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Liu H, Jiao Y, Forouzanfar T, Wu G, Guo R, Lin H. High-strength double-network silk fibroin based hydrogel loaded with Icariin and BMSCs to inhibit osteoclasts and promote osteogenic differentiation to enhance bone repair. BIOMATERIALS ADVANCES 2024; 160:213856. [PMID: 38640877 DOI: 10.1016/j.bioadv.2024.213856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/02/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
Large bone defects cause significant clinical challenges due to the lack of optimal grafts for effective regeneration. The tissue engineering way that requires the combination of biomaterials scaffold, stem cells and proper bioactive factors is a prospective method for large bone repair. Here, we synthesized a three-arm host-guest supramolecule (HGSM) to covalently crosslinking with the naturally derived polymer methacrylated silk fibroin (SFMA). The combination of HGSM and SFMA can form a high strength double-crosslinked hydrogel HGSFMA, that serve as the hydrogel scaffold for bone marrow mesenchymal stem cells (BMSCs) growing. Icariin (ICA) loaded in the HGSFMA hydrogel can promote the osteogenesis efficiency of BMSCs and inhibit the osteoclasts differentiation. Our findings demonstrated that the HGSFMA/ICA hydrogel effectively promoted the in vitro adhesion, proliferation, and osteogenic differentiation of BMSCs. Rat femoral defects model show that this hydrogel can completely repair femoral damage within 4 weeks and significantly promote the secretion of osteogenesis-related proteins. In summary, we have prepared an effective biomimetic bone carrier, offering a novel strategy for bone regeneration and the treatment of large-scale bone defects.
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Affiliation(s)
- Huiling Liu
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Amsterdam, De Boelelaan 1117, the Netherlands
| | - Yang Jiao
- Department of Stomatology, the Seventh Medical Center of PLA General Hospital, No. 5, Nanmencang, Dongsishitiao Street, Dongcheng District, Beijing 100700, China
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Amsterdam, De Boelelaan 1117, the Netherlands
| | - Gang Wu
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Gustav Mahlerlaan, 3004, Amsterdam 1081LA, the Netherlands.
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
| | - Haiyan Lin
- Department of Implantology, Hangzhou Stomatology Hospital, Hangzhou 310006, China; Savid School of Stomatology, Hangzhou Medical College, Hangzhou 311399, China; Hangzhou Stomatology Hospital, Pinghai Road, Shangcheng District, Hangzhou 310006, China.
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Jahangirnezhad M, Mahmoudinezhad SS, Moradi M, Moradi K, Rohani A, Tayebi L. Bone Scaffold Materials in Periodontal and Tooth-supporting Tissue Regeneration: A Review. Curr Stem Cell Res Ther 2024; 19:449-460. [PMID: 36578254 DOI: 10.2174/1574888x18666221227142055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/23/2022] [Accepted: 09/28/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Periodontium is an important tooth-supporting tissue composed of both hard (alveolar bone and cementum) and soft (gingival and periodontal ligament) sections. Due to the multi-tissue architecture of periodontium, reconstruction of each part can be influenced by others. This review focuses on the bone section of the periodontium and presents the materials used in tissue engineering scaffolds for its reconstruction. MATERIALS AND METHODS The following databases (2015 to 2021) were electronically searched: ProQuest, EMBASE, SciFinder, MRS Online Proceedings Library, Medline, and Compendex. The search was limited to English-language publications and in vivo studies. RESULTS Eighty-three articles were found in primary searching. After applying the inclusion criteria, seventeen articles were incorporated into this study. CONCLUSION In complex periodontal defects, various types of scaffolds, including multilayered ones, have been used for the functional reconstruction of different parts of periodontium. While there are some multilayered scaffolds designed to regenerate alveolar bone/periodontal ligament/cementum tissues of periodontium in a hierarchically organized construct, no scaffold could so far consider all four tissues involved in a complete periodontal defect. The progress and material considerations in the regeneration of the bony part of periodontium are presented in this work to help investigators develop tissue engineering scaffolds suitable for complete periodontal regeneration.
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Affiliation(s)
- Mahmood Jahangirnezhad
- Department of Periodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sadaf Sadat Mahmoudinezhad
- Department of Periodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Melika Moradi
- Department of Periodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Kooshan Moradi
- Department of Periodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Rohani
- Department of Periodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Lobat Tayebi
- School of Dentistry, Marquette University, Milwaukee, WI, 53233, USA
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Jang S, Kim US, Lee S, Kim E, Jung HS, Shin SJ, Kang S, Chang I, Kim S. Biological Function and Potential Applications of Garcinol in Human Dental Pulp Stem Cells. J Endod 2023; 49:1652-1659. [PMID: 37657731 DOI: 10.1016/j.joen.2023.08.016] [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: 05/20/2023] [Revised: 08/18/2023] [Accepted: 08/26/2023] [Indexed: 09/03/2023]
Abstract
INTRODUCTION The regeneration of pulp tissue is crucial for true regenerative endodontic treatment, which requires a reduction in osteogenic differentiation. Garcinol, a histone acetyltransferase inhibitor, is a natural regulator that is known to suppress the osteogenic differentiation of dental pulp stem cells. In this study, the inhibitory effect of garcinol on the osteogenic differentiation of human dental pulp stem cells (hDPSCs) was evaluated using three-dimensional culture under in vitro and in vivo conditions. METHODS hDPSCs were obtained from caries-free third molars and cultured with 10 μM garcinol for 7 days in an ultra-low attachment plate. The cell stemness and expression of osteogenic differentiation-related genes were analyzed using reverse transcription-polymerase chain reaction and single-cell analysis. A transplantation experiment was performed in mice to investigate whether garcinol-treated hDPSCs showed restrained osteogenic differentiation. RESULTS hDPSCs cultured in the U-shaped ultra-low attachment plate showed the highest expression of stemness-related genes. Garcinol-treated hDPSCs demonstrated downregulation of osteogenic differentiation, with lower expression of bone sialoprotein, which is related to bone formation, and higher expression of dentin sialophosphoprotein, which is related to dentin formation. However, the garcinol-treated hDPSCs did not show any alterations in their stemness. Consistent results were observed in the transplantation experiment in mice. CONCLUSIONS Garcinol reduced the osteogenic differentiation of hDPSCs, which can contribute to true regenerative endodontic treatment.
