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Alawy SB, El Meligy MAA, Salem EM, Alghonemy WY. Impact of concentrated growth factor (CGF) injection on acceleration of orthodontic tooth movement in rabbits. BMC Oral Health 2024; 24:783. [PMID: 38997695 PMCID: PMC11245833 DOI: 10.1186/s12903-024-04520-2] [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: 04/03/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024] Open
Abstract
BACKGROUND The present study aimed to assess how a concentrated growth factor (CGF) injection affects the rate of orthodontic tooth movement in rabbits. METHODS This experimental investigation employed a split-mouth configuration. Before orthodontic mesialization of the maxillary first molars, CGF was prepared and administered using submucosal injections on the buccal and palatal sides of the maxillary first molars in one randomly assigned quadrant. The opposite quadrant was used as a control. The study examined four time points:1, 2, 3, and 4 weeks. The measurement of tooth movement was conducted at each follow-up point using a digital caliper. The rabbits were euthanized, and their maxillary segments, specifically the maxillary first molars, were studied histologically to identify any alterations occurring on both the tension and compression sides. RESULTS Significant tooth movement was observed in the experimental sides versus control sides in the second, third, and fourth week of follow-up periods (p ≤ 0.05). Histologically, on the compression side, the CGF group showed bone resorption and periodontal ligament active reactions from the first week and continued throughout the next three weeks. Also, on the tension side, the CGF group depicted cementoblastic and osteoblastic activities from the first week followed by fibroblastic activities from the second week and all activities continued till the fourth week. CONCLUSIONS CGF has the potential to effectively enhance orthodontic tooth movement without adverse clinical or histological effects.
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Affiliation(s)
- Safa B Alawy
- Orthodontics, Faculty of Dentistry, Tanta University, Tanta, Egypt
| | - Mona Al Ahmady El Meligy
- Oral Medicine, Periodontology, Oral Diagnosis and Oral Radiology Faculty of Dentistry, Tanta University, Tanta, Egypt
| | - Eman M Salem
- Oral Biology, Faculty of Dentistry, Pharos University in Alexandria, P. O. Box 37, Sidi Gaber, Alexandria, Egypt.
| | - Wafaa Yahia Alghonemy
- Department of Basic Medical and Dental Sciences, Faculty of Dentistry, Zarqa University, Zarqa, 13110, Jordan
- Oral Biology Department, Faculty of Dentistry, Tanta University, Tanta, 31527, Egypt
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2
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Astaneh ME, Noori F, Fereydouni N. Curcumin-loaded scaffolds in bone regeneration. Heliyon 2024; 10:e32566. [PMID: 38961905 PMCID: PMC11219509 DOI: 10.1016/j.heliyon.2024.e32566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 06/05/2024] [Accepted: 06/05/2024] [Indexed: 07/05/2024] Open
Abstract
In recent years, there has been a notable surge in the development of engineered bone scaffolds intended for the repair of bone defects. While autografts and allografts have traditionally served as the primary methods in bone tissue engineering, their inherent limitations have spurred the exploration of novel avenues in biomedical implant development. The emergence of bone scaffolds not only facilitates bone reconstruction but also offers a platform for the targeted delivery of therapeutic agents. There exists a pervasive interest in leveraging various drugs, proteins, growth factors, and biomolecules with osteogenic properties to augment bone formation, as the enduring side effects associated with current clinical modalities necessitate the pursuit of safer alternatives. Curcumin, the principal bioactive compound found in turmeric, has demonstrated notable efficacy in regulating the proliferation and differentiation of bone cells while promoting bone formation. Nevertheless, its utility is hindered by restricted water solubility and poor bioavailability. Strategies aimed at enhancing the solubility, stability, and bioavailability of curcumin, including formulation techniques such as liposomes and nanoparticles or its complexation with metals, have been explored. This investigation is dedicated to exploring the impact of curcumin on the proliferation, differentiation, and migration of osteocytes, osteoblasts, and osteoclasts.
