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Ji H, Wang Y, Liu H, Liu Y, Zhang X, Xu J, Li Z, Luo E. Programmed core-shell electrospun nanofibers to sequentially regulate osteogenesis-osteoclastogenesis balance for promoting immediate implant osseointegration. Acta Biomater 2021; 135:274-288. [PMID: 34492371 DOI: 10.1016/j.actbio.2021.08.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/06/2021] [Accepted: 08/29/2021] [Indexed: 02/05/2023]
Abstract
The biology of immediate post-extraction implant osseointegration is mediated by a coordinated cascade of osteoblast-osteoclast interactions. The aim of this study was to develop a dual-delivery system that allowed sequential release of substance P (SP) to promote bone regeneration and alendronate (ALN) to reduce bone resorption, which will improve the implant osseointegration. We used coaxial electrospinning to fabricate the core-shell poly lactic-co-glycolic acid (PLGA)/gelatin nanofibers, which consists of SP in the shell and ALN in the core. This programmed delivery system was shown to release SP and ALN sequentially to match the spatio-temporal specificity of bone healing. The migration assay demonstrated that the SP-ALN dual-delivery system increased bone marrow mesenchymal stem cells (BMSCs) transmigration. Besides, the expression of osteogenic/osteoclastic markers, Alizarin Red staining, tartrate-resistant acid phosphatase (TRAP) staining, F-actin staining and bone resorption experiment showed that the dual-delivery system can render a microenvironment favorable for osteogenic differentiation and adverse to osteoclastogenesis. Using a rat immediate implant model, we validated the promoted osteogenic property and osseointegration around the implants of SP-ALN dual-delivery system by micro-computed tomography (micro-CT) and histological analysis. These findings suggest that the dual-delivery system with time-controlled release of SP and ALN by core-shell nanofibers provides a promising strategy to facilitate immediate implant osseointegration through favorable osteogenesis. STATEMENT OF SIGNIFICANCE: Immediate implant placement is potentially challenged by the difficulties in achieving primary implant stability and early osteogenesis. Initial period of osteointegration is regulated by osteoblastic/osteoclastic cells resulting in a coordinated healing process. To have an efficient bone regeneration, the coaxial electrospinning was used to fabricate a programmed dual-delivery system. The SP released rapidly and favored for BMSCs migration and osteogenic differentiation, while the sustained release of ALN can reduce the bone resorption. The rat immediate implant model indicated that the SP-ALN dual-delivery system could present the promoted peri‑implant osteogenic property and osseointegration through modulating the osteogenesis-osteoclastogenesis balance. This work highlights the sequential dual delivery of SP and ALN has a promising potential of achieving enhanced osseointegration for immediate implant placement.
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Affiliation(s)
- Huanzhong Ji
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, No. 14 Section 3, Renmin South Road, Chengdu, Sichuan 610041, PR China
| | - Yiyao Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, No. 14 Section 3, Renmin South Road, Chengdu, Sichuan 610041, PR China; Department of Oral and Maxillofacial Surgery, Sichuan Hospital of Stomatology, Chengdu 610031, PR China
| | - Hanghang Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, No. 14 Section 3, Renmin South Road, Chengdu, Sichuan 610041, PR China
| | - Yao Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, No. 14 Section 3, Renmin South Road, Chengdu, Sichuan 610041, PR China
| | - Xiaohui Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, No. 14 Section 3, Renmin South Road, Chengdu, Sichuan 610041, PR China
| | - Jiazhuang Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China
| | - Zhongming Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China
| | - En Luo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, No. 14 Section 3, Renmin South Road, Chengdu, Sichuan 610041, PR China.
