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Chen X, Zhang R, Zhang Q, Xu Z, Xu F, Li D, Li Y. Magnetically Controlled 3D Cartilage Regeneration. Cartilage 2024; 15:293-302. [PMID: 37401776 DOI: 10.1177/19476035231183254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/05/2023] Open
Abstract
OBJECTIVE The cartilage regeneration field has not yet overcome the issue of effective "shaping": growing regenerated cartilage in the desired shape, and maintaining that shape, is problematic. This study reports on a new method of cartilage regeneration in which the cartilage is shaped in three dimensions. Since cartilage is composed only of cartilage cells and an abundant extracellular matrix with no blood circulation, once it is damaged, the lack of nutrient supply means that it is difficult to repair. Scaffold-free cell sheet technology plays an important role in cartilage regeneration, avoiding inflammation and immune response caused by scaffold materials. However, cartilage regenerated from the cell sheet needs to be sculpted and shaped before it can be used for cartilage defect transplantation. DESIGN In this study, we used a new ultra-strong magnetic-responsive Fe3O4 nanoparticle (MNP) to shape the cartilage in vitro. Super-magnetic Fe3O4 microspheres are manufactured by co-assembling negatively charged Cetyltrimethylammonium bromide (CTAB) and positively charged Fe3+ under solvothermal conditions. RESULTS The Fe3O4 MNPs are swallowed by chondrocytes, and the MNP-labeled chondrocytes are acted upon by the magnetic field. The predetermined magnetic force makes the tissues coalesce to form a multilayer cell sheet with a predetermined shape. The shaped cartilage tissue is regenerated in the transplanted body, and the nano magnetic control particles do not affect cell viability. The nanoparticles in this study improve the efficiency of cell interaction through super-magnetic modification, and to a certain extent change the way the cells absorb magnetic iron nanoparticles. This phenomenon allows a more orderly and compact alignment of the cartilage cell extracellular matrix, promotes ECM precipitation and cartilage tissue maturation, and improves the efficiency of cartilage regeneration. CONCLUSION The magnetic bionic structure, which contains specific magnetic particle-labeled cells, is deposited layer by layer to generate a three-dimensional structure with repair function, and further induce the production of cartilage. This study describes a new method for the regeneration of tissue engineered cartilage which has broad application prospects in regenerative medicine.
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Affiliation(s)
- Xia Chen
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruhong Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qun Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhicheng Xu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Xu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Datao Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiyuan Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Notoh H, Yamasaki S, Suzuki N, Suzuki A, Okamoto S, Kanematsu T, Suzuki N, Katsumi A, Kojima T, Matsushita T, Tamura S. Basement membrane extract potentiates the endochondral ossification phenotype of bone marrow-derived mesenchymal stem cell-based cartilage organoids. Biochem Biophys Res Commun 2024; 701:149583. [PMID: 38330731 DOI: 10.1016/j.bbrc.2024.149583] [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: 01/12/2024] [Accepted: 01/24/2024] [Indexed: 02/10/2024]
Abstract
Endochondral ossification is a developmental process in the skeletal system and bone marrow of vertebrates. During endochondral ossification, primitive cartilaginous anlages derived from mesenchymal stem cells (MSCs) undergo vascular invasion and ossification. In vitro regeneration of endochondral ossification is beneficial for research on the skeletal system and bone marrow development as well as their clinical aspects. However, to achieve the regeneration of endochondral ossification, a stem cell-based artificial cartilage (cartilage organoid, Cart-Org) that possesses an endochondral ossification phenotype is required. Here, we modified a conventional 3D culture method to create stem cell-based Cart-Org by mixing it with a basement membrane extract (BME) and further characterized its chondrogenic and ossification properties. BME enlarged and matured the bone marrow MSC-based Cart-Orgs without any shape abnormalities. Histological analysis using Alcian blue staining showed that the production of cartilaginous extracellular matrices was enhanced in Cart-Org treated with BME. Transcriptome analysis using RNA sequencing revealed that BME altered the gene expression pattern of Cart-Org to a dominant chondrogenic state. BME triggered the activation of the SMAD pathway and inhibition of the NK-κB pathway, which resulted in the upregulation of SOX9, COL2A1, and ACAN in Cart-Org. BME also facilitated the upregulation of genes associated with hypertrophic chondrocytes (IHH, PTH1R, and COL10A1) and ossification (SP7, ALPL, and MMP13). Our findings indicate that BME promotes cartilaginous maturation and further ossification of bone marrow MSC-based Cart-Org, suggesting that Cart-Org treated with BME possesses the phenotype of endochondral ossification.
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Affiliation(s)
- Hinako Notoh
- Graduate School of Health Sciences, Hokkaido University, Japan
| | | | - Nobuaki Suzuki
- Department of Transfusion Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Atsuo Suzuki
- Department of Medical Technique, Nagoya University Hospital, Japan
| | - Shuichi Okamoto
- Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takeshi Kanematsu
- Department of Clinical Laboratory, Nagoya University Hospital, Nagoya, Japan
| | - Naruko Suzuki
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akira Katsumi
- Department of Hematology, National Center for Geriatrics and Gerontology, Obu City, Japan
| | - Tetsuhito Kojima
- Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan; Aichi Health Promotion Foundation, Nagoya, Japan
| | - Tadashi Matsushita
- Department of Transfusion Medicine, Nagoya University Hospital, Nagoya, Japan; Department of Clinical Laboratory, Nagoya University Hospital, Nagoya, Japan
| | - Shogo Tamura
- Department of Transfusion Medicine, Nagoya University Hospital, Nagoya, Japan; Department of Clinical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan.
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Toropitsyn E, Pravda M, Rebenda D, Ščigalková I, Vrbka M, Velebný V. A composite device for viscosupplementation treatment resistant to degradation by reactive oxygen species and hyaluronidase. J Biomed Mater Res B Appl Biomater 2022; 110:2595-2611. [PMID: 35727166 DOI: 10.1002/jbm.b.35114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 05/02/2022] [Accepted: 06/08/2022] [Indexed: 12/15/2022]
Abstract
Osteoarthritis (OA) is one of the most common musculoskeletal disorders in the world. OA is often associated with the loss of viscoelastic and tribological properties of synovial fluid (SF) due to degradation of hyaluronic acid (HA) by reactive oxygen species (ROS) and hyaluronidases. Viscosupplementation is one of the ways how to effectively restore SF functions. However, current viscosupplementation products provide only temporal therapeutic effect because of short biological half-life. In this article we describe a novel device for viscosupplementation (NV) based on the cross-linked tyramine derivative of HA, chondroitin sulfate (CS), and high molecular weight HA by online determination of viscoelastic properties loss during degradation by ROS and hyaluronidase. Rheological and tribological properties of developed viscosupplement were compared with HA solutions with different molecular weights in the range 500-2000 kDa, which are currently commonly used as medical devices for viscosupplementation treatment. Moreover, based on clinical practice and scientific literature all samples were also diluted by model OA SF in the ratio 1:1 (vol/vol) to better predict final properties after injection to the joint. The observed results confirmed that NV exhibits appropriate rheological properties (viscosity, elastic, and viscous moduli) comparable with healthy SF and maintain them during degradation for a significantly longer time than HA solutions with molecular weight in the range 500-2000 kDa and cross-linked material without CS.
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Affiliation(s)
- Evgeniy Toropitsyn
- Contipro a.s., Dolní Dobrouč, Czech Republic.,Biocev, First Faculty of Medicine Charles University, Vestec, Czech Republic
| | | | - David Rebenda
- Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic
| | | | - Martin Vrbka
- Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic
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Puertas-Bartolomé M, Włodarczyk-Biegun MK, Del Campo A, Vázquez-Lasa B, San Román J. Development of bioactive catechol functionalized nanoparticles applicable for 3D bioprinting. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 131:112515. [PMID: 34857294 DOI: 10.1016/j.msec.2021.112515] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/19/2021] [Accepted: 10/22/2021] [Indexed: 12/11/2022]
Abstract
Efficient wound treatments to target specific events in the healing process of chronic wounds constitute a significant aim in regenerative medicine. In this sense, nanomedicine can offer new opportunities to improve the effectiveness of existing wound therapies. The aim of this study was to develop catechol bearing polymeric nanoparticles (NPs) and to evaluate their potential in the field of wound healing. Thus, NPs wound healing promoting activities, potential for drug encapsulation and controlled release, and further incorporation in a hydrogel bioink formulation to fabricate cell-laden 3D scaffolds are studied. NPs with 2 and 29 M % catechol contents (named NP2 and NP29) were obtained by nanoprecipitation and presented hydrodynamic diameters of 100 and 75 nm respectively. These nanocarriers encapsulated the hydrophobic compound coumarin-6 with 70% encapsulation efficiency values. In cell culture studies, the NPs had a protective effect in RAW 264.7 macrophages against oxidative stress damage induced by radical oxygen species (ROS). They also presented a regulatory effect on the inflammatory response of stimulated macrophages and promoted upregulation of the vascular endothelial growth factor (VEGF) in fibroblasts and endothelial cells. In particular, NP29 were used in a hydrogel bioink formulation using carboxymethyl chitosan and hyaluronic acid as polymeric matrices. Using a reactive mixing bioprinting approach, NP-loaded hydrogel scaffolds with good structural integrity, shape fidelity and homogeneous NPs dispersion, were obtained. The in vitro catechol NPs release profile of the printed scaffolds revealed a sustained delivery. The bioprinted scaffolds supported viability and proliferation of encapsulated L929 fibroblasts over 14 days. We envision that the catechol functionalized NPs and resulting bioactive bioink presented in this work offer promising advantages for wound healing applications, as they: 1) support controlled release of bioactive catechol NPs to the wound site; 2) can incorporate additional therapeutic functions by co-encapsulating drugs; 3) can be printed into 3D scaffolds with tailored geometries based on patient requirements.
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Affiliation(s)
- María Puertas-Bartolomé
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; CIBER's Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain; INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
| | | | - Aránzazu Del Campo
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany; Chemistry Department, Saarland University, 66123 Saarbrücken, Germany
| | - Blanca Vázquez-Lasa
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; CIBER's Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain.
| | - Julio San Román
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; CIBER's Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Health Institute Carlos III, Monforte de Lemos 3-5, 28029 Madrid, Spain
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5
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Elsadek BEM, Abdelghany AA, Abd El-Aziz MA, Madkor HR, Abd Elrady Ahmed A, Abd-Elghaffar SK, Elsadek AAM. Validation of the Diagnostic and Prognostic Values of ADAMTS5 and FSTL1 in Osteoarthritis Rat Model. Cartilage 2021; 13:1263S-1273S. [PMID: 31177809 PMCID: PMC8804805 DOI: 10.1177/1947603519852405] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE Osteoarthritis (OA) is a global public health problem and a leading cause of morbidity and disability. Due to lack of sensitive and specific tools for early OA diagnosis and predicting prognosis, the availability of new reliable and sensitive biomarkers is a widely appreciated need to identify patients at risk for incident disease or disease progression. Accordingly, our study was conducted to validate the usefulness of disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS5) and follistatin-like protein 1 (FSTL1) to achieve this goal. DESIGN Fifty-four male Wistar rats were randomized into 3 groups; 24 rats were subjected to medial meniscal tear (MMT) surgery on the right knee joint (OA group), 24 rats were subjected to sham surgery (sham group), and 6 healthy rats (negative control group). Six animals from each group were sacrificed every 2 weeks. At each time point, the right knee joint of each animal was visualized radiologically, a blood sample was collected, and cartilage tissues were isolated for histopathological and western blot analysis. RESULTS We found that the expression levels of ADAMTS5 and FSTL1 significantly increased with OA progression, especially at weeks 4, 6, and 8 after surgery. Notably, the serum levels of ADAMTS5 and FSTL1 showed significant positive correlations with each other and with the studied inflammatory markers. CONCLUSIONS Our findings suggest that ADAMTS5 and FSTL1 can serve as important and informative serological markers of disease activity in OA. However, further research is needed to validate their use for improving the diagnosis and prognosis of OA in humans.
