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Ceresa C, Travagin F, Marchetti A, Tessarolo F, Fracchia L, Giovenzana GB, Bosetti M. An In Vitro Study on the Application of Silver-Doped Platelet-Rich Plasma in the Prevention of Post-Implant-Associated Infections. Int J Mol Sci 2024; 25:4842. [PMID: 38732057 PMCID: PMC11084394 DOI: 10.3390/ijms25094842] [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: 03/22/2024] [Revised: 04/18/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
Implant therapy is a common treatment option in dentistry and orthopedics, but its application is often associated with an increased risk of microbial contamination of the implant surfaces that cause bone tissue impairment. This study aims to develop two silver-enriched platelet-rich plasma (PRP) multifunctional scaffolds active at the same time in preventing implant-associated infections and stimulating bone regeneration. Commercial silver lactate (L) and newly synthesized silver deoxycholate:β-Cyclodextrin (B), were studied in vitro. Initially, the antimicrobial activity of the two silver soluble forms and the PRP enriched with the two silver forms has been studied on microbial planktonic cells. At the same time, the biocompatibility of silver-enriched PRPs has been assessed by an MTT test on human primary osteoblasts (hOBs). Afterwards, an investigation was conducted to evaluate the activity of selected concentrations and forms of silver-enriched PRPs in inhibiting microbial biofilm formation and stimulating hOB differentiation. PRP-L (0.3 µg/mm2) and PRP-B (0.2 µg/mm2) counteract Staphylococcus aureus, Staphylococcus epidermidis and Candida albicans planktonic cell growth and biofilm formation, preserving hOB viability without interfering with their differentiation capability. Overall, the results obtained suggest that L- and B-enriched PRPs represent a promising preventive strategy against biofilm-related implant infections and demonstrate a new silver formulation that, together with increasing fibrin binding protecting silver in truncated cone-shaped cyclic oligosaccharides, achieved comparable inhibitory results on prokaryotic cells at a lower concentration.
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Affiliation(s)
- Chiara Ceresa
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Fabio Travagin
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Alice Marchetti
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Francesco Tessarolo
- Department of Industrial Engineering & BIOtech, University of Trento, 38123 Trento, Italy;
| | - Letizia Fracchia
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Giovanni Battista Giovenzana
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Michela Bosetti
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
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Anitua E, Zalduendo M, Tierno R, Alkhraisat MH. Plasma Rich in Growth Factors in Bone Regeneration: The Proximity to the Clot as a Differential Factor in Osteoblast Cell Behaviour. Dent J (Basel) 2024; 12:122. [PMID: 38786520 PMCID: PMC11119057 DOI: 10.3390/dj12050122] [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: 03/04/2024] [Revised: 04/12/2024] [Accepted: 04/19/2024] [Indexed: 05/25/2024] Open
Abstract
The osteogenic differentiation process, by which bone marrow mesenchymal stem cells and osteoprogenitors transform into osteoblasts, is regulated by several growth factors, cytokines, and hormones. Plasma Rich in Growth Factors (PRGF) is a blood-derived preparation consisting of a plethora of bioactive molecules, also susceptible to containing epigenetic factors such as ncRNAs and EVs, that stimulates tissue regeneration. The aim of this study was to investigate the effect of the PRGF clot formulation on osteogenic differentiation. Firstly, osteoblast cells were isolated and characterised. The proliferation of bone cells cultured onto PRGF clots or treated with PRGF supernatant was determined. Moreover, the gene expression of Runx2 (ID: 860), SP7 (ID: 121340), and ALPL (ID: 249) was analysed by one-step real-time quantitative polymerase chain reaction (RT-qPCR). Additionally, alkaline phosphatase (ALPL) activity determination was performed. The highest proliferative effect was achieved by the PRGF supernatant in all the study periods analysed. Concerning gene expression, the logRGE of Runx2 increased significantly in osteoblasts cultured with PRGF formulations compared with the control group, while that of SP7 increased significantly in osteoblasts grown on the PRGF clots. On the other hand, despite the fact that the PRGF supernatant induced ALPL up-regulation, significantly higher enzyme activity was detected for the PRGF clots in comparison with the supernatant formulation. According to our results, contact with the PRGF clot could promote a more advanced phase in the osteogenic process, associated to higher levels of ALPL activity. Furthermore, the PRGF clot releasate stimulated a higher proliferation rate in addition to reduced SP7 expression in the cells located at a distant ubication, leading to a less mature osteoblast stage. Thus, the spatial relationship between the PRGF clot and the osteoprogenitors cells could be a factor that influences regenerative outcomes.
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Affiliation(s)
- Eduardo Anitua
- BTI-Biotechnology Institute, 01007 Vitoria, Spain; (M.Z.); (R.T.); (M.H.A.)
- University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), 01007 Vitoria, Spain
| | - Mar Zalduendo
- BTI-Biotechnology Institute, 01007 Vitoria, Spain; (M.Z.); (R.T.); (M.H.A.)
- University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), 01007 Vitoria, Spain
| | - Roberto Tierno
- BTI-Biotechnology Institute, 01007 Vitoria, Spain; (M.Z.); (R.T.); (M.H.A.)
- University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), 01007 Vitoria, Spain
| | - Mohammad Hamdan Alkhraisat
- BTI-Biotechnology Institute, 01007 Vitoria, Spain; (M.Z.); (R.T.); (M.H.A.)
- University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), 01007 Vitoria, Spain
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Mani R, Roopmani P, Rajendran J, Maharana S, Giri J. Cord blood platelet rich plasma (PRP) as a potential alternative to autologous PRP for allogenic preparation and regenerative applications. Int J Biol Macromol 2024; 262:129850. [PMID: 38296140 DOI: 10.1016/j.ijbiomac.2024.129850] [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: 06/12/2023] [Revised: 01/08/2024] [Accepted: 01/28/2024] [Indexed: 02/13/2024]
Abstract
As an abundant supplier of growth factors, chemokines and other bioactive molecules, platelet rich plasma (PRP) become a leading therapy for tissue regeneration. The PRP therapy is an inexpensive and feasible source of growth factor compared to commercial products however, the better source of platelets is the major challenge. Many researchers are skeptical about cord blood as an alternative source for the allogenic preparation of PRP. In the present study, we have compared adult peripheral and cord blood PRP for their regenerative capacity and immuno-modulatory nature. ELISA data indicates that the cord PRP contained a considerably higher amount of growth factors compared to adult PRP. In-vitro results indicate a significant increase in cell proliferation and migration with cord PRP treatment. The immunomodulatory evaluation shows cord blood PRP has better potential in switching activated macrophages to anti-inflammatory markers when compared with adult PRP, as well as the cytokines production indicates a significant reduction in the release of IFN-γ in cord PRP treatment. The study shows the beneficial effects of using cord blood PRP over adult PRP however, future studies are required to validate cord blood PRP as a permanent source for regenerative therapy.