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Affiliation(s)
- Mohammad Ebrahim Astaneh
- Department of Anatomical Sciences, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
- Department of Tissue Engineering, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
- Student Research Committee, Fasa University of Medical Sciences, Fasa, Iran
| | - Fariba Noori
- Department of Tissue Engineering, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
- Student Research Committee, Fasa University of Medical Sciences, Fasa, Iran
| | - Narges Fereydouni
- Department of Tissue Engineering, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
- Student Research Committee, Fasa University of Medical Sciences, Fasa, Iran
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
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3
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Tangporncharoen R, Silathapanasakul A, Tragoonlugkana P, Pruksapong C, Tawonsawatruk T, Supokawej A. The extracts of osteoblast developed from adipose-derived stem cell and its role in osteogenesis. J Orthop Surg Res 2024; 19:255. [PMID: 38650022 PMCID: PMC11034088 DOI: 10.1186/s13018-024-04747-3] [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: 02/20/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024] Open
Abstract
Cell-based therapy has become an achievable choice in regenerative medicines, particularly for musculoskeletal disorders. Adipose-derived stem cells (ASCs) are an outstanding resource because of their ability and functions. Nevertheless, the use of cells for treatment comes with difficulties in operation and safety. The immunological barrier is also a major limitation of cell therapy, which can lead to unexpected results. Cell-derived products, such as cell extracts, have gained a lot of attention to overcome these limitations. The goal of this study was to optimize the production of ASC-osteoblast extracts as well as their involvement in osteogenesis. The extracts were prepared using a freeze-thaw method with varying temperatures and durations. Overall, osteogenic-associated proteins and osteoinductive potential of the extracts prepared from the osteogenic-induced ASCs were assessed. Our results demonstrated that the freeze-thaw approach is practicable for cell extracts production, with minor differences in temperature and duration having no effect on protein concentration. The ASC-osteoblast extracts contain a significant level of essential specialized proteins that promote osteogenicity. Hence, the freeze-thaw method is applicable for extract preparation and ASC-osteoblast extracts may be beneficial as an optional facilitating biologics in bone anabolic treatment and bone regeneration.
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Affiliation(s)
- Rattanawan Tangporncharoen
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Atiruj Silathapanasakul
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Patcharapa Tragoonlugkana
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Chatchai Pruksapong
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Pramongkutklao College of Medicine, Bangkok, 10400, Thailand
| | - Tulyapruek Tawonsawatruk
- Department of Orthopaedics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Aungkura Supokawej
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand.
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Liu Y, Wang L, Dou X, Du M, Min S, Zhu B, Liu X. Osteogenesis or Apoptosis-Twofold Effects of Zn 2+ on Bone Marrow Mesenchymal Stem Cells: An In Vitro and In Vivo Study. ACS OMEGA 2024; 9:10945-10957. [PMID: 38463263 PMCID: PMC10918815 DOI: 10.1021/acsomega.3c10344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/08/2024] [Accepted: 02/13/2024] [Indexed: 03/12/2024]
Abstract
Zinc (Zn) is a bioabsorbable metal that shows great potential as an implant material for orthopedic applications. Suitable concentrations of zinc ions promote osteogenesis, while excess zinc ions cause apoptosis. As a result, the conflicting impacts of Zn2+ concentration on osteogenesis could prove to be significant problems for the creation of novel materials. This study thoroughly examined the cell viability, proliferation, and osteogenic differentiation of rat bone marrow mesenchymal stem cells (rBMSCs) cultured in various concentrations of Zn2+ in vitro and validated the osteogenesis effects of zinc implantation in vivo. The effective promotion of cell survival, proliferation, migration, and osteogenic differentiation of bone marrow mesenchymal stem cell (BMSCs) may be achieved at a low concentration of Zn2+ (125 μM). The excessively high concentration of zinc ions (>250 μM) not only reduces BMSCs' viability and proliferation but also causes them to suffer apoptosis due to the disturbed zinc homeostasis and excessive Zn2+. Moreover, transcriptome sequencing was used to examine the underlying mechanisms of zinc-induced osteogenic differentiation with particular attention paid to the PI3K-AKT and TGF-β pathways. The present investigation elucidated the dual impacts of Zn2+ microenvironments on the osteogenic characteristics of rBMSCs and the associated processes and might offer significant insights for refining the blueprint for zinc-based biomaterials.
