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Bian Y, Cai X, Zhou R, Lv Z, Xu Y, Wang Y, Wang H, Zhu W, Sun H, Zhao X, Feng B, Weng X. Advances in meniscus tissue engineering: Towards bridging the gaps from bench to bedside. Biomaterials 2025; 312:122716. [PMID: 39121731 DOI: 10.1016/j.biomaterials.2024.122716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 07/12/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024]
Abstract
Meniscus is vital for maintaining the anatomical and functional integrity of knee. Injuries to meniscus, commonly caused by trauma or degenerative processes, can result in knee joint dysfunction and secondary osteoarthritis, while current conservative and surgical interventions for meniscus injuries bear suboptimal outcomes. In the past decade, there has been a significant focus on advancing meniscus tissue engineering, encompassing isolated scaffold strategies, biological augmentation, physical stimulus, and meniscus organoids, to improve the prognosis of meniscus injuries. Despite noteworthy promising preclinical results, translational gaps and inconsistencies in the therapeutic efficiency between preclinical and clinical studies exist. This review comprehensively outlines the developments in meniscus tissue engineering over the past decade (Scheme 1). Reasons for the discordant results between preclinical and clinical trials, as well as potential strategies to expedite the translation of bench-to-bedside approaches are analyzed and discussed.
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Affiliation(s)
- Yixin Bian
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Xuejie Cai
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Runze Zhou
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Zehui Lv
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Yiming Xu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Yingjie Wang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Han Wang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Wei Zhu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Hanyang Sun
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Xiuli Zhao
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
| | - Bin Feng
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.
| | - Xisheng Weng
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.
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Tong J, Subbiah SK, Rampal S, Ramasamy R, Wu X, You Y, Wang J, Mok PL. Effect of 660-nm LED photobiomodulation on the proliferation and chondrogenesis of meniscus-derived stem cells (MeSCs). Sci Rep 2024; 14:19735. [PMID: 39183213 PMCID: PMC11345413 DOI: 10.1038/s41598-024-70258-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 08/14/2024] [Indexed: 08/27/2024] Open
Abstract
Meniscus-derived stem cells (MeSCs), a unique type of MSC, have outstanding advantages in meniscal cytotherapy and tissue engineering, but the effects and molecular mechanisms of PBM on MeSCs are still unclear. We used 660-nm LED light with different energy densities to irradiate six human MeSC samples and tested their proliferation rate via cell counting, chondrogenic differentiation capacity via the DMMB assay, mitochondrial activity via the MTT assay, and gene expression via qPCR. The proliferation ability, chondrogenic capacity and mitochondrial activity of the 18 J/cm2 group were greater than those of the 4 J/cm2 and control groups. The mRNA expression levels of Akt, PI3K, TGF-β3, Ki67 and Notch-1 in the 18 J/cm2 group were greater than those in the other groups in most samples. After chondrogenic induction, the expression of Col2A1, Sox9 and Aggrecan in the 18 J/cm2 group was significantly greater than that in the 4 J/cm2 and control groups in most of the samples. The variation in the MTT values and Src, PI3K, Akt, mTOR and GSK3β levels decreased with time. The results showed that 660-nm LED red light promoted proliferation and chondrogenic differentiation and affected the gene expression of MeSCs, and the effects on gene expression and mitochondrial activity decreased with time.
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Affiliation(s)
- Jiabei Tong
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
- The Fifth People's Hospital of Luoyang (The Fifth Affiliated Hospital of Henan University of Science and Technology), No.505 Taikang East Road, Luolong District, Luoyang City, 471000, Henan Province, China.
| | - Suresh Kumar Subbiah
- Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, 602105, India
| | - Sanjiv Rampal
- Orthopaedic Department, School of Medicine, International Medical University, 57000, Kuala Lumpur, Malaysia
- Department of Orthopaedic and Traumatology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Rajesh Ramasamy
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Xiaoyun Wu
- Department of Technology, Inner Mongolia Stem Cell (ProterCell) Biotechnology Co., Ltd., Hohhot, China
| | - Yanyan You
- Pharmacy Department, Tongliao Hospital, Tongliao, 028000, Inner Mongolia, China
| | - Jiaojiao Wang
- Department of Obstetrics and Gynecology, Maternal and Child Health Hospital of Haidian District, Beijing, 100080, China
| | - Pooi Ling Mok
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
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Wong PC, Chen KH, Wang WR, Chen CY, Wang YT, Lee YB, Wu JL. Injectable ChitHCl-DDA tissue adhesive with high adhesive strength and biocompatibility for torn meniscus repair and regeneration. Int J Biol Macromol 2024; 270:132409. [PMID: 38768918 DOI: 10.1016/j.ijbiomac.2024.132409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 05/09/2024] [Accepted: 05/13/2024] [Indexed: 05/22/2024]
Abstract
Suture pull-through is a clinical problem in meniscus repair surgery due to the sharp leading edge of sutures. Several tissue adhesives have been developed as an alternative to traditional suturing; however, there is still no suitable tissue adhesive specific for meniscus repair treatment due to unsatisfactory biosafety, biodegradable, sterilizable, and tissue-bonding characteristics. In this study, we used a tissue adhesive composed of chitosan hydrochloride reacted with oxidative periodate-oxidized dextran (ChitHCl-DDA) combined with a chitosan-based hydrogel and oxidative dextran to attach to the meniscus. We conducted viscoelastic tests, viscosity tests, lap shear stress tests, Fourier transform infrared (FTIR) spectroscopy, swelling ratio tests, and degradation behavior tests to characterize these materials. An MTT assay, alcian blue staining, migration assay, cell behavior observations, and protein expression tests were used to understand cell viability and responses. Moreover, ex vivo and in vivo tests were used to analyze tissue regeneration and biocompatibility of the ChitHCl-DDA tissue adhesive. Our results revealed that the ChitHCl-DDA tissue adhesive provided excellent tissue adhesive strength, cell viability, and cell responses. This tissue adhesive has great potential for torn meniscus tissue repair and regeneration.
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Affiliation(s)
- Pei-Chun Wong
- Graduate Institute of Biomedical Optomechatronics, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Kuan-Hao Chen
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan; Department of Orthopedics, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Wei-Ru Wang
- Graduate Institute of Biomedical Optomechatronics, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Chieh-Ying Chen
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Yu-Tzu Wang
- Department of Mechanical and Electro-Mechanical Engineering, TamKang University, New Taipei City, Taiwan
| | - Yu-Bin Lee
- Department of Advanced Toxicology Research, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea
| | - Jia-Lin Wu
- Department of Orthopedics, Taipei Medical University Hospital, Taipei, Taiwan; Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Orthopedics Research Center, Taipei Medical University Hospital, Taipei, Taiwan; Centers for Regional Anesthesia and Pain Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
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Bandyopadhyay A, Ghibhela B, Mandal BB. Current advances in engineering meniscal tissues: insights into 3D printing, injectable hydrogels and physical stimulation based strategies. Biofabrication 2024; 16:022006. [PMID: 38277686 DOI: 10.1088/1758-5090/ad22f0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/26/2024] [Indexed: 01/28/2024]
Abstract
The knee meniscus is the cushioning fibro-cartilage tissue present in between the femoral condyles and tibial plateau of the knee joint. It is largely avascular in nature and suffers from a wide range of tears and injuries caused by accidents, trauma, active lifestyle of the populace and old age of individuals. Healing of the meniscus is especially difficult due to its avascularity and hence requires invasive arthroscopic approaches such as surgical resection, suturing or implantation. Though various tissue engineering approaches are proposed for the treatment of meniscus tears, three-dimensional (3D) printing/bioprinting, injectable hydrogels and physical stimulation involving modalities are gaining forefront in the past decade. A plethora of new printing approaches such as direct light photopolymerization and volumetric printing, injectable biomaterials loaded with growth factors and physical stimulation such as low-intensity ultrasound approaches are being added to the treatment portfolio along with the contemporary tear mitigation measures. This review discusses on the necessary design considerations, approaches for 3D modeling and design practices for meniscal tear treatments within the scope of tissue engineering and regeneration. Also, the suitable materials, cell sources, growth factors, fixation and lubrication strategies, mechanical stimulation approaches, 3D printing strategies and injectable hydrogels for meniscal tear management have been elaborated. We have also summarized potential technologies and the potential framework that could be the herald of the future of meniscus tissue engineering and repair approaches.
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Affiliation(s)
- Ashutosh Bandyopadhyay
- Biomaterials and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Baishali Ghibhela
- Biomaterials and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Biman B Mandal
- Biomaterials and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- Jyoti and Bhupat Mehta School of Health Sciences and Technology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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Kaushal SG, Barnett SC, Hosseinzadeh S, Perrone GS, Kiapour AM. Changes in Functional Meniscal Morphology During Skeletal Growth and Maturation. Orthop J Sports Med 2024; 12:23259671241237810. [PMID: 38532765 PMCID: PMC10964461 DOI: 10.1177/23259671241237810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 09/18/2023] [Indexed: 03/28/2024] Open
Abstract
Background Little is known on how meniscal morphology develops during skeletal growth and maturation and its subsequent relationship with the corresponding bony anatomy. Hypotheses (1) Meniscal dimensions and morphology would change by age during skeletal growth and maturation in different ways in boys compared with girls. (2) Morphological features of the medial and lateral menisci would correlate to medial and lateral femoral condyle curvatures. Study Design Cross-sectional study; Level of evidence, 3. Methods Anatomic features of the medial and lateral menisci were measured on magnetic resonance imaging scans from 269 unique knees (age, 3-18 years; 51% female) with no prior history of injury, congenital or growth-related skeletal disorders, or bony deformities. Morphological shape-based measurements were normalized to tibial plateau width or determined as ratios of meniscal dimensions. The association between age and anatomy was analyzed with linear regression. Two-way analysis of variance with the Holm-Šídák post hoc method was used to compare anatomy between sexes in different age groups. Linear regression was used to evaluate the relationship between femoral condyle curvature radius and meniscal morphology in each compartment after adjusting for age and sex. Results Meniscal length, width, horn distance, mean cross-sectional area (CSA), and mean height increased with age in both sexes (R2 > 0.1; P < .001). Age-related changes in meniscal morphology were seen in normalized length, width, horn distance, and mean height; width-to-length ratio; horn distance-to-length ratio (lateral meniscus only); normalized mean CSA (except lateral meniscus in girls); and mean tip angle (R2 > 0.04; P < .02). Sex-based differences were also found, with some morphological differences (normalized length and height) throughout development (P < .03) and size differences (length, width, and mean CSA) in later development (P < .01). After adjusting for age and sex, there were significant correlations between medial condyle curvature radius and normalized width, width-to-length ratio, horn distance, horn distance-to-length ratio, mean CSA, and mean height of the medial meniscus (P≤ .041) and between lateral condyle curvature radius and normalized length, mean height, and mean tip angle of the lateral meniscus (P≤ .004). Conclusion Age-related changes in meniscal dimensions and morphology, most notably a nonuniform growth pattern in meniscal geometry, occurred during skeletal growth and maturation, with different trends in boys than in girls.
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Affiliation(s)
- Shankar G. Kaushal
- Department of Orthopaedic Surgery, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Samuel C. Barnett
- Department of Orthopaedic Surgery, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Shayan Hosseinzadeh
- Department of Orthopaedic Surgery, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gabriel S. Perrone
- Department of Orthopaedic Surgery, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Orthopaedics, Tufts Medical School, Boston, Massachusetts, USA
| | - Ata M. Kiapour
- Department of Orthopaedic Surgery, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Dabaghi M, Eras V, Kaltenhaeuser D, Ahmed N, Wildemann B. Allografts for partial meniscus repair: an in vitro and ex vivo meniscus culture study. Front Bioeng Biotechnol 2023; 11:1268176. [PMID: 37901839 PMCID: PMC10603185 DOI: 10.3389/fbioe.2023.1268176] [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: 07/27/2023] [Accepted: 09/11/2023] [Indexed: 10/31/2023] Open
Abstract
The purpose of this study was to evaluate the treatment potential of a human-derived demineralized scaffold, Spongioflex® (SPX), in partial meniscal lesions by employing in vitro models. In the first step, the differentiation potential of human meniscal cells (MCs) was investigated. In the next step, the ability of SPX to accommodate and support the adherence and/or growth of MCs while maintaining their fibroblastic/chondrocytic properties was studied. Control scaffolds, including bovine collagen meniscus implant (CMI) and human meniscus allograft (M-Allo), were used for comparison purposes. In addition, the migration tendency of MCs from fresh donor meniscal tissue into SPX was investigated in an ex vivo model. The results showed that MCs cultured in osteogenic medium did not differentiate into osteogenic cells or form significant calcium phosphate deposits, although AP activity was relatively increased in these cells. Culturing cells on the scaffolds revealed increased viability on SPX compared to the other scaffold materials. Collagen I synthesis, assessed by ELISA, was similar in cells cultured in 2D and on SPX. MCs on micro-porous SPX (weight >0.5 g/cm3) exhibited increased osteogenic differentiation indicated by upregulated expression of ALP and RUNX2, while also showing upregulated expression of the chondrogen-specific SOX9 and ACAN genes. Ingrowth of cells on SPX was observed after 28 days of cultivation. Overall, the results suggest that SPX could be a promising biocompatible scaffold for meniscal regeneration.
