1
|
Miyata N, Mori S, Murakami T, Bizenjima T, Seshima F, Imamura K, Saito A. Combined Effects of Fibroblast Growth Factor-2 and Carbonate Apatite Granules on Periodontal Healing: An In Vivo and In Vitro Study. Biomedicines 2024; 12:1664. [PMID: 39200129 PMCID: PMC11352071 DOI: 10.3390/biomedicines12081664] [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: 07/08/2024] [Revised: 07/17/2024] [Accepted: 07/23/2024] [Indexed: 09/01/2024] Open
Abstract
The aim of this study was to investigate in vivo and in vitro the effectiveness of the use of fibroblast growth factor (FGF)-2 with carbonate apatite (CO3Ap) on periodontal healing. Periodontal defects created in the maxillary first molars in rats were treated with FGF-2, CO3Ap, FGF-2 + CO3Ap or left unfilled. Healing was evaluated using microcomputed tomography, histological, and immunohistochemical analyses. In vitro experiments were performed to assess cellular behaviors and the expression of osteoblastic differentiation markers in MC3T3-E1 cells. At 4 weeks, the bone volume fraction in the FGF-2 + CO3Ap group was significantly greater than that in the CO3Ap group, but there was no significant difference from the FGF-2 group. The FGF-2 + CO3Ap group demonstrated greater new bone compared with the FGF-2 or CO3Ap group. The FGF-2 + CO3Ap group showed greater levels of osteocalcin-positive cells compared with the CO3Ap group, but there was no significant difference from the FGF-2 group. In vitro, the FGF-2 + CO3Ap group exhibited a greater extent of cell attachment and more elongated cells compared with the CO3Ap group. Compared with the CO3Ap group, the FGF-2 + CO3Ap group showed significantly higher viability/proliferation, but the expressions of Runx2 and Sp7 were reduced. The results indicated that the use of FGF-2 with CO3Ap enhanced healing in the periodontal defects. FGF-2 promoted cell attachment to and proliferation on CO3Ap and regulated osteoblastic differentiation, thereby contributing to novel bone formation.
Collapse
Affiliation(s)
- Naoki Miyata
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (N.M.); (S.M.); (T.M.); (F.S.); (K.I.)
| | - Shinta Mori
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (N.M.); (S.M.); (T.M.); (F.S.); (K.I.)
- Oral Health Science Center, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan
| | - Tasuku Murakami
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (N.M.); (S.M.); (T.M.); (F.S.); (K.I.)
| | - Takahiro Bizenjima
- Chiba Dental Center, Tokyo Dental College, Mihama-ku, Chiba 2618502, Japan;
| | - Fumi Seshima
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (N.M.); (S.M.); (T.M.); (F.S.); (K.I.)
| | - Kentaro Imamura
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (N.M.); (S.M.); (T.M.); (F.S.); (K.I.)
- Oral Health Science Center, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan
| | - Atsushi Saito
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (N.M.); (S.M.); (T.M.); (F.S.); (K.I.)
- Oral Health Science Center, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan
| |
Collapse
|
2
|
Zhang S, Liu J, Feng F, Jia Y, Xu F, Wei Z, Zhang M. Rational design of viscoelastic hydrogels for periodontal ligament remodeling and repair. Acta Biomater 2024; 174:69-90. [PMID: 38101557 DOI: 10.1016/j.actbio.2023.12.017] [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: 08/16/2023] [Revised: 11/14/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
The periodontal ligament (PDL) is a distinctive yet critical connective tissue vital for maintaining the integrity and functionality of tooth-supporting structures. However, PDL repair poses significant challenges due to the complexity of its mechanical microenvironment encompassing hard-soft-hard tissues, with the viscoelastic properties of the PDL being of particular interest. This review delves into the significant role of viscoelastic hydrogels in PDL regeneration, underscoring their utility in simulating biomimetic three-dimensional microenvironments. We review the intricate relationship between PDL and viscoelastic mechanical properties, emphasizing the role of tissue viscoelasticity in maintaining mechanical functionality. Moreover, we summarize the techniques for characterizing PDL's viscoelastic behavior. From a chemical bonding perspective, we explore various crosslinking methods and characteristics of viscoelastic hydrogels, along with engineering strategies to construct viscoelastic cell microenvironments. We present a detailed analysis of the influence of the viscoelastic microenvironment on cellular mechanobiological behavior and fate. Furthermore, we review the applications of diverse viscoelastic hydrogels in PDL repair and address current challenges in the field of viscoelastic tissue repair. Lastly, we propose future directions for the development of innovative hydrogels that will facilitate not only PDL but also systemic ligament tissue repair. STATEMENT OF SIGNIFICANCE.
