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Zheng H, Bian M, Zhou Z, Shi Y, Shen M, Wang M, Jiang W, Shao C, Tang R, Pan H, He J, Fu B, Wu Z. Small Charged Molecule-Mediated Fibrillar Mineralization: Implications for Ectopic Calcification. ACS NANO 2024; 18:23537-23552. [PMID: 39133543 DOI: 10.1021/acsnano.4c07378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Numerous small biomolecules exist in the human body and play roles in various biological and pathological processes. Small molecules are believed not to induce intrafibrillar mineralization alone. They are required to work in synergy with noncollagenous proteins (NCPs) and their analogs, e.g. polyelectrolytes, for inducing intrafibrillar mineralization, as the polymer-induced liquid-like precursor (PILP) process has been well-documented. In this study, we demonstrate that small charged molecules alone, such as sodium tripolyphosphate, sodium citrate, and (3-aminopropyl) triethoxysilane, could directly mediate fibrillar mineralization. We propose that small charged molecules might be immobilized in collagen fibrils to form the polyelectrolyte-like collagen complex (PLCC) via hydrogen bonds. The PLCC could attract CaP precursors along with calcium and phosphate ions for inducing mineralization without any polyelectrolyte additives. The small charged molecule-mediated mineralization process was evidenced by Cryo-TEM, AFM, SEM, FTIR, ICP-OES, etc., as the PLCC exhibited both characteristic features of collagen fibrils and polyelectrolyte with increased charges, hydrophilicity, and density. This might hint at one mechanism of pathological biomineralization, especially for understanding the ectopic calcification process.
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Affiliation(s)
- Haiyan Zheng
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
| | - Mengyao Bian
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
| | - Zihuai Zhou
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
| | - Ying Shi
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
| | - Minjian Shen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
| | - Manting Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
| | - Wenxiang Jiang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
| | - Changyu Shao
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
| | - Ruikang Tang
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Haihua Pan
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Jianxiang He
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
| | - Baiping Fu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
| | - Zhifang Wu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang 310000, China
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Fan M, Zhou Z, Zhu W, Li M, Tu Y, Yu Z, Li J, Zhang M, Liang K. Reinforced dentin remineralization via a novel dual-affinity peptide. Dent Mater 2024; 40:254-266. [PMID: 37989605 DOI: 10.1016/j.dental.2023.11.009] [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: 07/25/2023] [Revised: 10/30/2023] [Accepted: 11/04/2023] [Indexed: 11/23/2023]
Abstract
OBJECTIVES In light of the constantly flowing saliva, anti-caries remineralization agents are inclined to be taken away. Owing to their limited residence time, the remineralization effect is not as desirable as expected. Hence, our study aimed to synthesize a novel peptide (DGP) with high affinity to both collagen fibrils and hydroxyapatite, and investigated its dentin remineralization efficacy in vitro and anti-caries capability in vivo. METHODS DGP was synthesized through Fmoc solid-phase reaction. The binding ability and interaction mechanism of DGP to demineralized dentin were investigated. Dentin specimens were demineralized, then treated with DGP and deionized water respectively. The specimens were incubated in artificial saliva and in-vitro remineralization effectiveness was analyzed after 14 days. The rat caries model was established to further scrutinize the in-vivo efficacy of caries prevention. RESULTS DGP possesses an enhanced adhesion force of 12.29 ± 1.12 nN to demineralized dentin. The favorable adsorption capacity is ascribed to the stable hydrogen bonds between S2P-101 and ASP-100 of DGP and GLY33 and PRO-16 of collagen fibers. Abundant mineral deposits and remarkable tubule occlusion were observed in the DGP group. DGP-treated dentin obtained notable microhardness recovery and higher mineral content after a 14-day remineralization regimen. DGP also demonstrated potent caries prevention in vivo, with substantially fewer carious lesions and significantly lower Keyes scoring. SIGNIFICANCE DGP proves to possess a high affinity to demineralized dentin regardless of saliva flowing, thus enhancing remineralization potency significantly in vitro and in vivo, potential for dental caries prevention and combatting initial dentin caries clinically.
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Affiliation(s)
- Menglin Fan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zilin Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Wanchun Zhu
- Chongqing Medical University Stomatology College, Chongqing 401147, China
| | - Meng Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yuanyuan Tu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zhaohan Yu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jiyao Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Min Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Kunneng Liang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
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Mehdi SH, Gentry AC, Lee JY, Chung CP, Yoon D. The Synthetic Collagen-Binding Peptide NIPEP-OSS Delays Mouse Myeloma Progression. Cancers (Basel) 2023; 15:2473. [PMID: 37173940 PMCID: PMC10177053 DOI: 10.3390/cancers15092473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/13/2023] [Accepted: 04/14/2023] [Indexed: 05/15/2023] Open
Abstract
Multiple myeloma (MM) is the second most common hematological malignancy. It is a clonal B-cell disorder characterized by the proliferation of malignant plasma cells in the bone marrow, the presence of monoclonal serum immunoglobulin, and osteolytic lesions. An increasing amount of evidence shows that the interactions of MM cells and the bone microenvironment play a significant role, suggesting that these interactions may be good targets for therapy. The osteopontin-derived collagen-binding motif-bearing peptide NIPEP-OSS stimulates biomineralization and enhances bone remodeling dynamics. Due to its unique targeted osteogenic activity with a broad safety margin, we evaluated the potential of NIPEP-OSS for anti-myeloma activity using MM bone disease (MMBD) animal models. In a 5TGM1-engrafted NSG model, the survival rates of the control and treated groups were significantly different (p = 0.0014), with median survival times of 45 and 57 days, respectively. The bioluminescence analyses showed that myeloma slowly developed in the treated mice compared to the control mice in both models. NIPEP-OSS enhanced bone formation by increasing biomineralization in the bone. We also tested NIPEP-OSS in a well-established 5TGM1-engrafted C57BL/KaLwRij model. Similar to the previous model, the median survival times of the control and treated groups were significantly different (p = 0.0057), with 46 and 63 days, respectively. In comparison with the control, an increase in p1NP was found in the treated mice. We concluded that NIPEP-OSS delays mouse myeloma progression via bone formation in MMBD mouse models.
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Affiliation(s)
- Syed Hassan Mehdi
- Myeloma Center, The University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Austin C. Gentry
- Myeloma Center, The University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Jue-Yeon Lee
- Research Institute, NIBEC Co., Ltd., 174 Yulgok-ro, Jongno-gu, Seoul 03170, Republic of Korea
| | - Chong-Pyoung Chung
- Research Institute, NIBEC Co., Ltd., 174 Yulgok-ro, Jongno-gu, Seoul 03170, Republic of Korea
| | - Donghoon Yoon
- Myeloma Center, The University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
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Li Z, Zeng Y, Ren Q, Ding L, Han S, Hu D, Lu Z, Wang L, Zhang Y, Zhang L. Mineralization promotion and protection effect of carboxymethyl chitosan biomodification in biomimetic mineralization. Int J Biol Macromol 2023; 234:123720. [PMID: 36805508 DOI: 10.1016/j.ijbiomac.2023.123720] [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: 11/12/2022] [Revised: 01/25/2023] [Accepted: 02/13/2023] [Indexed: 02/21/2023]
Abstract
Biomimetic mineralization emphasizes reversing the process of dental caries through bio-inspired strategies, in which mineralization promotion and collagen protection are equally important. In this study, carboxymethyl chitosan (CMC) was deemed as an analog of glycosaminoglycan for biomimetic modification of collagen, both of the mineralization facilitation and collagen protection effect were evaluated. Experiments were carried out simultaneously on two-dimensional monolayer reconstituted collagen model, three-dimensional reconstituted collagen model and demineralized dentin model. In three models, CMC was successfully cross-linked onto collagen utilizing biocompatible 1-Ethyl-3(3-dimethylaminopropyl) carbodiimide hydrochloride and N-hydroxy sulfosuccinimide sodium salt to achieve biomodification. Results showed that CMC biomodification increased collagen's hydrophilicity, calcium absorption capacity and thermal degradation resistance. In demineralized dentin model, the activity of endogenous matrix metalloproteinases was significantly inhibited by CMC biomodification. Furthermore, CMC biomodification significantly improved cross-linking and intrafibrillar mineralization of collagen, especially in the two-dimensional monolayer reconstituted collagen model. This study provided a biomimetic mineralization strategy with comprehensive consideration of collagen protection, and enriched the application of chitosan-based materials in dentistry.
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Affiliation(s)
- Zhongcheng Li
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yuhao Zeng
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qian Ren
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Longjiang Ding
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Sili Han
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Die Hu
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Ziqian Lu
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Luoyao Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yinmo Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Linglin Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
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Chen L, Zeng Z, Li W. Poly(acrylic acid)-Assisted Intrafibrillar Mineralization of Type I Collagen: A Review. Macromol Rapid Commun 2023; 44:e2200827. [PMID: 36662644 DOI: 10.1002/marc.202200827] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/06/2023] [Indexed: 01/21/2023]
Abstract
The mineralization of type I collagen is a biological process occurring in vertebrates by which some hard tissues such as bone and dentin are constructed. Due to the extensive clinical needs for bone defect repair and remineralization of mineral-depleted dentin, biomimetic mineralization of collagen is attracting more and more interests. Synthetic analogs of noncollagenous proteins are necessary for directing the in vitro mineralization. In this paper, the function and mechanism of poly(acrylic acid) (PAA) in regulating the mineralization, especially intrafibrillar mineralization (IM) of collagen are reviewed. As two mineralization patterns (extrafibrillar and intrafibrillar) co-exist in natural hard tissues, differences between them in terms of microstructure, biodegradation, cytocompatibility, osteoinduction in vitro, and performance in vivo are systematically compared. Then the roles of PAA in biomimetic collagen IM within one-analog and two-analog systems are discussed, respectively. Moreover, mineralization of some self-mineralizable collagen matrices is described. Due to the interactions between collagen and PAA play a crucial role in the processes of collagen mineralization, some reference researches are also provided involving the collagen/PAA interactions in some other fields. Finally, this review is ended with an outlook for future potential improvements based on the collection of existing bottlenecks in this field.
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Affiliation(s)
- Lei Chen
- Department of Bio-medical Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Zhiyong Zeng
- Key Laboratory of Eco-Textiles, Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi, 214122, P. R. China
| | - Wenbing Li
- Key Laboratory of Eco-Textiles, Ministry of Education, College of Textile Science and Engineering, Jiangnan University, Wuxi, 214122, P. R. China
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Xie F, Long J, Yang J, Qin H, Lin X, Chen W. Effect of a new modified polyamidoamine dendrimer biomimetic system on the mineralization of type I collagen fibrils: an in vitro study. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:212-228. [PMID: 34547218 DOI: 10.1080/09205063.2021.1982642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
We evaluate the effects of the new Dentine matrix protein 1 (DMP-1) biomimetic system composed of phosphorylated polyamidoamine dendrimer (PAMAM-PO3H2) and carboxylated polyamidoamine dendrimer (PAMAM-COOH) on the mineralization of type I collagen fibrils. PAMAM-PO3H2 and PAMAM-COOH were observed to have the ability to induce internal and external mineralization of type I collagen fibrils in vitro through non-classical mineralization crystallization pathway, which has become a hopeful biomimetic system of biomimetic remineralization and demineralization of dentin type I collagen fibrils and has great potential in inducing biomimetic remineralization of demineralized dentin.