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Affiliation(s)
- Mohammad Dabaghi
- Experimental Trauma Surgery, Department of Trauma, Hand and Reconstructive Surgery, Jena University Hospital, Friedrich Schiller University Jena, Jena, Germany
| | - Volker Eras
- German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), Berlin, Germany
| | - Daniel Kaltenhaeuser
- German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), Berlin, Germany
| | - Norus Ahmed
- German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), Berlin, Germany
| | - Britt Wildemann
- Experimental Trauma Surgery, Department of Trauma, Hand and Reconstructive Surgery, Jena University Hospital, Friedrich Schiller University Jena, Jena, Germany
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Chen Z, Deng XH, Jiang C, Wang JS, Li WP, Zhu KL, Li YH, Song B, Zhang ZZ. Repairing Avascular Meniscal Lesions by Recruiting Endogenous Targeted Cells Through Bispecific Synovial-Meniscal Aptamers. Am J Sports Med 2023; 51:1177-1193. [PMID: 36917829 DOI: 10.1177/03635465231159668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
BACKGROUND Tissue engineering is a promising treatment option for meniscal lesions in the avascular area, but a favorable cell source and its utilization in tissue-engineered menisci remain uncertain. Therefore, a more controllable and convenient method for cell recruitment is required. HYPOTHESIS Circular bispecific synovial-meniscal (S-M) aptamers with a gelatin methacryloyl (GelMA) hydrogel can recruit endogenous synovial and meniscal cells to the site of the defect, thereby promoting in situ meniscal regeneration and chondroprotection. STUDY DESIGN Controlled laboratory study. METHODS Synovial and meniscal aptamers were filtered through systematic evolution of ligands by exponential enrichment (SELEX) and cross-linked to synthesize the S-M aptamer. A GelMA-aptamer system was constructed. An in vitro analysis of the bi-recruitment of synovial and meniscal cells was performed, and the migration and proliferation of the GelMA-aptamer hydrogel were also tested. For the in vivo assay, rabbits (n = 90) with meniscal defects in the avascular zone were divided into 3 groups: repair with the GelMA-aptamer hydrogel (GelMA-aptamer group), repair with the GelMA hydrogel (GelMA group), and no repair (blank group). Regeneration of the repaired meniscus and degeneration of the cartilage were assessed by gross and histological evaluations at 4, 8, and 12 weeks postoperatively. The mechanical properties of repaired menisci were also evaluated. RESULTS In vitro synovial and meniscal cells were recruited simultaneously by the S-M aptamer with high affiliation and specificity. The GelMA-aptamer hydrogel promoted the migration of targeted cells. Compared with the other groups, the GelMA-aptamer group showed enhanced fibrocartilaginous regeneration, lower cartilage degeneration, and better mechanical strength at 12 weeks after meniscal repair. CONCLUSION/CLINICAL RELEVANCE Bispecific S-M aptamers could be used for avascular meniscal repair by recruiting endogenous synovial and meniscal cells and promoting fibrocartilaginous regeneration.
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Affiliation(s)
- Zhong Chen
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xing-Hao Deng
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chuan Jiang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing-Song Wang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei-Ping Li
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ke-Long Zhu
- School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Yu-Heng Li
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Bin Song
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zheng-Zheng Zhang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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Gigout A, Werkmann D, Menges S, Brenneis C, Henson F, Cowan KJ, Musil D, Thudium CS, Gühring H, Michaelis M, Kleinschmidt-Doerr K. R399E, A Mutated Form of Growth and Differentiation Factor 5, for Disease Modification of Osteoarthritis. Arthritis Rheumatol 2023; 75:375-386. [PMID: 36054172 DOI: 10.1002/art.42343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 07/05/2022] [Accepted: 08/31/2022] [Indexed: 11/10/2022]
Abstract
OBJECTIVE To preclinically characterize a mutant form of growth and differentiation factor 5, R399E, with reduced osteogenic properties as a potential disease-modifying osteoarthritis (OA) drug. METHODS Cartilage, synovium, and meniscus samples from patients with OA were used to evaluate anabolic and antiinflammatory properties of R399E. In the rabbit joint instability model, 65 rabbits underwent transection of the anterior cruciate ligament plus partial meniscectomy. Three intraarticular (IA) R399E doses were administered biweekly 6 times, and static incapacitance was determined to assess joint pain. OA was evaluated 13 weeks after surgery. In sheep, medial meniscus transection was performed to induce OA, dynamic weight bearing was measured in-life, and OA was assessed after 13 weeks. RESULTS Intermittent exposure to R399E (1 week per month) was sufficient to induce cell proliferation and release of anabolic markers in 3-dimensional chondrocyte cultures. R399E also inhibited the release of interleukin-1β (IL-1β), IL-6, and prostaglandin E2 from cartilage with synovium, meniscal cell, and synoviocyte cultures. In rabbits, the mean difference (95% confidence interval [95% CI]) in weight bearing for R399E compared to vehicle was -5.8 (95% confidence interval [95% CI] -9.54, -2.15), -7.2 (95% CI -10.93, -3.54), and -7.7 (95% CI -11.49, -3.84) for the 0.6, 6, and 60 μg doses, respectively, 6 hours after the first IA injection, and was statistically significant through the entire study for all doses. Cartilage surface structure improved with the 6-μg dose. Structural and symptomatic improvement with the same dose was confirmed in the sheep model of OA. CONCLUSION R399E influences several pathologic processes contributing to OA, highlighting its potential as a disease-modifying therapy.
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Affiliation(s)
- Anne Gigout
- Merck Healthcare KGaA 64293, Darmstadt, Germany
| | | | | | | | - Frances Henson
- Division of Trauma and Orthopaedic Surgery, University of Cambridge, Cambridge, UK
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Sun J, Chan YT, Ho KWK, Zhang L, Bian L, Tuan RS, Jiang Y. "Slow walk" mimetic tensile loading maintains human meniscus tissue resident progenitor cells homeostasis in photocrosslinked gelatin hydrogel. Bioact Mater 2023; 25:256-272. [PMID: 36825224 PMCID: PMC9941420 DOI: 10.1016/j.bioactmat.2023.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/14/2023] [Accepted: 01/31/2023] [Indexed: 02/10/2023] Open
Abstract
Meniscus, the cushion in knee joint, is a load-bearing tissue that transfers mechanical forces to extracellular matrix (ECM) and tissue resident cells. The mechanoresponse of human tissue resident stem/progenitor cells in meniscus (hMeSPCs) is significant to tissue homeostasis and regeneration but is not well understood. This study reports that a mild cyclic tensile loading regimen of ∼1800 loads/day on hMeSPCs seeded in 3-dimensional (3D) photocrosslinked gelatin methacryloyl (GelMA) hydrogel is critical in maintaining cellular homeostasis. Experimentally, a "slow walk" biomimetic cyclic loading regimen (10% tensile strain, 0.5 Hz, 1 h/day, up to 15 days) is applied to hMeSPCs encapsulated in GelMA hydrogel with a magnetic force-controlled loading actuator. The loading significantly increases cell differentiation and fibrocartilage-like ECM deposition without affecting cell viability. Transcriptomic analysis reveals 332 mechanoresponsive genes, clustered into cell senescence, mechanical sensitivity, and ECM dynamics, associated with interleukins, integrins, and collagens/matrix metalloproteinase pathways. The cell-GelMA constructs show active ECM remodeling, traced using a green fluorescence tagged (GFT)-GelMA hydrogel. Loading enhances nascent pericellular matrix production by the encapsulated hMeSPCs, which gradually compensates for the hydrogel loss in the cultures. These findings demonstrate the strong tissue-forming ability of hMeSPCs, and the importance of mechanical factors in maintaining meniscus homeostasis.
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Key Words
- 3D cell-based constructs
- 3D, Three-dimensional
- BMSCs, Bone marrow derived mesenchymal stem cells
- Biomimetic cyclic loading
- CFUs, Colony forming units
- Col I, Collagen type I
- Col II, Collagen type II
- DS, Degree of substitution
- ECM, Extracellular matrix
- Extracellular matrix
- GAGs, Glycosaminoglycans
- GFT-GelMA, Green fluorescence-tagged GelMA
- GelMA hydrogel
- GelMA, Gelatin methacryloyl
- Human meniscus progenitor cells
- MeHA, Methacrylated hyaluronic acid
- PCM, Pericellular matrix
- PI, Propidium iodide
- PPI, Protein-protein interaction
- hMeSPCs, Human meniscus stem/progenitor cells
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Affiliation(s)
- Jing Sun
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China,School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China
| | - Yau Tsz Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China,School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China
| | - Ki Wai Kevin Ho
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, And Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region of China
| | - Li Zhang
- Department of Mechanical and Automation Engineering, Faculty of Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China
| | - Liming Bian
- Department of Biomedical Engineering, Faculty of Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China
| | - Rocky S. Tuan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China,School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China,Center for Neuromusculoskeletal Restorative Medicine, Hong Kong Special Administrative Region of China,Corresponding author. Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China.
| | - Yangzi Jiang
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China,School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China,Center for Neuromusculoskeletal Restorative Medicine, Hong Kong Special Administrative Region of China,Corresponding author. Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong Special Administrative Region of China.
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10
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Deng Y, Tong ZM, Dai Z, Chen ZW. Regeneration of meniscal avascular zone using autogenous meniscal fragments in a rabbit model. BMC Surg 2022; 22:209. [PMID: 35643544 PMCID: PMC9148493 DOI: 10.1186/s12893-022-01663-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 05/18/2022] [Indexed: 11/24/2022] Open
Abstract
Background To investigate the effects of autologous meniscus fragment (AMF) implantation on injury in the meniscal avascular zone in mature rabbits. Methods Adult New Zealand white rabbits were randomly divided into two groups. Massive one-piece meniscus tissue was implanted in situ as control. In the experimental group, AMF was used to repair the meniscal injury in the avascular zone. Meniscal damage was assessed by gross observation of the degree of healing and histological semi-quantitative evaluation within 12 weeks postoperatively. The healing of meniscus interface was assessed by gross observation semiquantitative scoring and microscopic examination hematoxylin and eosin (H&E) staining at 2, 4, 8, and 12 weeks after surgery. The expressions of proliferating cell nuclear antigen (PCNA), collagen type I (COL1A1), and collagen type II (COL2) were detected by immunohistochemical staining. Results The degree of healing in the AMF group showed a significant increase over time (P < 0.05); the AMF group showed higher gross scores than the control group at 4, 8, and 12 weeks after surgery (P < 0.05). The histological scores in the AMF group were significantly higher than those in the control group at 4, 8, and 12 weeks after surgery (P < 0.05). The protein expression of PCNA in the AMF group was greater than that in the control group at 2, 4, and 8 weeks after surgery (P < 0.05). In addition, compared with the control group, the protein levels of COL1A1 and COL2 were significantly upregulated at each time-point. At 2 and 4 weeks after surgery, the expression level of COL1A1 increased in both groups followed by a gradual decrease after 8 weeks (P < 0.05). At 2, 4, 8, and 12 weeks after surgery, the expression levels of COL2 showed a gradual decrease in both groups (P < 0.05). Conclusions Our study demonstrated that the AMF method can promote the repair of rabbit meniscal injury in the avascular zone, and this method may potentially be used for clinical application. Supplementary Information The online version contains supplementary material available at 10.1186/s12893-022-01663-3.
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11
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Bian Y, Wang H, Zhao X, Weng X. Meniscus repair: up-to-date advances in stem cell-based therapy. Stem Cell Res Ther 2022; 13:207. [PMID: 35578310 PMCID: PMC9109379 DOI: 10.1186/s13287-022-02863-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/26/2022] [Indexed: 12/24/2022] Open
Abstract
The meniscus is a semilunar fibrocartilage between the tibia and femur that is essential for the structural and functional integrity of the keen joint. In addition to pain and knee joint dysfunction, meniscus injuries can also lead to degenerative changes of the knee joint such as osteoarthritis, which further affect patient productivity and quality of life. However, with intrinsic avascular property, the tearing meniscus tends to be nonunion and the augmentation of post-injury meniscus repair has long time been a challenge. Stem cell-based therapy with potent regenerative properties has recently attracted much attention in repairing meniscus injuries, among which mesenchymal stem cells were most explored for their easy availability, trilineage differentiation potential, and immunomodulatory properties. Here, we summarize the advances and achievements in stem cell-based therapy for meniscus repair in the last 5 years. We also highlight the obstacles before their successful clinical translation and propose some perspectives for stem cell-based therapy in meniscus repair.
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Affiliation(s)
- Yixin Bian
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Han Wang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Xiuli Zhao
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
| | - Xisheng Weng
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.