Collapse
Affiliation(s)
- Songbai Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of General Dentistry and Emergency, School of Stomatology, Fourth Military Medical University, Xi'an 710032, PR China; The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Jingyi Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Fan Feng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of General Dentistry and Emergency, School of Stomatology, Fourth Military Medical University, Xi'an 710032, PR China
| | - Yuanbo Jia
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Zhao Wei
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an 710049, PR China.
| | - Min Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of General Dentistry and Emergency, School of Stomatology, Fourth Military Medical University, Xi'an 710032, PR China.
| |
Collapse
|
3
|
Santos MS, dos Santos AB, Carvalho MS. New Insights in Hydrogels for Periodontal Regeneration. J Funct Biomater 2023; 14:545. [PMID: 37998114 PMCID: PMC10672517 DOI: 10.3390/jfb14110545] [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: 08/22/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/25/2023] Open
Abstract
Periodontitis is a destructive inflammatory disease characterized by microbial infection that damages the tissues supporting the tooth (alveolar bone, gingiva, periodontal ligament, and cementum), ultimately resulting in the loss of teeth. The ultimate goal of periodontal therapy is to achieve the regeneration of all of the periodontal tissues. Thus, tissue engineering approaches have been evolving from simple membranes or grafts to more complex constructs. Hydrogels are highly hydrophilic polymeric networks with the ability to simulate the natural microenvironment of cells. In particular, hydrogels offer several advantages when compared to other forms of scaffolds, such as tissue mimicry and sustained drug delivery. Moreover, hydrogels can maintain a moist environment similar to the oral cavity. Hydrogels allow for precise placement and retention of regenerative materials at the defect site, minimizing the potential for off-target effects and ensuring that the treatment is focused on the specific defect site. As a mechanism of action, the sustained release of drugs presented by hydrogels allows for control of the disease by reducing the inflammation and attracting host cells to the defect site. Several therapeutic agents, such as antibiotics, anti-inflammatory and osteogenic drugs, have been loaded into hydrogels, presenting effective benefits in periodontal health and allowing for sustained drug release. This review discusses the causes and consequences of periodontal disease, as well as the advantages and limitations of current treatments applied in clinics. The main components of hydrogels for periodontal regeneration are discussed focusing on their different characteristics, outcomes, and strategies for drug delivery. Novel methods for the fabrication of hydrogels are highlighted, and clinical studies regarding the periodontal applications of hydrogels are reviewed. Finally, limitations in current research are discussed, and potential future directions are proposed.
Collapse
Affiliation(s)
- Mafalda S. Santos
- Department of Bioengineering, iBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.S.S.); (A.B.d.S.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Alexandra B. dos Santos
- Department of Bioengineering, iBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.S.S.); (A.B.d.S.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Marta S. Carvalho
- Department of Bioengineering, iBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.S.S.); (A.B.d.S.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| |
Collapse
|
4
|
Li T, Wang H, Jiang Y, Chen S, Huang D, Wu Z, Yin X, Zhou C, Li Y, Zou S. LITTIP/Lgr6/HnRNPK complex regulates cementogenesis via Wnt signaling. Int J Oral Sci 2023; 15:33. [PMID: 37558690 PMCID: PMC10412570 DOI: 10.1038/s41368-023-00237-0] [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: 02/05/2023] [Revised: 06/25/2023] [Accepted: 06/26/2023] [Indexed: 08/11/2023] Open
Abstract
Orthodontically induced tooth root resorption (OIRR) is a serious complication during orthodontic treatment. Stimulating cementum repair is the fundamental approach for the treatment of OIRR. Parathyroid hormone (PTH) might be a potential therapeutic agent for OIRR, but its effects still lack direct evidence, and the underlying mechanisms remain unclear. This study aims to explore the potential involvement of long noncoding RNAs (lncRNAs) in mediating the anabolic effects of intermittent PTH and contributing to cementum repair, as identifying lncRNA-disease associations can provide valuable insights for disease diagnosis and treatment. Here, we showed that intermittent PTH regulates cell proliferation and mineralization in immortalized murine cementoblast OCCM-30 via the regulation of the Wnt pathway. In vivo, daily administration of PTH is sufficient to accelerate root regeneration by locally inhibiting Wnt/β-catenin signaling. Through RNA microarray analysis, lncRNA LITTIP (LGR6 intergenic transcript under intermittent PTH) is identified as a key regulator of cementogenesis under intermittent PTH. Chromatin isolation by RNA purification (ChIRP) and RNA immunoprecipitation (RIP) assays revealed that LITTIP binds to mRNA of leucine-rich repeat-containing G-protein coupled receptor 6 (LGR6) and heterogeneous nuclear ribonucleoprotein K (HnRNPK) protein. Further co-transfection experiments confirmed that LITTIP plays a structural role in the formation of the LITTIP/Lgr6/HnRNPK complex. Moreover, LITTIP is able to promote the expression of LGR6 via the RNA-binding protein HnRNPK. Collectively, our results indicate that the intermittent PTH administration accelerates root regeneration via inhibiting Wnt pathway. The lncRNA LITTIP is identified to negatively regulate cementogenesis, which activates Wnt/β-catenin signaling via high expression of LGR6 promoted by HnRNPK.