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Affiliation(s)
- Fangfang Xie
- College & Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China
| | - Jindong Long
- College & Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China
| | - Jing Yang
- College & Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China
| | - Hejia Qin
- College & Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China
| | - Xuandong Lin
- College & Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China
| | - Wenxia Chen
- College & Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China
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Jing Z, Chen Z, Jiang Y. Effects of DSPP Gene Mutations on Periodontal Tissues. Glob Med Genet 2021; 8:90-94. [PMID: 34430959 PMCID: PMC8378919 DOI: 10.1055/s-0041-1726416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Dentin sialophosphoprotein ( DSPP ) gene mutations cause autosomal dominantly inherited diseases. DSPP gene mutations lead to abnormal expression of DSPP, resulting in a series of histological, morphological, and clinical abnormalities. A large number of previous studies demonstrated that DSPP is a dentinal-specific protein, and DSPP gene mutations lead to dentin dysplasia and dentinogenesis imperfecta. Recent studies have found that DSPP is also expressed in bone, periodontal tissues, and salivary glands. DSPP is involved in the formation of the periodontium as well as tooth structures. DSPP deficient mice present furcation involvement, cementum, and alveolar bone defect. We speculate that similar periodontal damage may occur in patients with DSPP mutations. This article reviewed the effects of DSPP gene mutations on periodontal status. However, almost all of the research is about animal study, there is no evidence that DSPP mutations cause periodontium defects in patients yet. We need to conduct systematic clinical studies on DSPP mutation families in the future to elucidate the effect of DSPP gene on human periodontium.
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Affiliation(s)
- Zhaojun Jing
- Department of General Dentistry II, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, People's Republic of China
| | - Zhibin Chen
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, People's Republic of China
| | - Yong Jiang
- Department of General Dentistry II, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, People's Republic of China
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Yamada M, Nagayama M, Miyamoto Y, Kawano S, Takitani Y, Tanaka M, Ehara M, Nakao J, Ochiai T, Shibukawa Y, Yoshida T. Mineral Trioxide Aggregate (MTA) Upregulates the Expression of DMP1 in Direct Pulp Capping in the Rat Molar. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4640. [PMID: 34443162 PMCID: PMC8400143 DOI: 10.3390/ma14164640] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/06/2021] [Accepted: 08/13/2021] [Indexed: 02/06/2023]
Abstract
Mineral trioxide aggregate (MTA) is an alternative endodontic material that predicts conductive or inductive calcified tissue formation from immature pulp mesenchymal stem cells (IPMSCs). The purpose of this study was to investigate whether MTA could promote reparative odontoblast differentiation via IPMSCs in the early phase of regeneration and compare with calcium hydroxide (CH). Direct pulp capping using calcium hydroxide (CH), MTA, and MTA with platelet-rich plasma (MTA + PRP) was performed on maxillary first molars of 8-week-old male Wistar rats (n = 36). After 3, 7, or 14 days, the teeth were analyzed for mineral density (MD) and volume of MD (VMD) via micro-focusing computed tomography (µCT), nestin, dentin matrix acidic phosphoprotein 1 (DMP1) immunohistochemistry, and real-time PCR for DMP1 mRNA expression. MTA stimulated the early phase differentiation of the IPMSCs into odontoblasts, with positive results for nestin and DMP1 compared with CH. Moreover, MTA + PRP stimulated calcified granule and dentin bridge formation through calcium mineral deposition, following the induction of DMP1 mRNA expression in IPMSCs. Our results suggested that the combination of MTA and PRP is an effective and clinically applicable method for activating endogenous dental pulp stem cells into odontoblasts in the early stages of pulp regeneration.
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Affiliation(s)
- Maiko Yamada
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University, Mizuho, Gifu 501-0296, Japan; (M.Y.); (S.K.); (Y.T.); (M.T.); (T.Y.)
| | - Motohiko Nagayama
- Department of Oral Pathology, Division of Oral Pathogenesis and Disease Control, School of Dentistry, Asahi University, Mizuho, Gifu 501-0296, Japan; (Y.M.); (M.E.); (J.N.); (T.O.)
| | - Yuka Miyamoto
- Department of Oral Pathology, Division of Oral Pathogenesis and Disease Control, School of Dentistry, Asahi University, Mizuho, Gifu 501-0296, Japan; (Y.M.); (M.E.); (J.N.); (T.O.)
| | - Satoshi Kawano
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University, Mizuho, Gifu 501-0296, Japan; (M.Y.); (S.K.); (Y.T.); (M.T.); (T.Y.)
| | - Yoshiaki Takitani
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University, Mizuho, Gifu 501-0296, Japan; (M.Y.); (S.K.); (Y.T.); (M.T.); (T.Y.)
| | - Masashi Tanaka
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University, Mizuho, Gifu 501-0296, Japan; (M.Y.); (S.K.); (Y.T.); (M.T.); (T.Y.)
| | - Michiko Ehara
- Department of Oral Pathology, Division of Oral Pathogenesis and Disease Control, School of Dentistry, Asahi University, Mizuho, Gifu 501-0296, Japan; (Y.M.); (M.E.); (J.N.); (T.O.)
| | - Juna Nakao
- Department of Oral Pathology, Division of Oral Pathogenesis and Disease Control, School of Dentistry, Asahi University, Mizuho, Gifu 501-0296, Japan; (Y.M.); (M.E.); (J.N.); (T.O.)
| | - Takanaga Ochiai
- Department of Oral Pathology, Division of Oral Pathogenesis and Disease Control, School of Dentistry, Asahi University, Mizuho, Gifu 501-0296, Japan; (Y.M.); (M.E.); (J.N.); (T.O.)
| | - Yoshihiro Shibukawa
- Department of Removable Partial Prosthodontics, Tokyo Dental College, Chiyoda-Ku, Tokyo 101-0061, Japan;
| | - Takakazu Yoshida
- Department of Endodontics, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University, Mizuho, Gifu 501-0296, Japan; (M.Y.); (S.K.); (Y.T.); (M.T.); (T.Y.)
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Qin H, Long J, Zhou J, Wu L, Xie F. Use of phosphorylated PAMAM and carboxyled PAMAM to induce dentin biomimetic remineralization and dentinal tubule occlusion. Dent Mater J 2021; 40:800-807. [PMID: 33642446 DOI: 10.4012/dmj.2020-222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
It is crucial to emphasize the biomineralization therapeutic method to repair etched dentin in clinic. Non-collagenous proteins (NCPs) play critical role in the biomineralization of dentine. In this paper, we synthesized the phosphate-terminated polyamidoamine dendrimer (PAMAM-PO3H2) by one-step modification successfully and examined by Fourier-transform infrared spectroscopy (FTIR) and 1H-nuclear Magnetic Resonance (1H-NMR) to characterize the structure of PAMAM-PO3H2. PAMAM-PO3H2 and carboxylterminated dendrimers (PAMAM-COOH) were applied as the dual biomimetic analogs of NCPs. Through the characterization of FT-IR, field emission scanning electron microscope (FE-SEM), transmission electron microscope (TEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD), the surfaces of human dentin were covered with regenerated crystals and the dentinal tubules were occluded by PAMAM-PO3H2 and PAMAM-COOH. In summary, the combination of PAMAM-PO3H2 and PAMAM-COOH may be another feasible therapeutic method for the treatment of dentin caries and dentin hypersensitivity.
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Affiliation(s)
- Hejia Qin
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University
| | - Jindong Long
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University
| | - Jun Zhou
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University
| | - Liuxian Wu
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University
| | - Fangfang Xie
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University
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Ye J, Wang Y, Zhu Q, Shi H, Xiang D, Wu C, Song L, Ma N, Liu Q, Zhang W. Primary observation of the role of posttranslational modification of dentin sialophosphoprotein (DSPP) on postnatal development of mandibular condyle in mice. Arch Oral Biol 2021; 125:105086. [PMID: 33639479 DOI: 10.1016/j.archoralbio.2021.105086] [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: 12/26/2020] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVES We aimed to observe the posttranslational role of dentin sialophosphoprotein (DSPP) on postnatal development of mandibular condyle in mice. METHODS To explore the function of full-length DSPP, four groups of mice were employed: (1) wild type (WT) mice; (2)Dspp knockout (Dspp KO) mice; (3) mice expressing the normal DSPP transgene in the Dspp KO background (Dspp KO/normal Tg); (4) mice expressing the uncleavable full-length DSPP in the Dspp KO background (Dspp KO/D452A Tg). Firstly, Plain X-ray Radiography and Micro-computed Tomography were used to observe the condylar morphology changes of Dspp KO/D452A Tg mice in comparison with the other three groups. Then, Hematoxylin & eosin and toluidine blue staining were applied to uncover the histological changes of mandibular condylar cartilage (MCC) of Dspp KO/D452A Tg mice. To explore the function of the NH2-terminal fragments (i.e. DSP/DSP-PG), three groups of mice were employed: (1) WT mice; (2) Dspp KO mice; (3) mice expressing the NH2-terminal fragments of DSPP in the Dspp-null background (Dspp KO/DSP Tg). The former strategies were utilized to examine the differences of condylar morphology and histological structures changes within three groups of mice. RESULTS Transgenic full-length DSPP partially maintained mandibular condylar morphology and MCC thickness of Dspp KO mice. Transgenic DSP failed to do so, but led to smaller mandibular condyle and disordered cartilage structure. CONCLUSIONS Our observations provide insight into the role of posttranslational modification of DSPP in the postnatal development of healthy MCC and maintenance of condylar morphology.
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Affiliation(s)
- Jiapeng Ye
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Yue Wang
- Department of Oral and Maxillofacial Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Qinglin Zhu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Haibo Shi
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Danwei Xiang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Chunyue Wu
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Lina Song
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Ning Ma
- Department of Rheumatology, The First Hospital, Jilin University, Changchun, China
| | - Qilin Liu
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China.
| | - Wei Zhang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China.
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Jeong MJ, Lim DS, Kim SO, Park C, Choi YH, Jeong SJ. Effect of rosmarinic acid on differentiation and mineralization of MC3T3-E1 osteoblastic cells on titanium surface. Anim Cells Syst (Seoul) 2021; 25:46-55. [PMID: 33717416 PMCID: PMC7935130 DOI: 10.1080/19768354.2021.1886987] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Titanium (Ti) is a widely used biomaterial for dental implants because of its outstanding biocompatibility for hard tissues. Osseointegration, the interaction between implanted biomaterials and living cells in bone, is essential for successful implantation. Rosmarinic acid (RA) is a plant-derived phytochemical with low toxicity and side effects and has various effects that can be applied as a therapeutic substance. The MC3T3-E1 osteoblastic cells on the Ti surface in medium with or without 14 μg/ml RA were used to test RA effects on osteoblast differentiation, cell viability and mineralization during differentiation. RA treatment increased osteoblast differentiation, cell viability and mineralization in MC3T3-E1 osteoblastic cells on Ti surface during differentiation, upregulating Runx-2 and OPG, but downregulating RANKL. This study suggest that RA should be applied as an effective functional and therapeutic substance to enhance osseointegration of osteoblast cells by increasing differentiation, mineralization, and bone formation through the RANKL/RANK/OPG pathway during the differentiation in MC3T3-E1 osteoblastic cells on the Ti surface.