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12
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Terpstra ML, Li J, Mensinga A, de Ruijter M, van Rijen MHP, Androulidakis C, Galiotis C, Papantoniou I, Matsusaki M, Malda J, Levato R. Bioink with cartilage-derived extracellular matrix microfibers enables spatial control of vascular capillary formation in bioprinted constructs. Biofabrication 2022; 14. [PMID: 35354130 DOI: 10.1088/1758-5090/ac6282] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 03/30/2022] [Indexed: 11/11/2022]
Abstract
Microvasculature is essential for the exchange of gas and nutrient for most tissues in our body. Some tissue structures such as the meniscus presents spatially confined blood vessels adjacent to non-vascularized regions. In biofabrication, mimicking the spatial distribution of such vascular components is paramount, as capillary ingrowth into non-vascularized tissues can lead to tissue matrix alterations and subsequent pathology. Multi-material 3D bioprinting can potentially resolve anisotropic tissue features, although building complex constructs comprising stable vascularized and non-vascularized regions remains a major challenge. Here, we developed endothelial cell(EC)-laden pro- and anti-angiogenic bioinks, supplemented with bioactive matrix-derived microfibers (MFs) that were created from type I collagen sponges (col-1) and cartilage decellularized extracellular matrix (CdECM). EC-driven capillary network formation started two days after bioprinting. Supplementing cartilage-derived MFs to endothelial-cell laden bioinks reduced the total length of neo-microvessels by 29% after 14 days, compared to col-1 MFs-laden bioinks. As a proof of concept, the bioinks were bioprinted into an anatomical meniscus shape with a biomimetic vascularized outer and non-vascularized inner region, using a microgel suspension bath. The constructs were cultured up to 14 days, with in the outer zone the HUVEC-, mural cell-, and col-1 MF-laden pro-angiogenic bioink, and in the inner zone a meniscus progenitor cell (MPC)- and CdECM MF-laden anti-angiogenic bioink, revealing successful spatial confinement of the nascent vascular network only in the outer zone. Further, to co-facilitate both microvessel formation and MPC-derived matrix formation, we formulated cell culture medium conditions with a temporal switch. Overall, this study provides a new strategy that could be applied to develop zonal biomimetic meniscal constructs. Moreover, the use of ECM-derived MFs to promote or inhibit capillary networks opens new possibilities for the biofabrication of tissues with anisotropic microvascular distribution. These have potential for many applications including in vitro models, cancer progression, and testing anti-angiogenic therapies.
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Affiliation(s)
- Margo Luchiena Terpstra
- University Medical Centre Utrecht Department of Orthopedics, Heidelberglaan 100, Utrecht, 3584 CX, NETHERLANDS
| | - Jinyu Li
- Department of Applied Chemistry, Osaka University, Faculty of Engineering, Suita, Osaka 565-0871, Suita, Osaka, 565-0871, JAPAN
| | - Anneloes Mensinga
- Utrecht University Faculty of Veterinary Medicine, Heidelberglaan 8, Utrecht, Utrecht, 3584 CS, NETHERLANDS
| | - Mylène de Ruijter
- University Medical Centre Utrecht Department of Orthopedics, Heidelberglaan 100, Utrecht, Utrecht, 3584 CX, NETHERLANDS
| | - Mattie H P van Rijen
- Department of Orthopedics, Universitair Medisch Centrum Utrecht, Heidelberglaan 100, Utrecht, Utrecht, 3584 CX, NETHERLANDS
| | - Charalampos Androulidakis
- Department of Chemical Engineering, University of Patras, Stadiou Street, Platani, Patras, Periféria Dhitikís Elládh, 26504, GREECE
| | - Costas Galiotis
- Department Chemical EngineeringScience, University of Patras, Panepistimioupoli, Rio, GR-26504 Patras, Patra, Periféria Dhitikís Elládh, 26504, GREECE
| | - Ioannis Papantoniou
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Onderwijs en Navorsing 1, +10, Herestraat 49, box 813, Leuven, 3000, BELGIUM
| | - Michiya Matsusaki
- Department of Applied Chemistry, Osaka University, Faculty of Engineering, Suita, Osaka 565-0871, Suita, Osaka, 565-0871, JAPAN
| | - Jos Malda
- Orthopaedics, University Medical Centre Utrecht Department of Orthopedics, The Netherlands, Utrecht, 3508 GA, NETHERLANDS
| | - Riccardo Levato
- Utrecht University Faculty of Veterinary Medicine, Heidelberglaan 8, Utrecht, 3584 CS, NETHERLANDS
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13
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Prospective Application of Partially Digested Autologous Chondrocyte for Meniscus Tissue Engineering. Pharmaceutics 2022; 14:pharmaceutics14030605. [PMID: 35335980 PMCID: PMC8952194 DOI: 10.3390/pharmaceutics14030605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/06/2022] [Accepted: 03/07/2022] [Indexed: 01/10/2023] Open
Abstract
Background: Meniscus tissue engineering has yet to achieve clinical application because it requires chondrogenic induction and in vitro cell expansion. Contrarily, cartilage engineering from autologous chondrocytes has been successfully applied in one-stage surgery. If the natural chondrogenic potential of meniscus cells can be demonstrated, meniscus tissue engineering would have more value in clinical settings. Materials and Methods: In total, 10 menisci and pieces of cartilage were obtained during total knee replacements. The tissues were collected for cell isolation and expansion. Their chondrogenic properties were examined by immunohistofluorescence and gene expression analyses. Results: In native cartilage, immunofluorescence demonstrated the presence of collagen I, aggrecan, and traces of collagen I, whereas comparable staining was seen in the inner and middle meniscus. The presence of collagen I but the absence of collagen II and aggrecan were observed in the outer meniscus. In passage 2, chondrocytes showed the presence of collagen II and aggrecan, and the absence of vimentin. The vimentin and aggrecan staining were comparable in the inner and middle meniscus cells, whereas the outer cells showed only vimentin staining. In the gene expression analyses, the expressions of collagen II and aggrecan in the native chondrocyte and the inner and middle meniscus were higher than those of the cells from the outer meniscus, but they were not different in collagen I. In the passage 2 culture, chondrocytes had a higher expression of collagen II and aggrecan than the meniscus cells. Cells from the inner and middle areas had higher collagen II and aggrecan expression than those from the outer meniscus. Conclusion: Without chondrogenic induction, inner and middle meniscus cells possess a chondrogenic phenotype. Specifically, native meniscus cells exhibited more robust chondrogenic potential compared with those of the passage 2 monolayer culture.
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14
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Struijk C, Van Genechten W, Verdonk P, Krych AJ, Dietz AB, van Wijnen AJ, Saris DBF. Human meniscus allograft augmentation by allogeneic mesenchymal stromal/stem cell injections. J Orthop Res 2022; 40:712-726. [PMID: 33969529 PMCID: PMC8578587 DOI: 10.1002/jor.25074] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 04/18/2021] [Accepted: 04/26/2021] [Indexed: 02/04/2023]
Abstract
Meniscus allograft transplantations (MATs) represent established surgical procedures with proven outcomes. Yet, storage as frozen specimens and limited cellular repopulation may impair graft viability. This proof-of-concept study tests the feasibility of injecting allogeneic mesenchymal stromal/stem cells (MSCs) in meniscus allograft tissue. We investigated the injectable cell quantity, survival rate, migration, and proliferation ability of MSCs up to 28 days of incubation. In this controlled laboratory study, seven fresh-frozen human allografts were injected with human allogeneic MSCs. Cells were labeled and histological characteristics were microscopically imaged up to 28 days. Mock-injected menisci were included as negative controls in each experiment. Toluidine blue staining demonstrated that a 100-µl volume can be injected while retracting and rotating the inserted needle. Immediately after injection, labeled MSCs were distributed throughout the injection channel and eventually migrated into the surrounding tissues. Histological assessment revealed that MSCs cluster in disc-like shapes, parallel to the intrinsic lamination of the meniscus and around the vascular network. Quantification showed that more than 60% of cells were present in horizontally injected grafts and more than 30% were observed in vertically injected samples. On Day 14, cells adopted a spindle-shaped morphology and exhibited proliferative and migratory behaviors. On Day 28, live/dead ratio assessment revealed an approximately 80% cell survival. The study demonstrated the feasibility of injecting doses of MSCs (>0.1 million) in meniscus allograft tissue with active cell proliferation, migration, and robust cell survival.
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Affiliation(s)
- Caroline Struijk
- Orthopedics and Sports MedicineMayo ClinicRochesterMinnesotaUSA,Department of Orthopedic SurgeryAntwerp UniversityAntwerpBelgium
| | - Wouter Van Genechten
- Orthopedics and Sports MedicineMayo ClinicRochesterMinnesotaUSA,Department of Orthopedic SurgeryAntwerp UniversityAntwerpBelgium
| | - Peter Verdonk
- Department of Orthopedic SurgeryAntwerp UniversityAntwerpBelgium,ORTHOCAAntwerpBelgium
| | - Aaron J. Krych
- Orthopedics and Sports MedicineMayo ClinicRochesterMinnesotaUSA
| | - Allan B. Dietz
- Department of Laboratory Medicine and PathologyIMPACT; Mayo Clinic College of Medicine and ScienceRochesterMinnesotaUSA
| | | | - Daniel B. F. Saris
- Orthopedics and Sports MedicineMayo ClinicRochesterMinnesotaUSA,Orthopaedic SurgeryUniversity Medical Center UtrechtUtrechtThe Netherlands,Reconstructive MedicineUniversity of TwenteEnschedeThe Netherlands
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15
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Pattappa G, Reischl F, Jahns J, Schewior R, Lang S, Zellner J, Johnstone B, Docheva D, Angele P. Fibronectin Adherent Cell Populations Derived From Avascular and Vascular Regions of the Meniscus Have Enhanced Clonogenicity and Differentiation Potential Under Physioxia. Front Bioeng Biotechnol 2022; 9:789621. [PMID: 35155405 PMCID: PMC8831898 DOI: 10.3389/fbioe.2021.789621] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022] Open
Abstract
The meniscus is composed of an avascular inner region and vascular outer region. The vascular region has been shown to contain a progenitor population with multilineage differentiation capacity. Strategies facilitating the isolation and propagation of these progenitors can be used to develop cell-based meniscal therapies. Differential adhesion to fibronectin has been used to isolate progenitor populations from cartilage, while low oxygen or physioxia (2% oxygen) enhances the meniscal phenotype. This study aimed to isolate progenitor populations from the avascular and vascular meniscus using differential fibronectin adherence and examine their clonogenicity and differentiation potential under hyperoxia (20% oxygen) and physioxia (2% oxygen). Human vascular and avascular meniscus cells were seeded onto fibronectin-coated dishes for a short period and monitored for colony formation under either hyperoxia or physioxia. Non-fibronectin adherent meniscus cells were also expanded under both oxygen tension. Individual fibronectin adherent colonies were isolated and further expanded, until approximately ten population doublings (passage 3), whereby they underwent chondrogenic, osteogenic, and adipogenic differentiation. Physioxia enhances clonogenicity of vascular and avascular meniscus cells on plastic or fibronectin-coated plates. Combined differential fibronectin adhesion and physioxia isolated a progenitor population from both meniscus regions with trilineage differentiation potential compared to equivalent hyperoxia progenitors. Physioxia isolated progenitors had a significantly enhanced meniscus matrix content without the presence of collagen X. These results demonstrate that combined physioxia and fibronectin adherence can isolate and propagate a meniscus progenitor population that can potentially be used to treat meniscal tears or defects.
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Affiliation(s)
- Girish Pattappa
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
- *Correspondence: Girish Pattappa,
| | - Franziska Reischl
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
| | - Judith Jahns
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
| | - Ruth Schewior
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
| | - Siegmund Lang
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
| | - Johannes Zellner
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
- Sporthopaedicum Regensburg, Regensburg, Germany
| | - Brian Johnstone
- Department of Orthopaedics and Rehabilitation, Oregon Health and Science University, Portland, OR, United States
| | - Denitsa Docheva
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
- Department of Musculoskeletal Tissue Regeneration, Orthopaedic Hospital König-Ludwig-Haus, University of Wurzburg, Wurzburg, Germany
| | - Peter Angele
- Laboratory for Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
- Sporthopaedicum Regensburg, Regensburg, Germany
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16
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Stocco E, Porzionato A, De Rose E, Barbon S, Caro RD, Macchi V. Meniscus regeneration by 3D printing technologies: Current advances and future perspectives. J Tissue Eng 2022; 13:20417314211065860. [PMID: 35096363 PMCID: PMC8793124 DOI: 10.1177/20417314211065860] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/24/2021] [Indexed: 01/10/2023] Open
Abstract
Meniscal tears are a frequent orthopedic injury commonly managed by conservative
strategies to avoid osteoarthritis development descending from altered
biomechanics. Among cutting-edge approaches in tissue engineering, 3D printing
technologies are extremely promising guaranteeing for complex biomimetic
architectures mimicking native tissues. Considering the anisotropic
characteristics of the menisci, and the ability of printing over structural
control, it descends the intriguing potential of such vanguard techniques to
meet individual joints’ requirements within personalized medicine. This
literature review provides a state-of-the-art on 3D printing for meniscus
reconstruction. Experiences in printing materials/technologies, scaffold types,
augmentation strategies, cellular conditioning have been compared/discussed;
outcomes of pre-clinical studies allowed for further considerations. To date,
translation to clinic of 3D printed meniscal devices is still a challenge:
meniscus reconstruction is once again clear expression of how the integration of
different expertise (e.g., anatomy, engineering, biomaterials science, cell
biology, and medicine) is required to successfully address native tissues
complexities.
