-6/STAT3 signaling pathway can be mediated by a high expression of miR-146a to regulate the occurrence of lumbar intervertebral disc degeneration.
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Affiliation(s)
- Tao Zhou
- Clinical Medical College, Shanghai General Hospital of Nanjing Medical University and Ma'anshan People's Hospital, Anhui 243000, P.R. China
| | - Hao Lin
- Medical University of Anhui, Hefei, Anhui 230000, P.R. China
| | - Ziao Cheng
- Medical University of Anhui, Hefei, Anhui 230000, P.R. China
| | - Chaochao Ji
- Medical University of Anhui, Hefei, Anhui 230000, P.R. China
| | - Chao Zhang
- Ma'anshan Clinical College of Medical University of Anhui, Hefei, Anhui 243000, P.R. China
| | - Jiwei Tian
- Clinical Medical College, Shanghai General Hospital of Nanjing Medical University, Hefei, Anhui 243000, P.R. China
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215
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Liu CC, Zhang XS, Ruan YT, Huang ZX, Zhang SB, Liu M, Luo HJ, Wu SL, Ma C. Accumulation of methylglyoxal increases the advanced glycation end-product levels in DRG and contributes to lumbar disk herniation-induced persistent pain. J Neurophysiol 2017; 118:1321-1328. [PMID: 28615337 PMCID: PMC5558033 DOI: 10.1152/jn.00745.2016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 05/31/2017] [Accepted: 06/05/2017] [Indexed: 02/02/2023] Open
Abstract
Lumbar disk herniation (LDH) with discogenic low back pain and sciatica is a common and complicated musculoskeletal disorder. The underlying mechanisms are poorly understood, and there are no effective therapies for LDH-induced pain. In the present study, we found that the patients who suffered from LDH-induced pain had elevated plasma methylglyoxal (MG) levels. In rats, implantation of autologous nucleus pulposus (NP) to the left lumbar 5 spinal nerve root, which mimicked LDH, induced mechanical allodynia, increased MG level in plasma and dorsal root ganglion (DRG), and enhanced the excitability of small DRG neurons (<30 μm in diameter). Intrathecal injection of MG also induced mechanical allodynia, and its application to DRG neurons ex vivo increased the number of action potentials evoked by depolarizing current pulses. Furthermore, inhibition of MG accumulation by aminoguanidine attenuated the enhanced excitability of small DRG neurons and the mechanical allodynia induced by NP implantation. In addition, NP implantation increased levels of advanced glycation end products (AGEs) in DRG, and intrathecal injection of MG-derived AGEs induced the mechanical allodynia and DRG neuronal hyperactivity. Intrathecal injection of MG also significantly increased the expression of AGEs in DRG. Importantly, scavenging of MG by aminoguanidine also attenuated the increase in AGEs induced by NP implantation. These results suggested that LDH-induced MG accumulation contributed to persistent pain by increasing AGE levels. Thus generation of AGEs from MG may represent a target for treatment of LDH-induced pain.NEW & NOTEWORTHY Our study demonstrates that methylglyoxal accumulation via increasing advanced glycation end-product levels in dorsal root ganglion contributes to the persistent pain induced by lumbar disk herniation, which proposed potential targets for the treatment of lumbar disk herniation-induced persistent pain.
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Affiliation(s)
- Cui-Cui Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; and
| | - Xin-Sheng Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; and
| | - Yu-Ting Ruan
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; and
| | - Zhu-Xi Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; and
| | - Su-Bo Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; and
| | - Meng Liu
- Zhongshan Medical School, Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-Sen University, Guangzhou, China
| | - Hai-Jie Luo
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; and
| | - Shao-Ling Wu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; and
| | - Chao Ma
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; and
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Armbrecht G, Felsenberg D, Ganswindt M, Lunt M, Kaptoge SK, Abendroth K, Aroso Dias A, Bhalla AK, Cannata Andia J, Dequeker J, Eastell R, Hoszowski K, Lyritis G, Masaryk P, van Meurs J, Miazgowski T, Nuti R, Poór G, Redlund-Johnell I, Reid DM, Schatz H, Todd CJ, Woolf AD, Rivadeneira F, Javaid MK, Cooper C, Silman AJ, O'Neill TW, Reeve J. Degenerative inter-vertebral disc disease osteochondrosis intervertebralis in Europe: prevalence, geographic variation and radiological correlates in men and women aged 50 and over. Rheumatology (Oxford) 2017; 56:1189-1199. [PMID: 28398504 PMCID: PMC5582627 DOI: 10.1093/rheumatology/kex040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Indexed: 11/14/2022] Open
Abstract
Objectives To assess the prevalences across Europe of radiological indices of degenerative inter-vertebral disc disease (DDD); and to quantify their associations with, age, sex, physical anthropometry, areal BMD (aBMD) and change in aBMD with time. Methods In the population-based European Prospective Osteoporosis Study, 27 age-stratified samples of men and women from across the continent aged 50+ years had standardized lateral radiographs of the lumbar and thoracic spine to evaluate the severity of DDD, using the Kellgren-Lawrence (KL) scale. Measurements of anterior, mid-body and posterior vertebral heights on all assessed vertebrae from T4 to L4 were used to generate indices of end-plate curvature. Results Images from 10 132 participants (56% female, mean age 63.9 years) passed quality checks. Overall, 47% of men and women had DDD grade 3 or more in the lumbar spine and 36% in both thoracic and lumbar spine. Risk ratios for DDD grades 3 and 4, adjusted for age and anthropometric determinants, varied across a three-fold range between centres, yet prevalences were highly correlated in men and women. DDD was associated with flattened, non-ovoid inter-vertebral disc spaces. KL grade 4 and loss of inter-vertebral disc space were associated with higher spine aBMD. Conclusion KL grades 3 and 4 are often used clinically to categorize radiological DDD. Highly variable European prevalences of radiologically defined DDD grades 3+ along with the large effects of age may have growing and geographically unequal health and economic impacts as the population ages. These data encourage further studies of potential genetic and environmental causes.