Collapse
Affiliation(s)
- Tiancheng Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai, China
| | - Han Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yukun Jiang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shuo Chen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Danyuan Huang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zuping Wu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xing Yin
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chenchen Zhou
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuyu Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China.
| | - Shujuan Zou
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China.
| |
Collapse
|
5
|
Zhang S, Ding L, Chen G, Zhang J, Ge W, Qu Y. Enhanced bone regeneration via local low-dose delivery of PTH 1-34 in a composite hydrogel. Front Bioeng Biotechnol 2023; 11:1209752. [PMID: 37465690 PMCID: PMC10352085 DOI: 10.3389/fbioe.2023.1209752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/20/2023] [Indexed: 07/20/2023] Open
Abstract
Introducing bone regeneration-promoting factors into scaffold materials to improve the bone induction property is crucial in the fields of bone tissue engineering and regenerative medicine. This study aimed to develop a Sr-HA/PTH1-34-loaded composite hydrogel system with high biocompatibility. Teriparatide (PTH1-34) capable of promoting bone regeneration was selected as the bioactive factor. Strontium-substituted hydroxyapatite (Sr-HA) was introduced into the system to absorb PTH1-34 to promote the bioactivity and delay the release cycle. PTH1-34-loaded Sr-HA was then mixed with the precursor solution of the hydrogel to prepare the composite hydrogel as bone-repairing material with good biocompatibility and high mechanical strength. The experiments showed that Sr-HA absorbed PTH1-34 and achieved the slow and effective release of PTH1-34. In vitro biological experiments showed that the Sr-HA/PTH1-34-loaded hydrogel system had high biocompatibility, allowing the good growth of cells on the surface. The measurement of alkaline phosphatase activity and osteogenesis gene expression demonstrated that this composite system could promote the differentiation of MC3T3-E1 cells into osteoblasts. In addition, the in vivo cranial bone defect repair experiment confirmed that this composite hydrogel could promote the regeneration of new bones. In summary, Sr-HA/PTH1-34 composite hydrogel is a highly promising bone repair material.
Collapse
Affiliation(s)
- Shanyong Zhang
- Department of Spine Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Lei Ding
- Department of Rehabilitation, The Second Hospital of Jilin University, Changchun, China
| | - Gaoyang Chen
- Shenzhen Key Laboratory of Musculoskeletal Tissue Reconstruction and Function Restoration, Department of Hand Surgery, Shenzhen People’s Hospital, The First Affiliated Hospital of Southern University of Science and Technology, Jinan University Second College of Medicine, Shenzhen, China
| | - Jiayin Zhang
- Department of Spine Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Wanbao Ge
- Department of Spine Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Yuan Qu
- Department of Spine Surgery, The Second Hospital of Jilin University, Changchun, China
| |
Collapse
|
6
|
Zhang Z, Bi F, Guo W. Research Advances on Hydrogel-Based Materials for Tissue Regeneration and Remineralization in Tooth. Gels 2023; 9:gels9030245. [PMID: 36975694 PMCID: PMC10048036 DOI: 10.3390/gels9030245] [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: 02/19/2023] [Revised: 03/14/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
Tissue regeneration and remineralization in teeth is a long-term and complex biological process, including the regeneration of pulp and periodontal tissue, and re-mineralization of dentin, cementum and enamel. Suitable materials are needed to provide cell scaffolds, drug carriers or mineralization in this environment. These materials need to regulate the unique odontogenesis process. Hydrogel-based materials are considered good scaffolds for pulp and periodontal tissue repair in the field of tissue engineering due to their inherent biocompatibility and biodegradability, slow release of drugs, simulation of extracellular matrix, and the ability to provide a mineralized template. The excellent properties of hydrogels make them particularly attractive in the research of tissue regeneration and remineralization in teeth. This paper introduces the latest progress of hydrogel-based materials in pulp and periodontal tissue regeneration and hard tissue mineralization and puts forward prospects for their future application. Overall, this review reveals the application of hydrogel-based materials in tissue regeneration and remineralization in teeth.
