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He H, Yang YH, Yang X, Huang Y. The growth factor multimodality on treating human dental mesenchymal stem cells: a systematic review. BMC Oral Health 2024; 24:290. [PMID: 38429689 PMCID: PMC10905837 DOI: 10.1186/s12903-024-04013-2] [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: 11/09/2023] [Accepted: 02/12/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Ensuring the quantity, quality, and efficacy of human dental mesenchymal stem cells (MSCs) has become an urgent problem as their applications increase. Growth factors (GFs) have low toxicity, good biocompatibility, and regulate stem cell survival and differentiation. They bind to specific receptors on target cells, initiating signal transduction and triggering biological functions. So far, relatively few studies have been conducted to summarize the effect of different GFs on the application of dental MSCs. We have reviewed the literature from the past decade to examine the effectiveness and mechanism of applying one or multiple GFs to human dental MSCs. Our review is based on the premise that a single dental MSC cannot fulfill all applications and that different dental MSCs react differently to GFs. METHODS A search for published articles was carried out using the Web of Science core collection and PubMed. The study was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA 2020) guidelines. This review considered studies from 2014 to 2023 that examined the effects of GFs on human dental MSCs. The final selection of articles was made on the 15th of July 2023. RESULTS Three thousand eight hundred sixty-seven pieces of literature were gathered for this systematic review initially, only 56 of them were selected based on their focus on the effects of GFs during the application of human dental MSCs. Out of the 56, 32 literature pieces were focused on a single growth factor while 24 were focused on multiple growth factors. This study shows that GFs can regulate human dental MSCs through a multi-way processing manner. CONCLUSION Multimodal treatment of GFs can effectively regulate human dental MSCs, ensuring stem cell quality, quantity, and curative effects.
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Affiliation(s)
- Huiying He
- School of Stomatology, Jinan University, Guangzhou, 510632, China
| | - Yun-Hsuan Yang
- School of Stomatology, Jinan University, Guangzhou, 510632, China
| | - Xuesong Yang
- Clinical Research Center, Clifford Hospital, Guangzhou, 511495, China.
| | - Yue Huang
- School of Stomatology, Jinan University, Guangzhou, 510632, China.
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2
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Wu Z. Compression Promotes the Osteogenic Differentiation of Human Periodontal Ligament Stem Cells by Regulating METTL14-mediated IGF1. Curr Stem Cell Res Ther 2024; 19:1120-1128. [PMID: 38279741 DOI: 10.2174/011574888x244047231012103752] [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: 01/30/2023] [Revised: 07/17/2023] [Accepted: 07/26/2023] [Indexed: 01/28/2024]
Abstract
BACKGROUND AND OBJECTIVES Orthodontic treatment involves the application of mechanical force to induce periodontal tissue remodeling and ultimately promote tooth movement. It is essential to study the response mechanisms of human periodontal ligament stem cells (hPDLSCs) to improve orthodontic treatment. METHODS In this study, hPDLSCs treated with compressive force were used to simulate orthodontic treatment. Cell viability and cell death were assessed using the CCK-8 assay and TUNEL staining. Alkaline phosphatase (ALP) and alizarin red staining were performed to evaluate osteogenic differentiation. The binding relationship between IGF1 and METTL14 was assessed using RIP and dual-luciferase reporter assays. RESULTS The compressive force treatment promoted the viability and osteogenic differentiation of hPDLSCs. Additionally, m6A and METTL14 levels in hPDLSCs increased after compressive force treatment, whereas METTL14 knockdown decreased cell viability and inhibited the osteogenic differentiation of hPDLSCs treated with compressive force. Furthermore, the upregulation of METTL14 increased m6A levels, mRNA stability, and IGF1 expression. RIP and dual-luciferase reporter assays confirmed the interaction between METTL14 and IGF1. Furthermore, rescue experiments demonstrated that IGF1 overexpression reversed the effects of METTL14 knockdown in hPDLSCs treated with compressive force. CONCLUSIONS In conclusion, this study demonstrated that compressive force promotes cell viability and osteogenic differentiation of hPDLSCs by regulating IGF1 levels mediated by METTL14.
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Affiliation(s)
- Zengbo Wu
- North Sichuan Medical College, Xinglin Community, Sihai Street, Shunqing District, Nanchong, Sichuan, 637000, China
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3
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Roles of exosomes in regenerative periodontology: a narrative review. Mol Biol Rep 2022; 49:12219-12225. [PMID: 36266554 DOI: 10.1007/s11033-022-08010-y] [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: 08/21/2022] [Accepted: 10/04/2022] [Indexed: 10/24/2022]
Abstract
Periodontitis is the primary cause of irreversible destruction of the periodontium surrounding teeth. Proinflammatory cytokines are secreted by pathogens in the biofilm and destroy the periodontium. Exosomes released into all biological fluids from saliva have enabled many innovations in the early diagnosis and treatment of periodontal diseases. This narrative review describes the role of exosomes in various diseases, and their involvement in periodontal diseases and periodontal regeneration primarily. Since guided tissue regeneration offers unpredictable results that vary according to the case, new developments in periodontal treatment are needed. Exosomes are suitable drug carriers for periodontal regeneration due to their isolation from every biological fluid, biocompatibility, low toxicity and high concentration of drugs reaching the target tissue. Exosomes obtained from mesenchymal stem cells can be used for periodontal regeneration in periodontal flaps, scaffolds, or periodontal defect areas through biomaterials such as drugs and hydrogels. Exosomes are significant in the early diagnosis and development of treatment of many diseases such as cardiovascular, neurodegenerative, diabetes and prognostic markers in cancer. Future studies are needed to elucidate the effects and possible mechanisms of exosomes in periodontitis and periodontal diseases and other systemic diseases, as they have many promises in diagnosis, treatment, and prognosis.
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Banyatworakul P, Pirarat N, Sirisawadi S, Osathanon T, Kalpravidh C. Efficacy of bubaline blood derived fibrin glue in silk ligature-induced acute periodontitis in Wistar rats. Vet World 2021; 14:2602-2612. [PMID: 34903915 PMCID: PMC8654744 DOI: 10.14202/vetworld.2021.2602-2612] [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: 05/07/2021] [Accepted: 08/20/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND AND AIM Fibrin forms in the coagulation process, enhancing local hemostatic properties and promoting wound healing. The study aimed to evaluate the efficacy of bubaline-derived fibrin glue in silk ligature-induced periodontitis rats. MATERIALS AND METHODS Bubaline blood-derived fibrin glue was prepared using cryoprecipitation and cryocentrifugation. Periodontitis was induced in rats by placing 5-0 silk ligatures around the mandibular first molars. The animals were divided into two groups: (1) Non-treatment and (2) bubaline fibrin glue-treated groups. Plaque, gingival inflammation, and mobility index were scored on days 1, 7, and 14 after intervention. Histological examinations were performed. The mRNA expression of inflammatory cytokines and growth factors was evaluated using a real-time polymerase chain reaction. Ligature-induced periodontitis was confirmed by the increase in inflammatory cell infiltration as well as histological bone and attachment loss. RESULTS Compared to the non-treatment group, bubaline fibrin glue application reduced mononuclear cell infiltration into periodontal tissues corresponding to the reduction of collagen destruction. On days 7 and 14 after intervention, the inflammatory score and histological attachment loss were significantly lower in the bubaline fibrin glue-treated group than in the non-treatment group. A significant reduction in histological bone loss was observed in the treated group on day 7. Bubaline fibrin glue application led to a significant reduction of Tnfa and Il1b mRNA levels, while an increased expression of Pdgfa, Tgfb1, and Il10 was observed compared with the control. CONCLUSION Bubaline fibrin glue could be beneficial in periodontitis treatment aiming to reduce inflammation and delay the progression of periodontal disease.