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Affiliation(s)
- Yu Liu
- Department
of Orthopaedics, Peking University Third
Hospital, Beijing 100191, P. R. China
- Beijing
Key Laboratory of Spinal Disease Research, Beijing 100191, P. R. China
- Engineering
Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, P. R. China
| | - Linbang Wang
- Department
of Orthopaedics, Peking University Third
Hospital, Beijing 100191, P. R. China
- Beijing
Key Laboratory of Spinal Disease Research, Beijing 100191, P. R. China
- Engineering
Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, P. R. China
| | - Xinyu Dou
- Department
of Orthopaedics, Peking University Third
Hospital, Beijing 100191, P. R. China
- Beijing
Key Laboratory of Spinal Disease Research, Beijing 100191, P. R. China
- Engineering
Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, P. R. China
| | - Mingze Du
- Department
of Sports Medicine, Peking University Third
Hospital, Beijing 100191, P. R. China
- Beijing
Key Laboratory of Sports Injuries, Beijing 100191, P. R. China
- Engineering
Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, P. R. China
| | - Shuyuan Min
- Department
of Orthopaedics, Peking University Third
Hospital, Beijing 100191, P. R. China
- Beijing
Key Laboratory of Spinal Disease Research, Beijing 100191, P. R. China
- Engineering
Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, P. R. China
| | - Bin Zhu
- Department
of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P. R. China
| | - Xiaoguang Liu
- Department
of Orthopaedics, Peking University Third
Hospital, Beijing 100191, P. R. China
- Beijing
Key Laboratory of Spinal Disease Research, Beijing 100191, P. R. China
- Engineering
Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, P. R. China
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Li H, Zhang X, Ameer KA, Zhang X, Du W, Mei S, Li X. Clinical observation of concentrated growth factor (CGF) combined with iliac cancellous bone and composite bone material graft on postoperative osteogenesis and inflammation in the repair of extensive mandibular defects. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101472. [PMID: 37061040 DOI: 10.1016/j.jormas.2023.101472] [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: 04/12/2023] [Accepted: 04/12/2023] [Indexed: 04/17/2023]
Abstract
PURPOSE To evaluate the effects of concentrated growth factor (CGF), combined with a mixture of iliac cancellous and composite bone materials, on the repair of extensive mandibular defects. PATIENTS AND METHODS This clinical trial involved patients with mandibular defects caused by large cystic lesions. The test group comprised 16 patients who underwent CGF combined with iliac cancellous bone and composite bone materials to repair extensive mandibular defects, whereas the control group comprised eight patients who underwent vascularised free fibula grafts for mandibular segmental defects. Postoperative exudatum was collected from patients on the 1st, 2nd, 3rd, and 4th days postoperatively, and osteogenic factor, including alkaline phosphatase (ALP), osteocalcin (BGP), and procollagen type I N-terminal propeptide (PINP), and inflammatory cytokines were performed. Additionally, regular cone beam computed tomography (CBCT) scans were conducted before and after surgery. RESULTS On postoperative days 1-4, the expression levels of ALP, BGP, and PINP were higher in the test group, while those of IL-1α, IL-1β, IL-6, IL-8, and TNF-α, which were identified as co-differentially expressing inflammatory cytokines, were all down-regulated in the exudatum of the test group. Regular CBCT radiological scans revealed a significant osteogenic effect in the test group. CONCLUSION The use of CGF combined with iliac cancellous bone and composite bone materials to repair extensive mandibular jaw defects facilitates bone formation and reductions in inflammation in the defect area in the short term, which deserves further research in clinical practice.
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Affiliation(s)
- Haiyang Li
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Xiaoyan Zhang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Khan Anas Ameer
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Xiao Zhang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Wenya Du
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Shuang Mei
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Xiangjun Li
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China.