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Affiliation(s)
- Bakheet E M Elsadek
- Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Ahmed A Abdelghany
- Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Mohamed A Abd El-Aziz
- Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Hafez R Madkor
- Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Ahmed Abd Elrady Ahmed
- Department of Radiology, Faculty of Medicine, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Sary Kh Abd-Elghaffar
- Department of Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Amer Alkot Mostafa Elsadek
- Department of Orthopaedic and Trauma Surgery, Faculty of Medicine, Al-Azhar University, Assiut Branch, Assiut, Egypt
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6
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Miyaji N, Nishida K, Tanaka T, Araki D, Kanzaki N, Hoshino Y, Kuroda R, Matsushita T. Inhibition of Knee Osteoarthritis Progression in Mice by Administering SRT2014, an Activator of Silent Information Regulator 2 Ortholog 1. Cartilage 2021; 13:1356S-1366S. [PMID: 31989845 PMCID: PMC8804762 DOI: 10.1177/1947603519900795] [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] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Previous findings suggest that silent information regulator 2 ortholog 1 (SIRT1) plays essential roles in chondrocytes and prevents osteoarthritis (OA) development. The purpose of this study was to investigate the effects of intraperitoneal (i.p.) and intra-articular (i.a.) administration of the SIRT1 activator SRT2104, which has been approved for use in humans. DESIGN OA was induced by destabilizing the medial meniscus in the knee joint of 12-week-old CL57BL/6J mice. The mice were divided into 3 groups, that is, the control group, SRT2104 i.p.-injection group, and SRT2104 i.a.-injection group. Tissues were harvested at 4, 8, 12, and 16 weeks postsurgery. OA progression was evaluated using the Osteoarthritis Research Society International (OARSI) score. The production of OA-related proteins in cartilage and synovium was examined by immunohistochemistry. RESULTS OARSI scores in the control group were significantly higher at 8 and 12 weeks compared with other 2 groups. Immunohistochemical analysis showed that Sirt1 and type-2 collagen significantly increased, whereas MMP-13, ADAMTS-5, IL-1β, IL-6, cleaved caspase 3, PARP p85, acetylated NF-κB p65, and iNOS decreased significantly in cartilage tissues from the i.p. and i.a, SRT2104 groups. In the synovium, more iNOS-positive M1-like macrophages were observed in the control group than in the i.p. and i.a, SRT2104 groups, whereas more CD206-positive M2-like macrophages were detected in the i.p. and i.a. SRT2104 groups. CONCLUSIONS Both i.p. and i.a. SRT2104 injection reduced OA progression in the mouse OA model, suggesting that SRT2104 can serve as a new treatment for OA.
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Affiliation(s)
- Nobuaki Miyaji
- Department of Orthopedic Surgery,
Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Kyohei Nishida
- Department of Orthopedic Surgery,
Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Toshikazu Tanaka
- Department of Orthopedic Surgery,
Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Daisuke Araki
- Department of Orthopedic Surgery,
Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Noriyuki Kanzaki
- Department of Orthopedic Surgery,
Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Yuichi Hoshino
- Department of Orthopedic Surgery,
Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopedic Surgery,
Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Takehiko Matsushita
- Department of Orthopedic Surgery,
Graduate School of Medicine, Kobe University, Kobe, Japan,Takehiko Matsushita, Department of
Orthopaedic Surgery, Graduate School of Medicine, Kobe University, 7-5-1
Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
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7
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Thomson A, Hilkens CMU. Synovial Macrophages in Osteoarthritis: The Key to Understanding Pathogenesis? Front Immunol 2021; 12:678757. [PMID: 34211470 PMCID: PMC8239355 DOI: 10.3389/fimmu.2021.678757] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 04/30/2021] [Indexed: 11/13/2022] Open
Abstract
Effective treatment of osteoarthritis (OA) remains a huge clinical challenge despite major research efforts. Different tissues and cell-types within the joint contribute to disease pathogenesis, and there is great heterogeneity between patients in terms of clinical features, genetic characteristics and responses to treatment. Inflammation and the most abundant immune cell type within the joint, macrophages, have now been recognised as possible players in disease development and progression. Here we discuss recent findings on the involvement of synovial inflammation and particularly the role of synovial macrophages in OA pathogenesis. Understanding macrophage involvement may hold the key for improved OA treatments.
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Affiliation(s)
| | - Catharien M. U. Hilkens
- Immunotherapy Research Group, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, United Kingdom
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8
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Laghezza A, Piemontese L, Brunetti L, Caradonna A, Agamennone M, Loiodice F, Tortorella P. (2-Aminobenzothiazole)-Methyl-1,1-Bisphosphonic Acids: Targeting Matrix Metalloproteinase 13 Inhibition to the Bone. Pharmaceuticals (Basel) 2021; 14:ph14020085. [PMID: 33498946 PMCID: PMC7912614 DOI: 10.3390/ph14020085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/13/2021] [Accepted: 01/20/2021] [Indexed: 12/23/2022] Open
Abstract
Matrix Metalloproteinases (MMPs) are a family of secreted and membrane-bound enzymes, of which 24 isoforms are known in humans. These enzymes degrade the proteins of the extracellular matrix and play a role of utmost importance in the physiological remodeling of all tissues. However, certain MMPs, such as MMP-2, -9, and -13, can be overexpressed in pathological states, including cancer and metastasis. Consequently, the development of MMP inhibitors (MMPIs) has been explored for a long time as a strategy to prevent and hinder metastatic growth, but the important side effects linked to promiscuous inhibition of MMPs prevented the clinical use of MMPIs. Therefore, several strategies were proposed to improve the therapeutic profile of this pharmaceutical class, including improved selectivity toward specific MMP isoforms and targeting of specific organs and tissues. Combining both approaches, we conducted the synthesis and preliminary biological evaluation of a series of (2-aminobenzothiazole)-methyl-1,1-bisphosphonic acids active as selective inhibitors of MMP-13 via in vitro and in silico studies, which could prove useful for the treatment of bone metastases thanks to the bone-targeting capabilities granted by the bisphosphonic acid group.
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Affiliation(s)
- Antonio Laghezza
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (A.L.); (L.P.); (L.B.); (A.C.)
| | - Luca Piemontese
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (A.L.); (L.P.); (L.B.); (A.C.)
| | - Leonardo Brunetti
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (A.L.); (L.P.); (L.B.); (A.C.)
| | - Alessia Caradonna
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (A.L.); (L.P.); (L.B.); (A.C.)
| | - Mariangela Agamennone
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, Via Dei Vestini, 31, 66100 Chieti, Italy;
| | - Fulvio Loiodice
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (A.L.); (L.P.); (L.B.); (A.C.)
- Correspondence: (F.L.); (P.T.)
| | - Paolo Tortorella
- Department of Pharmacy and Pharmaceutical Sciences, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy; (A.L.); (L.P.); (L.B.); (A.C.)
- Correspondence: (F.L.); (P.T.)
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Edwards J, Marusyk A, Basanta D. Selection-driven tumor evolution with public goods leads to patterns of clonal expansion consistent with neutral growth. iScience 2021; 24:101901. [PMID: 33364589 PMCID: PMC7753957 DOI: 10.1016/j.isci.2020.101901] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 10/07/2020] [Accepted: 12/01/2020] [Indexed: 12/18/2022] Open
Abstract
Cancers are the result of eco-evolutionary processes fueled by heritable phenotypic diversification and driven by environmentally dependent selection. Space represents a key growth-limiting ecological resource, the ability to explore this resource is likely under strong selection. Using agent-based modeling, we explored the interplay between phenotypic strategies centered on gaining access to new space through cell-extrinsic degradation of extracellular matrix barriers and the exploitation of this resource through maximizing cell proliferation. While cell proliferation is a cell-intrinsic property, newly accessed space represents a public good, which can benefit both producers and non-producers. We found that this interplay results in ecological succession, enabling emergence of large, heterogeneous, and highly proliferative populations. Even though in our simulations both remodeling and proliferation strategies were under strong positive selection, their interplay led to sub-clonal architecture that could be interpreted as evidence for neutral evolution, warranting cautious interpretation of inferences from sequencing of cancer genomes.
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Affiliation(s)
- Jack Edwards
- Integrated Mathematical Oncology Department, H. Lee Moffitt Cancer Center & Research Institute, 12902 USF Magnolia Drive, Tampa, FL 33612, USA
| | - Andriy Marusyk
- Cancer Physiology Department, H. Lee Moffitt Cancer Center & Research Institute, 12902 Magnolia Drive, SRB 4 Rm 24000H, Tampa, Florida 33612, USA
| | - David Basanta
- Integrated Mathematical Oncology Department, H. Lee Moffitt Cancer Center & Research Institute, 12902 USF Magnolia Drive, Tampa, FL 33612, USA
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The Influence of New Silicate Cement Mineral Trioxide Aggregate (MTA Repair HP) on Metalloproteinase MMP-2 and MMP-9 Expression in Cultured THP-1 Macrophages. Int J Mol Sci 2020; 22:ijms22010295. [PMID: 33396675 PMCID: PMC7795909 DOI: 10.3390/ijms22010295] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 02/07/2023] Open
Abstract
The aim of the present study was to investigate the new silicate cement mineral trioxide aggregate (MTA Repair HP) with respect to its effect on the inflammation process involving the tooth and periodontal tissues. The composition of MTA Repair HP was supplemented with plasticizer agents which can have a negative effect on the modulation of tooth inflammation. The silicate-based material in question is widely used in regeneration of the pulp-dentin complex, treatment of perforations of various locations in the tooth, as well as in surgical treatment of the complications of periapical tissue. The improved bioceramic restorative cement can affect the expression of metalloproteinases MMP-2 and MMP-9 in monocytes/macrophages involved in modulation of inflammation and regenerative processes of the tooth and periodontal tissues. The novel aspect of the present study lies in the application of the model of THP-1 monocyte/macrophage and applying the biomaterial in direct contact with the cells. Hence, it provides a representation of clinical conditions with respect to regenerative pulp and periodontal treatment with the use of MTA Repair HP. A lack of macrophage activation (as measured with flow cytometry) was found. Moreover, the study identified a lack of expression stimulation of the studied metalloproteinases (with the use of Western blotting and fluorescent microscopy). Similarly, no increase in MMP-2 and MMP-9 concentration was found (measured by ELISA method) in vitro when incubated with MTA Repair HP. Based on the results it can be concluded that new MTA Repair HP does not increase the inflammatory response in monocytes/macrophages associated with the activity of the described enzymes. It can also be speculated that they do not affect the process of dentin regeneration in which MMP-2 and MMP-9 play significant roles.