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Li R, Meng Q, Huang J, Wang S, Sun J. MMP-14 regulates innate immune responses to Eriocheir sinensis via tissue degradation. FISH & SHELLFISH IMMUNOLOGY 2020; 99:301-309. [PMID: 32061873 DOI: 10.1016/j.fsi.2020.02.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/08/2020] [Accepted: 02/12/2020] [Indexed: 06/10/2023]
Abstract
Matrix metalloproteinases (MMPs) are a cluster of enzymes that degrade the extracellular matrix (ECM) and some intracellular proteins; as such, they play an important role in tissue regeneration, infant growth, animal reproduction, and immunity. Most research into MMPs focuses mainly on their effects on the mammalian immune system. However, it is not clear how MMPs affect immune processes in crustaceans. Here, we cloned the open reading frame (ORF) of Eriocheir sinensis (Chinese mitten crab) MMP-14 (EsMMP-14) to explore the role of MMPs in crustacean innate immune responses. RT-PCR results showed that stimulation of crab with LPS and poly I:C upregulated expression of EsMMP-14 markedly. Besides, following the stimulation of 20-Hydroxyecdysone, the expression level of EsMMP-14 increased robustly, suggesting that EsMMP-14 involved in the molt process of E. sinensis. Hematoxylin and eosin staining of hepatopancreas and intestine revealed that knocking down EsMMP-14 maintained morphology following infection by Bacillus thuringiensis. Moreover, downregulated expression of EsMMP-14 increased the survival rate of infected E. sinensis. These results show that EsMMP-14 plays a role in innate immune responses of E. sinensis and fills a gap in our knowledge about the function of MMPs in crustaceans.
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Affiliation(s)
- Ran Li
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Science, Tianjin Normal University, Tianjin, 300387, People's Republic of China
| | - Qinghao Meng
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Science, Tianjin Normal University, Tianjin, 300387, People's Republic of China
| | - Jinwei Huang
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Science, Tianjin Normal University, Tianjin, 300387, People's Republic of China
| | - Shen Wang
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Science, Tianjin Normal University, Tianjin, 300387, People's Republic of China
| | - Jinsheng Sun
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Science, Tianjin Normal University, Tianjin, 300387, People's Republic of China.
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Vajrabhaya LO, Korsuwannawong S, Surarit R. Cytotoxic and the proliferative effect of cuttlefish bone on MC3T3-E1 osteoblast cell line. Eur J Dent 2019; 11:503-507. [PMID: 29279678 PMCID: PMC5727737 DOI: 10.4103/ejd.ejd_159_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Objective: To evaluate the cytotoxic and the proliferative effect of cuttlefish bone on MC3T3-E1 osteoblast cell line. Materials and Methods: MC3T3-E1 cells were treated with 0.5, 1, 5, 25, 50, 100, or 200 μg/ml cuttlefish bone powder (CBP). Cytotoxicity was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. This assay was also used to determine cell proliferation over 16 days of treatment with 0.5, 25, or 100 μg/ml CBP. Results: CBP was not cytotoxic to MC3T3-E1 cells at any concentration. The percentage of cell viability in the 0.5–200 μg/ml CBP groups dose dependently decreased from 107.52 ± 11.03 to 92.48 ± 5.60%; however, the differences between the groups or the negative control group were not significant. At 16 days, 0.5, 25, and 100 μg/ml CBP groups showed 123.19 ± 10.07%, 126.02 ± 15.69%, and 133.33 ± 11.74% proliferation, respectively, that were significantly higher than that of the control group. Conclusion: These results indicate that CBP promotes osteoblast proliferation and may be a potential material to increase the number of osteoblasts in a bone defect in the oral cavity.
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Affiliation(s)
- La-Ongthong Vajrabhaya
- Endodontic Section, Faculty of Dental Medicine, Rangsit University, Pathumtanee 12000, Thailand
| | | | - Rudee Surarit
- Department of Oral Biology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand
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Matrix metalloproteinases and inhibitors in dentistry. Clin Oral Investig 2019; 23:2823-2835. [PMID: 31093743 DOI: 10.1007/s00784-019-02915-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 04/24/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Matrix metalloproteinase (MMP) expression has been associated with tissue development, invasive cancer cell behavior, and inflammation. The associations of increased expression of MMPs with diseases have led to intensive research activities to develop MMP inhibitors. Here, the questions are addressed which associations between increased levels of any MMP with dental diseases may be cause or consequence, whether MMP levels may be of diagnostic value and whether and which MMP inhibitors need further investigations for use in dental diseases. METHODS To study the role of MMPs and to discriminate between cause or consequence, the literature about measurements of MMPs and about the use of inhibitory drugs and genetic knockout animal models in dentistry was compared. RESULTS The only FDA-approved treatment with MMP inhibitors is tetracyclines for periodontitis, whereas a diagnostic test for activated MMP-8 in oral fluids is valued in practical periodontology. The MMP literature in dentistry is artificially skewed to the gelatinases MMP-2 and MMP-9 and to enamelysin, alias MMP-20. The basis for this observation is, respectively, the widely used and sensitive technique of gelatin zymography and enamel proteins as substrates of MMP-20. Studies on additional MMPs are gaining interest in dentistry and MMP inhibitors may provide new applications. In addition, drugs with proven effects for the treatment of dental diseases may be found to act through MMP inhibition. CONCLUSION AND RELEVANCE In conclusion, research on MMPs and inhibitors may provide practical applications beyond diagnosis and treatment of periodontitis and will be, directly or indirectly, beneficial for patients with dental or periodontal diseases.
