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Zhang P, He J, Gan Y, Shang Q, Chen H, Zhao W, Shen G, Jiang X, Ren H. Plastrum testudinis Ameliorates Oxidative Stress in Nucleus Pulposus Cells via Downregulating the TNF-α Signaling Pathway. Pharmaceuticals (Basel) 2023; 16:1482. [PMID: 37895953 PMCID: PMC10610230 DOI: 10.3390/ph16101482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/05/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
BackgroundPlastrum testudinis (PT), a widely used traditional Chinese medicine, exerts protective effects against bone diseases such as intervertebral disc degeneration (IDD). Despite its effectiveness, the molecular mechanisms underlying the effects of PT on IDD remain unclear. Methods In this study, we used a comprehensive strategy combining bioinformatic analysis with experimental verification to investigate the possible molecular mechanisms of PT against IDD. We retrieved targets for PT and IDD, and then used their overlapped targets for protein-protein interaction (PPI) analysis. In addition, we used Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses to investigate the anti-IDD mechanisms of PT. Moreover, in vivo and in vitro experiment validations including hematoxylin-eosin (HE) and safranine O-green staining, senescence-associated β-galactosidase (SA-β-gal) assay, cell immunofluorescence staining, intracellular ROS measurement and Western blot analysis were performed to verify bioinformatics findings. Results We identified 342 and 872 PT- and IDD-related targets (32 overlapping targets). GO enrichment analysis yielded 450 terms related to oxidative stress and inflammatory response regulation. KEGG analysis identified 48 signaling pathways, 10 of which were significant; the TNF-α signaling pathway had the highest p-value, and prostaglandin G/H synthase 2 (PTGS2), endothelin-1 (EDN1), TNF-α, JUN and FOS were enriched in this pathway. Histopathological results and safranin O/green staining demonstrated that PT attenuated IDD, and SA-β-gal assay showed that PT ameliorated nucleus pulposus cell (NPC) senescence. An ROS probe was adopted to confirm the protective effect of PT against oxidative stress. Western blot analyses confirmed that PT downregulated the protein expression of PTGS2, EDN1, TNF-α, JUN and FOS in the TNF-α signaling pathway as well as cellular senescence marker p16, proinflammatory cytokine interleukin-6 (IL6), while PT upregulated the expression of NPC-specific markers including COL2A1 and ACAN in a concentration-dependent manner. Conclusions To the best of our knowledge, this study is the first to report that PT alleviates IDD by downregulating the protein expression of PTGS2, EDN1, TNF-α, JUN and FOS in the TNF-α signaling pathway and upregulating that of COL2A1 and ACAN, thus suppressing inflammatory responses and oxidative stress in NPCs.
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Affiliation(s)
- Peng Zhang
- Guangzhou University of Chinese Medicine, Guangzhou 510405, China; (P.Z.); (Y.G.); (Q.S.); (H.C.)
| | - Jiahui He
- The Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China;
| | - Yanchi Gan
- Guangzhou University of Chinese Medicine, Guangzhou 510405, China; (P.Z.); (Y.G.); (Q.S.); (H.C.)
| | - Qi Shang
- Guangzhou University of Chinese Medicine, Guangzhou 510405, China; (P.Z.); (Y.G.); (Q.S.); (H.C.)
| | - Honglin Chen
- Guangzhou University of Chinese Medicine, Guangzhou 510405, China; (P.Z.); (Y.G.); (Q.S.); (H.C.)
| | - Wenhua Zhao
- Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China; (W.Z.); (G.S.)
| | - Gengyang Shen
- Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China; (W.Z.); (G.S.)
| | - Xiaobing Jiang
- Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China; (W.Z.); (G.S.)
| | - Hui Ren
- Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China; (W.Z.); (G.S.)
