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Okamoto M, Takahashi Y, Komichi S, Ali M, Watanabe M, Hayashi M. Effect of tissue inhibitor of metalloprotease 1 on human pulp cells in vitro and rat pulp tissue in vivo. Int Endod J 2019; 52:1051-1062. [PMID: 30761555 DOI: 10.1111/iej.13099] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Accepted: 02/12/2019] [Indexed: 12/14/2022]
Abstract
AIM To evaluate the dentinogenetic effects of tissue inhibitor of metalloprotease (TIMP1) on human pulp cells in vitro and rat pulp tissue in vivo. METHODOLOGY The effect of TIMP1 on pulp cell functions related to hard tissue formation as part of the wound healing process (i.e. biocompatibility, proliferation, differentiation and mineralized nodule formation) was evaluated in vitro and using a direct pulp capping experimental animal model in vivo. The effects of different-sized cavity preparations on hard tissue formation induced by ProRoot MTA at 2 weeks were evaluated using micro-computed tomography (micro-CT). Tertiary dentine formation quality and quantity after pulp capping using TIMP1, ProRoot MTA and phosphate-buffered saline (PBS) was also evaluated after 4 weeks using micro-CT in term of dentine volume (DV), dentine mineral density (DVD) and histological analysis. The data were evaluated by Student's t-test, one-way ANOVA with Tukey's post hoc test, the Kruskal-Wallis test or the Steel-Dwass test. P values < 0.05 were considered statistically significant. RESULTS TIMP1 significantly stimulated dental pulp stem cell proliferation, differentiation, and mineralization and was more biocompatible compared with the PBS control (P < 0.05). In the pulp capping model, the amount of tertiary dentine that formed was directly proportional to the size of the pulp exposure; greater amounts of tertiary dentine were observed in pulps with larger exposures after 2 weeks. 4-week samples of TIMP1 and ProRoot MTA had similar characteristics, but both sample significantly induced tertiary dentine formation beneath the cavity compared with PBS (P < 0.05) under standardized cavity preparations. CONCLUSIONS TIMP1 has an important role in pulpal wound healing, which makes it a potential biological pulp capping material and candidate molecule for regenerative endodontic therapy.
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Affiliation(s)
- M Okamoto
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Y Takahashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Komichi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Ali
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Watanabe
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Hayashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
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Augsburger D, Nelson PJ, Kalinski T, Udelnow A, Knösel T, Hofstetter M, Qin JW, Wang Y, Gupta AS, Bonifatius S, Li M, Bruns CJ, Zhao Y. Current diagnostics and treatment of fibrosarcoma -perspectives for future therapeutic targets and strategies. Oncotarget 2017; 8:104638-104653. [PMID: 29262667 PMCID: PMC5732833 DOI: 10.18632/oncotarget.20136] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 07/29/2017] [Indexed: 12/18/2022] Open
Abstract
Adult-type fibrosarcoma is a rare and highly aggressive subtype of soft tissue sarcomas. Due to the existence of other spindle-cell shaped sarcomas, its diagnosis is always one of exclusion. The likelihood of misdiagnoses between similar tumour entities is high, and often leads to inappropriate tumour treatment. We summarize here the main features of fibrosarcoma. When fibrosarcoma is appropriately diagnosed, the patient`s overall prognosis is generally quite poor. Fibrosarcoma is characterized by its low sensitivity towards radio- and chemotherapy as well as by its high rate of tumour recurrences. Thus it is important to identify new methods to improve treatment of this tumour entity. We discuss some promising new directions in fibrosarcoma research, specifically focusing on more effective targeting of the tumour microenvironment. Communication between tumour cells and their surrounding stromal tissue play a crucial role in cancer progression, invasion, metastasis and chemosensitivity. The therapeutic potential of targeting the tumour microenvironment is addressed.
