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Dai J, Liu J, Shen Y, Zhang B, Li C, Liu Z. Regulation of endoplasmic reticulum stress on autophagy and apoptosis of nucleus pulposus cells in intervertebral disc degeneration and its related mechanisms. PeerJ 2024; 12:e17212. [PMID: 38666076 PMCID: PMC11044878 DOI: 10.7717/peerj.17212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 03/19/2024] [Indexed: 04/28/2024] Open
Abstract
Intervertebral disc degeneration (IVDD) is a common and frequent disease in orthopedics, which seriously affects the quality of life of patients. Endoplasmic reticulum stress (ERS)-regulated autophagy and apoptosis play an important role in nucleus pulposus (NP) cells in IVDD. Hypoxia and serum deprivation were used to induce NP cells. Cell counting kit-8 (CCK-8) assay was used to detect cell activity and immunofluorescence (IF) was applied for the appraisement of glucose regulated protein 78 (GRP78) and green fluorescent protein (GFP)-light chain 3 (LC3). Cell apoptosis was detected by flow cytometry and the expression of LC3II/I was detected by western blot. NP cells under hypoxia and serum deprivation were induced by lipopolysaccharide (LPS), and intervened by ERS inhibitor (4-phenylbutyric acid, 4-PBA) and activator (Thapsigargin, TP). Then, above functional experiments were conducted again and western blot was employed for the evaluation of autophagy-, apoptosis and ERS-related proteins. Finally, NP cells under hypoxia and serum deprivation were stimulated by LPS and intervened using apoptosis inhibitor z-Val-Ala-DL-Asp-fluoromethyl ketone (Z-VAD-FMK) and autophagy inhibitor 3-methyladenine (3-MA). CCK-8 assay, IF, flow cytometry and western blot were performed again. Besides, the levels of inflammatory cytokines were measured with enzyme-linked immunosorbent assay (ELISA) and the protein expressions of programmed death markers were estimated with western blot. It showed that serum deprivation induces autophagy and apoptosis. ERS was significantly activated by LPS in hypoxic and serum deprivation environment, and autophagy and apoptosis were significantly promoted. Overall, ERS affects the occurrence and development of IVDD by regulating autophagy, apoptosis and other programmed death.
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Affiliation(s)
- Jiuming Dai
- Department of Orthopedics, Binhai County People’s Hospital, Yancheng, China
| | - Jin Liu
- Department of Orthopedics, Binhai County People’s Hospital, Yancheng, China
| | - Yucheng Shen
- Department of Orthopedics, Binhai County People’s Hospital, Yancheng, China
| | - Bing Zhang
- Department of Orthopedics, Binhai County People’s Hospital, Yancheng, China
| | - Chaonian Li
- Department of Traditional Chinese Medicine, Binhai County People’s Hospital, Yancheng, China
| | - Zhidong Liu
- Department of Orthopedics, Binhai County People’s Hospital, Yancheng, China
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2
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Sun J, Tan Y, Su J, Mikhail H, Pavel V, Deng Z, Li Y. Role and molecular mechanism of ghrelin in degenerative musculoskeletal disorders. J Cell Mol Med 2023; 27:3681-3691. [PMID: 37661635 PMCID: PMC10718156 DOI: 10.1111/jcmm.17944] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 07/19/2023] [Accepted: 08/24/2023] [Indexed: 09/05/2023] Open
Abstract
Ghrelin is a brain-gut peptide, and the first 28-peptide that was found in the gastric mucosa. It has a growth hormone (GH)-releasing hormone-like effect and can potently promote the release of GH from pituitary GH cells; however, it is unable to stimulate GH synthesis. Therefore, ghrelin is believed to play a role in promoting bone growth and development. The correlation between ghrelin and some degenerative diseases of the musculoskeletal system has been reported recently, and ghrelin may be one of the factors influencing degenerative pathologies, such as osteoporosis, osteoarthritis, sarcopenia and intervertebral disc degeneration. With population ageing, the risk of health problems caused by degenerative diseases of the musculoskeletal system gradually increases. In this article, the roles of ghrelin in musculoskeletal disorders are summarized to reveal the potential effects of ghrelin as a key target in the treatment of related bone and muscle diseases and the need for further research.
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Affiliation(s)
- Jianfeng Sun
- Deparment of OrthopedicsXiangya Hospital, Central South UniversityChangshaHunanChina
- Xiangya School of Medicine, Central South UniversityChangshaHunanChina
| | - Yibo Tan
- Deparment of OrthopedicsXiangya Hospital, Central South UniversityChangshaHunanChina
- Xiangya School of Medicine, Central South UniversityChangshaHunanChina
| | - Jingyue Su
- Department of Sports MedicineThe First Affiliated Hospital of Shenzhen University, Shenzhen Second People's HospitalShenzhenGuangdongChina
| | - Herasimenka Mikhail
- Republican Scientific and Practical Center of Traumatology and OrthopedicsMinskBelarus
| | - Volotovski Pavel
- Republican Scientific and Practical Center of Traumatology and OrthopedicsMinskBelarus
| | - Zhenhan Deng
- Department of Sports MedicineThe First Affiliated Hospital of Shenzhen University, Shenzhen Second People's HospitalShenzhenGuangdongChina
| | - Yusheng Li
- Deparment of OrthopedicsXiangya Hospital, Central South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaHunanChina
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3
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Li B, Guo J, Zhou X, Li W, Wang N, Cao R, Cui S. The emerging role of pyroptosis in neuropathic pain. Int Immunopharmacol 2023; 121:110562. [PMID: 37364324 DOI: 10.1016/j.intimp.2023.110562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/10/2023] [Accepted: 06/22/2023] [Indexed: 06/28/2023]
Abstract
Neuropathic pain caused by somatosensory system injuries is notoriously difficult to treat. Previous research has shown that neuroinflammation and cell death have been implicated in the pathophysiology of neuropathic pain. Pyroptosis is a form of programmed cell death associated with inflammatory processes, as it can enhance or sustain the inflammatory response by releasing pro-inflammatory cytokines. This review presents the current knowledge on pyroptosis and its underlying mechanisms, including the canonical and noncanonical pathways. Moreover, we discuss recent findings on the role of pyroptosis in neuropathic pain and its potential as a therapeutic target. In conclusion, this review highlights the potential significance of pyroptosis as a promising target for developing innovative therapies to treat neuropathic pain.
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Affiliation(s)
- Baolong Li
- Department of Hand and Foot Surgery, The Third Bethune Hospital of Jilin University, Changchun, China; Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, Changchun, China
| | - Jin Guo
- Department of Hand and Foot Surgery, The Third Bethune Hospital of Jilin University, Changchun, China; Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, Changchun, China
| | - Xiongyao Zhou
- Department of Hand and Foot Surgery, The Third Bethune Hospital of Jilin University, Changchun, China; Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, Changchun, China
| | - Weizhen Li
- Department of Hand and Foot Surgery, The Third Bethune Hospital of Jilin University, Changchun, China; Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, Changchun, China
| | - Ningning Wang
- Department of Hand and Foot Surgery, The Third Bethune Hospital of Jilin University, Changchun, China; Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, Changchun, China
| | - Rangjuan Cao
- Department of Hand and Foot Surgery, The Third Bethune Hospital of Jilin University, Changchun, China; Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, Changchun, China.
| | - Shusen Cui
- Department of Hand and Foot Surgery, The Third Bethune Hospital of Jilin University, Changchun, China; Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, Changchun, China.
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Ohradanova-Repic A, Praženicová R, Gebetsberger L, Moskalets T, Skrabana R, Cehlar O, Tajti G, Stockinger H, Leksa V. Time to Kill and Time to Heal: The Multifaceted Role of Lactoferrin and Lactoferricin in Host Defense. Pharmaceutics 2023; 15:1056. [PMID: 37111542 PMCID: PMC10146187 DOI: 10.3390/pharmaceutics15041056] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/16/2023] [Accepted: 03/21/2023] [Indexed: 04/29/2023] Open
Abstract
Lactoferrin is an iron-binding glycoprotein present in most human exocrine fluids, particularly breast milk. Lactoferrin is also released from neutrophil granules, and its concentration increases rapidly at the site of inflammation. Immune cells of both the innate and the adaptive immune system express receptors for lactoferrin to modulate their functions in response to it. On the basis of these interactions, lactoferrin plays many roles in host defense, ranging from augmenting or calming inflammatory pathways to direct killing of pathogens. Complex biological activities of lactoferrin are determined by its ability to sequester iron and by its highly basic N-terminus, via which lactoferrin binds to a plethora of negatively charged surfaces of microorganisms and viruses, as well as to mammalian cells, both normal and cancerous. Proteolytic cleavage of lactoferrin in the digestive tract generates smaller peptides, such as N-terminally derived lactoferricin. Lactoferricin shares some of the properties of lactoferrin, but also exhibits unique characteristics and functions. In this review, we discuss the structure, functions, and potential therapeutic uses of lactoferrin, lactoferricin, and other lactoferrin-derived bioactive peptides in treating various infections and inflammatory conditions. Furthermore, we summarize clinical trials examining the effect of lactoferrin supplementation in disease treatment, with a special focus on its potential use in treating COVID-19.
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Affiliation(s)
- Anna Ohradanova-Repic
- Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Romana Praženicová
- Laboratory of Molecular Immunology, Institute of Molecular Biology, Slovak Academy of Sciences, 845 51 Bratislava, Slovakia
| | - Laura Gebetsberger
- Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Tetiana Moskalets
- Laboratory of Molecular Immunology, Institute of Molecular Biology, Slovak Academy of Sciences, 845 51 Bratislava, Slovakia
| | - Rostislav Skrabana
- Laboratory of Structural Biology of Neurodegeneration, Institute of Neuroimmunology, Slovak Academy of Sciences, 845 10 Bratislava, Slovakia
| | - Ondrej Cehlar
- Laboratory of Structural Biology of Neurodegeneration, Institute of Neuroimmunology, Slovak Academy of Sciences, 845 10 Bratislava, Slovakia
| | - Gabor Tajti
- Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Hannes Stockinger
- Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Vladimir Leksa
- Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
- Laboratory of Molecular Immunology, Institute of Molecular Biology, Slovak Academy of Sciences, 845 51 Bratislava, Slovakia
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Kasamkattil J, Gryadunova A, Schmid R, Gay-Dujak MHP, Dasen B, Hilpert M, Pelttari K, Martin I, Schären S, Barbero A, Krupkova O, Mehrkens A. Human 3D nucleus pulposus microtissue model to evaluate the potential of pre-conditioned nasal chondrocytes for the repair of degenerated intervertebral disc. Front Bioeng Biotechnol 2023; 11:1119009. [PMID: 36865027 PMCID: PMC9971624 DOI: 10.3389/fbioe.2023.1119009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/30/2023] [Indexed: 02/16/2023] Open
Abstract
Introduction: An in vitro model that appropriately recapitulates the degenerative disc disease (DDD) microenvironment is needed to explore clinically relevant cell-based therapeutic strategies for early-stage degenerative disc disease. We developed an advanced 3D nucleus pulposus (NP) microtissues (µT) model generated with cells isolated from human degenerating NP tissue (Pfirrmann grade: 2-3), which were exposed to hypoxia, low glucose, acidity and low-grade inflammation. This model was then used to test the performance of nasal chondrocytes (NC) suspension or spheroids (NCS) after pre-conditioning with drugs known to exert anti-inflammatory or anabolic activities. Methods: NPµTs were formed by i) spheroids generated with NP cells (NPS) alone or in combination with ii) NCS or iii) NC suspension and cultured in healthy or degenerative disc disease condition. Anti-inflammatory and anabolic drugs (amiloride, celecoxib, metformin, IL-1Ra, GDF-5) were used for pre-conditioning of NC/NCS. The effects of pre-conditioning were tested in 2D, 3D, and degenerative NPµT model. Histological, biochemical, and gene expression analysis were performed to assess matrix content (glycosaminoglycans, type I and II collagen), production and release of inflammatory/catabolic factors (IL-6, IL-8, MMP-3, MMP-13) and cell viability (cleaved caspase 3). Results: The degenerative NPµT contained less glycosaminoglycans, collagens, and released higher levels of IL-8 compared to the healthy NPµT. In the degenerative NPµT, NCS performed superior compared to NC cell suspension but still showed lower viability. Among the different compounds tested, only IL-1Ra pre-conditioning inhibited the expression of inflammatory/catabolic mediators and promoted glycosaminoglycan accumulation in NC/NCS in DDD microenvironment. In degenerative NPµT model, preconditioning of NCS with IL-1Ra also provided superior anti-inflammatory/catabolic activity compared to non-preconditioned NCS. Conclusion: The degenerative NPµT model is suitable to study the responses of therapeutic cells to microenvironment mimicking early-stage degenerative disc disease. In particular, we showed that NC in spheroidal organization as compared to NC cell suspension exhibited superior regenerative performance and that IL-1Ra pre-conditioning of NCS could further improve their ability to counteract inflammation/catabolism and support new matrix production within harsh degenerative disc disease microenvironment. Studies in an orthotopic in vivo model are necessary to assess the clinical relevance of our findings in the context of IVD repair.