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Affiliation(s)
- Elena Stocco
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Padova, Italy
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria, Padova, Italy
| | - Andrea Porzionato
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Padova, Italy
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria, Padova, Italy
| | - Enrico De Rose
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Padova, Italy
| | - Silvia Barbon
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Padova, Italy
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria, Padova, Italy
| | - Raffaele De Caro
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Padova, Italy
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria, Padova, Italy
| | - Veronica Macchi
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Padova, Italy
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria, Padova, Italy
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17
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Yan W, Dai W, Cheng J, Fan Y, Zhao F, Li Y, Maimaitimin M, Cao C, Shao Z, Li Q, Liu Z, Hu X, Ao Y. Histologically Confirmed Recellularization is a Key Factor that Affects Meniscal Healing in Immature and Mature Meniscal Tears. Front Cell Dev Biol 2021; 9:793820. [PMID: 34957120 PMCID: PMC8692889 DOI: 10.3389/fcell.2021.793820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 11/23/2021] [Indexed: 11/24/2022] Open
Abstract
Healing outcomes of meniscal repair are better in younger than in older. However, exact mechanisms underlying superior healing potential in younger remain unclear from a histological perspective. This study included 24 immature rabbits and 24 mature rabbits. Tears were created in the anterior horn of medial meniscus of right knee in each rabbit. Animals were sacrificed at 1, 3, 6, and 12 weeks postoperatively. We performed macroscopic and histological evaluations of post-meniscal repair specimens. Cells were counted within a region of interest to confirm cellularization at tear site in immature menisci. The width of cell death zone was measured to determine the region of cell death in mature menisci. Apoptosis was evaluated by TUNEL assay. Vascularization was assessed by CD31 immunofluorescence. The glycosaminoglycans and the types 1 and 2 collagen content was evaluated by calculating average optical density of corresponding histological specimens. Cartilage degeneration was also evaluated. Healing outcomes following untreated meniscal tears were superior in immature group. Recellularization with meniscus-like cell morphology was observed at tear edge in immature menisci. Superior recellularization was observed at meniscal sites close to joint capsule than at sites distant from the capsule. Recellularization did not occur at tear site in mature group; however, we observed gradual enlargement of cell death zone. Apoptosis was presented at 1, 3, 6, 12 weeks in immature and mature menisci after untreated meniscal tears. Vascularization was investigated along the tear edges in immature menisci. Glycosaminoglycans and type 2 collagen deposition were negatively affected in immature menisci. We observed glycosaminoglycan degradation in mature menisci and cartilage degeneration, specifically in immature cartilage of the femoral condyle. In conclusion, compared with mature rabbits, immature rabbits showed more robust healing response after untreated meniscal tears. Vascularization contributed to the recellularization after meniscal tears in immature menisci. Meniscal injury fundamentally alters extracellular matrix deposition.
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Affiliation(s)
- Wenqiang Yan
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Wenli Dai
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Jin Cheng
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Yifei Fan
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Fengyuan Zhao
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Yuwan Li
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Maihemuti Maimaitimin
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Chenxi Cao
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Zhenxing Shao
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Qi Li
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Zhenlong Liu
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Xiaoqing Hu
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Yingfang Ao
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China.,Beijing Key Laboratory of Sports Injuries, Beijing, China
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18
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Testing Hypoxia in Pig Meniscal Culture: Biological Role of the Vascular-Related Factors in the Differentiation and Viability of Neonatal Meniscus. Int J Mol Sci 2021; 22:ijms222212465. [PMID: 34830345 PMCID: PMC8617958 DOI: 10.3390/ijms222212465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/13/2021] [Accepted: 11/15/2021] [Indexed: 12/13/2022] Open
Abstract
Menisci play an essential role in shock absorption, joint stability, load resistance and its transmission thanks to their conformation. Adult menisci can be divided in three zones based on the vascularization: an avascular inner zone with no blood supply, a fully vascularized outer zone, and an intermediate zone. This organization, in addition to the incomplete knowledge about meniscal biology, composition, and gene expression, makes meniscal regeneration still one of the major challenges both in orthopedics and in tissue engineering. To overcome this issue, we aimed to investigate the role of hypoxia in the differentiation of the three anatomical areas of newborn piglet menisci (anterior horn (A), central body (C), and posterior horn (P)) and its effects on vascular factors. After sample collection, menisci were divided in A, C, P, and they were cultured in vitro under hypoxic (1% O2) and normoxic (21% O2) conditions at four different experimental time points (T0 = day of explant; T7 = day 7; T10 = day 10; T14 = day 14); samples were then evaluated through immune, histological, and molecular analyses, cell morpho-functional characteristics; with particular focus on matrix composition and expression of vascular factors. It was observed that hypoxia retained the initial phenotype of cells and induced extracellular matrix production resembling a mature tissue. Hypoxia also modulated the expression of angiogenic factors, especially in the early phase of the study. Thus, we observed that hypoxia contributes to the fibro-chondrogenic differentiation with the involvement of angiogenic factors, especially in the posterior horn, which corresponds to the predominant weight-bearing portion.
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19
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Andress B, Kim JH, Cutcliffe HC, Amendola A, Goode AP, Varghese S, DeFrate LE, McNulty AL. Meniscus cell regional phenotypes: Dedifferentiation and reversal by biomaterial embedding. J Orthop Res 2021; 39:2177-2186. [PMID: 33325039 PMCID: PMC8203760 DOI: 10.1002/jor.24954] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 11/24/2020] [Accepted: 12/14/2020] [Indexed: 02/04/2023]
Abstract
Meniscus injuries are common and a major cause of long-term joint degeneration and disability. Current treatment options are limited, so novel regenerative therapies or tissue engineering strategies are urgently needed. The development of new therapies is hindered by a lack of knowledge regarding the cellular biology of the meniscus and a lack of well-established methods for studying meniscus cells in vitro. The goals of this study were to (1) establish baseline expression profiles and dedifferentiation patterns of inner and outer zone primary meniscus cells, and (2) evaluate the utility of poly(ethylene glycol) diacrylate (PEGDA) and gelatin methacrylate (GelMA) polymer hydrogels to reverse dedifferentiation trends for long-term meniscus cell culture. Using reverse transcription-quantitative polymerase chain reaction, we measured expression levels of putative meniscus phenotype marker genes in freshly isolated meniscus tissue, tissue explant culture, and monolayer culture of inner and outer zone meniscus cells from porcine knees to establish baseline dedifferentiation characteristics, and then compared these expression levels to PEGDA/GelMA embedded passaged meniscus cells. COL1A1 showed robust upregulation, while CHAD, CILP, and COMP showed downregulation with monolayer culture. Expression levels of COL2A1, ACAN, and SOX9 were surprisingly similar between inner and outer zone tissue and were found to be less sensitive as markers of dedifferentiation. When embedded in PEGDA/GelMA hydrogels, expression levels of meniscus cell phenotype genes were significantly modulated by varying the ratio of polymer components, allowing these materials to be tuned for phenotype restoration, meniscus cell culture, and tissue engineering applications.
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Affiliation(s)
| | | | - Hattie C. Cutcliffe
- Department of Orthopaedic Surgery, Duke University School of Medicine,Department of Biomedical Engineering, Duke University
| | | | - Adam P. Goode
- Department of Orthopaedic Surgery, Duke University School of Medicine,Duke Clinical Research Institute, Duke University School of Medicine,Department of Population Health Science, Duke University School of Medicine
| | - Shyni Varghese
- Department of Orthopaedic Surgery, Duke University School of Medicine,Department of Biomedical Engineering, Duke University,Department of Mechanical Engineering and Materials Science, Duke University
| | - Louis E. DeFrate
- Department of Orthopaedic Surgery, Duke University School of Medicine,Department of Biomedical Engineering, Duke University,Department of Mechanical Engineering and Materials Science, Duke University
| | - Amy L. McNulty
- Department of Pathology, Duke University School of Medicine,Department of Orthopaedic Surgery, Duke University School of Medicine,Address for Correspondence: Dr. Amy L. McNulty, Duke University School of Medicine, DUMC 3093, Durham NC 27710 USA, Phone: (919) 684-6882,
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20
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Klarmann GJ, Gaston J, Ho VB. A review of strategies for development of tissue engineered meniscal implants. BIOMATERIALS AND BIOSYSTEMS 2021; 4:100026. [PMID: 36824574 PMCID: PMC9934480 DOI: 10.1016/j.bbiosy.2021.100026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 08/17/2021] [Accepted: 08/25/2021] [Indexed: 12/09/2022] Open
Abstract
The meniscus is a key stabilizing tissue of the knee that facilitates proper tracking and movement of the knee joint and absorbs stresses related to physical activity. This review article describes the biology, structure, and functions of the human knee meniscus, common tears and repair approaches, and current research and development approaches using modern methods to fabricate a scaffold or tissue engineered meniscal replacement. Meniscal tears are quite common, often resulting from sports or physical training, though injury can result without specific contact during normal physical activity such as bending or squatting. Meniscal injuries often require surgical intervention to repair, restore basic functionality and relieve pain, and severe damage may warrant reconstruction using allograft transplants or commercial implant devices. Ongoing research is attempting to develop alternative scaffold and tissue engineered devices using modern fabrication techniques including three-dimensional (3D) printing which can fabricate a patient-specific meniscus replacement. An ideal meniscal substitute should have mechanical properties that are close to that of natural human meniscus, and also be easily adapted for surgical procedures and fixation. A better understanding of the organization and structure of the meniscus as well as its potential points of failure will lead to improved design approaches to generate a suitable and functional replacement.
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Affiliation(s)
- George J. Klarmann
- 4D Bio³ Center, Department of Radiology and Radiological Sciences, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd., Bethesda, MD 20814, USA,The Geneva Foundation, 917 Pacific Ave., Tacoma, WA 98402, USA,Corresponding author at: USU-4D Bio³ Center, 9410 Key West Ave., Rockville, MD 20850, USA.
| | - Joel Gaston
- 4D Bio³ Center, Department of Radiology and Radiological Sciences, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd., Bethesda, MD 20814, USA,The Geneva Foundation, 917 Pacific Ave., Tacoma, WA 98402, USA
| | - Vincent B. Ho
- 4D Bio³ Center, Department of Radiology and Radiological Sciences, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd., Bethesda, MD 20814, USA
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21
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Korpershoek JV, Rikkers M, de Windt TS, Tryfonidou MA, Saris DBF, Vonk LA. Selection of Highly Proliferative and Multipotent Meniscus Progenitors through Differential Adhesion to Fibronectin: A Novel Approach in Meniscus Tissue Engineering. Int J Mol Sci 2021; 22:ijms22168614. [PMID: 34445320 PMCID: PMC8395239 DOI: 10.3390/ijms22168614] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 12/26/2022] Open
Abstract
Meniscus injuries can be highly debilitating and lead to knee osteoarthritis. Progenitor cells from the meniscus could be a superior cell type for meniscus repair and tissue-engineering. The purpose of this study is to characterize meniscus progenitor cells isolated by differential adhesion to fibronectin (FN-prog). Human osteoarthritic menisci were digested, and FN-prog were selected by differential adhesion to fibronectin. Multilineage differentiation, population doubling time, colony formation, and MSC surface markers were assessed in the FN-prog and the total meniscus population (Men). Colony formation was compared between outer and inner zone meniscus digest. Chondrogenic pellet cultures were performed for redifferentiation. FN-prog demonstrated multipotency. The outer zone FN-prog formed more colonies than the inner zone FN-prog. FN-prog displayed more colony formation and a higher proliferation rate than Men. FN-prog redifferentiated in pellet culture and mostly adhered to the MSC surface marker profile, except for HLA-DR receptor expression. This is the first study that demonstrates differential adhesion to fibronectin for the isolation of a progenitor-like population from the meniscus. The high proliferation rates and ability to form meniscus extracellular matrix upon redifferentiation, together with the broad availability of osteoarthritis meniscus tissue, make FN-prog a promising cell type for clinical translation in meniscus tissue-engineering.
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Affiliation(s)
- Jasmijn V. Korpershoek
- Department of Orthopedics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands; (J.V.K.); (M.R.); (T.S.d.W.); (D.B.F.S.)
| | - Margot Rikkers
- Department of Orthopedics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands; (J.V.K.); (M.R.); (T.S.d.W.); (D.B.F.S.)
| | - Tommy S. de Windt
- Department of Orthopedics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands; (J.V.K.); (M.R.); (T.S.d.W.); (D.B.F.S.)
| | - Marianna A. Tryfonidou
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CL Utrecht, The Netherlands;
| | - Daniel B. F. Saris
- Department of Orthopedics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands; (J.V.K.); (M.R.); (T.S.d.W.); (D.B.F.S.)
- Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Reconstructive medicine, University of Twente, 7522 NB Enschede, The Netherlands
| | - Lucienne A. Vonk
- Department of Orthopedics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands; (J.V.K.); (M.R.); (T.S.d.W.); (D.B.F.S.)
- Correspondence: ; Tel.: +49-0-3328-4346-25
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22
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Sugimoto H, Murahashi Y, Chijimatsu R, Miwa S, Yano F, Tanaka S, Saito T. Primary culture of mouse adipose and fibrous synovial fibroblasts under normoxic and hypoxic conditions. Biomed Res 2021; 41:43-51. [PMID: 32092739 DOI: 10.2220/biomedres.41.43] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Synovial fibroblasts have attracted considerable attention in studies of joint diseases. Although mice are useful and powerful in in vitro and in vivo experiments, primary cultures of mouse synovial fibroblasts are notoriously difficult because the mouse synovial tissues are much smaller and cell cycle arrests can be induced more easily in murine cells than in human cells. Here, we report a precise protocol for the isolation and culture of fibroblasts from mouse adipose and fibrous knee joint synovia. In both adipose and fibrous synovial fibroblasts, proliferation was decreased in addition to a higher rate of cellular senescence under normoxic conditions (20% O2); however, it was maintained over 20 days with low cellular senescence under hypoxic conditions (3% O2). The marker gene expression in adipose and fibrous synovial fibroblasts was not markedly altered after a 3-week culture. Both cells displayed similar potencies for chondrogenic, osteogenic, and adipogenic differentiation, and responses to a proinflammatory cytokine. The present method provides a sufficient amount of mouse synovial fibroblasts for in vitro and in vivo experiments in joint biology and the pathophysiology of osteoarthritis and rheumatoid arthritis.