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Michalski MN, Zweifler LE, Sinder BP, Koh AJ, Yamashita J, Roca H, McCauley LK. Clodronate-Loaded Liposome Treatment Has Site-Specific Skeletal Effects. J Dent Res 2019; 98:459-467. [PMID: 30626255 DOI: 10.1177/0022034518821685] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Ineffective oral wound healing is detrimental to patients' oral health-related quality of life. Delineating the cellular mechanisms involved in optimal healing will elicit better approaches to treating patients with compromised healing. Osteal macrophages have recently emerged as important positive regulators of bone turnover. The contributions of macrophages to long bone healing have been studied, but their role in oral osseous wound healing following tooth extraction is less clear. Clodronate-loaded liposomes were used as a tool to deplete macrophages in C57BL/6J mice and assess oral osseous bone fill after extraction. In addition to macrophage ablation, osteoclast ablation occurred. Interestingly, depletion of macrophages and osteoclasts via clodronate treatment had differential effects based on skeletal location. In the nonwounded tibiae, clodronate treatment significantly increased CD68+ cells and decreased F4/80+ cells in the marrow, which correlated with increased trabecular bone volume fraction after 7 and 14 d. Serum formation and resorptive markers P1NP and TRAcP 5b were decreased as were tibial TRAP+ osteoclasts. In healing extraction sockets, clodronate treatment increased extraction socket trabecular bone thickness at 14 d, which correlated with decreased TRAP+ osteoclasts and F4/80+ macrophages. Conversely, nonwounded maxillary interseptal bone was unaffected by clodronate treatment. Furthermore, the increase in extraction socket bone fill with clodronate was less than the large increase in trabecular bone observed in a nonwounded long bone. These data suggest a temporal and spatial specificity in the roles of macrophages and osteoclasts in normal turnover and healing.
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Affiliation(s)
- M N Michalski
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - L E Zweifler
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - B P Sinder
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - A J Koh
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - J Yamashita
- 2 Department of Oral and Maxillofacial Surgery, Fukuoka Dental College, Fukuoka, Japan
| | - H Roca
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - L K McCauley
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.,3 Department of Pathology, Medical School, University of Michigan, Ann Arbor, MI, USA
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Franco C, Patricia HR, Timo S, Claudia B, Marcela H. Matrix Metalloproteinases as Regulators of Periodontal Inflammation. Int J Mol Sci 2017; 18:ijms18020440. [PMID: 28218665 PMCID: PMC5343974 DOI: 10.3390/ijms18020440] [Citation(s) in RCA: 169] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 02/07/2017] [Accepted: 02/08/2017] [Indexed: 12/26/2022] Open
Abstract
Periodontitis are infectious diseases characterized by immune-mediated destruction of periodontal supporting tissues and tooth loss. Matrix metalloproteinases (MMPs) are key proteases involved in destructive periodontal diseases. The study and interest in MMP has been fuelled by emerging evidence demonstrating the broad spectrum of molecules that can be cleaved by them and the myriad of biological processes that they can potentially regulate. The huge complexity of MMP functions within the 'protease web' is crucial for many physiologic and pathologic processes, including immunity, inflammation, bone resorption, and wound healing. Evidence points out that MMPs assemble in activation cascades and besides their classical extracellular matrix substrates, they cleave several signalling molecules-such as cytokines, chemokines, and growth factors, among others-regulating their biological functions and/or bioavailability during periodontal diseases. In this review, we provide an overview of emerging evidence of MMPs as regulators of periodontal inflammation.