Collapse
Affiliation(s)
- Zhijun Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Pediatric Dentistry, West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - Fei Bi
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Weihua Guo
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Pediatric Dentistry, West China School of Stomatology, Sichuan University, Chengdu 610041, China
- Yunnan Key Laboratory of Stomatology, The Affiliated Hospital of Stomatology, School of Stomatology, Kunming Medical University, Kunming 650500, China
| |
Collapse
|
7
|
Dai H, Yu Y, Han J, Luo J, Song C, Deng Z, Wu Y, Ke D, Xu J. A novel biologically hierarchical hydrogel with osteoblast precursor-targeting extracellular vesicles ameliorates bone loss in vivo via the sequential action of antagomiR-200b-3p and antagomiR-130b-3p. Cell Prolif 2023:e13426. [PMID: 36786008 PMCID: PMC10392057 DOI: 10.1111/cpr.13426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/10/2023] [Accepted: 02/02/2023] [Indexed: 02/15/2023] Open
Abstract
Osteoporotic fracture is a major health problem plaguing the ageing society, and improving its treatment is an urgent challenge. How to ameliorate bone loss determines the recovery of such fractures. Extracellular vesicle (EV)-loaded hydrogel has the capacity to treat osteoporotic fractures due to its pro-osteogenic property. And balancing proliferation and maturation of osteoblast precursors (OBPs) is of great significance to avoid OBP depletion, which is lacking in current treatment. Based on osteoblastogenic miRNAs, this study aimed to explore the efficacies of the combination of hierarchical hydrogel and EVs altering functional miRNAs level in bone loss. Through bioinformatics analyses, we screened out proliferative gene-targeting miR-200b-3p and osteogenic gene-targeting miR-130b-3p. And antagomiR-200b-3p (ant-200b) enhanced OBP proliferation, and antagomiR-130b-3p (ant-130b) promoted OBP differentiation. After confirming the directional effect of Fibronectin (Fn1) on OBPs, we prepared OBP-targeting EVs. Furthermore, encapsulation of two antagomiRNAs in EVs enhanced the respective effect of ant-200b and ant-130b. Notably, hierarchically injectable hydrogel exerted an effective function in promoting the sequential delivery of EVs-200b and EVs-130b. Importantly, hierarchical hydrogel containing dual EVs effectively ameliorated bone loss. Overall, hierarchical hydrogel based on two antagomiRNAs effectively improves bone loss in vivo due to its role in promoting OBP proliferation and maturation sequentially.
Collapse
Affiliation(s)
- Hanhao Dai
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Yunlong Yu
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China.,Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| | - Junyong Han
- Institute for Immunology, Fujian Academy of Medical Sciences, Fuzhou, China
| | - Jun Luo
- Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| | - Chao Song
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Zhibo Deng
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Yijing Wu
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Dianshan Ke
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China.,Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| | - Jie Xu
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China.,Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| |
Collapse
|
8
|
Deng R, Xie Y, Chan U, Xu T, Huang Y. Biomaterials and biotechnology for periodontal tissue regeneration: Recent advances and perspectives. J Dent Res Dent Clin Dent Prospects 2022; 16:1-10. [PMID: 35936933 PMCID: PMC9339747 DOI: 10.34172/joddd.2022.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 02/02/2022] [Indexed: 11/09/2022] Open
Abstract
Periodontal tissues are organized in a complex three-dimensional (3D) architecture, including the alveolar bone, cementum, and a highly aligned periodontal ligament (PDL). Regeneration is difficult due to the complex structure of these tissues. Currently, materials are developing rapidly, among which synthetic polymers and hydrogels have extensive applications. Moreover, techniques have made a spurt of progress. By applying guided tissue regeneration (GTR) to hydrogels and cell sheets and using 3D printing, a scaffold with an elaborate biomimetic structure can be constructed to guide the orientation of fibers. The incorporation of cells and biotic factors improves regeneration. Nevertheless, the current studies lack long-term effect tracking, clinical research, and in-depth mechanistic research. In summary, periodontal tissue engineering still has considerable room for development. The development of materials and techniques and an in-depth study of the mechanism will provide an impetus for periodontal regeneration.