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Affiliation(s)
- Hikaru Sugimoto
- Faculty of Medicine, Graduate School of Medicine, The University of Tokyo
| | - Yasutaka Murahashi
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo
| | - Ryota Chijimatsu
- Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo
| | - Satoshi Miwa
- Faculty of Medicine, Graduate School of Medicine, The University of Tokyo
| | - Fumiko Yano
- Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo
| | - Sakae Tanaka
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo
| | - Taku Saito
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo
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23
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Development of a decellularized meniscus matrix-based nanofibrous scaffold for meniscus tissue engineering. Acta Biomater 2021; 128:175-185. [PMID: 33823327 DOI: 10.1016/j.actbio.2021.03.074] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 03/25/2021] [Accepted: 03/30/2021] [Indexed: 12/25/2022]
Abstract
The meniscus plays a critical role in knee mechanical function but is commonly injured given its central load bearing role. In the adult, meniscus repair is limited, given the low number of endogenous cells, the density of the matrix, and the limited vascularity. Menisci are fibrocartilaginous tissues composed of a micro-/nano- fibrous extracellular matrix (ECM) and a mixture of chondrocyte-like and fibroblast-like cells. Here, we developed a fibrous scaffold system that consists of bioactive components (decellularized meniscus ECM (dME) within a poly(e-caprolactone) material) fashioned into a biomimetic morphology (via electrospinning) to support and enhance meniscus cell function and matrix production. This work supports that the incorporation of dME into synthetic nanofibers increased hydrophilicity of the scaffold, leading to enhanced meniscus cell spreading, proliferation, and fibrochondrogenic gene expression. This work identifies a new biomimetic scaffold for therapeutic strategies to substitute or replace injured meniscus tissue. STATEMENT OF SIGNIFICANCE: In this study, we show that a scaffold electrospun from a combination of synthetic materials and bovine decellularized meniscus ECM provides appropriate signals and a suitable template for meniscus fibrochondrocyte spreading, proliferation, and secretion of collagen and proteoglycans. Material characterization and in vitro cell studies support that this new bioactive material is susceptible to enzymatic digestion and supports meniscus-like tissue formation.
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24
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Ikeda K, Otsuki S, Okuno N, Sezaki S, Nakagawa K, Miyamoto Y, Okamoto Y, Wakama H, Okayoshi T, Neo M. Development of a novel meniscal sheet scaffold and its effectiveness for meniscal regeneration in a rabbit defect model. J Biomater Appl 2021; 36:517-527. [PMID: 33691527 DOI: 10.1177/08853282211000523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study evaluated the biomechanical strength of a novel two-layer meniscal sheet scaffold (MSS) consisting of polyglycolic acid and poly-Llactic acid/caprolactone and investigated meniscal healing using wrapping treatment for meniscal defect model in a rabbit. The ultimate failure load of the MSS was determined using a tensile testing machine, in vitro. A 2-mm cylindrical defects were created at the medial meniscus of rabbit knees (n = 40). Each knee was assigned to one of two groups. The defect group was not treated and the MSS group underwent wrapping treatment with MSS. Menisci were harvested at 2, 4, 8, and 12 weeks post-implantation. The regenerated meniscus and defect size were evaluated using macrophotographs. Ishida scores for regenerated tissue were determined using Safranin-O/Fast Green staining. Immunohistochemical analysis of Ki-67 for cell proliferation, anti-type I and II collagen antibodies for structure of the regenerated tissue was elucidated. Medial femoral cartilage was stained with Safranin-O/Fast Green and evaluated with Osteoarthritis Research Society International (OARSI) scores. The strength of MSS was maintained over 90% from initial time point to 4 weeks after hydrolysis and over 60% of the strength remained at 8 weeks. The surface area of the meniscus was larger and the defect size smaller in the MSS group than in the defect group at 8 and 12 weeks. Ishida scores revealed that the MSS group improved significantly compared to that of the defect group at all postsurgery time points evaluated. Ki-67 positive cell ratio was significantly higher in the MSS group. OARSI score of the defect group was significantly higher and the defect group showed progressive degeneration in the articular cartilage from 8 to 12 weeks. Overall, wrapping meniscus defects with MSS was useful for accelerating meniscal healing from an early stage and beneficial for tissue regeneration and promoting extracellular matrix maturation.
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Affiliation(s)
- Kuniaki Ikeda
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Shuhei Otsuki
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Nobuhiro Okuno
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | | | - Kosuke Nakagawa
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Yuki Miyamoto
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Yoshinori Okamoto
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Hitoshi Wakama
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Tomohiro Okayoshi
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Masashi Neo
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
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25
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Engineered human meniscus' matrix-forming phenotype is unaffected by low strain dynamic compression under hypoxic conditions. PLoS One 2021; 16:e0248292. [PMID: 33690647 PMCID: PMC7946300 DOI: 10.1371/journal.pone.0248292] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 02/23/2021] [Indexed: 02/07/2023] Open
Abstract
Low oxygen and mechanical loading may play roles in regulating the fibrocartilaginous phenotype of the human inner meniscus, but their combination in engineered tissues remains unstudied. Here, we investigated how continuous low oxygen (“hypoxia”) combined with dynamic compression would affect the fibrocartilaginous “inner meniscus-like” matrix-forming phenotype of human meniscus fibrochondrocytes (MFCs) in a porous type I collagen scaffold. Freshly-seeded MFC scaffolds were cultured for 4 weeks in either 3 or 20% O2 or pre-cultured for 2 weeks in 3% O2 and then dynamically compressed for 2 weeks (10% strain, 1 Hz, 1 h/day, 5 days/week), all with or without TGF-β3 supplementation. TGF-β3 supplementation was found necessary to induce matrix formation by MFCs in the collagen scaffold regardless of oxygen tension and application of the dynamic compression loading regime. Neither hypoxia under static culture nor hypoxia combined with dynamic compression had significant effects on expression of specific protein and mRNA markers for the fibrocartilaginous matrix-forming phenotype. Mechanical properties significantly increased over the two-week loading period but were not different between static and dynamic-loaded tissues after the loading period. These findings indicate that 3% O2 applied immediately after scaffold seeding and dynamic compression to 10% strain do not affect the fibrocartilaginous matrix-forming phenotype of human MFCs in this type I collagen scaffold. It is possible that a delayed hypoxia treatment and an optimized pre-culture period and loading regime combination would have led to different outcomes.
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26
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Johnson PM, Knewtson KE, Hodge JG, Lehtinen JM, Trofimoff AS, Fritz DJ, Robinson JL. Surfactant location and internal phase volume fraction dictate emulsion electrospun fiber morphology and modulate drug release and cell response. Biomater Sci 2021; 9:1397-1408. [PMID: 33393536 PMCID: PMC7904618 DOI: 10.1039/d0bm01751e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
Emulsion electrospinning is a versatile technique used to create fibrous meshes for applications in drug delivery and tissue engineering. In this study, the effects of surfactant and increasing internal phase volume fraction on emulsion electrospun fiber morphology were investigated. The fiber diameter, surface topography, internal architecture, mesh hydrophobicity, and fiber volume fraction were all characterized and the resulting effects on model drug release and cell response were determined. Surfactant relocation to the fiber surface resulted in alterations to fiber surface topography and internal morphology, increased rate of water adsorption into the mesh, and reduced burst effects of drug release. Increasing the internal phase volume fraction within the emulsion resulted in minimal change to fiber diameter, surface morphology, fiber volume fraction, and rate of water adsorption illustrating the ability to increase drug loading without affecting fiber properties. Lastly, all meshes promoted cell adhesion and good viability with a trend of increased MTT absorbance from cells on the surfactant and emulsion fibers possibly suggesting that an increase in surface area via smaller fiber diameter and fiber volume fraction increases metabolic activity. Overall, these studies indicate that fiber morphology and mesh hydrophobicity can be tuned by controlling surfactant location within fibers and internal phase volume fraction. Modulating fiber properties within the emulsion electrospun mesh is important to achieve controlled drug release and cell response for tissue engineering applications.
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Affiliation(s)
| | - Kelsey E Knewtson
- Department of Chemical and Petroleum Engineering, University of Kansas, USA
| | - Jacob G Hodge
- Bioengineering Graduate Program, University of Kansas, USA.
| | - Justin M Lehtinen
- Department of Chemical and Petroleum Engineering, University of Kansas, USA
| | - Anna S Trofimoff
- Department of Chemical and Petroleum Engineering, University of Kansas, USA
| | - D Joseph Fritz
- Department of Chemical and Petroleum Engineering, University of Kansas, USA
| | - Jennifer L Robinson
- Bioengineering Graduate Program, University of Kansas, USA. and Department of Chemical and Petroleum Engineering, University of Kansas, USA
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27
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Kara A, Koçtürk S, Bilici G, Havitcioglu H. Development of biological meniscus scaffold: Decellularization method and recellularization with meniscal cell population derived from mesenchymal stem cells. J Biomater Appl 2021; 35:1192-1207. [PMID: 33444085 DOI: 10.1177/0885328220981189] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tissue engineering approaches which include a combination of cells and scaffold materials provide an alternative treatment for meniscus regeneration. Decellularization and recellularization techniques are potential treatment options for transplantation. Maintenance of the ultrastructure composition of the extracellular matrix and repopulation with cells are important factors in constructing a biological scaffold and eliminating immunological reactions.The aim of the study is to develop a method to obtain biological functional meniscus scaffolds for meniscus regeneration. For this purpose, meniscus tissue was decellularized by our modified method, a combination of physical, chemical, and enzymatic methods and then recellularized with a meniscal cell population composed of fibroblasts, chondrocytes and fibrochondrocytes that obtained from mesenchymal stem cells. Decellularized and recellularized meniscus scaffolds were analysed biochemically, biomechanically and histologically. Our results revealed that cellular components of the meniscus were successfully removed by preserving collagen and GAG structures without any significant loss in biomechanical properties. Recellularization results showed that the meniscal cells were localized in the empty lacuna on the decellularized meniscus, and also well distributed and proliferated consistently during the cell culture period (p < 0.05). Furthermore, a high amount of DNA, collagen, and GAG contents (p < 0.05) were obtained with the meniscal cell population in recellularized meniscus tissue.The study demonstrates that our decellularization and recellularization methods were effective to develop a biological functional meniscus scaffold and can mimic the meniscus tissue with structural and biochemical features. We predict that the obtained biological meniscus scaffolds may provide avoidance of adverse immune reactions and an appropriate microenvironment for allogeneic or xenogeneic recipients in the transplantation process. Therefore, as a promising candidate, the obtained biological meniscus scaffolds might be verified with a transplantation experiment.
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Affiliation(s)
- Aylin Kara
- Department of Bioengineering, İzmir Institute of Technology, İzmir, Turkey
| | - Semra Koçtürk
- Faculty of Medicine, Department of Biochemistry, Dokuz Eylül University, İzmir, Turkey
| | - Gokcen Bilici
- Faculty of Medicine, Department of Biochemistry, Dokuz Eylül University, İzmir, Turkey
| | - Hasan Havitcioglu
- Department of Bioengineering, İzmir Institute of Technology, İzmir, Turkey
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28
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Okuno N, Otsuki S, Aoyama J, Nakagawa K, Murakami T, Ikeda K, Hirose Y, Wakama H, Okayoshi T, Okamoto Y, Hirano Y, Neo M. Feasibility of a self-assembling peptide hydrogel scaffold for meniscal defect: An in vivo study in a rabbit model. J Orthop Res 2021; 39:165-176. [PMID: 32852842 DOI: 10.1002/jor.24841] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 06/19/2020] [Accepted: 08/18/2020] [Indexed: 02/04/2023]
Abstract
The inner avascular zone of the meniscus has limited healing capacity as the area is poorly vascularized. Although peptide hydrogels have been reported to regenerate bone and cartilage, their effect on meniscus regeneration remains unknown. We tested whether the self-assembling peptide hydrogel scaffold KI24RGDS stays in the meniscal lesion and facilitates meniscal repair and regeneration in an induced rabbit meniscal defect model. Full-thickness (2.0 mm diameter) cylindrical defects were introduced into the inner avascular zones of the anterior portions of the medial menisci of rabbit knees (n = 40). Right knee defects were left empty (control group) while the left knee defects were transplanted with peptide hydrogel (KI24RGDS group). Macroscopic meniscus scores were significantly higher in the KI24RGDS group than in the control group at 2, 4, and 8 weeks after surgery. Histological examinations including quantitative and qualitative scores indicated that compared with the control group, the reparative tissue in the meniscus was significantly enhanced in the KI24RGDS group at 2, 4, 8, and 12 weeks after surgery. Immunohistochemical staining showed that the reparative tissue induced by KI24RGDS at 12 weeks postimplantation was positive for Type I and II collagen. KI24RGDS is highly biocompatible and biodegradable, with strong stiffness, and a three dimensional structure mimicking native extracellular matrix and RGDS sequences that enhance cell adhesion and proliferation. This in vivo study demonstrated that KI24RGDS remained in the meniscal lesion and facilitated the repair and regeneration in a rabbit meniscal defect model.