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Affiliation(s)
- Cavalla Franco
- Department of Conservative Dentistry, School of Dentistry, Universidad de Chile, Santiago 8380492, Chile.
- Department of Biological Sciences, School of Dentistry of Bauru, University of São Paulo (FOB/USP), Bauru, São Paulo 17012-901, Brazil.
- Center for Craniofacial Research, University of Texas School of Dentistry at Houston, Houston, TX 77054, USA.
| | - Hernández-Ríos Patricia
- Department of Conservative Dentistry, School of Dentistry, Universidad de Chile, Santiago 8380492, Chile.
| | - Sorsa Timo
- Department of Oral and Maxillofacial Diseases, Helsinki University and Helsinki University Central Hospital, Helsinki 00290, Finland.
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge 14183, Sweden.
| | - Biguetti Claudia
- Department of Biological Sciences, School of Dentistry of Bauru, University of São Paulo (FOB/USP), Bauru, São Paulo 17012-901, Brazil.
- Center for Craniofacial Research, University of Texas School of Dentistry at Houston, Houston, TX 77054, USA.
| | - Hernández Marcela
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago 8380492, Chile.
- Dentistry Unit, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago 8910060, Chile.
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Effect of Electromagnetic Wave on Bone Healing in Fixed and Unfixed Conditions. J Craniofac Surg 2016; 27:1606-8. [DOI: 10.1097/scs.0000000000002740] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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8
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Hydroxyapatite-calcium sulfate-hyaluronic acid composite encapsulated with collagenase as bone substitute for alveolar bone regeneration. Biomaterials 2016; 74:99-108. [DOI: 10.1016/j.biomaterials.2015.09.044] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 12/30/2022]
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9
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Kuhn K, Rudolph H, Graf M, Moldan M, Zhou S, Udart M, Böhmler A, Luthardt RG. Interaction of titanium, zirconia and lithium disilicate with peri-implant soft tissue: study protocol for a randomized controlled trial. Trials 2015; 16:467. [PMID: 26470711 PMCID: PMC4608119 DOI: 10.1186/s13063-015-0979-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 09/28/2015] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Against the background of increasing use of dental implants, and thus an increasing prevalence of implant-associated complications, a deeper understanding of the biomolecular mechanisms in the peri-implant tissue is needed. Peri-implant soft tissue is in direct contact with transmucosal dental implant abutments. The aim of this trial is to distinguish the biomolecular and histological interactions of various dental abutment materials with peri-implant soft tissue. METHODS/DESIGN The study is designed as a prospective, randomized, investigator-initiated clinical pilot trial with blinded assessment. We will ultimately include 24 eligible patients who opt for implant treatment to replace a single missing posterior tooth. Three months after implantation (submerged procedure), the study begins with the second-stage surgery. Each of the 24 patients will be given three different transmucosal abutments (zirconia, lithium disilicate, titanium) consecutively. The sequence in which the three materials are used is randomized. Peri-implant crevicular fluid is sampled weekly around the respective abutment for biomolecular analyses. After one month of wearing time, the stamping press from the second-stage surgery is used to gain a narrow gingival ring biopsy around the abutment for immunohistochemical analyses. The next abutment is then inserted. The same procedure is used for all three abutments. After sampling is completed, the patients will receive a definitive crown. The primary outcome measure of the trial is biomolecular detection of specific markers in the peri-implant crevicular fluid: matrix metalloproteinase 8, interleukin- 1β, polymorphonuclear elastase, and myeloid-related protein MRP8/14 (calprotectin). Secondary outcome measures include immunohistochemical analyses and clinical parameters. DISCUSSION The study design will allow us to perform correlation analyses between the clinical indices with biomarkers' expression in the interface of the transmucosal abutments and the peri-implant soft tissue. A deeper understanding of the three abutment materials' interactions with peri-implant soft tissue will help us understand the formation mechanisms of implant-associated complications and then develop prevention strategies. TRIAL REGISTRATION The trial is registered at the German Clinical Trial Register and the International Clinical Trials Registry Platform by the WHO under DRKS00006555 (Registered on 27 October 2014).