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Affiliation(s)
- Gabriele Armbrecht
- Department of Radiology and Nuclear Medicine, Free University, Berlin, Germany
| | - Dieter Felsenberg
- Department of Radiology and Nuclear Medicine, Free University, Berlin, Germany
| | - Melanie Ganswindt
- Department of Radiology and Nuclear Medicine, Free University, Berlin, Germany
| | - Mark Lunt
- NIHR Musculoskeletal Biomedical Research Unit, Central Manchester University Hospitals NHS Foundation Trust, & Arthritis Research UK Centre for Epidemiology, Manchester, University of Manchester
| | - Stephen K Kaptoge
- Department of Public Health and Primary Care, Strangeways Research Laboratory, Cambridge, UK
| | | | | | - Ashok K Bhalla
- Rheumatology, Royal National Hospital for Rheumatic Diseases, Bath, UK
| | | | - Jan Dequeker
- Rheumatology, University Hospital, Leuven, Belgium
| | - Richard Eastell
- Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK
| | | | - George Lyritis
- Laboratory for the Research of Musculoskeletal System, University of Athens, Athens, Greece
| | - Pavol Masaryk
- Rheumatology, Institute of Rheumatic Diseases, Piestany, Slovakia
| | - Joyce van Meurs
- Department of Epidemiology and Department of Internal Medicine, Erasmus University, Rotterdam, Netherlands
| | - Tomasz Miazgowski
- Department of Hypertension and Internal Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Ranuccio Nuti
- Institute of Clinical Medicine, University of Siena, Siena, Italy
| | - Gyula Poór
- 1st Department of Rheumatology and Metabolic Osteology, National Institute of Rheumatology and Physiotherapy, Budapest, Hungary
| | | | - David M Reid
- School of Medicine, Medical Science and Nutrition, University of Aberdeen, Aberdeen, UK
| | - Helmut Schatz
- Rheumatology, Med Klinik & Polyklinik, Bochum, Germany
| | - Christopher J Todd
- School of Health Sciences, The University of Manchester, Oxford Road, Manchester
| | - Anthony D Woolf
- Institute of Health Care Research, Peninsula College of Medicine and Dentistry, Universities of Exeter and Plymouth, Royal Cornwall Hospital, Truro
| | - Fernando Rivadeneira
- Department of Epidemiology and Department of Internal Medicine, Erasmus University, Rotterdam, Netherlands
| | - Muhammad K Javaid
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, NIHR Musculo-skeletal Biomedical Research Unit, Botnar Research Centre, Oxford, UK
| | - Cyrus Cooper
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, NIHR Musculo-skeletal Biomedical Research Unit, Botnar Research Centre, Oxford, UK
| | - Alan J Silman
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, NIHR Musculo-skeletal Biomedical Research Unit, Botnar Research Centre, Oxford, UK
| | - Terence W O'Neill
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, NIHR Musculo-skeletal Biomedical Research Unit, Botnar Research Centre, Oxford, UK
| | - Jonathan Reeve
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, NIHR Musculo-skeletal Biomedical Research Unit, Botnar Research Centre, Oxford, UK
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217
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Lim TKY, Anderson KM, Hari P, Di Falco M, Reihsen TE, Wilcox GL, Belani KG, LaBoissiere S, Pinto MR, Beebe DS, Kehl LJ, Stone LS. Evidence for a Role of Nerve Injury in Painful Intervertebral Disc Degeneration: A Cross-Sectional Proteomic Analysis of Human Cerebrospinal Fluid. THE JOURNAL OF PAIN 2017; 18:1253-1269. [PMID: 28652204 DOI: 10.1016/j.jpain.2017.06.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 06/08/2017] [Accepted: 06/08/2017] [Indexed: 12/18/2022]
Abstract
Intervertebral disc degeneration (DD) is a cause of low back pain (LBP) in some individuals. However, although >30% of adults have DD, LBP only develops in a subset of individuals. To gain insight into the mechanisms underlying nonpainful versus painful DD, human cerebrospinal fluid (CSF) was examined using differential expression shotgun proteomic techniques comparing healthy control participants, subjects with nonpainful DD, and patients with painful DD scheduled for spinal fusion surgery. Eighty-eight proteins were detected, 27 of which were differentially expressed. Proteins associated with DD tended to be related to inflammation (eg, cystatin C) regardless of pain status. In contrast, most differentially expressed proteins in DD-associated chronic LBP patients were linked to nerve injury (eg, hemopexin). Cystatin C and hemopexin were selected for further examination using enzyme-linked immunosorbent assay in a larger cohort. While cystatin C correlated with DD severity but not pain or disability, hemopexin correlated with pain intensity, physical disability, and DD severity. This study shows that CSF can be used to study mechanisms underlying painful DD in humans, and suggests that while painful DD is associated with nerve injury, inflammation itself is not sufficient to develop LBP. PERSPECTIVE CSF was examined for differential protein expression in healthy control participants, pain-free adults with asymptomatic intervertebral DD, and LBP patients with painful intervertebral DD. While DD was related to inflammation regardless of pain status, painful degeneration was associated with markers linked to nerve injury.