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Affiliation(s)
- Poranee Banyatworakul
- Department of Veterinary Surgery, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330 Thailand
| | - Nopadon Pirarat
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330 Thailand
| | - Sujin Sirisawadi
- Biochemistry Unit, Department of Veterinary Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330 Thailand
| | - Thanaphum Osathanon
- Dental Stem Cell Biology Research Unit, Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330 Thailand
| | - Chanin Kalpravidh
- Department of Veterinary Surgery, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330 Thailand
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Schemann-Miguel F, Aloise AC, Gaiba S, Ferreira LM. Effect of Static Compressive Force on Aldehyde Dehydrogenase Activity in Periodontal Ligament Fibroblasts. Open Dent J 2021. [DOI: 10.2174/1874210602115010417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background:
The application of static compressive forces to periodontal ligament fibroblasts (PDLFs) in vivo or in vitro has been linked to the expression of biochemical agents and local tissue modifications that could be involved in maintaining homeostasis during orthodontic movement. An approach used for identifying mesenchymal cells, or a subpopulation of progenitor cells in both tumoral and normal tissues, involves determining the activity of aldehyde dehydrogenase (ALDH). However, the role of subpopulations of PDLF-derived undifferentiated cells in maintaining homeostasis during tooth movement remains unclear.
Objective:
This study aimed at analyzing the effect of applying a static compressive force to PDLFs on the activity of ALDH in these cells.
Methods:
PDLFs were distributed into two groups: control group (CG), where fibroblasts were not submitted to compression, and experimental group (EG), where fibroblasts were submitted to a static compressive force of 4 g/mm2 for 6 hours. The compressive force was applied directly to the cells using a custom-built device. ALDH activity in the PDLFs was evaluated by a flow cytometry assay.
Results:
ALDH activity was observed in both groups, but was significantly lower in EG than in CG after the application of a static compressive force in the former.
Conclusion:
Application of a static compressive force to PDLFs decreased ALDH activity.
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Iwata T, Mizuno N, Nagahara T, Kaneda-Ikeda E, Kajiya M, Sasaki S, Takeda K, Kiyota M, Yagi R, Fujita T, Kurihara H. Cytokines regulate stemness of mesenchymal stem cells via miR-628-5p during periodontal regeneration. J Periodontol 2021; 93:269-286. [PMID: 34152611 DOI: 10.1002/jper.21-0064] [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: 02/09/2021] [Revised: 06/11/2021] [Accepted: 06/12/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND Cytokines play key roles in stimulating periodontal regeneration; however, their exact mechanisms of action remain unclear. Mesenchymal stem cells (MSCs) are multipotent cells that have self-renewal abilities and can differentiate into periodontal tissues such as bone, cementum, and periodontal ligaments following transplantation, like periodontal progenitor cells. Here, we used MSCs to identify the regulatory genes induced by periodontal regenerative cytokines. METHODS Human MSCs (hMSCs) were cultured under conditions of periodontal regenerative cytokine stimulation or silencing of undifferentiated hMSC transcription factors. To characterize the changes associated with periodontal regenerative cytokine-regulated microRNAs (miRNAs), miRNA, and mRNA expression was evaluated using miRNA arrays and quantitative real-time polymerase chain reaction, respectively. One of the identified miRNAs, miR-628-5p, was then overexpressed or suppressed in hMSCs during osteogenesis; the effect of these changes on osteogenesis was investigated. RESULTS Cytokine-stimulated MSCs showed characteristic miRNA profiles and mRNA levels of undifferentiated hMSC transcription factors ETV1, SOX11, and GATA6. Next, we silenced these transcription factors in MSCs and examined the miRNA profiles. The levels of miR-628-5p were decreased upon all cytokine treatments and were increased upon silencing of ETV1, SOX11, and GATA6. Overexpression of miR-628-5p suppressed osteogenesis; however, its inhibition enhanced OPN, ALP, OC, BMP2, and RUNX2 mRNA levels, and bone matrix mineralization, but not OSX mRNA or ALP activity. CONCLUSIONS miR-628-5p negatively regulates MSC stemness during periodontal regeneration. Periodontal regenerative cytokines act as miR-628-5p suppressors to support periodontal regeneration. Thus, selection of effective cytokines for different MSCs, based on miRNA profiling, is important for advancing regenerative therapies.
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Affiliation(s)
- Tomoyuki Iwata
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Noriyoshi Mizuno
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Takayoshi Nagahara
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Eri Kaneda-Ikeda
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Mikihito Kajiya
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Shinya Sasaki
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Katsuhiro Takeda
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan.,Department of Biological Endodontics, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Mari Kiyota
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Ryoichi Yagi
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Tsuyoshi Fujita
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - Hidemi Kurihara
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
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Bashir NZ. The role of insulin-like growth factors in modulating the activity of dental mesenchymal stem cells. Arch Oral Biol 2020; 122:104993. [PMID: 33259987 DOI: 10.1016/j.archoralbio.2020.104993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/14/2020] [Accepted: 11/19/2020] [Indexed: 12/27/2022]
Abstract
Regenerative treatment protocols are an exciting prospect in the management of oral pathology, as they allow for tissues to be restored to their original form and function, as compared to the reparative healing mechanisms which currently govern the outcomes of the majority of dental treatment. Stem cell therapy presents with a great deal of untapped potential in this pursuit of tissue regeneration, and, in particular, mesenchymal stem cells (MSCs) derived from dental tissues are of specific relevance with regards to their applications in engineering craniofacial tissues. A number of mediatory factors are involved in modulating the actions of dental MSCs, and, of these, insulin like growth factors (IGFs) are known to have potent effects in governing the behavior of these cells. The IGF family comprises a number of primary ligands, receptors, and binding proteins which are known to modulate the key properties of dental MSCs, such as their proliferation rates, differentiation potential, and mineralisation. The aims of this review are three-fold: (i) to present an overview of dental MSCs and the role of growth factors in modulating their characteristics, (ii) to discuss in greater detail the specific role of IGFs and the benefits they may convey for tissue engineering, and (iii) to provide a summary of potential for in vivo clinical translation of the current in vitro body of evidence.