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Affiliation(s)
- Katharina Kuhn
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University, Ulm, Germany.
| | - Heike Rudolph
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University, Ulm, Germany.
| | - Michael Graf
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University, Ulm, Germany.
| | - Matthias Moldan
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University, Ulm, Germany.
| | - Shaoxia Zhou
- Department of Clinical Chemistry, Ulm University, Ulm, Germany.
| | - Martin Udart
- Institut für Lasertechnologien in der Medizin und Messtechnik, Ulm University, Ulm, Germany.
| | - Andrea Böhmler
- Institut für Lasertechnologien in der Medizin und Messtechnik, Ulm University, Ulm, Germany.
| | - Ralph G Luthardt
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University, Ulm, Germany.
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Vieira AE, Repeke CE, Ferreira Junior SDB, Colavite PM, Biguetti CC, Oliveira RC, Assis GF, Taga R, Trombone APF, Garlet GP. Intramembranous bone healing process subsequent to tooth extraction in mice: micro-computed tomography, histomorphometric and molecular characterization. PLoS One 2015; 10:e0128021. [PMID: 26023920 PMCID: PMC4449187 DOI: 10.1371/journal.pone.0128021] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 04/21/2015] [Indexed: 01/12/2023] Open
Abstract
Bone tissue has a significant potential for healing, which involves a significant the interplay between bone and immune cells. While fracture healing represents a useful model to investigate endochondral bone healing, intramembranous bone healing models are yet to be developed and characterized. In this study, a micro-computed tomography, histomorphometric and molecular (RealTimePCRarray) characterization of post tooth-extraction alveolar bone healing was performed on C57Bl/6 WT mice. After the initial clot dominance (0h), the development of a provisional immature granulation tissue is evident (7d), characterized by marked cell proliferation, angiogenesis and inflammatory cells infiltration; associated with peaks of growth factors (BMP-2-4-7,TGFβ1,VEGFa), cytokines (TNFα, IL-10), chemokines & receptors (CXCL12, CCL25, CCR5, CXCR4), matrix (Col1a1-2, ITGA4, VTN, MMP1a) and MSCs (CD105, CD106, OCT4, NANOG, CD34, CD146) markers expression. Granulation tissue is sequentially replaced by more mature connective tissue (14d), characterized by inflammatory infiltrate reduction along the increased bone formation, marked expression of matrix remodeling enzymes (MMP-2-9), bone formation/maturation (RUNX2, ALP, DMP1, PHEX, SOST) markers, and chemokines & receptors associated with healing (CCL2, CCL17, CCR2). No evidences of cartilage cells or tissue were observed, strengthening the intramembranous nature of bone healing. Bone microarchitecture analysis supports the evolving healing, with total tissue and bone volumes as trabecular number and thickness showing a progressive increase over time. The extraction socket healing process is considered complete (21d) when the dental socket is filled by trabeculae bone with well-defined medullary canals; it being the expression of mature bone markers prevalent at this period. Our data confirms the intramembranous bone healing nature of the model used, revealing parallels between the gene expression profile and the histomorphometric events and the potential participation of MCSs and immune cells in the healing process, supporting the forthcoming application of the model for the better understanding of the bone healing process.