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Affiliation(s)
- Jesil Kasamkattil
- Spine Surgery, University Hospital Basel, Basel, Switzerland,Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Anna Gryadunova
- Spine Surgery, University Hospital Basel, Basel, Switzerland,Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland,World-Class Research Center “Digital Biodesign and Personalized Healthcare”, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Raphael Schmid
- Spine Surgery, University Hospital Basel, Basel, Switzerland,Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Max Hans Peter Gay-Dujak
- Spine Surgery, University Hospital Basel, Basel, Switzerland,Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland,Department of Biomedicine, Institute of Anatomy, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Boris Dasen
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Morgane Hilpert
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Karoliina Pelttari
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Ivan Martin
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Stefan Schären
- Spine Surgery, University Hospital Basel, Basel, Switzerland
| | - Andrea Barbero
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Olga Krupkova
- Spine Surgery, University Hospital Basel, Basel, Switzerland,Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland,*Correspondence: Olga Krupkova,
| | - Arne Mehrkens
- Spine Surgery, University Hospital Basel, Basel, Switzerland,Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
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Liu Z, Zhu J, Liu H, Fu C. Natural products can modulate inflammation in intervertebral disc degeneration. Front Pharmacol 2023; 14:1150835. [PMID: 36874009 PMCID: PMC9978229 DOI: 10.3389/fphar.2023.1150835] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
Intervertebral discs (IVDs) play a crucial role in maintaining normal vertebral anatomy as well as mobile function. Intervertebral disc degeneration (IDD) is a common clinical symptom and is an important cause of low back pain (LBP). IDD is initially considered to be associated with aging and abnormal mechanical loads. However, over recent years, researchers have discovered that IDD is caused by a variety of mechanisms, including persistent inflammation, functional cell loss, accelerated extracellular matrix decomposition, the imbalance of functional components, and genetic metabolic disorders. Of these, inflammation is thought to interact with other mechanisms and is closely associated with the production of pain. Considering the key role of inflammation in IDD, the modulation of inflammation provides us with new options for mitigating the progression of degeneration and may even cause reversal. Many natural substances possess anti-inflammatory functions. Due to the wide availability of such substances, it is important that we screen and identify natural agents that are capable of regulating IVD inflammation. In fact, many studies have demonstrated the potential clinical application of natural substances for the regulation of inflammation in IDD; some of these have been proven to have excellent biosafety. In this review, we summarize the mechanisms and interactions that are responsible for inflammation in IDD and review the application of natural products for the modulation of degenerative disc inflammation.
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Affiliation(s)
- Zongtai Liu
- Department of Spine Surgery, First Hospital of Jilin University, Changchun, China.,Department of Orthopedics, Affiliated Hospital of Beihua University, Jilin, China
| | - Jiabo Zhu
- Department of Orthopedics, Affiliated Hospital of Beihua University, Jilin, China
| | - Haiyan Liu
- Department of Orthopedics, Baicheng Central Hospital, Baicheng, China
| | - Changfeng Fu
- Department of Spine Surgery, First Hospital of Jilin University, Changchun, China
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Li Z, Yang H, Hai Y, Cheng Y. Regulatory Effect of Inflammatory Mediators in Intervertebral Disc Degeneration. Mediators Inflamm 2023; 2023:6210885. [PMID: 37101594 PMCID: PMC10125773 DOI: 10.1155/2023/6210885] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 11/11/2022] [Accepted: 03/18/2023] [Indexed: 04/28/2023] Open
Abstract
Intervertebral disc degeneration (IDD) is a major contributor to back, neck, and radicular pain. It is related to changes in tissue structure and function, including the breakdown of the extracellular matrix (ECM), aging, apoptosis of the nucleus pulposus, and biomechanical tissue impairment. Recently, an increasing number of studies have demonstrated that inflammatory mediators play a crucial role in IDD, and they are being explored as potential treatment targets for IDD and associated disorders. For example, interleukins (IL), tumour necrosis factor-α (TNF-α), chemokines, and inflammasomes have all been linked to the pathophysiology of IDD. These inflammatory mediators are found in high concentrations in intervertebral disc (IVD) tissues and cells and are associated with the severity of LBP and IDD. It is feasible to reduce the production of these proinflammatory mediators and develop a novel therapy for IDD, which will be a hotspot of future research. In this review, the effects of inflammatory mediators in IDD were described.
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Affiliation(s)
- Zhangfu Li
- Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Honghao Yang
- Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Yong Hai
- Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Yunzhong Cheng
- Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
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Ge Y, Chen Y, Guo C, Luo H, Fu F, Ji W, Wu C, Ruan H. Pyroptosis and Intervertebral Disc Degeneration: Mechanistic Insights and Therapeutic Implications. J Inflamm Res 2022; 15:5857-5871. [PMID: 36263145 PMCID: PMC9575467 DOI: 10.2147/jir.s382069] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 10/05/2022] [Indexed: 11/07/2022] Open
Abstract
Low back pain (LBP) is a common problem worldwide, resulting in great patient suffering and great challenges for the social health system. Intervertebral disc (IVD) degeneration (IVDD) is widely acknowledged as one of the key causes of LBP. Accumulating evidence suggests that aberrant pyroptosis of IVD cells is involved in the pathogenesis of IVDD progression, however, the comprehensive roles of pyroptosis in IVDD have not been fully established, leaving attempts to treat IVDD with anti-pyroptosis approaches questionable. In this review, we summarize the characteristics of pyroptosis and emphasize the effects of IVD cell pyroptosis on the pathological progression of IVDD, including secretion of cytokines, nucleus pulposus cell apoptosis and autophagy, accelerated extracellular matrix degradation, annulus fibrosus rupture, cartilage endplate calcification, vascularization, sensory and sympathetic fiber neoinnervation, and infiltrating lymphatic vessels. Finally, we discuss several interventions used to treat IVDD by targeting pyroptosis. This review provides novel insights into the crucial role of IVD cell pyroptosis in IVDD pathogenesis, and could be informative for developing novel therapeutic approaches for IVDD and LBP.
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Affiliation(s)
- Yuying Ge
- The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China
| | - Yuying Chen
- The Fourth Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Chijiao Guo
- The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China
| | - Huan Luo
- Department of Pharmacy, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Fangda Fu
- The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China,Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, People’s Republic of China
| | - Weifeng Ji
- The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China,Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, People’s Republic of China
| | - Chengliang Wu
- The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China,Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, People’s Republic of China,Correspondence: Chengliang Wu, Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, 548 Binwen Road, Hangzhou, 310053, People’s Republic of China, Email
| | - Hongfeng Ruan
- The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China,Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, People’s Republic of China,Hongfeng Ruan, Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, 548 Binwen Road, Hangzhou, 310053, People’s Republic of China, Email
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9
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Ye F, Lyu FJ, Wang H, Zheng Z. The involvement of immune system in intervertebral disc herniation and degeneration. JOR Spine 2022; 5:e1196. [PMID: 35386754 PMCID: PMC8966871 DOI: 10.1002/jsp2.1196] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 02/06/2022] [Accepted: 02/25/2022] [Indexed: 02/06/2023] Open
Abstract
Intervertebral disc (IVD) herniation and degeneration contributes significantly to low back pain (LBP), of which the molecular pathogenesis is not fully understood. Disc herniation may cause LBP and radicular pain, but not all LBP patients have disc herniation. Degenerated discs could be the source of pain, but not all degenerated discs are symptomatic. We previously found that disc degeneration and herniation accompanied by inflammation. We further found that anti‐inflammatory molecules blocked immune responses, alleviated IVD degeneration and pain. Based on our recent findings and the work of others, we hypothesize that immune system may play a prominent role in the production of disc herniation or disc degeneration associated pain. While the nucleus pulposus (NP) is an immune‐privileged organ, the damage of the physical barrier between NP and systemic circulation, or the innervation and vascularization of the degenerated NP, on one hand exposes NP as a foreign antigen to immune system, and on the other hand presents compression on the nerve root or dorsal root ganglion (DRG), which both elicit immune responses induced by immune cells and their mediators. The inflammation can remain for a long time at remote distance, with various types of cytokines and immune cells involved in this pain‐inducing process. In this review, we aim to revisit the autoimmunity of the NP, immune cell infiltration after break of physical barrier, the inflammatory activities in the DRG and the generation of pain. We also summarize the involvement of immune system, including immune cells and cytokines, in degenerated or herniated IVDs and affected DRG.
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Affiliation(s)
- Fubiao Ye
- Department of Spine Surgery, The First Affiliated Hospital Sun Yat-Sen University Guangzhou China.,Department of Orthopaedics, Fujian Provincial Hospital Provincial Clinical Medical College of Fujian Medical University Fuzhou Fujian China
| | - Feng-Juan Lyu
- Joint Center for Regenerative Medicine Research of South China University of Technology and The University of Western Australia, School of Medicine South China University of Technology Guangzhou China
| | - Hua Wang
- Department of Spine Surgery, The First Affiliated Hospital Sun Yat-Sen University Guangzhou China
| | - Zhaomin Zheng
- Department of Spine Surgery, The First Affiliated Hospital Sun Yat-Sen University Guangzhou China.,Pain Research Center Sun Yat-sen University Guangzhou China
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10
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Jang G, Lee SA, Hong JH, Park BR, Kim DK, Kim CS. Chondroprotective Effects of 4,5-Dicaffeoylquinic Acid in Osteoarthritis through NF-κB Signaling Inhibition. Antioxidants (Basel) 2022; 11:antiox11030487. [PMID: 35326137 PMCID: PMC8944529 DOI: 10.3390/antiox11030487] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/26/2022] [Accepted: 02/26/2022] [Indexed: 01/27/2023] Open
Abstract
Osteoarthritis (OA) is characterized by cartilage degradation, inflammation, and pain. The dicaffeoylquinic acid (diCQA) isomer, 4,5-diCQA, exhibits antioxidant activity and various other health-promoting benefits, but its chondroprotective effects have yet to be elucidated. In this study, we aimed to investigate the chondroprotective effects of 4,5-diCQA on OA both in vitro and in vivo. Primary rat chondrocytes were pre-treated with 4,5-diCQA for 1 h before stimulation with interleukin (IL)-1β (5 ng/mL). The accumulation of nitrite, PGE2, and aggrecan was observed using the Griess reagent and ELISA. The protein levels of iNOS, COX-2, MMP-3, MMP-13, ADMATS-4, MAPKs, and the NF-κB p65 subunit were measured by Western blotting. In vivo, the effects of 4,5-diCQA were evaluated for 2 weeks in a destabilization of the medial meniscus (DMM)-surgery-induced OA rat model. 4,5-diCQA significantly inhibited IL-1β-induced expression of nitrite, iNOS, PGE2, COX-2, MMP-3, MMP-13, and ADAMTS-4. 4,5-diCQA also decreased the IL-1β-induced degradation of aggrecan. It also suppressed the IL-1β-induced phosphorylation of MAPKs and translocation of the NF-κB p65 subunit to the nucleus. These findings indicate that 4,5-diCQA inhibits DMM-surgery-induced cartilage destruction and proteoglycan loss in vivo. 4,5-diCQA may be a potential therapeutic agent for the alleviation of OA progression. In this study, diclofenac was set to be administered once every two days, but it showed an effect on OA. These results may be used as basic data to suggest a new dosing method for diclofenac.
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Affiliation(s)
- Goeun Jang
- Department of Oral Biochemistry, College of Dentistry, Chosun University, Gwangju 61452, Korea; (G.J.); (S.A.L.)
| | - Seul Ah Lee
- Department of Oral Biochemistry, College of Dentistry, Chosun University, Gwangju 61452, Korea; (G.J.); (S.A.L.)
| | - Joon Ho Hong
- Nano Bio Research Center, Jeonnam Bioindustry Foundation, Wando 59108, Korea;
| | - Bo-Ram Park
- Department of Dental Hygiene, College of Health and Welfare, Kyungwoon University, Gumi 39160, Korea;
| | - Do Kyung Kim
- Oral Biology Research Institute, College of Dentistry, Chosun University, Gwangju 61452, Korea;
| | - Chun Sung Kim
- Department of Oral Biochemistry, College of Dentistry, Chosun University, Gwangju 61452, Korea; (G.J.); (S.A.L.)