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Affiliation(s)
- Rajesh Mani
- Department of Biomedical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Telangana, India; Department of Microbiology, Immunology and Molecular Genetics, University of Kentucky College of Medicine, Lexington, KY, USA
| | - Purandhi Roopmani
- Department of Biomedical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Telangana, India
| | - Jayakumar Rajendran
- Department of Biomedical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Telangana, India
| | - Sradhanjali Maharana
- Department of Obstetrics and Gynaecology, Malla Reddy Institute of Medical Sciences, Hyderabad, India
| | - Jyotsnendu Giri
- Department of Biomedical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Telangana, India.
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Mojtahedi Nia M, Shirmohammadi A, Mohammadi H, Roshangar L, Babaloo A. Effect of autologous conditioned serum (ACS) on histological characteristics and expression of soft tissue IL-1β gene after horizontal ridge augmentation surgery. JOURNAL OF ADVANCED PERIODONTOLOGY & IMPLANT DENTISTRY 2023; 15:52-55. [PMID: 37645547 PMCID: PMC10460780 DOI: 10.34172/japid.2023.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/30/2023] [Indexed: 08/31/2023]
Abstract
Background Horizontal ridge augmentation surgeries are common procedures in periodontics. Histological changes in soft tissues affect the success of surgery in many ways. Autologous conditioned serum (ACS) increases interleukin-1 receptor antagonist (IL-1Ra) and causes inflammation modulation. Therefore, the present study aimed to investigate the effect of ACS on histological changes and gene expression of soft tissues after horizontal ridge augmentation surgeries. Methods This double-blind split-mouth clinical trial was performed on patients needing implants with horizontal ridge augmentation (n=21). The control and intervention groups were considered split-mouth in two areas of the patients' oral soft tissues. A collagen membrane impregnated with ACS was used on the test side, and only a collagen membrane was used on the control side. After four months, histological changes in soft tissues, such as the amount of connective tissue collagen, fibroblast and inflammatory cell counts, and expression of the IL-1β gene, were evaluated. Results The fibroblast counts in the ACS group were significantly higher than in the control group. In addition, ACS caused a significant increase in the amount of collagen in the soft tissues compared to the control group (P<0.01). However, the number of inflammatory cells was similar in the two groups (P>0.05). IL-1β gene expression was not significantly different between the case and control groups. Conclusion Under the limitations of the present study and based on the results of histological examinations, ACS increased the number of fibroblasts and the amount of collagen in soft tissues without affecting inflammatory cells (P=0.562).
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Affiliation(s)
- Mehdi Mojtahedi Nia
- Department of Periodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Adileh Shirmohammadi
- Department of Periodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamidreza Mohammadi
- Department of Periodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Roshangar
- Department of Histology and Embryology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirreza Babaloo
- Department of Periodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
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Zigmantavičius J, Kilinskaitė G, Leketas M. Dimensional Changes of Buccal Bone after Immediate Implantation Using Different Grafting Materials: A Systematic Review. ANNALS OF DENTAL SPECIALTY 2023. [DOI: 10.51847/vykvdvpn8e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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ASSESSMENT OF MICROCIRCULATION IN PATIENTS WITH GENERALIZED PERIODONTITIS DURING TREATMENT WITH AUTOPLASMA AND HYALURONIC ACID. WORLD OF MEDICINE AND BIOLOGY 2022. [DOI: 10.26724/2079-8334-2022-1-79-34-39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Samiei M, Alipour M, Khezri K, Saadat YR, Forouhandeh H, Abdolahinia ED, Vahed SZ, Sharifi S, Dizaj SM. Application of collagen and mesenchymal stem cells in regenerative dentistry. Curr Stem Cell Res Ther 2021; 17:606-620. [PMID: 34931969 DOI: 10.2174/1574888x17666211220100521] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/28/2021] [Accepted: 11/10/2021] [Indexed: 11/22/2022]
Abstract
Collagen is an important macromolecule of extracellular matrix (ECM) in bones, teeth, and temporomandibular joints. Mesenchymal stem cells (MSCs) interact with the components of the ECM such as collagen, proteoglycans, glycosaminoglycans (GAGs), and several proteins on behalf of variable matrix elasticity and bioactive cues. Synthetic collagen-based biomaterials could be effective scaffolds for regenerative dentistry applications due to mimicking of host tissues' ECM. These biomaterials are biocompatible, biodegradable, readily available, and non-toxic to cells whose capability promotes cellular response and wound healing in the craniofacial region. Collagen could incorporate other biomolecules to induce mineralization in calcified tissues such as bone and tooth. Moreover, the addition of these molecules or other polymers to collagen-based biomaterials could enhance mechanical properties, which is important in load-bearing areas such as the mandible. A literature review was performed via reliable internet database (mainly PubMed) based on MeSH keywords. This review first describes the properties of collagen as a key protein in the structure of hard tissues. Then, it introduces different types of collagens, the correlation between collagen and MSCs, and the methods used to modify collagen in regenerative dentistry including recent progression on the regeneration of periodontium, dentin-pulp complex, and temporomandibular joint by applying collagen. Besides, the prospects and challenges of collagen-based biomaterials in the craniofacial region pointes out.