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Luo Y, Liu H, Zhang Y, Liu Y, Liu S, Liu X, Luo E. Metal ions: the unfading stars of bone regeneration-from bone metabolism regulation to biomaterial applications. Biomater Sci 2023; 11:7268-7295. [PMID: 37800407 DOI: 10.1039/d3bm01146a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
In recent years, bone regeneration has emerged as a remarkable field that offers promising guidance for treating bone-related diseases, such as bone defects, bone infections, and osteosarcoma. Among various bone regeneration approaches, the metal ion-based strategy has surfaced as a prospective candidate approach owing to the extensive regulatory role of metal ions in bone metabolism and the diversity of corresponding delivery strategies. Various metal ions can promote bone regeneration through three primary strategies: balancing the effects of osteoblasts and osteoclasts, regulating the immune microenvironment, and promoting bone angiogenesis. In the meantime, the complex molecular mechanisms behind these strategies are being consistently explored. Moreover, the accelerated development of biomaterials broadens the prospect of metal ions applied to bone regeneration. This review highlights the potential of metal ions for bone regeneration and their underlying mechanisms. We propose that future investigations focus on refining the clinical utilization of metal ions using both mechanistic inquiry and materials engineering to bolster the clinical effectiveness of metal ion-based approaches for bone regeneration.
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Affiliation(s)
- Yankun Luo
- 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 610041, Sichuan, China
| | - Hanghang Liu
- 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 610041, Sichuan, China
- Department of Emergency, West China Hospital of Stomatology, Sichuan University, No. 14, Section 3, Renmin Nanlu, Chengdu, Sichuan, 610041, People's Republic of China
| | - Yaowen Zhang
- 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 610041, Sichuan, China
| | - Yao Liu
- 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 610041, Sichuan, China
- Department of Oral Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Shibo Liu
- 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 610041, Sichuan, China
- Department of Oral Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Xian Liu
- 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 610041, Sichuan, China
- Department of Oral Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - En Luo
- 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 610041, Sichuan, China
- Department of Oral Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
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7
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Liu Y, Zhao L, He X, Shen Y, Wang N, Hu S, Xu J, Zhao Q, Zhang Q, Qin L, Zhang Q. Jintiange proteins promote osteogenesis and inhibit apoptosis of osteoblasts by enhancing autophagy via PI3K/AKT and ER stress pathways. JOURNAL OF ETHNOPHARMACOLOGY 2023; 311:116399. [PMID: 36997131 DOI: 10.1016/j.jep.2023.116399] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/07/2023] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tiger bone, which had long been used in traditional Chinese medicine, had the action of removing wind and alleviating pain, strengthening the sinews and bones, and often used to treat bone impediment, and atrophic debility of bones in TCM clinical practice. As a substitute of natural bone tiger, artificial tiger bone Jintiange (JTG), has been approved by the State Food and Drug Administration of China for relief the symptom of osteoporosis, such as lumbago and back pain, lassitude in loin and legs, flaccidity and weakness legs, and walk with difficulty based on TCM theory. JTG has similar chemical profile to natural tiger bone, and contains mineral substance, peptides and proteins, and has been shown to protect bone loss in ovariectomized mice and exert the regulatory effects on osteoblast and osteoclast activities. But how the peptides and proteins in JTG modulate bone formation remains unclear. AIM To investigate the stimulating effects of JTG proteins on osteogenesis and explore the possible underlying mechanisms. MATERIALS AND METHODS JTG proteins were prepared from JTG Capsules by extracting calcium, phosphorus and other inorganic elements using SEP-PaktC18 desalting column. MC3T3-E1 cells were treated with JTG proteins to evaluate their effects and explore the underlying mechanisms. Osteoblast proliferation was detected by CCK-8 method. ALP activity was detected using a relevant assay kit, and bone mineralized nodules were stained with alizarin red-Tris-HCl solution. Cell apoptosis was analyzed by flow cytometry. Autophagy was observed by MDC staining, and autophagosomes were observed by TEM. Nuclear translocations of LC3 and CHOP were detected by immunofluorescence and observed under a laser confocal microscope. The expression of key proteins related to osteogenesis, apoptosis, autophagy and PI3K/AKT and ER stress pathways was analyzed by Western Blot analysis. RESULTS JTG proteins improved osteogenesis as evidenced by the alteration of proliferation, differentiation and mineralization of MC3T3-E1 osteoblasts, inhibited their apoptosis, and enhanced autophagosome formation and autophagy. They also regulated the expression of key proteins of PI3K/AKT and ER stress pathways. In addition, PI3K/AKT and ER stress pathway inhibitors could reverse the regulatory effects of JTG proteins on osteogenesis, apoptosis, autophagy and PI3K/AKT and ER stress pathways. CONCLUSION JTG proteins increased the osteogenesis and inhibited osteoblast apoptosis by enhancing autophagy via PI3K/AKT and ER stress signaling pathways.