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Lin M, Hu Y, An H, Guo T, Gao Y, Peng K, Zhao M, Zhang X, Zhou H. Silk fibroin-based biomaterials for disc tissue engineering. Biomater Sci 2023; 11:749-776. [PMID: 36537344 DOI: 10.1039/d2bm01343f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Low back pain is the major cause of disability worldwide, and intervertebral disc degeneration (IVDD) is one of the most important causes of low back pain. Currently, there is no method to treat IVDD that can reverse or regenerate intervertebral disc (IVD) tissue, but the recent development of disc tissue engineering (DTE) offers a new means of addressing these disadvantages. Among numerous biomaterials for tissue engineering, silk fibroin (SF) is widely used due to its easy availability and excellent physical/chemical properties. SF is usually used in combination with other materials to construct biological scaffolds or bioactive substance delivery systems, or it can be used alone. The present article first briefly outlines the anatomical and physiological features of IVD, the associated etiology and current treatment modalities of IVDD, and the current status of DTE. Then, it highlights the characteristics of SF biomaterials and their latest research advances in DTE and discusses the prospects and challenges in the application of SF in DTE, with a view to facilitating the clinical process of developing interventions related to IVD-derived low back pain caused by IVDD.
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Affiliation(s)
- Maoqiang Lin
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China. .,Key Laboratory of Bone and Joint Disease Research of Gansu Province, Lanzhou 730030, Gansu, China
| | - Yicun Hu
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China. .,Key Laboratory of Bone and Joint Disease Research of Gansu Province, Lanzhou 730030, Gansu, China
| | - Haiying An
- Department of Laboratory Medicine, Zhongnan Hospital, Wuhan University, Wuhan 430000, Hubei, China
| | - Taowen Guo
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China. .,Key Laboratory of Bone and Joint Disease Research of Gansu Province, Lanzhou 730030, Gansu, China
| | - Yanbing Gao
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China. .,Key Laboratory of Bone and Joint Disease Research of Gansu Province, Lanzhou 730030, Gansu, China
| | - Kaichen Peng
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China. .,Key Laboratory of Bone and Joint Disease Research of Gansu Province, Lanzhou 730030, Gansu, China
| | - Meiling Zhao
- Key Laboratory of Bone and Joint Disease Research of Gansu Province, Lanzhou 730030, Gansu, China
| | - Xiaobo Zhang
- Department of Orthopedics, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710000, Shaanxi, China.
| | - Haiyu Zhou
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China. .,Key Laboratory of Bone and Joint Disease Research of Gansu Province, Lanzhou 730030, Gansu, China
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Liu H, Bai Y, Huang C, Wang Y, Ji Y, Du Y, Xu L, Yu DG, Bligh SWA. Recent Progress of Electrospun Herbal Medicine Nanofibers. Biomolecules 2023; 13:184. [PMID: 36671570 PMCID: PMC9855805 DOI: 10.3390/biom13010184] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/28/2022] [Accepted: 01/09/2023] [Indexed: 01/18/2023] Open
Abstract
Herbal medicine has a long history of medical efficacy with low toxicity, side effects and good biocompatibility. However, the bioavailability of the extract of raw herbs and bioactive compounds is poor because of their low water solubility. In order to overcome the solubility issues, electrospinning technology can offer a delivery alternative to resolve them. The electrospun fibers have the advantages of high specific surface area, high porosity, excellent mechanical strength and flexible structures. At the same time, various natural and synthetic polymer-bound fibers can mimic extracellular matrix applications in different medical fields. In this paper, the development of electrospinning technology and polymers used for incorporating herbal medicine into electrospun nanofibers are reviewed. Finally, the recent progress of the applications of these herbal medicine nanofibers in biomedical (drug delivery, wound dressing, tissue engineering) and food fields along with their future prospects is discussed.
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Affiliation(s)
- Hang Liu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yubin Bai
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Chang Huang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Ying Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yuexin Ji
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yutong Du
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Lin Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Sim Wan Annie Bligh
- School of Health Sciences, Caritas Institute of Higher Education, Hong Kong 999077, China
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4
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Qian H, He L, Ye Z, Wei Z, Ao J. Decellularized matrix for repairing intervertebral disc degeneration: Fabrication methods, applications and animal models. Mater Today Bio 2022; 18:100523. [PMID: 36590980 PMCID: PMC9800636 DOI: 10.1016/j.mtbio.2022.100523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
Intervertebral disc degeneration (IDD)-induced low back pain significantly influences the quality of life, placing a burden on public health systems worldwide. Currently available therapeutic strategies, such as conservative or operative treatment, cannot effectively restore intervertebral disc (IVD) function. Decellularized matrix (DCM) is a tissue-engineered biomaterial fabricated using physical, chemical, and enzymatic technologies to eliminate cells and antigens. By contrast, the extracellular matrix (ECM), including collagen and glycosaminoglycans, which are well retained, have been extensively studied in IVD regeneration. DCM inherits the native architecture and specific-differentiation induction ability of IVD and has demonstrated effectiveness in IVD regeneration in vitro and in vivo. Moreover, significant improvements have been achieved in the preparation process, mechanistic insights, and application of DCM for IDD repair. Herein, we comprehensively summarize and provide an overview of the roles and applications of DCM for IDD repair based on the existing evidence to shed a novel light on the clinical treatment of IDD.