Collapse
Affiliation(s)
- Rong Deng
- School of Stomatology, Jinan University, Guangdong, China
| | - Yuzheng Xie
- School of Stomatology, Jinan University, Guangdong, China
| | - Unman Chan
- School of Stomatology, Jinan University, Guangdong, China
| | - Tao Xu
- Department of Mechanical Engineering, Tsinghua University, Beijing, China
| | - Yue Huang
- School of Stomatology, Jinan University, Guangdong, China
| |
Collapse
|
9
|
Lyu P, Li B, Li P, Bi R, Cui C, Zhao Z, Zhou X, Fan Y. Parathyroid Hormone 1 Receptor Signaling in Dental Mesenchymal Stem Cells: Basic and Clinical Implications. Front Cell Dev Biol 2021; 9:654715. [PMID: 34760881 PMCID: PMC8573197 DOI: 10.3389/fcell.2021.654715] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 09/28/2021] [Indexed: 02/05/2023] Open
Abstract
Parathyroid hormone (PTH) and parathyroid hormone-related protein (PTHrP) are two peptides that regulate mineral ion homeostasis, skeletal development, and bone turnover by activating parathyroid hormone 1 receptor (PTH1R). PTH1R signaling is of profound clinical interest for its potential to stimulate bone formation and regeneration. Recent pre-clinical animal studies and clinical trials have investigated the effects of PTH and PTHrP analogs in the orofacial region. Dental mesenchymal stem cells (MSCs) are targets of PTH1R signaling and have long been known as major factors in tissue repair and regeneration. Previous studies have begun to reveal important roles for PTH1R signaling in modulating the proliferation and differentiation of MSCs in the orofacial region. A better understanding of the molecular networks and underlying mechanisms for modulating MSCs in dental diseases will pave the way for the therapeutic applications of PTH and PTHrP in the future. Here we review recent studies involving dental MSCs, focusing on relationships with PTH1R. We also summarize recent basic and clinical observations of PTH and PTHrP treatment to help understand their use in MSCs-based dental and bone regeneration.
Collapse
Affiliation(s)
- Ping Lyu
- State Key Laboratory of Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Bo Li
- State Key Laboratory of Oral Diseases, Department of Orthodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Peiran Li
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ruiye Bi
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chen Cui
- Guangdong Province Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong, China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases, Department of Orthodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Yi Fan
- State Key Laboratory of Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| |
Collapse
|
10
|
Najafi H, Jafari M, Farahavar G, Abolmaali SS, Azarpira N, Borandeh S, Ravanfar R. Recent advances in design and applications of biomimetic self-assembled peptide hydrogels for hard tissue regeneration. Biodes Manuf 2021; 4:735-756. [PMID: 34306798 PMCID: PMC8294290 DOI: 10.1007/s42242-021-00149-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/12/2021] [Indexed: 12/22/2022]
Abstract
Abstract The development of natural biomaterials applied for hard tissue repair and regeneration is of great importance, especially in societies with a large elderly population. Self-assembled peptide hydrogels are a new generation of biomaterials that provide excellent biocompatibility, tunable mechanical stability, injectability, trigger capability, lack of immunogenic reactions, and the ability to load cells and active pharmaceutical agents for tissue regeneration. Peptide-based hydrogels are ideal templates for the deposition of hydroxyapatite crystals, which can mimic the extracellular matrix. Thus, peptide-based hydrogels enhance hard tissue repair and regeneration compared to conventional methods. This review presents three major self-assembled peptide hydrogels with potential application for bone and dental tissue regeneration, including ionic self-complementary peptides, amphiphilic (surfactant-like) peptides, and triple-helix (collagen-like) peptides. Special attention is given to the main bioactive peptides, the role and importance of self-assembled peptide hydrogels, and a brief overview on molecular simulation of self-assembled peptide hydrogels applied for bone and dental tissue engineering and regeneration. Graphic abstract
Collapse
Affiliation(s)
- Haniyeh Najafi
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, 71345-1583 Shiraz, Iran
| | - Mahboobeh Jafari
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, 71345-1583 Shiraz, Iran
| | - Ghazal Farahavar
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, 71345-1583 Shiraz, Iran
| | - Samira Sadat Abolmaali