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Affiliation(s)
- Tony K Y Lim
- Integrated Program in Neuroscience, McGill University, Montreal, Quebec, Canada; Alan Edwards Centre for Research on Pain, McGill University, Montreal, Quebec, Canada; Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada; Department of Neurology and Neurosurgery, Montreal, McGill University, Quebec, Canada
| | - Kathleen M Anderson
- Program in Physical Therapy, Department of Physical Medicine and Rehabilitation, University of Minnesota, Minneapolis, Minnesota
| | - Pawan Hari
- Department of Epidemiology, University of Minnesota, Minneapolis, Minnesota
| | - Marcos Di Falco
- Genome Quebec, McGill University Innovation Centre, Montreal, Quebec, Canada
| | - Troy E Reihsen
- Department of Anesthesiology, University of Minnesota, Minneapolis, Minnesota
| | - George L Wilcox
- Department of Anesthesiology, University of Minnesota, Minneapolis, Minnesota; Department of Neuroscience, University of Minnesota, Minneapolis, Minnesota
| | - Kumar G Belani
- Department of Anesthesiology, University of Minnesota, Minneapolis, Minnesota
| | - Sylvie LaBoissiere
- Genome Quebec, McGill University Innovation Centre, Montreal, Quebec, Canada
| | | | - David S Beebe
- Department of Anesthesiology, University of Minnesota, Minneapolis, Minnesota
| | - Lois J Kehl
- Department of Anesthesiology, University of Minnesota, Minneapolis, Minnesota; Minnesota Head & Neck Pain Clinic, St. Paul, Minnesota
| | - Laura S Stone
- Integrated Program in Neuroscience, McGill University, Montreal, Quebec, Canada; Alan Edwards Centre for Research on Pain, McGill University, Montreal, Quebec, Canada; Faculty of Dentistry, McGill University, Montreal, Quebec, Canada; Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada.
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218
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Srivastava A, Isa ILM, Rooney P, Pandit A. Bioengineered three-dimensional diseased intervertebral disc model revealed inflammatory crosstalk. Biomaterials 2017; 123:127-141. [DOI: 10.1016/j.biomaterials.2017.01.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 01/11/2017] [Accepted: 01/28/2017] [Indexed: 12/29/2022]
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219
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Wang C, Yu X, Yan Y, Yang W, Zhang S, Xiang Y, Zhang J, Wang W. Tumor necrosis factor-α: a key contributor to intervertebral disc degeneration. Acta Biochim Biophys Sin (Shanghai) 2017; 49:1-13. [PMID: 27864283 DOI: 10.1093/abbs/gmw112] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/13/2016] [Indexed: 12/11/2022] Open
Abstract
Intervertebral disc (IVD) degeneration (IDD) is the most common cause leading to low back pain (LBP), which is a highly prevalent, costly, and crippling condition worldwide. Current treatments for IDD are limited to treat the symptoms and do not target the pathophysiology. Tumor necrosis factor-α (TNF-α) is one of the most potent pro-inflammatory cytokines and signals through its receptors TNFR1 and TNFR2. TNF-α is highly expressed in degenerative IVD tissues, and it is deeply involved in multiple pathological processes of disc degeneration, including matrix destruction, inflammatory responses, apoptosis, autophagy, and cell proliferation. Importantly, anti-TNF-α therapy has shown promise for mitigating disc degeneration and relieving LBP. In this review, following a brief description of TNF-α signal transduction, we mainly focus on the expression pattern and roles of TNF-α in IDD, and summarize the emerging progress regarding its inhibition as a promising biological therapeutic approach to disc degeneration and associated LBP. A better understanding will help to develop novel TNF-α-centered therapeutic interventions for degenerative disc disease.
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Affiliation(s)
- Cheng Wang
- Department of Spine Surgery, The First Affiliated Hospital, University of South China, Hengyang 421001, China
| | - Xiaohua Yu
- Medical Research Center, University of South China, Hengyang 421001, China
| | - Yiguo Yan
- Department of Spine Surgery, The First Affiliated Hospital, University of South China, Hengyang 421001, China
| | - Wei Yang
- Department of Hand and Micro-surgery, The First Affiliated Hospital, University of South China, Hengyang 421001, China
| | - Shujun Zhang
- Department of Spine Surgery, The First Affiliated Hospital, University of South China, Hengyang 421001, China
| | - Yongxiao Xiang
- Department of Hand and Micro-surgery, The First Affiliated Hospital, University of South China, Hengyang 421001, China
| | - Jian Zhang
- Department of Hand and Micro-surgery, The First Affiliated Hospital, University of South China, Hengyang 421001, China
| | - Wenjun Wang
- Department of Spine Surgery, The First Affiliated Hospital, University of South China, Hengyang 421001, China
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220
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Huang Y, Feng G, Liu L, Li T, Liu H, Song Y. [Research progress of microRNA and its non-viral vector in intervertebral disc degeneration]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2017; 31:116-121. [PMID: 29798640 PMCID: PMC9548034 DOI: 10.7507/1002-1892.201609092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 12/04/2016] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To summarize the research progress of microRNA (miRNA) and its non-viral vector in intervertebral disc degeneration (IDD) and to investigate the potential of non-viral vector delivery of miRNA in clinical application. METHODS The related literature about the role of miRNA in IDD and its non-viral delivery system was reviewed and analyzed. RESULTS MiRNA can regulate the related gene expression level and further participate in the pathophysiologic process in degenerated intervertebral disc, miRNA delivered by various non-viral vectors has obtained an ideal effect in some diseases. CONCLUSION MiRNA plays a great role in the cellular and molecular mechanisms of IDD, as a safe and effective strategy for gene therapy, non-viral vector provides new possibilities for IDD treated with miRNA.