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Affiliation(s)
- Sunmi Jang
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, South Korea
| | - Uk-Seong Kim
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, South Korea
| | - Sukjoon Lee
- Oral Science Research Center, Yonsei University College of Dentistry, Seoul, South Korea
| | - Euiseong Kim
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, South Korea
| | - Han-Sung Jung
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Taste Research Center, Oral Science Research Center, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Su-Jung Shin
- Department of Conservative Dentistry, Gangnam Severance Dental Hospital, Yonsei University College of Dentistry, Seoul, South Korea
| | - Sumi Kang
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, South Korea
| | - Insoon Chang
- Section of Endodontics, Division of Regenerative and Reconstructive Science, School of Dentistry, UCLA, Los Angeles, California
| | - Sunil Kim
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, South Korea.
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Mohamed FF, de Oliveira FA, Kinoshita Y, Yalamanchili RR, Eltilib LA, Andras NL, Narisawa S, Tani T, Chu EY, Millán JL, Foster BL. Dentoalveolar Alterations in an Adenine-Induced Chronic Kidney Disease Mouse Model. J Bone Miner Res 2023; 38:1192-1207. [PMID: 37191192 PMCID: PMC10524958 DOI: 10.1002/jbmr.4829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 05/02/2023] [Accepted: 05/08/2023] [Indexed: 05/17/2023]
Abstract
Chronic kidney disease (CKD) is characterized by kidney damage and loss of renal function. CKD mineral and bone disorder (CKD-MBD) describes the dysregulation of mineral homeostasis, including hyperphosphatemia and elevated parathyroid hormone (PTH) secretion, skeletal abnormalities, and vascular calcification. CKD-MBD impacts the oral cavity, with effects including salivary gland dysfunction, enamel hypoplasia and damage, increased dentin formation, decreased pulp volume, pulp calcifications, and altered jaw bones, contributing to clinical manifestations of periodontal disease and tooth loss. Underlying mechanisms are not fully understood, and CKD mouse models commonly require invasive procedures with high rates of infection and mortality. We aimed to characterize the dentoalveolar effects of an adenine diet (AD)-induced CKD (AD-CKD) mouse model. Eight-week-old C57BL/6J mice were provided either a normal phosphorus diet control (CTR) or adenine and high-phosphorus diet CKD to induce kidney failure. Mice were euthanized at 15 weeks old, and mandibles were collected for micro-computed tomography and histology. CKD mice exhibited kidney failure, hyperphosphatemia, and hyperparathyroidism in association with porous cortical bone in femurs. CKD mice showed a 30% decrease in molar enamel volume compared to CTR mice. Enamel wear was associated with reduced ductal components, ectopic calcifications, and altered osteopontin (OPN) deposition in submandibular salivary glands of CKD mice. Molar cusps in CKD mice were flattened, exposing dentin. Molar dentin/cementum volume increased 7% in CKD mice and pulp volume decreased. Histology revealed excessive reactionary dentin and altered pulp-dentin extracellular matrix proteins, including increased OPN. Mandibular bone volume fraction decreased 12% and bone mineral density decreased 9% in CKD versus CTR mice. Alveolar bone in CKD mice exhibited increased tissue-nonspecific alkaline phosphatase localization, OPN deposition, and greater osteoclast numbers. AD-CKD recapitulated key aspects reported in CKD patients and revealed new insights into CKD-associated oral defects. This model has potential for studying mechanisms of dentoalveolar defects or therapeutic interventions. © 2023 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Fatma F. Mohamed
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Flavia Amadeu de Oliveira
- Sanford Children’s Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Yuka Kinoshita
- Sanford Children’s Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Riti R. Yalamanchili
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Leena A. Eltilib
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Natalie L. Andras
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Sonoko Narisawa
- Sanford Children’s Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Takashi Tani
- Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Emily Y. Chu
- Department of General Dentistry, Operative Division, University of Maryland School of Dentistry, Baltimore, Maryland, USA
| | - José Luis Millán
- Sanford Children’s Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Brian L. Foster
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
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Xu K, Liu Q, Huang W, Chu Y, Fan W, Liu J, He Y, Huang F. Promotive Effect of FBXO32 on the Odontoblastic Differentiation of Human Dental Pulp Stem Cells. Int J Mol Sci 2023; 24:ijms24097708. [PMID: 37175415 PMCID: PMC10178205 DOI: 10.3390/ijms24097708] [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: 03/17/2023] [Revised: 04/11/2023] [Accepted: 04/15/2023] [Indexed: 05/15/2023] Open
Abstract
Odontoblastic differentiation of human dental pulp stem cells (hDPSCs) is crucial for the intricate formation and repair processes in dental pulp. Until now, the literature is not able to demonstrate the role of ubiquitination in the odontoblastic differentiation of hDPSCs. This study investigated the role of F-box-only protein 32 (FBXO32), an E3 ligase, in the odontoblastic differentiation of hDPSCs. The mRNA expression profile was obtained from ribonucleic acid sequencing (RNA-Seq) data and analyzed. Immunofluorescence and immunohistochemical staining identify the FBXO32 expression in human dental pulp and hDPSCs. Small-hairpin RNA lentivirus was used for FBXO32 knockdown and overexpression. Odontoblastic differentiation of hDPSCs was determined via alkaline phosphatase activity, Alizarin Red S staining, and mRNA and protein expression levels were detected using real-time quantitative polymerase chain reaction and Western blotting. Furthermore, subcutaneous transplantation in nude mice was performed to evaluate the role of FBXO32 in mineralization in vivo using histological analysis. FBXO32 expression was upregulated in the odontoblast differentiated hDPSCs as evidenced by RNA-Seq data analysis. FBXO32 was detected in hDPSCs and the odontoblast layer of the dental pulp. Increased FBXO32 expression in hDPSCs during odontoblastic differentiation was confirmed. Through lentivirus infection method, FBXO32 downregulation in hDPSCs attenuated odontoblastic differentiation in vitro and in vivo, whereas FBXO32 upregulation promoted the hDPSCs odontoblastic differentiation, without affecting proliferation and migration. This study demonstrated, for the first time, the promotive role of FBXO32 in regulating the odontoblastic differentiation of hDPSCs, thereby providing novel insights into the regulatory mechanisms during odontoblastic differentiation in hDPSCs.
