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Ozden E, Kaya B, Guler R. Investigation of the Effects of Thymoquinone and Dental Pulp-Derived Mesenchymal Stem Cells on Tibial Bone Defect Models. J Craniofac Surg 2024:00001665-990000000-01602. [PMID: 38758543 DOI: 10.1097/scs.0000000000010323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 04/19/2024] [Indexed: 05/18/2024] Open
Abstract
The thymoquinone obtained from Nigella sativa increases osteoblastic activity and significantly reduces the number of osteoclasts, thereby accelerating bone healing. In addition, mesenchymal stem cells isolated from various tissues are considered a potential cell source for bone regenerative therapies. The aim of this study is to investigate the effectiveness of thymoquinone, a current and novel agent, in combination with mesenchymal stem cells derived from the dental pulp in promoting bone healing. In the study, 28 male Sprague Dawley rats were used. The rats were divided into 4 groups, each consisting of 7 rats: the control group (group 1) (n=7), thymoquinone group (group 2) (n=7), stem cell group (group 3) (n=7), stem cell+thymoquinone group (group 4) (n=7). A bone defect of 4 mm in diameter and 5 mm in length was created in the left tibial bones of all rats with a trephine bur. In group 1, no procedure was applied to the defect area. Group 2 was applied thymoquinone (10 mg/kg) with oral gavage. In group 3, stem cells were used locally to the defect area. In group 4, stem cells and thymoquinone (10 mg/kg) was applied to the defect area. All rats were killed on the 28th day of the experiment. Tibia tissues extracted during sacrifice were histomorphologically examined in a fixative solution. Significant differences were found in terms of new bone formation and osteoblastic activity values in the "thymoquinone" (P<0.05), "stem cell" (P<0.05), and "stem cell+thymoquinone" (P<0.05) groups compared to the "control" group. In addition, while there was no significant difference in the "thymoquinone" group compared to these stem cell+thymoquinone group in terms of osteoblastic activity (P>0.05), the difference in terms of new bone formation was found to be significantly lower. No significant differences among the other groups were observed in new bone formation and osteoblastic activity (P>0.05). According to the results of our study, stem cell+thymoquinone treatment for bone defects is not only more effective than thymoquinone or stem cell treatment alone but also induces greater development of bone trabeculae, contributes to the matrix and connective tissue formation, and increases the number of osteoblasts and osteocytes involved in bone formation.
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Affiliation(s)
- Ersin Ozden
- Department of Oral and Maxillofacial Surgery, Ministry of Health, Oral and Dental Health Hospital, Samsun
| | - Beyza Kaya
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University, Diyarbakir, Turkiye
| | - Ridvan Guler
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University, Diyarbakir, Turkiye
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Guirguis RH, Tan LP, Hicks RM, Hasan A, Duong TD, Hu X, Hng JYS, Hadi MH, Owuama HC, Matthyssen T, McCullough M, Canfora F, Paolini R, Celentano A. In Vitro Cytotoxicity of Antiresorptive and Antiangiogenic Compounds on Oral Tissues Contributing to MRONJ: Systematic Review. Biomolecules 2023; 13:973. [PMID: 37371553 DOI: 10.3390/biom13060973] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/04/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Invasive dental treatment in patients exposed to antiresorptive and antiangiogenic drugs can cause medication-related osteonecrosis of the jaw (MRONJ). Currently, the exact pathogenesis of this disease is unclear. METHODS In March 2022, Medline (Ovid), Embase (Ovid), Scopus, and Web of Science were screened to identify eligible in vitro studies investigating the effects of antiresorptive and antiangiogenic compounds on orally derived cells. RESULTS Fifty-nine articles met the inclusion criteria. Bisphosphonates were used in 57 studies, denosumab in two, and sunitinib and bevacizumab in one. Zoledronate was the most commonly used nitrogen-containing bisphosphonate. The only non-nitrogen-containing bisphosphonate studied was clodronate. The most frequently tested tissues were gingival fibroblasts, oral keratinocytes, and alveolar osteoblasts. These drugs caused a decrease in cell proliferation, viability, and migration. CONCLUSIONS Antiresorptive and antiangiogenic drugs displayed cytotoxic effects in a dose and time-dependent manner. Additional research is required to further elucidate the pathways of MRONJ.
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Affiliation(s)
- Robert H Guirguis
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Leonard P Tan
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Rebecca M Hicks
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Aniqa Hasan
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Tina D Duong
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Xia Hu
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Jordan Y S Hng
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Mohammad H Hadi
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Henry C Owuama
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Tamara Matthyssen
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Michael McCullough
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Federica Canfora
- Department of Neuroscience, Reproductive Sciences and Dentistry, University of Naples Federico II, 80131 Naples, Italy
| | - Rita Paolini
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
| | - Antonio Celentano
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia
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3
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Medication-Related Osteonecrosis of the Jaw: 14 Years’ Retrospective Study on Pathogenetic Trigger Events. J Craniofac Surg 2022; 33:e771-e776. [DOI: 10.1097/scs.0000000000008719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 03/22/2022] [Indexed: 11/26/2022] Open
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4
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Kuroshima S, Al‐Omari FA, Sasaki M, Sawase T. Medication‐related osteonecrosis of the jaw: A literature review and update. Genesis 2022; 60:e23500. [DOI: 10.1002/dvg.23500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 08/12/2022] [Accepted: 08/13/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Shinichiro Kuroshima
- Department of Applied Prosthodontics Graduate School of Biomedical Sciences, Nagasaki University Nagasaki Japan
| | - Farah A. Al‐Omari
- Department of Applied Prosthodontics Graduate School of Biomedical Sciences, Nagasaki University Nagasaki Japan
| | - Muneteru Sasaki
- Department of Applied Prosthodontics Graduate School of Biomedical Sciences, Nagasaki University Nagasaki Japan
| | - Takashi Sawase
- Department of Applied Prosthodontics Graduate School of Biomedical Sciences, Nagasaki University Nagasaki Japan
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Kuo PI, Lin TM, Chang YS, Hou TY, Hsu HC, Lin SH, Chen WS, Lin YC, Wang LH, Chang CC, Chen JH. Primary Sjogren syndrome increases the risk of bisphosphonate-related osteonecrosis of the jaw. Sci Rep 2021; 11:1612. [PMID: 33452297 PMCID: PMC7810724 DOI: 10.1038/s41598-020-80622-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/15/2020] [Indexed: 01/04/2023] Open
Abstract
The risk of bisphosphonate-related osteonecrosis of the jaw (BRONJ) in primary Sjogren syndrome (pSS) has rarely been explored. To explore the association between BRONJ and pSS, we conducted a population-based propensity-score-matched cohort study using Taiwan’s National Health Insurance Research Database, including pSS patients receiving antiosteoporotic therapy and patients without pSS receiving antiosteoporotic therapy. A 1:4 matched-pair cohort based on propensity score was created. The stratified Cox proportional hazards model compared the risk of BRONJ in the pSS and non-pSS groups. In the study, 23,280 pSS patients and 28,712,152 controls were enrolled. After matching, 348 patients with pSS receiving antiosteoporotic drugs and 50,145 without pSS receiving antiosteoporotic drugs were included for analysis. The risk of developing BRONJ was 1.96 times higher in pSS patients compared with non-pSS patients after adjustment for age, sex, and comorbidities. No dose–response effect was observed in the bisphosphonate-treated pSS cohorts, documented as the cumulative defined daily doses of either < 224 or ≥ 224 (hazard ratio [HR]: 2.407, 95% confidence interval [CI] 1.412–7.790; HR: 2.143, 95% CI 1.046–4.393, respectively) increased risk of developing osteonecrosis of the jaw. In conclusion, the risk of BRONJ is significantly higher in patients with pSS compared with the general population.
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Affiliation(s)
- Pei-I Kuo
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, Yonghe Cardinal Tien Hospital, No. 80, Zhongxing St., Yonghe Dist., New Taipei City, 234, Taiwan.,Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Tzu-Min Lin
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan.,Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Sheng Chang
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tsung-Yun Hou
- Division of Rheumatology/Immunology/Allergy, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hui-Ching Hsu
- Division of Rheumatology/Immunology/Allergy, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Sheng-Hong Lin
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Wei-Sheng Chen
- Division of Rheumatology/Immunology/Allergy, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Chun Lin
- Biostatistics Center, College of Management, Taipei Medical University, Taipei, Taiwan
| | - Li-Hsuan Wang
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.,Department of Pharmacy, Taipei Medical University Hospital, Taipei, Taiwan
| | - Chi-Ching Chang
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan. .,Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Jin-Hua Chen
- Biostatistics Center, College of Management, Taipei Medical University, Taipei, Taiwan. .,Graduate Institute of Data Science, College of Management, Taipei Medical University, Taipei, Taiwan.