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Affiliation(s)
- Mohammad Samiei
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdieh Alipour
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khadijeh Khezri
- Deputy of Food and Drug Administration, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Haleh Forouhandeh
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elaheh Dalir Abdolahinia
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Simin Sharifi
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Solmaz Maleki Dizaj
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Zhang Y, Xing F, Luo R, Duan X. Platelet-Rich Plasma for Bone Fracture Treatment: A Systematic Review of Current Evidence in Preclinical and Clinical Studies. Front Med (Lausanne) 2021; 8:676033. [PMID: 34414200 PMCID: PMC8369153 DOI: 10.3389/fmed.2021.676033] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 07/06/2021] [Indexed: 02/05/2023] Open
Abstract
Background: Recently, there is an increasing interest in the therapeutic potential of platelet-rich plasma (PRP) for bone fracture treatment. Nevertheless, the effect of PRP for bone fracture treatment remains controversial and is still a matter of discussion. Therefore, we performed a systematic review to evaluate the efficacy and safety of PRP injection for treatment of bone fracture. Methods: The main bibliographic databases, including Medline, PubMed, Embase, Web of Science, and the Cochrane library, were comprehensively searched for studies focusing on the application of platelet-rich plasma (PRP) on bone fracture treatment. All relevant articles were screened for eligibility and subdivided into the preclinical and clinical studies. Data were extracted and presented systematically. Results: Finally, twenty-six in vitro preclinical studies (basic studies), nine in vivo preclinical studies (animal studies), and nine clinical studies, met the selection criteria, and were included in the present systematic review. Preclinical studies showed an overall positive effect of PRP on osteoblast-like cells in vitro and bone healing in animal models. The most used treatment for bone fracture in animal and clinical studies is fixation surgery combined with PRP injection. The clinical studies reported PRP shortened bony healing duration, and had no positive effect on improving the healing rate of closed fractures. However, the results of functional outcomes are controversial. Additionally, compared with control group, PRP would not increase the rate of postoperative wound infection. Conclusion: The present systematic review confirmed the continuing interests of PRP as an additional treatment for bone fracture. Preclinical studies highlighted the potential value of PRP as promising therapy for bone fracture. However, the preclinical evidence did not translate into a similar result in the clinical studies. In addition, types of fractures and procedures of PRP preparation are heterogeneous in enrolled studies, which might result in controversial results. Meanwhile, characteristics of PRP, such as platelet concentration, the numbers of leukocytes, still need to be determined and further research is required.
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Affiliation(s)
- Yangming Zhang
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
| | - Fei Xing
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
| | - Rong Luo
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
| | - Xin Duan
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
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González-Serrano J, Vallina C, González-Serrano C, Sánchez-Monescillo A, Torres J, Hernández G, López-Pintor RM. Effect of Platelet Concentrates on Marginal Bone Loss of Immediate Implant Procedures: A Systematic Review and Meta-Analysis. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4582. [PMID: 34443105 PMCID: PMC8401659 DOI: 10.3390/ma14164582] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/06/2021] [Accepted: 08/11/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND To evaluate marginal bone loss (MBL) in immediate implant procedures (IIP) placed in conjunction with platelet concentrates (PCs) compared to IIP without PCs. METHODS A search was performed in four databases. Clinical trials evaluating MBL of IIP placed with and without PCs were included. The random effects model was conducted for meta-analysis. RESULTS Eight clinical trials that evaluated MBL in millimeters were included. A total of 148 patients and 232 immediate implants were evaluated. The meta-analysis showed a statistically significant reduction on MBL of IIP placed with PCs when compared to the non-PCs group at 6 months (p < 0.00001) and 12 months (p < 0.00001) follow-ups. No statistically significant differences were observed on MBL of IIP when compared PCs + bone graft group vs. only bone grafting at 6 months (p = 0.51), and a significant higher MBL of IIP placed with PCs + bone graft when compared to only bone grafting at 12 months was found (p = 0.03). CONCLUSIONS MBL of IIP at 6 and 12 months follow-ups is lower when PCs are applied in comparison to not placing PCs, which may lead to more predictable implant treatments in the medium term. However, MBL seems not to diminish when PCs + bone graft are applied when compared to only bone grafting.
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Affiliation(s)
- José González-Serrano
- ORALMED Research Group, Department of Dental Clinical Specialties, School of Dentistry, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (C.V.); (J.T.); (G.H.); (R.M.L.-P.)
| | - Carmen Vallina
- ORALMED Research Group, Department of Dental Clinical Specialties, School of Dentistry, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (C.V.); (J.T.); (G.H.); (R.M.L.-P.)
| | - Carlos González-Serrano
- IDIBO Research Group, Stomatology Department, School of Health Sciences, Rey Juan Carlos University, Av. de Atenas, S/N, Alcorcón, 28922 Madrid, Spain;
| | - Andrés Sánchez-Monescillo
- Division of Restorative Sciences, Norris Dental Science Center, Herman Ostrow School of Dentistry, University of Southern California, 925 W 34th Street, DEN 311, Los Angeles, CA 90089-0641, USA;
| | - Jesús Torres
- ORALMED Research Group, Department of Dental Clinical Specialties, School of Dentistry, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (C.V.); (J.T.); (G.H.); (R.M.L.-P.)
| | - Gonzalo Hernández
- ORALMED Research Group, Department of Dental Clinical Specialties, School of Dentistry, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (C.V.); (J.T.); (G.H.); (R.M.L.-P.)
| | - Rosa María López-Pintor
- ORALMED Research Group, Department of Dental Clinical Specialties, School of Dentistry, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (C.V.); (J.T.); (G.H.); (R.M.L.-P.)