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8
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RhPDGF – Basic Characteristics and Potential Application in the Oral Surgery – An Overview. ACTA MEDICA BULGARICA 2020. [DOI: 10.2478/amb-2020-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract
Growth factors (GFs) are bioactive molecules participating in organ development, tissue regeneration and repair. They are protein molecules with a relatively low molecular weight and are released by activated platelets. Platelet-derived growth factor (PDGF) is one of the GFs of highest amount in human platelets. It is known to stimulate cell proliferation and extracellular matrix synthesis, as well as angiogenesis in healthy tissues and neoplasms. However, most of the studies in the literature demonstrate the influence of PDGF on tissue regeneration without revealing its intimate mechanisms of action on different cell types. In the current review we emphasis on the effects of PDGF in order to stimulate various biological processes in wide number of pre-clinical and clinical studies.
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Ozdemir Y, Keceli HG, Helvaci N, Erbas T, Nohutcu RM. The tendency of reduced periodontal destruction in acromegalic patients showing similar inflammatory status with periodontitis patients. Endocrine 2019; 66:622-633. [PMID: 31478163 DOI: 10.1007/s12020-019-02060-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/14/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE Evaluate periodontal status of acromegalics through clinical and biochemical variables. METHODS Demographics, hormone and metabolic variables, periodontal variables, gingival crevicular fluid (GCF) volume, and content data were collected from 30 patients with acromegaly, 30 patients with periodontitis, and 20 healthy subjects and comparatively analyzed. RESULTS GH differences between acromegaly (2.56 ± 4.86) and periodontitis (0.53 ± 0.95) (p < 0.001) were statistically significant. IGF-1 was lowest at periodontitis (113.31 ± 45.01) and lower (152.11 ± 45.56) at healthy group compared with acromegalics (220.38 ± 167.62) (p < 0.05). GH and IGF-1 had positive correlation (p < 0.05). IGF-1 and CAL had negative (p < 0.01) correlation except healthy group that showed the same correlation at the opposite direction (p < 0.05). Besides similar plaque and gingival indices with periodontitis, acromegalics showed relatively less CAL and GCF volume but except CAL, all their periodontal variables were higher than healthy subjects. GCF GH and prolactin showed higher values in acromegalics while healthy subjects showed relatively high interleukin-1, -10 and carboxyterminal telopeptide of type I collagen compared with others. CONCLUSION Acromegalics have a tendency of slowed periodontal destruction with an influence of GH and IGF-1 to the inflammation- and collage metabolism-related mechanisms rather than bone-associated ones. However, this information must be confirmed with further studies exploring the mechanisms possibly bonded to others.
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Affiliation(s)
- Yesim Ozdemir
- Hacettepe University Faculty of Dentistry, Periodontology Department, Ankara, Turkey
| | - H Gencay Keceli
- Hacettepe University Faculty of Dentistry, Periodontology Department, Ankara, Turkey.
| | - Nafiye Helvaci
- Hacettepe University Medical School, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Tomris Erbas
- Hacettepe University Medical School, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Rahime M Nohutcu
- Hacettepe University Faculty of Dentistry, Periodontology Department, Ankara, Turkey
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Identification of Aberrantly Expressed lncRNAs Involved in Orthodontic Force Using a Subpathway Strategy. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2019; 2019:9250129. [PMID: 31565070 PMCID: PMC6745140 DOI: 10.1155/2019/9250129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 07/07/2019] [Indexed: 01/25/2023]
Abstract
Background The aim of the study was to identify key long noncoding RNAs (lncRNA) and related subpathways in the periodontal ligament tissue following orthodontic force. Methods We adopt a novelty subpathway strategy to identify lncRNAs competitively regulated functions and the key competitive lncRNAs in periodontal ligament disorders after undergoing orthodontic force. To begin with, patients with orthodontics in our hospital were enrolled in our research. The relationship of lncRNA-mRNA was established through shared predicted miRNA by using the hypergeometric test, Jaccard coefficient standardization, and the Pearson coefficient to determine the valid interaction relationship. After embedding screened lncRNA interactions to pathways, the significant subpathways were recognized by lenient distance and Wallenius approximation methods to calculate the false discovery rate value of each subpathway. Results The lncRNA-mRNA intersections including 263 lncRNAs, 1,599 mRNAs, and 3,762 interacting pairs were obtained. The enriched mRNAs were further enriched into various candidate pathways such as the PI3K-Akt signaling pathway. Several subpathways were screened, including the PI3K-Akt signaling pathway, 04510_1 focal adhesion, and p53 signaling pathway, respectively. The network of pathway-lncRNA-mRNA was constructed. Several key lncRNAs including DNAJC3-AS1, WDFY3-AS2, LINC00482, and DLEU2 were screened. Conclusions DNAJC3-AS1, WDFY3-AS2, LINC00482, and DLEU2 as aberrantly expressed lncRNAs involved in orthodontic force might play crucial roles in periodontal ligament disease pathogenesis.
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Root surface demineralization by citric acid/tetracycline gel and aPDT associated to subepithelial connective tissue graft improves root coverage outcomes. A 12-month preliminary randomized clinical trial. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 197:111528. [DOI: 10.1016/j.jphotobiol.2019.111528] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 03/14/2019] [Accepted: 06/03/2019] [Indexed: 01/19/2023]
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Mesenchymal stem cell exosomes enhance periodontal ligament cell functions and promote periodontal regeneration. Acta Biomater 2019; 89:252-264. [PMID: 30878447 DOI: 10.1016/j.actbio.2019.03.021] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/08/2019] [Accepted: 03/11/2019] [Indexed: 12/18/2022]
Abstract
Mesenchymal stem cells (MSCs) are potential therapeutics for the treatment of periodontal defects. It is increasingly accepted that MSCs mediate tissue repair through secretion of trophic factors, particularly exosomes. Here, we investigated the therapeutic effects of human MSC exosome-loaded collagen sponge for regeneration of surgically created periodontal intrabony defects in an immunocompetent rat model. We observed that relative to control rats, exosome-treated rats repaired the defects more efficiently with regeneration of periodontal tissues including newly-formed bone and periodontal ligament (PDL). We also observed that concomitant with this, there was increased cellular infiltration and proliferation. We therefore postulated that MSC exosomes enhanced regeneration through increased cellular mobilisation and proliferation. Using PDL cell cultures, we demonstrated that MSC exosomes could increase PDL cell migration and proliferation through CD73-mediated adenosine receptor activation of pro-survival AKT and ERK signalling. Inhibition of AKT or ERK phosphorylation suppressed PDL cell migration and proliferation. Our findings demonstrated for the first time that MSC exosomes enhance periodontal regeneration possibly by increasing PDL migration and proliferation. This study suggests that MSC exosome is a viable ready-to-use and cell-free MSC therapeutic for the treatment of periodontal defects. STATEMENT OF SIGNIFICANCE: Mesenchymal stem cell (MSC) therapies have demonstrated regenerative potential for the treatment of periodontal defects. However, translation of cellular therapies is hampered by challenges in maintaining optimal cell vitality and viability from manufacturing and storage to final delivery to patients. Although the use of MSCs for tissue repair was first predicated on their differentiation potential, the therapeutic efficacy of MSCs has increasingly been attributed to its paracrine secretion, particularly exosomes or small extracellular vesicles. In this study, MSC exosome-loaded collagen sponge enhanced periodontal regeneration in an immunocompetent rat periodontal defect model without any obvious adverse effects. These findings provide the basis for future development of MSC exosomes as a cell-free strategy for periodontal regeneration.