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Affiliation(s)
- Yuling Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Luying Zhao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Xinyunxi He
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yi Shen
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Na Wang
- Ginwa Enterprise (Group) INC, Xi'an, 710069, China
| | - Sijing Hu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jinlong Xu
- The 969th Hospital of the PLA Joint Logistics Support Forces, Hohhot, 010051, China
| | - Qiming Zhao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Quanlong Zhang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Luping Qin
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Qiaoyan Zhang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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Zeng Q, Zhou C, Li M, Qiu Y, Wei X, Liu H. Concentrated growth factor combined with iRoot BP Plus promotes inflamed pulp repair: an in vitro and in vivo study. BMC Oral Health 2023; 23:225. [PMID: 37076830 PMCID: PMC10114309 DOI: 10.1186/s12903-023-02903-5] [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: 01/28/2023] [Accepted: 03/21/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND Platelet concentrates combined with calcium silicate cements may promote reparative dentin formation. However, few studies have reported their effect on dental pulp inflammation. This study aimed to evaluate the effects of concentrated growth factor (CGF) combined with iRoot BP Plus on inflammatory human dental pulp stem cells (hDPSCs) in vitro and inflamed pulp in rats in vivo. METHODS The proliferation of LPS-stimulated hDPSCs treated with 50% CGF with/without 25% iRoot BP Plus was evaluated using Cell Counting Kit-8 on days 1, 4 and 7. The expression of genes associated with inflammation on day 1 and differentiation on day 14 was analysed by real-time polymerase chain reaction. The exposed pulp of rat maxillary molars was injected with 10 mg/mL LPS and directly capped with CGF membrane with/without iRoot BP Plus extract for 1, 7 and 28 days. The teeth were subjected to histologic analyses and immunohistochemistry. RESULTS The proliferation rates of the inflammatory hDPSCs after the combination treatment were significantly higher than those after the other treatments on days 4 and 7 (P < 0.05). IL-1β, IL-6, and TNF-α levels were increased in inflammatory hDPSCs but decreased after treatment with CGF combined with iRoot BP Plus extract, whereas IL-4 and IL-10 showed the opposite expression patterns. Expression of the odontogenesis-related genes OCN, Runx2, and ALP was dramatically enhanced by combined treatment with CGF and iRoot BP Plus extract. In rat pulp, the average inflammation scores of the CGF and CGF-iRoot BP Plus groups significantly decreased in comparison with those of the LPS group (P < 0.05), and the CGF-iRoot BP Plus group had more reparative dentin than the CGF and BP groups. Immunohistochemical staining showed fewer M1 macrophages on day 1 and more M2 macrophages on day 7 in the CGF-iRoot BP Plus group than in the other groups. CONCLUSIONS The combination of CGF and iRoot BP Plus showed a synergistic effect on anti-inflammatory potential and promoted greater pulp healing than CGF or iRoot BP Plus alone.
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Affiliation(s)
- Qian Zeng
- Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Can Zhou
- Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Mengjie Li
- Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Yu Qiu
- Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - Xi Wei
- Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, China.