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6
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He L, Sun X, Liu Z, Qiu Y, Niu Y. Pathogenesis and multidisciplinary management of medication-related osteonecrosis of the jaw. Int J Oral Sci 2020; 12:30. [PMID: 33087699 PMCID: PMC7578793 DOI: 10.1038/s41368-020-00093-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 08/17/2020] [Accepted: 08/18/2020] [Indexed: 12/11/2022] Open
Abstract
Medication-related osteonecrosis of the jaw (MRONJ) is a serious side effect of bone-modifying agents and inhibits angiogenesis agents. Although the pathogenesis of MRONJ is not entirely clear, multiple factors may be involved in specific microenvironments. The TGF-β1 signalling pathway may have a key role in the development of MRONJ. According to the clinical stage, multiple variables should be considered when selecting the most appropriate treatment. Therefore, the prevention and management of treatment of MRONJ should be conducted in patient-centred multidisciplinary team collaborative networks with oncologists, dentists and dental specialists. This would comprise a closed responsibility treatment loop with all benefits directed to the patient. Thus, in the present review, we aimed to summarise the pathogenesis, risk factors, imaging features, clinical staging, therapeutic methods, prevention and treatment strategies associated with MRONJ, which may provide a reference that can inform preventive strategies and improve the quality of life for patients in the future.
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Affiliation(s)
- Lina He
- The First Affiliated Hospital of Harbin Medical University, Harbin, China.,School of Stomatology, Harbin Medical University, Harbin, China
| | - Xiangyu Sun
- The First Affiliated Hospital of Harbin Medical University, Harbin, China.,School of Stomatology, Harbin Medical University, Harbin, China
| | - Zhijie Liu
- The First Affiliated Hospital of Harbin Medical University, Harbin, China.,School of Stomatology, Harbin Medical University, Harbin, China
| | - Yanfen Qiu
- The First Affiliated Hospital of Harbin Medical University, Harbin, China.,School of Stomatology, Harbin Medical University, Harbin, China
| | - Yumei Niu
- The First Affiliated Hospital of Harbin Medical University, Harbin, China. .,School of Stomatology, Harbin Medical University, Harbin, China.
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Wiziack Zago PM, Oliveira Sousa IM, Servat-Medina L, Jorge MP, Lima Neto LG, Hass V, Li X, Tasca Gois Ruiz AL, Saxena D, Foglio MA. Standardized Arrabidaea chica Extract Shows Cytoprotective Effects in Zoledronic Acid-Treated Fibroblasts and Osteoblasts. Clin Cosmet Investig Dent 2020; 12:327-333. [PMID: 32848479 PMCID: PMC7429228 DOI: 10.2147/ccide.s259158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 06/26/2020] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Osteonecrosis of the jaw is a condition associated with intraoral ulceration and bone necrosis induced by antiresorptive medications, such as zoledronic acid, a bisphosphonate. Previous data on Arrabidaea chica (H&B.) Verlot wound healing activity prompted the study reported herein on A. chica standardized hydro alcoholic extract in vitro cytoprotective activity data on epithelial and osteoblastic cells exposed to zoledronic acid (ZA). METHODS Primary human gingival fibroblasts and murine pre-osteoblasts were treated with ZA 10 µM together with 5 or 10 µg.mL-1 A. chica extract for 24h and 48 h. At both times, cells were submitted to viability assay and caspase 3/7 activation evaluation. Statistical analysis used one-way ANOVA and p=0.05. RESULTS In cell viability assay, a drastic damage effect of ZA appeared after 48 h in both epithelial (55.8%) and pre-osteoblastic cells (39.7%). When treated with ZA in combination with A. chica extract, cells showed higher viability values: 74.1%-82.3% for fibroblasts and 66% for pre-osteoblasts. Furthermore, the combined treatment presented lower caspase 3/7 activation in fibroblasts and pre-osteoblasts. CONCLUSION At low concentrations, A. chica extract showed promising cytoprotective effects against ZA-induced damage actions; however, further in vitro and in vivo studies are required to establish the mechanism of action.
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Affiliation(s)
| | | | - Leila Servat-Medina
- Faculty of Pharmaceutical Sciences at University of Campinas, Campinas, São Paulo, Brazil
| | - Michelle Pedroza Jorge
- Faculty of Pharmaceutical Sciences at University of Campinas, Campinas, São Paulo, Brazil
| | | | - Viviane Hass
- School of Dentistry, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Xin Li
- College of Dentistry, New York University, New York, NY, USA
| | | | - Deepak Saxena
- College of Dentistry, New York University, New York, NY, USA
| | - Mary Ann Foglio
- Faculty of Pharmaceutical Sciences at University of Campinas, Campinas, São Paulo, Brazil
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8
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Yuan A, Munz A, Reinert S, Hoefert S. Gingival fibroblasts and medication-related osteonecrosis of the jaw: Results by real-time and wound healing in vitro assays. J Craniomaxillofac Surg 2019; 47:1464-1474. [PMID: 31327558 DOI: 10.1016/j.jcms.2019.06.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/14/2019] [Accepted: 06/02/2019] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE This study investigated the effects of bisphosphonates and denosumab on human gingival fibroblasts (HGFs) that could influence inflammation, wound healing, and angiogenesis in medication-related osteonecrosis of the jaw (MRONJ). METHODS A real-time in vitro assay was performed on HGFs with and without the addition of bacterial lipopolysaccharide and a mononuclear cell co-culture to observe the effects of zoledronate, ibandronate, alendronate, clodronate, denosumab, and combinations of zoledronate and denosumab at varied concentrations. A wound healing assay was performed, and gene and protein expression was analyzed for inflammatory, angiogenic, and osteoclastogenic cytokines and mediators including interleukin (IL)-1β, IL-6, tumor necrosis factor alpha (TNFα), IL-8, vascular endothelial growth factor (VEGF), RANKL, and osteoprotegerin. RESULTS Higher concentrations of antiresorptives resulted in impaired wound healing and HGF death, which also occurred without mechanical damage. These effects were increased with bacterial lipopolysaccharide and mononuclear cells. Increased levels of IL-1β, TNFα, IL-8, VEGF, osteoprotegerin, and decreased levels of IL-6 were observed. CONCLUSIONS Antiresorptive exposure was associated with HGF death and delayed wound healing, which could be attributed to an elevated inflammatory response and immune dysfunction contributing to MRONJ development. There was no evidence of anti-angiogenic effects. Our experiments present the first results of denosumab with HGFs.
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Affiliation(s)
- Anna Yuan
- Department of Oral and Maxillofacial Surgery, University Hospital Tuebingen, Osianderstr 2-8, 72076, Tübingen, Germany.
| | - Adelheid Munz
- Department of Oral and Maxillofacial Surgery, University Hospital Tuebingen, Osianderstr 2-8, 72076, Tübingen, Germany.
| | - Siegmar Reinert
- Department of Oral and Maxillofacial Surgery, University Hospital Tuebingen, Osianderstr 2-8, 72076, Tübingen, Germany.
| | - Sebastian Hoefert
- Department of Oral and Maxillofacial Surgery, University Hospital Tuebingen, Osianderstr 2-8, 72076, Tübingen, Germany.
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Mendes V, Dos Santos GO, Calasans-Maia MD, Granjeiro JM, Moraschini V. Impact of bisphosphonate therapy on dental implant outcomes: An overview of systematic review evidence. Int J Oral Maxillofac Surg 2019; 48:373-381. [PMID: 30314708 DOI: 10.1016/j.ijom.2018.09.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 09/15/2018] [Accepted: 09/21/2018] [Indexed: 10/28/2022]
Abstract
The purpose of this overview was to assess the methods, quality, and outcomes of systematic reviews conducted to evaluate the impact of bisphosphonates on dental implants and the risk of developing bisphosphonate-related osteonecrosis of the jaw after dental implant surgery. An electronic search without date or language restriction was performed in the PubMed/MEDLINE, Cochrane CENTRAL, Web of Science, and LILACS databases (to January 2018). Eligibility criteria included systematic reviews that evaluated the impact of bisphosphonates on implant outcomes. The quality assessment of the included reviews was done using AMSTAR 2 guidelines. The protocol of this overview was registered in PROSPERO (CRD42018089617). The search and selection process yielded seven reviews, published between 2009 and 2017. None of the systematic reviews included in this study obtained the maximum score in the quality assessment. The scientific evidence available demonstrates that patients with a history of bisphosphonate use do not present a higher risk of dental implant failure or marginal bone loss compared to patients who have not used bisphosphonates. The literature also suggests that patients who undergo surgical trauma during the installation of dental implants may be more susceptible to bisphosphonate-related osteonecrosis of the jaw.