- Correspondence: ; Tel.: +82-62-230-7088; Fax: +82-62-232-6896
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11
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Kirnaz S, Singh S, Capadona C, Lintz M, Goldberg JL, McGrath LB, Medary B, Sommer F, Bonassar LJ, Härtl R. Innovative Biological Treatment Methods for Degenerative Disc Disease. World Neurosurg 2021; 157:282-299. [PMID: 34929786 DOI: 10.1016/j.wneu.2021.09.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 10/19/2022]
Abstract
Low back pain is the leading cause of work absences and years lived with disability, and it is often associated with degenerative disc disease. In recent years, biological treatment approaches such as the use of growth factors, cell injections, annulus fibrosus (AF) repair, nucleus pulposus replacement, and tissue-engineered discs have been explored as means for preventing or reversing degenerative disc disease. Both animal and clinical studies have shown promising results for cell-based therapy on the grounds of its regenerative potential. Clinical data also indicate that stem cell injection is safe when appropriately performed, albeit its long-term safety and efficacy are yet to be explored. Numerous challenges also remain to be overcome, such as isolating, differentiating, and preconditioning the disc cells, as well as managing the nutrient-deficient and oxygen-deficient micromilieu of the intervertebral disc (IVD). AF repair methods including devices used in clinical trials have shown success in decreasing reherniation rates and improving overall clinical outcomes. In addition, recent studies that combined AF repair and nucleus pulposus replacement have shown improved biomechanical stability in IVDs after the combined treatment. Tissue-engineered IVDs for total disc replacement are still being developed, and future studies are necessary to overcome the challenges in their delivery, efficacy, and safety.
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Affiliation(s)
- Sertac Kirnaz
- Department of Neurological Surgery, Weill Cornell Medicine Brain and Spine Center, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, New York, USA
| | - Sunidhi Singh
- Department of Neurological Surgery, Weill Cornell Medicine Brain and Spine Center, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, New York, USA
| | - Charisse Capadona
- Department of Neurological Surgery, Weill Cornell Medicine Brain and Spine Center, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, New York, USA
| | - Marianne Lintz
- Department of Neurological Surgery, Weill Cornell Medicine Brain and Spine Center, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, New York, USA
| | - Jacob L Goldberg
- Department of Neurological Surgery, Weill Cornell Medicine Brain and Spine Center, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, New York, USA
| | - Lynn B McGrath
- Department of Neurological Surgery, Weill Cornell Medicine Brain and Spine Center, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, New York, USA
| | - Branden Medary
- Department of Neurological Surgery, Weill Cornell Medicine Brain and Spine Center, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, New York, USA
| | - Fabian Sommer
- Department of Neurological Surgery, Weill Cornell Medicine Brain and Spine Center, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, New York, USA
| | - Lawrence J Bonassar
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York, USA; Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York, USA
| | - Roger Härtl
- Department of Neurological Surgery, Weill Cornell Medicine Brain and Spine Center, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, New York, USA.
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12
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Aripaka SS, Bech-Azeddine R, Jørgensen LM, Chughtai SA, Gaarde C, Bendix T, Mikkelsen JD. Low back pain scores correlate with the cytokine mRNA level in lumbar disc biopsies: a study of inflammatory markers in patients undergoing lumbar spinal fusion. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2021; 30:2967-2974. [PMID: 34023967 DOI: 10.1007/s00586-021-06868-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 04/26/2021] [Accepted: 05/02/2021] [Indexed: 01/09/2023]
Abstract
PURPOSE The molecular mechanism behind pain in degenerative disc disease (DDD) and chronic low back pain (LBP) patients is largely unknown. This present study examines the association of LBP and disability to mediators of the inflammatory cascade, as indexed by mRNA gene expression of pro-inflammatory cytokine markers in the intervertebral disc (IVD). METHODS Biopsies of the annulus fibrosus (AF) and the nucleus pulposes (NP) from patients with DDD undergoing 1-2 level fusion surgery at L4/L5 or L5/S1 were obtained from total of 34 patients [9 M, 25 F] with average age of 53 [32-63]. The mRNA expression of TNF-α, IL-1β, and IL-6 in the AF and NP was analyzed using quantitative real-time polymerase chain reaction (RT-qPCR), and the expression level of these markers was correlated to the visual analogue scale (VAS) and Oswestry Disability Index (ODI) scores (0-100) for pain and disability. RESULTS We report a statistically significant positive correlation between pain intensity (VAS score) and the expression of TNF-α in both the AF (r = 0.54, p = 0.001) and NP (r = 0.40, p = 0.02), similarly with IL-1β in AF (r = 0.37, p = 0.02) and IL-6 in NP (r = 0.40, p = 0.02). In addition, we found significant positive correlation observed between disability score (ODI) and expression of IL-6 in both AF (r = 0.36, p = 0.03) and NP (r = 0.41, p = 0.01). CONCLUSION We conclude that the intensity of LBP and disability is associated with the level of inflammation in the disc.
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Affiliation(s)
- Sanjay S Aripaka
- Neurobiology Research Unit, University Hospital Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - R Bech-Azeddine
- Copenhagen Spine Research Unit, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - L M Jørgensen
- Neurobiology Research Unit, University Hospital Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
- Copenhagen Spine Research Unit, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - S A Chughtai
- Copenhagen Spine Research Unit, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark
| | - C Gaarde
- Copenhagen Spine Research Unit, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark
| | - T Bendix
- Copenhagen Spine Research Unit, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark
| | - J D Mikkelsen
- Neurobiology Research Unit, University Hospital Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
- Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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13
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Jacobsen T, Hernandez P, Chahine N. Inhibition of toll-like receptor 4 protects against inflammation-induced mechanobiological alterations to intervertebral disc cells. Eur Cell Mater 2021; 41:576-591. [PMID: 34013512 PMCID: PMC8329983 DOI: 10.22203/ecm.v041a37] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Intervertebral disc (IVD) degeneration is associated with elevated levels of inflammatory cytokines implicated in disease aetiology and matrix degradation. Toll-like receptor-4 (TLR4) has been shown to participate in the inflammatory responses of the nucleus pulposus (NP) and its levels are upregulated in disc degeneration. Activation of TLR4 in NP cells leads to significant, persistent changes in cell biophysical properties, including hydraulic permeability and osmotically active water content, as well as alterations to the actin cytoskeleton. The study hypothesis was that inflammation-induced changes to cellular biomechanical properties and actin cytoskeleton of NP cells could be prevented by inhibiting TLR4 signalling. Isolated NP cells from bovine discs were treated with lipopolysaccharide (LPS), the best studied TLR4 agonist, with or without treatment with the TLR4 inhibitor TAK-242. Cellular volume regulation responses to step osmotic loading were measured and the transient volume-response was captured by time-lapse microscopy. Volume-responses were analysed using mixture theory framework to investigate hydraulic permeability and osmotically active intracellular water content. Hydraulic permeability and cell radius were significantly increased with LPS treatment and these changes were blocked in cells treated with TAK-242. LPS-induced remodelling of cortical actin and IL-6 upregulation were also mitigated by TAK-242 treatment. These findings indicated that TLR4 signalling participated in NP cell biophysical regulation and may be an important target for mitigating altered cell responses observed in IVD inflammation and degeneration.
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Affiliation(s)
- T.D. Jacobsen
- Department of Biomedical Engineering, Columbia University,
New York, NY
| | - P.A. Hernandez
- Department of Orthopaedic Surgery, University of Texas
Southwestern Medical Centre, Dallas, TX
| | - N.O. Chahine
- Department of Biomedical Engineering, Columbia University,
New York, NY,Department of Orthopaedic Surgery, Columbia University, New
York, NY,Address for correspondence: Nadeen
Chahine, 650 W 168th St, William Black Building, 14th
Floor Room 14-1408E, New York, NY 10032, USA. Telephone number: +1 2123051515,
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14
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Lactoferrin as a regenerative agent: The old-new panacea? Pharmacol Res 2021; 167:105564. [PMID: 33744427 DOI: 10.1016/j.phrs.2021.105564] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/01/2021] [Accepted: 03/15/2021] [Indexed: 01/17/2023]
Abstract
Lactoferrin (Lf) possesses various biological properties and therapeutic potentials being a perspective anti-inflammatory, antibacterial, antiviral, antioxidant, antitumor, and immunomodulatory agent. A significant body of literature has also demonstrated that Lf modulates regenerative processes in different anatomical structures, such as bone, cartilage, skin, mucosa, cornea, tendon, vasculature, and adipose tissue. Hence, this review collected and analyzed the data on the regenerative effects of Lf, as well as paid specific attention to their molecular basis. Furthermore, tissue and condition-specific activities of different Lf types as well as problems of their delivery to the targeted organs were discussed. The authors strongly hope that this review will stimulate researchers to focus on the highlighted topics thus accelerating the progress of Lf's wider clinical application.
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15
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Lyu FJ, Cui H, Pan H, MC Cheung K, Cao X, Iatridis JC, Zheng Z. Painful intervertebral disc degeneration and inflammation: from laboratory evidence to clinical interventions. Bone Res 2021; 9:7. [PMID: 33514693 PMCID: PMC7846842 DOI: 10.1038/s41413-020-00125-x] [Citation(s) in RCA: 157] [Impact Index Per Article: 52.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 10/01/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023] Open
Abstract
Low back pain (LBP), as a leading cause of disability, is a common musculoskeletal disorder that results in major social and economic burdens. Recent research has identified inflammation and related signaling pathways as important factors in the onset and progression of disc degeneration, a significant contributor to LBP. Inflammatory mediators also play an indispensable role in discogenic LBP. The suppression of LBP is a primary goal of clinical practice but has not received enough attention in disc research studies. Here, an overview of the advances in inflammation-related pain in disc degeneration is provided, with a discussion on the role of inflammation in IVD degeneration and pain induction. Puncture models, mechanical models, and spontaneous models as the main animal models to study painful disc degeneration are discussed, and the underlying signaling pathways are summarized. Furthermore, potential drug candidates, either under laboratory investigation or undergoing clinical trials, to suppress discogenic LBP by eliminating inflammation are explored. We hope to attract more research interest to address inflammation and pain in IDD and contribute to promoting more translational research.
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Affiliation(s)
- Feng-Juan Lyu
- grid.79703.3a0000 0004 1764 3838School of Medicine, South China University of Technology, Guangzhou, China
| | - Haowen Cui
- grid.12981.330000 0001 2360 039XDepartment of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hehai Pan
- grid.12981.330000 0001 2360 039XGuangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China ,grid.12981.330000 0001 2360 039XBreast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kenneth MC Cheung
- grid.194645.b0000000121742757Department of Orthopedics & Traumatology, The University of Hong Kong, Hong Kong, SAR China
| | - Xu Cao
- grid.21107.350000 0001 2171 9311Department of Orthopedic Surgery, Johns Hopkins University, Baltimore, MD USA
| | - James C. Iatridis
- grid.59734.3c0000 0001 0670 2351Leni and Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - Zhaomin Zheng
- grid.12981.330000 0001 2360 039XDepartment of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China ,grid.12981.330000 0001 2360 039XPain Research Center, Sun Yat-sen University, Guangzhou, China
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Saettone V, Biasato I, Radice E, Schiavone A, Bergero D, Meineri G. State-of-the-Art of the Nutritional Alternatives to the Use of Antibiotics in Humans and Monogastric Animals. Animals (Basel) 2020; 10:ani10122199. [PMID: 33255356 PMCID: PMC7759783 DOI: 10.3390/ani10122199] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Antibiotic resistance represents a worldwide recognized issue affecting both human and veterinary medicine, with a particular focus being directed towards monogastric animals destined for human consumption. This scenario is the result of frequent utilization of the antibiotics either for therapeutic purposes (humans and animals) or as growth promoters (farmed animals). Therefore, the search for nutritional alternatives has progressively been the object of significant efforts by the scientific community. So far, probiotics, prebiotics and postbiotics are considered the most promising products, as they are capable of preventing or treating gastrointestinal diseases as well as restoring a eubiosis condition after antibiotic-induced dysbiosis development. This review provides an updated state-of-the-art of these nutritional alternatives in both humans and monogastric animals. Abstract In recent years, the indiscriminate use of antibiotics has been perpetrated across human medicine, animals destined for zootechnical productions and companion animals. Apart from increasing the resistance rate of numerous microorganisms and generating multi-drug resistance (MDR), the nonrational administration of antibiotics causes sudden changes in the structure of the intestinal microbiota such as dysbiotic phenomena that can have a great clinical significance for both humans and animals. The aim of this review is to describe the state-of-the-art of alternative therapies to the use of antibiotics and their effectiveness in humans and monogastric animals (poultry, pigs, fish, rabbits, dogs and cats). In particular, those molecules (probiotics, prebiotics and postbiotics) which have a direct function on the gastrointestinal health are herein critically analysed in the prevention or treatment of gastrointestinal diseases or dysbiosis induced by the consumption of antibiotics.