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Affiliation(s)
- Yong Huang
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Ganjun Feng
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041,
| | - Limin Liu
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Tao Li
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Hao Liu
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Yueming Song
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041,
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Cunha C, Almeida CR, Almeida MI, Silva AM, Molinos M, Lamas S, Pereira CL, Teixeira GQ, Monteiro AT, Santos SG, Gonçalves RM, Barbosa MA. Systemic Delivery of Bone Marrow Mesenchymal Stem Cells for In Situ Intervertebral Disc Regeneration. Stem Cells Transl Med 2016; 6:1029-1039. [PMID: 28297581 PMCID: PMC5442789 DOI: 10.5966/sctm.2016-0033] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 09/01/2016] [Indexed: 12/31/2022] Open
Abstract
Cell therapies for intervertebral disc (IVD) regeneration presently rely on transplantation of IVD cells or stem cells directly to the lesion site. Still, the harsh IVD environment, with low irrigation and high mechanical stress, challenges cell administration and survival. In this study, we addressed systemic transplantation of allogeneic bone marrow mesenchymal stem cells (MSCs) intravenously into a rat IVD lesion model, exploring tissue regeneration via cell signaling to the lesion site. MSC transplantation was performed 24 hours after injury, in parallel with dermal fibroblasts as a control; 2 weeks after transplantation, animals were killed. Disc height index and histological grading score indicated less degeneration for the MSC‐transplanted group, with no significant changes in extracellular matrix composition. Remarkably, MSC transplantation resulted in local downregulation of the hypoxia responsive GLUT‐1 and in significantly less herniation, with higher amounts of Pax5+ B lymphocytes and no alterations in CD68+ macrophages within the hernia. The systemic immune response was analyzed in the blood, draining lymph nodes, and spleen by flow cytometry and in the plasma by cytokine array. Results suggest an immunoregulatory effect in the MSC‐transplanted animals compared with control groups, with an increase in MHC class II+ and CD4+ cells, and also upregulation of the cytokines IL‐2, IL‐4, IL‐6, and IL‐10, and downregulation of the cytokines IL‐13 and TNF‐α. Overall, our results indicate a beneficial effect of systemically transplanted MSCs on in situ IVD regeneration and highlight the complex interplay between stromal cells and cells of the immune system in achieving successful tissue regeneration. Stem Cells Translational Medicine2017;6:1029–1039
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Affiliation(s)
- Carla Cunha
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - Catarina R. Almeida
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- Department of Medical Sciences and Institute for Biomedicine, University of Aveiro, Aveiro, Portugal
| | - Maria Inês Almeida
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - Andreia M. Silva
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS‐Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Maria Molinos
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS‐Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Sofia Lamas
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IBMC‐Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Catarina L. Pereira
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS‐Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Graciosa Q. Teixeira
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS‐Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - António T. Monteiro
- Research Centre on Biodiversity and Genetic Resources, CIBIO‐InBIO Associate Laboratory, Vairão, Portugal
| | - Susana G. Santos
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - Raquel M. Gonçalves
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - Mário A. Barbosa
- i3S‐Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB‐Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS‐Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
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Li N, Whitaker C, Xu Z, Heggeness M, Yang SY. Therapeutic effects of naringin on degenerative human nucleus pulposus cells for discogenic low back pain. Spine J 2016; 16:1231-1237. [PMID: 27208552 DOI: 10.1016/j.spinee.2016.05.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 04/08/2016] [Accepted: 05/17/2016] [Indexed: 02/03/2023]
Abstract
BACKGROUND Over half the population of the world will suffer from moderate or severe low back pain (LBP) during their life span. Studies have shown that naringin, a major flavonoid in grapefruit and an active compound extracted from a Chinese herbal medicine (Rhizoma Drynariae) possesses many pharmacological effects. PURPOSE The aim of this study was to evaluate the influence of naringin on the growth of degenerative human nucleus pulposus (NP) cells, and its repair effects on protein and gene expressions of the cells. STUDY DESIGN/SETTING This was an in vitro investigation of the human NP cells isolated from degenerated intervertebral discs that were interacted with various concentrated of naringin. METHOD This study was exempted by the institutional Human Subjects Committee-2, University of Kansas School of Medicine-Wichita. Degenerative human NP cells were isolated from intervertebral discs of patients with discogenic LBP and cultured at 37°C with 5% CO2. The proliferation of NP cells was determined following treatment with various concentrations of naringin. The protein expressions of tumor necrosis factor-α (TNF-α) and Bone morphogenetic protein 2 (BMP-2) were tested using enzyme-linked immunosorbent assay. Aggrecan and type II collagen levels were measured by immunohistological staining. Further examination of the gene expression of aggrecan, Sox6, and MMP3 was performed after intervention with naringin for 3 days. RESULTS The human NP cells were successfully propagated in culture and stained positive with toluidine blue staining. Naringin effectively enhanced the cell proliferation at an optimal concentration of 20 µg/mL. Naringin treatment resulted in significant inhibition of TNF-α, but elevated protein expressions of BMP-2, collagen II, and aggrecan. Naringin also increased disc matrix gene activity including aggrecan and Sox6, and decreased the gene expression of MMP3. CONCLUSION Naringin effectively promotes the proliferation of degenerative human NP cells and improves the recuperation of the cells from degeneration by increasing expression of aggrecan, BMP-2, and Sox6 while inhibiting the expression of TNF-α and MMP3. This study suggests that naringin may represent an alternative therapeutic agent for disc degeneration.
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Affiliation(s)
- Nianhu Li
- Department of Orthopedics, University of Kansas School of Medicine-Wichita, 929 N Saint Francis St, Wichita, KS, USA; Department of Orthopaedic Surgery, Affiliated Hospital to Shandong University of Traditional Chinese Medicine, 42 Wenhua West Road, Jinan, China
| | - Camden Whitaker
- Department of Orthopedics, University of Kansas School of Medicine-Wichita, 929 N Saint Francis St, Wichita, KS, USA
| | - Zhanwang Xu
- Department of Orthopaedic Surgery, Affiliated Hospital to Shandong University of Traditional Chinese Medicine, 42 Wenhua West Road, Jinan, China
| | - Michael Heggeness
- Department of Orthopedics, University of Kansas School of Medicine-Wichita, 929 N Saint Francis St, Wichita, KS, USA; Robert J. Dole Veterans Administration Hospital Center, 5500 E. Kellogg, Wichita, KS, USA
| | - Shang-You Yang
- Department of Orthopedics, University of Kansas School of Medicine-Wichita, 929 N Saint Francis St, Wichita, KS, USA; Department of Biological Sciences, Wichita State University, 1845 Fairmount Street, Wichita, KS, USA.