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Affiliation(s)
- Andreia Espindola Vieira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Carlos Eduardo Repeke
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Priscila Maria Colavite
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Claudia Cristina Biguetti
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Rodrigo Cardoso Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Gerson Francisco Assis
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Rumio Taga
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Gustavo Pompermaier Garlet
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
- * E-mail:
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Becker J, John G, Becker K, Mainusch S, Diedrichs G, Schwarz F. Clinical performance of two-piece zirconia implants in the posterior mandible and maxilla: a prospective cohort study over 2 years. Clin Oral Implants Res 2015; 28:29-35. [DOI: 10.1111/clr.12610] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2015] [Indexed: 12/01/2022]
Affiliation(s)
- Jürgen Becker
- Department of Oral Surgery; Universitätsklinikum Düsseldorf; Düsseldorf Germany
| | - Gordon John
- Department of Oral Surgery; Universitätsklinikum Düsseldorf; Düsseldorf Germany
| | - Kathrin Becker
- Department of Orthodontics; Universitätsklinikum Düsseldorf; Düsseldorf Germany
| | - Saskia Mainusch
- Department of Oral Surgery; Universitätsklinikum Düsseldorf; Düsseldorf Germany
| | - Gabriele Diedrichs
- Department of Prosthodontics; Universitätsklinikum Düsseldorf; Düsseldorf Germany
| | - Frank Schwarz
- Department of Oral Surgery; Universitätsklinikum Düsseldorf; Düsseldorf Germany
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Non-apoptotic functions of caspase-7 during osteogenesis. Cell Death Dis 2014; 5:e1366. [PMID: 25118926 PMCID: PMC4454305 DOI: 10.1038/cddis.2014.330] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 06/12/2014] [Accepted: 06/19/2014] [Indexed: 11/09/2022]
Abstract
Caspase-3 and -7 are generally known for their central role in the execution of apoptosis. However, their function is not limited to apoptosis and under specific conditions activation has been linked to proliferation or differentiation of specialised cell types. In the present study, we followed the localisation of the activated form of caspase-7 during intramembranous (alveolar and mandibular bones) and endochondral (long bones of limbs) ossification in mice. In both bone types, the activated form of caspase-7 was detected from the beginning of ossification during embryonic development and persisted postnatally. The bone status was investigated by microCT in both wild-type and caspase-7-deficient adult mice. Intramembranous bone in mutant mice displayed a statistically significant decrease in volume while the mineral density was not altered. Conversely, endochondral bone showed constant volume but a significant decrease in mineral density in caspase-7 knock-out mice. Cleaved caspase-7 was present in a number of cells that did not show signs of apoptosis. PCR array analysis of the mandibular bone of caspase-7-deficient versus wild-type mice pointed to a significant decrease in mRNA levels for Msx1 and Smad1 in early bone formation. These observations might explain the decrease in the alveolar bone volume of adult knock-out mice. In conclusion, this study is the first to report a non-apoptotic function of caspase-7 in osteogenesis and also demonstrates further specificities in endochondral versus intramembranous ossification.
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13
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Åström P, Pirilä E, Lithovius R, Heikkola H, Korpi JT, Hernández M, Sorsa T, Salo T. Matrix metalloproteinase-8 regulates transforming growth factor-β1 levels in mouse tongue wounds and fibroblasts in vitro. Exp Cell Res 2014; 328:217-227. [PMID: 25036555 DOI: 10.1016/j.yexcr.2014.07.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Revised: 07/04/2014] [Accepted: 07/08/2014] [Indexed: 11/28/2022]
Abstract
Matrix metalloproteinase-8 (MMP-8)-deficient mice (Mmp8-/-) exhibit delayed dermal wound healing, but also partly contradicting results have been reported. Using the Mmp8-/- mice we investigated the role of MMP-8 in acute wound healing of the mobile tongue, and analyzed the function of tongue fibroblasts in vitro. Interestingly, in the early phase the tongue wounds of Mmp8-/- mice healed faster than those of wild type (wt) mice resulting in significant difference in wound widths (P=0.001, 6-24h). The Mmp8-/- wounds showed no change in myeloperoxidase positive myeloid cell count, but the level of transforming growth factor (TGF)-β1 was significantly increased (P=0.007) compared to the wt tongues. Fibroblasts cultured from wt tongues expressed MMP-8 and TGF-β1. However, higher TGF-β1 levels were detected in Mmp8-/- fibroblasts, and MMP-8 treatment decreased phosphorylated Smad-2 levels and α-smooth muscle actin expression in these fibroblasts suggesting reduced TGF-β1 signaling. Consistently, a degradation of recombinant TGF-β1 by MMP-8 decreased its ability to activate the signaling cascade in fibroblasts. Moreover, collagen gels with Mmp8-/- fibroblasts reduced more in size. We conclude that MMP-8 regulates tongue wound contraction rate and TGF-β1 levels. In vitro analyses suggest that MMP-8 may also play a role in regulating TGF-β1 signaling of stromal fibroblasts.