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China.
| | - Hongyan Liu
- Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, China.
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China.
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9
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Influence of Xenogeneic and Alloplastic Carriers for Bone Augmentation on Human Unrestricted Somatic Stem Cells. MATERIALS 2022; 15:ma15144779. [PMID: 35888245 PMCID: PMC9317635 DOI: 10.3390/ma15144779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/30/2022] [Accepted: 07/04/2022] [Indexed: 01/25/2023]
Abstract
Alloplastic and xenogeneic bone grafting materials are frequently used for bone augmentation. The effect of these materials on precursor cells for bone augmentation is yet to be determined. The aim of this study was to ascertain, in vitro, how augmentation materials influence the growth rates and viability of human unrestricted somatic stem cells. The biocompatibility of two xenogeneic and one alloplastic bone graft was tested using human unrestricted somatic stem cells (USSCs). Proliferation, growth, survival and attachment of unrestricted somatic stem cells were monitored after 24 h, 48 h and 7 days. Furthermore, cell shape and morphology were evaluated by SEM. Scaffolds were assessed for their physical properties by Micro-CT imaging. USSCs showed distinct proliferation on the different carriers. Greatest proliferation was observed on the xenogeneic carriers along with improved viability of the cells. Pore sizes of the scaffolds varied significantly, with the xenogeneic materials providing greater pore sizes than the synthetic inorganic material. Unrestricted somatic stem cells in combination with a bovine collagenous bone block seem to be very compatible. A scaffold’s surface morphology, pore size and bioactive characteristics influence the proliferation, attachment and viability of USSCs.
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10
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Liu J, Yao Y, Huang J, Sun H, Pu Y, Tian M, Zheng M, He H, Li Z. Comprehensive analysis of lncRNA-miRNA-mRNA networks during osteogenic differentiation of bone marrow mesenchymal stem cells. BMC Genomics 2022; 23:425. [PMID: 35672672 PMCID: PMC9172120 DOI: 10.1186/s12864-022-08646-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 05/19/2022] [Indexed: 11/15/2022] Open
Abstract
Background Long non-coding RNA (lncRNA) plays crucial role in osteogenic differentiation of bone marrow mesenchymal stem cells (BMMSCs), involving in regulation of competing endogenous RNA (ceRNA) mechanisms and conduction of signaling pathways. However, its mechanisms are poorly understood. This study aimed to investigate lncRNAs, miRNAs and mRNAs expression profiles in rat BMMSCs (rBMMSCs) osteogenic differentiation, screen the potential key lncRNA-miRNA-mRNA networks, explore the putative functions and identify the key molecules, as the basis of studying potential mechanism of rBMMSCs osteogenic differentiation driven by lncRNA, providing molecular targets for the management of bone defect. Methods High-throughput RNA sequencing (RNA-seq) was used to determine lncRNAs, miRNAs, and mRNAs expression profiles at 14-day rBMMSCs osteogenesis. The pivotal lncRNA-miRNA and miRNA-mRNA networks were predicted from sequencing data and bioinformatic analysis, and the results were exported by Cytoscape 3.9.0 software. Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were used for functional exploration. Real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was performed to validate lncRNAs, miRNAs and mRNAs. Results rBMMSCs were identified, and the osteogenic and adipogenic differentiation ability were detected. A total of 8634 lncRNAs were detected by RNA-seq, and 1524 differential expressed lncRNAs, of which 812 up-regulated and 712 down-regulated in osteo-inductive groups compared with control groups. 30 up-regulated and 61 down-regulated miRNAs, 91 miRNAs were differentially expressed in total. 2453 differentially expressed mRNAs including 1272 up-expressed and 1181 down-expressed were detected. 10 up-regulated lncRNAs were chosen to predict 21 down-regulated miRNAs and 650 up-regulated mRNAs. 