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Affiliation(s)
- Ke Xu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Qin Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Wushuang Huang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yanhao Chu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Wenguo Fan
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Jiawei Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yifan He
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Fang Huang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
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Parsegian K. The BMP and FGF pathways reciprocally regulate odontoblast differentiation. Connect Tissue Res 2023; 64:53-63. [PMID: 35816114 PMCID: PMC9832171 DOI: 10.1080/03008207.2022.2094789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 06/22/2022] [Indexed: 02/03/2023]
Abstract
PURPOSE Previous studies demonstrated that the exposure of primary dental pulp (DP) cultures to fibroblast growth factor 2 (FGF2) between days 3-7 exerted significant and long-lasting stimulatory effects on odontoblast differentiation and Dspp expression. These effects involved the increased expression of components of bone morphogenetic protein (BMP) signaling and were reverted by a BMP inhibitor noggin. FGF2 also transiently stimulated osteoblast differentiation and the expression of Ibsp and Dmp1. The present study aimed to further explore interactions between BMP and FGF signaling during odontoblast and osteoblast differentiation in DP cultures. MATERIALS AND METHODS Cultures were established using DP tissue isolated from non-transgenic and fluorescent reporter (DSPP-Cerulean, BSP-GFP, and DMP1-mCherry) transgenic mice and exposed to BMP2, FGF2, SU5402 (an FGF receptor inhibitor), and noggin between days 3-7. Mineralization, gene expression, fluorescent protein expression, and odontoblast formation were examined using xylenol orange, quantitative PCR, fluorometric analysis, and immunocytochemistry, respectively. RESULTS BMP2 activated SMAD1/5/8 but not ERK1/2 signaling, whereas FGF2 exerted opposite effects. BMP2 did not affect mineralization, the expression of Ibsp and Dmp1, and the percentage of DSPP-Cerulean+ odontoblasts but significantly increased Dspp and DSPP-Cerulean. In cultures exposed to BMP2 and FGF2, respectively, both SU5402 and noggin led to long-lasting decreases in Dspp and DSPP-Cerulean and transient decreases in Dmp1 and DMP1-mCherry without affecting Ibsp and BSP-GFP. CONCLUSION BMP2 and FGF2 exerted reciprocal stimulatory effects on odontoblast differentiation, whereas their effects on osteoblast differentiation were mediated independently. These data will further elucidate the perspectives of using BMP2 and FGF2 for dentin regeneration/repair.
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Affiliation(s)
- Karo Parsegian
- Division of Periodontics, Department of Surgical Dentistry, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Craniofacial Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, CT, USA
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Bai Y, Liu X, Li J, Wang Z, Guo Q, Xiao M, Cooper PR, Yu Q, He W. Stage-Dependent Regulation of Dental Pulp Stem Cell Odontogenic Differentiation by Transforming Growth Factor- β1. Stem Cells Int 2022; 2022:2361376. [PMID: 36338026 PMCID: PMC9629931 DOI: 10.1155/2022/2361376] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 09/21/2022] [Accepted: 09/29/2022] [Indexed: 10/12/2023] Open
Abstract
Transforming growth factor-β1 (TGF-β1) is an important multifunctional cytokine with dual effects on stem cell differentiation. However, the role of TGF-β1 on odontogenic differentiation of dental pulp stem cells (DPSCs) remains to be entirely elucidated. In the present study, we initially investigated the effect of TGF-β1 at a range of concentrations (0.1-5 ng/mL) on the proliferation, cell cycle, and apoptosis of DPSCs. Subsequently, to determine the effect of TGF-β1 on odontogenic differentiation, alkaline phosphatase (ALP) activity and Alizarin Red S (ARS) staining assays at different concentrations and time points were performed. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot analysis were used to determine the levels of odonto-/osteo-genic differentiation-related gene and protein expression, respectively. For in vivo studies, newly formed tissue was assessed by Masson's trichrome and von Kossa staining. Data indicated that TGF-β1 inhibited DPSCs proliferation in a concentration-and time-dependent manner (p < 0.05) and induced cell cycle arrest but did not affect apoptosis. ALP activity was enhanced, while ARS reduced gradually with increasing TGF-β1 concentrations, accompanied by increased expression of early marker genes of odonto-/osteo-genic differentiation and decreased expression of late-stage mineralization marker genes (p < 0.05). ALP expression was elevated in the TGF-β1-treatment group until 14 days, and the intensity of ARS staining was attenuated at days 14 and 21 (p < 0.05). Compared with the control group, abundant collagen but no mineralized tissues were observed in the TGF-β1-treatment group in vivo. Overall, these findings indicate that TGF-β1 promotes odontogenic differentiation of DPSCs at early-stage while inhibiting later-stage mineralization processes.
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Affiliation(s)
- Yu Bai
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Air Force Medical University, 145 Changle Road, Xi'an 710032, China
| | - Xin Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Air Force Medical University, 145 Changle Road, Xi'an 710032, China
| | - Junqing Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Air Force Medical University, 145 Changle Road, Xi'an 710032, China
- Hospital of Stomatology, Zunyi Medical University, 89 Wu-jiang Dong Road, Zunyi 563003, China
| | - Zhihua Wang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Air Force Medical University, 145 Changle Road, Xi'an 710032, China
| | - Qian Guo
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Air Force Medical University, 145 Changle Road, Xi'an 710032, China
| | - Min Xiao
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Air Force Medical University, 145 Changle Road, Xi'an 710032, China
| | - Paul R. Cooper
- Department of Oral Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
| | - Qing Yu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, Air Force Medical University, 145 Changle Road, Xi'an 710032, China
| | - Wenxi He
- Department of Stomatology, Air Force Medical Center, Air Force Medical University, 30 Fucheng Road, Beijing 100142, China
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Xu K, Chu Y, Liu Q, Fan W, He H, Huang F. NEDD4 E3 Ligases: Functions and Mechanisms in Bone and Tooth. Int J Mol Sci 2022; 23:ijms23179937. [PMID: 36077334 PMCID: PMC9455957 DOI: 10.3390/ijms23179937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/29/2022] Open
Abstract
Protein ubiquitination is a precisely controlled enzymatic cascade reaction belonging to the post-translational modification of proteins. In this process, E3 ligases catalyze the binding of ubiquitin (Ub) to protein substrates and define specificity. The neuronally expressed developmentally down-regulated 4 (NEDD4) subfamily, belonging to the homology to E6APC terminus (HECT) class of E3 ligases, has recently emerged as an essential determinant of multiple cellular processes in different tissues, including bone and tooth. Here, we place special emphasis on the regulatory role of the NEDD4 subfamily in the molecular and cell biology of osteogenesis. We elucidate in detail the specific roles, downstream substrates, and upstream regulatory mechanisms of the NEDD4 subfamily. Further, we provide an overview of the involvement of E3 ligases and deubiquitinases in the development, repair, and regeneration of another mineralized tissue—tooth.