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Affiliation(s)
- Pirjo Åström
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, PO Box 5281, Oulu 90014, Finland; Medical Research Center (MRC), Oulu, Finland.
| | - Emma Pirilä
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, PO Box 5281, Oulu 90014, Finland; Medical Research Center (MRC), Oulu, Finland.
| | - Riitta Lithovius
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, PO Box 5281, Oulu 90014, Finland.
| | - Heidi Heikkola
- Department of Oral and Maxillofacial Diseases, Institute of Dentistry, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland.
| | - Jarkko T Korpi
- Department of Oral and Maxillofacial Surgery, Institute of Dentistry, University of Oulu, Oulu University Hospital, Oulu, Finland.
| | - Marcela Hernández
- Department of Pathology and Laboratory of Periodontal Biology, Faculty of Dentistry, University of Chile, Santiago, Chile.
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Institute of Dentistry, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland; Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden.
| | - Tuula Salo
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, PO Box 5281, Oulu 90014, Finland; Oulu University Hospital, Oulu, Finland, Institute of Dentistry, University of Helsinki, Helsinki, Finland; Graduate Program in Estomatopatologia, Piracicaba Dental School, University of Campinas, Piracicaba-São Paulo, Brazil; Medical Research Center (MRC), Oulu, Finland.
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Propolis Modifies Collagen Types I and III Accumulation in the Matrix of Burnt Tissue. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:423809. [PMID: 23781260 PMCID: PMC3679764 DOI: 10.1155/2013/423809] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 04/29/2013] [Indexed: 02/07/2023]
Abstract
Wound healing represents an interactive process which requires highly organized activity of various cells, synthesizing cytokines, growth factors, and collagen. Collagen types I and III, serving as structural and regulatory molecules, play pivotal roles during wound healing. The aim of this study was to compare the propolis and silver sulfadiazine therapeutic efficacy throughout the quantitative and qualitative assessment of collagen types I and III accumulation in the matrix of burnt tissues. Burn wounds were inflicted on pigs, chosen for the evaluation of wound repair because of many similarities between pig and human skin. Isolated collagen types I and III were estimated by the surface plasmon resonance method with a subsequent collagenous quantification using electrophoretic and densitometric analyses. Propolis burn treatment led to enhanced collagens and its components expression, especially during the initial stage of the study. Less expressed changes were observed after silver sulfadiazine (AgSD) application. AgSD and, with a smaller intensity, propolis stimulated accumulation of collagenous degradation products. The assessed propolis therapeutic efficacy, throughout quantitatively and qualitatively analyses of collagen types I and III expression and degradation in wounds matrix, may indicate that apitherapeutic agent can generate favorable biochemical environment supporting reepithelization.
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Pradhan-Palikhe P, Pussinen PJ, Vikatmaa P, Palikhe A, Kivimäki AS, Lepäntalo M, Salo T, Sorsa T. Single nucleotide polymorphism -799C/T in matrix metalloproteinase-8 promoter region in arterial disease. Innate Immun 2011; 18:511-7. [PMID: 21994255 DOI: 10.1177/1753425911423852] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Arterial disease is associated with elevated serum matrix metalloproteinase (MMP)-8 concentration. We studied the role of two promoter region single nucleotide polymorphisms (SNPs) of MMP-8 gene in the arterial disease. The population comprised patients with arterial disease (n = 124) and healthy blood donors (n = 100) as a reference group for MMP-8 SNPs (-799C/T and -381A/G) genotypes and serum concentrations. Genotype frequencies for MMP-8 -799C/T SNP in arterial disease were C/C (43.5%), C/T (32.3%) and T/T (24.2%), and in the reference group they were C/C (50.0%), C/T (40.0%) and T/T (10.0%; P = 0.012). The -799C allele frequency was lower in the patients (59.7%) than in the reference group (70.0%; P = 0.023). The -799C allele showed protective effects against the arterial disease with an odds ratio [95% confidence interval (CI)] of 0.372 (0.141-0.980, P = 0.045) after adjustment for age, gender, and serum MMP-8 and TIMP-1 concentrations. Only in the reference group and whole study population (n = 224), the -799TT genotype significantly associated with an increase in serum MMP-8 concentrations (P = 0.047, 0.025). The -799C allele appeared protective against the arterial disease. The genotype may have an effect on systemic MMP-8 levels which could not, however, be seen in the arterial disease patients probably as a result of the strong inflammation involved in the disease pathogenesis.