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Affiliation(s)
- Vittorio Saettone
- Department of Veterinary Sciences, School of Agriculture and Veterinary Medicine, University of Turin, Grugliasco, Largo Braccini 2, 10095 Torino, Italy; (V.S.); (A.S.); (D.B.); (G.M.)
| | - Ilaria Biasato
- Department of Agricultural, Forestry and Food Sciences, School of Agriculture and Veterinary Medicine, University of Turin, Grugliasco, Largo Braccini 2, 10095 Torino, Italy
- Correspondence:
| | - Elisabetta Radice
- Department of Surgical Sciences, Medical School, University of Turin, Corso Dogliotti 14, 10126 Torino, Italy;
| | - Achille Schiavone
- Department of Veterinary Sciences, School of Agriculture and Veterinary Medicine, University of Turin, Grugliasco, Largo Braccini 2, 10095 Torino, Italy; (V.S.); (A.S.); (D.B.); (G.M.)
| | - Domenico Bergero
- Department of Veterinary Sciences, School of Agriculture and Veterinary Medicine, University of Turin, Grugliasco, Largo Braccini 2, 10095 Torino, Italy; (V.S.); (A.S.); (D.B.); (G.M.)
| | - Giorgia Meineri
- Department of Veterinary Sciences, School of Agriculture and Veterinary Medicine, University of Turin, Grugliasco, Largo Braccini 2, 10095 Torino, Italy; (V.S.); (A.S.); (D.B.); (G.M.)
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17
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Shen C, Li Y, Chen Y, Huang L, Zhang F, Wu W. Melatonin prevents the binding of vascular endothelial growth factor to its receptor and promotes the expression of extracellular matrix-associated genes in nucleus pulposus cells. Exp Ther Med 2020; 20:106. [PMID: 32989385 PMCID: PMC7517348 DOI: 10.3892/etm.2020.9227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 05/28/2020] [Indexed: 12/13/2022] Open
Abstract
The mechanisms of intervertebral disc degeneration (IDD) involve numerous factors, including loss of the extracellular matrix (ECM) and vascular ingrowth. Melatonin has been reported to protect intervertebral discs (IVDs) from degeneration and to exert a potential anti-angiogenic effect. The aim of the present study was to investigate the anti-angiogenic and anabolic effects of melatonin in IVDs. Human nucleus pulposus (NP) and degenerative nucleus pulposus (DNP) cells were isolated and treated with melatonin. The results indicated that melatonin promoted ECM synthesis and NP cell proliferation. In addition, an NP/DNP and human umbilical vein endothelial cell (HUVEC) co-culture model was used to investigate the anti-angiogenesis effect of melatonin. Melatonin was indicated to suppress tube formation and migration of HUVECs in culture with NP cell-conditioned medium, as well as in an NP cell co-culture model. Fluorescence-labeled vascular endothelial growth factor (VEGF) was used to study the binding between VEGF and its receptor. The results of the present study indicated that melatonin exerts an angiogenic effect via inhibition of the binding of VEGF to its receptor in HUVECs. Taken together, these results suggest that melatonin is a potential agent to prevent IDD.
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Affiliation(s)
- Chengchun Shen
- Department of Orthopedics, Ningbo No. 6 Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Yan Li
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Ningbo, Zhejiang 315010, P.R. China
| | - Yunlin Chen
- Department of Orthopedics, Ningbo No. 6 Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Lei Huang
- Department of Orthopedics, Ningbo No. 6 Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Feng Zhang
- Department of Orthopedics, Ningbo No. 6 Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Wei Wu
- Department of Orthopedics, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo No. 2 Hospital, Ningbo, Zhejiang 315010, P.R. China
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18
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Du J, Pfannkuche JJ, Lang G, Häckel S, Creemers LB, Alini M, Grad S, Li Z. Proinflammatory intervertebral disc cell and organ culture models induced by tumor necrosis factor alpha. JOR Spine 2020; 3:e1104. [PMID: 33015577 PMCID: PMC7524256 DOI: 10.1002/jsp2.1104] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/30/2020] [Accepted: 06/01/2020] [Indexed: 12/11/2022] Open
Abstract
Inflammation plays an important role in the pathogenesis of intervertebral disc (IVD) degeneration. The proinflammatory cytokine tumor necrosis factor alpha (TNF-α) has shown markedly higher expression in degenerated human disc tissue compared with healthy controls. Anti-inflammatory treatment targeting TNF-α has shown to alleviate discogenic pain in patients with low back pain. Therefore, in vitro and ex vivo inflammatory models utilizing TNF-α provide relevant experimental conditions for drug development in disc degeneration research. The current method article addressed several specific questions related to the model establishment. (a) The effects of bovine and human recombinant TNF-α on bovine nucleus pulposus (NP) cells were compared. (b) The required dose for an inflammatory IVD organ culture model with intradiscal TNF-α injection was studied. (c) The effect of TNF-α blocking at different stages of inflammation was evaluated. Outcomes revealed that bovine and human recombinant TNF-α induced equivalent inflammatory effects in bovine NP cells. A bovine whole IVD inflammatory model was established by intradiscal injection of 100 ng TNF-α/ cm3 disc volume, as indicated by increased nitric oxide, glycosaminoglycan, interleukin 6 (IL-6), and interleukin 8 (IL-8) release in culture media, and upregulation of MMP3, ADAMTS4, IL-8, IL-6, and cyclooxygenase (COX)-2 expression in NP tissue. However, results in human NP cells showed that the time point of anti-inflammatory treatment was crucial to achieve significant effects. Furthermore, anticatabolic therapy in conjunction with TNF-α inhibition would be required to slow down the pathologic cascade of disc degeneration.
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Affiliation(s)
- Jie Du
- AO Research Institute Davos Davos Switzerland
- Department of Orthopedics University Medical Center Utrecht Utrecht The Netherlands
| | - Judith-J Pfannkuche
- AO Research Institute Davos Davos Switzerland
- Department of Orthopedics and Trauma Surgery Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg Freiburg Germany
| | - Gernot Lang
- Department of Orthopedics and Trauma Surgery Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg Freiburg Germany
| | - Sonja Häckel
- Department of Orthopaedic Surgery and Traumatology, Inselspital Bern University Hospital, University of Bern Bern Switzerland
| | - Laura B Creemers
- Department of Orthopedics University Medical Center Utrecht Utrecht The Netherlands
| | - Mauro Alini
- AO Research Institute Davos Davos Switzerland
| | | | - Zhen Li
- AO Research Institute Davos Davos Switzerland
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19
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Wang L, Gu Y, Zhao H, Chen R, Chen W, Qi H, Gao W. Dioscin Attenuates Interleukin 1β (IL-1β)-Induced Catabolism and Apoptosis via Modulating the Toll-Like Receptor 4 (TLR4)/Nuclear Factor kappa B (NF-κB) Signaling in Human Nucleus Pulposus Cells. Med Sci Monit 2020; 26:e923386. [PMID: 32841225 PMCID: PMC7466834 DOI: 10.12659/msm.923386] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Nucleus pulposus (NP) cell dysfunction and apoptosis contribute to disc degeneration. Dioscin, a natural steroid saponin, has been demonstrated to have anti-inflammatory, antiapoptotic, and antioxidative effects in various diseases. However, little is known about the roles of dioscin in intervertebral disc degeneration. Material/Methods To evaluate the roles of dioscin in disc degeneration and its specific mechanism, human NP cells were incubated with IL-1β and various concentrations of dioscin. Cell viability, extracellular matrix protein expression, catabolic factors, degree of apoptosis, inflammatory factors, and related signaling pathways were evaluated by western blotting, fluorescence immunostaining, TUNEL staining, and reverse transcription PCR. Results Dioscin inhibited IL-1β-activated apoptotic signaling and catabolic activity in NP cells. Dioscin suppressed TLR4/NF-0κB signaling, and attenuated the level of inflammatory mediators (IL-6, TNF-α) in IL-1β-stimulated human NP cells. Conclusions Our work provides the first evidence that dioscin attenuates IL-1β-activated inflammation and catabolic activity in human NP cells through inhibiting the TLR4/NF-κB pathway, indicating that dioscin is a new potential candidate for clinical therapy to attenuate disc degeneration.
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Affiliation(s)
- Longhui Wang
- Department of Orthopedics, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China (mainland)
| | - Yuntao Gu
- Department of Orthopedics, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China (mainland)
| | - Hai Zhao
- Department of Orthopedics, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China (mainland)
| | - Rong Chen
- Department of Orthopedics, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China (mainland)
| | - Wensheng Chen
- Department of Orthopedics, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China (mainland)
| | - Hao Qi
- Department of Orthopedics, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China (mainland)
| | - Weisong Gao
- Department of Orthopedics, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China (mainland)
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20
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Qiu S, Shi C, Anbazhagan AN, Das V, Arora V, Kc R, Li X, O-Sullivan I, van Wijnen A, Chintharlapalli S, Gott-Velis G, Richard R, Mwale F, Shibuya M, Min S, Im HJ. Absence of VEGFR-1/Flt-1 signaling pathway in mice results in insensitivity to discogenic low back pain in an established disc injury mouse model. J Cell Physiol 2020; 235:5305-5317. [PMID: 31875985 PMCID: PMC9782756 DOI: 10.1002/jcp.29416] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 12/16/2019] [Indexed: 12/25/2022]
Abstract
Although degenerative disc disease (DDD) and related low back pain (LBP) are growing public health problems, the underlying disease mechanisms remain unclear. An increase in the vascular endothelial growth factor (VEGF) levels in DDD has been reported. This study aimed to examine the role of VEGF receptors (VEGFRs) in DDD, using a mouse model of DDD. Progressive DDD was induced by anterior stabbing of lumbar intervertebral discs in wild type (WT) and VEGFR-1 tyrosine-kinase deficient mice (vegfr-1TK-/- ). Pain assessments were performed weekly for 12 weeks. Histological and immunohistochemical assessments were made for discs, dorsal root ganglions, and spinal cord. Both vegfr-1TK-/- and WT mice presented with similar pathological changes in discs with an increased expression of inflammatory cytokines and matrix-degrading enzymes. Despite the similar pathological patterns, vegfr-1TK-/- mice showed insensitivity to pain compared with WT mice. This insensitivity to discogenic pain was related to lower levels of pain factors in the discs and peripheral sensory neurons and lower spinal glial activation in the vegfr-1TK- /- mice than in the WT mice. Exogenous stimulation of bovine disc cells with VEGF increased inflammatory and cartilage degrading enzyme. Silencing vegfr-1 by small-interfering-RNA decreased VEGF-induced expression of pain markers, while silencing vegfr-2 decreased VEGF-induced expression of inflammatory and metabolic markers without changing pain markers. This suggests the involvement of VEGFR-1 signaling specifically in pain transmission. Collectively, our results indicate that the VEGF signaling is involved in DDD. Particularly, VEGFR-1 is critical for discogenic LBP transmission independent of the degree of disc pathology.