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Afacan B, Öztürk VÖ, Geçgelen Cesur M, Köse T, Bostanci N. Effect of orthodontic force magnitude on cytokine networks in gingival crevicular fluid: a longitudinal randomized split-mouth study. Eur J Orthod 2018; 41:214-222. [DOI: 10.1093/ejo/cjy068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Beral Afacan
- Department of Periodontology, School of Dentistry, Adnan Menderes University, Aydın
| | - Veli Özgen Öztürk
- Department of Periodontology, School of Dentistry, Adnan Menderes University, Aydın
| | - Mine Geçgelen Cesur
- Department of Orthodontics, School of Dentistry, Adnan Menderes University, Aydın
| | - Timur Köse
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Ege University, İzmir, Turkey
| | - Nagihan Bostanci
- Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
- Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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Sadeghi R, Mahdavi P, Lee WS, Quan B, Sone E, Ganss B, McCulloch CA. A novel, cell-permeable, collagen-based membrane promotes fibroblast migration. J Periodontal Res 2018; 53:727-735. [DOI: 10.1111/jre.12557] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/05/2018] [Indexed: 01/06/2023]
Affiliation(s)
- R. Sadeghi
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
- Department of Periodontics; Faculty of Dentistry; Shahed University; Tehran Iran
| | - P. Mahdavi
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
| | - W. S. Lee
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
| | - B. Quan
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto ON Canada
| | - E. Sone
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto ON Canada
| | - B. Ganss
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
| | - C. A. McCulloch
- Matrix Dynamics Group; Faculty of Dentistry; University of Toronto; Toronto ON Canada
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Mihaylova Z, Tsikandelova R, Sanimirov P, Gateva N, Mitev V, Ishkitiev N. Role of PDGF-BB in proliferation, differentiation and maintaining stem cell properties of PDL cells in vitro. Arch Oral Biol 2018; 85:1-9. [DOI: 10.1016/j.archoralbio.2017.09.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 08/10/2017] [Accepted: 09/24/2017] [Indexed: 12/19/2022]
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16
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Comparison of the effect of root surface modification with citric acid, EDTA, and aPDT on adhesion and proliferation of human gingival fibroblasts and osteoblasts: an in vitro study. Lasers Med Sci 2017; 33:533-538. [DOI: 10.1007/s10103-017-2395-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 11/20/2017] [Indexed: 12/12/2022]
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17
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Karam PSBH, Ferreira R, Oliveira RC, Greghi SLA, de Rezende MLR, Sant'Ana ACP, Zangrando MSR, Damante CA. Stimulation of human gingival fibroblasts viability and growth by roots treated with high intensity lasers, photodynamic therapy and citric acid. Arch Oral Biol 2017; 81:1-6. [PMID: 28456059 DOI: 10.1016/j.archoralbio.2017.04.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 03/20/2017] [Accepted: 04/17/2017] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The aim of this study was to compare the effect of root biomodification by lasers, citric acid and antimicrobial photodynamic therapy (aPDT) on viability and proliferation of human gingival fibroblasts (FGH). DESIGN Groups were divided in control (CC - only cells), and root fragments treated by: scaling and root planing (positice control - SC), Er:YAG (ER-60mJ,10pps,10Hz,10s,2940nm), Nd:YAG (ND-0.5W,15Hz,10s,1640nm), antimicrobial photodynamic therapy (PDT-InGaAIP,30mW,45J/cm2,30s,660nm,toluidine blue O), citric acid plus tetracycline (CA). Fibroblasts (6th passage, 2×103) were cultivated in a 24-h conditioned medium by the treated root fragments. Cell viability was measured by MTT test at 24, 48, 72 and 96h. In a second experiment, FGH cells (104) were cultivated on root fragments which received the same treatments. After 24, 48, 72h the number of cells was counted in SEM pictures. In addition, chemical elements were analyzed by energy dispersive spectroscopy (EDS). Data was analyzed by two-way ANOVA (first experiment), repeated measures ANOVA (second experiment) and ANOVA (EDS experiment) tests complemented by Tukey's test (p<0.05). RESULTS ND, PDT and CA promoted higher cell viability (p<0.05). ND and ER groups presented higher number of cells on root surfaces (p<0.05). ER group presented higher calcium and CA group a higher carbon percentages (p<0.05). CONCLUSIONS All treatments but scaling and root planing stimulated fibroblast viability while Er:YAG and Nd:YAG treated root surfaces presented higher number of cells.
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Affiliation(s)
| | - Rafael Ferreira
- Discipline of Periodontics, Bauru School of Dentistry, University of São Paulo, Brazil.
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Reckenbeil J, Kraus D, Stark H, Rath-Deschner B, Jäger A, Wenghoefer M, Winter J, Götz W. Insulin-like growth factor 1 (IGF1) affects proliferation and differentiation and wound healing processes in an inflammatory environment with p38 controlling early osteoblast differentiation in periodontal ligament cells. Arch Oral Biol 2017; 73:142-150. [DOI: 10.1016/j.archoralbio.2016.10.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 08/31/2016] [Accepted: 10/11/2016] [Indexed: 12/21/2022]
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Devi R, Dixit J. Clinical Evaluation of Insulin like Growth Factor-I and Vascular Endothelial Growth Factor with Alloplastic Bone Graft Material in the Management of Human Two Wall Intra-Osseous Defects. J Clin Diagn Res 2016; 10:ZC41-ZC46. [PMID: 27790578 DOI: 10.7860/jcdr/2016/21333.8476] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 08/10/2016] [Indexed: 02/01/2023]
Abstract
INTRODUCTION In recent years, emphasis on the use of growth factors for periodontal healing is gaining great momentum. Several growth factors showed promising results in periodontal regeneration. AIM This study was designed to compare the clinical outcomes of 0.8μg recombinant human Vascular Endothelial Growth Factor (rh-VEGF) and 10μg recombinant human Insulin Like Growth Factor-I (rh-IGF-I) with β-Tricalcium Phosphate (β-TCP) and Polylactide-Polyglycolide Acid (PLGA) membrane in two wall intra-osseous defects. MATERIALS AND METHODS A total of 29 intra-osseous defects in 27 subjects were randomly divided into 3 test and 1 control group. Test group I (n=8) received rh-VEGF+ rh-IGF-I, Test group II (n=7) rh-VEGF, Test group III (n=7) rh-IGF-I and control group (n=7) with no growth factor, β-TCP and PLGA membrane was used in all the groups. Baseline soft tissue parameters including Probing Pocket Depth (PPD), Clinical Attachment Level (CAL), and Gingival Recession (GR) at selected sites were recorded at baseline and at 6 months. Intrasurgically, intra-osseous component was calculated as a) Cemento-Enamel Junction to Bone Crest (CEJ to BC), b) Bone Crest to Base of the Defect (BC to BD) at baseline and at re-entry. The mean changes at baseline and after 6 months within each group were compared using Wilcoxon Signed Rank Test. The mean changes for each parameter between groups were compared using Mann-Whitney U test. RESULTS After 6 months, maximum mean PPD reduction occurred in test group I followed by test group II, III and control group. Similar trend was observed in CAL gain. Non-significant GR was present in test group I and control group whereas in test group II and III GR was absent. The use of rh-VEGF+ rhIGF-I exhibited 95.8% osseous fill as compared to 54.8% in test group II, 52.7% in test group III and 41.1 % in the control group. CONCLUSION Within the limitations of this study, it can be concluded that, rh-IGF-I+rh-VEGF treated sites resulted in greater improvement in PPD reduction, CAL gain as well as in osseous fill after 6 months when compared with rh-VEGF, rh-IGF-I and control sites.