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, 71345-1583 Shiraz, Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, 71345-1583 Shiraz, Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Mohammad Rasoul-Allah Research Tower, 7193711351 Shiraz, Iran
| | - Sedigheh Borandeh
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, 71345-1583 Shiraz, Iran
- Polymer Technology Research Group, Department of Chemical and Metallurgical Engineering, Aalto University, 02152 Espoo, Finland
| | - Raheleh Ravanfar
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 USA
| |
Collapse
|
11
|
Murakami T, Matsugami D, Yoshida W, Imamura K, Bizenjima T, Seshima F, Saito A. Healing of Experimental Periodontal Defects Following Treatment with Fibroblast Growth Factor-2 and Deproteinized Bovine Bone Mineral. Biomolecules 2021; 11:biom11060805. [PMID: 34072351 PMCID: PMC8226676 DOI: 10.3390/biom11060805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/17/2022] Open
Abstract
The aim of this study was to investigate the effects of fibroblast growth factor (FGF)-2 used in combination with deproteinized bovine bone mineral (DBBM) on the healing of experimental periodontal defects. Periodontal defects created in rats were treated by FGF-2, DBBM, FGF-2 + DBBM, or left unfilled. Microcomputed tomography, histological, and immunohistochemical examinations were used to evaluate healing. In vitro cell viability/proliferation on DBBM with/without FGF-2 was assessed by WST-1. Cell behavior was analyzed using scanning electron and confocal laser scanning microscopy. Osteogenic differentiation was evaluated by staining with alkaline phosphatase and alizarin red. Bone volume fraction was significantly greater in FGF-2 and FGF-2 + DBBM groups than in other groups at 2 and 4 weeks postoperatively. In histological assessment, newly formed bone in FGF-2 and FGF-2 + DBBM groups appeared to be greater than other groups. Significantly greater levels of proliferating cell nuclear antigen-, vascular endothelial growth factor-, and osterix-positive cells were observed in FGF-2 and FGF-2 + DBBM groups compared to Unfilled group. In vitro, addition of FGF-2 to DBBM promoted cell viability/proliferation, attachment/spreading, and osteogenic differentiation. The combination therapy using FGF-2 and DBBM was similarly effective as FGF-2 alone in the healing of experimental periodontal defects. In certain bone defect configurations, the combined use of FGF-2 and DBBM may enhance healing via promotion of cell proliferation, angiogenesis, and osteogenic differentiation.
Collapse
Affiliation(s)
- Tasuku Murakami
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
| | - Daisuke Matsugami
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
- Oral Health Science Center, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan
| | - Wataru Yoshida
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
| | - Kentaro Imamura
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
- Oral Health Science Center, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan
| | - Takahiro Bizenjima
- Chiba Dental Center, Tokyo Dental College, Mihama-ku, Chiba 2618502, Japan;
| | - Fumi Seshima
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
| | - Atsushi Saito
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
- Oral Health Science Center, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan
- Correspondence:
| |
Collapse
|
12
|
Long noncoding RNA expression profiles in intermittent parathyroid hormone induced cementogenesis. Genomics 2020; 113:217-228. [PMID: 33309767 DOI: 10.1016/j.ygeno.2020.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 11/01/2020] [Accepted: 12/06/2020] [Indexed: 11/22/2022]
Abstract
The aim of this study was to explore the involvement of long noncoding RNAs (lncRNAs) during intermittent parathyroid hormone (PTH) induced cementogenesis. Expression profiles of lncRNAs and mRNAs were obtained using high-throughput microarray. Gene Ontology enrichment analysis, Kyoto Encyclopedia of Genes and Genomes pathway analysis, and coding-noncoding gene coexpression networks construction were performed. We identified 190 lncRNAs and 135 mRNAs that were differentially expressed during intermittent PTH-induced cementogenesis. In this process, the Wnt signaling pathway was negatively regulated, and eight lncRNAs were identified as possible core regulators of Wnt signaling. Based on the results of microarrray analysis, we further verified the repressed expression of Wnt signaling crucial components β-catenin, APC and Axin2. Above all, we speculated that lncRNAs may play important roles in PTH-induced cementogenesis via the negative regulation of Wnt pathway.