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Affiliation(s)
- Ke Xu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510008, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
| | - Yanhao Chu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510008, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
| | - Qin Liu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510008, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
| | - Wenguo Fan
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510008, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
| | - Hongwen He
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
- Correspondence: (H.H.); (F.H.)
| | - Fang Huang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510008, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
- Correspondence: (H.H.); (F.H.)
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Figueredo CA, Abdelhay N, Gibson MP. The Roles of SIBLING Proteins in Dental, Periodontal and Craniofacial Development. FRONTIERS IN DENTAL MEDICINE 2022. [DOI: 10.3389/fdmed.2022.898802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The majority of dental, periodontal, and craniofacial tissues are derived from the neural crest cells and ectoderm. Neural crest stem cells are pluripotent, capable of differentiating into a variety of cells. These cells can include osteoblasts, odontoblasts, cementoblasts, chondroblasts, and fibroblasts which are responsible for forming some of the tissues of the oral and craniofacial complex. The hard tissue forming cells deposit a matrix composed of collagen and non-collagenous proteins (NCPs) that later undergoes mineralization. The NCPs play a role in the mineralization of collagen. One such category of NCPs is the small integrin-binding ligand, N-linked glycoprotein (SIBLING) family of proteins. This family is composed of dentin sialophosphosprotein (DSPP), osteopontin (OPN), dentin matrix protein 1 (DMP1), bone sialoprotein (BSP), and matrix extracellular phosphoglycoprotein (MEPE). The SIBLING family is known to have regulatory effects in the mineralization process of collagen fibers and the maturation of hydroxyapatite crystals. It is well established that SIBLING proteins have critical roles in tooth development. Recent literature has described the expression and role of SIBLING proteins in other areas of the oral and craniofacial complex as well. The objective of the present literature review is to summarize and discuss the different roles the SIBLING proteins play in the development of dental, periodontal, and craniofacial tissues.
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10
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Qin R, Cui Z, Zhou H, Guo R, Yao X, Wang T, Qin X, He X. Effect of lentivirus-mediated BMP2 from autologous tooth on the proliferative and osteogenic capacity of human periodontal ligament cells. J Periodontal Res 2022; 57:869-879. [PMID: 35730345 DOI: 10.1111/jre.13025] [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: 12/01/2021] [Revised: 04/28/2022] [Accepted: 05/29/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Periodontitis is a chronic progressive inflammation that invades periodontal supporting tissues, in which periodontal tissue regeneration engineering offers new hope for prevention and treatment, including seed cells, scaffolds, and growth factors. In recent years, scholars have shown that autologous teeth can be used as new bone tissue repair materials for periodontal regeneration and bone tissue repair. The aim of this study was to establish a human periodontal ligament cell line that expresses the human bone morphogenetic protein 2 gene (BMP2) in a stable manner using lentiviral mediation in order to explore the effect of BMP2 from autologous tooth on the proliferative and osteogenic capacity of human periodontal ligament cells (hPDLCs). MATERIALS AND METHODS Human periodontal ligament cells were cultured, subcultured, and identified, and then homologous recombinant lentivirus plasmid plv-BMP2 was constructed and transfected into the third passage (P3 ) hPDLCs. After that, the effect of BMP2 on its proliferation was detected by CCK-8, at the same time, the osteogenic induction of hPDLCs was carried out at 7, 14, and 21 days, and then the effect of BMP2 on its osteogenic ability was detected by alizarin red staining, alkaline phosphatase activity determination, and the mRNA expression levels of osteogenic-related genes using real-time fluorescence quantitative PCR, including alkaline phosphatase, runt-related transcription factor 2, bone sialoprotein, osteocalcin, osteopontin, and collagen I. Finally, spss26.0 software was used for statistical processing. RESULTS The results showed that cells transfected with the homologous recombinant lentiviral plasmid pLV-BMP2 had a similar morphology to normal hPDLCs, showing a typical radial arrangement; the cell proliferative capacity of the pLV-BMP2 group as measured by CCK-8 was enhanced compared with the control group and the pLV-puro group (p < .05); alizarin red staining and alkaline phosphatase activity assay showed that the osteogenic ability of pLV-BMP2 was significantly enhanced compared with the control and pLV-puro groups (p < .01), and the findings of real-time fluorescence-based quantitative PCR showed high expression of osteogenic-related genes in pLV-BMP2 group (p < .01). CONCLUSION In conclusion, a stable periodontal ligament cell line overexpressing BMP2 was successfully established by a lentivirus-mediated method, which proved that BMP2 has a strong ability to promote the proliferation and osteogenesis of hPDLCs, thereby providing an opportunity for the study of periodontal tissue regeneration as well as providing an experimental basis for the application of autologous teeth as a new type of bone repair material for periodontal therapy and even for maxillofacial bone tissue repair.