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Affiliation(s)
- Sujun Qiu
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Changgui Shi
- Department of Orthopedic Surgery, Changzheng Hospital, the Second Military Medical University of China, Shanghai, China
| | | | - Vaskar Das
- Departments of Anesthesiology, Rush University Medical Center, Chicago, IL, United States
| | - Vipin Arora
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Ranjan Kc
- Division of Orthopedic Surgery, the Children's Hospital of Philadelphia Research Institute, Philadelphia, PA, United States
| | - Xin Li
- Department of Bioengineering, University of Illinois at Chicago, IL, United States
| | - InSug O-Sullivan
- Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Andre van Wijnen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, NM, United States
| | | | - Gina Gott-Velis
- Department of Bioengineering, University of Illinois at Chicago, IL, United States
- Departments of Anesthesiology, the University of Illinois at Chicago (UIC), IL, United States
| | - Ripper Richard
- Departments of Anesthesiology, the University of Illinois at Chicago (UIC), IL, United States
| | - Fackson Mwale
- Orthopaedics Research Laboratory, Lady Davis Institute for Medical Research, SMBD-Jewish General Hospital, Montreal, QC, Canada
- Department of Experimental Surgery, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Masabumi Shibuya
- Institute of Physiology and Medicine, Jobu University, Takasaki, Gunma, Japan
| | - Shaoxiong Min
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Hee-Jeong Im
- Department of Bioengineering, University of Illinois at Chicago, IL, United States
- Jesse Brown Veterans Affairs Medical Center (JBVAMC) at Chicago, IL, United States
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21
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He M, Pang J, Sun H, Zheng G, Lin Y, Ge W. Overexpression of TIMP3 inhibits discogenic pain by suppressing angiogenesis and the expression of substance P in nucleus pulposus. Mol Med Rep 2020; 21:1163-1171. [PMID: 31922222 PMCID: PMC7003021 DOI: 10.3892/mmr.2020.10922] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 09/04/2019] [Indexed: 12/11/2022] Open
Abstract
Approximately 50% of the cases of low back pain (LBP) are attributed to discogenic origin. The causes of discogenic pain are complicated and consist of a complex biochemical cascade. Neovascularization of intervertebral discs (IVDs) is believed to be associated with discogenic pain. The anti‑angiogenesis ability of tissue inhibitor of metalloproteinase‑3 (TIMP3) has been reported in many tumors, yet whether TIMP3 is associated with neovascularization of IVDs remains unknown. In the present study, both in vitro and in vivo models were used to investigate the association between discogenic pain and TIMP3 expression in nucleus pulposus (NP). PCR results demonstrated that inflammation induced downregulation of TIMP3 expression in NP cells. By using an adenovirus system to upregulate TIMP3 expression, the effect of TIMP3 on angiogenesis was measured by endothelial cell migration and tube formation assays. The results demonstrated that overexpression of TIMP3 suppressed angiogenesis in NP without the regulation of vascular endothelial growth factor (VEGF) expression. TNF‑α converting enzyme (TACE) expression was downregulated by TIMP3, thus inhibiting the TACE‑induced activation of TNF‑α in NP cells. Immunohistochemical staining of IVDs also confirmed that TIMP3 inhibited the expression of substance P in NP. Taken together, the present results indicated the expression of TIMP3 in NP may have a key role in the development of discogenic pain.
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Affiliation(s)
- Mingwei He
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, P.R. China
| | - Jinlei Pang
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, P.R. China
| | - Haiyan Sun
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, P.R. China
| | - Guanrong Zheng
- Department of Pain, Shengli Oilfield Central Hospital, Dongying, Shandong 257000, P.R. China
| | - Yan Lin
- Department of Pain, Shengli Oilfield Central Hospital, Dongying, Shandong 257000, P.R. China
| | - Weipeng Ge
- Department of Pain, Shengli Oilfield Central Hospital, Dongying, Shandong 257000, P.R. China
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Frapin L, Clouet J, Delplace V, Fusellier M, Guicheux J, Le Visage C. Lessons learned from intervertebral disc pathophysiology to guide rational design of sequential delivery systems for therapeutic biological factors. Adv Drug Deliv Rev 2019; 149-150:49-71. [PMID: 31445063 DOI: 10.1016/j.addr.2019.08.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 08/05/2019] [Accepted: 08/18/2019] [Indexed: 12/20/2022]
Abstract
Intervertebral disc (IVD) degeneration has been associated with low back pain, which is a major musculoskeletal disorder and socio-economic problem that affects as many as 600 million patients worldwide. Here, we first review the current knowledge of IVD physiology and physiopathological processes in terms of homeostasis regulation and consecutive events that lead to tissue degeneration. Recent progress with IVD restoration by anti-catabolic or pro-anabolic approaches are then analyzed, as are the design of macro-, micro-, and nano-platforms to control the delivery of such therapeutic agents. Finally, we hypothesize that a sequential delivery strategy that i) firstly targets the inflammatory, pro-catabolic microenvironment with release of anti-inflammatory or anti-catabolic cytokines; ii) secondly increases cell density in the less hostile microenvironment by endogenous cell recruitment or exogenous cell injection, and finally iii) enhances cellular synthesis of extracellular matrix with release of pro-anabolic factors, would constitute an innovative yet challenging approach to IVD regeneration.
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Elevated expression of hypoxia-inducible factor-2alpha regulated catabolic factors during intervertebral disc degeneration. Life Sci 2019; 232:116565. [PMID: 31251999 DOI: 10.1016/j.lfs.2019.116565] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/11/2019] [Accepted: 06/11/2019] [Indexed: 02/06/2023]
Abstract
HEADINGS AIMS The present study determined whether nucleus pulposus (NP) cells express hypoxia-inducible factor-2alpha (HIF-2α) and assessed its role in regulating the expression of catabolic factors during intervertebral disc degeneration. MATERIALS AND METHODS Human degenerated NP tissues were acquired to examine the HIF-2α expression levels using immunohistochemistry, western blotting, and Real-time PCR. Human NP cells were cultivated under normoxic or hypoxic conditions, and the HIF-2α expression was determined. Then, human NP cells were treated with HIF-2α plasmids, HIF-2α siRNA, and tumor necrosis factor-alpha (TNF-α) to evaluate the role of HIF-2α in regulating matrix metalloproteinase (MMP) and aggrecanase expression. An in vivo rabbit disc degeneration model was established to demonstrate that HIF-2α plays a critical role in disc degeneration. KEY FINDINGS We found that HIF-2α had a markedly elevated expression in human degenerated discs in the Grade III stage. HIF-2α protein and gene transcript levels in vitro were relatively higher under hypoxic conditions. The expression of MMP-13, ADAMTS-4 was decreased significantly in HIF-2α silencing condition, while the over-expression resulted in significantly increased levels of MMP-13 and ADAMTS-4. When cytokine TNF-α was added, HIF-2α was induced by nuclear factor-κB (NF-κB). The in vivo experiments showed that the HIF-2α controlled the catabolic factors MMP-13 and ADAMTS-4 that regulated the collagen II and aggrecan metabolism in disc degeneration. SIGNIFICANCE HIF-2α is a catabolic regulator in disc degeneration and directly controls the catabolic genes. The suppression of HIF-2α expression leads to decelerates extracellular matrix degradation that might represent a therapeutic target for the degenerative disc.
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Haiwen Z, Rui H, Bingxi Z, Qingfeng G, Jifeng Z, Xuemei W, Beibei W. Oral Administration of Bovine Lactoferrin-Derived Lactoferricin (Lfcin) B Could Attenuate Enterohemorrhagic Escherichia coli O157:H7 Induced Intestinal Disease through Improving Intestinal Barrier Function and Microbiota. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:3932-3945. [PMID: 30892034 DOI: 10.1021/acs.jafc.9b00861] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Lactoferricin (Lfcin) B, derived from lactoferrin in whey, has attracted considerable attention because of its multiple biological functions. Zoonotic enterohemorrhagic Escherichia coli (EHEC) O157:H7 has adverse effects on intestinal epithelial barrier function, leading to serious intestinal disease. In this study, the EHEC O157:H7-induced intestinal dysfunction model was developed to investigate the effects of Lfcin B on EHEC O157:H7-induced epithelial barrier disruption and microbiota dysbiosis. Results showed that the inflammatory infiltration indexes in the jejunum of Lfcin B-treated animals were significantly decreased. Lfcin B administration also significantly improved ZO-1 and occludin expression following O157:H7-induced injury. Finally, microbiota analysis of the cecal samples revealed that Lfcin B inhibited the O157:H7-induced abnormal increase in Bacteroides. Therefore, Lfcin B efficiently attenuated O157:H7-induced epithelial barrier damage and dysregulation of inflammation status, while maintaining microbiota homeostasis in the intestine, indicating that it may be an excellent food source for prevention and therapy of EHEC O157:H7-related intestinal dysfunction.
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Affiliation(s)
- Zhang Haiwen
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province , Hainan University , Haikou , Hainan 570228 , People's Republic of China
- Key Laboratory of Tropical Biological Resources of Ministry of Education , Haikou , Hainan 570228 , People's Republic of China
| | - Hua Rui
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province , Hainan University , Haikou , Hainan 570228 , People's Republic of China
| | - Zhang Bingxi
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province , Hainan University , Haikou , Hainan 570228 , People's Republic of China
| | - Guan Qingfeng
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province , Hainan University , Haikou , Hainan 570228 , People's Republic of China
- Key Laboratory of Tropical Biological Resources of Ministry of Education , Haikou , Hainan 570228 , People's Republic of China
| | - Zeng Jifeng
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province , Hainan University , Haikou , Hainan 570228 , People's Republic of China
- Key Laboratory of Tropical Biological Resources of Ministry of Education , Haikou , Hainan 570228 , People's Republic of China
| | - Wang Xuemei
- Key Laboratory of Tropical Animal Breeding and Epidemic Disease Research of Hainan Province , Hainan University , Haikou , Hainan 570228 , People's Republic of China
- Key Laboratory of Tropical Biological Resources of Ministry of Education , Haikou , Hainan 570228 , People's Republic of China
| | - Wang Beibei
- Key Laboratory of Tropical Biological Resources of Ministry of Education , Haikou , Hainan 570228 , People's Republic of China
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Potential therapeutic role of Co-Q10 in alleviating intervertebral disc degeneration and suppressing IL-1β-mediated inflammatory reaction in NP cells. Int Immunopharmacol 2018; 64:424-431. [PMID: 30261465 DOI: 10.1016/j.intimp.2018.09.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 08/13/2018] [Accepted: 09/19/2018] [Indexed: 12/24/2022]
Abstract
Coenzyme Q10 (Co-Q10) is extraordinarily popular and has been used in abundant interventions as an antioxidant reagent that participates in numerous oxidation reactions. According to substantial evidence previously reported, interleukin-1β (IL-1β) is deemed to be one of the chief orchestrator molecules in the degeneration of intervertebral disc (IVD). However, it is unknown whether Co-Q10 is able to protect against IVD degeneration. In the current study, mouse-derived IVDs as well as primary human nucleus pulposus (NP) cells were isolated and cultured. NP cells were stimulated with IL-1β, with or without selective addition of Co-Q10 to investigate the therapeutic effect of Co-Q10 on IVD degeneration. Levels of IL-1β-induced inflammatory biomarkers including TNF-α, COX-2, IL-6 and iNOS were reduced by Co-Q10, which was possibly associated with inhibition of NF-κB signaling activation. Furthermore, Co-Q10 maintained the production of anabolic biomarkers in NP cells such as collagen 2, aggrecan and Sox-9 and altered the enhanced catabolism induced by IL-1β. Moreover, the therapeutic role of Co-Q10 in sustaining IVD tissue-enhanced anabolism is potentially dependent on activation of the Akt signaling pathway. In summary, Co-Q10 may potentially represent an available molecular target that may shed light on approaches to the prevention and treatment of IVD degeneration in the future.
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Low back pain and disc degeneration are decreased following chronic toll-like receptor 4 inhibition in a mouse model. Osteoarthritis Cartilage 2018; 26:1236-1246. [PMID: 29908959 DOI: 10.1016/j.joca.2018.06.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 05/30/2018] [Accepted: 06/01/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Intervertebral disc degeneration is a leading cause of chronic low back pain (LBP) but current treatment is limited. Toll-like receptors (TLRs) on disc cells are activated by endogenous extracellular matrix (ECM) fragments and modulate degeneration in vitro. This study investigated whether inhibiting TLR4 slows disc degeneration and reduces behavioral signs of LBP in vivo. DESIGN 7-9-month old wild-type and secreted protein acidic and rich in cysteine (SPARC)-null (a model of disc degeneration and LBP) male mice were treated with TAK-242 (TLR4 inhibitor) once, and following a 10-day washout, mice were treated 3 times/week for 8 weeks. Behavioral signs of axial discomfort and radiating leg pain were assessed weekly with the grip force assay and acetone test, respectively. Following treatment, pain-related spinal cord changes were evaluated and lumbar discs were excised and cultured. Cytokine secretion from discs was evaluated with protein arrays. RESULTS SPARC-null mice displayed elevated signs of axial and radiating pain at baseline compared to wild-type. Chronic, but not acute, TLR4 inhibition reduced behavioral signs of pain compared to vehicle. SPARC-null mice have increased calcitonin gene-related peptide (CGRP)- and glial fibrillary acidic protein (GFAP)-immunoreactivity (astrocyte marker) in the dorsal horn compared to wild-type, which is reduced by chronic TLR4 inhibition. Ex vivo degenerating discs from SPARC-null mice secrete increased levels of many pro-inflammatory cytokines, which chronic TLR4 inhibition reduced. CONCLUSION Chronic TLR4 inhibition decreased behavioral signs of LBP, pain-related neuroplasticity and disc inflammation in SPARC-null mice. TAK-242 inhibits TLR4 activation within discs, as evidenced by decreases in cytokine release. Therefore, TLRs are potential therapeutic targets to slow disc degeneration and reduce pain.