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Zhan X, Yan W, Yan J, Tong W, Chen W, Lin Y. LPCGF and EDTA conditioning of the root surface promotes the adhesion, growth, migration and differentiation of periodontal ligament cells. J Periodontol 2020; 92:738-747. [PMID: 32835432 DOI: 10.1002/jper.20-0103] [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: 02/14/2020] [Revised: 06/26/2020] [Accepted: 07/27/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND Liquid-phase concentrated growth factor (LPCGF), a new-generation platelet concentrate, may potently stimulate human periodontal ligament (PDL) cells. This study assessed the effectiveness of ethylenediaminetetraacetic acid (EDTA) and/or LPCGF on periodontally diseased root surfaces through their effects on PDL cells. METHODS Dentin blocks prepared from periodontal teeth were divided into four groups and treated as follows: group I, scaling and root planning (SRP); group II, SRP + EDTA; group III, SRP + LPCGF; and group IV, SRP+EDTA + LPCGF. PDL cells were cultured on dentin blocks, and LPCGF-induced biological effects were evaluated by migration and cell adhesion/proliferation assays. Furthermore, PDL cell differentiation was assessed by real-time polymerase chain reaction (PCR). RESULTS Significantly more adherent cells were observed in the EDTA, LPCGF and combination treatment groups than in the control group. Root conditioning with EDTA and/or LPCGF enhanced cell proliferation and migration more than SRP did. Compared with the control group, the combined treatment group exhibited significant upregulation of cell differentiation-related genes. Electron microscopy of the tooth surface revealed removal of the smear layer and exposed dentin holes in the EDTA-treated group but not in the control group. CONCLUSION EDTA and LPCGF application to periodontitis-affected root surfaces forms a surface suitable for cell attachment, growth, migration and differentiation. Thus, LPCGF is promising in clinical periodontics applications. Further studies to support these results are necessary.
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Affiliation(s)
- Xuan Zhan
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.,Institute of Stomatology and Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Wencheng Yan
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.,Institute of Stomatology and Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.,Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Stomatological Hospital of Xiamen Medical College, Xiamen, China
| | - Jun Yan
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.,Institute of Stomatology and Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Wei Tong
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.,Institute of Stomatology and Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Weirong Chen
- Fujian Key Laboratory of Oral Diseases and Fujian Provincial Engineering Research Center of Oral Biomaterial and Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.,Institute of Stomatology and Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Yanfang Lin
- Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
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11
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Wang ZQ, Xiu DH, Jiang JL, Liu GF. Long non-coding RNA XIST binding to let-7c-5p contributes to rheumatoid arthritis through its effects on proliferation and differentiation of osteoblasts via regulation of STAT3. J Clin Lab Anal 2020; 34:e23496. [PMID: 32881056 PMCID: PMC7676202 DOI: 10.1002/jcla.23496] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 06/21/2020] [Accepted: 06/29/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA), a chronic autoimmune disease, affects around 1% population worldwide, with the life quality of patients severely reduced. In this study, it is intended to explore the role of long non-coding RNA X-inactive specific transcript (lncRNA XIST) in RA and the underlying mechanisms associated with let-7c-5p and signal transducer and activator of transcription 3 (STAT3). METHODS LncRNA XIST, let-7c-5p, and STAT3 expressions were determined in RA and normal cartilage tissues, and their relationship was analyzed in osteoblasts. The regulatory effects of lncRNA XIST in RA were investigated when XIST expression was upregulated or downregulated in osteoblasts. TNF-α, IL-2, IL-6, alkaline phosphatase (ALP), osteocalcin, TGF-β1, and IGF1 were measured in vivo in RA rats. RESULTS LncRNA XIST and STAT3 were expressed at high levels and let-7c-5p expressed at a low level in RA cartilage tissues. LncRNA XIST silencing or let-7c-5p enhancement led to decreased levels of TNF-α, IL-2, and IL-6, suggestive of suppressed inflammatory response, and increased levels of ALP, osteocalcin, TGF-β1, and IGF-1 as well as reduced damage in cartilage tissues. CONCLUSION LncRNA XIST downregulation could promote proliferation and differentiation of osteoblasts in RA, serving as a future therapeutic target for RA.
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Affiliation(s)
- Zong-Qiang Wang
- Medical Department, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Dian-Hui Xiu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jin-Lan Jiang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China.,Scientific Research Center, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Gui-Feng Liu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, China
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12
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Zheng S, Zhang X, Zhao Q, Chai J, Zhang Y. Liquid platelet-rich fibrin promotes the regenerative potential of human periodontal ligament cells. Oral Dis 2020; 26:1755-1763. [PMID: 32564447 DOI: 10.1111/odi.13501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 05/25/2020] [Accepted: 06/10/2020] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To compare the biological effect of PRP and liquid-PRF on human periodontal ligament cells (hPDLCs) in vitro. METHODS The liquid-PRF was processed with centrifugation at 700 g for 3 min, and PRP was processed according to Curasan's protocol. Migration and proliferation assay were performed by a scratch/Transwell assay and a CCK-8 assay, respectively. To investigate hPDLC differentiation, alkaline phosphatase (ALP) assay, Alizarin Red S staining, and gene expression level detection of Runx2, Col1a1, and OCN were conducted. Furthermore, cells cultured with lipopolysaccharide (LPS) to induce an inflammation condition were utilized to investigate the impact of liquid-PRF on inflammatory resolution. RESULTS Either PRP or liquid-PRF can promote proliferation, migration of hPDLCs, and osteogenic differentiation of hPDLCs. It was noteworthy that liquid-PRF demonstrated a significantly higher ability to promote the biological differentiation and mineralization of hPDLCs compared with PRP. Lastly, when hPDLCs were incubated with LPS, cells cultured with liquid-PRF showed significantly lower mRNA expression levels of inflammatory genes. CONCLUSIONS Liquid-PRF notably promoted hPDLC activity and attenuated the inflammatory state induced by LPS.
