1
|
Nishimaki K, Kaibuchi N, Washio K, Yamato M. Application of mesenchymal stromal cell sheets to prevent medication-related osteonecrosis of the jaw with titanium implants in rats. Odontology 2024:10.1007/s10266-024-00900-w. [PMID: 38367068 DOI: 10.1007/s10266-024-00900-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/04/2024] [Indexed: 02/19/2024]
Abstract
Medication-related osteonecrosis of the jaw (MRONJ) is an intractable adverse event. Dental implants are one of the triggering factors of MRONJ, and implant therapy with low MRONJ risk is required. This study aimed to investigate a rat model of MRONJ induced by extraoral placement of titanium materials and the use of mesenchymal stromal cell (MSCs) sheets to prevent MRONJ. Eight-week-old male rats were administered zoledronate and dexamethasone thrice weekly until killing. A week after drug initiation, a titanium screw and a plate were placed on the left buccal side of the mandible. Allogeneic bone marrow-derived MSC sheets were co-grafted with the titanium plates in the MSC sheet ( +) group. Six weeks after titanium placement, the rats were killed, and their excised mandibular bones were subjected to micro-computed tomography (CT) analysis. Histological analysis was performed after the titanium implants were removed. Empty lacunae visualized on hematoxylin and eosin staining were used as evidence of bone necrosis. Bone necrosis was reduced in the MSC sheet ( +) group. Tartrate-resistant acid phosphatase (TRAP) staining revealed a decreased number of TRAP-positive cells in areas with a large number of empty lacunae in the MSC sheet (-) group. Micro-CT analyses demonstrated that the bone volume fraction (BV/TV) was not significantly different between the MSC sheet (-) and ( +) groups. We conclude that MRONJ can be triggered by a titanium placement in rats, and grafting of allogeneic MSC sheets has the potential to prevent MRONJ.
Collapse
Affiliation(s)
- Kazuhiro Nishimaki
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Nobuyuki Kaibuchi
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
- Department of Oral and Maxillofacial Surgery, Tokyo Women's Medical University School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
| | - Kaoru Washio
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| |
Collapse
|
2
|
Kaneko H, Kuroshima S, Kozutsumi R, Al-Omari FA, Hayano H, Nakajima K, Sawase T. Zoledronate/Anti-VEGF Neutralizing Antibody Combination Administration Increases Osteal Macrophages in a Murine Model of MRONJ Stage 0-like Lesions. J Clin Med 2023; 12. [PMID: 36902701 DOI: 10.3390/jcm12051914] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/09/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
The pathophysiology, pathogenesis, histopathology, and immunopathology of medication-related osteonecrosis of the jaw (MRONJ) Stage 0 remain unclear, although 50% of MRONJ Stage 0 cases could progress to higher stages. The aim of this study was to investigate the effects of zoledronate (Zol) and anti-vascular endothelial cell growth factor A (VEGFA) neutralizing antibody (Vab) administration on polarization shifting of macrophage subsets in tooth extraction sockets by creating a murine model of MRONJ Stage 0-like lesions. Eight-week-old, female C57BL/6J mice were randomly divided into 4 groups: Zol, Vab, Zol/Vab combination, and vehicle control (VC). Subcutaneous Zol and intraperitoneal Vab administration were performed for 5 weeks with extraction of both maxillary first molars 3 weeks after drug administration. Euthanasia was conducted 2 weeks after tooth extraction. Maxillae, tibiae, femora, tongues, and sera were collected. Structural, histological, immunohistochemical, and biochemical analyses were comprehensively performed. Tooth extraction sites appeared to be completely healed in all groups. However, osseous healing and soft tissue healing of tooth extraction sites were quite different. The Zol/Vab combination significantly induced abnormal epithelial healing, and delayed connective tissue healing due to decreased rete ridge length and thickness of the stratum granulosum and due to decreased collagen production, respectively. Moreover, Zol/Vab significantly increased necrotic bone area with increased numbers of empty lacunae compared with Vab and VC. Most interestingly, Zol/Vab significantly increased the number of CD169+ osteal macrophages (osteomacs) in the bone marrow and decreased F4/80+ macrophages, with a slightly increased ratio of F4/80+CD38+ M1 macrophages compared to VC. These findings are the first to provide new evidence of the involvement of osteal macrophages in the immunopathology of MRONJ Stage 0-like lesions.