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Affiliation(s)
- Moon-Jin Jeong
- Department of Oral Histology and Developmental Biology, School of Dentistry, Chosun University, Gwangju, Korea
| | - Do-Seon Lim
- Department of Dental Hygiene, Graduate School of Public Health Science, Eulji University, Seongnam, Korea
| | - Sung Ok Kim
- Department of Food Science and Biotechnology, College of Engineering, Kyungsung University, Busan, Korea
| | - Cheol Park
- College of Liberal Studies, Division of Basic Sciences, Dong-eui University, Busan, Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Korean Medicine, Dong-eui University, Busan, Korea
| | - Soon-Jeong Jeong
- Department of Dental Hygiene, College of Health Science, Youngsan University, Yangsan, Korea.,Institute of Basic Science for Well-Aging, Youngsan University, Yangsan, Korea
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12
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Contemporary restorative ion-releasing materials: current status, interfacial properties and operative approaches. Br Dent J 2020; 229:450-458. [PMID: 33037365 DOI: 10.1038/s41415-020-2169-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 05/06/2020] [Indexed: 02/08/2023]
Abstract
Minimally invasive (MI) concepts in restorative dentistry in the year 2020 request from the practitioner not only a scientifically supported rationale for carious tissue removal/excavation and defect-oriented, biological cavity preparation, but also a deep understanding of how to ensure a biomechanically stable and durable restoration in different clinical situations by applying different restorative options. Bio-interactive materials play an increasingly relevant role, as they not only replace diseased or lost tissue, but also optimise tissue mineral recovery (among other properties) when used in restorative and preventive dentistry. Indeed, this is of certain interest in MI restorative dentistry, especially in those cases where gap formation jeopardises the integrity of the margins along resin composite restorations, causing penetration of bacteria and eventually promoting the formation of secondary caries. Recently, the interest in whether ion-releasing materials may reduce such biofilm penetration into margin gaps and reduce such a risk for development and propagation of secondary caries is growing significantly among clinicians and scientists. The aim of this article was to explore mechanisms involved in the process that allow mineral deposition at the interface between such materials and dentine, and to describe how conventional 'bioactive' restorative materials currently available on the market may benefit treatments in MI dentistry.
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13
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Zuo Q, Yao J, Lu S, Du Z, Li S, Lin F, Shi W, Zhang Y, Xiao Y. The role of organic phosphate in the spatial control of periodontium complex bio-mineralization: an in vitro study. J Mater Chem B 2020; 7:5956-5965. [PMID: 31524208 DOI: 10.1039/c9tb01261c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The periodontal structure is a particularly exquisite model of hierarchical spatial control of mineralization. Extracellular matrix control in the selective mineralization of the periodontium complex remains elusive since the extracellular matrix is a set of mineralization promoters and inhibitors. The phosphorylated proteins, which are ubiquitous in the extracellular matrix of the periodontium complex, are well-documented as primary factors in the regulation of tissue mineralization. Whether organic phosphates are key regulators in defining the interfaces between dentin, cementum, periodontal ligament and alveolar bone is an issue worthy of research. Here, we investigated the in vitro remineralization process of demineralized and dephosphorylated periodontal tissue sections. When exposed to a metastable mineralization solution, a large number of calcospherulites deposited on the surface of the dephosphorylated sections and the tissue selective mineralization were disrupted. Interestingly, on adding a dentin matrix protein-1 analogue named polyacrylic acid, the surface mineralization rate in the dephosphorylated periodontal complex reduced dramatically. In contrast, hierarchical mineralization was displayed by the demineralized section at the tissue collagen fibrillar levels in both alveolar bone and dentin regions. These results demonstrated that the organic phosphate could prevent surface mineral deposition, and the minerals could penetrate the collagen fibrils to initiate a selective and hierarchal tissue mineralization with the assistance of the dentin matrix protein-1 analogue in the periodontal complex. This study enhances our understanding of the mineralization discrepancy in the periodontal tissues, which will provide some insight into the development of biomaterials for the regeneration of soft-hard tissue interfaces.
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Affiliation(s)
- Qiliang Zuo
- Ministry Education Key Laboratory for Oral Biomedical Engineering, School of Stomatology, Wuhan University, Wuhan 430079, P. R. China.
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Sun Q, Jiang Y, Fan M, Zhang X, Xu H, Liao Z. Characterization of a novel shell matrix protein with vWA domain from Mytilus coruscus. Biosci Biotechnol Biochem 2020; 84:1629-1644. [PMID: 32314940 DOI: 10.1080/09168451.2020.1756735] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Mollusk shell is a product of biomineralization with excellent mechanical properties, and the shell matrix proteins (SMPs) have important functions in shell formation. A vWA domain-containing protein (VDCP) was identified from the shell of Mytilus coruscus as a novel shell matrix protein. The VDCP gene is expressed at a high level in specific locations in the mantle and adductor muscle. Recombinant VDCP (rVDCP) showed abilities to alter the morphology of both calcite and aragonite, induce the polymorph change of calcite, bind calcite, and decrease the crystallization rate of calcite. In addition, immunohistochemistry analyses revealed the specific location of VDCP in the mantle, the adductor muscle, and the myostracum layer of the shell. Furthermore, a pull-down analysis revealed eight protein interaction partners of VDCP in shell matrices and provided a possible protein-protein interaction network of VDCP in the shell.
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Affiliation(s)
- Qi Sun
- Laboratory of Marine Biology Protein Engineering, Marine Science and Technical College, Zhejiang Ocean University , Zhoushan City, Zhejiang, China
| | - Yuting Jiang
- Laboratory of Marine Biology Protein Engineering, Marine Science and Technical College, Zhejiang Ocean University , Zhoushan City, Zhejiang, China
| | - Meihua Fan
- Laboratory of Marine Biology Protein Engineering, Marine Science and Technical College, Zhejiang Ocean University , Zhoushan City, Zhejiang, China
| | - Xiaolin Zhang
- Laboratory of Marine Biology Protein Engineering, Marine Science and Technical College, Zhejiang Ocean University , Zhoushan City, Zhejiang, China
| | - Huanzhi Xu
- Laboratory of Marine Biology Protein Engineering, Marine Science and Technical College, Zhejiang Ocean University , Zhoushan City, Zhejiang, China
| | - Zhi Liao
- Laboratory of Marine Biology Protein Engineering, Marine Science and Technical College, Zhejiang Ocean University , Zhoushan City, Zhejiang, China
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15
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Aseervatham J, Geetu S, Anunobi CC, Koli K, Ogbureke KUE. Survey of dentin sialophosphoprotein and its cognate matrix metalloproteinase-20 in human cancers. Cancer Med 2019; 8:2167-2178. [PMID: 30932369 PMCID: PMC6537041 DOI: 10.1002/cam4.2117] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 03/10/2019] [Indexed: 01/05/2023] Open
Abstract
Background Matrix metalloproteinases‐20 (MMP20) expression is widely regarded as tooth specific, with expression limited to dental hard tissues. Recently, we reported MMP20 expression and interaction with dentin sialophosphoprotein (DSPP), a member of the Small Integrin Binding Ligand N‐linked Glycoproteins (SIBLINGs), in human oral squamous cell carcinoma (OSCC) and dysplastic oral premalignant lesions (OPLs), suggesting a role for MMP20‐DSPP interaction in oral carcinogenesis. Methods This study aimed to survey the expression of MMP20 and its cognate DSPP partner in the breast, colon, prostate, thyroid, and cervical neoplasms. Using commercially available tissue microarrays (TMAs) and cell lines, we performed immunohistochemistry, immunofluorescence, proximity ligation assay, and western blot experiments to determine the expressions of MMP20 and DSPP in the breast, colon, prostate, thyroid, cervical neoplasms, and their normal counterparts. Results Significantly high expression levels of MMP20 and DSPP were observed in the malignant breast, colon, prostate, thyroid, and cervical neoplasms compared with their benign and normal counterparts. Furthermore, MMP20 levels increased with advanced stages of colon and thyroid cancers. DSPP expression increased significantly with tumor stage in all cancers examined. Conclusions The co‐localization and potential MMP20‐DSPP interaction previously reported in oral cancers are present in other cancers. These results suggest MMP20‐DSPP pairing as a potential marker of disease activity in some epithelial cancers with diagnostic and prognostic implications.
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Affiliation(s)
- Jaya Aseervatham
- Department of Diagnostic and Biomedical Sciences, University of Texas School of Dentistry at Houston, Houston, Texas
| | - Saxena Geetu
- Department of Diagnostic and Biomedical Sciences, University of Texas School of Dentistry at Houston, Houston, Texas
| | - Charles C Anunobi
- Department of Anatomic and Molecular Pathology, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Komal Koli
- Department of Diagnostic and Biomedical Sciences, University of Texas School of Dentistry at Houston, Houston, Texas
| | - Kalu U E Ogbureke
- Department of Diagnostic and Biomedical Sciences, University of Texas School of Dentistry at Houston, Houston, Texas
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16
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Song Q, Jiao K, Tonggu L, Wang LG, Zhang SL, Yang YD, Zhang L, Bian JH, Hao DX, Wang CY, Ma YX, Arola DD, Breschi L, Chen JH, Tay FR, Niu LN. Contribution of biomimetic collagen-ligand interaction to intrafibrillar mineralization. SCIENCE ADVANCES 2019; 5:eaav9075. [PMID: 30989106 PMCID: PMC6459768 DOI: 10.1126/sciadv.aav9075] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/06/2019] [Indexed: 05/03/2023]
Abstract
Contemporary models of intrafibrillar mineralization mechanisms are established using collagen fibrils as templates without considering the contribution from collagen-bound apatite nucleation inhibitors. However, collagen matrices destined for mineralization in vertebrates contain bound matrix proteins for intrafibrillar mineralization. Negatively charged, high-molecular weight polycarboxylic acid is cross-linked to reconstituted collagen to create a model for examining the contribution of collagen-ligand interaction to intrafibrillar mineralization. Cryogenic electron microscopy and molecular dynamics simulation show that, after cross-linking to collagen, the bound polyelectrolyte caches prenucleation cluster singlets into chain-like aggregates along the fibrillar surface to increase the pool of mineralization precursors available for intrafibrillar mineralization. Higher-quality mineralized scaffolds with better biomechanical properties are achieved compared with mineralization of unmodified scaffolds in polyelectrolyte-stabilized mineralization solution. Collagen-ligand interaction provides insights on the genesis of heterogeneously mineralized tissues and the potential causes of ectopic calcification in nonmineralized body tissues.