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Affiliation(s)
- Shihang Zheng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Xiaoxin Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Dental Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Qin Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jihua Chai
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Dental Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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13
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Development and application of a 3D periodontal in vitro model for the evaluation of fibrillar biomaterials. BMC Oral Health 2020; 20:148. [PMID: 32429904 PMCID: PMC7238548 DOI: 10.1186/s12903-020-01124-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 04/28/2020] [Indexed: 02/07/2023] Open
Abstract
Background Periodontitis is a chronic inflammation of the tooth supporting structures that finally can lead to tooth loss. As chronic periodontitis is associated with systemic diseases multiple approaches have been followed to support regeneration of the destructed tissue. But very few materials are actually used in the clinic. A new and promising group of biomaterials with advantageous biomechanical properties that have the ability to support periodontal regeneration are self-assembling peptides (SAP). However, there is still a lack of 3D periodontal models that can evaluate the migration potential of such novel materials. Methods All experiments were performed with primary human periodontal ligament fibroblasts (HPLF). Migration capacity was assessed in a three-dimensional model of the human periodontal ligament by measuring the migration distance of viable cells on coated (Enamel Matrix Protein (EMP), P11–4, collagen I) or uncoated human dentin. Cellular metabolic activity on P11–4 hydrogels was assessed by a metabolic activity assay. Deposition of ECM molecules in a P11–4 hydrogel was visualized by immunostaining of collagen I and III and fibrillin I. Results The 3D periodontal model was feasible to show the positive effect of EMP for periodontal regeneration. Subsequently, self-assembling peptide P11–4 was used to evaluate its capacity to support regenerative processes in the 3D periodontal model. HPLF coverage of the dentin surface coated with P11–4 increased significantly over time, even though delayed compared to EMP. Cell viability increased and inclusion of ECM proteins into the biomaterial was shown. Conclusion The presented results indicate that the 3D periodontal model is feasible to assess periodontal defect coverage and that P11–4 serves as an efficient supporter of regenerative processes in the periodontal ligament. Clinical relevance The establishment of building-block synthetic polymers offers new opportunities for clinical application in dentistry. Self-assembling peptides represent a new generation of biomaterials as they are able to respond dynamically to the changing environment of the biological surrounding. Especially in the context of peri-implant disease prevention and treatment they enable the implementation of new concepts.
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14
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Allogeneic Platelet-Rich Plasma Therapy as an Effective and Safe Adjuvant Method for Chronic Wounds. J Surg Res 2020; 246:284-291. [DOI: 10.1016/j.jss.2019.09.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 07/22/2019] [Accepted: 09/13/2019] [Indexed: 12/19/2022]
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15
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The Effect of Blood-Derived Products on the Chondrogenic and Osteogenic Differentiation Potential of Adipose-Derived Mesenchymal Stem Cells Originated from Three Different Locations. Stem Cells Int 2019; 2019:1358267. [PMID: 32082382 PMCID: PMC7012275 DOI: 10.1155/2019/1358267] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/01/2019] [Accepted: 11/29/2019] [Indexed: 02/06/2023] Open
Abstract
Background Adipose-derived mesenchymal stem cells (AD-MSCs) from fat tissue considered “surgical waste” during joint surgery may provide a potent source for regenerative medicine. Intra-articular, homologous fat tissue (Hoffa's fat pad, pouch fat) might possess a superior chondrogenic and osteogenic differentiation potential in comparison to extra-articular, nonhomologous fat. Blood products might further enhance this potential. Methods AD-MSCs were isolated from fat tissue of 3 donors from 3 locations each, during total knee replacement. Isolated cells were analyzed via flow cytometry. Cells were supplemented with blood products: two types of platelet-rich plasma (EPRP—PRP prepared in the presence of EDTA; CPRP—PRP prepared in the presence of citrate), hyperacute serum (hypACT), and standard fetal calf serum (FCS) as a positive control. The viability of the cells was determined by XTT assay, and the progress of differentiation was tested via histological staining and monitoring of specific gene expression. Results Blood products enhance ex vivo cell metabolism. Chondrogenesis is enhanced by EDTA-PRP and osteogenesis by citrate PRP, whereas hyperacute serum enhances both differentiations comparably. This finding was consistent in histological analysis as well as in gene expression. Lower blood product concentrations and shorter differentiation periods lead to superior histological results for chondrogenesis. Both PRP types had a different biological effect depending upon concentration, whereas hyperacute serum seemed to have a more consistent effect, independent of the used concentration. Conclusion (i) Blood product preparation method, (ii) type of anticoagulant, (iii) differentiation time, and (iv) blood product concentration have a significant influence on stem cell viability and the differentiation potential, favouring no use of anticoagulation, shorter differentiation time, and lower blood product concentrations. Cell-free blood products like hyperacute serum may be considered as an alternative supplementation in regenerative medicine, especially for stem cell therapies.
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Systematic Comparison of the Effect of Four Clinical-Grade Platelet Rich Hemoderivatives on Osteoblast Behaviour. Int J Mol Sci 2019; 20:ijms20246243. [PMID: 31835696 PMCID: PMC6941155 DOI: 10.3390/ijms20246243] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/09/2019] [Accepted: 12/09/2019] [Indexed: 02/07/2023] Open
Abstract
Hemoderivatives have utilized in an empirical manner, driven by clinical considerations, leading to the development of a plethora of manufacturing protocols. The purpose of this study was to investigate the composition and bioactivity of four common clinical-grade hemoderivates prepared using standardised methods. Four different hemoderivatives were obtained from sheep blood and divided into two groups: A-PRF/i-PRF (fresh) and P-PRP/L-PRP (anticoagulated). Thrombus (CLOT) was used as a control. Thrombocyte quantification, growth factor composition (IGF-I, VEGF, PDGF-BB, BMP-2), cell viability, migration and mineralization assay were evaluated. Platelet recovery was superior for L-PRP followed by P-PRP. A significant cumulative release of IGF-I and PDGF-BB was noted for A-PRF and L-PRP groups at early time points. Similar release profiles of BMP-2 and VEGF were noted in all protocols. Cell viability and migration assay have demonstrated a detrimental effect when the concentration was ≥60%. Moreover, at Day 21, i-PRF have demonstrated superior mineralisation properties when compared to all groups. A negative impact of A-PRF was demonstrated at high concentrations. Despite its low content in growth factors, i-PRF was the best performing blood product for inducing osteoblast mineralisation, and therefore could be the candidate of choice for utilisation in bone tissue engineering applications.