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On collagen fiber morphoelasticity and homeostatic remodeling tone. J Mech Behav Biomed Mater 2020; 113:104154. [PMID: 33158790 DOI: 10.1016/j.jmbbm.2020.104154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 03/14/2020] [Accepted: 10/21/2020] [Indexed: 11/23/2022]
Abstract
A variety of biochemical and physical processes participate in the creation and maintenance of collagen in biological tissue. Under mechanical stimuli these collagen fibers undergo continuous processes of morphoelastic change. The model presented here is motivated by experimental reports of stretch-stabilization of the collagen fibers to enzymatic degradation. The fiber structure is modeled in terms of a fiber density evolution that is regulated by means of a fixed creation rate and a mechano-sensitive dissolution rate. The theory accounts for the possibly different natural configurations of the fiber unit constituents and the ground substance matrix. It also generalizes previous theoretical descriptions so as to account for finite survival times of the individual fiber units. Special consideration is given to steady state fiber-remodeling processes in which fiber creation and dissolution are in balance. Fiber assembly processes that involve prestretching the fiber constituents yield a homeostatic stress response with a characteristic fiber tone. Fiber density returns to homeostasis after mechanical disruption when sufficient time has passed.
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12
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Molecular Targets of Natural Products for Chondroprotection in Destructive Joint Diseases. Int J Mol Sci 2020; 21:ijms21144931. [PMID: 32668590 PMCID: PMC7404046 DOI: 10.3390/ijms21144931] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 12/16/2022] Open
Abstract
Osteoarthritis (OA) is the most common type of arthritis that occurs in an aged population. It affects any joints in the body and degenerates the articular cartilage and the subchondral bone. Despite the pathophysiology of OA being different, cartilage resorption is still a symbol of osteoarthritis. Matrix metalloproteinases (MMPs) are important proteolytic enzymes that degrade extra-cellular matrix proteins (ECM) in the body. MMPs contribute to the turnover of cartilage and its break down; their levels have increased in the joint tissues of OA patients. Application of chondroprotective drugs neutralize the activities of MMPs. Natural products derived from herbs and plants developed as traditional medicine have been paid attention to, due to their potential biological effects. The therapeutic value of natural products in OA has increased in reputation due to their clinical impact and insignificant side effects. Several MMPs inhibitor have been used as therapeutic drugs, for a long time. Recently, different types of compounds were reviewed for their biological activities. In this review, we summarize numerous natural products for the development of MMPs inhibitors in arthritic diseases and describe the major signaling targets that were involved for the treatments of these destructive joint diseases.
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13
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Dai J, Dong R, Han X, Li J, Gong X, Bai Y, Kang F, Liang M, Zeng F, Hou Z, Dong S. Osteoclast-derived exosomal let-7a-5p targets Smad2 to promote the hypertrophic differentiation of chondrocytes. Am J Physiol Cell Physiol 2020; 319:C21-C33. [PMID: 32374679 DOI: 10.1152/ajpcell.00039.2020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The invasion of osteoclasts into the cartilage via blood vessels advances the process of endochondral ossification, and dysregulation of dynamic intercellular interactions results in skeletal dysplasias. Although the regulation of osteoclasts by growth plate chondrocytes has been reported in detail, the effect of osteoclasts on chondrocytes remains to be determined. In this study, ATDC5 cells and bone marrow mesenchymal stem cells were differentiated into chondrocytes and treated with conditioned medium obtained from bone marrow macrophages differentiated to osteoclast precursors and osteoclasts. Exosomes were inhibited in conditioned medium or isolated directly from osteoclasts to further determine whether osteoclast-derived exosomes play an important role in chondrocyte hypertrophy. Additionally, exosomal miRNAs were detected, and let-7a-5p was selected as an miRNA with significantly increased expression in osteoclast-derived exosomes. Experiments were performed to verify the potential target Smad2 and investigate how let-7a-5p affected chondrocytes. The results suggest that both osteoclast precursors and osteoclasts promote chondrocyte hypertrophy and that the promotive effect of osteoclasts is more significant than that of osteoclast precursors. Osteoclast-derived exosomes promote the hypertrophic differentiation of chondrocytes. Moreover, osteoclast-derived exosomal let-7a-5p inhibits Smad2 to decrease the transforming growth factor-β-induced inhibition of chondrocyte hypertrophy. Our research reveals the role of osteoclasts in the regulation of chondrocytes and provides insights into the highly coordinated intercellular process of endochondral ossification.
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Affiliation(s)
- Jingjin Dai
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Rui Dong
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xinyun Han
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jianmei Li
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xiaoshan Gong
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yun Bai
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Fei Kang
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Mengmeng Liang
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Fanchun Zeng
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Zhiyong Hou
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Shiwu Dong
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University (Army Medical University), Chongqing, China
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Chaumel J, Schotte M, Bizzarro JJ, Zaslansky P, Fratzl P, Baum D, Dean MN. Co-aligned chondrocytes: Zonal morphological variation and structured arrangement of cell lacunae in tessellated cartilage. Bone 2020; 134:115264. [PMID: 32058019 DOI: 10.1016/j.bone.2020.115264] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 01/29/2020] [Accepted: 02/03/2020] [Indexed: 02/06/2023]
Abstract
In most vertebrates the embryonic cartilaginous skeleton is replaced by bone during development. During this process, cartilage cells (chondrocytes) mineralize the extracellular matrix and undergo apoptosis, giving way to bone cells (osteocytes). In contrast, sharks and rays (elasmobranchs) have cartilaginous skeletons throughout life, where only the surface mineralizes, forming a layer of tiles (tesserae). Elasmobranch chondrocytes, unlike those of other vertebrates, survive cartilage mineralization and are maintained alive in spaces (lacunae) within tesserae. However, the functions of the chondrocytes in the mineralized tissue remain unknown. Applying a custom analysis workflow to high-resolution synchrotron microCT scans of tesserae, we characterize the morphologies and arrangements of stingray chondrocyte lacunae, using lacunar morphology as a proxy for chondrocyte morphology. We show that the cell density is comparable in unmineralized and mineralized tissue and that cells maintain similar volume even when they have been incorporated into tesserae. Our findings support previous hypotheses that elasmobranch chondrocytes, unlike those of other taxa, do not proliferate, hypertrophy or undergo apoptosis during mineralization. Tessera lacunae show zonal variation in their shapes, being flatter further from and more spherical closer to the unmineralized cartilage matrix, and larger in the center of tesserae. The lacunae show pronounced organization into parallel layers and strong orientation toward neighboring tesserae. Tesserae also exhibit local variation in lacunar density, with the density considerably higher near pores passing through the tesseral layer, suggesting pores and cells interact, and that pores may contain a nutrient source. We propose that the different lacunar types reflect the stages of the tesserae formation process, while also representing local variation in tissue architecture and cell function. Lacunae are linked by small passages (canaliculi) in the matrix to form elongated series at the tesseral periphery and tight clusters in the center of tesserae, creating a rich connectivity among cells. The network arrangement and the shape variation of chondrocytes in tesserae indicate that cells may interact within and between tesserae and manage mineralization differently from chondrocytes in other vertebrates, perhaps performing analogous roles to osteocytes in bone.
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Affiliation(s)
- Júlia Chaumel
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | - Merlind Schotte
- Visual Data Analysis Department, Zuse Institute Berlin, Takustrasse 7, 14195 Berlin, Germany.
| | - Joseph J Bizzarro
- Institute of Marine Sciences, University of California Santa Cruz, Santa Cruz, CA, USA.
| | - Paul Zaslansky
- Department for Operative and Preventive Dentistry, Universitätsmedizin Berlin, Aßmannshauser Str. 4-6 14197 Berlin, Germany.
| | - Peter Fratzl
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | - Daniel Baum
- Visual Data Analysis Department, Zuse Institute Berlin, Takustrasse 7, 14195 Berlin, Germany.
| | - Mason N Dean
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.
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COL2A1 and Caspase-3 as Promising Biomarkers for Osteoarthritis Prognosis in an Equus asinus Model. Biomolecules 2020; 10:biom10030354. [PMID: 32111016 PMCID: PMC7175237 DOI: 10.3390/biom10030354] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/18/2020] [Accepted: 02/21/2020] [Indexed: 01/06/2023] Open
Abstract
Osteoarthritis (OA) is one of the most degenerative joint diseases in both human and veterinary medicine. The objective of the present study was the early diagnosis of OA in donkeys using a reliable grading of the disease based on clinical, chemical, and molecular alterations. OA was induced by intra-articular injection of 25 mg monoiodoacetate (MIA) as a single dose into the left radiocarpal joint of nine donkeys. Animals were clinically evaluated through the assessment of lameness score, radiographic, and ultrasonographic findings for seven months. Synovial fluid and cartilage samples were collected from both normal and diseased joints for the assessment of matrix metalloproteinases (MMPs) activity, COL2A1 protein expression level, and histopathological and immunohistochemical analysis of Caspase-3. Animals showed the highest lameness score post-induction after one week then decreased gradually with the progression of radiographical and ultrasonographic changes. MMP activity and COL2A1 and Caspase-3 expression increased, accompanied by articular cartilage degeneration and loss of proteoglycan. OA was successfully graded in Egyptian donkeys, with the promising use of COL2A1and Caspase-3 for prognosis. However, MMPs failed to discriminate between early and late grades of OA.
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16
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Akyol S, Karagoz Z, Dingil Inan N, Butun I, Benli I, Demircan K, Yigitoglu MR, Akyol O, Sahin S, Ozyurt H. The gene expression and protein profiles of ADAMTS and TIMP in human chondrosarcoma cell lines induced by insulin: The potential mechanisms for skeletal and articular abnormalities in diabetes. ELECTRONIC JOURNAL OF GENERAL MEDICINE 2020. [DOI: 10.29333/ejgm/112767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Salman A, Shabana AI, El-Ghazouly DES, Maha E. Protective effect of glucosamine and risedronate (alone or in combination) against osteoarthritic changes in rat experimental model of immobilized knee. Anat Cell Biol 2019; 52:498-510. [PMID: 31949990 PMCID: PMC6952695 DOI: 10.5115/acb.19.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/25/2019] [Accepted: 05/29/2019] [Indexed: 12/14/2022] Open
Abstract
This study is aiming to investigate the protective effect of glucosamine, risedronate (alone or in combination) on articular cartilage in experimental model of immobilized rat knee. Twenty-five adult male albino rats were divided into five groups (five rats each): control group, immobilized group, glucosamine-treated group, risedronate-treated group, and group treated by a combination of glucosamine and risedronate. The articular cartilage was obtained for histological, immunohistochemical and morphometric studies. The immobilized group showed manifestations of osteoarthritis in the form of significant decrease of articular cartilage thickness with surface erosions, shrunken chondrocytes with pyknotic nuclei and marked manifested fall of chondrocyte number. There was manifested reduction of collagen contents of the articular cartilage using Masson trichrome stain. Safranin O–Fast Green revealed low proteoglycan contents. The collagen type II was also declined. The manikin score was 7.8. Risedronate improved this manifestation slightly more than glucosamine, but combination of booth drugs caused significant improvement of the damaged articular cartilage caused by immobilization. Oral administration of glucosamine and risedronate improved the degenerative changes of rat knee articular cartilage that follow immobilization. This improvement was more remarkable when both drugs were used in combination.