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Key Words
- (3D), three-dimensional
- (AF), annular fibers
- (AFSC), AF stem cells
- (APNP), acellular hydrogel descendent from porcine NP
- (DAF-G), decellularized AF hydrogel
- (DAPI), 4,6-diamidino-2-phenylindole
- (DCM), decellularized matrix
- (DET), detergent-enzymatic treatment
- (DWJM), Wharton's jelly matrix
- (ECM), extracellular matrix
- (EVs), extracellular vesicles
- (Exos), exosome
- (IDD), intervertebral disc degeneration
- (IVD), intervertebral disc
- (LBP), Low back pain
- (NP), nucleus pulposus
- (NPCS), NP-based cell delivery system
- (PEGDA/DAFM), polyethylene glycol diacrylate/decellularized AF matrix
- (SD), sodium deoxycholate
- (SDS), sodium dodecyl sulfate
- (SIS), small intestinal submucosa
- (TGF), transforming growth factor
- (bFGF), basic fibroblast growth factor
- (hADSCs), human adipose-derived stem cells
- (hDF), human dermal fibroblast
- (iAF), inner annular fibers
- (oAF), outer annular fibers
- (sGAG), sulfated glycosaminoglycan
- Decellularized matrix
- Intervertebral disc degeneration
- Regenerative medicine
- Tissue engineering
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Affiliation(s)
- Hu Qian
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Li He
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zhimin Ye
- Department of Pathology, School of Basic Medical Sciences, Central South University, Changsha, China
- Corresponding author. Department of Pathology, School of Basic Medical Sciences, Central South University, Changsha, 410000, China.
| | - Zairong Wei
- Department of Burns and Plastic Surgery, The Affiliated Hospital of Zunyi Medical College, Zunyi, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Corresponding author. Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, 563000, China.
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5
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Role of Pyroptosis in Intervertebral Disc Degeneration and Its Therapeutic Implications. Biomolecules 2022; 12:biom12121804. [PMID: 36551232 PMCID: PMC9775394 DOI: 10.3390/biom12121804] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/27/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Intervertebral disc degeneration (IDD), a progressive and multifactorial pathological process, is predominantly associated with low back pain and permanent disability. Pyroptosis is a type of lytic programmed cell death triggered by the activation of inflammasomes and caspases. Unlike apoptosis, pyroptosis is characterized by the rupture of the plasma membrane and the release of inflammatory mediators, accelerating the destruction of the extracellular matrix (ECM). Recent studies have shown that pyrin domain-containing 3 (NLRP3) inflammasome-mediated pyroptosis in nucleus pulposus (NP) cells is activated in the progression of IDD. Furthermore, targeting pyroptosis in IDD demonstrates the excellent capacity of ECM remodeling and its anti-inflammatory properties, suggesting that pyroptosis is involved in the IDD process. In this review, we briefly summarize the molecular mechanism of pyroptosis and the pathogenesis of IDD. We also focus on the role of pyroptosis in the pathological progress of IDD and its targeted therapeutic application.