Collapse
|
3
|
Flanagan D. Submucosal administration of dexamethasone for dental implant surgery. Clin Case Rep 2022; 10:e6589. [PMCID: PMC9701881 DOI: 10.1002/ccr3.6589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/15/2022] [Accepted: 07/30/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Dennis Flanagan
- Department of Dental Medicine Lugano University of Switzerland Lugano Switzerland
- Private Practice Willimantic Connecticut USA
| |
Collapse
|
4
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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
| |
Collapse
|
5
|
Okawa H, Kondo T, Hokugo A, Cherian P, Campagna JJ, Lentini NA, Sung EC, Chiang S, Lin YL, Ebetino FH, John V, Sun S, McKenna CE, Nishimura I. Mechanism of bisphosphonate-related osteonecrosis of the jaw (BRONJ) revealed by targeted removal of legacy bisphosphonate from jawbone using competing inert hydroxymethylene diphosphonate. eLife 2022; 11:e76207. [PMID: 36017995 PMCID: PMC9489207 DOI: 10.7554/elife.76207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 08/25/2022] [Indexed: 11/13/2022] Open
Abstract
Bisphosphonate-related osteonecrosis of the jaw (BRONJ) presents as a morbid jawbone lesion in patients exposed to a nitrogen-containing bisphosphonate (N-BP). Although it is rare, BRONJ has caused apprehension among patients and healthcare providers and decreased acceptance of this antiresorptive drug class to treat osteoporosis and metastatic osteolysis. We report here a novel method to elucidate the pathological mechanism of BRONJ by the selective removal of legacy N-BP from the jawbone using an intra-oral application of hydroxymethylene diphosphonate (HMDP) formulated in liposome-based deformable nanoscale vesicles (DNV). After maxillary tooth extraction, zoledronate-treated mice developed delayed gingival wound closure, delayed tooth extraction socket healing and increased jawbone osteonecrosis consistent with human BRONJ lesions. Single cell RNA sequencing of mouse gingival cells revealed oral barrier immune dysregulation and unresolved proinflammatory reaction. HMDP-DNV topical applications to nascent mouse BRONJ lesions resulted in accelerated gingival wound closure and bone socket healing as well as attenuation of osteonecrosis development. The gingival single cell RNA sequencing demonstrated resolution of chronic inflammation by increased anti-inflammatory signature gene expression of lymphocytes and myeloid-derived suppressor cells. This study suggests that BRONJ pathology is related to N-BP levels in jawbones and demonstrates the potential of HMDP-DNV as an effective BRONJ therapy.