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Affiliation(s)
- Ahmed Salman
- Department of Anatomy, Faculty of Medicine, Menoufia University, Al Minufya, Egypt.,Department of Anatomy and Histology, Faculty of Medicine, The University of Jordan, Amman, Jordan
| | - Atef Ibrahim Shabana
- Department of Anatomy, Faculty of Medicine, Ain Shams University, Cairo, Egypt.,Department of Anatomy, Faculty of Medicine, University of Tabuk, Tabuk, Saudi Arabia
| | | | - Elbeltagy Maha
- Department of Anatomy, Faculty of Medicine, Menoufia University, Al Minufya, Egypt.,Department of Anatomy and Histology, Faculty of Medicine, The University of Jordan, Amman, Jordan
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18
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Luanraksa S, Jindatanmanusan P, Boonsiri T, Nimmanon T, Chaovanalikit T, Arnutti P. An MMP/TIMP ratio scoring system as a potential predictive marker of diabetic foot ulcer healing. J Wound Care 2019; 27:849-855. [PMID: 30557113 DOI: 10.12968/jowc.2018.27.12.849] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVES The mechanism of matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) in diabetic foot ulcers (DFUs) is unclear. The purpose of this study was to describe changes in MMP-1, MMP-9, and TIMP-1 levels during DFU healing, and to search for any correlation in the changes in MMP levels with wound healing, in order to find possible predictors of healing. METHODS Patients with a DFU were recruited and placed into two groups, according to the degree of wound healing: 'good healers' and 'poor healers'. Levels of MMP-1, MMP-9, and TIMP-1 were analysed by ELISA (enzyme-linked immunosorbent assay). RESULTS A total of 22 patients participated in the study. The MMP-1 level was significantly higher at weeks zero (W0) and 12 (W12) in 'good healers' than in 'poor healers' (p=0.045 and 0.008, respectively). In contrast, the MMP-9 level was significantly lower in 'good healers' than in 'poor healers' at W0, W4, and W12 (p=0.001, 0.001 and 0.028, respectively). Receiver operator curve (ROC) analysis of the MMP-9 level, MMP-1/TIMP-1 ratio, and MMP-9/TIMP-1 ratio at W0 provided cut-off levels of 0.38, 0.056, and 9.06, respectively, which were best predictive of a reduction in wound area at W4 ('good healers' versus 'poor healers'; thereby predicting wound healing condition at W12) with a sensitivity of 81.8%, 81.8%, and 90.9%, and a specificity of 64.6%, 55%, and 64.6%, respectively. CONCLUSION A 'poor healing scoring system' is therefore proposed that could be determined on patient admission, which has the potential to be used clinically as a predictor of healing, thus allowing an appropriate treatment plan to be developed.
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Affiliation(s)
- Sivat Luanraksa
- Plastic Surgeon, Division of Plastic and Reconstructive Surgery, Lerdsin Hospital, Bangkok 10500, Thailand
| | - Punyanuch Jindatanmanusan
- Medical Technologist, Division of Pediatric Hematology/Oncology, Department of Pediatric, Phramongkutklao College of Medicine, Bangkok 10400, Thailand
| | - Tanit Boonsiri
- Lecturer, Department of Microbiology, Phramongkutklao College of Medicine, Bangkok 10400, Thailand
| | - Thirayost Nimmanon
- Assistant Professor, Pathologist, Department of Pathology, Phramongkutklao College of Medicine, Bangkok 10400, Thailand
| | - Thiti Chaovanalikit
- Plastic Surgeon, Division of Plastic and Reconstructive Surgery, Lerdsin Hospital, Bangkok 10500, Thailand
| | - Pasra Arnutti
- Assistant Professor, Department of Pathology, Phramongkutklao College of Medicine, Bangkok 10400, Thailand
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19
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Kake T, Imai M, Takahashi N. Effects of β‐carotene on oxazolone‐induced atopic dermatitis in hairless mice. Exp Dermatol 2019; 28:1044-1050. [DOI: 10.1111/exd.14003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/01/2019] [Accepted: 07/01/2019] [Indexed: 12/01/2022]
Affiliation(s)
- Takamichi Kake
- Laboratory of Physiological Chemistry Institute of Medicinal Chemistry Hoshi University Shinagawa, Tokyo Japan
| | - Masahiko Imai
- Laboratory of Physiological Chemistry Institute of Medicinal Chemistry Hoshi University Shinagawa, Tokyo Japan
| | - Noriko Takahashi
- Laboratory of Physiological Chemistry Institute of Medicinal Chemistry Hoshi University Shinagawa, Tokyo Japan
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20
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Puertas-Bartolomé M, Benito-Garzón L, Fung S, Kohn J, Vázquez-Lasa B, San Román J. Bioadhesive functional hydrogels: Controlled release of catechol species with antioxidant and antiinflammatory behavior. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110040. [PMID: 31546368 DOI: 10.1016/j.msec.2019.110040] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/22/2019] [Accepted: 07/30/2019] [Indexed: 12/13/2022]
Abstract
Chronic wounds are particularly difficult to heal and constitute an important global health care problem. Some key factors that make chronic wounds challenging to heal are attributed to the incessant release of free radicals, which activate the inflammatory system and impair the repair of the wound. Intrinsic characteristics of hydrogels are beneficial for wound healing, but the effective control of free radical levels in the wound and subsequent inflammation is still a challenge. Catechol, the key molecule responsible for the mechanism of adhesion of mussels, has been proven to be an excellent radical scavenger and anti-inflammatory agent. Our approach in this work lies in the preparation of a hybrid system combining the beneficial properties of hydrogels and catechol for its application as a bioactive wound dressing to assist in the treatment of chronic wounds. The hydrogel backbone is obtained through a self-covalent crosslinking between chitosan (Ch) and oxidized hyaluronic acid (HAox) in the presence of a synthetic catechol terpolymer, which is subsequently coordinated to Fe to obtain an interpenetrated polymer network (IPN). The structural analysis, catechol release profiles, in vitro biological behavior and in vivo performance of the IPN are analyzed and compared with the semi-IPN (without Fe) and the Ch/HAox crosslinked hydrogels as controls. Catechol-containing hydrogels present high tissue adhesion strength under wet conditions, support growth, migration and proliferation of hBMSCs, protect cells against oxidative stress damage induce by ROS, and promote down-regulation of the pro-inflammatory cytokine IL-1β. Furthermore, in vivo experiments reveal their biocompatibility and stability, and histological studies indicate normal inflammatory responses and faster vascularization, highlighting the performance of the IPN system. The novel IPN design also allows for the in situ controlled and sustained delivery of catechol. Therefore, the developed IPN is a suitable ECM-mimic platform with high cell affinity and bioactive functionalities that, together with the controlled catechol release, will enhance the tissue regeneration process and has a great potential for its application as wound dressing.
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Affiliation(s)
- María Puertas-Bartolomé
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; CIBER-BBN, Institute of Health Carlos III, Monforte de Lemos 3-5 (11), 28029 Madrid, Spain
| | | | - Stephanie Fung
- Rutgers University, New Jersey Center for Biomaterials, 08854 Piscataway, NJ, USA
| | - Joachim Kohn
- Rutgers University, New Jersey Center for Biomaterials, 08854 Piscataway, NJ, USA
| | - Blanca Vázquez-Lasa
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; CIBER-BBN, Institute of Health Carlos III, Monforte de Lemos 3-5 (11), 28029 Madrid, Spain.
| | - Julio San Román
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; CIBER-BBN, Institute of Health Carlos III, Monforte de Lemos 3-5 (11), 28029 Madrid, Spain
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21
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Effect of collagenase-gelatinase ratio on the mechanical properties of a collagen fibril: a combined Monte Carlo-molecular dynamics study. Biomech Model Mechanobiol 2019; 18:1809-1819. [PMID: 31161353 PMCID: PMC6825035 DOI: 10.1007/s10237-019-01178-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 05/27/2019] [Indexed: 12/30/2022]
Abstract
Loading in cartilage is supported primarily by fibrillar collagen, and damage will impair the function of the tissue, leading to pathologies such as osteoarthritis. Damage is initiated by two types of matrix metalloproteinases, collagenase and gelatinase, that cleave and denature the collagen fibrils in the tissue. Experimental and modeling studies have revealed insights into the individual contributions of these two types of MMPs, as well as the mechanical response of intact fibrils and fibrils that have experienced random surface degradation. However, no research has comprehensively examined the combined influences of collagenases and gelatinases on collagen degradation nor studied the mechanical consequences of biological degradation of collagen fibrils. Such preclinical examinations are required to gain insights into understanding, treating, and preventing degradation-related cartilage pathology. To develop these insights, we use sequential Monte Carlo and molecular dynamics simulations to probe the effect of enzymatic degradation on the structure and mechanics of a single collagen fibril. We find that the mechanical response depends on the ratio of collagenase to gelatinase—not just the amount of lost fibril mass—and we provide a possible mechanism underlying this phenomenon. Overall, by characterizing the combined influences of collagenases and gelatinases on fibril degradation and mechanics at the preclinical research stage, we gain insights that may facilitate the development of targeted interventions to prevent the damage and loss of mechanical integrity that can lead to cartilage pathology.
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Pontes-Quero GM, García-Fernández L, Aguilar MR, San Román J, Pérez Cano J, Vázquez-Lasa B. Active viscosupplements for osteoarthritis treatment. Semin Arthritis Rheum 2019; 49:171-183. [PMID: 30878154 DOI: 10.1016/j.semarthrit.2019.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/05/2019] [Accepted: 02/12/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Osteoarthritis is a chronic, painful and disabling disease which prevalence is increasing in developing countries. Patients with osteoarthritis present a reduced synovial fluid viscoelasticity due to a reduction in concentration and molecular weight of hyaluronic acid. Currently, the main treatment used to restore the compromised rheological properties of synovial fluid is the viscosupplementation by hyaluronic acid injections that can be combined with oral anti-inflammatory drugs for pain relief. Combination of viscosupplements with chemical agents or drugs is emerging as a new strategy to provide a double action of synovial fluid viscoelasticity recovery and the therapeutic effect of the bioactive principle. METHODS In this review, we present the latest research on the combination of viscosupplements with active molecules. We conducted a literature review of articles published in different web search engines and categorized according to the active molecule introduced into the viscosupplement. RESULTS Generally, the introduction of anti-inflammatory molecules have shown to improve pain relief although some cytotoxicity has been demonstrated especially for non-steroidal anti-inflammatory drugs. Other molecules such as antioxidant or disease modifying osteoarthritis drugs have been reported to improve viscosupplementation action. Drug delivery systems combined with hyaluronic acid could enhance the activity of the encapsulated molecules and provide better control over the drug release. Finally, biological approaches such as the use of stem cells or platelet-rich plasma seem to be the most promising strategies for cartilage recovery. CONCLUSIONS Combination therapy of viscosupplements with therapeutic agents, drug delivery systems or regenerative therapies can improve viscosupplementation outcome in terms of pain relief and joint functionality. However, further research is needed in order to reach more conclusive results.
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Affiliation(s)
- Gloria María Pontes-Quero
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain; Alodia Farmacéutica SL, Madrid, Spain
| | - Luis García-Fernández
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - María Rosa Aguilar
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain.
| | - Julio San Román
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | | | - Blanca Vázquez-Lasa
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
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Puertas-Bartolomé M, Vázquez-Lasa B, San Román J. Bioactive and Bioadhesive Catechol Conjugated Polymers for Tissue Regeneration. Polymers (Basel) 2018; 10:polym10070768. [PMID: 30960693 PMCID: PMC6403640 DOI: 10.3390/polym10070768] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/03/2018] [Accepted: 07/11/2018] [Indexed: 01/12/2023] Open
Abstract
The effective treatment of chronic wounds constitutes one of the most common worldwide healthcare problem due to the presence of high levels of proteases, free radicals and exudates in the wound, which constantly activate the inflammatory system, avoiding tissue regeneration. In this study, we describe a multifunctional bioactive and resorbable membrane with in-built antioxidant agent catechol for the continuous quenching of free radicals as well as to control inflammatory response, helping to promote the wound-healing process. This natural polyphenol (catechol) is the key molecule responsible for the mechanism of adhesion of mussels providing also the functionalized polymer with bioadhesion in the moist environment of the human body. To reach that goal, synthesized statistical copolymers of N-vinylcaprolactam (V) and 2-hydroxyethyl methacrylate (H) have been conjugated with catechol bearing hydrocaffeic acid (HCA) molecules with high yields. The system has demonstrated good biocompatibility, a sustained antioxidant response, an anti-inflammatory effect, an ultraviolet (UV) screen, and bioadhesion to porcine skin, all of these been key features in the wound-healing process. Therefore, these novel mussel-inspired materials have an enormous potential for application and can act very positively, favoring and promoting the healing effect in chronic wounds.