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6
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Han F, Yu Q, Chu G, Li J, Zhu Z, Tu Z, Liu C, Zhang W, Zhao R, Mao H, Han F, Li B. Multifunctional Nanofibrous Scaffolds with Angle-Ply Microstructure and Co-Delivery Capacity Promote Partial Repair and Total Replacement of Intervertebral Disc. Adv Healthc Mater 2022; 11:e2200895. [PMID: 35834429 DOI: 10.1002/adhm.202200895] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/17/2022] [Indexed: 01/27/2023]
Abstract
There is an urgent clinical need for the treatment of annulus fibrosus (AF) impairment caused by intervertebral disc (IVD) degeneration or surgical injury. Although repairing injured AF through tissue engineering is promising, the approach is limited by the complicated angle-ply microstructure, inflammatory microenvironment, poor self-repairing ability of AF cells and deficient matrix production. In this study, electrospinning technology is used to construct aligned core-shell nanofibrous scaffolds loaded with transforming growth factor-β3 (TGFβ3) and ibuprofen (IBU), respectively. The results confirm that the rapid IBU release improves the inflammatory microenvironment, while sustained TGFβ3 release enhances nascent extracellular matrix (ECM) formation. Biomaterials for clinical applications must repair local AF defects during herniectomy and enable AF regeneration during disc replacement, so a box defect model and total IVD replacement model in rat tail are constructed. The dual-drug delivering electrospun scaffolds are assembled into angle-ply structure to form a highly biomimetic AF that is implanted into the box defect or used to replace the disc. In two animal models, it is found that biomimetic scaffolds with good anti-inflammatory ability enhance ECM formation and maintain the mechanical properties of IVD. Findings from this study demonstrate that the multifunctional nanofibrous scaffolds provide inspirations for IVD repair.
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Affiliation(s)
- Feng Han
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China
| | - Qifan Yu
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China
| | - Genglei Chu
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China
| | - Jiaying Li
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China
| | - Zhuang Zhu
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China
| | - Zhengdong Tu
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China
| | - Changjiang Liu
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China
| | - Weidong Zhang
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China
| | - Runze Zhao
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China
| | - Haijiao Mao
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang, 315000, China
| | - Fengxuan Han
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China
| | - Bin Li
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215006, China.,The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang, 315000, China.,China Orthopaedic Regenerative Medicine Group (CORMed), Hangzhou, Zhejiang, 310000, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, 215000, China
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7
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Yu Q, Han F, Yuan Z, Zhu Z, Liu C, Tu Z, Guo Q, Zhao R, Zhang W, Wang H, Mao H, Li B, Zhu C. Fucoidan-loaded nanofibrous scaffolds promote annulus fibrosus repair by ameliorating the inflammatory and oxidative microenvironments in degenerative intervertebral discs. Acta Biomater 2022; 148:73-89. [PMID: 35671874 DOI: 10.1016/j.actbio.2022.05.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 05/23/2022] [Accepted: 05/31/2022] [Indexed: 11/01/2022]
Abstract
Tissue engineering holds potential in the treatment of intervertebral disc degeneration (IDD). However, implantation of tissue engineered constructs may cause foreign body reaction and aggravate the inflammatory and oxidative microenvironment of the degenerative intervertebral disc (IVD). In order to ameliorate the adverse microenvironment of IDD, in this study, we prepared a biocompatible poly (ether carbonate urethane) urea (PECUU) nanofibrous scaffold loaded with fucoidan, a natural marine bioactive polysaccharide which has great anti-inflammatory and antioxidative functions. Compared with pure PECUU scaffold, the fucoidan-loaded PECUU nanofibrous scaffold (F-PECUU) decreased the gene and protein expression related to inflammation and the oxidative stress in the lipopolysaccharide (LPS) induced annulus fibrosus cells (AFCs) significantly (p<0.05). Especially, gene expression of Ill 6 and Ptgs2 was decreased by more than 50% in F-PECUU with 3.0 wt% fucoidan (HF-PECUU). Moreover, the gene and protein expression related to the degradation of extracellular matrix (ECM) were reduced in a fucoidan concentration-dependent manner significantly, with increased almost 3 times gene expression of Col1a2 and Acan in HF-PECUU. Further, in a 'box' defect model, HF-PECUU decreased the expression of COX-2 and deposited more ECM between scaffold layers when compared with pure PECUU. The disc height and nucleus pulposus hydration of repaired IVD reached up to 75% and 85% of those in the sham group. In addition, F-PECUU helped to maintain an integrate tissue structure with a similar compression modulus to that in sham group. Taken together, the F-PECUU nanofibrous scaffolds showed promising potential to promote AF repair in IDD treatment by ameliorating the harsh degenerative microenvironment. STATEMENT OF SIGNIFICANCE: Annulus fibrosus (AF) tissue engineering holds potential in the treatment of intervertebral disc degeneration (IDD), but is restricted by the inflammatory and oxidative microenvironment of degenerative disc. This study developed a biocompatible polyurethane scaffold (F-PECUU) loaded with fucoidan, a marine bioactive polysaccharide, for ameliorating IDD microenvironment and promoting disc regeneration. F-PECUU alleviated the inflammation and oxidative stress caused by lipopolysaccharide and prevented extracellular matrix (ECM) degradation in AF cells. In vivo, it promoted ECM deposition to maintain the height, water content and mechanical property of disc. This work has shown the potential of marine polysaccharides-containing functional scaffolds in IDD treatment by ameliorating the harsh microenvironment accompanied with disc degeneration.