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Affiliation(s)
- Renu Devi
- Demonstrator, Department of Periodontics and Oral Implantology, Postgraduate Institute of Dental Sciences , Rohtak, Haryana, India
| | - Jaya Dixit
- Professor and Head of Department, Department of Periodontology, Faculty of Dental Sciences, King George's Medical University , Lucknow, Uttar Pradesh, India
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de Rezende MLR, Coesta PTG, de Oliveira RC, Salmeron S, Sant'Ana ACP, Damante CA, Greghi SLA, Consolaro A. Bone demineralization with citric acid enhances adhesion and spreading of preosteoblasts. J Periodontol 2016; 86:146-54. [PMID: 25272980 DOI: 10.1902/jop.2014.130657] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Previous studies have demonstrated that bone demineralization can improve consolidation in bone grafts. The biologic mechanisms underlying this phenomenon remain unclear. METHODS Twelve adult male guinea pigs were used in this experiment. Forty-five bone samples removed from the calvaria of nine animals were divided in groups (n = 9) according to the time of demineralization with citric acid (50%, pH 1): 15, 30, 90, and 180 seconds and non-demineralized samples (control). Preosteoblasts (MC3T3-E1) were cultured on the bone samples for 24, 48, and 72 hours (n = 3). Fifteen samples removed from the remaining three animals were analyzed by scanning electron microscopy/energy dispersive spectrometry (SEM/EDS) after demineralization (n = 3). RESULTS The number of preosteoblasts increased significantly with time in all groups. The bone surface area covered by these cells increased with time, except in the control group. Intragroup differences occurred between 24 and 72 hours (P < 0.05). Samples demineralized for 30 seconds showed greater area covered by preosteoblast cells than for the other times of demineralization in all periods of cell culture (P < 0.05) without a statistically significant difference compared with 15 seconds. SEM/EDS showed diminished content of calcium (Ca) after 15 seconds of demineralization, but the Ca content increased after 180 seconds of demineralization (P < 0.05). The phosphorus (P) amount increased significantly only after 30 seconds of demineralization (P < 0.5). The sulfur (S) content was increased in demineralized samples in relation to non-demineralized ones, reaching the highest level after 90 seconds, when the difference became significant in relation to all the other times of demineralization (P < 0.05). Magnesium (Mg) content did not differ significantly between demineralized and non-demineralized samples. CONCLUSIONS Bone surfaces demineralized for 30 seconds increased the spreading of preosteoblasts as well as the surface area covered by these cells. Bone demineralization deserves to be studied in periodontal and maxillofacial regenerative procedures.
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Affiliation(s)
- Maria Lúcia R de Rezende
- Department of Prosthodontics, Division of Periodontics, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
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Damante CA, Ducati P, Ferreira R, Salmeron S, Zangrando MSR, de Rezende MLR, Sant’Ana ACP, Greghi SLA, Magalhães AC. In vitro evaluation of adhesion/proliferation of human gingival fibroblasts on demineralized root surfaces by toluidine blue O in antimicrobial photodynamic therapy. Photodiagnosis Photodyn Ther 2016; 13:303-307. [DOI: 10.1016/j.pdpdt.2015.08.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 08/03/2015] [Accepted: 08/24/2015] [Indexed: 01/19/2023]
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Song Y, Yu C, Wang C, Ma X, Xu K, Zhong JL, Lv Y, Sung KP, Yang L. Mechano growth factor-C24E, a potential promoting biochemical factor for ligament tissue engineering. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2015.09.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Intermittent Compressive Stress Enhanced Insulin-Like Growth Factor-1 Expression in Human Periodontal Ligament Cells. Int J Cell Biol 2015; 2015:369874. [PMID: 26106417 PMCID: PMC4464684 DOI: 10.1155/2015/369874] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 05/19/2015] [Accepted: 05/20/2015] [Indexed: 02/06/2023] Open
Abstract
Mechanical force was shown to promote IGF-1 expression in periodontal ligament both in vitro and in vivo. Though the mechanism of this effect has not yet been proved, here we investigated the molecular mechanism of intermittent mechanical stress on IGF-1 expression. In addition, the role of hypoxia on the intermittent compressive stress on IGF-1 expression was also examined. In this study, human periodontal ligament cells (HPDLs) were stimulated with intermittent mechanical stress for 24 hours. IGF-1 expression was examined by real-time polymerase chain reaction. Chemical inhibitors were used to determine molecular mechanisms of these effects. For hypoxic mimic condition, the CoCl2 supplementation was employed. The results showed that intermittent mechanical stress dramatically increased IGF-1 expression at 24 h. The pretreatment with TGF-β receptor I or TGF-β1 antibody could inhibit the intermittent mechanical stress-induced IGF-1 expression. Moreover, the upregulation of TGF-β1 proteins was detected in intermittent mechanical stress treated group. Correspondingly, the IGF-1 expression was upregulated upon being treated with recombinant human TGF-β1. Further, the hypoxic mimic condition attenuated the intermittent mechanical stress and rhTGF-β1-induced IGF-1 expression. In summary, this study suggests intermittent mechanical stress-induced IGF-1 expression in HPDLs through TGF-β1 and this phenomenon could be inhibited in hypoxic mimic condition.
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Pilipchuk SP, Plonka AB, Monje A, Taut AD, Lanis A, Kang B, Giannobile WV. Tissue engineering for bone regeneration and osseointegration in the oral cavity. Dent Mater 2015; 31:317-38. [PMID: 25701146 DOI: 10.1016/j.dental.2015.01.006] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Revised: 12/19/2014] [Accepted: 01/11/2015] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The focus of this review is to summarize recent advances on regenerative technologies (scaffolding matrices, cell/gene therapy and biologic drug delivery) to promote reconstruction of tooth and dental implant-associated bone defects. METHODS An overview of scaffolds developed for application in bone regeneration is presented with an emphasis on identifying the primary criteria required for optimized scaffold design for the purpose of regenerating physiologically functional osseous tissues. Growth factors and other biologics with clinical potential for osteogenesis are examined, with a comprehensive assessment of pre-clinical and clinical studies. Potential novel improvements to current matrix-based delivery platforms for increased control of growth factor spatiotemporal release kinetics are highlighting including recent advancements in stem cell and gene therapy. RESULTS An analysis of existing scaffold materials, their strategic design for tissue regeneration, and use of growth factors for improved bone formation in oral regenerative therapies results in the identification of current limitations and required improvements to continue moving the field of bone tissue engineering forward into the clinical arena. SIGNIFICANCE Development of optimized scaffolding matrices for the predictable regeneration of structurally and physiologically functional osseous tissues is still an elusive goal. The introduction of growth factor biologics and cells has the potential to improve the biomimetic properties and regenerative potential of scaffold-based delivery platforms for next-generation patient-specific treatments with greater clinical outcome predictability.