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Affiliation(s)
- Q. Song
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’ an, Shaanxi, PR China
| | - K. Jiao
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’ an, Shaanxi, PR China
| | - L. Tonggu
- Department of Biological Structure, School of Medicine, University of Washington, Seattle, WA, USA
| | - L. G. Wang
- Department of Biological Structure, School of Medicine, University of Washington, Seattle, WA, USA
| | - S. L. Zhang
- Department of Applied Physics, Xi'an Jiaotong University, Xi’an, Shaanxi, PR China
| | - Y. D. Yang
- Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - L. Zhang
- Department of Applied Physics, Xi'an Jiaotong University, Xi’an, Shaanxi, PR China
| | - J. H. Bian
- Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - D. X. Hao
- Department of Applied Physics, Xi'an Jiaotong University, Xi’an, Shaanxi, PR China
| | - C. Y. Wang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’ an, Shaanxi, PR China
| | - Y. X. Ma
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’ an, Shaanxi, PR China
| | - D. D. Arola
- Department of Materials Science & Engineering, University of Washington, Seattle, WA, USA
| | - L. Breschi
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - J. H. Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’ an, Shaanxi, PR China
| | - F. R. Tay
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’ an, Shaanxi, PR China
- College of Dental Medicine, Augusta University, Augusta, GA, USA
| | - L. N. Niu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’ an, Shaanxi, PR China
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Zheng B, Mao C, Gu T, Pan H, Shao C, Sun J, Chen C, Tang R, Gu X. Phosphorylated chitosan to promote biomimetic mineralization of type I collagen as a strategy for dentin repair and bone tissue engineering. NEW J CHEM 2019. [DOI: 10.1039/c8nj04889d] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This novel biomimetic mineralization technique provides an efficient method to produce an advanced mineralized matrix.
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Affiliation(s)
- Bo Zheng
- Zhejiang Stomatological Hospital
- Hangzhou
- P. R. China
| | - Caiyun Mao
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University
- P. R. China
| | - Tianyi Gu
- School of Stomatology, Zhejiang Chinese Medical University
- P. R. China
| | - Haihua Pan
- Centre for Biopathways and Biomaterials, Department of Chemistry, Zhejiang University
- P. R. China
| | - Changyu Shao
- Centre for Biopathways and Biomaterials, Department of Chemistry, Zhejiang University
- P. R. China
| | - Jian Sun
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University
- P. R. China
| | - Chaoqun Chen
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University
- P. R. China
| | - Ruikang Tang
- Centre for Biopathways and Biomaterials, Department of Chemistry, Zhejiang University
- P. R. China
| | - Xinhua Gu
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University
- P. R. China
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18
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Application of Solution Plasma Surface Modification Technology to the Formation of Thin Hydroxyapatite Film on Titanium Implants. COATINGS 2018. [DOI: 10.3390/coatings9010003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Hydroxyapatite (HA) coatings on titanium implants enhance rapid bone formation around the implant due to their osteoconductive property. The present study aimed to achieve a thin and uniform HA film coating on titanium implants by solution plasma treatment (SPT). Commercially pure titanium and porous titanium disks were employed. A pulse plasma generator was used on the disks for 30 min. Morphologic and crystallographic features of the deposited films were examined by scanning electron microscopy (SEM) and X-ray diffractometry (XRD). To evaluate the wettability of the disks, water droplet (20 µL) surfaces were measured using a contact angle analyzer. The initial attachment of osteoblast-like cells (MC3T3E1) on the titanium substrates before and after solution plasma treatment was evaluated by counting the number of attached cells after incubation for 4 h. After immersion in the mineralizing solution for up to seven days, no crystals were observed on the polished-Ti surface. A more uniform and dense precipitation of round and grown crystals with diameters of approximately 1–5 µm was observed on Ti-SPT. XRD clearly showed that the precipitated crystals on titanium disks were HA. The contact angle of the polished-Ti increased with time (θ = 37°–51°). The surface of the Ti-SPT remained hydrophilic (θ ˂ 5°) after up to 30 days of aging. The number of attached cells on the Ti-SPT after aging for 30 days remained above 85% of that on the Ti-SPT without aging. SPT in a mineralizing solution can be used to acquire a homogenous precipitation of HA on porous-surfaced titanium implants.
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Biochemical assessment of nanostructures in human trabecular bone: Proposal of a Raman microspectroscopy based measurements protocol. Injury 2018; 49 Suppl 2:S11-S21. [PMID: 30077357 DOI: 10.1016/j.injury.2018.07.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/26/2018] [Accepted: 07/27/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Improvements to the understating of the compositional contributions of bone mineral and organic components to the competence of trabecular bone are crucial. The purpose of this study was to propose a protocol to study biochemical composition of trabecular bone, based on two combined Raman analysis methodologies. MATERIAL AND METHODS Both cluster and single point Raman mappings were obtained, in order to assess bone degeneration associated with aging, disease, or injury, and to help in the evaluation and development of successful therapies. In this study, human trabecular bone has been analysed throughout a) Raman cluster analysis: bone mineral content, carbonate-to-phosphate ratio (both from the mineral components), the crosslinking and nature/secondary structure of collagen (both from the organic components); and b) Single point Raman spectra, where Raman points related to the minerals and organic components were also obtained, both techniques were employed in spectra attained at 400 to 1700 cm-1. RESULTS Multivariate analysis confirmed: 1) the different spectral composition, 2) the existence of centroids grouped by chemical affinity of the various components of the trabecular bone, and 3) the several traces of centroids and distribution of chemical compositional clusters. CONCLUSIONS This study is important, because it delivers a study protocol that provides molecular variations information in both mineral and collagen structure of trabecular bone tissue. This will enable clinicians to benefit knowing the microstructural differences in the bone subjected to degeneration of their patients.
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Yu L, Martin IJ, Kasi RM, Wei M. Enhanced Intrafibrillar Mineralization of Collagen Fibrils Induced by Brushlike Polymers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:28440-28449. [PMID: 30081624 DOI: 10.1021/acsami.8b10234] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Biomimetic mineralization of collagen fibrils is an essential process because the mineralized collagen fibers constitute the basic building block of natural bone. To overcome the limited availability and high cost of the noncollagenous proteins (NCPs) that regulate the mineralization process of collagen, commercially available analogues were developed to replicate sequestration and templating functions of NCPs. The use of branched polymers in intrafibrillar mineralization applications has never been explored. In this work, two novel carboxyl-rich brushlike polymers, a carboxylated polyethylene glycol terpolymer (PEG-COOH) and a polyethylene glycol/poly(acrylic acid) copolymer (PEG-PAA), were synthesized and modified to mimic the sequestration function of NCPs to induce intrafibrillar mineralization of collagen fibrils. It was found that these synthetic brushlike polymers are able to induce intrafibrillar mineralization by stabilizing the amorphous calcium phosphate (ACP) nanoprecursors and subsequently facilitating the infiltration of ACP into the gap zone of collagen microfibrils. Moreover, the weight ratios of mineral to collagen in the mineralized collagen fibrils in the presence of these brushlike polymers were 2.17 ± 0.07 for PEG-COOH and 2.23 ± 0.03 for PEG-PAA, while it is only 1.81 ± 0.21 for linear PAA. Plausible mineralization mechanisms using brushlike polymers are proposed that offer significant insight into the understanding of collagen mineralization induced by synthetic NCP analogues.
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21
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Qi Y, Ye Z, Fok A, Holmes BN, Espanol M, Ginebra MP, Aparicio C. Effects of Molecular Weight and Concentration of Poly(Acrylic Acid) on Biomimetic Mineralization of Collagen. ACS Biomater Sci Eng 2018; 4:2758-2766. [PMID: 30581990 DOI: 10.1021/acsbiomaterials.8b00512] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Inspired by nature, poly(acrylic acid) (PAA) and other polyelectrolytes have been used as noncollagenous proteins (NCPs) surrogates for biomimetic intrafibrillar mineralization of collagen fibrils and thus, to model the ultrastructure of bone, to study the mechanism of bone mineralization and, more scarcely to fabricate scaffolds for hard tissue engineering. The objective of this study was to systematically investigate the effect of the molecular weight (MW) and the concentration of PAA on the rate and pattern of biomineralization of collagen matrices. Densified type I collagen films were mineralized in supersaturated PAA-stabilized amorphous calcium-phosphate (PAA-ACP) solutions containing increasing MW (2 kDa, 50 kDA, 450 kDa) and concentrations (10, 25, 50 mg/L) of PAA up to 7 days. The stability and physical properties of collagen-free PAA-ACP solutions were also investigated. In our system, lowering PAA MW and increasing PAA concentration resulted in solutions with increasing stability. Over stable PAA-ACP solutions that fully inhibited mineralization of the collagen matrices were achieved using PAA 2k-50. Conversely, unstable solutions were obtained using high PAA MW at low concentrations. Nucleation and growth of significant amount of extrafibrillar minerals on the collagen fibrils was obtained using these solutions. In a wide range of combined MW and concentration of PAA we obtained intrafibrillar mineralization of collagen with hydroxyapatite crystals aligned parallel to the collagen fibril as in natural tissues. Intrafibrillar mineralization was correlated with PAA-ACP stability and growth of the PAA-ACP particles in solution. Our results support using PAA to surrogate NCPs function as selective inhibitors or promoters of biological mineralization and provide parameters to manufacture new biomimetic scaffolds and constructs for bone and dentin tissue engineering.