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Affiliation(s)
- Qifan Yu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Feng Han
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Zhangqin Yuan
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Zhuang Zhu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Changjiang Liu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Zhengdong Tu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Qianping Guo
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Runze Zhao
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Weidong Zhang
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Huan Wang
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Haijiao Mao
- Department of Orthopaedic Surgery, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang 315000, China.
| | - Bin Li
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China; Department of Orthopaedic Surgery, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang 315000, China; Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu 215000, China.
| | - Caihong Zhu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China.
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8
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Chen Y, Lai J, Zhou R, Ouyang Y, Fu H. The Analgesic Effect of Dexmedetomidine Loaded with Nano-Hydrogel as a Novel Nano-Drug Delivery System for Thoracic Paravertebral Block After Thoracic Surgery. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Objective: To understand the effect of dexmedetomidine (Dex) thoracic paravertebral block combined with an injectable nano-drug delivery system in postoperative analgesia after thoracic surgery, an injectable nano-drug delivery system. Methods: Dex-loaded nano-hydrogel
was first prepared in this study and its characteristics and drug release performance in vitro was investigated. Then, it was applied to the postoperative analgesia of 140 patients undergoing thoracic surgery. Results: It was found that the loading efficiency reached the highest
when the ratio of Dex to injectable nano-hydrogel was 1:1; and at pH = 7.5, the cumulative release of 95.4%. The visual analogue scale (VAS) score and cumulative effective pressure times of analgesia pump in the observation group were lower than those of the control group. The sleep time per
day and satisfaction of analgesia within 48 h in patients from the observation group were higher than those of the control group. The proportion of patients with remedial analgesia within 48 hours, and the proportion of patients with nausea and vomiting were significantly lower in patients
treated with Dex-loaded with nano-hydrogel. Conclusion: Injectable nano-drug delivery system had good drug release and combination of Dex thoracic paravertebral block and nano-drug delivery system could significantly relieve pain after thoracic surgery and improve patients’ sleep
quality.
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Affiliation(s)
- Yuanli Chen
- Department of Anesthesiology, Chongqing Emergency Medical Center, Chongqing, 400014, China; Department of Anesthesiology, Chongqing University Central Hospital, Chongqing, 400014, China
| | - Jingyi Lai
- Department of Anesthesiology, Chongqing Emergency Medical Center, Chongqing, 400014, China; Department of Anesthesiology, Chongqing University Central Hospital, Chongqing, 400014, China
| | - Runfang Zhou
- Department of Anesthesiology, Chongqing Emergency Medical Center, Chongqing, 400014, China; Department of Anesthesiology, Chongqing University Central Hospital, Chongqing, 400014, China
| | - Yufang Ouyang
- Department of Anesthesiology, Chongqing Emergency Medical Center, Chongqing, 400014, China; Department of Anesthesiology, Chongqing University Central Hospital, Chongqing, 400014, China
| | - Hong Fu
- Department of Anesthesiology, Chongqing Emergency Medical Center, Chongqing, 400014, China; Department of Anesthesiology, Chongqing University Central Hospital, Chongqing, 400014, China
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9
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Li C, Bai Q, Lai Y, Tian J, Li J, Sun X, Zhao Y. Advances and Prospects in Biomaterials for Intervertebral Disk Regeneration. Front Bioeng Biotechnol 2021; 9:766087. [PMID: 34746112 PMCID: PMC8569141 DOI: 10.3389/fbioe.2021.766087] [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] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 10/08/2021] [Indexed: 12/12/2022] Open
Abstract