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Affiliation(s)
- María Puertas-Bartolomé
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
- CIBER's Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Health Institute Carlos III, C/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain.
| | - Blanca Vázquez-Lasa
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
- CIBER's Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Health Institute Carlos III, C/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain.
| | - Julio San Román
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
- CIBER's Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Health Institute Carlos III, C/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain.
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Zhang J, Wang S, Rong G, Cheng F, Gui B, Shen C. Tetrahydrohyperforin prevents articular cartilage degeneration and affects autophagy in rats with osteoarthritis. Exp Ther Med 2018; 15:5261-5268. [PMID: 29896219 PMCID: PMC5994784 DOI: 10.3892/etm.2018.6098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 03/09/2018] [Indexed: 12/19/2022] Open
Abstract
Osteoarthritis (OA) is a highly prevalent disease, which is associated with extracellular matrix degradation and cell death in articular cartilage. The aim of the present study was to identify whether tetrahydrohyperforin (IDN5706) ameliorates the degeneration of articular cartilage and affects autophagy in OA. The rat model of experimental OA was induced by intra-articular injection of collagenase solution. IDN5706 was administered intragastrically to rats for 6 weeks. Histopathological changes in articular cartilage were examined using hematoxylin and eosin (H&E) and safranin O staining, and Mankin scoring systems. The effect of IDN5706 on autophagy was examined using western blotting. ELISA was performed to detect cartilage inflammation. H&E and safranin O staining, Mankin scores, and electron microscopy indicated that IDN5706 could lessen the degeneration of articular cartilage in OA rats. In addition, western blotting revealed that IDN5706 treatment may activate the suppressed autophagy in OA rats. In conclusion, the present study demonstrated that IDN5706 was able to reduce the severity of experimental OA, alleviate the degeneration of articular cartilage, and affect autophagy in OA model rats.
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Affiliation(s)
- Jinling Zhang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Sisheng Wang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Genxiang Rong
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Fangyue Cheng
- Department of Rheumatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Binjie Gui
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Cailiang Shen
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
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Liphardt AM, Mündermann A, Andriacchi TP, Achtzehn S, Heer M, Mester J. Sensitivity of serum concentration of cartilage biomarkers to 21-days of bed rest. J Orthop Res 2018; 36:1465-1471. [PMID: 29077223 DOI: 10.1002/jor.23786] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 10/13/2017] [Indexed: 02/04/2023]
Abstract
UNLABELLED The objective of the study was to test the hypothesis that serum levels of cartilage oligomeric matrix protein (COMP) would decrease and serum levels of tumor-necrosis factor alpha (TNF-α) and selected matrix metalloproteinases (MMPs) would increase in response to bed rest (BR) and that these changes are unaffected by the intake of potassium bicarbonate or whey protein. Seven and nine healthy male subjects participated in two 21-day 6° head down tilt crossover BR-studies with nutrition interventions. Serum samples were taken before, during, and after BR and biomarker concentrations were measured using commercial enzyme-linked immunosorbent assays. MMP-3 during BR was significantly lower than at baseline (reduction greater 20%; p < 0.001). MMP-3 increased significantly from 14 to 21 days of BR (+7%; p = 0.049). COMP during BR was significantly lower than at baseline (reduction greater 20%; p < 0.001). MMP-3 and COMP returned to baseline within 1 day after BR. MMP-9 on day 3 of BR was significantly lower than at baseline (-31%; p < 0.033) and on days 3, 5, and 14 of BR significantly lower than at the end of and after BR (reduction greater 35%; p < 0.030). The nutritional countermeasures did not affect these results. The observed changes in cartilage biomarkers may be caused by altered cartilage metabolism in response to the lack of mechanical stimulus during BR and inflammatory biomarkers may play a role in changes in biomarker levels. CLINICAL RELEVANCE Immobilization independently from injury can cause altered cartilage biomarker concentration. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1465-1471, 2018.
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Affiliation(s)
- Anna-Maria Liphardt
- German Sport University Cologne (DSHS Köln), Training Science and Sport Informatics, Köln, Germany.,German Sport University Cologne (DSHS Köln), Biomechanics and Orthopaedics, Köln, Germany.,Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nuremberg (FAU) and Universitätsklinikum, Ulmenweg 18, Erlangen, 91054, Germany
| | - Annegret Mündermann
- Clinic for Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland.,Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Thomas P Andriacchi
- Department of Mechanical Engineering, Stanford University,, Stanford, California
| | - Silvia Achtzehn
- German Sport University Cologne (DSHS Köln), Training Science and Sport Informatics, Köln, Germany
| | - Martina Heer
- Department of Nutrition and Food Science, Nutrition Physiology, University of Bonn, Bonn, Germany
| | - Joachim Mester
- German Sport University Cologne (DSHS Köln), Training Science and Sport Informatics, Köln, Germany
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26
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Jacintho APP, Melo GD, Machado GF, Bertolo PHL, Moreira PRR, Momo C, Souza TA, Vasconcelos RDO. Expression of matrix metalloproteinase-2 and metalloproteinase-9 in the skin of dogs with visceral leishmaniasis. Parasitol Res 2018; 117:1819-1827. [PMID: 29671048 DOI: 10.1007/s00436-018-5868-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 04/06/2018] [Indexed: 12/21/2022]
Abstract
The skin is the first organ to be infected by the parasite in canine visceral leishmaniasis. The enzyme matrix metalloproteinase (MMP) acts towards degradation of the extracellular matrix (ECM) and modulation of the inflammatory response against many kinds of injuries. The aims of this study were to evaluate the expression of MMP-2 and MMP-9 through immunohistochemistry and zymography on the skin (muzzle, ears, and abdomen) of dogs that were naturally infected by Leishmania spp. and to compare these results with immunodetection of the parasite and with alterations to the dermal ECM. Picrosirius red staining was used to differentiate collagen types I and III in three regions of the skin. The parasite load, intensity of inflammation, and production of MMP-2 (latent) and MMP-9 (active and latent) were higher in the ear and muzzle regions. MMP-9 (active) predominated in the infected group of dogs and its production was significantly different to that of the control group. Macrophages, lymphocytes, and plasma cells predominated in the dermal inflammation and formed granulomas in association with degradation of mature collagen (type I) and with discrete deposition of young collagen (type III). This dermal change was more pronounced in dogs with high parasite load in the skin. Therefore, it was concluded that the greater parasite load and intensity of inflammation in the skin led consequently to increased degradation of mature collagen, caused by increased production of MMPs, particularly active MMP-9, in dogs with visceral leishmaniasis. This host response profile possibly favors systemic dissemination of the parasite.
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Affiliation(s)
- Ana Paula Prudente Jacintho
- Department of Veterinary Medicine, Rio Preto University Center (UNIRP), São José do Rio Preto, São Paulo, Brazil
| | - Guilherme D Melo
- Department of Infection and Epidemiology (IE), Pasteur Institute, Paris, France
| | - Gisele F Machado
- Department of Clinical Medicine, Surgery and Animal Reproduction, Araçatuba School of Veterinary Medicine (FMVA), São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Paulo Henrique Leal Bertolo
- Department of Veterinary Pathology, School of Veterinary and Agrarian Sciences (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, Brazil
| | - Pamela Rodrigues Reina Moreira
- Department of Veterinary Pathology, School of Veterinary and Agrarian Sciences (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, Brazil. .,Departamento de Patologia Veterinária, FCAV - Universidade Estadual Paulista (UNESP), Via de Acesso Prof. Paulo Donato Castellane, s/n, Jaboticabal, São Paulo, 14884-900, Brazil.
| | - Claudia Momo
- Department of Pathology, School of Veterinary Medicine and Animal Science (FMVZ), University of São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Thiago A Souza
- Department of Veterinary Pathology, School of Veterinary and Agrarian Sciences (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, Brazil
| | - Rosemeri de Oliveira Vasconcelos
- Department of Veterinary Pathology, School of Veterinary and Agrarian Sciences (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, Brazil
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Abstract
PURPOSE OF REVIEW Diabetic foot ulcerations (DFU) affect 25% of patients with diabetes mellitus during their lifetime and constitute a major health problem as they are often recalcitrant to healing due to a constellation of both intrinsic and extrinsic factors. The purpose of this review is to (1) detail the current mechanistic understanding of DFU formation and (2) highlight future therapeutic targets. RECENT FINDINGS From a molecular perspective, DFUs exhibit a chronic inflammatory predisposition. In addition, increased local hypoxic conditions and impaired cellular responses to hypoxia are pathogenic factors that contribute to delayed wound healing. Finally, recent evidence suggests a role for epigenetic alterations, including microRNAs, in delayed DFU healing due to the complex interplay between genes and the environment. In this regard, notable progress has been made in the molecular and genetic understanding of DFU formation. However, further studies are needed to translate preclinical investigations into clinical therapies.
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Affiliation(s)
- Frank M Davis
- Department of Surgery, Section of Vascular Surgery, University of Michigan, 5364 Cardiovascular Center, 1500 E. Medical Center Drive, Ann Arbor, MI, 48109-5867, USA
| | - Andrew Kimball
- Department of Surgery, Section of Vascular Surgery, University of Michigan, 5364 Cardiovascular Center, 1500 E. Medical Center Drive, Ann Arbor, MI, 48109-5867, USA
| | - Anna Boniakowski
- Department of Surgery, Section of Vascular Surgery, University of Michigan, 5364 Cardiovascular Center, 1500 E. Medical Center Drive, Ann Arbor, MI, 48109-5867, USA
| | - Katherine Gallagher
- Department of Surgery, Section of Vascular Surgery, University of Michigan, 5364 Cardiovascular Center, 1500 E. Medical Center Drive, Ann Arbor, MI, 48109-5867, USA.
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28
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Øya E, Afanou AKJ, Malla N, Uhlig S, Rolen E, Skaar I, Straumfors A, Winberg JO, Bang BE, Schwarze PE, Eduard W, Holme JA. Characterization and pro-inflammatory responses of spore and hyphae samples from various mold species. INDOOR AIR 2018; 28:28-39. [PMID: 28922584 DOI: 10.1111/ina.12426] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 09/07/2017] [Indexed: 06/07/2023]
Abstract
Mold particles from Aspergillus fumigatus, Penicillium chrysogenum, Aspergillus versicolor, and Stachybotrys chartarum have been linked to respiratory-related diseases. We characterized X-ray-inactivated spores and hyphae fragments from these species by number of particles, morphology, and mycotoxin, β-glucan and protease content/activity. The pro-inflammatory properties of mold particles were examined in human bronchial epithelial cells (BEAS-2B) and THP-1 monocytes and phorbol 12-myristate 13-acetate (PMA)-differentiated THP-1. Spores from P. chrysogenum and S. chartarum contained some hyphae fragments, whereas the other preparations contained either spores or hyphae. Each mold species produced mainly one gelatin-degrading protease that was either of the metallo- or serine type, while one remains unclassified. Mycotoxin levels were generally low. Detectable levels of β-glucans were found mainly in hyphae particle preparations. PMA-differentiated THP-1 macrophages were by far the most sensitive model with effects in the order of 10 ng/cm2 . Hyphae preparations of A. fumigatus and P. chrysogenum were more potent than respective spore preparations, whereas the opposite seems to be true for A. versicolor and S. chartarum. Hyphae fragments of A. fumigatus, P. chrysogenum, and A. versicolor enhanced the release of metalloprotease (proMMP-9) most markedly. In conclusion, species, growth stage, and characteristics are all important factors for pro-inflammatory potential.