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Affiliation(s)
- V Mendes
- Department of Integrated Clinics, School of Dentistry, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
| | - G O Dos Santos
- Department of Integrated Clinics, School of Dentistry, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
| | - M D Calasans-Maia
- Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
| | - J M Granjeiro
- National Institute of Metrology, Quality and Technology, Rio de Janeiro, Brazil; Cell Therapy Centre, Clinical Research Unit and Department of Dental Techniques, School of Dentistry, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
| | - V Moraschini
- Department of Periodontology, School of Dentistry, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.
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Statkievicz C, Toro LF, de Mello-Neto JM, de Sá DP, Casatti CA, Issa JPM, Cintra LTA, de Almeida JM, Nagata MJH, Garcia VG, Theodoro LH, Ervolino E. Photomodulation multiple sessions as a promising preventive therapy for medication-related osteonecrosis of the jaws after tooth extraction in rats. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 184:7-17. [DOI: 10.1016/j.jphotobiol.2018.05.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 03/12/2018] [Accepted: 05/03/2018] [Indexed: 12/16/2022]
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Açil Y, Arndt ML, Gülses A, Wieker H, Naujokat H, Ayna M, Wiltfang J. Cytotoxic and inflammatory effects of alendronate and zolendronate on human osteoblasts, gingival fibroblasts and osteosarcoma cells. J Craniomaxillofac Surg 2018; 46:538-546. [DOI: 10.1016/j.jcms.2017.12.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 11/03/2017] [Accepted: 12/15/2017] [Indexed: 02/02/2023] Open
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12
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Chondrocytes Contribute to Alphaviral Disease Pathogenesis as a Source of Virus Replication and Soluble Factor Production. Viruses 2018; 10:v10020086. [PMID: 29462879 PMCID: PMC5850393 DOI: 10.3390/v10020086] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 02/12/2018] [Accepted: 02/13/2018] [Indexed: 12/03/2022] Open
Abstract
Arthritogenic alphavirus infections often result in debilitating musculoskeletal disorders that affect the joints, muscle, and bone. In order to evaluate the infection profile of primary human skeletal muscle and chondrocyte cells to Ross River virus (RRV) in vitro, cells were infected at a multiplicity of infection (MOI) of 1 over a period of two days. Viral titers were determined by plaque assay and cytokine expression by Bio-Plex® assays using the supernatants harvested. Gene expression studies were conducted using total RNA isolated from cells. Firstly, we show that RRV RNA is detected in chondrocytes from infected mice in vivo. Both human primary skeletal muscle and chondrocyte cells are able to support productive RRV infection in vitro. We also report the production of soluble host factors including the upregulation of heparanase (HPSE) and inflammatory host factors such as interleukin-6 (IL-6), monocyte chemoattractant protein 1 (MCP-1), RANTES (regulated on activation, normal T cell expressed and secreted), interferon gamma (IFN-γ), and tumor necrosis factor alpha (TNF-α), which are also present during clinical disease in humans. Our study is the first to demonstrate that human chondrocyte cells are permissive to RRV infection, support the production of infectious virus, and produce soluble factors including HPSE, which may contribute to joint degradation and the pathogenesis of disease.
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13
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Akdeniz SS, Beyler E, Korkmaz Y, Yurtcu E, Ates U, Araz K, Sahin FI, Torun OY. The effects of ozone application on genotoxic damage and wound healing in bisphosphonate-applied human gingival fibroblast cells. Clin Oral Investig 2017; 22:867-873. [PMID: 28699091 DOI: 10.1007/s00784-017-2163-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 06/23/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVES Medication-related osteonecrosis of the jaws (MRONJ) is an extremely therapy-resistant disease involving the jaws especially following bisphosphonate treatment. Bisphosphonates accumulate in bone in concentrations sufficient to be directly toxic to the oral epithelium. Current therapeutic options are inadequate for the prevention and treatment of MRONJ. The aim of this study was to investigate effects of ozone gas plasma therapy on wound healing in bisphosphonate-applied human fibroblasts. MATERIAL AND METHODS Human primary gingival fibroblasts were cultured. Cytotoxic concentrations (IC50) of bisphosphonates (pamidronate (PAM), alendronate (ALN), and zoledronate (ZOL)) were determined by MTT test. A 60 μg/μl for 30 s of ozone gas plasma application was performed to all experimental culture flasks after drug treatment at 24-h intervals as 3 s/cm2. Genotoxic damages were evaluated by comet assay and wound healing was determined by in vitro scratch assay. RESULTS PAM, ALN, and ZOL applications caused genotoxic damage on primary human gingival fibroblast DNA. Ozone gas plasma therapy significantly decreased the genotoxic damage (p < 0.05), and this application provided 25, 29, and 27% less genotoxic damage in order of ALN, PAM, and ZOL groups. Ozone gas plasma therapy significantly increased wound healing rates both in postsurgical 24th and 48th hours for all doses of experimental drug groups (p < 0.05). CONCLUSION The ozone gas plasma application decreased genotoxic damage effect of bisphosphonate usage while improved the wound closure rate on human gingival fibroblasts. CLINICAL RELEVANCE Ozone gas plasma therapy may be helpful in prevention of gingival healing delay in MRONJ pathogenesis especially when applied simultaneously with surgical intervention.
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Affiliation(s)
- Sıdıka Sinem Akdeniz
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Baskent University, Bahçelievler 11. Sokak no:26 Mareşal Fevzi Çakmak Caddesi Çankaya, 06490, Ankara, Turkey.
| | - E Beyler
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Baskent University, Bahçelievler 11. Sokak no:26 Mareşal Fevzi Çakmak Caddesi Çankaya, 06490, Ankara, Turkey
| | - Y Korkmaz
- Department of Medical Biology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - E Yurtcu
- Department of Medical Biology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - U Ates
- Private Practice, Ankara, Turkey
| | - K Araz
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Baskent University, Bahçelievler 11. Sokak no:26 Mareşal Fevzi Çakmak Caddesi Çankaya, 06490, Ankara, Turkey
| | - F I Sahin
- Department of Medical Genetics, Faculty of Medicine, Baskent University, Ankara, Turkey
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Influence of bisphosphonates on the adherence and metabolism of epithelial cells and gingival fibroblasts to titanium surfaces. Clin Oral Investig 2017; 22:893-900. [PMID: 28688093 DOI: 10.1007/s00784-017-2167-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 06/23/2017] [Indexed: 01/30/2023]
Abstract
OBJECTIVES To evaluate the effects of sodium alendronate (SA) and zoledronic acid (ZA), on the adhesion and metabolism of epithelial cells and gingival fibroblasts to titanium surfaces considering cell functions related to an effective mucosal barrier around the implant. MATERIALS AND METHODS Cells were seeded onto titanium discs and incubated for 24 h. Then, serum-free DMEM containing selected bisphosphonates (0, 0.5, 1, or 5 μM) was added for 24 and 48 h. Factors related to the achievement of an effective mechanical and immunological barrier-cell adhesion, viability, collagen epidermal growth factor, and immunoglobulin synthesis-were evaluated. Data were analyzed by Kruskal-Wallis and Mann-Whitney tests as well as by ANOVA and Tukey's tests, (α = 0.05). RESULTS The presence of bisphosphonates culminated in lower cell adhesion to the titanium discs, particularly for SA at 5 μM (40%) and ZA at all concentrations (from 30 to 50%, according to increased concentrations). Reduced cell viability occurred after exposing these cells to ZA (40%); however, only 5 μM SA-treated cells had decreased viability (30%). Reduced synthesis of growth factors and collagen was observed when cells were reated with ZA (20 and 40%, respectively), while about 70% of IgG synthesis was enhanced. CONCLUSION Bisphosphonates negatively affected the adhesion and metabolism of oral mucosal cells, and this effect was related to the type of bisphosphonate as well as to concentration and period of treatment. CLINICAL RELEVANCE The negative effects of bisphosphonates on oral mucosal cells can hamper the formation of an effective biological seal in osseointegrated implants.