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17
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Abdul Ameer LA, Raheem ZJ, Abdulrazaq SS, Ali BG, Nasser MM, Khairi AWA. The anti-inflammatory effect of the platelet-rich plasma in the periodontal pocket. Eur J Dent 2019; 12:528-531. [PMID: 30369798 PMCID: PMC6178670 DOI: 10.4103/ejd.ejd_49_18] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Objective Chronic periodontitis (CP) is a common inflammatory disease that causes destruction to the supporting tissues of the teeth. Many treatment modalities tried to stop the disease progression. Platelet-rich plasma (PRP) is one of the regenerative methods that used in adjunct to conventional periodontal treatment. The aim of this study was to evaluate the anti-inflammatory effect of PRP by monitoring the lymphocyte count before and after its application to the periodontal pocket. Materials and Methods Twenty patients, with CP and a pocket depth equal to or deeper than 4 mm, subjected to scaling, root planing, and PRP injection into the pocket. The lymphocyte count measured before and after 1 month from PRP application. Clinical periodontal parameters were taken during two visits (1 month apart), with customized stent fabrication. Results All clinical periodontal parameters showed a reduction in their value following 1 month of PRP application. There was a noticeable reduction in lymphocyte count from (mean 2.47 ± 0.91) to (mean 1.94 ± 0.77). Conclusion In addition to its traditional uses, PRP has a great role in the periodontal treatment by its anti-inflammatory effect.
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Affiliation(s)
- Lubaba A Abdul Ameer
- Department of Periodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Zainab J Raheem
- Department of Periodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Saif Saadedeen Abdulrazaq
- Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Basima Gh Ali
- Department of Periodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
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Fujioka-Kobayashi M, Miron RJ, Lussi A, Gruber R, Ilie N, Price RB, Schmalz G. Effect of the degree of conversion of resin-based composites on cytotoxicity, cell attachment, and gene expression. Dent Mater 2019; 35:1173-1193. [DOI: 10.1016/j.dental.2019.05.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 05/14/2019] [Indexed: 01/13/2023]
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19
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Nguyen MTN, Tran HLB. Effect of Modified Bovine Pericardium on Human Gingival Fibroblasts in vitro. Cells Tissues Organs 2019; 206:296-307. [PMID: 31357195 DOI: 10.1159/000501807] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 06/28/2019] [Indexed: 12/17/2022] Open
Abstract
Supportive membranes have recently been applied to treat periodontal disease in order to achieve periodontal tissue regeneration. The crucial role of these membranes is to facilitate the restoration of the structural and functional periodontium. Bovine pericardium (BP) is mainly composed of collagen type I, which was demonstrated to have good mechanical properties and biological regenerative potential. Our research aimed to extend the application of membrane derived from BP to periodontal disease treatment. However, the fabrication method to achieve a xenogenic-free membrane with the mechanical properties required for periodontal treatment is rarely mentioned. Therefore, a procedure for the extraction and modification of BP using sodium dodecyl sulfate (SDS) and glutaraldehyde (GA) was developed. BP was harvested and decellularized using different SDS concentrations (0.05-0.3%). GA was used to further modify the membranes to achieve suitable thickness, mechanical strength, and pore size. A combination protocol of 0.15% SDS treatment for 12 h with continuous agitation combined with 0.1% GA for 6 h for membrane fabricating was applied. The modified BP (mBP) had the targeted characteristics, such as 0.2-0.5 mm thickness, approximately 10 MPa in tensile strength, 30% in strain force, and a pore size <5 µm, which is comparable to commercially available collagen membranes. Findings from this study demonstrated that the established method was effective in preparing BP membrane for periodontal treatment while decreasing the concentration of reagents and processing time. Moreover, our modified membrane was found to have no cytotoxicity but supports the migration, attachment, and proliferation of human gingival fibroblasts in vitro. Taken together, these results confirmed that mBP is suitable for application in periodontal disease treatment and regeneration.
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Affiliation(s)
- My Thi Ngoc Nguyen
- Laboratory of Tissue Engineering and Biomedical Materials, Department of Physiology and Animal Biotechnology, University of Science, Vietnam National University, Ho Chi Minh, Vietnam
| | - Ha Le Bao Tran
- Laboratory of Tissue Engineering and Biomedical Materials, Department of Physiology and Animal Biotechnology, University of Science, Vietnam National University, Ho Chi Minh, Vietnam,
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Positive impact of Platelet-rich plasma and Platelet-rich fibrin on viability, migration and proliferation of osteoblasts and fibroblasts treated with zoledronic acid. Sci Rep 2019; 9:8310. [PMID: 31165745 PMCID: PMC6549154 DOI: 10.1038/s41598-019-43798-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 04/30/2019] [Indexed: 02/08/2023] Open
Abstract
Bisphosphonates are frequently used for the antiresorptive treatment in bone metastasis diseases or for osteoporosis. A side effect of this therapy is osteonecrosis of the jaw. This inhibits osteoclast function, but osteoblasts and fibroblasts are also negatively affected in terms of impaired proliferation. Additive local treatment with platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) promotes adhesion, proliferation and migration of cells due to high concentrations of growth factors like PDGF, TGF and IGF. The aim of the study was to investigate the effect of PRP or PRF on proliferation, migration and viability of osteoblasts and oral fibroblasts, treated with zoledronic acid (ZA). ZA treated fibroblasts and osteoblasts were exposed to PRP/PRF. Cell proliferation, migration and viability were measured using the real-time cell-analyzer assay (RTCA), the scratch assay and the MTT assay. There was a significant increase in closure of the scratch area by PRP/PRF treated osteoblasts (PRP = 40.6%, PRF = 100.0%, NC = 0.0%) as well as fibroblasts (PRP = 100.0%, PRF = 100.0%, NC = 12.7%) in comparison to the group of negative control (all p ≤ 0.05). Furthermore, the negative effect of ZA on cell migration was generally reduced in both cell lines using PRP/PRF. The viability and proliferation of cells decreased after exposure to ZA, whereas we observed an enhancement of cell viability within 24 hours by application of PRP/PRF in ZA treated cells. The negative effect of ZA on cell proliferation was especially reduced when using PRF. The use of PRF/PRP improves the behavior of ZA-treated cells, but PRF appears to have an advantage in comparison to PRP. This study demonstrates that treatment with PRF/PRP may have positive effects in the therapy of Bisphosphonate-Related Osteonecrosis of the Jaw (BRONJ).