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Teixeira GQ, Leite Pereira C, Castro F, Ferreira JR, Gomez-Lazaro M, Aguiar P, Barbosa MA, Neidlinger-Wilke C, Goncalves RM. Anti-inflammatory Chitosan/Poly-γ-glutamic acid nanoparticles control inflammation while remodeling extracellular matrix in degenerated intervertebral disc. Acta Biomater 2016; 42:168-179. [PMID: 27321188 DOI: 10.1016/j.actbio.2016.06.013] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 05/27/2016] [Accepted: 06/09/2016] [Indexed: 01/07/2023]
Abstract
UNLABELLED Intervertebral disc (IVD) degeneration is one of the most common causes of low back pain (LBP), the leading disorder in terms of years lived with disability. Inflammation can play a role in LPB, while impairs IVD regeneration. In spite of this, different inflammatory targets have been purposed in the context of IVD regeneration. Anti-inflammatory nanoparticles (NPs) of Chitosan and Poly-(γ-glutamic acid) with a non-steroidal anti-inflammatory drug, diclofenac (Df), were previously shown to counteract a pro-inflammatory response of human macrophages. Here, the effect of intradiscal injection of Df-NPs in degenerated IVD was evaluated. For that, Df-NPs were injected in a bovine IVD organ culture in pro-inflammatory/degenerative conditions, upon stimulation with needle-puncture and interleukin (IL)-1β. Df-NPs were internalized by IVD cells, down-regulating IL-6, IL-8, MMP1 and MMP3, and decreasing PGE2 production, compared with IL-1β-stimulated IVD punches. Interestingly, at the same time, Df-NPs promoted an up-regulation of extracellular matrix (ECM) proteins, namely collagen type II and aggrecan. Allover, this study suggests that IVD treatment with Df-NPs not only reduces inflammation, but also delays and/or decreases ECM degradation, opening perspectives to new intradiscal therapies for IVD degeneration, based on the modulation of inflammation. STATEMENT OF SIGNIFICANCE Degeneration of the IVD is an age-related progressive process considered to be the major cause of spine disorders. The pro-inflammatory environment and biomechanics of the degenerated IVD is a challenge for regenerative therapies. The novelty of this work is the intradiscal injection of an anti-inflammatory therapy based on Chitosan (Ch)/Poly-(γ-glutamic acid) (γ-PGA) nanoparticles (NPs) with an anti-inflammatory drug (diclofenac, Df), previously developed by us. This drug delivery system was tested in a pro-inflammatory/degenerative intervertebral disc ex vivo model. The main findings support the success of an anti-inflammatory therapy for degenerated IVD that not only reduces inflammation but also promotes native IVD matrix production.
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Affiliation(s)
- Graciosa Q Teixeira
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; Institute of Orthopaedic Research and Biomechanics, University of Ulm, Helmholtzstrasse 14, 89081 Ulm, Germany; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Catarina Leite Pereira
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Flávia Castro
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Joana R Ferreira
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Maria Gomez-Lazaro
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Paulo Aguiar
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Mário A Barbosa
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Cornelia Neidlinger-Wilke
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Helmholtzstrasse 14, 89081 Ulm, Germany
| | - Raquel M Goncalves
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal.
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Li K, Li Y, Xu B, Mao L, Zhao J. Sesamin inhibits lipopolysaccharide-induced inflammation and extracellular matrix catabolism in rat intervertebral disc. Connect Tissue Res 2016; 57:347-59. [PMID: 27128308 DOI: 10.1080/03008207.2016.1182998] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Intervertebral disc (IVD) degeneration contributes to most spinal degenerative diseases, while treatment inhibiting IVD degeneration is still in the experimental stage. Sesamin, a bioactive component extracted from sesame, has been reported to exert chondroprotective and anti-inflammatory effects. Here, we analyzed the anti-inflammatory and anti-catabolic effects of sesamin on rat IVD in vitro and ex vivo. Results show that sesamin significantly inhibits the lipopolysaccharide (LPS)-induced expression of catabolic enzymes (MMP-1, MMP-3, MMP-13, ADAMTS-4, ADAMTS-5) and inflammation factors (IL-1β, TNF-α, iNOS, NO, COX-2, PGE2) in a dose-dependent manner in vitro. It is also proven that migration of macrophages induced by LPS can be inhibited by treatment with sesamin. Organ culture experiments demonstrate that sesamin protects the IVD from LPS-induced depletion of the extracellular matrix ex vivo. Moreover, sesamin suppresses LPS-induced activation of the mitogen-activated protein kinase (MAPK) pathway through inhibiting phosphorylation of JNK, the common downstream signaling pathway of LPS and IL-1β, which may be the potential mechanism of the effects of sesamin. In light of our results, sesamin protects the IVD from inflammation and extracellular matrix catabolism, presenting positive prospects in the treatment of IVD degenerative diseases.
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Affiliation(s)
- Kang Li
- a Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery , Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Yan Li
- a Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery , Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Bo Xu
- a Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery , Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Lu Mao
- a Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery , Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Jie Zhao
- a Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery , Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
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Spontaneous Regression of Herniated Lumbar Disc with New Disc Protrusion in the Adjacent Level. Case Rep Orthop 2016; 2016:1538072. [PMID: 27429818 PMCID: PMC4939176 DOI: 10.1155/2016/1538072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/02/2016] [Accepted: 06/05/2016] [Indexed: 11/17/2022] Open
Abstract
Spontaneous regression of herniated lumbar discs was reported occasionally. The mechanisms proposed for regression of disc herniation are still incomplete. This paper describes and discusses a case of spontaneous regression of herniated lumbar discs with a new disc protrusion in the adjacent level. A 41-year-old man was admitted with radiating pain and numbness in the left lower extremity with a left posterolateral disc extrusion at L5-S1 level. He was admitted to hospital with low back pain due to disc herniation caudally immigrating at L4-5 level three years ago. He refused the surgical intervention that was offered and was treated conservatively at that time. He had no neurological deficit and a history of spontaneous regression of the extruded lumbar disc; so, a conservative therapy, including bed rest, physical therapy, nonsteroidal anti-inflammatory drugs, and analgesics, was advised. In conclusion, herniated lumbar disc fragments may regress spontaneously. Reports are prone to advise conservative treatment for extruded or sequestrated lumbar disc herniations. However, these patients should be followed up closely; new herniation at adjacent/different level may occur. Furthermore, it is important to know which herniated disk should be removed and which should be treated conservatively, because disc herniation may cause serious complications as muscle weakness and cauda equine syndrome.