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Affiliation(s)
- Sophia P Pilipchuk
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, 1101 Beal Avenue, Ann Arbor, MI 48109, USA.
| | - Alexandra B Plonka
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, 1011 N. University Avenue, Ann Arbor, MI 48109, USA.
| | - Alberto Monje
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, 1011 N. University Avenue, Ann Arbor, MI 48109, USA.
| | - Andrei D Taut
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, 1011 N. University Avenue, Ann Arbor, MI 48109, USA.
| | - Alejandro Lanis
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, 1011 N. University Avenue, Ann Arbor, MI 48109, USA.
| | - Benjamin Kang
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, 1011 N. University Avenue, Ann Arbor, MI 48109, USA.
| | - William V Giannobile
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, 1011 N. University Avenue, Ann Arbor, MI 48109, USA; Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, 1101 Beal Avenue, Ann Arbor, MI 48109, USA.
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Smith PC, Martínez C, Cáceres M, Martínez J. Research on growth factors in periodontology. Periodontol 2000 2014; 67:234-50. [DOI: 10.1111/prd.12068] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2013] [Indexed: 12/16/2022]
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Today prospects for tissue engineering therapeutic approach in dentistry. ScientificWorldJournal 2014; 2014:151252. [PMID: 25379516 PMCID: PMC4212630 DOI: 10.1155/2014/151252] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 09/09/2014] [Indexed: 02/08/2023] Open
Abstract
In dental practice there is an increasing need for predictable therapeutic protocols able to regenerate tissues that, due to inflammatory or traumatic events, may suffer from loss of their function. One of the topics arising major interest in the research applied to regenerative medicine is represented by tissue engineering and, in particular, by stem cells. The study of stem cells in dentistry over the years has shown an exponential increase in literature. Adult mesenchymal stem cells have recently been isolated and characterized from tooth-related tissues and they might represent, in the near future, a new gold standard in the regeneration of all oral tissues. The aim of our review is to provide an overview on the topic reporting the current knowledge for each class of dental stem cells and to identify their potential clinical applications as therapeutic tool in various branches of dentistry.
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Pei Z, Wang B, Zhang F, Niu Z, Shi S, Cannon RD, Mei L. Response of Human Periodontal Ligament Cells to Baicalin. J Periodontol 2014; 85:1283-90. [DOI: 10.1902/jop.2014.130635] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Vanacker J, Viswanath A, De Berdt P, Everard A, Cani PD, Bouzin C, Feron O, Diogenes A, Leprince JG, des Rieux A. Hypoxia modulates the differentiation potential of stem cells of the apical papilla. J Endod 2014; 40:1410-8. [PMID: 25146023 DOI: 10.1016/j.joen.2014.04.008] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 04/23/2014] [Accepted: 04/28/2014] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Stem cells from the apical papilla (SCAP) are a population of mesenchymal stem cells likely involved in regenerative endodontic procedures and have potential use as therapeutic agents in other tissues. In these situations, SCAP are exposed to hypoxic conditions either within a root canal devoid of an adequate blood supply or in a scaffold material immediately after implantation. However, the effect of hypoxia on SCAP proliferation and differentiation is largely unknown. Therefore, the objective of this study was to evaluate the effect of hypoxia on the fate of SCAP. METHODS SCAP were cultured under normoxia (21% O2) or hypoxia (1% O2) in basal or differentiation media. Cellular proliferation, gene expression, differentiation, and protein secretion were analyzed by live imaging, quantitative reverse-transcriptase polymerase chain reaction, cellular staining, and enzyme-linked immunosorbent assay, respectively. RESULTS Hypoxia had no effect on SCAP proliferation, but it evoked the up-regulation of genes specific for osteogenic differentiation (runt-related transcription factor 2, alkaline phosphatase, and transforming growth factor-β1), neuronal differentiation ( 2'-3'-cyclic nucleotide 3' phosphodiesterase, SNAIL, neuronspecific enolase, glial cell-derived neurotrophic factor and neurotrophin 3), and angiogenesis (vascular endothelial growth factor A and B). Hypoxia also increased the sustained production of VEGFa by SCAP. Moreover, hypoxia augmented the neuronal differentiation of SCAP in the presence of differentiation exogenous factors as detected by the up-regulation of NSE, VEGFB, and GDNF and the expression of neuronal markers (PanF and NeuN). CONCLUSIONS This study shows that hypoxia induces spontaneous differentiation of SCAP into osteogenic and neurogenic lineages while maintaining the release of the proangiogenic factor VEGFa. This highlights the potential of SCAP to promote pulp-dentin regeneration. Moreover, SCAP may represent potential therapeutic agents for neurodegenerative conditions because of their robust differentiation potential.
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Affiliation(s)
- Julie Vanacker
- Pharmaceutics and Drug Delivery Unit, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium.
| | - Aiswarya Viswanath
- Pharmaceutics and Drug Delivery Unit, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Pauline De Berdt
- Pharmaceutics and Drug Delivery Unit, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Amandine Everard
- Metabolism and Nutrition Research Group, WELBIO (Walloon Excellence in Life Sciences and BIOtechnology), Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Patrice D Cani
- Metabolism and Nutrition Research Group, WELBIO (Walloon Excellence in Life Sciences and BIOtechnology), Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Caroline Bouzin
- Pole of Pharmacology, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
| | - Olivier Feron
- Pole of Pharmacology, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
| | - Anibal Diogenes
- University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Julian G Leprince
- Pharmaceutics and Drug Delivery Unit, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Anne des Rieux
- Pharmaceutics and Drug Delivery Unit, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
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Márton IJ, Kiss C. Overlapping Protective and Destructive Regulatory Pathways in Apical Periodontitis. J Endod 2014; 40:155-63. [DOI: 10.1016/j.joen.2013.10.036] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 09/26/2013] [Accepted: 10/24/2013] [Indexed: 02/06/2023]
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BOONANANTANASARN K, JANEBODIN K, SUPPAKPATANA P, ARAYAPISIT T, RODSUTTHI JA, CHUNHABUNDIT P, BOONANUNTANASARN S, SRIPAIROJTHIKOON W. Morinda citrifolia leaves enhance osteogenic differentiation and mineralization of human periodontal ligament cells. Dent Mater J 2014; 33:157-65. [DOI: 10.4012/dmj.2012-053-r] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Chowdhary KY, George JP, Gowda P, Rao JA. Human periodontal ligament fibroblast response to rhPDGF-BB application on periodontally diseased root surfaces-in vitro. Growth Factors 2013; 31:130-8. [PMID: 23848173 DOI: 10.3109/08977194.2013.811238] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The aim of the present study was to evaluate the influence of recombinant platelet derived growth factor-BB (rhPDGF-BB) on the cellular proliferation, morphology and adherence of human periodontal ligament fibroblasts (PLFs) to the root surfaces of periodontally diseased and healthy human teeth roots at two different time periods. Primary cell cultures of PLFs were obtained from clinically healthy premolar or mandibular third molar teeth. 11 scaffolds were prepared from healthy teeth for group-1 (Healthy Substrates), 33 scaffolds were prepared from periodontally diseased teeth, which were further divided in Group-2 - Periodontally diseased substrates, Group-3 - Scaled and Root planed (SRP) substrates, Group-4 - SRP + rhPDGF-BB (50 ng/ml). Groups were further subdivided into two groups (n = 5 scaffolds per subgroup) and PLFs were incubated on the scaffolds for three and seven days, topographical assessment was done on the remaining substrate. Cell morphology and counting was assessed under a scanning electron microscope at 350× on day three and seven and statistically compared with the Mann-Whitney U test and the Kruskal-Wallis test. On day three, Group 1 showed least number of cells attached, whereas maximum number of cells were attached on Group 3 (SRP only) substrates. For day 7, Group 1 and Group 4 showed increase in the number of cells from day 3 to 7, while number of cells attached/substrate reduced drastically for Group 2 and 3 substrates. Group 3 and 4 showed better adhesion and proliferation of PLFs as compared to Group 1 and 2. Group-1 and Group-4 showed predominantly spindle cells with flat appearance, Group-3 showed stellate cells and Group-2 showed predominantly distorted spindle shaped cells. The results of this in-vitro study indicates that rhPDGF-BB plays a significant role as an adjunct to periodontal therapy in influencing maturity, attachment and proliferation of PLFs.