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Affiliation(s)
- Pratikshya Pradhan-Palikhe
- Institute of Dentistry, University of Helsinki, and Department of Oral and Maxillofacial Diseases, Helsinki University Central Hospital, Helsinki, Finland.
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Minematsu T, Huang L, Ibuki A, Nakagami G, Akase T, Sugama J, Nagase T, Yoshimura K, Sanada H. Altered expression of matrix metalloproteinases and their tissue inhibitors in matured rat adipocytes in vitro. Biol Res Nurs 2011; 14:242-9. [PMID: 21669944 DOI: 10.1177/1099800411410870] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Obesity is recognized as a risk factor for delayed cutaneous wound healing. The authors hypothesized that the secretion of matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) from subcutaneous adipose tissue correlates with disorder of the healing process in obese subjects. Findings from previous studies on the expression of MMPs and TIMPs in obese adipose tissue are inconsistent. Since these conflicting results could be due to the effect of several intrinsic factors, the authors conducted a simple in vitro experiment to clarify the change in profile of MMPs and TIMPs in excessively matured adipocytes. The authors cultured the induced adipocytes under conditions of high or low glucose and with or without insulin supplementation. Oil red O staining and its dye extraction assay revealed excessive lipid accumulation in high glucose and insulin-supplemented adipocytes. Additionally, there was altered expression of adipokines, similar to the change in adipose tissue in obese subjects. Under these conditions, the expression/activity of MMP8 was promoted and the expression of MMP3 and TIMP3 was inhibited. Further studies to determine the effect of other obesity-related factors, such as insulin resistance, on MMPs and TIMPs are required.
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Affiliation(s)
- Takeo Minematsu
- Department of Advanced Skin Care, The University of Tokyo, Tokyo, Japan
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Dejonckheere E, Vandenbroucke RE, Libert C. Matrix metalloproteinase8 has a central role in inflammatory disorders and cancer progression. Cytokine Growth Factor Rev 2011; 22:73-81. [PMID: 21388856 DOI: 10.1016/j.cytogfr.2011.02.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The predominant role of matrix metalloproteinase 8 in extracellular matrix turnover, modulation of inflammatory responses and other physiological processes is well documented. Several recent studies highlight the involvement of MMP8 in a wide range of pathologies. This review will shed light on the putative role of MMP8 as a drug target or disease marker in some inflammatory disorders and in cancer progression.
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Hernández M, Gamonal J, Salo T, Tervahartiala T, Hukkanen M, Tjäderhane L, Sorsa T. Reduced expression of lipopolysaccharide-induced CXC chemokine in Porphyromonas gingivalis-induced experimental periodontitis in matrix metalloproteinase-8 null mice. J Periodontal Res 2011; 46:58-66. [DOI: 10.1111/j.1600-0765.2010.01310.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Korpi JT, Hagström J, Lehtonen N, Parkkinen J, Sorsa T, Salo T, Laitinen M. Expression of matrix metalloproteinases-2, -8, -13, -26, and tissue inhibitors of metalloproteinase-1 in human osteosarcoma. Surg Oncol 2010; 20:e18-22. [PMID: 20880700 DOI: 10.1016/j.suronc.2010.08.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Accepted: 08/24/2010] [Indexed: 10/19/2022]
Abstract
Osteosarcoma (OS) is among most common malignant tumour of bone. Matrix metalloproteinases (MMPs) are predominantly associated with poor prognosis of several cancers, although some of them, like MMP-8, seem to have a protective role in some cancers. We analyzed the distribution patterns of MMP-2, -8, -13, -26, and tissue inhibitor of matrix metalloproteinase (TIMP)-1 in 25 OS patients. MMP-2, -8, -13, -26 and TIMP-1 were mostly detected in sarcoma cells. Response to chemotherapy affected the amount of MMP-2, -8, and -13 in resection sections when compared to biopsies: patients with excellent or good response had less positivity to MMP-2 in chemotherapy samples than those with moderate or poor response. We conclude that MMP-2, -8, -13, -26, and TIMP-1 are expressed in OS tissue, and all, except protective MMP-8, were also found in metastases indicating that MMPs and TIMP-1 can participate in the OS progression.
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Affiliation(s)
- Jarkko T Korpi
- Department of Oral and Maxillofacial Surgery, University Hospital of Oulu, Finland.
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