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Photobiomodulation of extracellular matrix enzymes in human nucleus pulposus cells as a potential treatment for intervertebral disk degeneration. Sci Rep 2018; 8:11654. [PMID: 30076336 PMCID: PMC6076240 DOI: 10.1038/s41598-018-30185-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 07/24/2018] [Indexed: 12/18/2022] Open
Abstract
Intervertebral disc (IVD) degeneration is associated with imbalances between catabolic and anabolic responses, regulated by extracellular matrix (ECM)-modifying enzymes such as matrix metalloproteinases (MMPs) and their endogenous tissue inhibitors of metalloproteinases (TIMPs). Potential contributing factors, such as interleukin (IL)-1β and tumor necrosis factor (TNF)-α, derived from infiltrated, activated macrophages within IVD tissues, can trigger abnormal production of ECM-modifying enzymes and progression of IVD degeneration. Novel therapies for regulating ECM-modifying enzymes can prevent or ameliorate IVD degeneration. Photobiomodulation (PBM), known to regulate wound repair, exhibits regenerative potential by modulating biological molecules. This study examined the effects of PBM, administered at various wavelengths (630, 525, and 465 nm) and energy densities (16, 32, and 64 J/cm2), on the production of ECM-modifying enzymes in replicated degenerative IVD. Our results showed that PBM selectively inhibited the production of ECM-modifying enzymes in a dose- and wavelength-dependent manner, suggesting that it could be a novel tool for treating symptomatic IVD degeneration.
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28
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Li K, Li Y, Mi J, Mao L, Han X, Zhao J. Resveratrol protects against sodium nitroprusside induced nucleus pulposus cell apoptosis by scavenging ROS. Int J Mol Med 2018; 41:2485-2492. [PMID: 29436588 PMCID: PMC5846644 DOI: 10.3892/ijmm.2018.3461] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 01/10/2018] [Indexed: 01/07/2023] Open
Abstract
Oxidative stress induced disc cell apoptosis plays an important role in intervertebral disc (IVD) degeneration. The present study aims to investigate effects of resveratrol (RV), a natural polyphenol compound, on sodium nitroprusside (SNP) induced nucleus pulposus (NP) cell apoptosis and related mechanism. Rat NP cells were pretreated with RV, N-acetyl cysteine (NAC) and carboxy-PTIO (PTIO) before SNP treatment. Cell Counting Kit-8 assay was carried out for cell viability evaluation. Annexin V/propidium iodide (PI), Hoechst 33258 and Actin‑Tracker Green and Tubulin-Tracker Red staining were conducted to detect NP cell apoptosis and apoptotic structural changes. Mitochondrial membrane potential (ΔΨm) was analyzed with tetramethylrhodamine methyl ester staining. DCFH-DA and DAF-FM DA staining was used to determine intracellular reactive oxygen species (ROS) and nitric oxide (NO) levels. An ex vivo experiment was also carried out followed by TUNEL assay of sections of discs. SNP induced NP cell apoptosis, excessive production of intracellular ROS and NO, reduction of ΔΨm as well as disruption of cytoskeletal and morphological structure. Meanwhile, organ culture results showed that SNP induced NP cell apoptosis ex vivo. RV and NAC siginificantly inhibited SNP induced NP cell apoptosis, production of intracellular ROS, deline of ΔΨm as well as disruption of cytoskeletal and morphological structure, while RV did not suppress NO production. RV and NAC could also suppress SNP induced NP cell apoptosis ex vivo. However, PTIO did not prevent SNP induced NP cell apoptosis, though it scavenged NO significantly. In conclusion, RV protects against SNP induced NP cell apoptosis by scavenging ROS but not NO, suggesting a promising prospect of RV in IVD degeneration retardation.
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Affiliation(s)
- Kang Li
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Yan Li
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Jie Mi
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Lu Mao
- Spine Center, Zhongda Hospital, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Xiuguo Han
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
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Zheng Y, Liu C, Ni L, Liu Z, Mirando AJ, Lin J, Saijilafu, Chen D, Hilton MJ, Li B, Chen J. Cell type-specific effects of Notch signaling activation on intervertebral discs: Implications for intervertebral disc degeneration. J Cell Physiol 2018; 233:5431-5440. [PMID: 30025440 DOI: 10.1002/jcp.26385] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 11/29/2017] [Indexed: 01/03/2023]
Abstract
Intervertebral disc (IVD) degeneration is the major cause of back pain. Notch signaling is activated in annulus fibrosus (AF) and nucleus pulposus (NP) tissues of degenerated IVDs, and induced by IL1-β and TNF-α in NP cells. However, the role of Notch activatin in the pathogenesis of IVD degeneration is largely unknown. In this study, we overexpressed the Notch1 intracellular domain (NICD1) in AF, NP, and chondrogenic ATDC5 cells via adenoviruses. Overexpression of NICD1 activated transcription of Notch signaling target genes in AF, NP, and ATDC5 cells, and caused cell type-specific effects on expression of matrix anabolic and catabolic genes. Activation of Notch signaling promoted expression of matrix catabolic genes and inhibited expression of matrix anabolic genes in both AF and ATDC5 cells, whereas its activation suppressed expression of matrix catabolic genes (including Mmp3, Mmp13, Adamts4, and Adamts5) and attenuated TNF-α and inflammatory macrophage-induced Mmp13 expression in NP cells. Consistently, sustained activation of Notch1 signaling in postnatal IVDs in mice severely disrupted growth plate and endplate cartilage tissues, but did not overly affect NP tissues. Together, these data indicated that activation of Notch signaling exerted differential and cell type-specific effects in intervertebral discs, and specific Notch signaling regulation may be considered during the treatment of IVD degeneration.
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Affiliation(s)
- Yixin Zheng
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China.,Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Cunchang Liu
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China.,Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Li Ni
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China.,Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Zhaoyang Liu
- Department of Orthopaedics and Rehabilitation, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York
| | - Anthony J Mirando
- Department of Orthopaedic Surgery, Duke Orthopaedic Cellular, Developmental, and Genome Laboratories, Duke University School of Medicine, Durham, North Carolina
| | - Jun Lin
- Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Saijilafu
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China.,Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Di Chen
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Matthew J Hilton
- Department of Orthopaedic Surgery, Duke Orthopaedic Cellular, Developmental, and Genome Laboratories, Duke University School of Medicine, Durham, North Carolina
| | - Bin Li
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China.,Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Jianquan Chen
- Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China.,Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
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30
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Aly E, López-Nicolás R, Darwish AA, Ros-Berruezo G, Frontela-Saseta C. In vitro effectiveness of recombinant human lactoferrin and its hydrolysate in alleviating LPS-induced inflammatory response. Food Res Int 2017; 118:101-107. [PMID: 30898345 DOI: 10.1016/j.foodres.2017.12.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 12/08/2017] [Accepted: 12/12/2017] [Indexed: 12/27/2022]
Abstract
This study aimed to evaluate the potential anti-inflammatory role of the most produced form of lactoferrin expressed in various expression systems (Fe-saturated recombinant human Lf, rhLf) and its hydrolysate in concentrations resembles that found in mature human milk. Co-culture model consisted of CaCo-2 and RAW 246.7 cell lines was used to evaluate the potential anti-inflammatory activity of rhLf and its hydrolysate. During this experiment, CaCo-2 monolayer permeability and integrity was assayed through the measurement of transepithelial electrical resistance (TEER values). Also, the production of reactive oxygen species (ROS), nitric oxide (NO) and different cytokines (IL-8, IL-1β, IL-6, IL-10, IL-12p70, and TNF-α) were measured. The treatment with rhLf and its hydrolysate protected the monolayer integrity against LPS effect and reduced IL-8 and ROS production. This effect was dependent on the dose and 2mgmL-1 of rhLf hydrolysate was more effective. The addition of rhLf and its hydrolysate to infant formula is a prominent step towards improving both infant formula functionality and newborn health. Thus, these functional ingredients could be incorporated in infant foods. In this context, ongoing researches are conducted to clarify this effect whether by using synthetic peptides or by using LPS-sepsis animal.
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Affiliation(s)
- Esmat Aly
- Food Science and Nutrition Dept., Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100 Espinardo, Spain; Special Food and Nutrition Dept., Food Technology Research Institute (FTRI), Agricultural Research Center (ARC), 12619 Giza, Egypt
| | - Rubén López-Nicolás
- Food Science and Nutrition Dept., Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100 Espinardo, Spain
| | - Aliaa Ali Darwish
- Dairy Technology Research Dept., Food Technology Research Institute (FTRI), Agricultural Research Center (ARC), 12619 Giza, Egypt
| | - Gaspar Ros-Berruezo
- Food Science and Nutrition Dept., Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100 Espinardo, Spain
| | - Carmen Frontela-Saseta
- Food Science and Nutrition Dept., Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100 Espinardo, Spain.
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Ding H, Wei J, Zhao Y, Liu Y, Liu L, Cheng L. Progranulin derived engineered protein Atsttrin suppresses TNF-α-mediated inflammation in intervertebral disc degenerative disease. Oncotarget 2017; 8:109692-109702. [PMID: 29312639 PMCID: PMC5752552 DOI: 10.18632/oncotarget.22766] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 10/29/2017] [Indexed: 01/23/2023] Open
Abstract
Atsttrin, an engineered molecule composed of three fragments of progranulin(PGRN), exerts comparable anti-inflammation ability. Intervertebral disc degeneration (IDD) is involved in inflammation in which TNF-α plays a key role. This study aims to examine the effect and the mechanism of Atsttrin in the pathogenesis of intervertebral disc degeneration. For this purpose, we took advantage of murine and human intervertebral disc (IVD) and examined the expression of TNF-α in IVD tissues using immunohistochemistry and TNF-α level in peripheral sera by ELISA assay. Moreover, murine IVD was taken to undergo the Safranin O and HE staining. Furthermore, primary human nucleus pulposus cells were used for immunohistochemistry staining, fluorescent staining, Western Blot, ELISA assay and RT-PCR assay. Herein we found TNF-α expression was elevated in intervertebral disc and peripheral sera in patients with IDD. Interestingly, Atsttrin effectively inhibited TNF-α-mediated catabolism in murine disc by ex vivo study. TNF-α-induced inflammatory cytokines were strongly reduced in presence of Atsttrin in primary human disc. Mechanism study indicated Atsttrin protected against intervertebral disc degeneration by inhibiting TNF-α-induced inflammation. These findings show that Atsttrin is a potential molecular target for disc degenerative diseases.
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Affiliation(s)
- Hong Ding
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, China
| | - Jianlu Wei
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, China
| | - Yunpeng Zhao
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, China
| | - Yi Liu
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, China
| | - Lian Liu
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, China
| | - Lei Cheng
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, China
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Aker L, Ghannam M, Alzuabi MA, Jumah F, Alkhdour SM, Mansour S, Samara A, Cronk K, Massengale J, Holsapple J, Adeeb N, Oskouian RJ, Tubbs RS. Molecular Biology and Interactions in Intervertebral Disc Development, Homeostasis, and Degeneration, with Emphasis on Future Therapies: A Systematic Review. ACTA ACUST UNITED AC 2017. [DOI: 10.26632/ss.3.2017.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Li W, Wu X, Qu R, Wang W, Chen X, Cheng L, Liu Y, Guo L, Zhao Y, Liu C. Ghrelin protects against nucleus pulposus degeneration through inhibition of NF-κB signaling pathway and activation of Akt signaling pathway. Oncotarget 2017; 8:91887-91901. [PMID: 29190883 PMCID: PMC5696149 DOI: 10.18632/oncotarget.19695] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 06/27/2017] [Indexed: 12/11/2022] Open
Abstract
The objective of the present study was to examine the potential role of ghrelin in degeneration of nucleus pulposus (NP). Lower expression levels of ghrelin were found in human NP cells stimulated with interleukin-1β (IL-1β). Moreover, exogenous ghrelin suppressed IL-1β induced degeneration and inflammation associated biomarkers in human NP cells, including matrix metalloproteinase-13, a disintegrin and metalloproteinase with thrombospondin motifs-5, tumor necrosis factor-α and iNOS, which was possibly mediated by antagonization of NF-κB signaling. Moreover, ghrelin enhanced production of critical extracellular matrix of NP cells, including collagen 2, aggrecan, and Sox-9 in NP cells. Ghrelin also promoted NP tissue regeneration in a rabbit IVD degeneration model, which seems to be associated with growth hormone secretagogue receptor. Additionally, the protective role of ghrelin in anabolism potentially relies on activation of Akt signaling pathway. Taken together, ghrelin may represent a molecular target for prevention and treatment of intervertebral disc degeneration.