49 lncRNA-miRNA and 1515 miRNA–mRNA interactive networks were constructed. GO analysis showed the most important enrichment in cell component and molecular function were “cytoplasm” and “protein binding”, respectively. Biological process related to osteogenic differentiation such as “cell proliferation”, “wound healing”, “cell migration”, “osteoblast differentiation”, “extracellular matrix organization” and “response to hypoxia” were enriched. KEGG analysis showed differentially expressed genes were mainly enriched in “PI3K-Akt signaling pathway”, “Signaling pathway regulating pluripotency of stem cells”, “cGMP-PKG signaling pathway”, “Axon guidance” and “Calcium signaling pathway”. qRT-PCR verified that lncRNA Tug1, lncRNA AABR07011996.1, rno-miR-93-5p, rno-miR-322-5p, Sgk1 and Fzd4 were consistent with the sequencing results, and 4 lncRNA-miRNA-mRNA networks based on validations were constructed, and enrichment pathways were closely related to “PI3K-Akt signaling pathway”, “Signaling pathway regulating pluripotency of stem cells” and “Wnt signaling pathway”. Conclusions lncRNAs, miRNAs and mRNAs expression profiles provide clues for future studies on their roles for BMMSCs osteogenic differentiation. Furthermore, lncRNA–miRNA–mRNA networks give more information on potential new mechanisms and targets for management on bone defect. Supplementary information The online version contains supplementary material available at 10.1186/s12864-022-08646-x.
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Affiliation(s)
- Jialin Liu
- Department of Prosthodontics and Implant Dentistry, The First Affiliated Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China.,Affiliated Stomatological Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China.,Stomatology Research Institute of Xinjiang Uygur Autonomous Region, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China
| | - Yuan Yao
- Department of Prosthodontics and Implant Dentistry, The First Affiliated Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China.,Affiliated Stomatological Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China.,Stomatology Research Institute of Xinjiang Uygur Autonomous Region, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China
| | - Jinyong Huang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China
| | - Hao Sun
- Department of Prosthodontics and Implant Dentistry, The First Affiliated Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China
| | - Yixuan Pu
- Department of Prosthodontics and Implant Dentistry, The First Affiliated Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China
| | - Mengting Tian
- Department of Prosthodontics and Implant Dentistry, The First Affiliated Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China
| | - Meijie Zheng
- Department of Prosthodontics and Implant Dentistry, The First Affiliated Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China
| | - Huiyu He
- Department of Prosthodontics and Implant Dentistry, The First Affiliated Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China.
| | - Zheng Li
- Department of Prosthodontics and Implant Dentistry, The First Affiliated Hospital of Xinjiang Medical University, Xin Jiang Uygur Autonomous Region, 830054, Urumqi, China.
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The Ability and Mechanism of nHAC/CGF in Promoting Osteogenesis and Repairing Mandibular Defects. NANOMATERIALS 2022; 12:nano12020212. [PMID: 35055231 PMCID: PMC8781663 DOI: 10.3390/nano12020212] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/25/2021] [Accepted: 12/29/2021] [Indexed: 02/06/2023]
Abstract
Nano-hydroxyapatite/collagen (nHAC) is a new type of bone tissue engineering scaffold material. To speed up the new bone formation of nHAC, this study used concentrated growth factor (CGF) and nHAC in combination to repair rabbit mandibular defects. nHAC/CGF and nHAC were implanted into rabbit mandibles, and X-ray, Micro-CT, HE and Masson staining, immunohistochemical staining and biomechanical testing were performed at 8, 16 and 24 weeks after surgery. The results showed that as the material degraded, the rate of new bone formation in the nHAC/CGF group was better than that in the nHAC group. The results of the HE and Masson staining showed that the bone continuity or maturity of the nHAC/CGF group was better than that of the nHAC group. Immunohistochemical staining showed that OCN expression gradually increased with time. The nHAC/CGF group showed significantly higher BMP2 than the nHAC group at 8 weeks and the difference gradually decreased with time. The biomechanical test showed that the compressive strength and elastic modulus of the nHAC/CGF group were higher than those of the nHAC group. The results suggest that nHAC/CGF materials can promote new bone formation, providing new ideas for the application of bone tissue engineering scaffold materials in oral clinics.
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