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Affiliation(s)
- Daniela Augsburger
- Department of General, Visceral und Vascular Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Peter J. Nelson
- Clinical Biochemistry Group, Medizinische Klinik und Poliklinik IV, University of Munich, Munich, Germany
| | - Thomas Kalinski
- Department of Pathology, Otto-von-Guericke University, Magdeburg, Germany
| | - Andrej Udelnow
- Department of General, Visceral und Vascular Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Thomas Knösel
- Institute of Pathology, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Monika Hofstetter
- Clinical Biochemistry Group, Medizinische Klinik und Poliklinik IV, University of Munich, Munich, Germany
| | - Ji Wei Qin
- Department of General, Visceral und Vascular Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Yan Wang
- Department of General, Visceral und Vascular Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Arvid Sen Gupta
- Department of General, Visceral und Vascular Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Susanne Bonifatius
- Department of General, Visceral und Vascular Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Minglun Li
- Department of Radiation Oncology, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Christiane J. Bruns
- Department of General, Visceral und Vascular Surgery, Otto-von-Guericke University, Magdeburg, Germany
- Department of General, Visceral and Cancer Surgery, University Hospital of Cologne, Cologne, Germany
- Present address: Department of General, Visceral and Cancer Surgery, University Hospital of Cologne, Cologne, Germany
| | - Yue Zhao
- Department of General, Visceral und Vascular Surgery, Otto-von-Guericke University, Magdeburg, Germany
- Department of General, Visceral and Cancer Surgery, University Hospital of Cologne, Cologne, Germany
- Present address: Department of General, Visceral and Cancer Surgery, University Hospital of Cologne, Cologne, Germany
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Heider S, Dangerfield JA, Metzner C. Biomedical applications of glycosylphosphatidylinositol-anchored proteins. J Lipid Res 2016; 57:1778-1788. [PMID: 27542385 PMCID: PMC5036375 DOI: 10.1194/jlr.r070201] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Indexed: 01/13/2023] Open
Abstract
Glycosylphosphatidylinositol (GPI)-anchored proteins (GPI-APs) use a unique posttranslational modification to link proteins to lipid bilayer membranes. The anchoring structure consists of both a lipid and carbohydrate portion and is highly conserved in eukaryotic organisms regarding its basic characteristics, yet highly variable in its molecular details. The strong membrane targeting property has made the anchors an interesting tool for biotechnological modification of lipid membrane-covered entities from cells through extracellular vesicles to enveloped virus particles. In this review, we will take a closer look at the mechanisms and fields of application for GPI-APs in lipid bilayer membrane engineering and discuss their advantages and disadvantages for biomedicine.
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Affiliation(s)
- Susanne Heider
- Institute of Virology, University of Veterinary Medicine, 1210 Vienna, Austria
| | | | - Christoph Metzner
- Institute of Virology, University of Veterinary Medicine, 1210 Vienna, Austria.
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Lee DE, Trowbridge RM, Ayoub NT, Agrawal DK. High-mobility Group Box Protein-1, Matrix Metalloproteinases, and Vitamin D in Keloids and Hypertrophic Scars. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2015; 3:e425. [PMID: 26180726 PMCID: PMC4494495 DOI: 10.1097/gox.0000000000000391] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 04/23/2015] [Indexed: 01/16/2023]
Abstract
Keloids and hypertrophic scars represent excessive wound healing involving high production of collagen by skin fibroblasts. This review focuses on the role of high-mobility group box protein-1 (HMGB-1), matrix metalloproteinases (MMPs), and vitamin D in these conditions. Although the role of HMGB-1 in keloids and hypertrophic scars is unclear, the effect of HMGB-1 on fibroblasts suggests a profibrotic role and a potential contribution to excessive scarring. MMPs contribute extensively to wound healing and characteristically degrade the extracellular matrix. MMP-1 is decreased in keloids and hypertrophic scars. However, other MMPs, including MMP-2, have been found to be increased and are thought to possibly contribute to keloid expansion through peripheral extracellular matrix catabolism. Many novel therapeutic approaches to keloids and hypertrophic scars target MMPs and aim to increase their levels and catabolic activity. The higher prevalence of keloids in darker skin types may partially be due to a tendency for lower vitamin D levels. The physiologically active form of vitamin D, 1,25(OH)2D3, inhibits the proliferation of keloid fibroblasts, and correlations between vitamin D receptor polymorphisms, such as the TaqI CC genotype, and keloid formation have been reported. Additionally, vitamin D may exert an antifibrotic effect partially mediated by MMPs. Here, we critically discuss whether keloid and hypertrophic scar formation could be predicted based on vitamin D status and vitamin D receptor polymorphisms. Specifically, the findings identified HMGB-1, MMPs, and vitamin D as potential avenues for further clinical investigation and potentially novel therapeutic approaches to prevent the development of keloids and hypertrophic scars.
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Affiliation(s)
- Dylan E. Lee
- From the Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, Neb.; Brigham and Women’s Hospital, Boston, Mass.; and Westfield Plastic Surgery Center, Omaha, Neb
| | - Ryan M. Trowbridge
- From the Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, Neb.; Brigham and Women’s Hospital, Boston, Mass.; and Westfield Plastic Surgery Center, Omaha, Neb
| | - Nagi T. Ayoub
- From the Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, Neb.; Brigham and Women’s Hospital, Boston, Mass.; and Westfield Plastic Surgery Center, Omaha, Neb
| | - Devendra K. Agrawal
- From the Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, Neb.; Brigham and Women’s Hospital, Boston, Mass.; and Westfield Plastic Surgery Center, Omaha, Neb
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