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Affiliation(s)
- Yipin Qi
- Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510000, China
| | - Zhou Ye
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN, USA
| | - Alex Fok
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN, USA
| | - Brian N Holmes
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN, USA
| | - Monsterrat Espanol
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 10-14, 08019 Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 10-14, 08019 Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain.,Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology, C/Baldiri Reixac 10-12, 08028, Barcelona, Spain
| | - Conrado Aparicio
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN, USA
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22
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Baglar S, Erdem U, Dogan M, Turkoz M. Dentinal tubule occluding capability of nano-hydroxyapatite; The in-vitro evaluation. Microsc Res Tech 2018; 81:843-854. [DOI: 10.1002/jemt.23046] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/03/2018] [Accepted: 04/12/2018] [Indexed: 02/02/2023]
Affiliation(s)
- Serdar Baglar
- Department of Restorative Dentistry, Faculty of Dentistry; Kirikkale University; Kirikkale, 71450 Turkey
| | - Umit Erdem
- Scientific and Technological Research Application and Research Center, Kirikkale University; Kirikkale, 71450 Turkey
| | - Mustafa Dogan
- Scientific and Technological Research Application and Research Center, Kirikkale University; Kirikkale, 71450 Turkey
| | - Mustafa Turkoz
- Faculty of Engineering, Department of Electric and Electronics Engineering; Karabük University; Karabuk, 78050 Turkey
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Transgenic expression of dentin phosphoprotein (DPP) partially rescued the dentin defects of DSPP-null mice. PLoS One 2018; 13:e0195854. [PMID: 29672573 PMCID: PMC5908185 DOI: 10.1371/journal.pone.0195854] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 03/31/2018] [Indexed: 11/19/2022] Open
Abstract
Mutations in the dentin sialophosphoprotein (DSPP) gene cause dentinogenesis imperfecta. After synthesis, DSPP is proteolytically processed into NH2- and COOH-terminal fragments. The NH2-terminal fragment of DSPP is highly glycosylated but not phosphorylated, whereas the COOH-terminal fragment (named "dentin phosphoprotein" or "DPP") is highly phosphorylated but not glycosylated. These two fragments are believed to perform distinct roles in dentin formation. To analyze the functions of DPP in dentinogenesis, we created "Dspp-/-;DPP Tg mice", which expressed transgenic DPP driven by a Type I collagen promoter but lacked the endogenous Dspp gene. We characterized the dentin of the Dspp-/-;DPP Tg mice using X-ray radiography, histology, scanning electron microscopy, double fluorochrome labeling, immunohistochemistry and in situ hybridization. Micro-computed tomography analyses revealed that at postnatal 6 months, the transgenic expression of DPP increased the dentin thickness of the Dspp-null mice by 97.1% and restored the dentin material density by 29.5%. Histological analyses showed that the Dspp-null mice manifested an abnormal widening of the predentin while the predentin in Dspp-/-;DPP Tg mice was narrower than in the Dspp-null mice. Scanning electron microscopy analyses showed that the dentinal tubules in the Dspp-/-;DPP Tg mice were better organized than in the Dspp-null mice. The double fluorochrome labeling analyses demonstrated that the dentin mineral deposition rate in the Dspp-/-;DPP Tg mice was significantly improved compared to that in the Dspp-null mice. These findings indicate that the transgenic expression of DPP partially rescued the dentin defects of the DSPP-null mice, suggesting that DPP may promote dentin formation and that the coordinated actions between DPP and the NH2-terminal fragment of DSPP may be necessary for dentinogenesis.
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Toledano M, Osorio R, Guerado E, Caso E, Osorio E. Nanostructure in the trabecular bone of postmenopausal women: Mechanical and chemical analysis. Injury 2017; 48 Suppl 6:S26-S33. [PMID: 29162238 DOI: 10.1016/s0020-1383(17)30791-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The possibility of diagnosis and prediction of multiple disorders in trabecular bone through nano-biomechanics and chemical analysis are summarized. Improvements to the understating of the compositional contributors of bone mineral and organic components to mechanical competence are crucial. Viscoelastic properties and Raman characterization have been used to evaluate possible alterations of the trabecular bone associated with aging, disease, or injury. In this study, the trabecular bone of postmenopausal women has been analyzed throughout. (a) Nanomechanical characterization, by using nano-DMA: complex modulus, tan δ, loss modulus (E'), and storage modulus (E'); and (b) Raman analysis: relative presence of minerals, carbonate-to-phosphate ratio (both from the mineral components), the crosslinking and nature/secondary structure of collagen (both from the organic components). Complementary nano-morphological studies were done assessing roughness (SRa) and collagen fibrils width, on this trabecular bone. A general idea of the behavior of the viscoelastic performance can be obtained by the Tan δ (E″/E'), that achieved 0.98GPa of damping. 249nm and 0.898μm of SRa roughness and fibrils width were obtained, respectively. The relative presence of minerals, the carbonate-to-phosphate ratio, the crosslinking and the nature/secondary structure of collagen, between 700 and 1700cm-1, were also obtained, in order to propose a study protocol for trabecular bone characterization.
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Affiliation(s)
- Manuel Toledano
- Faculty of Dentistry, Dental Materials Section, University of Granada, Granada, Spain
| | - Raquel Osorio
- Faculty of Dentistry, Dental Materials Section, University of Granada, Granada, Spain.
| | - Enrique Guerado
- Department of Orthopaedic Surgery and Traumatology, Hospital Universitario Costa del Sol, University of Malaga, Malaga, Spain
| | - Enrique Caso
- Research Unit, Hospital Universitario Costa del Sol, University of Malaga, Malaga, Spain
| | - Estrella Osorio
- Faculty of Dentistry, Dental Materials Section, University of Granada, Granada, Spain
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25
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Jie Y, Cai Z, Li S, Xie Z, Ma M, Huang X. Hydroxyapatite nucleation and growth on collagen electrospun fibers controlled with different mineralization conditions and phosvitin. Macromol Res 2017. [DOI: 10.1007/s13233-017-5091-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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26
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Liu Q, Li C, Geng F, Huang X, Ma M. Hen egg yolk phosvitin stimulates osteoblast differentiation in the absence of ascorbic acid. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:4532-4538. [PMID: 28332213 DOI: 10.1002/jsfa.8320] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 03/17/2017] [Accepted: 03/18/2017] [Indexed: 06/06/2023]
Abstract
BACKGROUND Egg yolk phosvitin, one of the most highly phosphorylated extracellular matrix proteins known in nature, has a strong calcium binding and reducing capacity. Here, we investigated the effects of phosvitin on osteoblast differentiation and osteogenic gene expression in cultured mouse osteoblastic MC3T3-E1 cells by using alkaline phosphatase activity analysis, alizarin red S staining and real-time PCR assay. RESULTS Alkaline phosphatase activity and alizarin red S staining analyses demonstrated no significant difference between differentiating MC3T3-E1 cells cultured in the presence of phosvitin and those cultured in the presence of ascorbic acid after 21 days of differentiation. Our real-time PCR assay also indicated the two groups were similar in the expression of the osteogenic gene markers, collagen type I, osteocalcin, runt-related transcription factor 2, and bone morphogenetic protein-2. CONCLUSION Our findings indicate that phosvitin plays a similar role to that of ascorbic acid in osteoblast differentiation and mineralisation. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Qingli Liu
- National R27D Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Chunyan Li
- National R27D Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Fang Geng
- College of pharmacy and bioengineering, Chengdu University, Chengdu, China
| | - Xi Huang
- National R27D Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Meihu Ma
- National R27D Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
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27
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Role of phosphorylation of phosvitin in the phase transformation of mineralization. Int J Biol Macromol 2017; 101:712-718. [DOI: 10.1016/j.ijbiomac.2017.03.158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 03/21/2017] [Accepted: 03/27/2017] [Indexed: 02/01/2023]
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28
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Lin X, Xie F, Ma X, Hao Y, Qin H, Long J. Fabrication and characterization of dendrimer-functionalized nano-hydroxyapatite and its application in dentin tubule occlusion. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:846-863. [PMID: 28325103 DOI: 10.1080/09205063.2017.1308654] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xuandong Lin
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
| | - Fangfang Xie
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
| | - Xueling Ma
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
| | - Yuhong Hao
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
| | - Hejia Qin
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
| | - Jindong Long
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
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29
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Tao S, Fan M, Xu HHK, Li J, He L, Zhou X, Liang K, Li J. The remineralization effectiveness of PAMAM dendrimer with different terminal groups on demineralized dentin in vitro. RSC Adv 2017. [DOI: 10.1039/c7ra11844a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The aim of this study was to examine the dentin remineralization extent that poly(amido amine) (PAMAM) induces quantitatively, and select the most effective kind of PAMAM with a certain terminal group for dentin remineralization, both for the first time.
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Affiliation(s)
- Siying Tao
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- Department of Cariology and Endodontics
- West China Hospital of Stomatology
- Sichuan University
| | - Menglin Fan
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- Department of Cariology and Endodontics
- West China Hospital of Stomatology
- Sichuan University
| | - Hockin H. K. Xu
- Department of Advanced Oral Sciences and Therapeutics
- University of Maryland School of Dentistry
- Baltimore
- USA
- Center for Stem Cell Biology & Regenerative Medicine
| | - Jianshu Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Libang He
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- Department of Cariology and Endodontics
- West China Hospital of Stomatology
- Sichuan University
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- Department of Cariology and Endodontics
- West China Hospital of Stomatology
- Sichuan University
| | - Kunneng Liang
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- Department of Cariology and Endodontics
- West China Hospital of Stomatology
- Sichuan University
| | - Jiyao Li
- State Key Laboratory of Oral Diseases
- National Clinical Research Center for Oral Diseases
- Department of Cariology and Endodontics
- West China Hospital of Stomatology
- Sichuan University
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Abstract
Regenerative endodontic treatment has yielded excellent clinical outcomes, but only several animal studies have shown the robust regeneration of the pulp-dentin complex. The biological molecules, if properly delivered, can enkindle regeneration of dental pulp and dentin rather than repair with tissues of periodontal origin. This review details the biological significance of regenerating the pulp-dentin complex, the effects of biological cues in pulp regeneration, and the delivery strategies of biological molecules to enhance the outcomes of regenerative endodontic therapy.
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Affiliation(s)
- Sahng G Kim
- Division of Endodontics, College of Dental Medicine, Columbia University, 630 West 168 Street, PH7Stem128, New York, NY 10032, USA.
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31
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Qin C, Baba O, Butler WT. Post-translational Modifications of SIBLING Proteins and Their Roles in Osteogenesis and Dentinogenesis. ACTA ACUST UNITED AC 2016; 15:126-36. [PMID: 15187031 DOI: 10.1177/154411130401500302] [Citation(s) in RCA: 344] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The extracellular matrix (ECM) of bone and dentin contains several non-collagenous proteins. One category of non-collagenous protein is termed the SIBLING (Small Integrin-Binding LIgand, N-linked Glycoprotein) family, that includes osteopontin (OPN), bone sialoprotein (BSP), dentin matrix protein 1 (DMP1), dentin sialophosphoprotein (DSPP), and matrix extracellular phosphoglycoprotein (MEPE). These polyanionic SIBLING proteins are believed to play key biological roles in the mineralization of bone and dentin. Although the specific mechanisms involved in controlling bone and dentin formation are still unknown, it is clear that some functions of the SIBLING family members are dependent on the nature and extent of post-translational modifications (PTMs), such as phosphorylation, glycosylation, and proteolytic processing, since these PTMs would have significant effects on their structure. OPN and BSP are present in the ECM of bone and dentin as full-length forms, whereas amino acid sequencing indicates that DMP1 and DSPP exist as proteolytically processed fragments that result from scission of X-Asp bonds. We hypothesized that the processing of DMP1 and DSPP is catalyzed by the PHEX enzyme, since this protein, an endopeptidase that is predominantly expressed in bone and tooth, has a strong preference for cleavage at the NH2-terminus of aspartyl residue. We envision that the proteolytic processing of DMP1 and DSPP may be an activation process that plays a significant, crucial role in osteogenesis and dentinogenesis, and that a failure in this processing would cause defective mineralization in bone and dentin, as observed in X-linked hypophosphatemic rickets.
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Affiliation(s)
- C Qin
- The Department of Endodontics and Periodontics, University of Texas-Houston Health Science Center, Dental Branch, Houston, TX 77030, USA.