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Affiliation(s)
- Weiwei Li
- Department of Pathology, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Xihai Wu
- Department of Gynaecology and Obstetrics, Jinan Central Hospital, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Ruize Qu
- Medical School of Shandong University, Jinan, Shandong 250012, P. R. China
| | - Wenhan Wang
- Medical School of Shandong University, Jinan, Shandong 250012, P. R. China
| | - Xiaomin Chen
- Medical School of Shandong University, Jinan, Shandong 250012, P. R. China
| | - Lei Cheng
- Department of Orthopaedics, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Yaoge Liu
- Medical School of Shandong University, Jinan, Shandong 250012, P. R. China
| | - Linlin Guo
- Medical School of Shandong University, Jinan, Shandong 250012, P. R. China
| | - Yunpeng Zhao
- Department of Orthopaedics, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Chao Liu
- Department of Oral and Maxillofacial Surgery and Institute of Dental Medicine, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P. R. China
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Chen B, Wang HT, Yu B, Zhang JD, Feng Y. Carthamin yellow inhibits matrix degradation and inflammation induced by LPS in the intervertebral disc via suppression of MAPK pathway activation. Exp Ther Med 2017; 14:1614-1620. [PMID: 28810627 PMCID: PMC5525633 DOI: 10.3892/etm.2017.4645] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 06/02/2017] [Indexed: 12/21/2022] Open
Abstract
Carthamin yellow (CY), which is a flavonoid compound isolated from safflower, has various pharmacological effects including promoting blood circulation to remove blood stasis and alleviating pain. CY is a herb used in Chinese traditional medicines. Intervertebral disc degeneration (IDD) is a common spinal disorder and degeneration of nucleus pulposus (NP) cells and inflammation are significant parts of the pathological cascade. The curative effect of CY on NP cells in association with degeneration and inflammation remains to be elucidated. In the present study, rat NP cells were isolated, cultured and used to detect the suppressive effects of CY on lipopolysaccharide (LPS)-induced genetic expression variation and the expression of matrix degradation enzymes, including matrix metallopeptidase-3, ADAM metallopeptidase with thrombospondin type 1 motif (ADAMTS)-4 and ADAMTS-5. A protective effect of CY on NP cells was observed against LPS-induced matrix degradation and inflammation. Western blotting results demonstrated that pretreatment with CY significantly suppressed the LPS-induced activation of the mitogen activated protein kinase (MAPK) pathway. The results of the present study suggested that CY exerted anti-degenerative and anti-inflammatory effects on NP cells via inhibition of MAPK pathway activation. Therefore, CY may be a potential therapeutic drug for the treatment of IDD in the future.
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Affiliation(s)
- Bin Chen
- Department of Orthopaedic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Han-Tao Wang
- Department of Orthopaedic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Bo Yu
- Department of Orthopaedic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Ji-Dong Zhang
- Department of Orthopaedic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Yu Feng
- Department of Orthopaedic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
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You JS, Cho IA, Kang KR, Oh JS, Yu SJ, Lee GJ, Seo YS, Kim SG, Kim CS, Kim DK, Im HJ, Kim JS. Coumestrol Counteracts Interleukin-1β-Induced Catabolic Effects by Suppressing Inflammation in Primary Rat Chondrocytes. Inflammation 2017; 40:79-91. [PMID: 27709316 DOI: 10.1007/s10753-016-0455-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the present study, we investigated the anti-catabolic effects of coumestrol, a phytoestrogen derived from herbal plants, against interleukin-1β-induced cartilage degeneration in primary rat chondrocytes and articular cartilage. Coumestrol did not affect the viability of human normal oral keratinocytes and primary rat chondrocytes treated for 24 h and 21 days, respectively. Although coumestrol did not significantly increase the proteoglycan contents in long-term culture, it abolished the interleukin-1β-induced loss of proteoglycans in primary rat chondrocytes and knee articular cartilage. Furthermore, coumestrol suppressed the expression of matrix-degrading enzymes such as matrix metalloproteinase-13, -3, and -1 in primary rat chondrocytes stimulated with interleukin-1β. Moreover, the expression of catabolic factors such as nitric oxide synthase, cyclooxygenase-2, prostaglandin E2, and inflammatory cytokines in interleukin-1β-stimulated primary rat chondrocytes was suppressed by coumestrol. In summary, these results indicate that coumestrol counteracts the catabolic effects induced by interleukin-1β through the suppression of inflammation. Therefore, based on its biological activity and safety profile, coumestrol could be used as a potential anti-catabolic biomaterial for osteoarthritis.
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Affiliation(s)
- Jae-Seek You
- Department of Oral and Maxillofacial Surgery, Chosun University, Gwangju, 61452, Republic of Korea
| | - In-A Cho
- Department of Oral and Maxillofacial Surgery, Chosun University, Gwangju, 61452, Republic of Korea
| | - Kyeong-Rok Kang
- Department of Oral and Maxillofacial Surgery, Chosun University, Gwangju, 61452, Republic of Korea
| | - Ji-Su Oh
- Department of Oral and Maxillofacial Surgery, Chosun University, Gwangju, 61452, Republic of Korea
| | - Sang-Joun Yu
- Department of Periodontology, Chosun University, Gwangju, 61452, Republic of Korea
| | - Gyeong-Je Lee
- Department of Prosthodontics, Chosun University, Gwangju, 61452, Republic of Korea
| | - Yo-Seob Seo
- Department of Oral and Maxillofacial Radiology, Chosun University, Gwangju, 61452, Republic of Korea
| | - Su-Gwan Kim
- Department of Oral and Maxillofacial Surgery, Chosun University, Gwangju, 61452, Republic of Korea
| | - Chun Sung Kim
- Pre-Dentistry,School of Dentistry, Chosun University, 309 Philmun-daero, Dong-gu, Gwangju, 61452, Republic of Korea
| | - Do Kyung Kim
- Pre-Dentistry,School of Dentistry, Chosun University, 309 Philmun-daero, Dong-gu, Gwangju, 61452, Republic of Korea
| | - Hee-Jeong Im
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Jae-Sung Kim
- Pre-Dentistry,School of Dentistry, Chosun University, 309 Philmun-daero, Dong-gu, Gwangju, 61452, Republic of Korea.
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Ye Y, Zhang C, Zhu K, Xu G, Han Z, Le Y. [Effect of Melittin on collagen type II expression of rat endplate chondrocytes induced by interleukin 1β]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2017; 31:345-350. [PMID: 29806266 DOI: 10.7507/1002-1892.201609062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To observe the effect of Melittin on collagen type II (Col-II) expression of rat endplate chondrocytes (EPCs) induced by interleukin 1β (IL-1β). Methods Primary EPCs from the lumbar vertebra of 4-week-old Sprague Dawley rats were cultured in vitro and identified by morphological observation, toluidine blue staining and Col-II immunofluorescence staining. Then, MTT assay was used to determine the optimal concentration of IL-1 and Melittin. Next, EPCs at passage 3 were randomly divided into 4 groups: no treatment was done in group A as control group; the optimal concentration of IL-1β, Melittin, and both IL-1β and Melittin were used in groups B, C, and D respectively. The expression of Col-II was detected by Western blot after 48 hours intervention. Results Under inverted microscope, the first generation EPCs were polygonal; cell proliferation decreased after fifth generation, and cell morphology changed into fusiform. The acidic mucosubstance in the cytoplasm (such as Aggrecan) was stained dark blue by toluidine blue. After marking Col-II by immunofluorescence, the positive expression of cytoskeleton (green fluorescence) could be observed. MTT assay showed that IL-1β and Melittin could inhibit the EPCs in a dose-dependent manner after intervention of 24 and 48 hours, and the optimal concentrations of IL-1β and Melittin intervention were 10 ng/mL and 1.0 μg/mL respectively. Compared with group A, the expression of Col-II was significantly reduced in group B, and was significantly increased in group C by Western blot assay, but there was no significant difference between group D and group A. The Col-II expression levels of groups A, B, C, and D were 0.991±0.024, 0.474±0.127, 1.913±0.350, and 1.159±0.297 respectively, showing significant difference between the other groups ( P<0.05) except between group A and group D ( P>0.05). Conclusion Melittin has a protective effect on endplate cartilage, and the research results provide experimental basis for the prevention and treatment of spinal degenerative disease.
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Affiliation(s)
- Yuchen Ye
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu Anhui, 233030, P.R.China
| | - Changchun Zhang
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu Anhui, 233030,
| | - Kun Zhu
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu Anhui, 233030, P.R.China
| | - Gang Xu
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu Anhui, 233030, P.R.China
| | - Zhongbing Han
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu Anhui, 233030, P.R.China
| | - Yi Le
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu Anhui, 233030, P.R.China
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Ghannam M, Jumah F, Mansour S, Samara A, Alkhdour S, Alzuabi MA, Aker L, Adeeb N, Massengale J, Oskouian RJ, Tubbs RS. Surgical anatomy, radiological features, and molecular biology of the lumbar intervertebral discs. Clin Anat 2017; 30:251-266. [PMID: 27997062 DOI: 10.1002/ca.22822] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 12/04/2016] [Indexed: 01/07/2023]
Abstract
The intervertebral disc (IVD) is a joint unique in structure and functions. Lying between adjacent vertebrae, it provides both the primary support and the elasticity required for the spine to move stably. Various aspects of the IVD have long been studied by researchers seeking a better understanding of its dynamics, aging, and subsequent disorders. In this article, we review the surgical anatomy, imaging modalities, and molecular biology of the lumbar IVD. Clin. Anat. 30:251-266, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Malik Ghannam
- An-Najah National University Hospital, Nablus, Palestine
| | - Fareed Jumah
- An-Najah National University Hospital, Nablus, Palestine
| | - Shaden Mansour
- An-Najah National University Hospital, Nablus, Palestine
| | - Amjad Samara
- An-Najah National University Hospital, Nablus, Palestine
| | - Saja Alkhdour
- An-Najah National University Hospital, Nablus, Palestine
| | | | - Loai Aker
- An-Najah National University Hospital, Nablus, Palestine
| | - Nimer Adeeb
- Department of Neurosurgery, Boston Medical Center, Boston University, Massachusetts
| | - Justin Massengale
- Department of Neurosurgery, Boston Medical Center, Boston University, Massachusetts
| | | | - R Shane Tubbs
- Department of Anatomical Sciences, St. George's University, Grenada.,Seattle Science Foundation, Seattle, Washington
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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: 56] [Impact Index Per Article: 7.0] [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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40
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Oh JS, Cho IA, Kang KR, You JS, Yu SJ, Lee GJ, Seo YS, Kim CS, Kim DK, Kim SG, Seo YW, Im HJ, Kim JS. Biochanin-A antagonizes the interleukin-1β-induced catabolic inflammation through the modulation of NFκB cellular signaling in primary rat chondrocytes. Biochem Biophys Res Commun 2016; 477:723-730. [PMID: 27363337 DOI: 10.1016/j.bbrc.2016.06.126] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 06/25/2016] [Indexed: 10/21/2022]
Abstract
Biochanin-A, a phytoestrogen derived from herbal plants, protected from the IL-1β-induced loss of proteoglycans through the suppression of matrix degrading enzymes such as matrix metalloproteinase (MMP)-13, MMP-3, MMP-1, and ADAMTS-5 in primary rat chondrocytes and the knee articular cartilage. It also suppressed the expression of IL-1β-induced catabolic factors such as nitric oxide synthase 2, cyclooxygenase-2, prostaglandin E2, and inflammatory cytokines. Furthermore, biochanin-A suppressed the IL-1β-induced phosphorylation of NFκB, and inhibited its nuclear translocation in primary rat chondrocytes. These results indicate that biochanin-A antagonizes the IL-1β-induced catabolic effects through its anti-inflammatory activity that involves the modulation of NFκB signaling.
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Affiliation(s)
- Ji-Su Oh
- Department of Oral and Maxillofacial Surgery, Chosun University, Gwangju, 61452, Republic of Korea
| | - In-A Cho
- Department of Dental Bioengineering, Chosun University, Gwangju, 61452, Republic of Korea
| | - Kyeong-Rok Kang
- Department of Dental Bioengineering, Chosun University, Gwangju, 61452, Republic of Korea
| | - Jae-Seek You
- Department of Oral and Maxillofacial Surgery, Chosun University, Gwangju, 61452, Republic of Korea
| | - Sang-Joun Yu
- Department of Periodontology, Chosun University, Gwangju, 61452, Republic of Korea
| | - Gyeong-Je Lee
- Department of Prosthodontics, Chosun University, Gwangju, 61452, Republic of Korea
| | - Yo-Seob Seo
- Department of Oral and Maxillofacial Radiology, Chosun University, Gwangju, 61452, Republic of Korea
| | - Chun Sung Kim
- Pre-Dentistry, School of Dentistry, Chosun University, Gwangju, 61452, Republic of Korea
| | - Do Kyung Kim
- Pre-Dentistry, School of Dentistry, Chosun University, Gwangju, 61452, Republic of Korea
| | - Su-Gwan Kim
- Department of Oral and Maxillofacial Surgery, Chosun University, Gwangju, 61452, Republic of Korea
| | - Young-Woo Seo
- Korea Basic Science Institute, Gwangju Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Hee-Jeong Im
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Jae-Sung Kim
- Pre-Dentistry, School of Dentistry, Chosun University, Gwangju, 61452, Republic of Korea.