Collapse
|
13
|
Stutz C, Batool F, Petit C, Strub M, Kuchler-Bopp S, Benkirane-Jessel N, Huck O. Influence of parathyroid hormone on periodontal healing in animal models: A systematic review. Arch Oral Biol 2020; 120:104932. [PMID: 33113458 DOI: 10.1016/j.archoralbio.2020.104932] [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: 04/26/2020] [Revised: 07/10/2020] [Accepted: 09/21/2020] [Indexed: 12/09/2022]
Abstract
OBJECTIVES The purpose of this systematic review was to determine the potential interest of parathyroid hormone (PTH) as an adjunct to periodontal treatment based on studies performed in rodents. MATERIALS & METHODS Electronic databases (MEDLINE, Web of Science) were searched up to December 2019. Studies assessing the impact of PTH administration in experimental periodontitis in rodents have been identified. RESULTS Amongst the 247 identified articles, 10 met the inclusion criteria and were included in this systematic review. Experimental periodontitis was mainly induced by ligature placement or surgically with a dental bur. All studies considered bone healing after PTH administration at different frequencies as primary outcome. Results showed that an intermittent administration of PTH promoted bone healing and neovascularization. Nevertheless, a decrease of soft tissue inflammation was also observed. CONCLUSION Intermittent administration of PTH appears to enhance significantly periodontal healing and to promote alveolar bone regeneration. However, due to the risk of side effects, the development of scaffolds allowing its local and time-controlled delivery is of importance.
Collapse
Affiliation(s)
- Céline Stutz
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Fareeha Batool
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Catherine Petit
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France; Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France; Pôle de Médecine et de Chirurgie Bucco-Dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Marion Strub
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France; Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France; Pôle de Médecine et de Chirurgie Bucco-Dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Sabine Kuchler-Bopp
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Nadia Benkirane-Jessel
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Olivier Huck
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France; Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France; Pôle de Médecine et de Chirurgie Bucco-Dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
| |
Collapse
|
14
|
Matsugami D, Murakami T, Yoshida W, Imamura K, Bizenjima T, Seshima F, Saito A. Treatment with functionalized designer self-assembling peptide hydrogels promotes healing of experimental periodontal defects. J Periodontal Res 2020; 56:162-172. [PMID: 33022075 DOI: 10.1111/jre.12807] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/12/2020] [Accepted: 09/08/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND/OBJECTIVES It has been reported that self-assembling peptide (SAP) hydrogels with functionalized motifs enhance proliferation and migration of host cells. How these designer SAP hydrogels perform in the treatment of periodontal defects remains unknown. This study aimed to test the potential of local application of designer SAP hydrogels with two different functionalized motifs in the treatment of experimental periodontal defects. MATERIAL AND METHODS In vitro, viability/proliferation of rat periodontal ligament-derived cells (PDLCs) cultured on an SAP hydrogel RADA16 and RADA16 with functionalized motifs, PRG (integrin binding sequence) and PDS (laminin cell adhesion motif), was assessed. Cell morphology was analyzed by scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). In vivo, standardized periodontal defects were made mesially in the maxillary first molars of Wistar rats. Defects received RADA16, PRG, PDS or left unfilled. At 2 or 4 weeks postoperatively, healing was assessed by microcomputed tomography, histological and immunohistochemical methods. RESULTS Viability/proliferation of PDLCs was significantly greater on PRG than on RADA16 or PDS at 72 hours. rPDLCs in the PRG group showed enhanced elongations and cell protrusions. In vivo, at 4 weeks, bone volume fractions in the PRG and PDS groups were significantly greater than the RADA16 group. Histologically, bone formation was more clearly observed in the PRG and PDS groups compared with the RADA16 group. At 4 weeks, epithelial downgrowth in the hydrogel groups was significantly reduced compared to the Unfilled group. In Azan-Mallory staining, PDL-like bundles ran in oblique direction in the hydrogel groups. At 2 weeks, in the area near the root, proliferating cell nuclear antigen (PCNA)-positive cells were detected significantly more in the PRG group than other groups. At 4 weeks, in the middle part of the defect, a significantly greater level of vascular endothelial growth factor (VEGF)-positive cells and α-smooth muscle actin (SMA)-positive blood vessels were observed in the PRG group than in other groups. CONCLUSION The results indicate that local application of the functionalized designer SAP hydrogels, especially PRG, promotes periodontal healing by increasing cell proliferation and angiogenesis.