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Wang Z, Qu Z, Fu C, Xu F, Chen Y, Wang Z, Liu Y. Interleukin 1 Polymorphisms Contribute to Intervertebral Disc Degeneration Risk: A Meta-Analysis. PLoS One 2016; 11:e0156412. [PMID: 27253397 PMCID: PMC4890740 DOI: 10.1371/journal.pone.0156412] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 05/13/2016] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE We performed a meta-analysis to assess association between interleukin 1 (IL-1) polymorphisms and the risk of Intervertebral Disc Degeneration (IDD). BACKGROUND A series of studies have investigated the association between common single nucleotide polymorphisms in IL-1 and IDD risk; however, the overall results are inconclusive. METHODS Two independent investigators conducted a systematic search for relevant available studies. Allele frequencies were extracted from each study. The association between the IL-1α (+889C/T) or IL-1β (+3954C/T) polymorphism and IDD risk was measured by odds ratios (OR) with 95% confidence intervals (95% CI). RESULTS Five and six studies, respectively, were ultimately included in the meta-analysis for the IL-1α (+889C/T) and IL-1β (+3954C/T) polymorphism. The combined results showed that the IL-1α (+889C/T) polymorphism was significantly associated with increased susceptibility to IDD, particularly in Caucasians (TT versus CC: OR = 2.95, 95% CI: 1.45, 6.04; Pheterogeneity = 0.82; TT versus CC/CT OR = 2.29, 95% CI: 1.18, 4.47; Pheterogeneity = 0.20). In contrast, the IL-1β (+3954C/T) polymorphism showed a trend towards increased risk in Caucasians but no association in Asians. CONCLUSION This meta-analysis suggested that the IL-1α (+889C/T) polymorphism is significantly associated with risk of IDD, especially in Caucasian populations.
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Affiliation(s)
- Zheng Wang
- Department of Spinal Surgery, The First Hospital of Jilin University, No.71, Xinmin Avenue, Chaoyang District, Changchun, Jilin Province, 130021, China
| | - Zhigang Qu
- Department of Spinal Surgery, The First Hospital of Jilin University, No.71, Xinmin Avenue, Chaoyang District, Changchun, Jilin Province, 130021, China
| | - Changfeng Fu
- Department of Spinal Surgery, The First Hospital of Jilin University, No.71, Xinmin Avenue, Chaoyang District, Changchun, Jilin Province, 130021, China
| | - Feng Xu
- Department of Spinal Surgery, The First Hospital of Jilin University, No.71, Xinmin Avenue, Chaoyang District, Changchun, Jilin Province, 130021, China
| | - Yong Chen
- Department of Neurosurgery, The First Hospital of Jilin University, No.71, Xinmin Avenue, Chaoyang District, Changchun, Jilin Province, 130021, China
| | - Zhenyu Wang
- Department of Spinal Surgery, The First Hospital of Jilin University, No.71, Xinmin Avenue, Chaoyang District, Changchun, Jilin Province, 130021, China
- * E-mail: (ZYW); (YL)
| | - Yi Liu
- Department of Spinal Surgery, The First Hospital of Jilin University, No.71, Xinmin Avenue, Chaoyang District, Changchun, Jilin Province, 130021, China
- * E-mail: (ZYW); (YL)
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Cyclic tensile stress of human annulus fibrosus cells induces MAPK activation: involvement in proinflammatory gene expression. Osteoarthritis Cartilage 2016; 24:679-87. [PMID: 26687822 DOI: 10.1016/j.joca.2015.11.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 11/05/2015] [Accepted: 11/24/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To study the role of mitogen-activated protein kinases (MAPKs) in human annulus fibrosus (AF) cells subjected to cyclic tensile stress (CTS). DESIGN An in vitro system for CTS studies was established using AF cultures on fibronectin-coated silicone dishes. MAPK phosphorylation was studied by western analysis, while gene expression was followed by qRT-PCR. DNA synthesis was assessed by both tritiated thymidine incorporation and flow cytometry, and collagen synthesis using tritiated proline incorporation and the protease-free collagenase method. RESULTS All three MAPKs studied, i.e., ERK, SAPK/JNK, and p38 were found to be phosphorylated immediately after CTS application within physiological range. A second wave of phosphorylation appeared at later time points. MAPK activation was elevated at higher CTS magnitudes, but independent of the frequency. CTS did not stimulate DNA synthesis neither extracellular matrix turnover, but it stimulated the proinflammatory genes, COX-2, IL-6, and IL-8. This stimulation was more intense at the highest magnitude (8%) tested and at the median frequency (1 Hz) and time interval (12 h). Blocking of ERK, SAPK/JNK, and p38 MAPK inhibited the CTS-induced stimulation of COX-2 and IL-8, while IL-6 expression was mediated only by SAPK/JNK and p38 MAPK. CONCLUSIONS We have described for the first time the activation of MAPKs in human AF cells in response to CTS and showed that it drives an inflammatory reaction. These observations shed light on the mechanisms of intervertebral disc (IVD) cell responses to mechanical stress, contributing to the understanding of disc pathophysiology and possibly to the design of novel therapeutic interventions.
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Resolvin D1 Inhibits Mechanical Hypersensitivity in Sciatica by Modulating the Expression of Nuclear Factor-κB, Phospho-extracellular Signal–regulated Kinase, and Pro- and Antiinflammatory Cytokines in the Spinal Cord and Dorsal Root Ganglion. Anesthesiology 2016; 124:934-44. [PMID: 26808633 DOI: 10.1097/aln.0000000000001010] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract
Background
Accumulating evidence indicates that spinal inflammatory and immune responses play an important role in the process of radicular pain caused by intervertebral disk herniation. Resolvin D1 (RvD1) has been shown to have potent antiinflammatory and antinociceptive effects. The current study was undertaken to investigate the analgesic effect of RvD1 and its underlying mechanism in rat models of noncompressive lumbar disk herniation.