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Affiliation(s)
- Nobuhiro Okuno
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Shuhei Otsuki
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Jo Aoyama
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials, and Bioengineering, Kansai University, Osaka, Japan
| | - Kosuke Nakagawa
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Tomohiko Murakami
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Kuniaki Ikeda
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | | | - Hitoshi Wakama
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Tomohiro Okayoshi
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Yoshinori Okamoto
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
| | - Yoshiaki Hirano
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials, and Bioengineering, Kansai University, Osaka, Japan
| | - Masashi Neo
- Department of Orthopedic Surgery, Osaka Medical College, Osaka, Japan
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29
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Wang J, Roberts S, Kuiper JH, Zhang W, Garcia J, Cui Z, Wright K. Characterization of regional meniscal cell and chondrocyte phenotypes and chondrogenic differentiation with histological analysis in osteoarthritic donor-matched tissues. Sci Rep 2020; 10:21658. [PMID: 33303888 PMCID: PMC7730426 DOI: 10.1038/s41598-020-78757-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 11/12/2020] [Indexed: 02/07/2023] Open
Abstract
Meniscus degeneration is closely related to the progression of knee osteoarthritis (OA). However, there is currently a lack of quantitative and objective metrics to assess OA meniscal cell phenotypes. In this study we investigated the phenotypic markers and chondrogenic potency of avascular and vascular meniscal cells and chondrocytes from medial OA knee joints (n = 10). Flow cytometry results showed that a significantly greater percentage of meniscal cells were positive for CD49b, CD49c and CD166 compared to donor-matched chondrocytes after 14 days in monolayer culture. The integrins, CD49b and CD29, were expressed at a significantly higher level on avascular meniscal cells derived from tissues with a more degenerated inner border than non-degenerate menisci, suggesting that the integrin family may play an important role in meniscus OA pathology. Collagen fibres arranged in a "tree-like" formation within the meniscus appeared to have less blood vessels associated with them in the vascular region of the most degenerate menisci, which may indicate that such structures are involved in the pathological process. We have demonstrated that meniscal cells derived from the lateral meniscus in medial OA patients have chondrogenic capacity in vitro and hence could represent a potential cell source to consider for meniscus tissue engineering.
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Affiliation(s)
- Jingsong Wang
- School of Pharmacy and Bioengineering, Keele University, Keele, ST5 5GB, Staffordshire, UK
- The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, SY10 7AG, Shropshire, UK
- Dalian Medical University, Dalian, 116044, China
| | - Sally Roberts
- School of Pharmacy and Bioengineering, Keele University, Keele, ST5 5GB, Staffordshire, UK
- The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, SY10 7AG, Shropshire, UK
| | - Jan Herman Kuiper
- School of Pharmacy and Bioengineering, Keele University, Keele, ST5 5GB, Staffordshire, UK
- The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, SY10 7AG, Shropshire, UK
| | - Weiguo Zhang
- Department of Orthopaedic Surgery, First Affiliated Hospital, Dalian Medical University, Dalian, 116011, China
| | - John Garcia
- School of Pharmacy and Bioengineering, Keele University, Keele, ST5 5GB, Staffordshire, UK
- The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, SY10 7AG, Shropshire, UK
| | - Zhanfeng Cui
- Department of Engineering Science, Institute of Biomedical Engineering, University of Oxford, Oxford, OX1 3PJ, UK
| | - Karina Wright
- School of Pharmacy and Bioengineering, Keele University, Keele, ST5 5GB, Staffordshire, UK.
- The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, SY10 7AG, Shropshire, UK.
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Costa JB, Park J, Jorgensen AM, Silva-Correia J, Reis RL, Oliveira JM, Atala A, Yoo JJ, Lee SJ. 3D Bioprinted Highly Elastic Hybrid Constructs for Advanced Fibrocartilaginous Tissue Regeneration. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2020; 32:8733-8746. [PMID: 34295019 PMCID: PMC8294671 DOI: 10.1021/acs.chemmater.0c03556] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Advanced strategies to bioengineer a fibrocartilaginous tissue to restore the function of the meniscus are necessary. Currently, 3D bioprinting technologies have been employed to fabricate clinically relevant patient-specific complex constructs to address unmet clinical needs. In this study, a highly elastic hybrid construct for fibrocartilaginous regeneration is produced by co-printing a cell-laden gellan gum/fibrinogen (GG/FB) composite bioink together with a silk fibroin methacrylate (Sil-MA) bioink in an interleaved crosshatch pattern. We characterize each bioink formulation by measuring the rheological properties, swelling ratio, and compressive mechanical behavior. For in vitro biological evaluations, porcine primary meniscus cells (pMCs) are isolated and suspended in the GG/FB bioink for the printing process. The results show that the GG/FB bioink provides a proper cellular microenvironment for maintaining the cell viability and proliferation capacity, as well as the maturation of the pMCs in the bioprinted constructs, while the Sil-MA bioink offers excellent biomechanical behavior and structural integrity. More importantly, this bioprinted hybrid system shows the fibrocartilaginous tissue formation without a dimensional change in a mouse subcutaneous implantation model during the 10-week postimplantation. Especially, the alignment of collagen fibers is achieved in the bioprinted hybrid constructs. The results demonstrate this bioprinted mechanically reinforced hybrid construct offers a versatile and promising alternative for the production of advanced fibrocartilaginous tissue.
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Affiliation(s)
- João B. Costa
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
- 3B’s Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Jihoon Park
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Adam M. Jorgensen
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Joana Silva-Correia
- 3B’s Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Rui L. Reis
- 3B’s Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Joaquim M. Oliveira
- 3B’s Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - James J. Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
- Corresponding authors. Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States., James J. Yoo, MD, PhD and Sang Jin Lee, PhD, (J. J. Yoo), (S. J. Lee)
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
- Corresponding authors. Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States., James J. Yoo, MD, PhD and Sang Jin Lee, PhD, (J. J. Yoo), (S. J. Lee)
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Grogan SP, Baek J, D'Lima DD. Meniscal tissue repair with nanofibers: future perspectives. Nanomedicine (Lond) 2020; 15:2517-2538. [PMID: 32975146 DOI: 10.2217/nnm-2020-0183] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The knee menisci are critical to the long-term health of the knee joint. Because of the high incidence of injury and degeneration, replacing damaged or lost meniscal tissue is extremely clinically relevant. The multiscale architecture of the meniscus results in unique biomechanical properties. Nanofibrous scaffolds are extremely attractive to replicate the biochemical composition and ultrastructural features in engineered meniscus tissue. We review recent advances in electrospinning to generate nanofibrous scaffolds and the current state-of-the-art of electrospun materials for meniscal regeneration. We discuss the importance of cellular function for meniscal tissue engineering and the application of cells derived from multiple sources. We compare experimental models necessary for proof of concept and to support translation. Finally, we discuss future directions and potential for technological innovations.
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Affiliation(s)
- Shawn P Grogan
- Shiley Center for Orthopedic Research & Education at Scripps Clinic 10666 North Torrey Pines Road, MS126, La Jolla, CA 92037, USA.,Department of Molecular Medicine, Scripps Research, 10550 North Torrey Pines Road, MB-102, La Jolla, CA 92037, USA
| | - Jihye Baek
- Shiley Center for Orthopedic Research & Education at Scripps Clinic 10666 North Torrey Pines Road, MS126, La Jolla, CA 92037, USA.,Department of Molecular Medicine, Scripps Research, 10550 North Torrey Pines Road, MB-102, La Jolla, CA 92037, USA
| | - Darryl D D'Lima
- Shiley Center for Orthopedic Research & Education at Scripps Clinic 10666 North Torrey Pines Road, MS126, La Jolla, CA 92037, USA.,Department of Molecular Medicine, Scripps Research, 10550 North Torrey Pines Road, MB-102, La Jolla, CA 92037, USA
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Rai MF, Brophy RH, Rosen V. Molecular biology of meniscus pathology: Lessons learned from translational studies and mouse models. J Orthop Res 2020; 38:1895-1904. [PMID: 32068295 PMCID: PMC7802285 DOI: 10.1002/jor.24630] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 02/11/2020] [Indexed: 02/04/2023]
Abstract
Injury to any individual structure in the knee interrupts the overall function of the joint and initiates a cascade of biological and biomechanical changes whose endpoint is often osteoarthritis (OA). The knee meniscus is an integral component of knee biomechanics and may also contribute to the biological homeostasis of the joint. Meniscus injury altering knee function is associated with a high risk of OA progression, and may also be involved in the initiation of OA. As the relationship between meniscus injury and OA is very complex; despite the availability of transcript level data on human meniscus injury and meniscus mediated OA, mechanistic studies are lacking, and available human data are difficult to validate in the absence of patient-matched noninjured control tissues. As similarities exist between human and mouse knee joint structure and function, investigators have begun to use cutting-edge genetic and genomic tools to examine the usefulness of the mouse as a model to study the intricate relationship between meniscus injury and OA. In this review, we use evidence from human meniscus research to identify critical barriers hampering our understanding of meniscus injury induced OA and discuss strategies to overcome these barriers, including those that can be examined in a mouse model of injury-mediated OA.
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Affiliation(s)
- Muhammad Farooq Rai
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO, United States of America,Department of Cell Biology & Physiology, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Robert H. Brophy
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Vicki Rosen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, United States of America
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Van Genechten W, Verdonk P, Krych AJ, Saris DB. Biologic Adjuvants in Meniscus Repair: A Review of Current Translational and Clinical Evidence. OPER TECHN SPORT MED 2020. [DOI: 10.1016/j.otsm.2020.150758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Carlson Strother CR, Saris DBF, Verdonk P, Nakamura N, Krych AJ. Biological augmentation to promote meniscus repair: from basic science to clinic application—state of the art. J ISAKOS 2020. [DOI: 10.1136/jisakos-2019-000426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kim W, Onodera T, Kondo E, Terkawi MA, Homan K, Hishimura R, Iwasaki N. Which Contributes to Meniscal Repair, the Synovium or the Meniscus? An In Vivo Rabbit Model Study With the Freeze-Thaw Method. Am J Sports Med 2020; 48:1406-1415. [PMID: 32105507 DOI: 10.1177/0363546520906140] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND During meniscal tissue repair, the origin of the reparative cells of damaged meniscal tissue remains unclear. HYPOTHESIS Comparison of the influence between meniscal and synovial tissues on meniscal repair by the in vivo freeze-thaw method would clarify the origin of meniscal reparative cells. STUDY DESIGN Controlled laboratory study. METHODS A total of 48 mature Japanese white rabbits were divided into 4 groups according to the tissue (meniscal or synovial) that received freeze-thaw treatment. The meniscus of each group had a 2 mm-diameter cylindrical defect filled with alginate gel. Macroscopic and histologic evaluations of the reparative tissues were performed at 1, 3, and 6 weeks postoperatively. Additional postoperative measurements included cell density, which was the number of meniscal cells in the cut area per cut area (mm2) of meniscus; cell density ratio, which was the cell density of the sample from each group per the average cell density of the intact meniscus; and cell death rate, which was the number of cells stained by propidium iodide per the number of cells stained by Hoechst 33342 of the meniscal tissue adjacent to the defect. RESULTS The macroscopic and histologic evaluations of the non-synovium freeze-thaw groups were significantly superior to those of the synovium freeze-thaw groups at 3 and 6 weeks postoperatively. Additionally, the meniscal cell density ratio and cell death rate in the freeze-thaw groups were significantly lower than those in the non-meniscal freeze-thaw groups at 3 and 6 weeks postoperatively. CONCLUSION The freeze-thawed meniscus recovered few cells in its tissue even after 6 weeks. However, the defect was filled with fibrochondrocytes and proteoglycan when the synovium was intact. On the basis of these results, it is concluded that synovial cells are the primary contributors to meniscal injury repair. CLINICAL RELEVANCE In meniscal tissue engineering, there is no consensus on the best cell source for meniscal repair. Based on this study, increasing the synovial activity and contribution should be the main objective of meniscal tissue engineering. This study can establish the foundation for future meniscal tissue engineering.
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Affiliation(s)
- WooYoung Kim
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tomohiro Onodera
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.,Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Japan
| | - Eiji Kondo
- Centre for Sports Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Mohamad Alaa Terkawi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.,Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Japan
| | - Kentaro Homan
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Ryosuke Hishimura
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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Anderson-Baron M, Kunze M, Mulet-Sierra A, Adesida AB. Effect of cell seeding density on matrix-forming capacity of meniscus fibrochondrocytes and nasal chondrocytes in meniscus tissue engineering. FASEB J 2020; 34:5538-5551. [PMID: 32090374 DOI: 10.1096/fj.201902559r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 02/04/2020] [Accepted: 02/13/2020] [Indexed: 12/11/2022]
Abstract
The presence of intact menisci is imperative for the proper function of the knee joint. Meniscus injuries are often treated by the surgical removal of the damaged tissue, which increases the likelihood of post-traumatic osteoarthritis. Tissue engineering holds great promise in producing viable engineered meniscal tissue for implantation using the patient's own cells; however, the cell source for producing the engineered tissue is unclear. Nasal chondrocytes (NC) possess many attractive features for engineering meniscus. However, in order to validate the use of NC for engineering meniscus fibrocartilage, a thorough comparison of NC and meniscus fibrochondrocytes (MFC) must be considered. Our study presents an analysis of the relative features of NC and MFC and their respective chondrogenic potential in a pellet culture model. We showed considerable differences in the cartilage tissue formed by the two different cell types. Our data showed that NC were more proliferative in culture, deposited more extracellular matrix, and showed higher expression of chondrogenic genes than MFC. Overall, our data suggest that NC produce superior cartilage tissue to MFC in a pellet culture model. In addition, NCs produce higher quality cartilage tissue at higher cell seeding densities during cell expansion.