Low-back and neck-shoulder pains caused by intervertebral disk degeneration are highly prevalent among middle-aged and elderly people globally. The main therapy method for intervertebral disk degeneration is surgical intervention, including interbody fusion, disk replacement, and diskectomy. However, the stress changes caused by traditional fusion surgery are prone to degeneration of adjacent segments, while non-fusion surgery has problems, such as ossification of artificial intervertebral disks. To overcome these drawbacks, biomaterials that could endogenously regenerate the intervertebral disk and restore the biomechanical function of the intervertebral disk is imperative. Intervertebral disk is a fibrocartilaginous tissue, primarily comprising nucleus pulposus and annulus fibrosus. Nucleus pulposus (NP) contains high water and proteoglycan, and its main function is absorbing compressive forces and dispersing loads from physical activities to other body parts. Annulus fibrosus (AF) is a multilamellar structure that encloses the NP, comprises water and collagen, and supports compressive and shear stress during complex motion. Therefore, different biomaterials and tissue engineering strategies are required for the functional recovery of NP and AF based on their structures and function. Recently, great progress has been achieved on biomaterials for NP and AF made of functional polymers, such as chitosan, collagen, polylactic acid, and polycaprolactone. However, scaffolds regenerating intervertebral disk remain unexplored. Hence, several tissue engineering strategies based on cell transplantation and growth factors have been extensively researched. In this review, we summarized the functional polymers and tissue engineering strategies of NP and AF to endogenously regenerate degenerative intervertebral disk. The perspective and challenges of tissue engineering strategies using functional polymers, cell transplantation, and growth factor for generating degenerative intervertebral disks were also discussed.
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Affiliation(s)
- Chunxu Li
- Department of Orthopaedics, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Qiushi Bai
- Department of Orthopaedics, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yuxiao Lai
- Centre for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jingjing Tian
- Medical Science Research Center, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Jiahao Li
- Department of Orthopaedics, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaodan Sun
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, China
| | - Yu Zhao
- Department of Orthopaedics, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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Dieterle MP, Husari A, Rolauffs B, Steinberg T, Tomakidi P. Integrins, cadherins and channels in cartilage mechanotransduction: perspectives for future regeneration strategies. Expert Rev Mol Med 2021; 23:e14. [PMID: 34702419 PMCID: PMC8724267 DOI: 10.1017/erm.2021.16] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 02/07/2023]
Abstract
Articular cartilage consists of hyaline cartilage, is a major constituent of the human musculoskeletal system and has critical functions in frictionless joint movement and articular homoeostasis. Osteoarthritis (OA) is an inflammatory disease of articular cartilage, which promotes joint degeneration. Although it affects millions of people, there are no satisfying therapies that address this disease at the molecular level. Therefore, tissue regeneration approaches aim at modifying chondrocyte biology to mitigate the consequences of OA. This requires appropriate biochemical and biophysical stimulation of cells. Regarding the latter, mechanotransduction of chondrocytes and their precursor cells has become increasingly important over the last few decades. Mechanotransduction is the transformation of external biophysical stimuli into intracellular biochemical signals, involving sensor molecules at the cell surface and intracellular signalling molecules, so-called mechano-sensors and -transducers. These signalling events determine cell behaviour. Mechanotransducing ion channels and gap junctions additionally govern chondrocyte physiology. It is of great scientific and medical interest to induce a specific cell behaviour by controlling these mechanotransduction pathways and to translate this knowledge into regenerative clinical therapies. This review therefore focuses on the mechanotransduction properties of integrins, cadherins and ion channels in cartilaginous tissues to provide perspectives for cartilage regeneration.
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Affiliation(s)
- Martin Philipp Dieterle
- Division of Oral Biotechnology, Center for Dental Medicine, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106Freiburg, Germany
| | - Ayman Husari
- Division of Oral Biotechnology, Center for Dental Medicine, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106Freiburg, Germany
- Department of Orthodontics, Center for Dental Medicine, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106Freiburg, Germany
| | - Bernd Rolauffs
- Department of Orthopedics and Trauma Surgery, G.E.R.N. Research Center for Tissue Replacement, Regeneration & Neogenesis, Medical Center – Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79085Freiburg im Breisgau, Germany
| | - Thorsten Steinberg
- Division of Oral Biotechnology, Center for Dental Medicine, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106Freiburg, Germany
| | - Pascal Tomakidi
- Division of Oral Biotechnology, Center for Dental Medicine, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106Freiburg, Germany
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