Collapse
Affiliation(s)
- Daisuke Matsugami
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan.,Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| | - Tasuku Murakami
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - Wataru Yoshida
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - Kentaro Imamura
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan.,Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| | | | - Fumi Seshima
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - Atsushi Saito
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan.,Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| |
Collapse
|
15
|
El-Sayed B, Davies RPW, El-Zehery RR, Ibrahim FM, Grawish ME, Kirkham J, El-Gendy R. An in-vivo Intraoral Defect Model for Assessing the Use of P 11-4 Self-Assembling Peptide in Periodontal Regeneration. Front Bioeng Biotechnol 2020; 8:559494. [PMID: 33117779 PMCID: PMC7550851 DOI: 10.3389/fbioe.2020.559494] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 08/31/2020] [Indexed: 12/02/2022] Open
Abstract
Periodontal disease is one of the most common diseases worldwide. It has a significant impact on oral health and subsequently the individual’s quality of life. However, optimal regeneration of periodontal tissues, using current treatments, has yet to be achieved. Peptide self-assembly has provided a step-change in nanobiotechnology and regenerative medicine fields. Our aim was to investigate the effects of a self-assembling peptide (SAP; P11-4) on periodontal regeneration in a preclinical model. Twenty-six bilateral maxillary critical-sized periodontal defects were created surgically in 13 rats. Defects on one side of the mouth were filled with P11-4 hydrogel; the contra-lateral defect was untreated (control). Rats were sacrificed immediately post-surgery (time 0) and after 2 and 4 weeks. Retrieved maxillae were processed for histological, immunohistochemical, and histomorphometric assessments. The results of histological analysis showed greater organization of periodontal fibers in defects treated with P11-4, at both time points, when compared to untreated defects. Histomorphometry showed that treated defects had both a significant increase in functional periodontal ligament length and a reduction in epithelial down growth after 4 weeks. At 2 weeks, treated defects showed a significant increase in expression of osteocalcin and osteoprotegerin as judged by immunohistochemistry. Also, a significantly higher osteoprotegerin/RANKL ratio was shown in treated defects. In conclusion, the results demonstrated enhanced regeneration of periodontal tissues when SAP P11-4 was used to fill periodontal defects in rats. The findings of this study suggest that SAP P11-4 is a promising novel candidate for periodontal regenerative therapy. Further investigations are required for optimization before clinical use.
Collapse
Affiliation(s)
- Basmah El-Sayed
- Division of Oral Biology, School of Dentistry, University of Leeds, Leeds, United Kingdom.,Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | | | - Rehab R El-Zehery
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - Fatma Mohamed Ibrahim
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - Mohammed E Grawish
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.,Department of Oral Biology, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Mansoura, Egypt
| | - Jennifer Kirkham
- Division of Oral Biology, School of Dentistry, University of Leeds, Leeds, United Kingdom
| | - Reem El-Gendy
- Division of Oral Biology, School of Dentistry, University of Leeds, Leeds, United Kingdom.,Department of Oral Pathology, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt
| |
Collapse
|
16
|
A therapeutic oxygen carrier isolated from Arenicola marina decreased P. gingivalis induced inflammation and tissue destruction. Sci Rep 2020; 10:14745. [PMID: 32901057 PMCID: PMC7479608 DOI: 10.1038/s41598-020-71593-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 08/17/2020] [Indexed: 12/17/2022] Open
Abstract
The control of inflammation and infection is crucial for periodontal wound healing and regeneration. M101, an oxygen carrier derived from Arenicola marina, was tested for its anti-inflammatory and anti-infectious potential based on its anti-oxidative and tissue oxygenation properties. In vitro, no cytotoxicity was observed in oral epithelial cells (EC) treated with M101. M101 (1 g/L) reduced significantly the gene expression of pro-inflammatory markers such as TNF-α, NF-κΒ and RANKL in P. gingivalis-LPS stimulated and P. gingivalis-infected EC. The proteome array revealed significant down-regulation of pro-inflammatory cytokines (IL-1β and IL-8) and chemokine ligands (RANTES and IP-10), and upregulation of pro-healing mediators (PDGF-BB, TGF-β1, IL-10, IL-2, IL-4, IL-11 and IL-15) and, extracellular and immune modulators (TIMP-2, M-CSF and ICAM-1). M101 significantly increased the gene expression of Resolvin-E1 receptor. Furthermore, M101 treatment reduced P. gingivalis biofilm growth over glass surface, observed with live/dead analysis and by decreased P. gingivalis 16 s rRNA expression (51.7%) (p < 0.05). In mice, M101 reduced the clinical abscess size (50.2%) in P. gingivalis-induced calvarial lesion concomitant with a decreased inflammatory score evaluated through histomorphometric analysis, thus, improving soft tissue and bone healing response. Therefore, M101 may be a novel therapeutic agent that could be beneficial in the management of P. gingivalis associated diseases.
Collapse
|