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Affiliation(s)
- E Øya
- Department of Air and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - A K J Afanou
- Department for the Chemical and Biological Work Environment, National Institute of Occupational Health, Oslo, Norway
| | - N Malla
- Department of Occupational and Environmental Medicine, University Hospital of North Norway, Tromsø, Norway
| | - S Uhlig
- Norwegian Veterinary Institute, Oslo, Norway
| | - E Rolen
- Norwegian Veterinary Institute, Oslo, Norway
| | - I Skaar
- Norwegian Veterinary Institute, Oslo, Norway
| | - A Straumfors
- Department for the Chemical and Biological Work Environment, National Institute of Occupational Health, Oslo, Norway
| | - J O Winberg
- Department of Medical Biology, Faculty of Health Sciences, The Arctic University of Norway, Tromsø, Norway
| | - B E Bang
- Department of Occupational and Environmental Medicine, University Hospital of North Norway, Tromsø, Norway
- Department of Medical Biology, Faculty of Health Sciences, The Arctic University of Norway, Tromsø, Norway
| | - P E Schwarze
- Department of Air and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - W Eduard
- Department for the Chemical and Biological Work Environment, National Institute of Occupational Health, Oslo, Norway
| | - J A Holme
- Department of Air and Noise, Norwegian Institute of Public Health, Oslo, Norway
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29
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A. Richard S. High-mobility group box 1 is a promising diagnostic and therapeutic monitoring biomarker in Cancers: A review. AIMS MOLECULAR SCIENCE 2018. [DOI: 10.3934/molsci.2018.4.183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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30
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Stoker AM, Stannard JP, Kuroki K, Bozynski CC, Pfeiffer FM, Cook JL. Validation of the Missouri Osteochondral Allograft Preservation System for the Maintenance of Osteochondral Allograft Quality During Prolonged Storage. Am J Sports Med 2018; 46:58-65. [PMID: 28937783 DOI: 10.1177/0363546517727516] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Fresh osteochondral allografts (OCAs) are limited in availability. The Missouri Osteochondral Allograft Preservation System (MOPS) has been reported to effectively preserve OCAs twice as long as current tissue bank protocols in preclinical studies. HYPOTHESIS The viable chondrocyte density (VCD) in OCAs preserved for up to 70 days using the MOPS will not be significantly different from day 0, and the VCD in MOPS-preserved OCAs will be significantly higher than for standard tissue bank preservation. Media changes during preservation will significantly improve the VCD. STUDY DESIGN Controlled laboratory study. METHODS Femoral condyles harvested from qualified donors (n = 12) were quartered (n = 48), assigned to 1 of 4 treatment groups (tissue bank protocol at 4°C or MOPS at 25°C, with or without media changes), and preserved for 0, 28, 56, or 70 days and assessed for the VCD and histopathological characteristics. In addition, osteochondral explants were created from the femoral condyles of 12 donors (n = 36 explants), assigned to the same groups and time points, and tested for biomechanical properties. RESULTS MOPS-preserved OCAs maintained the day 0 VCD through 56 days. OCAs stored using current tissue bank protocols had a significantly lower VCD compared with day 0 and the MOPS by day 28. OCA histological and biomechanical properties did not significantly change from day 0 for any group. CONCLUSION The MOPS preserved essential OCA viability and quality at significantly higher levels than current tissue bank protocols for at least 56 days after procurement. CLINICAL RELEVANCE Improving the viability and duration of OCA preservation provides potential benefits to tissue banks, donor families, surgeons, and patients with respect to tissue use, financial costs, and outcomes.
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Affiliation(s)
- Aaron M Stoker
- Department of Orthopaedic Surgery, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri, USA.,Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA
| | - James P Stannard
- Department of Orthopaedic Surgery, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri, USA.,Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA
| | - Keiichi Kuroki
- Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA
| | - Chantelle C Bozynski
- Department of Orthopaedic Surgery, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri, USA.,Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA
| | - Ferris M Pfeiffer
- Department of Orthopaedic Surgery, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri, USA.,Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA.,Department of Bioengineering, University of Missouri, Columbia, Missouri, USA
| | - James L Cook
- Department of Orthopaedic Surgery, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri, USA.,Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA
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31
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Malaspina DC, Szleifer I, Dhaher Y. Mechanical properties of a collagen fibril under simulated degradation. J Mech Behav Biomed Mater 2017; 75:549-557. [DOI: 10.1016/j.jmbbm.2017.08.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 08/10/2017] [Accepted: 08/15/2017] [Indexed: 10/19/2022]
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32
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Goto N, Okazaki K, Akasaki Y, Ishihara K, Murakami K, Koyano K, Ayukawa Y, Yasunami N, Masuzaki T, Nakashima Y. Single intra-articular injection of fluvastatin-PLGA microspheres reduces cartilage degradation in rabbits with experimental osteoarthritis. J Orthop Res 2017; 35:2465-2475. [PMID: 28303595 DOI: 10.1002/jor.23562] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 03/14/2017] [Indexed: 02/04/2023]
Abstract
Statins are cholesterol-lowering drugs that inhibit 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase, a rate-limiting enzyme of the mevalonate pathway. The anti-inflammatory effect of statins has been reported in recent years. The present study investigated therapeutic effects of the local administration of statin in osteoarthritis (OA). We assessed clinically used statins and selected fluvastatin for further experimentation, as it showed potent anabolic and anti-catabolic effects on human OA chondrocytes. To achieve controlled intra-articular administration of statin, we developed an intra-articular injectable statin using poly(lactic-co-glycolic acid) (PLGA) as a drug delivery system (DDS). The release profile of the statin was evaluated in vitro. Finally, therapeutic effects of fluvastatin-loaded PLGA microspheres (FLU-PLGA) were tested in a rabbit OA model. Rabbit knees were divided into four subgroups: group 1-A, PLGA-treated group; group 1-B, PLGA contralateral saline control group; group 2-A, FLU-PLGA-treated group; and group 2-B, FLU-PLGA contralateral saline control group. Histological analysis 5 weeks after intra-articular injection revealed that OARSI scores were lower in group 2-A. No significant differences in OARSI scores were observed between groups 1-A, 1-B, and 2-B. This study indicates that a single intra-articular injection of fluvastatin-loaded PLGA microspheres could be a novel therapeutic approach for treating patients with OA. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:2465-2475, 2017.
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Affiliation(s)
- Norio Goto
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ken Okazaki
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yukio Akasaki
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kohei Ishihara
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Koji Murakami
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kiyoshi Koyano
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yasunori Ayukawa
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Noriyuki Yasunami
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Tomohiro Masuzaki
- Department of Oral Maxillofacial Prosthodontics, Field of Oral and Maxillofacial Rehabilitation, Advanced Therapeutic Course, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima, 890-8544, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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Hashimoto K, Oda Y, Nakamura F, Kakinoki R, Akagi M. Lectin-like, oxidized low-density lipoprotein receptor-1-deficient mice show resistance to age-related knee osteoarthritis. Eur J Histochem 2017; 61:2762. [PMID: 28348422 PMCID: PMC5327749 DOI: 10.4081/ejh.2017.2762] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 02/08/2017] [Accepted: 02/08/2017] [Indexed: 01/09/2023] Open
Abstract
The lectin-like, oxidized low-density lipoprotein (ox-LDL) receptor-1 (LOX-1)/ox-LDL system contributes to atherosclerosis and may be involved in cartilage degeneration. The purpose of this study was to determine whether the LOX-1/ox-LDL system contributes to age-related osteoarthritis (OA) in vivo, using LOX-1 knockout (LOX-1 KO) mice. Knee cartilage from 6, 12, and 18-month old (n = 10/group) C57Bl/6 wild-type (WT) and LOX-1 KO mice was evaluated by determining the Osteoarthritis Research Society International (OARSI) score of Safranin-O stained samples. The prevalence of knee OA in both mouse strains was also investigated. Expression levels of LOX-1, ox-LDL, runt-related transcription factor-2 (Runx2), type-X collagen (COL X), and matrix metalloproteinase-13 (MMP-13) in the articular chondrocytes were analyzed immunohistologically. No significant difference was observed in the mean scores of WT (2.00±0.61) and LOX-1 KO mice (2.00±0.49) at 6 months of age (P=1.00, n=10). At 12 and 18 months of age, the mean scores of LOX-1 KO mice (3.75±0.93 and 5.50±0.78) were significantly lower than those of WT mice (5.25±1.14 and 9.00±1.01; P<0.001 in both cases; n=10). The prevalence of OA in LOX-1 KO mice was lower than that in WT mice at 12 and 18 months of age (40 vs 70%, 70 vs 90%, respectively; n=10). The expression levels of Runx2, COL X, and MMP-13 in articular chondrocytes significantly decreased in LOX-1 KO, mice compared with those in WT mice. The study indicated that the LOX-1/ox-LDL system in chondrocytes plays a role in the pathogenesis of age-related knee OA, which is potentially a target for preventing OA progression.
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Hu J, Zhai C, Hu J, Li Z, Fei H, Wang Z, Fan W. MiR-23a inhibited IL-17-mediated proinflammatory mediators expression via targeting IKKα in articular chondrocytes. Int Immunopharmacol 2017; 43:1-6. [DOI: 10.1016/j.intimp.2016.11.031] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 11/25/2016] [Indexed: 10/20/2022]
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Vuong TT, Rønning SB, Kolset SO, Pedersen ME. The enzyme profiles in the connective tissue attaching pin bones to the surrounding tissue is specific in farmed salmon (Salmo salar) and cod (Gadus morhua L.). FISH PHYSIOLOGY AND BIOCHEMISTRY 2017; 43:19-25. [PMID: 27394140 PMCID: PMC5306258 DOI: 10.1007/s10695-016-0264-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 07/04/2016] [Indexed: 06/06/2023]
Abstract
Post mortem storage is a necessary process for removal of pin bones without destruction of fillets, thereby avoiding volume and economic loss. However, the enzymes involved in loosening pin bones during storage have not been studied to a great extent. In this study, the activities and localization of MMPs in the connective tissue (CT) of pin bones dissected from fillet of salmon and cod were investigated. Interestingly, the enzyme activity profile in these two species was different during post mortem storage of fish fillets. Adding MMP inhibitor (GM6001) and serine protease inhibitor (Pefabloc) revealed different effects in the two species, suggesting different regulations in salmon and cod. In situ zymography with the same inhibitors verified MMP and serine protease activity in CT close to pin bone at early post mortem (6 h) in salmon. However, MMP inhibition was not evident in cod in this area at that time point. Immunohistochemistry further revealed MMP9 and MMP13 were located more to the outer rim of CT, facing the pin bone and adipose tissue, while MMP7 was more randomly distributed within CT in salmon. In contrast, all these three MMPs were randomly distributed in CT in cod. In summary, our study reveals different MMP enzyme profiles in salmon and cod in the pin bone area, influenced by serine proteases, and suggests that MMPs and serine proteases must be taken in consideration when studying the conditions for early pin bone removal.