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Affiliation(s)
- Ruoshan Qin
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Ziwei Cui
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Hongli Zhou
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Ru Guo
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Xuanxuan Yao
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Tao Wang
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
| | - Xiaodong Qin
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
| | - Xiangyi He
- Department of Prosthodontics, School of Dentistry, Lanzhou University, Lanzhou, Gansu, China
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11
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Yu X, Wang J, Han Q, Chu W, Lu S, Liu Y, Peng Y, Xu J, Shui Y. Effects of Yunnan Baiyao on the Differentiation of HPDLFs on the Bio-Oss® Collagen Scaffold in vivo. Int J Gen Med 2022; 15:5395-5405. [PMID: 35685694 PMCID: PMC9173728 DOI: 10.2147/ijgm.s359921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/09/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Xiaohong Yu
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Jing Wang
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Qianqian Han
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Wen Chu
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Shaowen Lu
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Yu Liu
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Yi Peng
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Jie Xu
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Yanqing Shui
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
- Correspondence: Yanqing Shui, Department of Periodontology, Affiliated Stomatology Hospital of Kunming Medical University, Block C, Hecheng International, No. 1088 Haiyuan Middle Road, Wuhua District, Kunming, 650106, Yunnan, People’s Republic of China, Tel +86 15987150210, Email
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12
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Yuan H, Suzuki S, Terui H, Hirata-Tsuchiya S, Nemoto E, Yamasaki K, Saito M, Shiba H, Aiba S, Yamada S. Loss of IκBζ Drives Dentin Formation via Altered H3K4me3 Status. J Dent Res 2022; 101:951-961. [PMID: 35193410 DOI: 10.1177/00220345221075968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Enforced enrichment of the active promoter marks trimethylation of histone H3 lysine 4 (H3K4me3) and acetylation of histone H3 lysine 27 (H3K27ac) by inhibiting histone demethylases and deacetylases is positively associated with hard tissue formation through the induction of osteo/odontogenic differentiation. However, the key endogenous epigenetic modulator of odontoblasts to regulate the expression of genes coding dentin extracellular matrix (ECM) proteins has not been identified. We focused on nuclear factor (NF)-κB inhibitor ζ (IκBζ), which was originally identified as the transcriptional regulator of NF-κB and recently regarded as the NF-κB-independent epigenetic modulator, and found that IκBζ null mice exhibit a thicker dentin width and narrower pulp chamber, with aged mice having more marked phenotypes. At 6 mo of age, dentin fluorescent labeling revealed significantly accelerated dentin synthesis in the incisors of IκBζ null mice. In the molars of IκBζ null mice, marked tertiary dentin formation adjacent to the pulp horn was observed. Mechanistically, the expression of COL1A2 and COL1A1 collagen genes increased more in the odontoblast-rich fraction of IκBζ null mice than in wild type in vivo, similar to human odontoblast-like cells transfected with small interfering RNA for IκBζ compared with cells transfected with control siRNA in vitro. Furthermore, the direct binding of IκBζ to the COL1A2 promoter suppressed COL1A2 expression and the local active chromatin status marked by H3K4me3. Based on whole-genome identification of H3K4me3 enrichment, ECM and ECM organization-related gene loci were selectively activated by the knockdown of IκBζ, which consistently resulted in the upregulation of these genes. Collectively, this study suggested that IκBζ is the key negative regulator of dentin formation in odontoblasts by inhibiting dentin ECM- and ECM organization-related gene expression through an altered local chromatin status marked by H3K4me3. Therefore, IκBζ is a potential target for epigenetically improving the clinical outcomes of dentin regeneration therapies such as pulp capping.
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Affiliation(s)
- H Yuan
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - S Suzuki
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - H Terui
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Hirata-Tsuchiya
- Department of Biological Endodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - E Nemoto
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - K Yamasaki
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - M Saito
- Department of Restorative Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - H Shiba
- Department of Biological Endodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - S Aiba
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Yamada
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
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13
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Gomes NA, do Valle IB, Gleber-Netto FO, Silva TA, Oliveira HMDC, de Oliveira RF, Ferreira LDAQ, Castilho LS, Reis PHRG, Prazeres PHDM, Menezes GB, de Magalhães CS, Mesquita RA, Marques MM, Birbrair A, Diniz IMA. Nestin and NG2 transgenes reveal two populations of perivascular cells stimulated by photobiomodulation. J Cell Physiol 2022; 237:2198-2210. [PMID: 35040139 DOI: 10.1002/jcp.30680] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 12/14/2021] [Accepted: 01/04/2022] [Indexed: 12/20/2022]
Abstract
Pericytes and glial cells are known to collaborate in dental pulp tissue repair. Cell-based therapies that stimulate these stromal components may be of therapeutic relevance for partially vital dental pulp conditions. This study aimed to examine the early effect of photobiomodulation (PBM) in pericytes from experimentally injured pulp tissue. To accomplish this, we used the Nestin-GFP/NG2-DsRed mice, which could allow the identification of distinct pericyte phenotypes. We discovered the presence of two pericytes subsets within the dental pulp, the Nestin + NG2+ (type-2) and Nestin- NG2+ (type-1). Upon injury, PBM treatment led to a significant increase in Nestin+ cells and pericytes. This boost was mainly conferred by the more committed pericyte subset (NestinNG2+ ). PBM also stimulated terminal blood vessels sprouting adjacent to the injury site while maintaining signs of pulp vitality. In vitro, PBM induced VEGF upregulation, improved dental pulp cells proliferation and migration, and favored their mineralization potential. Herein, different subsets of perivascular cells were unveiled in the pulp tissue. PBM enhanced not only NG2+ cells but nestin-expressing progenitors in the injured dental pulp.
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Affiliation(s)
- Natália A Gomes
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Isabella B do Valle
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Frederico O Gleber-Netto
- Department of Head & Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Tarcília A Silva
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Rafaela F de Oliveira
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luiza de Almeida Q Ferreira
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lia S Castilho
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Paulo H R G Reis
- Ohlab, Associação Mineira de Reabilitação, Belo Horizonte, Brazil
| | - Pedro H D M Prazeres
- Departament of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Gustavo B Menezes
- Department of Morphology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Cláudia S de Magalhães
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo A Mesquita
- Department of Head & Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Márcia M Marques
- Postgraduation Program in Dentistry, Ibirapuera University, São Paulo, Brazil
| | - Alexander Birbrair
- Departament of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ivana M A Diniz
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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14
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Abstract
The development and repair of dentin are strictly regulated by hundreds of genes. Abnormal dentin development is directly caused by gene mutations and dysregulation. Understanding and mastering this signal network is of great significance to the study of tooth development, tissue regeneration, aging, and repair and the treatment of dental diseases. It is necessary to understand the formation and repair mechanism of dentin in order to better treat the dentin lesions caused by various abnormal properties, whether it is to explore the reasons for the formation of dentin defects or to develop clinical drugs to strengthen the method of repairing dentin. Molecular biology of genes related to dentin development and repair are the most important basis for future research.