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Affiliation(s)
- Matthew Anderson-Baron
- Department of Surgery, Divisions of Orthopaedic Surgery and Surgical Research, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada.,Laboratory of Stem Cell Biology and Orthopaedic Tissue Engineering, 3-021 Li Ka Shing Centre for Health Research Innovation, Edmonton, AB, Canada
| | - Melanie Kunze
- Department of Surgery, Divisions of Orthopaedic Surgery and Surgical Research, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada.,Laboratory of Stem Cell Biology and Orthopaedic Tissue Engineering, 3-021 Li Ka Shing Centre for Health Research Innovation, Edmonton, AB, Canada
| | - Aillette Mulet-Sierra
- Department of Surgery, Divisions of Orthopaedic Surgery and Surgical Research, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada.,Laboratory of Stem Cell Biology and Orthopaedic Tissue Engineering, 3-021 Li Ka Shing Centre for Health Research Innovation, Edmonton, AB, Canada
| | - Adetola B Adesida
- Department of Surgery, Divisions of Orthopaedic Surgery and Surgical Research, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada.,Laboratory of Stem Cell Biology and Orthopaedic Tissue Engineering, 3-021 Li Ka Shing Centre for Health Research Innovation, Edmonton, AB, Canada
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Jacob G, Shimomura K, Krych AJ, Nakamura N. The Meniscus Tear: A Review of Stem Cell Therapies. Cells 2019; 9:E92. [PMID: 31905968 PMCID: PMC7016630 DOI: 10.3390/cells9010092] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/20/2019] [Accepted: 12/28/2019] [Indexed: 02/07/2023] Open
Abstract
Meniscal injuries have posed a challenging problem for many years, especially considering that historically the meniscus was considered to be a structure with no important role in the knee joint. This led to earlier treatments aiming at the removal of the entire structure in a procedure known as a meniscectomy. However, with the current understanding of the function and roles of the meniscus, meniscectomy has been identified to accelerate joint degradation significantly and is no longer a preferred treatment option in meniscal tears. Current therapies are now focused to regenerate, repair, or replace the injured meniscus to restore its native function. Repairs have improved in technique and materials over time, with various implant devices being utilized and developed. More recently, strategies have applied stem cells, tissue engineering, and their combination to potentiate healing to achieve superior quality repair tissue and retard the joint degeneration associated with an injured or inadequately functioning meniscus. Accordingly, the purpose of this current review is to summarize the current available pre-clinical and clinical literature using stem cells and tissue engineering for meniscal repair and regeneration.
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Affiliation(s)
- George Jacob
- Department and Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan; (G.J.); (K.S.)
| | - Kazunori Shimomura
- Department and Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan; (G.J.); (K.S.)
| | - Aaron J. Krych
- Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Norimasa Nakamura
- Institute for Medical Science in Sports, Osaka Health Science University, Osaka 530-0043, Japan
- Global Centre for Medical Engineering and Informatics, Osaka University, Osaka 565-0871, Japan
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Cell sources of inflammatory mediators present in bone marrow areas inside the meniscus. PLoS One 2019; 14:e0226986. [PMID: 31860662 PMCID: PMC6924665 DOI: 10.1371/journal.pone.0226986] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 12/09/2019] [Indexed: 02/07/2023] Open
Abstract
Purpose To demonstrate the production of inflammatory mediators by cells located in bone marrow spaces inside rodent menisci. Methods Mice subjected to transection of the medial collateral and anterior cruciate ligaments and meniscotomy (osteoarthritis model) or to a sham procedure, as well as non-operated (naive) mice and rats, had knee joints excised. Tissues were stained with hematoxylin-eosin and tartrate-resistant acid phosphatase (TRAP). CD68+ cells, inducible nitric oxide synthase (iNOS), interleukin (IL)-1β, and tumor necrosis factor (TNF) expression were detected using immunohistochemistry. Results Lamellar ossified areas, bone-entrapped osteocytes and bone marrow spaces were found inside menisci of one week up to 6 months-old naïve mice, regardless of gender. Menisci from naive rats also showed the same pattern with bone marrow areas. CD68+ cells were identified in bone marrow areas inside the meniscus of mice. TRAP+ osteoclasts, and hematogenous precursors expressing IL-1β, TNF, and iNOS were identified inside bone marrow areas in meniscal samples from both naïve and sham operated mice. Quantitative immunoexpression of IL-1 β, TNF and iNOS was more intense, P = 0.0194, 0.0293, 0.0124, respectively, in mouse knees from mice sacrificed 49 days after being subjected to an osteoarthritis (OA) model as compared to sham operated animals. Conclusion We provide novel data showing that rodent menisci display bone marrow areas with cells able to produce inflammatory mediators. Immunoexpression of inflammatory mediators in those bone marrow areas is significantly more pronounced in mice subjected to experimental OA
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Huan X, Jinhe Y, Rongzong Z. Identification of Pivotal Genes and Pathways in Osteoarthritic Degenerative Meniscal Lesions via Bioinformatics Analysis of the GSE52042 Dataset. Med Sci Monit 2019; 25:8891-8904. [PMID: 31758856 PMCID: PMC6884941 DOI: 10.12659/msm.920636] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background To better understand the process of osteoarthritic degenerative meniscal lesions (DMLs) formation, this study analyzed the dataset GSE52042 using bioinformatics methods to identify the pivotal genes and pathways related to osteoarthritic DMLs. Material/Methods The GSE52042 dataset, comprising diseased meniscus samples and healthier meniscus samples, was downloaded and the differentially-expressed genes (DEGs) were extracted. The reactome pathways assessment and functional analysis were performed using the “ClusterProfiler” package and “ReactomePA” package of Bioconductor. The protein–protein interaction network was constructed, followed by the extraction of hub genes and modules. Results A set of 154 common DEGs, including 64 upregulated DEGs and 90 downregulated DEGs, were obtained. GO analysis suggested that the DEGs primarily participated in positive regulation of the mitotic cell cycle and extracellular matrix organization. Reactome pathway analysis showed that the DEGs were predominantly enriched in TP53, which regulates transcription of genes involved in G2 cell cycle arrest and extracellular matrix organization. The top 10 hub genes were TYMS, AURKA, CENPN, NUSAP1, CENPM, TPX2, CDK1, UBE2C, BIRC5, and CCNB1. The genes in the 2 modules were primarily associated with M Phase and keratan sulfate degradation. Conclusions A series of pivotal genes and reactome pathways were identified elucidate the molecular mechanisms involved in the formation of osteoarthritic DMLs and to discover potential therapeutic targets.
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Affiliation(s)
- Xu Huan
- Department of Joint Surgery, Lishui Municipal Central Hospital, Lishui, Zhejiang, China (mainland)
| | - Ying Jinhe
- Department of Joint Surgery, Lishui Municipal Central Hospital, Lishui, Zhejiang, China (mainland)
| | - Zheng Rongzong
- Department of Joint Surgery, Lishui Municipal Central Hospital, Lishui, Zhejiang, China (mainland)
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40
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Murphy CA, Garg AK, Silva-Correia J, Reis RL, Oliveira JM, Collins MN. The Meniscus in Normal and Osteoarthritic Tissues: Facing the Structure Property Challenges and Current Treatment Trends. Annu Rev Biomed Eng 2019; 21:495-521. [DOI: 10.1146/annurev-bioeng-060418-052547] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The treatment of meniscus injuries has recently been facing a paradigm shift toward the field of tissue engineering, with the aim of regenerating damaged and diseased menisci as opposed to current treatment techniques. This review focuses on the structure and mechanics associated with the meniscus. The meniscus is defined in terms of its biological structure and composition. Biomechanics of the meniscus are discussed in detail, as an understanding of the mechanics is fundamental for the development of new meniscal treatment strategies. Key meniscal characteristics such as biological function, damage (tears), and disease are critically analyzed. The latest technologies behind meniscal repair and regeneration are assessed.
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Affiliation(s)
- Caroline A. Murphy
- Stokes Laboratories, Bernal Institute, School of Engineering, University of Limerick, Limerick V94 PC82, Ireland
| | - Atul K. Garg
- Manufacturing Technology and Innovation Global Supply Chain, Johnson & Johnson, Bridgewater, New Jersey 08807, USA
| | - Joana Silva-Correia
- 3B's Research Group, I3B's: Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho and Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B's: PT Government Associate Laboratory, 4710-057 Braga, Guimarães, Portugal
| | - Rui L. Reis
- 3B's Research Group, I3B's: Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho and Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B's: PT Government Associate Laboratory, 4710-057 Braga, Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, University of Minho, 4805-017 Barco, Guimarães, Portugal
| | - Joaquim M. Oliveira
- 3B's Research Group, I3B's: Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho and Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B's: PT Government Associate Laboratory, 4710-057 Braga, Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, University of Minho, 4805-017 Barco, Guimarães, Portugal
| | - Maurice N. Collins
- Stokes Laboratories, Bernal Institute, School of Engineering, University of Limerick, Limerick V94 PC82, Ireland
- Health Research Institute, University of Limerick, Limerick V94 T9PX, Ireland
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Pereira H, Fatih Cengiz I, Gomes S, Espregueira-Mendes J, Ripoll PL, Monllau JC, Reis RL, Oliveira JM. Meniscal allograft transplants and new scaffolding techniques. EFORT Open Rev 2019; 4:279-295. [PMID: 31210969 PMCID: PMC6549113 DOI: 10.1302/2058-5241.4.180103] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Clinical management of meniscal injuries has changed radically in recent years. We have moved from the model of systematic tissue removal (meniscectomy) to understanding the need to preserve the tissue.Based on the increased knowledge of the basic science of meniscal functions and their role in joint homeostasis, meniscus preservation and/or repair, whenever indicated and possible, are currently the guidelines for management.However, when repair is no longer possible or when facing the fact of the previous partial, subtotal or total loss of the meniscus, meniscus replacement has proved its clinical value. Nevertheless, meniscectomy remains amongst the most frequent orthopaedic procedures.Meniscus replacement is currently possible by means of meniscal allograft transplantation (MAT) which provides replacement of the whole meniscus with or without bone plugs/slots. Partial replacement has been achieved by means of meniscal scaffolds (mainly collagen or polyurethane-based). Despite the favourable clinical outcomes, it is still debatable whether MAT is capable of preventing progression to osteoarthritis. Moreover, current scaffolds have shown some fundamental limitations, such as the fact that the newly formed tissue may be different from the native fibrocartilage of the meniscus.Regenerative tissue engineering strategies have been used in an attempt to provide a new generation of meniscal implants, either for partial or total replacement. The goal is to provide biomaterials (acellular or cell-seeded constructs) which provide the biomechanical properties but also the biological features to replace the loss of native tissue. Moreover, these approaches include possibilities for patient-specific implants of correct size and shape, as well as advanced strategies combining cells, bioactive agents, hydrogels or gene therapy.Herein, the clinical evidence and tips concerning MAT, currently available meniscus scaffolds and future perspectives are discussed. Cite this article: EFORT Open Rev 2019;4 DOI: 10.1302/2058-5241.4.180103.