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21
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Janjić K, Bauer P, Edelmayer M, Cvikl B, Schädl B, Moritz A, Agis H. Angiogenin production in response to hypoxia and l-mimosine in periodontal fibroblasts. J Periodontol 2019; 90:674-681. [PMID: 30549272 DOI: 10.1002/jper.18-0172] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 10/12/2018] [Accepted: 11/16/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND A major mediator of angiogenesis is angiogenin, which is expressed in the early phase of healing in oral tissue engineering strategies. It is unclear how angiogenin is regulated in the periodontal tissue. The objective of this study was to reveal the regulation of angiogenin in response to hypoxia and the hypoxia mimetic agent l-mimosine in periodontal fibroblasts. METHODS Human fibroblasts of the periodontal ligament (PDLF) and the gingiva (GF) in monolayer and spheroid cultures were exposed to hypoxia or l-mimosine. The production of angiogenin was evaluated at mRNA and protein levels with reverse transcription quantitative polymerase chain reaction and enzyme-linked immunosorbent assays, respectively. Echinomycin, an inhibitor of hypoxia-inducible factor (HIF)-1 activity, was used to test the involvement of HIF-1. RESULTS Our data show that hypoxia and l-mimosine can increase angiogenin mRNA and protein levels in PDLF monolayer cultures. In GF monolayer cultures, we found an increase of angiogenin at the mRNA level in response to hypoxia. The increase of angiogenin can be blocked by inhibition of HIF-1 signaling via echinomycin. In PDLF and GF spheroid cultures, the impact of hypoxia and l-mimosine did not reach the level of significance. CONCLUSION Hypoxia and the hypoxia mimetic agent l-mimosine can increase the production of angiogenin via HIF-1 signaling in PDLF monolayer cultures but not in spheroid cultures. GF were less sensitive to the impact of hypoxia and l-mimosine. Overall, these results suggest a link between hypoxia, HIF-1 signaling and angiogenin in the periodontium.
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Affiliation(s)
- Klara Janjić
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Peter Bauer
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Michael Edelmayer
- Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Department of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Barbara Cvikl
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Barbara Schädl
- Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
| | - Andreas Moritz
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Hermann Agis
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
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22
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Biological and Mechanical Properties of Platelet-Rich Fibrin Membranes after Thermal Manipulation and Preparation in a Single-Syringe Closed System. Int J Mol Sci 2018; 19:ijms19113433. [PMID: 30388866 PMCID: PMC6274993 DOI: 10.3390/ijms19113433] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/24/2018] [Accepted: 10/29/2018] [Indexed: 12/12/2022] Open
Abstract
Platelet-rich fibrin (PRF) membrane is a three-dimensional biodegradable biopolymer, which consists of platelet derived growth factors enhancing cell adhesion and proliferation. It is widely used in soft and hard tissue regeneration, however, there are unresolved problems with its clinical application. Its preparation needs open handling of the membranes, it degrades easily, and it has a low tensile strength which does not hold a suture blocking wider clinical applications of PRF. Our aim was to produce a sterile, suturable, reproducible PRF membrane suitable for surgical intervention. We compared the biological and mechanical properties of PRF membranes created by the classical glass-tube and those that were created in a single-syringe closed system (hypACT Inject), which allowed aseptic preparation. HypACT Inject device produces a PRF membrane with better handling characteristics without compromising biological properties. Freeze-thawing resulted in significantly higher tensile strength and higher cell adhesion at a lower degradation rate of the membranes. Mesenchymal stem cells seeded onto PRF membranes readily proliferated on the surface of fresh, but even better on freeze/thawed or freeze-dried membranes. These data show that PRF membranes can be made sterile, more uniform and significantly stronger which makes it possible to use them as suturable surgical membranes.
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23
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Bizelli-Silveira C, Pullisaar H, Abildtrup LA, Andersen OZ, Spin-Neto R, Foss M, Kraft DCE. Strontium enhances proliferation and osteogenic behavior of periodontal ligament cells in vitro. J Periodontal Res 2018; 53:1020-1028. [PMID: 30207394 DOI: 10.1111/jre.12601] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 07/09/2018] [Accepted: 08/02/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND OBJECTIVE Strontium (Sr) enhances osteogenic differentiation of certain multipotent cells. Periodontal ligament cells (PDLCs) are known to be multipotent, and Sr might be useful in periodontal bone tissue engineering. This study investigates the effect of high concentration of Sr on the proliferation and osteogenic behavior of PDLCs in vitro. MATERIAL AND METHODS Primary human PDLCs were cultured in MEM + 10% FBS without (Ctrl) or with Sr in four diverse concentrations: Sr1, 11.3 × 10-3 mg/L, human serum physiological level; Sr2, 13 mg/L, typical human serum level after strontium ranelate treatment; Sr3, 130 mg/L, and Sr4, 360 mg/L. The spreading area (2, 4, 6, 24 hours), proliferation rate (1, 3, 7 days), osteogenic behavior (alkaline phosphatase - ALP activity, 7 and 14 days; expression of osteogenic genes, ALP, Runt-related transcription factor 2 - RUNX2, osteopontin - OPN, osteocalcin - OCN, and osteoprotegerin -OPG, 1, 3, 7, 14, 21 days), and formation of mineralized nodules (14 and 21 days) of the PDLCs were assessed. Data were compared group- and period-wise using ANOVA tests. RESULTS Periodontal ligament cells cultured with Sr4 showed increased spreading area (after 4 hours), proliferation rate (from 3 days), and OCN and OPN (from 7 days) gene expression as compared to Ctrl, Sr1, Sr2, and Sr3. Sr4 also led to lower ALP activity (from 7 days), ALP (from 3 days), and RUNX2 (at 7 and 14 days) gene expression, together with more evident formation of mineralized nodules, compared to Ctrl, Sr1, Sr2, and Sr3. CONCLUSION Periodontal ligament cells responded to Sr4 with increased cellular proliferation and osteogenic behavior in vitro.