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Affiliation(s)
- Shuang Chen
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Shanghai Stomatological Hospital, Fudan University, Shanghai, P. R. China.,Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, P. R. China
| | - Han Xie
- Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - Shouliang Zhao
- Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - Shuai Wang
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Shanghai Stomatological Hospital, Fudan University, Shanghai, P. R. China
| | - Xiaoling Wei
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Shanghai Stomatological Hospital, Fudan University, Shanghai, P. R. China.,Department of Endodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, P. R. China
| | - Shangfeng Liu
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Shanghai Stomatological Hospital, Fudan University, Shanghai, P. R. China
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15
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Liu M, Li W, Xia X, Wang F, MacDougall M, Chen S. Dentine sialophosphoprotein signal in dentineogenesis and dentine regeneration. Eur Cell Mater 2021; 42:43-62. [PMID: 34275129 PMCID: PMC9019922 DOI: 10.22203/ecm.v042a04] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Dentineogenesis starts on odontoblasts, which synthesise and secrete non-collagenous proteins (NCPs) and collagen. When dentine is injured, dental pulp progenitors/mesenchymal stem cells (MSCs) can migrate to the injured area, differentiate into odontoblasts and facilitate formation of reactionary dentine. Dental pulp progenitor cell/MSC differentiation is controlled at given niches. Among dental NCPs, dentine sialophosphoprotein (DSPP) is a member of the small integrin-binding ligand N-linked glycoprotein (SIBLING) family, whose members share common biochemical characteristics such as an Arg-Gly-Asp (RGD) motif. DSPP expression is cell- and tissue-specific and highly seen in odontoblasts and dentine. DSPP mutations cause hereditary dentine diseases. DSPP is catalysed into dentine glycoprotein (DGP)/sialoprotein (DSP) and phosphoprotein (DPP) by proteolysis. DSP is further processed towards active molecules. DPP contains an RGD motif and abundant Ser-Asp/Asp-Ser repeat regions. DPP-RGD motif binds to integrin αVβ3 and activates intracellular signalling via mitogen-activated protein kinase (MAPK) and focal adhesion kinase (FAK)-ERK pathways. Unlike other SIBLING proteins, DPP lacks the RGD motif in some species. However, DPP Ser-Asp/Asp-Ser repeat regions bind to calcium-phosphate deposits and promote hydroxyapatite crystal growth and mineralisation via calmodulin-dependent protein kinase II (CaMKII) cascades. DSP lacks the RGD site but contains signal peptides. The tripeptides of the signal domains interact with cargo receptors within the endoplasmic reticulum that facilitate transport of DSPP from the endoplasmic reticulum to the extracellular matrix. Furthermore, the middle- and COOH-terminal regions of DSP bind to cellular membrane receptors, integrin β6 and occludin, inducing cell differentiation. The present review may shed light on DSPP roles during odontogenesis.
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Affiliation(s)
- M.M. Liu
- Department of Developmental Dentistry, School of Dentistry, the University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA,Department of Endodontics, School of Stomatology, Tongji University, Shanghai, 200072, China
| | - W.T. Li
- Department of Developmental Dentistry, School of Dentistry, the University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA,Department of Pathology, Weifang Medical University, Weifang, 261053, China
| | - X.M. Xia
- Department of Developmental Dentistry, School of Dentistry, the University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA,Department of Obstetrics and Gynaecology, Second Xiangya Hospital, Central South University Changsha, 410011, China
| | - F. Wang
- Department of Anatomy, Fujian Medical University, Fuzhou, 350122, China
| | - M. MacDougall
- UBC Faculty of Dentistry, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - S. Chen
- Department of Developmental Dentistry, School of Dentistry, the University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
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16
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Minic S, Florimond M, Sadoine J, Valot-Salengro A, Chaussain C, Renard E, Boukpessi T. Evaluation of Pulp Repair after Biodentine TM Full Pulpotomy in a Rat Molar Model of Pulpitis. Biomedicines 2021; 9:biomedicines9070784. [PMID: 34356848 PMCID: PMC8301331 DOI: 10.3390/biomedicines9070784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 12/14/2022] Open
Abstract
Dental pulp is a dynamic tissue able to heal after injury under moderate inflammatory conditions. Our study aimed to evaluate pulp repair under inflammatory conditions in rats. For this purpose, we developed a rat model of controlled pulpitis followed by pulpotomy with a tricalcium silicate-based cement. Fifty-four cavities were prepared on the occlusal face of the maxillary upper first molar of 27 eight-week-old male rats. E. coli lipopolysaccharides at 10 mg/mL or phosphate-buffered saline PBS was injected after pulp injury. Non-inflamed molars were used as controls. Levels of inflammation-related molecules were measured 6 and 24 h after induction by enzyme-linked immunosorbent assay of coronal pulp samples. Pulp capping and coronal obturation after pulpotomy were performed with tricalcium silicate-based cement. Four and fifteen days after pulpotomy, histological and immunohistochemical analysis was performed to assess pulp inflammation and repair processes. Our results showed significantly higher levels of innate inflammatory proteins (IL-1β, IL-6, TNF-α and CXCL-1) compared with those in controls. Moderate residual inflammation near the capping material was demonstrated by histology and immunohistochemistry, with the presence of few CD68-positive cells. We showed that, in this model of controlled pulpitis, pulpotomy with BiodentineTM allowed the synthesis at the injury site of a mineralized bridge formed from mineralized tissue secreted by cells displaying odontoblastic characteristics. Analysis of these data suggests overall that, with the limitations inherent to findings in animal models, pulpotomy with a silicate-based cement is a good treatment for controlling inflammation and enhancing repair in cases of controlled pulpitis.
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Affiliation(s)
- Sandra Minic
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d’excellence INFLAMEX, Université de Paris, URP 2496, 1 Rue Maurice Arnoux, 92120 Montrouge, France; (S.M.); (M.F.); (J.S.); (C.C.)
| | - Marion Florimond
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d’excellence INFLAMEX, Université de Paris, URP 2496, 1 Rue Maurice Arnoux, 92120 Montrouge, France; (S.M.); (M.F.); (J.S.); (C.C.)
- AP-HP Department of Dental Medicine, Charles Foix and Bretonneau Hospitals, and Reference Center for Rare Diseases of Calcium and Phosphorus Metabolism, 7 Avenue de la République, 94200 Ivry-sur-Seine, France
| | - Jérémy Sadoine
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d’excellence INFLAMEX, Université de Paris, URP 2496, 1 Rue Maurice Arnoux, 92120 Montrouge, France; (S.M.); (M.F.); (J.S.); (C.C.)
| | | | - Catherine Chaussain
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d’excellence INFLAMEX, Université de Paris, URP 2496, 1 Rue Maurice Arnoux, 92120 Montrouge, France; (S.M.); (M.F.); (J.S.); (C.C.)
- AP-HP Department of Dental Medicine, Charles Foix and Bretonneau Hospitals, and Reference Center for Rare Diseases of Calcium and Phosphorus Metabolism, 7 Avenue de la République, 94200 Ivry-sur-Seine, France
| | - Emmanuelle Renard
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, 1 Place Alexis Ricordeau, 44000 Nantes, France
- CHU de Nantes, Service d’Odontologie Restauratrice et Chirurgicale, 1 Place Alexis Ricordeau, 44000 Nantes, France
- Correspondence: (E.R.); (T.B.); Tel.: +33-2-40-41-29-86 (E.R.); +33-1-58-07-67-24 (T.B.)
| | - Tchilalo Boukpessi
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d’excellence INFLAMEX, Université de Paris, URP 2496, 1 Rue Maurice Arnoux, 92120 Montrouge, France; (S.M.); (M.F.); (J.S.); (C.C.)