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Chiquet M, Katsaros C, Kletsas D. Multiple functions of gingival and mucoperiosteal fibroblasts in oral wound healing and repair. Periodontol 2000 2017; 68:21-40. [PMID: 25867977 DOI: 10.1111/prd.12076] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2014] [Indexed: 12/22/2022]
Abstract
Fibroblasts are cells of mesenchymal origin. They are responsible for the production of most extracellular matrix in connective tissues and are essential for wound healing and repair. In recent years, it has become clear that fibroblasts from different tissues have various distinct traits. Moreover, wounds in the oral cavity heal under very special environmental conditions compared with skin wounds. Here, we reviewed the current literature on the various interconnected functions of gingival and mucoperiosteal fibroblasts during the repair of oral wounds. The MEDLINE database was searched with the following terms: (gingival OR mucoperiosteal) AND fibroblast AND (wound healing OR repair). The data gathered were used to compare oral fibroblasts with fibroblasts from other tissues in terms of their regulation and function during wound healing. Specifically, we sought answers to the following questions: (i) what is the role of oral fibroblasts in the inflammatory response in acute wounds; (ii) how do growth factors control the function of oral fibroblasts during wound healing; (iii) how do oral fibroblasts produce, remodel and interact with extracellular matrix in healing wounds; (iv) how do oral fibroblasts respond to mechanical stress; and (v) how does aging affect the fetal-like responses and functions of oral fibroblasts? The current state of research indicates that oral fibroblasts possess unique characteristics and tightly controlled specific functions in wound healing and repair. This information is essential for developing new strategies to control the intraoral wound-healing processes of the individual patient.
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Abstract
OBJECTIVE Due to accumulation in the bone matrix and a half-life of at least 10 years, it is important to understand the cellular impact of bisphosphonates (BPs). This study assessed the effects of alendronate (ALN) on human primary osteoblasts. MATERIAL AND METHODS Osteoblasts were incubated with ALN (5, 20 and 100 μM), and both cells and cell culture media were harvested after d 1, 3, 7 or 14. Proliferation was evaluated by 3H-thymidine incorporation and tetrazolium dye (MTT) colorimetric assay, and viability by the lactate dehydrogenase (LDH) activity in the medium. Differentiation was evaluated using protein Luminex multiplex assays and RT-PCR. RESULTS ALN had no significant effects on cell viability. The lower concentrations enhanced the proliferation, whereas 100 μM diminished the proliferation. mRNA expression of osteocalcin (OC), alkaline phosphatase (ALP) and α-1 type 1 collagen were reduced, whereas ALN enhanced the expression of leptin mRNA and the secretion of interleukin-8 (IL-8) and regulated on activation normal T cell expressed and secreted (RANTES). CONCLUSIONS ALN enhanced the secretion of immune factors from human osteoblasts. Combined with a lower rate of proliferation and a decline in differentiation, this indicates that higher dosages or accumulation may cause undesirable local changes in bone.
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Abe T, Sato T, Kokabu S, Hori N, Shimamura Y, Sato T, Yoda T. Zoledronic acid increases the circulating soluble RANKL level in mice, with a further increase in lymphocyte-derived soluble RANKL in zoledronic acid- and glucocorticoid-treated mice stimulated with bacterial lipopolysaccharide. Cytokine 2016; 83:1-7. [PMID: 26999703 DOI: 10.1016/j.cyto.2016.03.012] [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] [Received: 09/12/2015] [Revised: 03/10/2016] [Accepted: 03/15/2016] [Indexed: 01/06/2023]
Abstract
The nitrogen-containing bisphosphonate (BP) zoledronic acid (ZA) is a potent antiresorptive drug used in conjunction with standard cancer therapy to treat osteolysis or hypercalcemia due to malignancy. However, it is unclear how ZA influences the circulating levels of bone remodeling factors. The aim of this study was to evaluate the effects of ZA on the serum levels of soluble receptor activator of NF-kB ligand (sRANKL) and osteoprotegerin (OPG). The following four groups of C57BL/6 mice were used (five mice per group): (1) the placebo+phosphate-buffered saline (PBS) group, in which placebo-treated mice were injected once weekly with PBS for 4weeks; (2) the placebo+ZA group, in which placebo-treated mice were injected once weekly with ZA for 4weeks; (3) the prednisolone (PSL)+PBS group, in which PSL-treated mice were injected once weekly with PBS for 4weeks; and (4) the PSL+ZA group, in which PSL-treated mice were injected once weekly with ZA for 4weeks. At the 3-week time point, all mice were subjected to oral inflammatory stimulation with bacterial lipopolysaccharide (LPS). The sera of these mice were obtained every week and the levels of sRANKL and OPG were measured using enzyme-linked immunosorbent assay. At the time of sacrifice, femurs were prepared for micro-computed tomography (micro-CT), histological, and histomorphometric analyses. Our data indicated that ZA administration remarkably reduced bone turnover and significantly increased the basal level of sRANKL. Interestingly, the PSL+ZA group showed a dramatically elevated sRANKL level after LPS stimulation. In contrast, the PSL+ZA group in nonobese diabetic mice with severe combined immunodeficiency disease (NOD-SCID mice), which are characterized by the absence of functional T- and B-lymphocytes, showed no increase in the sRANKL level. Our data suggest that, particularly with combination treatment of ZA and glucocorticoids, surviving lymphocytes might be the source of inflammation-induced sRANKL. Thus, circulating sRANKL levels might be modulated by ZA.
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Affiliation(s)
- Takahiro Abe
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Saitama Medical University, Japan; Department of Oral and Maxillofacial Surgery, The University of Tokyo, Japan.
| | - Tsuyoshi Sato
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Saitama Medical University, Japan
| | - Shoichiro Kokabu
- Department of Molecular Signaling & Biochemistry, Kyushu Dental College, Japan
| | - Naoko Hori
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Saitama Medical University, Japan
| | - Yumiko Shimamura
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Saitama Medical University, Japan
| | - Tomoya Sato
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine, Saitama Medical University, Japan
| | - Tetsuya Yoda
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Saitama Medical University, Japan
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Basso FG, Pansani TN, de Oliveira CF, Turrioni APS, Soares DG, Hebling J, Costa CADS. Cytotoxic effects of zoledronic acid on human epithelial cells and gingival fibroblasts. Braz Dent J 2015; 24:551-8. [PMID: 24474348 DOI: 10.1590/0103-6440201302229] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 12/12/2013] [Indexed: 11/21/2022] Open
Abstract
Bisphosphonate-induced osteonecrosis has been related to the cytotoxicity of these drugs on oral mucosa cells. A previous study showed that 5 µM of zoledronic acid (ZA), a nitrogen-containing bisphosphonate, is the highest concentration of this drug found in the oral cavity of patients under treatment. Therefore, in order to simulate an osteonecrosis clinical condition, the aim of this study was to evaluate the highest concentration of ZA applied on human epithelial cells (HaCaT) and gingival fibroblasts. For this purpose, cells (3 × 10(4) cells/cm2) were seeded in wells for 48 h using complete culture medium (cDMEM). After 48 h incubation, the cDMEM was replaced by fresh serum-free culture medium (DMEM-FBS) in which the cells were maintained for additional 24 h. Then, 5 µM ZA were added to the DMEM-FBS and the cells incubated in contact with the drug for 48 h. After this period, the number of viable cells (trypan blue), cell viability (MTT assay), total protein (TP) production and cell morphology (SEM analysis) were assessed. Data were analyzed statistically by Mann-Whitney, ANOVA and Tukey's test (α=0.05). ZA caused a significant reduction in the number of viable cells and decreased the metabolic activity of both cell lines. However, decrease of TP production occurred only in the epithelial cell cultures. Morphological alterations were observed in both cell types treated with ZA. In conclusion, ZA (5 µM) was cytotoxic to human epithelial cells and gingival fibroblast cultures, which could be associated, clinically, with the development of bisphosphonate-induced osteonecrosis.