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Doorn J, Roberts SJ, Hilderink J, Groen N, van Apeldoorn A, van Blitterswijk C, Schrooten J, de Boer J. Insulin-like growth factor-I enhances proliferation and differentiation of human mesenchymal stromal cells in vitro. Tissue Eng Part A 2013; 19:1817-28. [PMID: 23530894 DOI: 10.1089/ten.tea.2012.0522] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Human mesenchymal stromal cells (hMSCs) offer great potential for bone tissue engineering applications, but their in vivo performance remains limited. Preconditioning of these cells with small molecules to improve their differentiation before implantation, or incorporation of growth factors are possible solutions. Insulin-like growth factor-1 (IGF-1) is one of the most abundant growth factors in bone, involved in growth, development, and metabolism, but its effects on hMSCs are still subject of debate. Here we examined the effects of IGF-1 on proliferation and differentiation of hMSCs in vitro and we found that serum abolished the effects of IGF-1. Only in the absence of serum, IGF-1 increased proliferation, alkaline phosphatase expression, and osteogenic gene expression of hMSCs. Furthermore, we examined synergistic effects of bone morphogenetic protein-2 (BMP-2) and IGF-1 and, although IGF-1 enhanced BMP-2-induced mineralization, IGF-1 only slightly affected in vivo bone formation.
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Affiliation(s)
- Joyce Doorn
- MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
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Maeda H, Wada N, Tomokiyo A, Monnouchi S, Akamine A. Prospective potency of TGF-β1 on maintenance and regeneration of periodontal tissue. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2013; 304:283-367. [PMID: 23809439 DOI: 10.1016/b978-0-12-407696-9.00006-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Periodontal ligament (PDL) tissue, central in the periodontium, plays crucial roles in sustaining tooth in the bone socket. Irreparable damages of this tissue provoke tooth loss, causing a decreased quality of life. The question arises as to how PDL tissue is maintained or how the lost PDL tissue can be regenerated. Stem cells included in PDL tissue (PDLSCs) are widely accepted to have the potential to maintain or regenerate the periodontium, but PDLSCs are very few in number. In recent studies, undifferentiated clonal human PDL cell lines were developed to elucidate the applicable potentials of PDLSCs for the periodontal regenerative medicine based on cell-based tissue engineering. In addition, it has been suggested that transforming growth factor-beta 1 is an eligible factor for the maintenance and regeneration of PDL tissue.
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Affiliation(s)
- Hidefumi Maeda
- Department of Endodontology, Kyushu University Hospital, Fukuoka, Japan.
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Harb AN, Holtfreter B, Friedrich N, Wallaschofski H, Nauck M, Kocher T. Evaluation of the periodontal status in acromegalic patients: a comparative study. ISRN DENTISTRY 2012; 2012:950486. [PMID: 23304536 PMCID: PMC3529431 DOI: 10.5402/2012/950486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 10/30/2012] [Indexed: 12/17/2022]
Abstract
Aim. The aim was to compare the periodontal status of the acromegalic patients with healthy subjects from a large population-based cohort (Study of Health in Pomerania, SHIP). Materials and Methods. We studied 32 acromegalic patients (16 females) and 128 randomly selected SHIP subjects (controls) using a 1 : 4 matching. Serum IGF-I and IGFBP-3 levels were measured using the Immulite 2500 system. Periodontitis was assessed by clinical attachment loss (CAL), probing depth (PD), and number of missing teeth. Linear and logistic regression models were used to assess differences in periodontal variables between acromegalic patients and controls. Results. IGF-I levels were comparable in acromegalic patients and controls, whereas IGFBP-3 levels were significantly higher in acromegalic patients (P = 0.004). In multivariate modelling, both groups did not differ significantly with respect to mean CAL (P = 0.12) and high tooth loss (P = 0.36). Mean PD was higher in acromegalic patients by trend (B = 0.28 (-0.00; 0.56)). Conclusion. In acromegalic patients, periodontal disease severity did not differ from their healthy SHIP controls.
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Affiliation(s)
- Ali N Harb
- Unit of Periodontology, Department of Restorative Dentistry, Periodontology, and Endodontology, Dental School, University Medicine, Ernst Moritz Arndt University of Greifswald, Greifswald 17475, Germany
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Wang WJ, Zhao YM, Feng XY, Jia WQ, Ge LH. Effect of skimmed pasteurized milk and Hank's balanced salt solution on viability and osteogenic differentiation of human periodontal ligament stem cells. Dent Traumatol 2012; 29:365-71. [PMID: 23067388 DOI: 10.1111/edt.12007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2012] [Indexed: 12/30/2022]
Abstract
BACKGROUND/AIM The purpose of this study was to compare the effect of skimmed pasteurized milk and Hank's balanced salt solution on the viability and osteogenic differentiation potential of the human periodontal ligament stem cells at room temperature in vitro. MATERIAL AND METHODS Human periodontal ligament stem cells were obtained from extracted healthy third molars and conserved in skimmed pasteurized milk and Hank's balanced salt solution for 1, 2, and 4 h at room temperature to detect the viability of the cells and their osteogenic differentiation potential. RESULTS The efficacy of skimmed pasteurized milk on cell viability at 4 h was significantly higher than that of HBSS (P < 0.05), and cells stored in skimmed pasteurized milk showed significantly higher levels of mineralization than those in HBSS at 2 and 4 h (P < 0.05). CONCLUSIONS Skimmed pasteurized milk was more effective than Hank's balanced salt solution in maintaining the viability and osteogenic differentiation potential of PDLSCs at room temperature in vitro.