Methods
Rat models of noncompressive lumber disk herniation were established, and mechanical thresholds were evaluated using the von Frey test during an observation period of 21 days (n = 8/group). Intrathecal injection of vehicle or RvD1 (10 or 100 ng) was performed for three successive postoperative days. On day 7, the ipsilateral spinal dorsal horns and L5 dorsal root ganglions (DRGs) were removed to assess the expressions of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), IL-10, and transforming growth factor-β1 (TGF-β1) and the activation of nuclear factor-κB (NF-κB)/p65 and phospho-extracellular signal–regulated kinase (p-ERK) signaling (n = 30/group).
Results
The application of nucleus pulposus to L5 DRG induced prolonged mechanical allodynia, inhibited the production of IL-10 and TGF-β1, and up-regulated the expression of TNF-α, IL-1β, NF-κB/p65, and p-ERK in the spinal dorsal horns and DRGs. Intrathecal injection of RvD1 showed a potent analgesic effect, inhibited the up-regulation of TNF-α and IL-1β, increased the release of IL-10 and TGF-β1, and attenuated the expression of NF-κB/p65 and p-ERK in a dose-dependent manner.
Conclusions
The current study showed that RvD1 might alleviate neuropathic pain via regulating inflammatory mediators and NF-κB/p65 and p-ERK pathways. Its antiinflammatory and proresolution properties may offer novel therapeutic approaches for the management of neuropathic pain.
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Li JK, Nie L, Zhao YP, Zhang YQ, Wang X, Wang SS, Liu Y, Zhao H, Cheng L. IL-17 mediates inflammatory reactions via p38/c-Fos and JNK/c-Jun activation in an AP-1-dependent manner in human nucleus pulposus cells. J Transl Med 2016; 14:77. [PMID: 26988982 PMCID: PMC4794827 DOI: 10.1186/s12967-016-0833-9] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 03/07/2016] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Low back pain and sciatica caused by intervertebral disc (IVD) disease are associated with inflammatory responses. The cytokine interleukin 17 (IL-17) is elevated in herniated and degenerated IVD tissues and acts as a regulator of disc inflammation. The objective of this study was to investigate the involvement of IL-17A in IVD inflammatory response and to explore the mechanisms underlying this response. METHODS Cells were isolated from nucleus pulposus (NP) tissues collected from patients undergoing surgeries for IVD degeneration. The concentrations of COX2 and PGE2, as well as of select proteins involved in the mitogen-activated protein kinase (MAPK)/activating protein-1 (AP-1) pathway, were quantified in NP cells after exposure to IL-17 with or without pretreatment with MAPK or AP-1 inhibitors. RESULTS Our results showed that IL-17A increased COX2 expression and PGE2 production via the activation of MAPKs, including p38 kinase and Jun N-terminal kinase (JNK). Moreover, IL-17A-induced COX2 and PGE2 production was shown to rely on p38/c-Fos and JNK/c-Jun activation in an AP-1-dependent manner. CONCLUSION In summary, our results indicate that IL-17A enhances COX2 expression and PGE2 production via the p38/c-Fos and JNK/c-Jun signalling pathways in NP cells to mediate IVD inflammation.
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Affiliation(s)
- Jing-kun Li
- />Department of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, 250012 Shandong People’s Republic of China
| | - Lin Nie
- />Department of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, 250012 Shandong People’s Republic of China
| | - Yun-peng Zhao
- />Department of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, 250012 Shandong People’s Republic of China
| | - Yuan-qiang Zhang
- />Department of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, 250012 Shandong People’s Republic of China
| | - Xiaoqing Wang
- />Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai, 200011 People’s Republic of China
| | - Shuai-shuai Wang
- />Department of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, 250012 Shandong People’s Republic of China
| | - Yi Liu
- />Department of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, 250012 Shandong People’s Republic of China
| | - Hua Zhao
- />Department of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, 250012 Shandong People’s Republic of China
| | - Lei Cheng
- />Department of Orthopaedic Surgery, Qilu Hospital, Shandong University, Jinan, 250012 Shandong People’s Republic of China
- />Qilu Hospital Shandong University, No.107, Wen Hua Xi Road, Jinan, 250012 Shandong People’s Republic of China
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Teixeira GQ, Boldt A, Nagl I, Pereira CL, Benz K, Wilke HJ, Ignatius A, Barbosa MA, Gonçalves RM, Neidlinger-Wilke C. A Degenerative/Proinflammatory Intervertebral Disc Organ Culture: An Ex Vivo Model for Anti-inflammatory Drug and Cell Therapy. Tissue Eng Part C Methods 2015; 22:8-19. [PMID: 26565141 DOI: 10.1089/ten.tec.2015.0195] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Resolution of intervertebral disc (IVD) degeneration-associated inflammation is a prerequisite for tissue regeneration and could possibly be achieved by strategies ranging from pharmacological to cell-based therapies. In this study, a proinflammatory disc organ culture model was established. Bovine caudal disc punches were needle punctured and additionally stimulated with lipopolysaccharide (10 μg/mL) or interleukin-1β (IL-1β, 10-100 ng/mL) for 48 h. Two intradiscal therapeutic approaches were tested: (i) a nonsteroidal anti-inflammatory drug, diclofenac (Df) and (ii) human mesenchymal stem/stromal cells (MSCs) embedded in an albumin/hyaluronan hydrogel. IL-1β-treated disc organ cultures showed a statistically significant upregulation of proinflammatory markers (IL-6, IL-8, prostaglandin E2 [PGE2]) and metalloproteases (MMP1, MMP3) expression, while extracellular matrix (ECM) proteins (collagen II, aggrecan) were significantly downregulated. The injection of the anti-inflammatory drug, Df, was able to reduce the levels of proinflammatory cytokines and MMPs and surprisingly increase ECM protein levels. These results point the intradiscal application of anti-inflammatory drugs as promising therapeutics for disc degeneration. In parallel, the immunomodulatory role of MSCs on this model was also evaluated. Although a slight downregulation of IL-6 and IL-8 expression could be found, the variability among the five donors tested was high, suggesting that the beneficial effect of these cells on disc degeneration needs to be further evaluated. The proinflammatory/degenerative IVD organ culture model established can be considered a suitable approach for testing novel therapeutic drugs, thus reducing the number of animals in in vivo experimentation. Moreover, this model can be used to address the cellular and molecular mechanisms that regulate inflammation in the IVD and their implications in tissue degeneration.