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Affiliation(s)
| | | | - Camila Fávero de Oliveira
- Laboratory of Genetics, Butantan Institute/Departament of Morphology of UNIFESP - Federal University of São Paulo, São PauloSP, Brazil
| | | | - Diana Gabriela Soares
- UNESP - Univ Estadual Paulista, Araraquara School of Dentistry, AraraquaraSP, Brazil
| | - Josimeri Hebling
- UNESP - Univ Estadual Paulista, Araraquara School of Dentistry, AraraquaraSP, Brazil
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The osteogenic activity of human mandibular fracture haematoma-derived progenitor cells is affected by bisphosphonate in vitro. Int J Oral Maxillofac Surg 2015; 44:412-6. [DOI: 10.1016/j.ijom.2014.10.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 10/21/2014] [Accepted: 10/23/2014] [Indexed: 11/20/2022]
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Soydan SS, Araz K, Senel FV, Yurtcu E, Helvacioglu F, Dagdeviren A, Tekindal MA, Sahin F. Effects of alendronate and pamidronate on apoptosis and cell proliferation in cultured primary human gingival fibroblasts. Hum Exp Toxicol 2015; 34:1073-82. [PMID: 25636638 DOI: 10.1177/0960327115569808] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Data arising from the recent literature directed the researchers to study on the degree and extent of bisphosphonate toxicity on oral mucosa in further detail. The aim of this study is to determine the half maximal inhibitory concentration of pamidronate (PAM) and alendronate (ALN) on human gingival fibroblasts in vitro using 3-[4.5-thiazol-2-yl]-2.5-diphenyltetrazolium bromide (MTT) assay and to evaluate the effects of both agents on the proliferation and apoptotic indices. Cells used in the study were generated from human gingival specimens and divided into alendronate (n = 240), PAM (n = 240), and control groups (n = 60). Based on the MTT assay results, 10(-4), 10(-5), 10(-6), and 10(-7) M concentrations of both drugs were administered and the effects were evaluated for 6, 12, 24, 48, or 72 h periods. An indirect immunofluorescence technique was used to evaluate apoptotic (anti-caspase 3) and proliferation (anti-Ki67) indices. Toxicity of both PAM and ALN was found to be the most potent at 10(-4)-10(-5) M range. The apoptotic index of PAM group was found to be significantly higher than ALN group for all concentrations especially at 24 h incubation time (p < 0.05). The decrease in the proliferation index was found similar in first 48 h for both drugs; however, after 72 h of incubation decrease in proliferation index in PAM group was found to be significantly higher (p < 0.05). Micromolar concentrations of not only PAM but also ALN rapidly affect cells generated from human oral gingival tissue by inducing apoptosis together with inhibition of proliferation. Cytotoxic effects of both ALN and PAM on primary human gingival fibroblasts, which cause significant changes in apoptotic and proliferative indices as shown in this in vitro study, suggests that the defective epithelialization of oral mucosa is possibly a major factor on the onset of bisphosphonate-related osteonecrosis of the jaw cases.
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Affiliation(s)
- S S Soydan
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Baskent University, Ankara, Turkey
| | - K Araz
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Baskent University, Ankara, Turkey
| | - F V Senel
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Recep Tayyip Erdogan University, Rize, Turkey
| | - E Yurtcu
- Department of Medical Biology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - F Helvacioglu
- Department of Histology and Embryology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - A Dagdeviren
- Department of Histology and Embryology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - M A Tekindal
- Department of Biostatistics, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - F Sahin
- Department of Medical Genetics, Faculty of Medicine, Baskent University, Ankara, Turkey
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Rizzo A, Misso G, Bevilacqua N, Donnarumma G, Lombardi A, Galdiero M, Caraglia M. Zoledronic acid affects the cytotoxic effects of Chlamydia pneumoniae and the modulation of cytokine production in human osteosarcoma cells. Int Immunopharmacol 2014; 22:66-72. [DOI: 10.1016/j.intimp.2014.06.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Revised: 05/24/2014] [Accepted: 06/10/2014] [Indexed: 01/18/2023]
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Zara S, De Colli M, di Giacomo V, Zizzari VL, Di Nisio C, Di Tore U, Salini V, Gallorini M, Tetè S, Cataldi A. Zoledronic acid at subtoxic dose extends osteoblastic stage span of primary human osteoblasts. Clin Oral Investig 2014; 19:601-11. [PMID: 25055744 DOI: 10.1007/s00784-014-1280-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 07/10/2014] [Indexed: 12/19/2022]
Abstract
OBJECTIVE This study aimed to check the effect of zoledronic acid (ZA) at subtoxic dose on human osteoblasts (HOs) in terms of cell viability, apoptosis occurrence, and differentiation induction. ZA belongs to the family of bisphosphonates (BPs), largely used in the clinical practice for the treatment of bone diseases, often associated with jaw osteonecrosis onset. Their pharmacological action consists in the direct block of the osteoclast-mediated bone resorption along with indirect action on osteoblasts. MATERIALS AND METHODS HOs were treated choosing the highest limit concentration (10(-5) M) which does not induce toxic effects. Live/dead staining, flow cytometry, mitochondrial membrane potential assay, osteocalcin western blotting, gp38 RT-PCR, collagen type I, PGE2, and IL-6 ELISA assays were performed. RESULTS Similar viability level between control and ZA-treated samples is found along with no significant increase of apoptotic and necrotic cells in ZA-treated sample. To establish if an early apoptotic pathway was triggered, Bax expression and mitochondrial membrane potential were evaluated finding a higher protein expression in control sample and a good integrity of mitochondrial membrane in both experimental points. Type I collagen secretion and alkaline phosphatase (ALP) activity appear increased in ZA-treated sample, osteocalcin expression level is reduced in ZA-treated cells, whereas no modifications of gp38 mRNA level are evidenced. No statistical differences are identified in PGE2 secretion level whereas IL-6 secretion is lower in ZA-treated HOs with respect to control ones. CONCLUSIONS These results highlight that ZA, delaying the osteoblastic differentiation process versus the osteocytic lineage, strengthens its pharmacological activity enhancing bone density. CLINICAL RELEVANCE The knowledge of ZA effects on osteoblasts at subtoxic dose allows to improve therapeutic protocols in order to strengthen drug pharmacological activity through a combined action on both osteoclastic and osteoblastic cells.
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Affiliation(s)
- Susi Zara
- Section of Human Anatomy, Department of Pharmacy, University "G. d'Annunzio" Chieti-Pescara, Via dei Vestini 31, 66100, Chieti, Italy,
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Hasegawa T, Ri S, Umeda M, Komatsubara H, Kobayashi M, Shigeta T, Yoshitomi I, Ikeda H, Shibuya Y, Asahina I, Komori T. The observational study of delayed wound healing after tooth extraction in patients receiving oral bisphosphonate therapy. J Craniomaxillofac Surg 2013; 41:558-63. [DOI: 10.1016/j.jcms.2012.11.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Revised: 11/16/2012] [Accepted: 11/16/2012] [Indexed: 11/29/2022] Open
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Basso FG, Silveira Turrioni AP, Hebling J, de Souza Costa CA. Zoledronic acid inhibits human osteoblast activities. Gerontology 2013; 59:534-41. [PMID: 23867757 DOI: 10.1159/000351194] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 04/03/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Bisphosphonates are potent inhibitors of bone resorption. These kinds of drugs, which are used for the treatment of osteolytic diseases, have been associated with the occurrence of oral osteonecrosis, especially in patients over 60 years old. Current studies have demonstrated that the cytotoxic effects of bisphosphonates on osteoblasts play an important role in oral osteonecrosis development. OBJECTIVE The aim of this study was to evaluate the effect of long-term application of a highly potent bisphosphonate - zoledronic acid (ZA) - on human osteoblasts in vitro. METHODS Human osteoblasts (MG63 cell line) were seeded for 72 h in wells of 24-well plates. The Dulbecco's modified Eagle's medium (DMEM) was then replaced by culture medium without fetal bovine serum (FBS), and the cells were incubated for an additional 24 h, after which ZA was added to the DMEM without FBS and incubated in contact with osteoblasts for 7, 14 or 21 days. Cell viability (CV), total protein production (TPP), alkaline phosphatase (ALP) activity, mineral nodule formation (MNF), and gene expression of ALP and osteocalcin (OCN), as well as cell morphology by scanning electronic microscopy, were evaluated. Data were statistically analyzed by Kruskal-Wallis and Mann-Whitney tests, with a significance level of 5%. RESULTS The cytotoxic effects of ZA on osteoblasts were characterized by reduction of CV, TPP, ALP and MNF production. In addition, ZA MNF caused a decrease in gene expression of ALP and OCN, as well as intense cell morphology alterations. All these negative effects of ZA were concentration and period dependent. CONCLUSION Both concentrations of ZA (1 and 5 μM) caused cytotoxic effects to osteoblasts which reduced the production and expression of proteins that play an important role in bone matrix synthesis and mineralization.