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Affiliation(s)
- Wen-Jun Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
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Moder D, Taubenhansl F, Hiller KA, Schmalz G, Christgau M. Influence of autogenous platelet concentrate on combined GTR/graft therapy in intrabony defects: a 7-year follow-up of a randomized prospective clinical split-mouth study. J Clin Periodontol 2012; 39:457-65. [DOI: 10.1111/j.1600-051x.2012.01869.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Daniel Moder
- Department of Operative Dentistry and Periodontology; University of Regensburg; Regensburg; Germany
| | - Frederike Taubenhansl
- Department of Operative Dentistry and Periodontology; University of Regensburg; Regensburg; Germany
| | - Karl-Anton Hiller
- Department of Operative Dentistry and Periodontology; University of Regensburg; Regensburg; Germany
| | - Gottfried Schmalz
- Department of Operative Dentistry and Periodontology; University of Regensburg; Regensburg; Germany
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Leprince JG, Zeitlin BD, Tolar M, Peters OA. Interactions between immune system and mesenchymal stem cells in dental pulp and periapical tissues. Int Endod J 2012; 45:689-701. [DOI: 10.1111/j.1365-2591.2012.02028.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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BOONANANTANASARN K, JANEBODIN K, SUPPAKPATANA P, ARAYAPISIT T, RODSUTTHI JA, CHUNHABUNDIT P, BOONANUNTANASARN S, SRIPAIROJTHIKOON W. Morinda citrifolia leaves enhance osteogenic differentiation and mineralization of human periodontal ligament cells. Dent Mater J 2012; 31:863-71. [DOI: 10.4012/dmj.2012-053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Hatakeyama Y, Hatakeyama J, Maruya Y, Oka K, Tsuruga E, Inai T, Sawa Y. Growth Differentiation Factor 5 (GDF-5) Induces Matrix Metalloproteinase 2 (MMP-2) Expression in Periodontal Ligament Cells and Modulates MMP-2 and MMP-13 Activity in Osteoblasts. ACTA ACUST UNITED AC 2011. [DOI: 10.4137/btri.s8120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Growth differentiation factor 5 (GDF-5), a member of the transforming growth factor beta (TGF-β) superfamily expressed in periodontal tissues, promotes extracellular matrix (ECM) in periodontal ligament (PDL) cells. Matrix metalloproteinases (MMP) are proteolytic enzymes that degrade ECM and are expressed in PDL cells. To date, little is known about the regulation of MMP synthesis and secretion in PDL cells. The aim of this study is to examine the effects of GDF-5 on MMP production and activity in PDL cells. GDF-5 increased both collagen type I alpha 2 (Col Iα2) and MMP-2 gene expression in cells derived from mouse PDL tissues after 3 days of culture. Because PDL cells represent a heterogeneous population, we examined gelatinolytic activity and gene expression profiles in an osteoblast cell line. After 6, 12, 24, and 48 hours of culture, GDF-5 increased both Col Iα2 and MMP gene expression in osteoblasts. GDF-5 also promoted MMP-2 activity as revealed by gelatin zymography after 7 days of culture. In the presence of the p38 MAP kinase inhibitor SB202190, on the other hand, MMP-2 activity was blocked. Taken together, these results indicate that GDF-5 may increase simultaneously the gene expression of type I collagen and MMP-2 in the osteoblast-like cells among the PDL cells and p38 MAP kinase pathway in osteoblast could involve in the regulation of MMP-2 enzyme activity induced by GDF-5.
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Affiliation(s)
- Yuji Hatakeyama
- Section of Functional Structure, Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
| | - Junko Hatakeyama
- Section of Functional Structure, Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
| | - Yuriko Maruya
- Pediatric Dentistry, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, 980-8565, Japan
| | - Kyoko Oka
- Section of Functional Structure, Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
| | - Eichi Tsuruga
- Section of Functional Structure, Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
| | - Tetsuichiro Inai
- Section of Functional Structure, Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
| | - Yoshihiko Sawa
- Section of Functional Structure, Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan
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Lossdörfer S, Abuduwali N, Jäger A. Bone Morphogenetic Protein-7 Modifies the Effects of Insulin-Like Growth Factors and Intermittent Parathyroid Hormone (1-34) on Human Periodontal Ligament Cell Physiology In Vitro. J Periodontol 2011; 82:900-8. [DOI: 10.1902/jop.2010.100572] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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41
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Markopoulou CE, Dereka XE, Vavouraki HN, Pepelassi EE, Mamalis AA, Karoussis IK, Vrotsos IA. Effect of rhTGF-β1 combined with bone grafts on human periodontal cell differentiation. Growth Factors 2011; 29:14-20. [PMID: 21128741 DOI: 10.3109/08977194.2010.533663] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Various techniques and materials have been proposed for the treatment of periodontal defects. In periodontal regeneration, periodontal ligament (PDL) cell differentiation as well as certain growth factors and their delivery system applied are critical. The purpose of this study was to evaluate the in vitro effect of recombinant human transforming growth factor-beta 1 (rhTGF-β1) combined with two different bone grafts on human PDL (hPDL) cell differentiation. The hPDL cells were treated with TGF-β1 alone or in combination with a calcified freeze-dried bone allograft (FDBA) and a porous biphasic calcium phosphate (BC) bone graft. Cell differentiation effect was estimated by measuring alkaline phosphatase (ALPase) activity and osteocalcin secretion. Results demonstrated that rhTGF-β1 alone or in combination with FDBA and BC provoked a significant (p<0.05) increase in ALPase activity as compared with controls. The findings of this study confirmed the beneficial role of rhTGF-β1 combined with FDBA and BC as carriers in periodontal regeneration.
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Affiliation(s)
- C E Markopoulou
- Department of Periodontics, School of Dentistry, University of Athens, 2 Thivon Street, Goudi, 11527, Athens, Greece
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Lee J, Stavropoulos A, Susin C, Wikesjö UME. Periodontal regeneration: focus on growth and differentiation factors. Dent Clin North Am 2010; 54:93-111. [PMID: 20103474 DOI: 10.1016/j.cden.2009.09.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Several growth and differentiation factors have shown potential as therapeutic agents to support periodontal wound healing/regeneration, although optimal dosage, release kinetics, and suitable delivery systems are still unknown. Experimental variables, including delivery systems, dose, and the common use of poorly characterized preclinical models, make it difficult to discern the genuine efficacy of each of these factors. Only a few growth and differentiation factors have reached clinical evaluation. It appears that well-defined discriminating preclinical models followed by well-designed clinical trials are needed to further investigate the true potential of these and other candidate factors. Thus, current research is focused on finding relevant growth and differentiation factors, optimal dosages, and the best approaches for delivery to develop clinically meaningful therapies in patient-centered settings.
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Affiliation(s)
- Jaebum Lee
- Laboratory for Applied Periodontal & Craniofacial Regeneration (LAPCR), Departments of Periodontics and Oral Biology, Medical College of Georgia School of Dentistry, 1120 5th Street AD1434, Augusta, GA 30912, USA
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