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Bruni N, Capucchio MT, Biasibetti E, Pessione E, Cirrincione S, Giraudo L, Corona A, Dosio F. Antimicrobial Activity of Lactoferrin-Related Peptides and Applications in Human and Veterinary Medicine. Molecules 2016; 21:E752. [PMID: 27294909 PMCID: PMC6273662 DOI: 10.3390/molecules21060752] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 06/03/2016] [Accepted: 06/06/2016] [Indexed: 01/15/2023] Open
Abstract
Antimicrobial peptides (AMPs) represent a vast array of molecules produced by virtually all living organisms as natural barriers against infection. Among AMP sources, an interesting class regards the food-derived bioactive agents. The whey protein lactoferrin (Lf) is an iron-binding glycoprotein that plays a significant role in the innate immune system, and is considered as an important host defense molecule. In search for novel antimicrobial agents, Lf offers a new source with potential pharmaceutical applications. The Lf-derived peptides Lf(1-11), lactoferricin (Lfcin) and lactoferrampin exhibit interesting and more potent antimicrobial actions than intact protein. Particularly, Lfcin has demonstrated strong antibacterial, anti-fungal and antiparasitic activity with promising applications both in human and veterinary diseases (from ocular infections to osteo-articular, gastrointestinal and dermatological diseases).
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Affiliation(s)
- Natascia Bruni
- Istituto Farmaceutico Candioli, Beinasco (To) 10092, Italy.
| | | | - Elena Biasibetti
- Department of Veterinary Sciences, University of Torino, Torino 10095, Italy.
| | - Enrica Pessione
- Department of Life Sciences and Systems Biology, University of Torino, Torino 10123, Italy.
| | - Simona Cirrincione
- Department of Life Sciences and Systems Biology, University of Torino, Torino 10123, Italy.
| | | | | | - Franco Dosio
- Department of Drug Science and Technology, University of Torino, Torino 10125, Italy.
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Li Y, Li K, Mao L, Han X, Zhang K, Zhao C, Zhao J. Cordycepin inhibits LPS-induced inflammatory and matrix degradation in the intervertebral disc. PeerJ 2016; 4:e1992. [PMID: 27190710 PMCID: PMC4867702 DOI: 10.7717/peerj.1992] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 04/09/2016] [Indexed: 01/07/2023] Open
Abstract
Cordycepin is a component of the extract obtained from Cordyceps militaris and has many biological activities, including anti-cancer, anti-metastatic and anti-inflammatory effects. Intervertebral disc degeneration (IDD) is a degenerative disease that is closely related to the inflammation of nucleus pulposus (NP) cells. The effect of cordycepin on NP cells in relation to inflammation and degeneration has not yet been studied. In our study, we used a rat NP cell culture and an intervertebral disc (IVD) organ culture model to examine the inhibitory effects of cordycepin on lipopolysaccharide (LPS)-induced gene expression and the production of matrix degradation enzymes (MMP-3, MMP-13, ADAMTS-4, and ADAMTS-5) and oxidative stress-associated factors (nitric oxide and PGE2). We found a protective effect of cordycepin on NP cells and IVDs against LPS-induced matrix degradation and macrophage infiltration. In addition, western blot and luciferase assay results demonstrated that pretreatment with cordycepin significantly suppressed the LPS-induced activation of the NF-κB pathway. Taken together, the results of our research suggest that cordycepin could exert anti-inflammatory and anti-degenerative effects on NP cells and IVDs by inhibiting the activation of the NF-κB pathway. Therefore, cordycepin may be a potential treatment for IDD in the future.
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Affiliation(s)
- Yan Li
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Kang Li
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Lu Mao
- Spine Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Xiuguo Han
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Kai Zhang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Changqing Zhao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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43
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Lee GJ, Cho IA, Kang KR, Kim DK, Sohn HM, You JW, Oh JS, Seo YS, Yu SJ, You JS, Kim CS, Kim SG, Im HJ, Kim JS. Biological Effects of the Herbal Plant-Derived Phytoestrogen Bavachin in Primary Rat Chondrocytes. Biol Pharm Bull 2016; 38:1199-207. [PMID: 26235583 DOI: 10.1248/bpb.b15-00198] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this study was to examine the anabolic and anticatabolic functions of bavachin in primary rat chondrocytes. With bavachin treatment, chondrocytes survived for 21 d without cell proliferation, and the proteoglycan content and extracellular matrix increased. Short-term monolayer culture of chondrocytes showed that gene induction of both aggrecan and collagen type II, major extracellular matrix components, was significantly upregulated by bavachin. The expression and activities of cartilage-degrading enzymes such as matrix metalloproteinases and a disintegrin and metalloproteinase with thrombospondin motifs were inhibited significantly by bavachin, while tissue inhibitors of metalloprotease were significantly upregulated. Bavachin inhibits the expression of inducible nitric oxide synthase, a representative catabolic factor, and downregulated the expression of nitric oxide, cyclooxygenase-2, and prostaglandin E2 in a dose-dependent manner in chondrocytes. Our results suggest that the bavachin has anabolic and potent anticatabolic biological effects on chondrocytes, which may have considerable promise in treating articular cartilage degeneration in the future.
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Affiliation(s)
- Gyeong-Je Lee
- Department of Prosthodontics, School of Dentistry, Chosun University
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Li Y, Li K, Han X, Mao C, Zhang K, Zhao T, Zhao J. The imbalance between TIMP3 and matrix-degrading enzymes plays an important role in intervertebral disc degeneration. Biochem Biophys Res Commun 2016; 469:507-14. [DOI: 10.1016/j.bbrc.2015.12.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 12/06/2015] [Indexed: 12/31/2022]
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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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Li K, Li Y, Ma Z, Zhao J. Crocin exerts anti-inflammatory and anti-catabolic effects on rat intervertebral discs by suppressing the activation of JNK. Int J Mol Med 2015; 36:1291-9. [PMID: 26648423 PMCID: PMC4601741 DOI: 10.3892/ijmm.2015.2359] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 09/17/2015] [Indexed: 12/15/2022] Open
Abstract
As intervertebral disc (IVD) degeneration has been proven to contribute to low back pain (LBP), drug treatment aiming at attenuating IVD degeneration may prove to be benefiical. Crocin, a bioactive component of saffron, has been found to exert anti-inflammatory effects on cartilage. In the present study, the anti-inflammatory and anti-catabolic effects of crocin on rat IVDs were analyzed in vitro and ex vivo. Nucleus pulposus (NP) cells were isolated from the lumbar IVDs of Sprague-Dawley rats. The NP cells were first treated with various concentrations of crocin, and then stimulated with lipopolysaccharide (LPS) to induce inflammation. Subsequently, RT-qPCR and enzyme-linked immunosorbent assay were carried out to measure the expression levels of catabolic enzymes, pro-inflammatory factors and the components of the extracellular matrix (ECM). In addition, western blot analysis was also used to investigate the related signaling pathways. The whole spinal motion segment (vertebra-IVD-vertebra section) of the rats was isolated and cultured in the presence or absence of LPS and crocin for 7 days. The ex vivo effects of crocin on the ECM of the IVD structures were determined by histological and biochemical analysis. In vitro, crocin significantly inhibited the LPS-induced overexpression of catabolic enzymes [matrix metalloproteinase (MMP)-1, MMP-3, MMP-13, a disintegrin-like and metalloprotease (reprolysin type) with thrombospondin type 1 motif (ADAMTS)-4 and ADAMTS‑5], pro-inflammatory factors [interleukin (IL)-1β, tumor necrosis factor (TNF)-α, IL-6 and inducible nitric oxide synthase (iNOS)] and Toll-like receptor (TLR)‑2 in a concentration-dependent manner. Notably, crocin partly prevented the downregulation of aggrecan and type II collagen (collagen‑II). Moreover, crocin suppressed the LPS-induced activation of the mitogen-activated protein kinase (MAPK) pathway by inhibiting the phosphorylation of c-Jun N-terminal kinase (JNK). Ex vivo experiments demonstrated that crocin protected the rat IVDs from the LPS-induced depletion of the ECM components, including proteoglycan and collagen-II. In conclusion, crocin effectively suppressed the degeneration-related inflammation and catabolism in rat IVDs in vitro and ex vivo, suggesting that crocin has potential for use as a therapuetic strategy in the treatment of LBP.
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Affiliation(s)
- Kang Li
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Yan Li
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Zhenjiang Ma
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
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47
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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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48
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Kc R, Voigt R, Li X, Forsyth CB, Ellman MB, Summa KC, Turek FW, Keshavarzian A, Kim JS, Im HJ. Induction of Osteoarthritis-like Pathologic Changes by Chronic Alcohol Consumption in an Experimental Mouse Model. Arthritis Rheumatol 2015; 67:1678-80. [PMID: 25708245 DOI: 10.1002/art.39090] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 01/31/2015] [Accepted: 02/19/2015] [Indexed: 12/19/2022]
Affiliation(s)
- Ranjan Kc
- Rush University Medical Center, Chicago, IL
| | | | - Xin Li
- Rush University Medical Center, Chicago, IL
| | | | - Michael B Ellman
- Rush University Medical Center, Chicago, IL.,Panorama Orthopedics, Denver, CO
| | | | | | - Ali Keshavarzian
- Rush University Medical Center, Chicago, IL.,Utrecht University, Utrecht, The Netherlands
| | | | - Hee-Jeong Im
- Rush University Medical Center, Chicago, IL.,University of Illinois, Chicago, IL
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49
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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: 134] [Impact Index Per Article: 14.9] [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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50
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Feng G, Chen H, Li J, Huang Q, Gupte MJ, Liu H, Song Y, Ge Z. Gene therapy for nucleus pulposus regeneration by heme oxygenase-1 plasmid DNA carried by mixed polyplex micelles with thermo-responsive heterogeneous coronas. Biomaterials 2015; 52:1-13. [PMID: 25818409 DOI: 10.1016/j.biomaterials.2015.02.024] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 01/28/2015] [Accepted: 02/01/2015] [Indexed: 02/05/2023]
Abstract
Safe and high-efficiency gene therapy for nucleus pulposus (NP) regeneration was urgently desired to treat disc degeneration-associated diseases. In this work, an efficient nonviral cationic block copolymer gene delivery system was used to deliver therapeutic plasmid DNA (pDNA), which was prepared via complexation between the mixed cationic block copolymers, poly(ethylene glycol)-block-poly{N-[N-(2-aminoethyl)-2-aminoehtyl]aspartamide} [PEG-b-PAsp(DET)] and poly(N-isopropylacrylamide)-block-PAsp(DET) [PNIPAM-b-PAsp(DET)], and pDNA at 25 °C. The mixed polyplex micelles (MPMs) containing heterogeneous coronas with hydrophobic and hydrophilic microdomains coexisting could be obtained upon heating from 25 to 37 °C, which showed high tolerability against nuclease and strong resistance towards protein adsorption. The gene transfection efficiency of MPMs in NP cells was significantly higher than that of regular polyplex micelles prepared from sole block copolymer of PEG-b-PAsp(DET) (SPMs) in in vitro and in vivo evaluation due to the synergistic effect of improved colloidal stability and low cytotoxicity. High expression of heme oxygenase-1 (HO-1) in NP cells transfected by MPMs loading HO-1 pDNA significantly decreased the expression activity of matrix metalloproteinases 3 (MMP-3) and cyclo-oxygenase-2 (COX-2) induced by interleukin-1β (IL-1β), and simultaneously increased the NP phenotype-associated genes such as aggrecan, type II collagen, and SOX-9. Moreover, the therapeutic effects of MPMs loading pDNA were tested to treat disc degeneration induced by stab injury. The results demonstrated that administration of HO-1 pDNA carried by MPMs in rat tail discs apparently reduced inflammatory responses induced by need stab and increased glycosaminoglycan (GAG) content, finally achieving better therapeutic efficacy as compared with SPMs. Consequently, MPMs loading HO-1 pDNA were demonstrated to be potential as a safe and high-efficiency nonviral gene delivery system for retarding or regenerating the degenerative discs.
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Affiliation(s)
- Ganjun Feng
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hongying Chen
- Technology Center for Public Research, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Junjie Li
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Qiang Huang
- Technology Center for Public Research, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Melanie J Gupte
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Hao Liu
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yueming Song
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhishen Ge
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
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