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Affiliation(s)
- Hélder Pereira
- Orthopedic Department of Póvoa de Varzim - Vila do Conde Hospital Centre, Vila do Conde, Portugal
- Ripoll y De Prado Sports Clinic, Murcia-Madrid, FIFA Medical Centre of Excellence, Madrid, Spain
- International Centre of Sports Traumatology of the Ave, Vila do Conde, Portugal
- 3Bs Research Group, I3Bs, Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Barco, Guimarães, Portugal
- ICVS/3Bs, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ibrahim Fatih Cengiz
- 3Bs Research Group, I3Bs, Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Barco, Guimarães, Portugal
- ICVS/3Bs, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Sérgio Gomes
- International Centre of Sports Traumatology of the Ave, Vila do Conde, Portugal
| | - João Espregueira-Mendes
- 3Bs Research Group, I3Bs, Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Barco, Guimarães, Portugal
- ICVS/3Bs, PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Clínica do Dragão, Espregueira-Mendes Sports Centre, FIFA Medical Centre of Excellence, Porto, Portugal
- Orthopedic Department, University of Minho, Braga, Portugal
| | - Pedro L. Ripoll
- Ripoll y De Prado Sports Clinic, Murcia-Madrid, FIFA Medical Centre of Excellence, Madrid, Spain
| | - Joan C. Monllau
- Orthopaedic Department, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Rui L. Reis
- 3Bs Research Group, I3Bs, Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Barco, Guimarães, Portugal
- ICVS/3Bs, PT Government Associate Laboratory, Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, Barco, Guimarães, Portugal
| | - J. Miguel Oliveira
- 3Bs Research Group, I3Bs, Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Barco, Guimarães, Portugal
- ICVS/3Bs, PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Orthopaedic Department, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, Barco, Guimarães, Portugal
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Regional dependency of bovine meniscus biomechanics on the internal structure and glycosaminoglycan content. J Mech Behav Biomed Mater 2019; 94:186-192. [DOI: 10.1016/j.jmbbm.2019.02.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 02/14/2019] [Accepted: 02/19/2019] [Indexed: 12/22/2022]
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Shen S, Chen M, Guo W, Li H, Li X, Huang S, Luo X, Wang Z, Wen Y, Yuan Z, Zhang B, Peng L, Gao C, Guo Q, Liu S, Zhuo N. Three Dimensional Printing-Based Strategies for Functional Cartilage Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2019; 25:187-201. [PMID: 30608012 DOI: 10.1089/ten.teb.2018.0248] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shi Shen
- Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Mingxue Chen
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Weimin Guo
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Haojiang Li
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Xu Li
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Suqiong Huang
- Department of Liver and Gallbladder Disease, The Affiliated Chinese Traditional Medicine Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Xujiang Luo
- Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Zhenyong Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
- First Department of Orthopedics, First Affiliated Hospital of Jiamusi University, Jiamusi, People's Republic of China
| | - Yang Wen
- Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Zhiguo Yuan
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Bin Zhang
- Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Liqing Peng
- Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Chao Gao
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Quanyi Guo
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Shuyun Liu
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, People's Republic of China
| | - Naiqiang Zhuo
- Department of Bone and Joint Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
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Murakami T, Otsuki S, Okamoto Y, Nakagawa K, Wakama H, Okuno N, Neo M. Hyaluronic acid promotes proliferation and migration of human meniscus cells via a CD44-dependent mechanism. Connect Tissue Res 2019; 60:117-127. [PMID: 29658360 DOI: 10.1080/03008207.2018.1465053] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE Treatment of meniscal injury is important for osteoarthritis (OA) prevention. Meniscus cells are divided between inner and outer cells, which have different characteristics and vascularity. We evaluated the effects of hyaluronic acid (HA) on the proliferation and migration of human inner and outer meniscus cells, and investigated the underlying healing mechanisms. MATERIALS AND METHODS Lateral menisci from 18 patients who underwent total knee arthroplasty were used. Meniscus cells were harvested from the outer and inner menisci and evaluated using migration and proliferation assays after treatment with HA or chondroitin sulfate (CS). The effects of HA on prostaglandin E2 (PGE2)-induced apoptosis and gene expression were evaluated. RESULTS Cell migration and proliferation were increased by HA in a concentration-dependent manner, in both inner and outer meniscus cells. PGE2-induced apoptosis and caspase-3/7 activity were suppressed by HA in both inner and outer meniscus cells, and these effects were blocked by an anti-CD44 antibody. COL2A1 and ACAN mRNA levels were upregulated following HA treatment of inner meniscus cells. MMP13 mRNA was downregulated following CS stimulation of both inner and outer meniscus cells. These results suggest that CS treatment suppresses the inflammatory reaction rather than providing meniscal restoration. The phosphatidylinositol 3-kinase (PI3K) and mitogen-activated protein kinase (MAPK) pathways were activated by HA in both types of meniscus cells; these effects were blocked by treatment with an anti-CD44 antibody. CONCLUSIONS HA promoted human meniscus regeneration by inhibiting apoptosis, promoting cell migration, and accelerating cell proliferation, potentially through the PI3K/MAPK pathway via the CD44 receptor.
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Affiliation(s)
| | - Shuhei Otsuki
- a Orthopedic Surgery , Osaka Medical College , Osaka , Japan
| | | | - Kosuke Nakagawa
- a Orthopedic Surgery , Osaka Medical College , Osaka , Japan
| | - Hitoshi Wakama
- a Orthopedic Surgery , Osaka Medical College , Osaka , Japan
| | - Nobuhiro Okuno
- a Orthopedic Surgery , Osaka Medical College , Osaka , Japan
| | - Masashi Neo
- a Orthopedic Surgery , Osaka Medical College , Osaka , Japan
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Treatment of Knee Meniscus Pathology: Rehabilitation, Surgery, and Orthobiologics. PM R 2019; 11:292-308. [DOI: 10.1016/j.pmrj.2018.08.384] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 08/11/2018] [Indexed: 01/13/2023]
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46
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Matar HE, Duckett SP, Raut V. Degenerative meniscal tears of the knee: evaluation and management. Br J Hosp Med (Lond) 2019; 80:46-50. [PMID: 30592671 DOI: 10.12968/hmed.2019.80.1.46] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Meniscal injuries are among the most common orthopaedic injuries seen in knee clinics. Meniscal tears can occur as a result of acute injuries or chronic degeneration. However, the exact incidence of meniscal tears is difficult to ascertain because of the high number of asymptomatic tears and the high rate of degenerative tears in patients with advanced degenerative joint disease. The management of patients with knee pain is non-operative both for degenerative meniscal tears and degenerative joint disease in its initial stages. Magnetic resonance imaging has little added value in the management of middle-aged and elderly patients with degenerative disease. Failure to respond to non-operative measures warrants orthopaedic assessment with radiographic studies and counselling on managing degenerative joint disease both non-operatively and operatively. This article focuses on assessment and management of degenerative meniscal tears.
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Affiliation(s)
- Hosam E Matar
- Specialty Registrar in Trauma and Orthopaedics, Department of Orthopaedic Surgery, Wrightington Hospital, Wigan WN6 9EP
| | - Stephen P Duckett
- Consultant Trauma and Orthopaedic Surgeon, Department of Orthopaedic Surgery, Leighton Hospital, Crewe
| | - Videshnandan Raut
- Honorary Professor Edge Hill University, and Consultant Hip and Knee Orthopaedic Surgeon, Department of Orthopaedic Surgery, Wrightington and Lancashire Teaching Hospitals, Wigan
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47
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Differential protein expression in human knee articular cartilage and medial meniscus using two different proteomic methods: a pilot analysis. BMC Musculoskelet Disord 2018; 19:416. [PMID: 30497455 PMCID: PMC6267052 DOI: 10.1186/s12891-018-2346-6] [Citation(s) in RCA: 16] [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] [Received: 06/05/2018] [Accepted: 11/16/2018] [Indexed: 01/26/2023] Open
Abstract
Background Proteomics is an emerging field in the study of joint disease. Our two aims with this pilot analysis were to compare healthy human knee articular cartilage with meniscus, two tissues both known to become affected in the osteoarthritic disease process, and to compare two mass spectrometry (MS)-based methods: data-dependent acquisition (DDA) and data-independent acquisition (DIA). Methods Healthy knee articular cartilage taken from the medial tibial condyle and medial meniscus samples taken from the body region were obtained from three adult forensic medicine cases. Proteins were extracted from tissue pieces and prepared for MS analysis. Each sample was subjected to liquid chromatography (LC)-MS/MS analysis using an Orbitrap mass spectrometer, and run in both DDA and DIA mode. Linear mixed effects models were used for statistical analysis. Results A total of 653 proteins were identified in the DDA analysis, of which the majority was present in both tissue types. Only proteins with quantitation information in both tissues (n = 90) were selected for more detailed analysis, of which the majority did not statistically significantly differ in abundance between the two tissue types, in either of the MS analyses. However, 21 proteins were statistically significantly different (p < 0.05) between meniscus and cartilage in the DIA analysis. Out of these, 11 proteins were also significantly different in the DDA analysis. Aggrecan core protein was the most abundant protein in articular cartilage and significantly differed between the two tissues in both methods. The corresponding protein in meniscus was serum albumin. Dermatopontin exhibited the highest meniscus vs articular cartilage ratio among the statistically significant proteins. The DIA method led to narrower confidence intervals for the abundance differences between the two tissue types than DDA. Conclusions Although articular cartilage and meniscus had similar proteomic composition, we detected several differences by MS. Between the two analyses, DIA yielded more precise estimates and more statistically significant different proteins than DDA, and had no missing values, which makes it preferable for future LC-MS/MS analyses. Electronic supplementary material The online version of this article (10.1186/s12891-018-2346-6) contains supplementary material, which is available to authorized users.
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Grogan SP, Duffy SF, Pauli C, Lotz MK, D’Lima DD. Gene expression profiles of the meniscus avascular phenotype: A guide for meniscus tissue engineering. J Orthop Res 2018; 36:1947-1958. [PMID: 29411909 PMCID: PMC6326361 DOI: 10.1002/jor.23864] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 02/05/2018] [Indexed: 02/04/2023]
Abstract
Avascular (Avas) meniscus regeneration remains a challenge, which is partly a consequence of our limited knowledge of the cells that maintain this tissue region. In this study, we utilized microarrays to characterize gene expression profiles of intact human Avas meniscus tissue and of cells following culture expansion. Using these data, we examined various 3D culture conditions to redifferentiate Avas cells toward the tissue phenotype. RNA was isolated from either the tissue directly or following cell isolation and 2 weeks in monolayer culture. RNA was hybridized on human genome arrays. Differentially expressed (DE) genes were identified by ranking analysis. DAVID pathway analysis was performed and visualized using STRING analysis. Quantitative PCR (qPCR) on additional donor menisci (tissues and cells) were used to validate array data. Avas cells cultured in 3D were subjected to qPCR to compare with the array-generated data. A total of 387 genes were DE based on differentiation state (>3-fold change; p < 0.01). In Avas-cultured cells, the upregulated pathways included focal adhesion, ECM-receptor interaction, regulation of actin cytoskeleton, and PDGF Signaling. In 3D-cultured Avas cells, TGFβ1 or combinations of TGFβ1 and BMP6 were most effective to promote an Avas tissue phenotype. THBS2 and THBS4 expression levels were identified as a means to denote meniscus cell phenotype status. We identified the key gene expression profiles, new markers and pathways involved in characterizing the Avas meniscus phenotype in the native state and during in vitro dedifferentiation and redifferentiation. These data served to screen 3D conditions to generate meniscus-like neotissues. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1947-1958, 2018.
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Affiliation(s)
- Shawn P Grogan
- Shiley Center for Orthopaedic Research and Education at Scripps Clinic, La Jolla, CA
| | - Stuart F. Duffy
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA
| | - Chantal Pauli
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA
| | - Martin K Lotz
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA
| | - Darryl D D’Lima
- Shiley Center for Orthopaedic Research and Education at Scripps Clinic, La Jolla, CA,Corresponding author: Darryl D D’Lima, MD, PhD, Shiley Center for Orthopaedic Research and Education at Scripps Clinic, 11025 North Torrey Pines Road, Suite 200, La Jolla, CA 92037, Tel 858 332 0166 Fax 858 332 0669,
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Costa JB, Silva-Correia J, Reis RL, Oliveira JM. Recent advances on 3D printing of patient-specific implants for fibrocartilage tissue regeneration. ACTA ACUST UNITED AC 2018. [DOI: 10.2217/3dp-2018-0006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Fibrocartilage is a very peculiar type of tissue found in intervertebral disc and meniscus. It is characterized by its avascular nature and for the shear and compressive forces that it can be subjected to. The number of individuals affected by the degeneration of fibrocartilaginous tissues has been growing and the poor outcomes of current treatments have led to an increased interest in new alternative approaches. Therefore, the combination of reverse engineering with 3D printing has been extensively explored in order to produce patient-specific implants capable of improving the current clinical outcomes. This review outlines the recent advances achieved in the tissue engineering field, especially focusing on fibrocartilaginous tissue.
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Affiliation(s)
- João B Costa
- 3B’s Research Group – Biomaterials, Biodegradables & Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering & Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative & Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Joana Silva-Correia
- 3B’s Research Group – Biomaterials, Biodegradables & Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering & Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui L Reis
- 3B’s Research Group – Biomaterials, Biodegradables & Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering & Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative & Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
| | - Joaquim M Oliveira
- 3B’s Research Group – Biomaterials, Biodegradables & Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering & Regenerative Medicine, AvePark, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative & Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
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Coluccino L, Gottardi R, Ayadi F, Athanassiou A, Tuan RS, Ceseracciu L. Porous Poly(vinyl alcohol)-Based Hydrogel for Knee Meniscus Functional Repair. ACS Biomater Sci Eng 2018; 4:1518-1527. [PMID: 33445309 DOI: 10.1021/acsbiomaterials.7b00879] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The meniscus has a key role within the knee joint, conferring stability, absorbing and redistributing loads, and influencing the overall movement proprioception. Recent developments in the treatment of meniscal injury have progressively shifted the focus from general resection to functional repair, with the recognition that restoring the biomechanical meniscal function helps to prevent degenerative changes in the knee joint and the insurgence of osteoarthritis. To address this clinical need, we have developed a biomimetic implant based on a porous poly(vinyl alcohol) (PVA) hydrogel. Such hydrogels are stable, biocompatible, and suitable to surgical translation, and their mechanical properties can be tuned to reduce the mismatch in the case of partial meniscectomy. The PVA implant structure is porous and permeable, allowing fluid flows and facilitating anatomical integration in situ. Here, we present a chemo-physical characterization of PVA porous hydrogels, focusing on their tunable morphology and associated viscoelastic properties. Biocompatibility was evaluated using primary bovine meniscal fibrochondrocytes, and integration with native tissues was assessed in an ex vivo model. Overall, our results suggest that a synthetic meniscal implant based on a porous PVA hydrogel could restore the physiological function of the meniscus and represent a promising clinical alternative to current resection treatments.
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Affiliation(s)
- Luca Coluccino
- Department of Orthopaedic Surgery, Department of Chemical Engineering, and the McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Riccardo Gottardi
- Department of Orthopaedic Surgery, Department of Chemical Engineering, and the McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States.,Ri.MED Foundation, Palermo 90133, Italy
| | - Farouk Ayadi
- UNIROUEN, INSA Rouen, CNRS, PBS, Normandie Universite, 76000 Rouen, France
| | | | - Rocky S Tuan
- Department of Orthopaedic Surgery, Department of Chemical Engineering, and the McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
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