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32
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Arora A, Katti DS. Understanding the influence of phosphorylation and polysialylation of gelatin on mineralization and osteogenic differentiation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 65:9-18. [DOI: 10.1016/j.msec.2016.04.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 03/29/2016] [Accepted: 04/06/2016] [Indexed: 11/28/2022]
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Choi BD, Lee SY, Jeong SJ, Lim DS, Cha HJ, Chung WG, Jeong MJ. Secretory leukocyte protease inhibitor promotes differentiation and mineralization of MC3T3-E1 preosteoblasts on a titanium surface. Mol Med Rep 2016; 14:1241-6. [PMID: 27279420 DOI: 10.3892/mmr.2016.5381] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 03/08/2016] [Indexed: 11/06/2022] Open
Abstract
Mineralized bone matrix constituted with collagenous and non-collagenous proteins was synthesized by osteoblasts differentiated from mesenchymal stem cells. Secretory leukocyte protease inhibitor (SLPI), a serine protease inhibitor, promotes cell migration and proliferation, and suppresses the inflammatory response. Recent studies reported that SLPI regulates the formation of dentin and mineralization by odontoblasts and increases the adhesion and viability of preosteoblasts on a titanium (Ti) surface. Ti and its alloys are widely used implant materials in artificial joints and dental implants owing to their biocompatibility with bone. Therefore, this study aimed to examine whether SLPI can be an effective molecule in promoting differentiation and mineralization of osteoblasts on a Ti surface. In order to investigate the effects of SLPI on osteoblasts, an MTT assay, PCR, western blotting and Alizarin Red S staining were performed. The results demonstrated that SLPI increased the viability of osteoblasts during differentiation on Ti discs compared with that of the control. The expression levels of SLPI mRNA and protein were higher than that of the control after treatment of osteoblasts with SLPI on Ti discs during differentiation. SLPI increased the formation of mineralized nodules and mRNA expression of alkaline phosphatase, dentin sialophosphoprotein, dentin matrix protein 1, bone sialoprotein, and collagen I in osteoblasts on Ti discs compared with that of the control. In conclusion, SLPI increases the viability and promotes the differentiation and mineralization of osteoblasts on Ti surfaces, suggesting that SLPI is an effective molecule for achieving successful osseointegration between osteoblasts and a Ti surface.
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Affiliation(s)
- Baik-Dong Choi
- Department of Oral Histology and Developmental Biology, School of Dentistry, Chosun University, Gwangju 501‑759, Republic of Korea
| | - Seung-Yeon Lee
- Department of Oral Histology and Developmental Biology, School of Dentistry, Chosun University, Gwangju 501‑759, Republic of Korea
| | - Soon-Jeong Jeong
- Department of Dental Hygiene, Youngsan University, Yangsan, Gyeongsangnam‑do 626‑790, Republic of Korea
| | - Do-Seon Lim
- Department of Dental Hygiene, Eulji University, Seongnam, Gyeonggi 461‑713, Republic of Korea
| | - Hee-Jae Cha
- Department of Parasitology and Genetics, College of Medicine, Kosin University, Busan 602‑072, Republic of Korea
| | - Won-Gyun Chung
- Department of Dental Hygiene, Wonju College of Medicine, Yonsei University, Wonju, Gangwon 220‑701, Republic of Korea
| | - Moon-Jin Jeong
- Department of Oral Histology and Developmental Biology, School of Dentistry, Chosun University, Gwangju 501‑759, Republic of Korea
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34
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Calcium binding characteristics and structural changes of phosvitin. J Inorg Biochem 2016; 159:76-81. [DOI: 10.1016/j.jinorgbio.2016.02.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 01/11/2016] [Accepted: 02/10/2016] [Indexed: 11/18/2022]
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35
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Melcher M, Facey SJ, Henkes TM, Subkowski T, Hauer B. Accelerated Nucleation of Hydroxyapatite Using an Engineered Hydrophobin Fusion Protein. Biomacromolecules 2016; 17:1716-26. [PMID: 27010648 DOI: 10.1021/acs.biomac.6b00135] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Calcium phosphate mineralization is of particular interest in dental repair. A biomimetic approach using proteins or peptides is a highly promising way to reconstruct eroded teeth. In this study, the screening of several proteins is described for their binding and nucleating activities toward hydroxyapatite. Out of 27 tested candidates, only two hydrophobin fusion proteins showed binding abilities to hydroxyapatite in a mouthwash formulation and an increased nucleation in artificial saliva. Using a semirational approach, one of the two candidates (DEWA_5), a fusion protein consisting of a truncated section of the Bacillus subtilis synthase YaaD, the Aspergillus nidulans hydrophobin DEWA, and the rationally designed peptide P11-4 described in the literature, could be further engineered toward a faster mineral formation. The variants DEWA_5a (40aaYaaD-SDSDSD-DEWA) and DEWA_5b (40aaYaaD-RDRDRD-DEWA) were able to enhance the nucleation activity without losing the ability to form hydroxyapatite. In the case of variant DEWA_5b, an additional increase in the binding toward hydroxyapatite could be achieved. Especially with the variant DEWA_5a, the protein engineering of the rationally designed peptide sequence resulted in a resemblance of an amino acid motif that is found in nature. The engineered peptide resembles the amino acid motif in dentin phosphoprotein, one of the major proteins involved in dentinogenesis.
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Affiliation(s)
- Melanie Melcher
- Institute of Technical Biochemistry, University of Stuttgart , Allmandring 31, 70569 Stuttgart, Germany
| | - Sandra J Facey
- Institute of Technical Biochemistry, University of Stuttgart , Allmandring 31, 70569 Stuttgart, Germany
| | - Thorsten M Henkes
- Institute of Technical Biochemistry, University of Stuttgart , Allmandring 31, 70569 Stuttgart, Germany
| | | | - Bernhard Hauer
- Institute of Technical Biochemistry, University of Stuttgart , Allmandring 31, 70569 Stuttgart, Germany
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36
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Romero MJRH, Nakashima S, Nikaido T, Sadr A, Tagami J. In vitro dentine remineralization with a potential salivary phosphoprotein homologue. Arch Oral Biol 2016; 68:35-42. [PMID: 27054701 DOI: 10.1016/j.archoralbio.2016.03.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 03/21/2016] [Accepted: 03/22/2016] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Advantages of introducing a salivary phosphoprotein homologue under standardized in vitro conditions to simulate the mineral-stabilizing properties of saliva have been proposed. This study longitudinally investigates the effects of casein, incorporated as a potential salivary phosphoprotein homologue in artificial saliva (AS) solutions with/without fluoride (F) on in vitro dentine lesion remineralization. DESIGN Thin sections of bovine root dentine were demineralized and allocated randomly into 6 groups (n=18) having equivalent mineral loss (ΔZ) after transverse microradiography (TMR). The specimens were remineralized using AS solutions containing casein 0μg/ml, F 0ppm (C0-F0); casein 0μg/ml, F 1ppm (C0-F1); casein 10μg/ml, F 0ppm (C10-F0); casein 10μg/ml, F 1ppm (C10-F1); casein 100μg/ml, F 0ppm (C100-F0) or casein 100μg/ml, F 1ppm (C100-F1) for 28days with TMR taken every 7 days. RESULTS Surface mineral precipitation, evident in group C0-F1, was apparently inhibited in groups with casein incorporation. Repeated measures ANOVA with Bonferroni correction revealed higher ΔZ for non-F and non-casein groups than for their counterparts (p<0.001). Subsequent multiple comparisons showed that mineral gain was higher (p<0.001) with 10μg/ml casein than with 100μg/ml when F was present in the earlier stages of remineralization, with both groups achieving almost complete remineralization after 28 days. CONCLUSION Casein is a potential salivary phosphoprotein homologue that could be employed for in vitro dentine remineralization studies. Concentration related effects may be clinically significant and thus must be further examined.
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Affiliation(s)
- Maria Jacinta Rosario H Romero
- Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; University of the Philippines Manila College of Dentistry, Pedro Gil corner Taft Avenue, Manila 1000, Philippines.
| | - Syozi Nakashima
- Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.
| | - Toru Nikaido
- Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.
| | - Alireza Sadr
- International Exchange Center, Tokyo Medical and Dental University,1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; Department of Restorative Dentistry, University of Washington School of Dentistry, 1959 NE Pacific Street, Box 357456 Seattle, WA, USA.
| | - Junji Tagami
- Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.
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Zhang H, Liu P, Wang S, Liu C, Jani P, Lu Y, Qin C. Transgenic expression of dentin phosphoprotein inhibits skeletal development. Eur J Histochem 2016; 60:2587. [PMID: 26972716 PMCID: PMC4800252 DOI: 10.4081/ejh.2016.2587] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 02/05/2016] [Accepted: 02/08/2016] [Indexed: 11/23/2022] Open
Abstract
Dentin sialophosphoprotein (DSPP) is proteolytically processed into an NH2-terminal fragment called dentin sialoprotein (DSP) and a COOH-terminal fragment known as dentin phosphoprotein (DPP). These two fragments are believed to perform distinct roles in formation of bone and dentin. To investigate the functions of DPP in skeletal development, we generated transgenic mice to overexpress hemagglutinin (HA)-tagged DPP under the control of a 3.6 kb type I collagen (Col1a1) promoter (designated as Col1a1-HA-DPP). The Col1a1-HA-DPP transgenic mice were significantly smaller by weight, had smaller skeletons and shorter long bones than their wild type littermates, as demonstrated by X-ray radiography. They displayed reduced trabecular bone formation and narrower zones of proliferative and hypertrophic chondrocytes in the growth plates of the long bones. Histological analyses showed that the transgenic mice had reduced cell proliferation in the proliferating zone, but lacked obvious defects in the chondrocyte differentiation. In addition, the transgenic mice with a high level of transgene expression developed spontaneous long bone fractures. In conclusion, overexpressing DPP inhibited skeletal development, suggesting that the balanced actions between the NH2- and COOH-terminal fragments of DSPP may be required for normal skeletal development.
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Affiliation(s)
- H Zhang
- Texas A&M University, Baylor College of Dentistry.