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Affiliation(s)
- Fernanda G Basso
- Piracicaba School of Dentistry, UNICAMP - Universidade de Campinas, Piracicaba, Araraquara, Brazil
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Basso F, Turrioni A, Hebling J, de Souza Costa C. Effects of zoledronic acid on odontoblast-like cells. Arch Oral Biol 2013; 58:467-73. [DOI: 10.1016/j.archoralbio.2012.09.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 07/11/2012] [Accepted: 09/27/2012] [Indexed: 11/30/2022]
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Jacobs C, Grimm S, Ziebart T, Walter C, Wehrbein H. Osteogenic differentiation of periodontal fibroblasts is dependent on the strength of mechanical strain. Arch Oral Biol 2013; 58:896-904. [PMID: 23422327 DOI: 10.1016/j.archoralbio.2013.01.009] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 01/15/2013] [Accepted: 01/19/2013] [Indexed: 01/22/2023]
Abstract
OBJECTIVE During orthodontic therapy the correct strength of mechanical strain plays a key role for bone remodelling during tooth movement. Aim of this study was to investigate the osteogenic differentiation of human periodontal ligament fibroblasts (HPdLF) depending on the applied strength of mechanical strain compared to osteoblasts (HOB). DESIGN HPdLF and HOB were loaded with different strengths (1%, 5% and 10%) of static mechanical strain (SMS) for 12h in vitro. Viability was verified by MTT and apoptosis by TUNEL assay. Gene expression of cyclin D1, collagen type-1 (COL-I), alkaline phosphatase (ALP), osteocalcin, osteoprotegerin (OPG) and receptor activator of the NF-κB ligand (RANKL) were investigated using RT-PCR. OPG and RANKL synthesis was measured by ELISA and ALP activity by colorimetric assay. RESULTS 10% of SMS led to a decrease in cell viability of both cells lines, but no increased rate of apoptosis. RT-PCR showed the highest increase of cyclin D1 expression for HPdLF and HOB when applied to 5% of SMS, and HOB showed a doubling of COL-I gene expression. HPdLF and HOB showed a strength-dependent synthesis of OPG and ALP activity, whereas HOB demonstrated a decrease in OPG synthesis and ALP activity when applied to 10% of SMS. CONCLUSION Osteogenic differentiation of HPdLF correlates with increasing strength of SMS. HOB show decreased activity when applied to high SMS, demonstrating potential damage to the bone remodelling due to strain of high strength. SMS up to 5% provides the best conditions for bone formation at the tension site of tooth movement.
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Affiliation(s)
- Collin Jacobs
- Department of Orthodontics, University Medical Center of the Johannes Gutenberg-University Mainz, Augustusplatz 2, 55131 Mainz, Germany.
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Effect of low level laser therapy and zoledronate on the viability and ALP activity of Saos-2 cells. Int J Oral Maxillofac Surg 2013; 42:140-6. [DOI: 10.1016/j.ijom.2012.03.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Revised: 01/27/2012] [Accepted: 03/29/2012] [Indexed: 01/22/2023]
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Major histocompatibility complex class II polymorphisms are associated with the development of anti-resorptive agent-induced osteonecrosis of the jaw. J Craniomaxillofac Surg 2013; 41:71-5. [DOI: 10.1016/j.jcms.2012.10.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 10/14/2012] [Accepted: 10/26/2012] [Indexed: 11/21/2022] Open
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Bulmanski Z, Brady M, Stoute D, Lallier TE. Cigarette smoke extract induces select matrix metalloproteinases and integrin expression in periodontal ligament fibroblasts. J Periodontol 2012; 83:787-96. [PMID: 22122519 DOI: 10.1902/jop.2011.110395] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND The periodontal ligament (PDL) is the connective tissue that anchors the cementum of the teeth to the alveolar bone. PDL fibroblasts are responsible for the production of collagen and remodeling of the PDL. Periodontal disease is increased among smokers in both incidence and severity. This study examines the direct effect of smoking on PDL fibroblasts and their production of various matrix components and remodeling enzymes. METHODS PDL cells were plated for 1 day and then treated with various concentrations of cigarette smoke extract (CSE). Survival of PDL cells was quantified after exposure to CSE, and their ability to contract three-dimensional collagen gels was examined. Changes in transcript expression after CSE treatment was compared using reverse transcription-polymerase chain reaction analysis for matrix metalloproteinases (MMPs), collagens, and integrins. RESULTS Treatment with CSE-induced cell death at concentrations of ≥5%. PDL-cell-induced collagen gel contraction was reduced at concentrations of 1.5% CSE. Treatment with CSE selectively increased the expression of collagen Vα3 and decreased collagen XIα1. CSE increased the expression of MMP1 and MMP3 and, to a lesser extent, MMP2 and MMP8. CSE also increased the expression of integrins α1, α2, and α10 (collagen receptors) and α9 (a tenascin receptor). CONCLUSIONS This study shows that cigarette smoking has local effects on the cells of the PDL. CSE reduced survival of PDL cells and their ability to contract collagen matrices. CSE also altered the expression of molecules known to provide the structural integrity of the ligament by altering collagen synthesis and remodeling as well as cell adhesion.
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Affiliation(s)
- Zachary Bulmanski
- Department of Oral Biology, Center of Excellence in Oral and Craniofacial Biology, Louisiana State University Health Sciences Center, School of Dentistry, 1100 Florida Ave., New Orleans, LA 70119, USA
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Draenert GF, Huetzen DO, Kämmerer PW, Palarie V, Nacu V, Wagner W. Dexrazoxane shows cytoprotective effects in zoledronic acid-treated human cells in vitro and in the rabbit tibia model in vivo. J Craniomaxillofac Surg 2012; 40:e369-74. [PMID: 22429609 DOI: 10.1016/j.jcms.2012.01.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 01/30/2012] [Accepted: 01/31/2012] [Indexed: 01/23/2023] Open
Abstract
INTRODUCTION Bisphosphonates are important and effective drugs in oncology and osteoporosis therapy. They accumulate in the bone matrix becoming released and active by bone resorption. This leads to effective inhibition of tumor cells and bone degradation. A side effect of bisphosphonates similar to other drugs like denosumab is osteonecrosis of the jaws (ONJ). This problem mostly occurs after tooth extraction. We studied the cytoprotectant dexrazoxane known from anthracycline chemotherapy for cytoprotection in nitrogen-containing bisphosphonate treated cells and in the rabbit tibia model to evaluate a possible value in ONJ management. MATERIALS & METHODS Human osteoblasts (HOB) P2 cells and Human ginigiva fibroblasts (HGF) P2 cells were treated with zoledronic acid (50 μmol/L) and the cytoprotectant dexrazoxane (600 μmol/L). Analysis included cell viability testing with MTT assay and morphology analysis using CellTracker™ Green CMFDA. A biomaterial carrier (Bio-Oss Collagen) was implanted in the rabbit tibia of 6 female chinchilla bastard rabbits on both sides with drill hole defects (d: 3.2mm). Implants were loaded with 25 nmol zoledronic acid, with and without 300 nmol dexrazoxane and unloaded in a control group. Analysis included histological examination of undecalcified samples with toloudine blue staining after 10 days. RESULTS In vitro experiments showed a significantly higher MTT activity in cells treated with zoledronic acid together with dexrazoxane compared to the same cells treated with the bisphosphonate alone in t-test (HOB: p=0.0003; HGF: p below 0.0001) and one-way ANOVA. Cell morphology changes were consistent with these results. In vivo results showed newly formed bone trabeculae directly growing towards the implanted hydroxylapatite particles and cortical bone interface resorption activities in the control and the experimental group only. CONCLUSION The study suggests a possible value of this patented technology for ONJ therapy and prevention with local or systemic application.
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Affiliation(s)
- G F Draenert
- Clinic for Maxillofacial Surgery, University of Marburg, Georg-Voigt-Str. 3, 35039 Marburg, Germany.
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Nicoletti P, Cartsos VM, Palaska PK, Shen Y, Floratos A, Zavras AI. Genomewide pharmacogenetics of bisphosphonate-induced osteonecrosis of the jaw: the role of RBMS3. Oncologist 2012; 17:279-87. [PMID: 22267851 PMCID: PMC3286178 DOI: 10.1634/theoncologist.2011-0202] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Accepted: 09/21/2011] [Indexed: 11/17/2022] Open
Abstract
UNLABELLED Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is a serious adverse drug reaction. We conducted a genomewide association study to search for genetic variants with a large effect size that increase the risk for BRONJ. METHODS We ascertained BRONJ cases according to the diagnostic criteria of the American Association of Oral and Maxillofacial Surgeons. We genotyped cases and a set of treatment-matched controls using Illumina Human Omni Express 12v1 chip (733,202 markers). To maximize the power of the study, we expanded the initial control set by including population and treatment-tolerant controls from publicly available sources. Imputation at the whole-genome level was performed to increase the number of single nucleotide polymorphisms (SNPs) investigated. Tests of association were carried out by logistic regression, adjusting for population structure. We also examined a list of candidate genes comprising genes potentially involved in the pathogenesis of BRONJ and genes related to drug absorption, distribution, metabolism, and excretion. RESULTS Based on principal component analysis, we initially analyzed 30 white cases and 17 treatment-tolerant controls. We subsequently expanded the control set to include 60 genetically matched controls per case. Association testing identified a significant marker in the RBMS3 gene, rs17024608 (p-value < 7 × 10(-8)); individuals positive for the SNP were 5.8× more likely to develop BRONJ (odds ratio, 5.8; 95% confidence interval, 3.1-11.1). Candidate gene analysis further identified SNPs in IGFBP7 and ABCC4 as potentially implicated in BRONJ risk. CONCLUSION Our findings suggest that genetic susceptibility plays a role in the pathophysiology of BRONJ, with RBMS3 having a significant effect in the risk.