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Affiliation(s)
- Tram T Vuong
- Nofima AS, Norwegian Institute of Food, Fisheries and Aquaculture Research, Postboks 210, 1431, Ås, Norway.
| | - Sissel B Rønning
- Nofima AS, Norwegian Institute of Food, Fisheries and Aquaculture Research, Postboks 210, 1431, Ås, Norway
| | - Svein O Kolset
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Mona E Pedersen
- Nofima AS, Norwegian Institute of Food, Fisheries and Aquaculture Research, Postboks 210, 1431, Ås, Norway
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Fischer T, Riedl R. Targeted Fluoro Positioning for the Discovery of a Potent and Highly Selective Matrix Metalloproteinase Inhibitor. ChemistryOpen 2017; 6:192-195. [PMID: 28413749 PMCID: PMC5390795 DOI: 10.1002/open.201600158] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Indexed: 12/28/2022] Open
Abstract
The incorporation of fluorine atoms into functional molecules is of wide interest in synthetic organic chemistry as well as cognate disciplines. In particular, in medicinal chemistry, there is a strong desire to positively influence the physicochemical molecular properties of drug compounds by introducing fluorine into biologically active molecules. Here, we present targeted fluoro positioning as the key design principle of converting a weak matrix metalloproteinase‐13 (MMP‐13) inhibitor into a very potent (IC50=6 nm) and highly selective (selectivity factors of >1000 over MMP‐1, 2, 3, 7, 8, 9, 10, 12, 14) inhibitor with excellent plasma and microsomal stability, and no binding to the hERG channel (hERG: human ether‐a‐go‐go related gene).
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Affiliation(s)
- Thomas Fischer
- Institute of Chemistry and Biotechnology Center for Organic and Medicinal Chemistry Zurich University of Applied Sciences (ZHAW) Einsiedlerstrasse 318820 Wädenswil Switzerland
| | - Rainer Riedl
- Institute of Chemistry and Biotechnology Center for Organic and Medicinal Chemistry Zurich University of Applied Sciences (ZHAW) Einsiedlerstrasse 318820 Wädenswil Switzerland
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Gu JJ, Zhang JH, Chen HJ, Wang SS. TPX2 promotes glioma cell proliferation and invasion via activation of the AKT signaling pathway. Oncol Lett 2016; 12:5015-5022. [PMID: 28105208 PMCID: PMC5228448 DOI: 10.3892/ol.2016.5371] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 10/14/2016] [Indexed: 02/04/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most common and most malignant type of primary adult brain cancer. The most common phenotype associated with GBM is cellular invasion; however, the molecular mechanisms governing this process are poorly understood. Targeting protein for Xenopus kinesin-like protein 2 (TPX2) is a nuclear protein with roles in cellular proliferation and mitotic spindle assembly. TPX2 is overexpressed in various malignancies, including human malignant astrocytoma. Despite this finding, the exact role of TPX2 in human glioma is not well defined. The present study reports the elevated expression of TPX2 in a number of glioma cell lines. TPX2 overexpression promoted cellular proliferation, decreased the percentage of cells in G0/G1 phase, and increased invasion of both U251 and U87 cells. Overexpression of TPX2 also significantly enhanced the phosphorylation of AKT, decreased the expression of p21, and increased the expression of cyclin D1 and matrix metallopeptidase (MMP)-9. In both U251 and U87 cells, knockdown of TPX2 resulted in phenotypes that are in direct contrast to those observed following TPX2 overexpression. Specifically, TPX2 knockdown inhibited cell proliferation, increased the percentage of cells in G0/G1 phase, inhibited invasion, decreased AKT phosphorylation, decreased the expression of MMP-9 and cyclin D1, and increased p21 expression. The AKT inhibitor IV in large part phenocopied the effect of TPX2 knockdown. The present data suggest that TPX2 promotes glioma cell proliferation and invasion via AKT signaling.
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Affiliation(s)
- Jian-Jun Gu
- Department of Neurosurgery, Fuzhou General Hospital, Xiamen University Medical College, Fuzhou, Fujian 350025, P.R. China; Department of Neurosurgery, Taizhou People's Hospital Affiliated to Medical College of Nantong University, Taizhou, Jiangsu 225300, P.R. China
| | - Jian-He Zhang
- Department of Neurosurgery, Fuzhou General Hospital, Xiamen University Medical College, Fuzhou, Fujian 350025, P.R. China
| | - Hong-Jie Chen
- Department of Neurosurgery, Fuzhou General Hospital, Xiamen University Medical College, Fuzhou, Fujian 350025, P.R. China
| | - Shou-Sen Wang
- Department of Neurosurgery, Fuzhou General Hospital, Xiamen University Medical College, Fuzhou, Fujian 350025, P.R. China
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Ghazanfari S, Khademhosseini A, Smit TH. Mechanisms of lamellar collagen formation in connective tissues. Biomaterials 2016; 97:74-84. [DOI: 10.1016/j.biomaterials.2016.04.028] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 03/29/2016] [Accepted: 04/20/2016] [Indexed: 12/16/2022]
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Fadda S, Abolkheir E, Afifi R, Gamal M. Serum matrix metalloproteinase-3 in rheumatoid arthritis patients: Correlation with disease activity and joint destruction. EGYPTIAN RHEUMATOLOGIST 2016. [DOI: 10.1016/j.ejr.2016.01.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Davidson RK, Jupp O, Bao Y, MacGregor AJ, Donell ST, Cassidy A, Clark IM. Can sulforaphane prevent the onset or slow the progression of osteoarthritis? NUTR BULL 2016. [DOI: 10.1111/nbu.12207] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R. K. Davidson
- School of Biological Sciences; University of East Anglia; Norwich UK
| | - O. Jupp
- School of Biological Sciences; University of East Anglia; Norwich UK
| | - Y. Bao
- Norwich Medical School; University of East Anglia; Norwich UK
| | - A. J. MacGregor
- Norwich Medical School; University of East Anglia; Norwich UK
| | - S. T. Donell
- Norwich Medical School; University of East Anglia; Norwich UK
| | - A. Cassidy
- Norwich Medical School; University of East Anglia; Norwich UK
| | - I. M. Clark
- School of Biological Sciences; University of East Anglia; Norwich UK
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Fischer T, Riedl R. Molecular Recognition of the Catalytic Zinc(II) Ion in MMP-13: Structure-Based Evolution of an Allosteric Inhibitor to Dual Binding Mode Inhibitors with Improved Lipophilic Ligand Efficiencies. Int J Mol Sci 2016; 17:314. [PMID: 26938528 PMCID: PMC4813177 DOI: 10.3390/ijms17030314] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/02/2016] [Accepted: 02/14/2016] [Indexed: 11/21/2022] Open
Abstract
Matrix metalloproteinases (MMPs) are a class of zinc dependent endopeptidases which play a crucial role in a multitude of severe diseases such as cancer and osteoarthritis. We employed MMP-13 as the target enzyme for the structure-based design and synthesis of inhibitors able to recognize the catalytic zinc ion in addition to an allosteric binding site in order to increase the affinity of the ligand. Guided by molecular modeling, we optimized an initial allosteric inhibitor by addition of linker fragments and weak zinc binders for recognition of the catalytic center. Furthermore we improved the lipophilic ligand efficiency (LLE) of the initial inhibitor by adding appropriate zinc binding fragments to lower the clogP values of the inhibitors, while maintaining their potency. All synthesized inhibitors showed elevated affinity compared to the initial hit, also most of the novel inhibitors displayed better LLE. Derivatives with carboxylic acids as the zinc binding fragments turned out to be the most potent inhibitors (compound 3 (ZHAWOC5077): IC50 = 134 nM) whereas acyl sulfonamides showed the best lipophilic ligand efficiencies (compound 18 (ZHAWOC5135): LLE = 2.91).
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Affiliation(s)
- Thomas Fischer
- Center for Organic and Medicinal Chemistry, Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences ZHAW, Einsiedlerstrasse 31, 8820 Wädenswil, Switzerland.
| | - Rainer Riedl
- Center for Organic and Medicinal Chemistry, Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences ZHAW, Einsiedlerstrasse 31, 8820 Wädenswil, Switzerland.
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AKYOL S, GÜLEÇ MA, DEMİRİN H, AKYOL Ö. Regeneration and healing of bone and cartilage in type-1 and type-2 diabetes: the effects of insulin. Turk J Biol 2016. [DOI: 10.3906/biy-1507-46] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Nguyen AH, Wang Y, White DE, Platt MO, McDevitt TC. MMP-mediated mesenchymal morphogenesis of pluripotent stem cell aggregates stimulated by gelatin methacrylate microparticle incorporation. Biomaterials 2015; 76:66-75. [PMID: 26519649 DOI: 10.1016/j.biomaterials.2015.10.043] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 10/15/2015] [Accepted: 10/18/2015] [Indexed: 01/03/2023]
Abstract
Matrix metalloproteinases (MMPs) remodel the extracellular matrix (ECM) to facilitate epithelial-to-mesenchymal transitions (EMTs) and promote cell specification during embryonic development. In this study, we hypothesized that introducing degradable ECM-based biomaterials to pluripotent stem cell (PSC) aggregates would modulate endogenous proteolytic activity and consequently enhance the differentiation and morphogenesis within 3D PSC aggregates. Gelatin methacrylate (GMA) microparticles (MPs) of low (∼20%) or high (∼90%) cross-linking densities were incorporated into mouse embryonic stem cell (ESC) aggregates, and the effects on MMP activity and cell differentiation were examined with or without MMP inhibition. ESC aggregates containing GMA MPs expressed significantly higher levels of total MMP and MMP-2 than aggregates without MPs. GMA MP incorporation increased expression of EMT markers and enhanced mesenchymal morphogenesis of PSC aggregates. MMP inhibition completely abrogated these effects, and GMA MP-induced MMP activation within ESC aggregates was partially reduced by pSMAD 1/5/8 inhibition. These results suggest that GMA particles activate MMPs by protease-substrate interactions to promote EMT and mesenchymal morphogenesis of ESC aggregates in an MMP-dependent manner. We speculate that controlling protease activity via the introduction of ECM-based materials may offer a novel route to engineer the ECM microenvironment to modulate stem cell differentiation.
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Affiliation(s)
- Anh H Nguyen
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Yun Wang
- The Gladstone Institute for Cardiovascular Disease, San Francisco, CA, USA
| | - Douglas E White
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Manu O Platt
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA; The Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
| | - Todd C McDevitt
- The Gladstone Institute for Cardiovascular Disease, San Francisco, CA, USA; Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA.