- AP-HP Department of Dental Medicine, Charles Foix and Bretonneau Hospitals, and Reference Center for Rare Diseases of Calcium and Phosphorus Metabolism, 7 Avenue de la République, 94200 Ivry-sur-Seine, France
- Correspondence: (E.R.); (T.B.); Tel.: +33-2-40-41-29-86 (E.R.); +33-1-58-07-67-24 (T.B.)
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17
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Vijaykumar A, Mina M. Lithium Chloride Exerts Differential Effects on Dentinogenesis and Osteogenesis in Primary Pulp Cultures. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.649500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Wnt/β-catenin signaling is known to play essential roles in odontoblast differentiation and reparative dentin formation. Various Wnt activators including LiCl have been increasingly studied for their effectiveness to induce repair of the dentin-pulp complex. LiCl is a simple salt thought to activate Wnt/β-catenin signaling by inhibiting GSK3β. Previous in vitro and in vivo studies showed that LiCl increased odontoblast differentiation and enhanced reparative dentin formation. However, the underlying molecular and cellular mechanisms by which LiCl regulates odontoblast and osteoblast differentiation during reparative dentinogenesis are not well-understood. Our in vitro studies show that exposure of early dental pulp progenitors to LiCl increased the survival and the pool of αSMA+ progenitors, leading to enhanced odontoblast and osteoblast differentiation. The positive effects of LiCl in the differentiation of osteoblasts and odontoblasts from αSMA+ progenitors are mediated by Wnt/β-catenin signaling. Our results also showed that continuous and late exposure of dental pulp cells to LiCl increased the expression of odontoblast markers through Wnt/β-catenin signaling, and the number of odontoblasts expressing DMP1-Cherry and DSPP-Cerulean transgenes. However, unlike the early treatment, both continuous and late treatments decreased the expression of Bsp and the expression of BSP-GFPtpz transgene. These observations suggest that prolonged treatment with LiCl in more mature cells of the dental pulp has an inhibitory effect on osteoblast differentiation. The inhibitory effects of LiCl on osteogenesis and Bsp were not mediated through Wnt/β-catenin signaling. These observations suggest that the effects of LiCl, and GSK3β antagonists on reparative dentinogenesis involve multiple pathways and are not specific to Wnt/β-catenin signaling.
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18
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Kovacs CS, Chaussain C, Osdoby P, Brandi ML, Clarke B, Thakker RV. The role of biomineralization in disorders of skeletal development and tooth formation. Nat Rev Endocrinol 2021; 17:336-349. [PMID: 33948016 DOI: 10.1038/s41574-021-00488-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/19/2021] [Indexed: 02/03/2023]
Abstract
The major mineralized tissues are bone and teeth, which share several mechanisms governing their development and mineralization. This crossover includes the hormones that regulate circulating calcium and phosphate concentrations, and the genes that regulate the differentiation and transdifferentiation of cells. In developing endochondral bone and in developing teeth, parathyroid hormone-related protein (PTHrP) acts in chondrocytes to delay terminal differentiation, thereby increasing the pool of precursor cells. Chondrocytes and (in specific circumstances) pre-odontoblasts can also transdifferentiate into osteoblasts. Moreover, bone and teeth share outcomes when affected by systemic disorders of mineral homeostasis or of the extracellular matrix, and by adverse effects of treatments such as bisphosphonates and fluoride. Unlike bone, teeth have more permanent effects from systemic disorders because they are not remodelled after they are formed. This Review discusses the normal processes of bone and tooth development, followed by disorders that have effects on both bone and teeth, versus disorders that have effects in one without affecting the other. The takeaway message is that bone specialists should know when to screen for dental disorders, just as dental specialists should recognize when a tooth disorder should raise suspicions about a possible underlying bone disorder.
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Affiliation(s)
- Christopher S Kovacs
- Faculty of Medicine - Endocrinology, Memorial University of Newfoundland, St. John's, NL, Canada.
| | | | - Philip Osdoby
- Department of Biology, Washington University, St. Louis, MO, USA
| | - Maria Luisa Brandi
- Department of Biochemical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - Bart Clarke
- Mayo Clinic Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Rochester, MN, USA
| | - Rajesh V Thakker
- Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
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19
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Biofabrication of Gingival Fibroblast Cell-Laden Collagen/Strontium-Doped Calcium Silicate 3D-Printed Bi-Layered Scaffold for Osteoporotic Periodontal Regeneration. Biomedicines 2021; 9:biomedicines9040431. [PMID: 33923505 PMCID: PMC8073616 DOI: 10.3390/biomedicines9040431] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/02/2021] [Accepted: 04/14/2021] [Indexed: 12/13/2022] Open
Abstract
Periodontal disease is a chronic disease that can lead to lose teeth and even tooth loss if left untreated. Osteoporosis and periodontal disease share similar characteristics and associated factors. Current regenerative techniques for periodontal diseases are ineffective in restoring complete function and structural integrity of periodontium due to unwanted migration of cells. In this study, we applied the concept of guided tissue regeneration (GTR) and 3D fabricated gingival fibroblast cell-laden collagen/strontium-doped calcium silicate (SrCS) bi-layer scaffold for periodontal regeneration. The results revealed that the bioactive SrCS had a hydroxyapatite formation on its surface after 14 days of immersion and that SrCS could release Sr and Si ions even after 6 months of immersion. In addition, in vitro results showed that the bi-layer scaffold enhanced secretion of FGF-2, BMP-2, and VEGF from human gingival fibroblasts and increased secretion of osteogenic-related proteins ALP, BSP, and OC from WJMSCs. In vivo studies using animal osteoporotic models showed that the 3D-printed cell-laden collagen/SrCS bi-layer scaffold was able to enhance osteoporotic bone regeneration, as seen from the increased Tb.Th and BV/TV ratio and the histological stains. In conclusion, it can be seen that the bi-layer scaffolds enhanced osteogenesis and further showed that guided periodontal regeneration could be achieved using collagen/SrCS scaffolds, thus making it a potential candidate for future clinical applications.