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Affiliation(s)
| | - Vassiliki M. Cartsos
- Department of Orthodontics, Tufts School of Dental Medicine, Boston, Massachusetts, USA
| | - Penelope K. Palaska
- Department of Orthodontics, Tufts School of Dental Medicine, Boston, Massachusetts, USA
| | - Yufeng Shen
- Center for Computational Biology and Bioinformatics
- Department of Biomedical Informatics, and
| | - Aris Floratos
- Center for Computational Biology and Bioinformatics
- Department of Biomedical Informatics, and
| | - Athanasios I. Zavras
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York, USA
- Division of Oral Epidemiology & Biostatistics, Columbia College of Dental Medicine, New York, New York, USA
- Department of Epidemiology, Mailman School of Public Health, New York, New York, USA
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Açil Y, Möller B, Niehoff P, Rachko K, Gassling V, Wiltfang J, Simon MJK. The cytotoxic effects of three different bisphosphonates in-vitro on human gingival fibroblasts, osteoblasts and osteogenic sarcoma cells. J Craniomaxillofac Surg 2011; 40:e229-35. [PMID: 22082730 DOI: 10.1016/j.jcms.2011.10.024] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 10/07/2011] [Accepted: 10/10/2011] [Indexed: 10/15/2022] Open
Abstract
INTRODUCTION Osteonecrosis of the jaw (ONJ) is an emerging condition in patients undergoing long-term administration of bisphosphonates (BP) for the treatment of osteoporosis and hypercalcaemia associated with malignancy, multiple myeloma, and metastatic breast and prostate cancers. This is a follow-up study, its purpose was to examine the effects in-vitro of intravenous zoledronic acid (ZOL) and pamidronate (PAM) and oral alendronate (FOS) on the human oral cavity using gingival fibroblasts and osteoblasts cells and, in addition, osteogenic sarcoma cells (SaOS-2-cells). MATERIALS AND METHODS Human gingival fibroblasts, osteoblasts and SaOS-2-cells were seeded on multiple 6-well plates at a density of 5 × 10(5)cells in a 4-week cell culture. Four different concentrations (1, 5, 10, 20 μM) of each BP (ZOL, PAM, FOS) and pyrophosphate were used in this study. RESULTS All BP decreased collagen production and lowered cell proliferation in-vitro. ZOL was the component with most inhibitory effect. CONCLUSION The findings in this study suggest that ZOL, PAM and FOS generally diminish cell proliferation and collagen production of human gingival fibroblasts, osteoblasts and SaOS-2-cells. The present follow-up study shows that not only ZOL and PAM but also FOS have a strong inhibitory effect on collagen production and cell survival in-vitro.
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Affiliation(s)
- Y Açil
- Department of Oral and Maxillofacial Surgery, UK S-H, Campus Kiel, Arnold-Heller-Strasse 3, Haus 26, 24105 Kiel, Germany
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Ohe JY, Kwon YD, Lee HW. Bisphosphonates modulate the expression of OPG and M-CSF in hMSC-derived osteoblasts. Clin Oral Investig 2011; 16:1153-9. [PMID: 21938481 DOI: 10.1007/s00784-011-0614-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Accepted: 08/30/2011] [Indexed: 11/28/2022]
Abstract
Bisphosphonates have been known to suppress osteoclast activity, survival, and recruitment. In this study, we tested effects of BPs on expression of two critical genes for osteoclastogenesis, M-CSF, and OPG in the process of osteoblast differentiation from hMSC. (1) The cells were cultured in osteogenic induction medium together with 0 (control group) and 10-8 M alendronate, pamidronate for up 2 and 3 weeks (for real-time PCR) and 3 and 4 weeks (for ELISA). (2) The real-time PCR protocol for M-CSF, OPG, and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) consist of 40 cycles. (3) Enzyme-linked immunosorbent assay (ELISA): the amounts of M-CSF and OPG in the culture medium were determined using commercially available ELISA kits for M-CSF and OPG. Treatment of differentiating cells with alendronate or pamidronate, nitrogen-containing BPs increase the expression of OPG, which suppresses osteoclastogenesis, whereas it decreases the expression of M-CSF, which enhances preosteoclast formation. These results suggest a new mechanism by which BPs inhibit osteoclastogenesis. Results support hypothesis that progressive accumulation of bisphosphonate in jaws causes imbalance in osteogenesis and bone absorption and collateral osteoclast-osteoblast interaction. Bisphosphonate-related osteonecrosis of jaw (BPONJ) is one of the most serious complications of bisphosphonate (BP) therapy. However, the mechanism behind the this process of BPONJ is still unclear and there are so many hypotheses. Among many hypotheses, we focused on osteoclast-osteoblast interaction in this study. The findings of this study show new light on the present BPONJ occurrence theory based on the osteoclastic activity of BPs. Also, a more advanced and developed theory for BRONJ occurrence may be obtained by combining the osteoclast inhibition mechanism and the effects on osteoblastic differentiation by BPs.
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Affiliation(s)
- Joo-Young Ohe
- Department of Oral & Maxillofacial Surgery, Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
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Kadow-Romacker A, Greiner S, Schmidmaier G, Wildemann B. Effect of β-tricalcium phosphate coated with zoledronic acid on human osteoblasts and human osteoclasts in vitro. J Biomater Appl 2011; 27:577-85. [DOI: 10.1177/0885328211415722] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The combination of a bone graft material with bisphosphonates (BPs) might be advantageous for an optimal balance of material resorption and stimulation of bone formation. This study investigated the effect of β-tricalcium phosphate (β-TCP) bone grafts coated with zoledronic acid (ZOL) on osteoblast-like cells and osteoclast-like cells (OLC). As a drug carrier, the polymer poly(D,L-lactide) was used and three different concentrations of ZOL were tested. β-TCP coated with ZOL stimulated the production of osteocalcin (OC), osteoprotegerin, and sRANKL in osteoblast-like cells. The polymer coating alone caused a significant increase in collagen type 1 and OC production. OLC viability was inhibited and the tartrate-resistant acidic phosphatase isoform-5b was significantly decreased after cultivation on polymer-coated β-TCP for 12 days. The three different concentrations of ZOL decreased cell viability and no TRAPiso-5b was detectable, indicating a strong reduction of the TRAPiso-5b after 12 days in culture. After 21 days in culture, only the higher ZOL concentrations significantly reduced cell viability and TRAPiso-5b. The results of this study show that coating of β-TCP with ZOL has stimulating effects on osteoblast-like cells. Additionally, an inhibition of osteoclasts was seen. The combination of this bone grafting material with BPs might, therefore, be effective in the treatment of large bone defects.