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Depletion of SIRT6 causes cellular senescence, DNA damage, and telomere dysfunction in human chondrocytes. Osteoarthritis Cartilage 2015; 23:1412-20. [PMID: 25819580 DOI: 10.1016/j.joca.2015.03.024] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 03/15/2015] [Accepted: 03/18/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE SIRT6, a member of the sirtuin family of nicotinamide adenine dinucleotide (NAD(+))-dependent protein deacetylases, has been implicated as a key factor in aging-related diseases. However, the role of SIRT6 in chondrocytes has not been fully explored. The purpose of this study was to examine the role of SIRT6 in human chondrocytes by inhibiting SIRT6 in vitro. DESIGN First, the localization of SIRT6 and proliferation cell nuclear antigen (PCNA) in human cartilages was examined by immunohistochemistry. Next, SIRT6 was depleted by RNA interference (RNAi), and the effect of SIRT6 depletion on changes in gene expression, protein levels, proliferation, and senescence in human chondrocytes was assessed. Furthermore, to detect DNA damage and telomere dysfunction, γH2AX foci and telomere dysfunction-induced foci (TIFs) were examined using immunofluorescence microscopy. The protein levels of two mediators for DNA damage induced-senescence, p16 and p21, were examined by western blotting. RESULTS Immunohistochemical analysis showed SIRT6 was preferentially expressed in the superficial zone chondrocytes and PCNA-positive cluster-forming chondrocytes in the osteoarthritic cartilage tissue samples. Real-time PCR analysis showed that matrix metalloproteinase 1 (MMP-1) and MMP-13 mRNA were significantly increased by SIRT6 inhibition. Moreover, SIRT6 inhibition significantly reduced proliferation and increased senescence associated β-galactosidase (SA-β-Gal)-positive chondrocytes; it also led to increased p16 levels. Immunofluorescence microscopy showed that γH2AX foci and TIFs were increased by SIRT6 inhibition. CONCLUSION Depletion of SIRT6 in human chondrocytes caused increased DNA damage and telomere dysfunction, and subsequent premature senescence. These findings suggest that SIRT6 plays an important role in the regulation of senescence of human chondrocytes.
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Natenstedt J, Kok AC, Dankelman J, Tuijthof GJ. What quantitative mechanical loading stimulates in vitro cultivation best? J Exp Orthop 2015; 2:15. [PMID: 26914883 PMCID: PMC4538712 DOI: 10.1186/s40634-015-0029-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 05/26/2015] [Indexed: 11/10/2022] Open
Abstract
Articular cartilage has limited regeneration capacities. One of the factors that appear to affect the in vitro cultivation of articular cartilage is mechanical stimulation. So far, no combination of parameters has been identified that offers the best results. The goal is to review the literature in search of the best available set of quantitative mechanical stimuli that lead to optimal in vitro cultivation.The databases Scopus and PubMed were used to survey the literature, and strict in- and exclusion criteria were applied regarding the presence of quantitative data. The review was performed by studying the type of loading (hydrostatic compression or direct compression), the loading magnitude, the frequency and the loading regime (duration of the loading) in comparison to quantitative evidence of cartilage quality response (cellular, signaling and mechanical).Thirty-three studies met all criteria of which 8 studied human, 20 bovine, 2 equine, 1 ovine, 1 porcine and 1 canine cells using four different types of cultivated constructs. Six studies investigated loading magnitude within the same setup, three studies the frequency, and seven the loading regime. Nine studies presented mechanical tissue response. The studies suggest that a certain threshold exits for enhanced cartilage in vitro cultivation of explants (>20 % strain and 0.5 Hz), and that chondrocyte-seeded cultivated constructs show best results when loaded with physiological mechanical stimuli. That is a loading pressure between 5-10 MPa and a loading frequency of 1 Hz exerted at intermittent intervals for a period of a week or longer. Critical aspects remain to be answered for translation into in vivo therapies.
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Affiliation(s)
- Jerry Natenstedt
- Department of Biomechanical Engineering, Faculty of Mechanical, Materials and Maritime Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628 CD, The Netherlands.
| | - Aimee C Kok
- Department of Orthopedic Surgery, Academic Medical Centre, Meibergdreef 9, Amsterdam, AZ, 1105, The Netherlands.
| | - Jenny Dankelman
- Department of Biomechanical Engineering, Faculty of Mechanical, Materials and Maritime Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628 CD, The Netherlands.
| | - Gabrielle Jm Tuijthof
- Department of Biomechanical Engineering, Faculty of Mechanical, Materials and Maritime Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628 CD, The Netherlands. .,Department of Orthopedic Surgery, Academic Medical Centre, Meibergdreef 9, Amsterdam, AZ, 1105, The Netherlands.
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Abstract
The term "chondropenia" indicates the early stage of degenerative cartilage disease, and it has been identified by carefully monitoring early-stage osteoarthritis (OA). Not only is it the loss of articular cartilage volume, but it is also a rearrangement of biomechanical, ultrastructural, biochemical and molecular properties typical of healthy cartilage tissue. Diagnosing OA at an early stage or an advanced stage is valuable in terms of clinical and therapeutic outcome. In fact degenerative phenomena are supported by a complex biochemical cascade which unbalances the extracellular matrix homeostasis, closely regulated by chondrocytes. In the first stage an intense inflammatory reaction is triggered: pro-catabolic cytokines such as IL-1β and TNF-α triggering matrix metalloproteases and aggrecanase (ADAMT-4 and 5), responsible for the early loss of ultrastructural components, such as type II collagen and aggrecan. In addition nitric oxide and reactive oxygen species modulate the physiopathology of the condral matrix inducing apoptosis of chondrocytes through a mitochondria-dependent pathway. In addition, "Lonely Death": chondrocytes, are confined within a dense, avascular extracellular matrix capsule, and can trigger a genetically induced apoptosis and necrosis. The degenerative process starts from a central point and then spreads in a centrifugal manner in depth and in adjacent areas, eventually covering the whole joint; chondropenia represents a journey from the first clinically detectable time-point until it can be characterized as frank osteoarthritis. Currently, there are no instruments sensitive enough which allow a timely diagnosis of chondropenia. Innovative magnetic resonance imaging techniques, such as T2 mapping, can be effective and a sensitive diagnostic instrument for quantifying cartilage volume and proteoglycan content. However, avant-garde biophysical techniques, such as mechanical indenters, ultrasound and biochemical markers (uCTX-II), are rational and scientific tools applicable to the clinical and therapeutic management of early degenerative cartilage disease. The objective of this review on chondropenia is to present a state of the art and innovative concepts.
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Niebler S, Schubert T, Hunziker EB, Bosserhoff AK. Activating enhancer binding protein 2 epsilon (AP-2ε)-deficient mice exhibit increased matrix metalloproteinase 13 expression and progressive osteoarthritis development. Arthritis Res Ther 2015; 17:119. [PMID: 25964075 PMCID: PMC4453098 DOI: 10.1186/s13075-015-0648-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 05/05/2015] [Indexed: 01/15/2023] Open
Abstract
Introduction The transcription factor activating enhancer binding protein 2 epsilon (AP-2ε) was recently shown to be expressed during chondrogenesis as well as in articular chondrocytes of humans and mice. Furthermore, expression of AP-2ε was found to be upregulated in affected cartilage of patients with osteoarthritis (OA). Despite these findings, adult mice deficient for AP-2ε (Tfap2e−/−) do not exhibit an obviously abnormal cartilaginous phenotype. We therefore analyzed embryogenesis of Tfap2e−/− mice to elucidate potential transient abnormalities that provide information on the influence of AP-2ε on skeletal development. In a second part, we aimed to define potential influences of AP-2ε on articular cartilage function and gene expression, as well as on OA progression, in adult mice. Methods Murine embryonic development was accessed via in situ hybridization, measurement of skeletal parameters and micromass differentiation of mesenchymal cells. To reveal discrepancies in articular cartilage of adult wild-type (WT) and Tfap2e−/− mice, light and electron microscopy, in vitro culture of cartilage explants, and quantification of gene expression via real-time PCR were performed. OA was induced via surgical destabilization of the medial meniscus in both genotypes, and disease progression was monitored on histological and molecular levels. Results Only minor differences between WT and embryos deficient for AP-2ε were observed, suggesting that redundancy mechanisms effectively compensate for the loss of AP-2ε during skeletal development. Surprisingly, though, we found matrix metalloproteinase 13 (Mmp13), a major mediator of cartilage destruction, to be significantly upregulated in articular cartilage of adult Tfap2e−/− mice. This finding was further confirmed by increased Mmp13 activity and extracellular matrix degradation in Tfap2e−/− cartilage explants. OA progression was significantly enhanced in the Tfap2e−/− mice, which provided evidence for in vivo relevance. This finding is most likely attributable to the increased basal Mmp13 expression level in Tfap2e−/− articular chondrocytes that results in a significantly higher total Mmp13 expression rate during OA as compared with the WT. Conclusions We reveal a novel role of AP-2ε in the regulation of gene expression in articular chondrocytes, as well as in OA development, through modulation of Mmp13 expression and activity.
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Affiliation(s)
- Stephan Niebler
- Institute of Biochemistry (Emil-Fischer-Center), Friedrich Alexander University Erlangen-Nürnberg, Fahrstrasse17, 91054, Erlangen, Germany. .,Institute of Pathology, University Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany.
| | - Thomas Schubert
- Institute of Pathology, Friedrich Alexander University Erlangen-Nürnberg, Krankenhausstrasse 8-10, 91054, Erlangen, Germany.
| | - Ernst B Hunziker
- Department of Orthopedic Surgery, University Hospital of Bern, Murtenstrasse 35, 3010, Bern, Switzerland.
| | - Anja K Bosserhoff
- Institute of Biochemistry (Emil-Fischer-Center), Friedrich Alexander University Erlangen-Nürnberg, Fahrstrasse17, 91054, Erlangen, Germany.
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Correro-Shahgaldian MR, Ghayor C, Spencer ND, Weber FE, Gallo LM. A Model System of the Dynamic Loading Occurring in Synovial Joints: The Biological Effect of Plowing on Pristine Cartilage. Cells Tissues Organs 2015; 199:364-72. [DOI: 10.1159/000375294] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2015] [Indexed: 11/19/2022] Open
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Garvican ER, Dudhia J, Alves AL, Clements LE, Plessis FD, Smith RKW. Mesenchymal stem cells modulate release of matrix proteins from tendon surfaces in vitro: a potential beneficial therapeutic effect. Regen Med 2015; 9:295-308. [PMID: 24935042 DOI: 10.2217/rme.14.7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
AIM Injury of tendons contained within a synovial environment, such as joint, bursa or tendon sheath, frequently fails to heal and releases matrix proteins into the synovial fluid, driving inflammation. This study investigated the effectiveness of cells to seal tendon surfaces and provoke matrix synthesis as a possible effective injectable therapy. MATERIALS & METHODS Equine flexor tendon explants were cultured overnight in suspensions of bone marrow and synovium-derived mesenchymal stems cells and, as controls, two sources of fibroblasts, derived from tendon and skin, which adhered to the explants. Release of the most abundant tendon extracellular matrix proteins into the media was assayed, along with specific matrix proteins synthesis by real-time PCR. RESULTS Release of extracellular matrix proteins was influenced by the coating cell type. Fibroblasts from skin and tendon appeared less capable of preventing the release of matrix proteins than mesenchymal stems cells. CONCLUSION The source of cell is an important consideration for cell therapy.
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Affiliation(s)
- Elaine R Garvican
- The Royal Veterinary College, Department of Clinical Sciences & Services, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, UK
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Matsuzaki T, Matsushita T, Tabata Y, Saito T, Matsumoto T, Nagai K, Kuroda R, Kurosaka M. Intra-articular administration of gelatin hydrogels incorporating rapamycin–micelles reduces the development of experimental osteoarthritis in a murine model. Biomaterials 2014; 35:9904-9911. [DOI: 10.1016/j.biomaterials.2014.08.041] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 08/05/2014] [Indexed: 12/19/2022]
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