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Jani PH, Gibson MP, Liu C, Zhang H, Wang X, Lu Y, Qin C. Transgenic expression of Dspp partially rescued the long bone defects of Dmp1-null mice. Matrix Biol 2015; 52-54:95-112. [PMID: 26686820 DOI: 10.1016/j.matbio.2015.12.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 12/06/2015] [Accepted: 12/08/2015] [Indexed: 01/09/2023]
Abstract
Dentin matrix protein 1 (DMP1) and dentin sialophosphoprotein (DSPP) belong to the Small Integrin-Binding Ligand N-linked Glycoprotein (SIBLING) family. In addition to the features common to all SIBLING members, DMP1 and DSPP share several unique similarities in chemical structure, proteolytic activation and tissue localization. Mutations in, or deletion of DMP1, cause autosomal recessive hypophosphatemic rickets along with dental defects; DSPP mutations or its ablation are associated with dentinogenesis imperfecta. While the roles and functional mechanisms of DMP1 in osteogenesis have been extensively studied, those of DSPP in long bones have been studied only to a limited extent. Previous studies by our group revealed that transgenic expression of Dspp completely rescued the dentin defects of Dmp1-null (Dmp1(-/-)) mice. In this investigation, we assessed the effects of transgenic Dspp on osteogenesis by analyzing the formation and mineralization of the long bones in Dmp1(-/-) mice that expresses a transgene encoding full-length DSPP driven by a 3.6-kb rat Col1a1 promoter (referred as "Dmp1(-/-);Dspp-Tg mice"). We characterized the long bones of the Dmp1(-/-);Dspp-Tg mice at different ages and compared them with those from Dmp1(-/-) and Dmp1(+/-) (normal control) mice. Our analyses showed that the long bones of Dmp1(-/-);Dspp-Tg mice had a significant increase in cortical bone thickness, bone volume and mineral density along with a remarkable restoration of trabecular thickness compared to those of the Dmp1(-/-) mice. The long bones of Dmp1(-/-);Dspp-Tg mice underwent a dramatic reduction in the amount of osteoid, significant improvement of the collagen fibrillar network, and better organization of the lacunocanalicular system, compared to the Dmp1(-/-) mice. The elevated levels of biglycan, bone sialoprotein and osteopontin in Dmp1(-/-) mice were also noticeably corrected by the transgenic expression of Dspp. These findings suggest that DSPP and DMP1 may function synergistically within the complex milieus of bone matrices.
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Affiliation(s)
- Priyam H Jani
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, TX 75246, USA
| | - Monica P Gibson
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, TX 75246, USA
| | - Chao Liu
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, TX 75246, USA
| | - Hua Zhang
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, TX 75246, USA
| | - Xiaofang Wang
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, TX 75246, USA
| | - Yongbo Lu
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, TX 75246, USA
| | - Chunlin Qin
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, TX 75246, USA.
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Yang X, Yan W, Tian Y, Ma P, Opperman LA, Wang X. Family with sequence similarity member 20C is the primary but not the only kinase for the small-integrin-binding ligand N-linked glycoproteins in bone. FASEB J 2015; 30:121-8. [PMID: 26324849 DOI: 10.1096/fj.15-273607] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 08/17/2015] [Indexed: 12/27/2022]
Abstract
Recent studies have identified family with sequence similarity member 20C (FAM20C) as a kinase that phosphorylates the Ser in Ser-X-Glu/phospho-Ser (pSer) motifs in the small-integrin-binding ligand N-linked glycoproteins (SIBLINGs). There is no in vivo evidence that validates this finding, and it is unclear whether FAM20C is the only kinase for SIBLINGs. We extracted bone noncollagenous proteins (NCPs) from Fam20C-knockout (KO) mice and analyzed the phosphorylation levels. The total NCPs were separated into osteopontin-, bone sialoprotein-, and dentin matrix protein-1-enriched fractions by anion-exchange chromatography and analyzed by SDS-PAGE, native PAGE, and Western immunoblot analysis. The NCP phosphorylation level in the KO mice was lower than that in the wild-type (WT). On the native gel, the SIBLINGs from KO mice showed a lower migration rate (Mr) than those from the WT. Calf intestine phosphatase treatment shifted SIBLINGs from the WT mice to the level adjacent to the KO, but failed to shift the latter, suggesting a phosphorylation loss of SIBLINGs in the KO mice. Mass spectrometry identified less pSers in the SIBLINGs from the KO mice [including the region of the acidic Ser- and aspartate-rich motif (ASARM) peptides]. In an intriguing finding, several pSers in the Ser-X-Glu motifs in the KO mice maintained their phosphorylation, whereas several others in non-Ser-X-Glu motifs did not. Phospho-Tyrs and phospho-Thrs in the SIBLINGs did not appear to be associated with FAM20C. Our results indicate that FAM20C is the primary, but not the only, kinase for the SIBLINGs.-Yang, X., Yan, W., Tian, Y., Ma, P., Opperman, L. A., Wang, X. Family with sequence similarity member 20C is the primary but not the only kinase for the small-integrin-binding ligand N-linked glycoproteins in bone.
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Affiliation(s)
- Xiudong Yang
- *Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; Southern Medical University, Guangdong, People's Republic of China; Sichuan University, Sichuan, People's Republic of China; and Capital Medical University, Beijing, People's Republic of China
| | - Wenjuan Yan
- *Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; Southern Medical University, Guangdong, People's Republic of China; Sichuan University, Sichuan, People's Republic of China; and Capital Medical University, Beijing, People's Republic of China
| | - Ye Tian
- *Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; Southern Medical University, Guangdong, People's Republic of China; Sichuan University, Sichuan, People's Republic of China; and Capital Medical University, Beijing, People's Republic of China
| | - Pan Ma
- *Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; Southern Medical University, Guangdong, People's Republic of China; Sichuan University, Sichuan, People's Republic of China; and Capital Medical University, Beijing, People's Republic of China
| | - Lynne A Opperman
- *Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; Southern Medical University, Guangdong, People's Republic of China; Sichuan University, Sichuan, People's Republic of China; and Capital Medical University, Beijing, People's Republic of China
| | - Xiaofang Wang
- *Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; Southern Medical University, Guangdong, People's Republic of China; Sichuan University, Sichuan, People's Republic of China; and Capital Medical University, Beijing, People's Republic of China
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Liu X, Zeng S, Dong S, Jin C, Li J. A Novel Matrix Protein Hic31 from the Prismatic Layer of Hyriopsis Cumingii Displays a Collagen-Like Structure. PLoS One 2015; 10:e0135123. [PMID: 26262686 PMCID: PMC4532409 DOI: 10.1371/journal.pone.0135123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 07/18/2015] [Indexed: 12/22/2022] Open
Abstract
In this study, we clone and characterize a novel matrix protein, hic31, from the mantle of Hyriopsis cumingii. The amino acid composition of hic31 consists of a high proportion of Glycine residues (26.67%). Tissue expression detection by RT-PCR indicates that hic31 is expressed specifically at the mantle edge. In situ hybridization results reveals strong signals from the dorsal epithelial cells of the outer fold at the mantle edge, and weak signals from inner epithelial cells of the same fold, indicating that hic31 is a prismatic-layer matrix protein. Although BLASTP results identify no shared homology with other shell-matrix proteins or any other known proteins, the hic31 tertiary structure is similar to that of collagen I, alpha 1 and alpha 2. It has been well proved that collagen forms the basic organic frameworks in way of collagen fibrils and minerals present within or outside of these fibrils. Therefore, hic31 might be a framework-matrix protein involved in the prismatic-layer biomineralization. Besides, the gene expression of hic31 increase in the early stages of pearl sac development, indicating that hic31 may play important roles in biomineralization of the pearl prismatic layer.
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Affiliation(s)
- Xiaojun Liu
- Key Laboratory of Freshwater Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Agriculture, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture (ZF1206), Shanghai Ocean University, Shanghai, China
- Shanghai University Knowledge Service Platform, Shanghai Ocean University Aquatic Animal Breeding Center (ZF1206), Shanghai Ocean University, Shanghai, China
| | - Shimei Zeng
- Key Laboratory of Freshwater Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Agriculture, Shanghai, China
| | - Shaojian Dong
- Key Laboratory of Freshwater Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Agriculture, Shanghai, China
| | - Can Jin
- Key Laboratory of Freshwater Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Agriculture, Shanghai, China
| | - Jiale Li
- Key Laboratory of Freshwater Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Agriculture, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture (ZF1206), Shanghai Ocean University, Shanghai, China
- Shanghai University Knowledge Service Platform, Shanghai Ocean University Aquatic Animal Breeding Center (ZF1206), Shanghai Ocean University, Shanghai, China
- E-Institute of Shanghai Universities, Shanghai Ocean University, Shanghai, China
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Liang K, Gao Y, Li J, Liao Y, Xiao S, Zhou X, Li J. Biomimetic mineralization of collagen fibrils induced by amine-terminated PAMAM dendrimers--PAMAM dendrimers for remineralization. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 26:963-74. [PMID: 26140519 DOI: 10.1080/09205063.2015.1068606] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Achieving biomimetic mineralization of collagen fibrils by mimicking the role of non-collagenous proteins (NCPs) with biomimetic analogs is of great interest in the fields of material science and stomatology. Amine-terminated PAMAM dendrimer (PAMAM-NH2), which possesses a highly ordered architecture and many calcium coordination sites, may be a desirable template for simulating NCPs to induce mineralization of collagen fibrils. In this study, we focused on the ability of PAMAM-NH2 to mineralize collagen fibrils. DESIGN Type-I collagen fibrils were reconstituted over 400-mesh formvar-and-carbon-coated gold grids and treated with a third-generation PAMAM-NH2 (G3-PAMAM-NH2) solution. The treated collagen fibrils were immersed in artificial saliva for different lengths of time. The morphologies of the mineralized reconstituted type-I collagen fibrils were characterized by transmission electron microscopy. RESULTS No obvious mineralized collagen fibrils were detected in the control group. On the contrary, collagen fibrils were heavily mineralized in the experimental group. Most importantly, intrafibrillar mineralization was achieved within the reconstituted type-I collagen fibrils. CONCLUSIONS In this study, we successfully induced biomimetic mineralization within type-I collagen fibrils using G3-PAMAM-NH2. This strategy may serve as a potential therapeutic technique for restoring completely demineralized collagenous mineralized tissues.
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Affiliation(s)
- Kunneng Liang
- a State Key Laboratory of Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610041 , China
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Hu C, Zhang L, Wei M. Development of Biomimetic Scaffolds with Both Intrafibrillar and Extrafibrillar Mineralization. ACS Biomater Sci Eng 2015; 1:669-676. [PMID: 33435090 DOI: 10.1021/acsbiomaterials.5b00088] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Bone is an organic-inorganic hierarchical biocomposite. Its basic building block is mineralized collagen fibers with both intrafibrillar and extrafibrillar mineralization, which is believed to be regulated by noncollagenous proteins (NCPs) with polyanionic domains. In this study, collagen fibrils with both intrafibrillar and extrafibrillar mineralization were successfully prepared and the mechanism of biomineralization was proposed. Building on this success, a unique biomimetic lamellar scaffold composed of collagen fibrils with both intrafibrillar and extrafibrillar mineralization was fabricated using a combination of self-compression and unidirectional freeze-drying approach. To achieve intrafibrillar mineralization, we used poly(acrylic acid) (PAA) to sequester calcium and phosphate ions to form fluidic PAA-amorphous calcium phosphate (PAA-ACP) nanoprecursors. At the presence of sodium tripolyphosphate (TPP), PAA-ACP nanoprecursors were modulated to orderly deposit within the gap zone of collagen fibrils. The effect of PAA concentration on the intrafibrillar and extrafibrillar mineralization of reconstituted collagen fibrils was investigated. It was found that with the decrease in PAA concentration, the inhibitory effect of PAA on mineralization and the stability of ACP nanoprecursors decreased. As a result, more minerals were deposited both within and on the surface of the collagen fibrils. Moreover, with the ability to reproduce biomineralization of collagen fibrils, it allowed us to fabricate biomimetic hierarchical collagen/hydroxyapatite scaffolds composed of both intrafibrillar and extrafibrillar minerals using a bottom-up approach. This technique renders a promising biomimetic scaffold, which will be suitable for bone repair and regeneration.