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Affiliation(s)
- A Kadow-Romacker
- Berlin–Brandenburg Center for Regenerative Therapies, Julius Wolff Institut, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - S Greiner
- Center for Musculoskeletal Surgery, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - G Schmidmaier
- Department for Orthopedic and Trauma Surgery, University Clinic of Heidelberg, Heidelberg, Germany
| | - B Wildemann
- Berlin–Brandenburg Center for Regenerative Therapies, Julius Wolff Institut, Charité – Universitätsmedizin Berlin, Berlin, Germany
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Wehrhan F, Hyckel P, Guentsch A, Nkenke E, Stockmann P, Schlegel KA, Neukam FW, Amann K. Bisphosphonate-associated osteonecrosis of the jaw is linked to suppressed TGFβ1-signaling and increased Galectin-3 expression: a histological study on biopsies. J Transl Med 2011; 9:102. [PMID: 21726429 PMCID: PMC3144016 DOI: 10.1186/1479-5876-9-102] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Accepted: 07/04/2011] [Indexed: 01/16/2023] Open
Abstract
Background Bisphosphonate associated osteonecrosis of the jaw (BRONJ) implies an impairment in oral hard- and soft tissue repair. An understanding of the signal transduction alterations involved can inform therapeutic strategies. Transforming growth factor β1 (TGFβ1) is a critical regulator of tissue repair; galectin-3 mediates tissue differentiation and specifically modulates periodontopathic bacterial infection. The aim of this study was to compare the expression of TGFβ1-related signaling molecules and Galectin-3 in BRONJ-affected and healthy mucosal tissues. To discriminate between BRONJ-specific impairments in TGFβ1 signaling and secondary inflammatory changes, the results were compared to the expression of TGFβ1 and Galectin-3 in mucosal tissues with osteoradionecrosis. Methods Oral mucosal tissue samples with histologically-confirmed BRONJ (n = 20), osteoradionecrosis (n = 20), and no lesions (normal, n = 20) were processed for immunohistochemistry. Automated staining with an alkaline phosphatase-anti-alkaline phosphatase kit was used to detect TGFβ1, Smad-2/3, Smad-7, and Galectin-3. We semiquantitatively assessed the ratio of stained cells/total number of cells (labeling index, Bonferroni-adjustment). Results TGFβ1 and Smad-2/3 were significantly decreased (p < 0.032 and p(0.028, respectively) in the BRONJ samples and significantly increased (p < 0.04 and p <0.043, respectively) in the osteoradionecrosis samples compared to normal tissue. Smad-7 was significantly increased (p < 0.031) in the BRONJ group and significantly decreased (p < 0.026) in the osteoradionecrosis group. Galectin-3 staining was significantly (p < 0.025) increased in both the BRONJ and the osteoradionecrosis (p < 0.038) groups compared to the normal tissue group. However, Galectin-3 expression was significantly higher in the BRONJ samples than in the osteoradionecrosis samples (p < 0.044). Conclusion Our results showed that disrupted TGFβ1 signaling was associated with delayed periodontal repair in BRONJ samples. The findings also indicated that impairments in TGFβ1-signaling were different in BRONJ compared to osteoradionecrosis. BRONJ appeared to be associated with increased terminal osseous differentiation and decreased soft tissue proliferation. The increase in Galectin-3 reflected the increase in osseous differentiation of mucoperiosteal progenitors, and this might explain the inflammatory anergy observed in BRONJ-affected soft tissues. The results substantiated the clinical success of treating BRONJ with sequestrectomy, followed by strict mucosa closure. BRONJ can be further elucidated by investigating the specific intraoral osteoimmunologic status.
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Affiliation(s)
- Falk Wehrhan
- Department of Oral and Maxillofacial Surgery University of Erlangen-Nuremberg, Germany.
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Kramer JM, Fantasia JE. Bisphosphonates and Osteonecrosis of the Jaws: A Review of Clinical Features and the Drug Effect on Oral Soft Tissues. Clin Rev Bone Miner Metab 2011. [DOI: 10.1007/s12018-011-9083-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Froelich K, Radeloff A, Köhler C, Mlynski R, Müller J, Hagen R, Kleinsasser NH. Bisphosphonate-induced osteonecrosis of the external ear canal: a retrospective study. Eur Arch Otorhinolaryngol 2011; 268:1219-1225. [DOI: 10.1007/s00405-011-1496-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Accepted: 01/18/2011] [Indexed: 11/30/2022]
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Holen I, Coleman RE. Anti-tumour activity of bisphosphonates in preclinical models of breast cancer. Breast Cancer Res 2010; 12:214. [PMID: 21176176 PMCID: PMC3046431 DOI: 10.1186/bcr2769] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
There is increasing evidence of anti-tumour effects of bisphosphonates from pre-clinical studies, supporting a role for these drugs beyond their traditional use in treatment of cancer-induced bone disease. A range of model systems have been used to investigate the effects of different bisphosphonates on tumour growth, both in bone and at peripheral sites. Most of these studies conclude that bisphosphonates cause a reduction in tumour burden, but that early intervention and the use of high and/or repeated dosing is required. Successful eradication of cancer may only be achievable by targeting the tumour cells directly whilst also modifying the tumour microenvironment. In line with this, bisphosphonates are demonstrated to be particularly effective at reducing breast tumour growth when used in combination with agents that directly target cancer cells. Recent studies have shown that the effects of bisphosphonates on breast tumours are not limited to bone, and that prolonged anti-tumour effects may be achieved following their inclusion in combination therapy. This has opened the field to a new strand of bisphosphonate research, focussed on elucidating their effects on cells and components of the local, regional and distal tumour microenvironment. This review highlights the recent developments in relation to proposed anti-tumour effects of bisphosphonates reported from in vitro and in vivo models, and summarises the data from key breast cancer studies. Evidence for effects on different processes and cell types involved in cancer development and progression is discussed, and the main outstanding issues identified.
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Affiliation(s)
- Ingunn Holen
- Academic Unit of Clinical Oncology, University of Sheffield, Sheffield, UK.
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Cvikl B, Agis H, Stögerer K, Moritz A, Watzek G, Gruber R. The response of dental pulp-derived cells to zoledronate depends on the experimental model. Int Endod J 2010; 44:33-40. [PMID: 20812943 DOI: 10.1111/j.1365-2591.2010.01792.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To investigate whether zoledronate (ZOL) can cause a cytotoxic response in dental pulp-derived cells (DPCs) in vitro. METHODOLOGY Cell activity was assessed utilizing MTT tests, (3) [H]thymidine, and (3) [H]leucine incorporation assays in human DPCs in response to ZOL. Cell activity assays were also preformed on calcium phosphate-coated plates. Cell death was analysed with annexin V/propidium iodide, trypan blue staining and Western blot analysis. RESULTS Micromolar concentrations of ZOL were required to decrease the activity of DPCs. The decreased activity of DPCs was associated with the occurrence of apoptosis and necrosis. No adverse effects were observed when DPCs were cultured on calcium phosphate-coated plates with ZOL. CONCLUSION High concentrations of soluble ZOL were required to cause adverse effects in vitro. These adverse effects are abolished when the bisphosphonate was bound to a mineralized surface. However, the clinical relevance of these results remains to be determined.
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Affiliation(s)
- B Cvikl
- Department of Conservative Dentistry, Medical University of Vienna, Vienna, Austria
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Ziebart T, Pabst A, Klein MO, Kämmerer P, Gauss L, Brüllmann D, Al-Nawas B, Walter C. Bisphosphonates: restrictions for vasculogenesis and angiogenesis: inhibition of cell function of endothelial progenitor cells and mature endothelial cells in vitro. Clin Oral Investig 2009; 15:105-11. [PMID: 20024592 DOI: 10.1007/s00784-009-0365-2] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Accepted: 12/02/2009] [Indexed: 12/22/2022]
Abstract
Bisphosphonate-associated osteonecrosis of the jaws (BP-ONJ) is one of the main side effects in patients treated with bisphosphonates for metastasis to the bone or osteoporosis. BP-ONJ usually occurs in patients treated with highly potent nitrogen-containing bisphosphonates. The exact mechanism of action and etiopathology is still unknown. In addition to inhibition of bone remodelling, an anti-angiogenetic effect has become the focus of research. The aim of these study was to investigate the effect of different bisphosphonates on human umbilicord vein endothelial cells (HUVEC) and endothelial progenitor cells (EPC), which play an important role in angiogenesis. Using varying concentrations, the impact of one non-nitrogen-containing bisphosphonate (clodronate) and three nitrogen-containing bisphosphonates (ibandronate, pamidronate and zoledronate) on HUVEC and EPC was analysed. The biologic behaviour of HUVEC after incubation with different bisphosphonates was measured in a Boyden migration assay as well as in a 3D angiogenesis assay. The number of apoptotic cells was measured by Tunnel assay. To underline the importance of neoangiogenesis in the context of BP-ONJ, we measured the EPC number after incubation with different bisphosphonates in vitro. HUVEC and EPC were significantly influenced by bisphosphonates at different concentrations compared with the non-treated control groups. The nitrogen-containing bisphosphonates pamidronate and zoledronate had the greatest impact on the cells, whereas clodronate followed by ibandronate was less distinct on cell function. These results underline the hypothesis that inhibited angiogenesis induced by bisphosphonates might be of relevance in the development and maintenance of BP-ONJ. The increased impact by highly potent bisphosphonates on HUVEC and EPC may explain the high prevalence of BP-ONJ in patients undergoing this treatment.
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Affiliation(s)
- Thomas Ziebart
- Klinik für Mund-, Kiefer-und Gesichtschirurgie, Johannes Gutenberg-Universität Mainz, Augustusplatz 2, 55131 Mainz, Germany.
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