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Vijaykumar A, Root SH, Mina M. Wnt/β-Catenin Signaling Promotes the Formation of Preodontoblasts In Vitro. J Dent Res 2020; 100:387-396. [PMID: 33103548 DOI: 10.1177/0022034520967353] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Odontoblast differentiation is a complex and multistep process regulated by signaling pathways, including the Wnt/β-catenin signaling pathway. Both positive and negative effects of Wnt/β-catenin signaling on dentinogenesis have been reported, but the underlying mechanisms of these conflicting results are still unclear. To gain a better insight into the role of Wnt/β-catenin in dentinogenesis, we used dental pulp cells from a panel of transgenic mice, in which fluorescent protein expression identifies cells at different stages of odontoblast and osteoblast differentiation. Our results showed that exposure of pulp cells to WNT3a at various times and durations did not induce premature differentiation of odontoblasts. These treatments supported the survival of undifferentiated cells in dental pulp and promoted the formation of 2.3GFP+ preodontoblasts and their rapid transition into differentiated odontoblasts expressing DMP1-Cherry and DSPP-Cerulean transgenes. WNT3a also promoted osteogenesis in dental pulp cultures. These findings provide critical information for the development of improved treatments for vital pulp therapy and dentin regeneration.
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Affiliation(s)
- A Vijaykumar
- Department of Craniofacial Sciences, University of Connecticut Health Center, Farmington, CT, USA
| | - S H Root
- Department of Craniofacial Sciences, University of Connecticut Health Center, Farmington, CT, USA
| | - M Mina
- Department of Craniofacial Sciences, University of Connecticut Health Center, Farmington, CT, USA
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Kao CT, Chiu YC, Lee AKX, Lin YH, Huang TH, Liu YC, Shie MY. The synergistic effects of Xu Duan combined Sr-contained calcium silicate/poly-ε-caprolactone scaffolds for the promotion of osteogenesis marker expression and the induction of bone regeneration in osteoporosis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111629. [PMID: 33321669 DOI: 10.1016/j.msec.2020.111629] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/08/2020] [Accepted: 10/13/2020] [Indexed: 12/16/2022]
Abstract
Osteoporosis and its related problems such as fractures are gradually becoming common due to an aging population. Current methods to treat osteoporosis include medical and surgical options such as bone implants. Recent developments in 3D printing and materials science technologies has allowed us to fabricate individualized scaffolds with desired properties. In this study, we mixed Xu Duan into strontium‑calcium silicate powder at 5% (XD5) and 10% (XD10) and fabricated 3D scaffolds with polycaprolactone. All scaffolds were assessed for its physical, mechanical, and biological properties to evaluated for its feasibility for bone tissue engineering in the osteoporosis model. Our results showed that such a scaffold could be fabricated using extrusion-based printing techniques and that addition of XD did not alter original structural properties of the SrCS. Furthermore, the XD5 and XD10 scaffolds were found to be non-toxic to cells and cells cultured on the scaffolds had significantly higher proliferation and secreted increased osteogenic-related proteins in in vitro studies as compared to the XD0 groups. Remarkably, the XD10 scaffolds could be used as substitutes for the critical-sized bone defect (7.0 mm diameter and 8.0 mm depth) in the osteoporotic rabbit model. The XD10 scaffolds can enhance bone ingrowth and accelerate new bone regeneration even in complex osteoporotic pathological environments. These results showed that such a Chinese medicine-contained scaffold had potential in osteoporosis bone tissue regeneration and could be considered as a promising tool for future clinical used applications.
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Affiliation(s)
- Chia-Tze Kao
- School of Dentistry, Chung Shan Medical University, Taichung City, Taiwan; Department of Stomatology, Chung Shan Medical University Hospital, Taichung City, Taiwan
| | - Yung-Cheng Chiu
- School of Medicine, China Medical University, Taichung City, Taiwan; Department of Orthopedic Surgery, China Medical University Hospital, Taichung 40447, Taiwan
| | - Alvin Kai-Xing Lee
- School of Medicine, China Medical University, Taichung City, Taiwan; x-Dimension Center for Medical Research and Translation, China Medical University Hospital, Taichung City, Taiwan
| | - Yen-Hong Lin
- x-Dimension Center for Medical Research and Translation, China Medical University Hospital, Taichung City, Taiwan; The Ph.D. Program for Medical Engineering and Rehabilitation Science, China Medical University, Taichung City, Taiwan
| | - Tsui-Hsien Huang
- School of Dentistry, Chung Shan Medical University, Taichung City, Taiwan; Department of Stomatology, Chung Shan Medical University Hospital, Taichung City, Taiwan
| | - Yen-Chieh Liu
- Graduate Institute of Dental Science and Oral Health Industries, China Medical University, Taichung City, Taiwan
| | - Ming-You Shie
- x-Dimension Center for Medical Research and Translation, China Medical University Hospital, Taichung City, Taiwan; School of Dentistry, China Medical University, Taichung City, Taiwan; Department of Bioinformatics and Medical Engineering, Asia University, Taichung City, Taiwan.
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Vijaykumar A, Mina M. Comparison of osteogenic and dentinogenic potentials of mice incisor and molar pulps in vitro. Arch Oral Biol 2020; 111:104647. [PMID: 31958658 PMCID: PMC7050286 DOI: 10.1016/j.archoralbio.2019.104647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/24/2019] [Accepted: 12/28/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVE In the present study, we compared the in vitro osteogenic and dentinogenic potential of pulp cells from incisors and molars. DESIGN Primary pulp cultures were established from DSPP-Cerulean/DMP1-Cherry and BSP-GFPtpz reporter mouse lines and processed for various assays. RESULTS Our results showed marked differences in dentinogenic and osteogenic potentials of primary cultures from unerupted molars and incisors isolated from 5 to 7 days old pups. While primary cultures from both incisors and molars differentiated into odontoblasts and osteoblasts, cultures from molars differentiated into more DSPP-Cerulean + cells (∼5.5 %) compared to incisor cultures (∼0.7 %) at Day 14 and appear to be more committed to the odontogenic lineage. On the other hand, cultures from incisors show more differentiation into BSP-GFPtpz + cells (∼25 %) compared to molar cultures (∼16 %) and were more committed to the osteogenic lineage. Data were analyzed by Student's t-test and statistical significance was set at P ≤ 0.05. CONCLUSION Since in the dental pulp, MSCs are the primary source of progenitors capable of giving rise to osteoblasts and odontoblasts, our results provide evidence for differences in the commitment of MSCs in molars and incisors to the odontogenic and osteogenic lineages, respectively.
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Affiliation(s)
- A Vijaykumar
- Department of Craniofacial Sciences School of Dental Medicine, University of Connecticut, Farmington, CT, United States
| | - M Mina
- Department of Craniofacial Sciences School of Dental Medicine, University of Connecticut, Farmington, CT, United States.
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