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Affiliation(s)
- Changmin Hu
- Department of Materials Science and Engineering and ‡Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Lichun Zhang
- Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Mei Wei
- Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
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Lausch AJ, Sone ED. A Top-down Approach to Elucidate the Role of Matrix-Bound Phosphoproteins in Control of Collagen Biomineralization. Biomacromolecules 2015; 16:1938-47. [DOI: 10.1021/acs.biomac.5b00287] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander J. Lausch
- Institute of Biomaterials and Biomedical Engineering, ‡Department of Materials Science & Engineering, and §Faculty of Dentistry, University of Toronto, Toronto, Ontario M5S 3G9, Canada
| | - Eli D. Sone
- Institute of Biomaterials and Biomedical Engineering, ‡Department of Materials Science & Engineering, and §Faculty of Dentistry, University of Toronto, Toronto, Ontario M5S 3G9, Canada
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Zhang H, Yang J, Liang K, Li J, He L, Yang X, Peng S, Chen X, Ding C, Li J. Effective dentin restorative material based on phosphate-terminated dendrimer as artificial protein. Colloids Surf B Biointerfaces 2015; 128:304-314. [DOI: 10.1016/j.colsurfb.2015.01.058] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 01/20/2015] [Accepted: 01/31/2015] [Indexed: 01/01/2023]
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Tjäderhane L, Buzalaf MAR, Carrilho M, Chaussain C. Matrix metalloproteinases and other matrix proteinases in relation to cariology: the era of 'dentin degradomics'. Caries Res 2015; 49:193-208. [PMID: 25661522 DOI: 10.1159/000363582] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Accepted: 05/07/2014] [Indexed: 11/19/2022] Open
Abstract
Dentin organic matrix, with type I collagen as the main component, is exposed after demineralization in dentinal caries, erosion or acidic conditioning during adhesive composite restorative treatment. This exposed matrix is prone to slow hydrolytic degradation by host collagenolytic enzymes, matrix metalloproteinases (MMPs) and cysteine cathepsins. Here we review the recent findings demonstrating that inhibition of salivary or dentin endogenous collagenolytic enzymes may provide preventive means against progression of caries or erosion, just as they have been shown to retain the integrity and improve the longevity of resin composite filling bonding to dentin. This paper also presents the case that the organic matrix in caries-affected dentin may not be preserved as intact as previously considered. In partially demineralized dentin, MMPs and cysteine cathepsins with the ability to cleave off the terminal non-helical ends of collagen molecules (telopeptides) may lead to the gradual loss of intramolecular gap areas. This would seriously compromise the matrix ability for intrafibrillar remineralization, which is considered essential in restoring the dentin's mechanical properties. More detailed data of the enzymes responsible and their detailed function in dentin-destructive conditions may not only help to find new and better preventive means, but better preservation of demineralized dentin collagenous matrix may also facilitate true biological remineralization for the better restoration of tooth structural and mechanical integrity and mechanical properties.
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Affiliation(s)
- Leo Tjäderhane
- Institute of Dentistry, University of Oulu, Oulu, Finland
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Wang T, Yang S, Wang L, Feng H. Use of multifunctional phosphorylated PAMAM dendrimers for dentin biomimetic remineralization and dentinal tubule occlusion. RSC Adv 2015. [DOI: 10.1039/c4ra14744h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Phosphorylated poly(amidoamine) dendrimers can induce biomimetic remineralization of demineralized dentin as analogs of non-collagenous proteins in the presence of polyacrylic acid, an amorphous calcium phosphate stabilizing agent.
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Affiliation(s)
- Tianda Wang
- Department of Prosthodontics
- Peking University School and Hospital of Stomatology
- Beijing
- China
| | - Sheng Yang
- Department of Prosthodontics
- Peking University School and Hospital of Stomatology
- Beijing
- China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences
| | - Lei Wang
- Department of Prosthodontics
- Peking University School and Hospital of Stomatology
- Beijing
- China
| | - Hailan Feng
- Department of Prosthodontics
- Peking University School and Hospital of Stomatology
- Beijing
- China
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47
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Gibson MP, Jani P, Wang X, Lu Y, Qin C. Overexpressing the NH 2-terminal fragment of dentin sialophosphoprotein (DSPP) aggravates the periodontal defects in Dspp knockout mice. J Oral Biosci 2014; 56:143-148. [PMID: 25386098 DOI: 10.1016/j.job.2014.06.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Previous studies have shown that dentin sialophosphoprotein (DSPP) is not only essential to the formation and mineralization of dentin but also plays an important role in forming and maintaining a healthy periodontium. Under physiological conditions, DSPP is proteolytically processed into the NH2-terminal and COOH-terminal fragments, and these fragments are believed to perform different functions in the mineralized tissues. Previous studies in our group have demonstrated that the NH2-terminal fragment of DSPP inhibits the formation and mineralization of dentin, while the role of this fragment in periodontium is unclear. METHODS We analyzed the periodontal tissues of the transgenic mice overexpressing the NH2-terminal fragment of DSPP in the Dspp knockout background (referred to as "Dspp KO/DSP Tg" mice), in comparison with wild type mice and Dspp knockout mice. The approaches used in this study included histology, micro-computed tomography, back scattered scanning electron microscopy and resin-casted scanning electron microscopy. RESULTS Dspp KO/DSP Tg mice exhibited a greater reduction of the alveolar bone, more remarkably altered canalicular systems around the osteocytes, less cementum, more radical migration of the epithelial attachment towards the apical direction, and more severe inflammation in molar furcation region, than in the Dspp knockout mice. CONCLUSION Overexpressing the NH2-terminal fragment of DSPP worsened the periodontal defects in Dspp knockout mice, indicating that the NH2-terminal fragment of DSPP may exert an inhibitory role in the formation and mineralization of hard tissues in the periodontium.
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Affiliation(s)
- Monica Prasad Gibson
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA
| | - Priyam Jani
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA
| | - Xiaofang Wang
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA
| | - Yongbo Lu
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA
| | - Chunlin Qin
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA
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de La Dure-Molla M, Philippe Fournier B, Berdal A. Isolated dentinogenesis imperfecta and dentin dysplasia: revision of the classification. Eur J Hum Genet 2014; 23:445-51. [PMID: 25118030 DOI: 10.1038/ejhg.2014.159] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 07/08/2014] [Accepted: 07/10/2014] [Indexed: 11/09/2022] Open
Abstract
Dentinogenesis imperfecta is an autosomal dominant disease characterized by severe hypomineralization of dentin and altered dentin structure. Dentin extra cellular matrix is composed of 90% of collagen type I and 10% of non-collagenous proteins among which dentin sialoprotein (DSP), dentin glycoprotein (DGP) and dentin phosphoprotein (DPP) are crucial in dentinogenesis. These proteins are encoded by a single gene: dentin sialophosphoprotein (DSPP) and undergo several post-translational modifications such as glycosylation and phosphorylation to contribute and to control mineralization. Human mutations of this DSPP gene are responsible for three isolated dentinal diseases classified by Shield in 1973: type II and III dentinogenesis imperfecta and type II dentin dysplasia. Shield classification was based on clinical phenotypes observed in patient. Genetics results show now that these three diseases are a severity variation of the same pathology. So this review aims to revise and to propose a new classification of the isolated forms of DI to simplify diagnosis for practitioners.
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Affiliation(s)
- Muriel de La Dure-Molla
- 1] Centre de Recherche des Cordeliers, INSERM UMRS 872, Laboratory of Molecular Oral Pathophysiology, Paris, France [2] Paris-Descartes University, Paris, France [3] The Pierre-and-Marie-Curie University, Paris, France [4] Paris-Diderot, School of Dentistry, Paris, France [5] Reference Center for Dental Rare Disease, MAFACE Rothschild Hospital, AP-HP, Paris, France
| | - Benjamin Philippe Fournier
- 1] Centre de Recherche des Cordeliers, INSERM UMRS 872, Laboratory of Molecular Oral Pathophysiology, Paris, France [2] Paris-Descartes University, Paris, France [3] The Pierre-and-Marie-Curie University, Paris, France [4] Paris-Diderot, School of Dentistry, Paris, France [5] Reference Center for Dental Rare Disease, MAFACE Rothschild Hospital, AP-HP, Paris, France
| | - Ariane Berdal
- 1] Centre de Recherche des Cordeliers, INSERM UMRS 872, Laboratory of Molecular Oral Pathophysiology, Paris, France [2] Paris-Descartes University, Paris, France [3] The Pierre-and-Marie-Curie University, Paris, France [4] Paris-Diderot, School of Dentistry, Paris, France [5] Reference Center for Dental Rare Disease, MAFACE Rothschild Hospital, AP-HP, Paris, France
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Induction of reparative dentin formation on exposed dental pulp by dentin phosphophoryn/collagen composite. BIOMED RESEARCH INTERNATIONAL 2014; 2014:745139. [PMID: 24804241 PMCID: PMC3997146 DOI: 10.1155/2014/745139] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 02/25/2014] [Indexed: 11/25/2022]
Abstract
The ultimate goal of vital pulp therapy is to regenerate rapidly dentin possessing an excellent quality using a biocompatible, bioactive agent. Dentin phosphophoryn (DPP), the most abundant noncollagenous polyanionic protein in dentin, cross-linked to atelocollagen fibrils was applied to direct pulp capping in rats. After 1, 2, and 3 weeks, the teeth applied were examined on the induction of reparative dentin formation and the response of pulp tissue, compared to calcium hydroxide-based agent conventionally used. The reparative dentin formation induced by DPP/collagen composite was more rapid than by calcium hydroxide. In the morphometrical analysis, the formation rate of reparative dentin by DPP/collagen composite was approximately the same as that by calcium hydroxide at 3 weeks. Nevertheless, the compactness of reparative dentin formed by DPP/collagen composite was much superior to what resulted from calcium hydroxide. Also, DPP/collagen composite showed high covering ability of exposed pulp. Moreover, DPP/collagen composite led only to slight pulp inflammation at the beginning whereas calcium hydroxide formed necrotic layer adjacent to the material and induced severe inflammation in pulp tissue at 1 week. The present study demonstrates a potential for DPP/collagen composite as a rapid biocompatible inducer for the formation of reparative dentin of excellent quality in rats.
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50
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Early dentine remineralisation: Morpho-mechanical assessment. J Dent 2014; 42:384-94. [DOI: 10.1016/j.jdent.2014.01.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/14/2014] [Accepted: 01/26/2014] [Indexed: 11/18/2022] Open
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