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Affiliation(s)
- Carolina Bizelli-Silveira
- Department of Dentistry and Oral Health, Faculty of Health, Aarhus University, Aarhus, Denmark.,Department of Physics and Astronomy, Interdisciplinary Nanoscience Center (iNANO), Faculty of Science and Technology, Aarhus University, Aarhus, Denmark
| | - Helen Pullisaar
- Department of Dentistry and Oral Health, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Lisbeth A Abildtrup
- Department of Dentistry and Oral Health, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Ole Z Andersen
- Department of Physics and Astronomy, Interdisciplinary Nanoscience Center (iNANO), Faculty of Science and Technology, Aarhus University, Aarhus, Denmark
| | - Rubens Spin-Neto
- Department of Dentistry and Oral Health, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Morten Foss
- Department of Physics and Astronomy, Interdisciplinary Nanoscience Center (iNANO), Faculty of Science and Technology, Aarhus University, Aarhus, Denmark
| | - David C E Kraft
- Department of Dentistry and Oral Health, Faculty of Health, Aarhus University, Aarhus, Denmark
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Wu M, Wang J, Zhang Y, Liu H, Dong F. Mineralization Induction of Gingival Fibroblasts and Construction of a Sandwich Tissue-Engineered Complex for Repairing Periodontal Defects. Med Sci Monit 2018; 24:1112-1123. [PMID: 29470454 PMCID: PMC5830924 DOI: 10.12659/msm.908791] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The ideal healing technique for periodontal tissue defects would involve the functional regeneration of the alveolar bone, cementum, and periodontal ligament, with new periodontal attachment formation. In this study, gingival fibroblasts were induced and a "sandwich" tissue-engineered complex (a tissue-engineered periodontal membrane between 2 tissue-engineered mineralized membranes) was constructed to repair periodontal defects. We evaluated the effects of gingival fibroblasts used as seed cells on the repair of periodontal defects and periodontal regeneration. MATERIAL AND METHODS Primitively cultured gingival fibroblasts were seeded bilaterally on Bio-Gide collagen membrane (a tissue-engineered periodontal membrane) or unilaterally on small intestinal submucosa segments, and their mineralization was induced. A tissue-engineered sandwich was constructed, comprising the tissue-engineered periodontal membrane flanked by 2 mineralized membranes. Periodontal defects in premolar regions of Beagles were repaired using the tissue-engineered sandwich or periodontal membranes. Periodontal reconstruction was compared to normal and trauma controls 10 or 20 days postoperatively. RESULTS Periodontal defects were completely repaired by the sandwich tissue-engineered complex, with intact new alveolar bone and cementum, and a new periodontal ligament, 10 days postoperatively. CONCLUSIONS The sandwich tissue-engineered complex can achieve ideal periodontal reconstruction rapidly.
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Affiliation(s)
- Mingxuan Wu
- Department of Oral Medicine, College and Hospital of Stomatology, Hebei Medical University; The Key Laboratory of Stomatology, Shijiazhuang, Hebei, China (mainland)
| | - Jie Wang
- Department of Oral Pathology, College and Hospital of Stomatology, Hebei Medical University; The Key Laboratory of Stomatology, Shijiazhuang, Hebei, China (mainland)
| | - Yanning Zhang
- Department of Oral Pathology, College and Hospital of Stomatology, Hebei Medical University; The Key Laboratory of Stomatology, Shijiazhuang, Hebei, China (mainland)
| | - Huijuan Liu
- Department of Oral Pathology, College and Hospital of Stomatology, Hebei Medical University; The Key Laboratory of Stomatology, Shijiazhuang, Hebei, China (mainland)
| | - Fusheng Dong
- Department of Oral and Maxillofacial Surgery, College and Hospital of Stomatology, Hebei Medical University; The Key Laboratory of Stomatology, Shijiazhuang, Hebei, China (mainland)
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Comparative Analysis of Different Platelet Lysates and Platelet Rich Preparations to Stimulate Tendon Cell Biology: An In Vitro Study. Int J Mol Sci 2018; 19:ijms19010212. [PMID: 29320421 PMCID: PMC5796161 DOI: 10.3390/ijms19010212] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/05/2018] [Accepted: 01/08/2018] [Indexed: 02/07/2023] Open
Abstract
The poor healing potential of tendons is still a clinical problem, and the use of Platelet Rich Plasma (PRP) was hypothesized to stimulate healing. As the efficacy of PRPs remains unproven, platelet lysate (PL) could be an alternative with its main advantages of storage and characterization before use. Five different blood products were prepared from 16 male donors: human serum, two PRPs (Arthrex, (PRP-ACP); RegenLab (PRP-BCT)), platelet concentrate (apheresis, PC), and PL (freezing-thawing destruction of PC). Additionally, ten commercial allogenic PLs (AlloPL) from pooled donors were tested. The highest concentration of most growth factors was found in AlloPL, whereas the release of growth factors lasted longer in the other products. PRP-ACP, PRP-BCT, and PC significantly increased cell viability of human tenocyte-like cells, whereas PC and AlloPL increased Col1A1 expression and PRP-BCT increased Col3A1 expression. MMP-1, IL-1β, and HGF expression was significantly increased and Scleraxis expression decreased by most blood products. COX1 expression significantly decreased by PC and AlloPL. No clear positive effects on tendon cell biology could be shown, which might partially explain the weak outcome results in clinical practice. Pooled PL seemed to have the most beneficial effects and might be the future in using blood products for tendon tissue regeneration.
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Kobayashi E, Fujioka-Kobayashi M, Sculean A, Chappuis V, Buser D, Schaller B, Dőri F, Miron RJ. Erratum to: Effects of platelet rich plasma (PRP) on human gingival fibroblast, osteoblast and periodontal ligament cell behaviour. BMC Oral Health 2017; 17:98. [PMID: 28610571 PMCID: PMC5470221 DOI: 10.1186/s12903-017-0388-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 06/07/2017] [Indexed: 12/02/2022] Open
Affiliation(s)
- Eizaburo Kobayashi
- Department of Cranio-Maxillofacial Surgery, University Hospital, University of Bern, Bern, Switzerland.,Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata, Japan
| | - Masako Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, University Hospital, University of Bern, Bern, Switzerland.,Department of Oral Surgery, Clinical Dentistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Vivianne Chappuis
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Daniel Buser
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Benoit Schaller
- Department of Cranio-Maxillofacial Surgery, University Hospital, University of Bern, Bern, Switzerland
| | - Ferenc Dőri
- Department of Periodontology, Semmelweis University, Budapest, Hungary
| | - Richard J Miron
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland. .,Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland. .,Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA. .,Cell Therapy Institute, Center for Collaborative Research, Nova Southeastern University, Fort Lauderdale, FL, USA.
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