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Affiliation(s)
- Graciosa Q Teixeira
- 1 Institute of Orthopaedic Research and Biomechanics, Center for Musculoskeletal Research, University of Ulm , Ulm, Germany .,2 Instituto de Investigação e Inovação em Saúde, Universidade do Porto , Porto, Portugal .,3 Instituto de Engenharia Biomédica (INEB), Universidade do Porto , Porto, Portugal .,4 Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto , Porto, Portugal
| | - Antje Boldt
- 1 Institute of Orthopaedic Research and Biomechanics, Center for Musculoskeletal Research, University of Ulm , Ulm, Germany
| | - Ines Nagl
- 1 Institute of Orthopaedic Research and Biomechanics, Center for Musculoskeletal Research, University of Ulm , Ulm, Germany
| | - Catarina Leite Pereira
- 2 Instituto de Investigação e Inovação em Saúde, Universidade do Porto , Porto, Portugal .,3 Instituto de Engenharia Biomédica (INEB), Universidade do Porto , Porto, Portugal .,4 Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto , Porto, Portugal
| | - Karin Benz
- 5 Natural and Medical Sciences Institute (NMI), University of Tuebingen , Reutlingen, Germany
| | - Hans-Joachim Wilke
- 1 Institute of Orthopaedic Research and Biomechanics, Center for Musculoskeletal Research, University of Ulm , Ulm, Germany
| | - Anita Ignatius
- 1 Institute of Orthopaedic Research and Biomechanics, Center for Musculoskeletal Research, University of Ulm , Ulm, Germany
| | - Mário A Barbosa
- 2 Instituto de Investigação e Inovação em Saúde, Universidade do Porto , Porto, Portugal .,3 Instituto de Engenharia Biomédica (INEB), Universidade do Porto , Porto, Portugal .,4 Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto , Porto, Portugal
| | - Raquel M Gonçalves
- 2 Instituto de Investigação e Inovação em Saúde, Universidade do Porto , Porto, Portugal .,3 Instituto de Engenharia Biomédica (INEB), Universidade do Porto , Porto, Portugal
| | - Cornelia Neidlinger-Wilke
- 1 Institute of Orthopaedic Research and Biomechanics, Center for Musculoskeletal Research, University of Ulm , Ulm, Germany
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231
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Interleukin-1β in intervertebral disk degeneration. Clin Chim Acta 2015; 450:262-72. [PMID: 26341894 DOI: 10.1016/j.cca.2015.08.029] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 08/26/2015] [Accepted: 08/30/2015] [Indexed: 01/06/2023]
Abstract
Intervertebral disk degeneration (IDD) is the most common diagnosis in patients with low back pain, a main cause of musculoskeletal disability in the world. Interleukin-1 (IL-1) β is the most important member of the IL-1 family, and has a strong pro-inflammatory activity by stimulating the secretion of multiple pro-inflammatory mediators. IL-1β is highly expressed in degenerative intervertebral disk (IVD) tissues and cells, and it has been shown to be involved in multiple pathological processes during disk degeneration, including inflammatory responses, matrix destruction, angiogenesis and innervation, cellular apoptosis, oxidative stress and cellular senescence. However, inhibition of IL-1β is found to promote extracellular matrix (ECM) repair and protect against disk regeneration. In this review, after a brief description of IL-1β signaling, we mainly focus on the expression profiles, roles and therapeutic potential of IL-1β in IDD. A better understanding will help develop novel IL-1β-based therapeutic interventions for degenerative disk disease.
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232
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Wang WJ, Yu XH, Wang C, Yang W, He WS, Zhang SJ, Yan YG, Zhang J. MMPs and ADAMTSs in intervertebral disc degeneration. Clin Chim Acta 2015; 448:238-46. [PMID: 26162271 DOI: 10.1016/j.cca.2015.06.023] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/22/2015] [Accepted: 06/23/2015] [Indexed: 12/22/2022]
Abstract
Intervertebral disc degeneration (IDD) is the most common diagnosis in patients with low back pain, a leading cause of musculoskeletal disability worldwide. The major components of extracellular matrix (ECM) within the discs are type II collagen (Col II) and aggrecan. Excessive destruction of ECM, especially loss of Col II and aggrecan, plays a critical role in promoting the occurrence and development of IDD. Matrix metalloproteinases (MMPs) and a disintegrin and metalloprotease with thrombospondin motifs (ADAMTSs) are primary enzymes that degrade collagens and aggrecan. There is a large and growing body of evidence that many members of MMPs and ADAMTSs are highly expressed in degenerative IVD tissue and cells, and are closely involved in ECM breakdown and the process of disc degeneration. In contrast, targeting these enzymes has shown promise for promoting ECM repair and mitigating disc regeneration. In the current review, after a brief description regarding the biology of MMPs and ADAMTSs, we mainly focus on their expression profiles, roles and therapeutic potential in IDD. A greater understanding of the catabolic pathways involved in IDD will help to develop potential prophylactic or regenerative biological treatment for degenerative disc disease in the future.
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Affiliation(s)
- Wen-Jun Wang
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China.
| | - Xiao-Hua Yu
- Life Science Research Center, University of South China, Hengyang, Hunan 421001, China
| | - Cheng Wang
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China
| | - Wei Yang
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China
| | - Wen-Si He
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China
| | - Shu-Jun Zhang
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China
| | - Yi-Guo Yan
- Department of Spine Surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China
| | - Jian Zhang
- Department of Hand and Micro-surgery, the First Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China
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233
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Tabeeva GR. Low back pain: possibilities of pathogenetic treatment. Zh Nevrol Psikhiatr Im S S Korsakova 2015; 115:162-168. [DOI: 10.17116/jnevro2015115112162-168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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