Collapse
Affiliation(s)
- Hiroko Okawa
- Weintraub Center for Reconstructive Biotechnology, Division of Regenerative & Reconstructive Sciences, University of California, Los Angeles School of DentistryLos AngelesUnited States
- Division of Molecular & Regenerative Prosthodontics, Tohoku University Graduate School of DentistrySendaiJapan
| | - Takeru Kondo
- Weintraub Center for Reconstructive Biotechnology, Division of Regenerative & Reconstructive Sciences, University of California, Los Angeles School of DentistryLos AngelesUnited States
- Division of Molecular & Regenerative Prosthodontics, Tohoku University Graduate School of DentistrySendaiJapan
| | - Akishige Hokugo
- Weintraub Center for Reconstructive Biotechnology, Division of Regenerative & Reconstructive Sciences, University of California, Los Angeles School of DentistryLos AngelesUnited States
- Regenerative Bioengineering and Repair Laboratory, Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at University of California, Los AngelesLos AngelesUnited States
| | | | - Jesus J Campagna
- Department of Neurology, David Geffen School of Medicine at University of California, Los AngelesLos AngelesUnited States
| | - Nicholas A Lentini
- Department of Chemistry, University of Southern CaliforniaLos AngelesUnited States
| | - Eric C Sung
- Weintraub Center for Reconstructive Biotechnology, Division of Regenerative & Reconstructive Sciences, University of California, Los Angeles School of DentistryLos AngelesUnited States
| | - Samantha Chiang
- Division of Oral & Systemic Health Sciences, University of California, Los Angeles School of DentistryLos AngelesUnited States
| | - Yi-Ling Lin
- Section of Oral & Maxillofacial Pathology, University of California, Los Angeles School of DentistryLos AngelesUnited States
| | | | - Varghese John
- Department of Neurology, David Geffen School of Medicine at University of California, Los AngelesLos AngelesUnited States
| | - Shuting Sun
- Weintraub Center for Reconstructive Biotechnology, Division of Regenerative & Reconstructive Sciences, University of California, Los Angeles School of DentistryLos AngelesUnited States
- BioVinc, LLCPasadenaUnited States
| | - Charles E McKenna
- Department of Chemistry, University of Southern CaliforniaLos AngelesUnited States
| | - Ichiro Nishimura
- Weintraub Center for Reconstructive Biotechnology, Division of Regenerative & Reconstructive Sciences, University of California, Los Angeles School of DentistryLos AngelesUnited States
- Division of Oral & Systemic Health Sciences, University of California, Los Angeles School of DentistryLos AngelesUnited States
| |
Collapse
|
6
|
Yan R, Jiang R, Hu L, Deng Y, Wen J, Jiang X. Establishment and assessment of rodent models of medication-related osteonecrosis of the jaw (MRONJ). Int J Oral Sci 2022; 14:41. [PMID: 35948539 PMCID: PMC9365764 DOI: 10.1038/s41368-022-00182-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 05/21/2022] [Accepted: 05/24/2022] [Indexed: 11/26/2022] Open
Abstract
Medication-related osteonecrosis of the jaw (MRONJ) is primarily associated with administering antiresorptive or antiangiogenic drugs. Despite significant research on MRONJ, its pathogenesis and effective treatments are still not fully understood. Animal models can be used to simulate the pathophysiological features of MRONJ, serving as standardized in vivo experimental platforms to explore the pathogenesis and therapies of MRONJ. Rodent models exhibit excellent effectiveness and high reproducibility in mimicking human MRONJ, but classical methods cannot achieve a complete replica of the pathogenesis of MRONJ. Modified rodent models have been reported with improvements for better mimicking of MRONJ onset in clinic. This review summarizes representative classical and modified rodent models of MRONJ created through various combinations of systemic drug induction and local stimulation and discusses their effectiveness and efficiency. Currently, there is a lack of a unified assessment system for MRONJ models, which hinders a standard definition of MRONJ-like lesions in rodents. Therefore, this review comprehensively summarizes assessment systems based on published peer-review articles, including new approaches in gross observation, histological assessments, radiographic assessments, and serological assessments. This review can serve as a reference for model establishment and evaluation in future preclinical studies on MRONJ.
Collapse
Affiliation(s)
- Ran Yan
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai, China
| | - Ruixue Jiang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai, China
| | - Longwei Hu
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai, China.,Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuwei Deng
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai, China
| | - Jin Wen
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China. .,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China. .,National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai, China.
| | - Xinquan Jiang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China. .,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China. .,National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai, China.
| |
Collapse
|
7
|
Wu S, Li F, Tan J, Ye X, Le Y, Liu N, Everts V, Wan Q. Porphyromonas gingivalis Induces Bisphosphonate-Related Osteonecrosis of the Femur in Mice. Front Cell Infect Microbiol 2022; 12:886411. [PMID: 35811676 PMCID: PMC9256925 DOI: 10.3389/fcimb.2022.886411] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/25/2022] [Indexed: 11/15/2022] Open
Abstract
One of the most prominent characteristics of bisphosphonate-related osteonecrosis of the jaw(BRONJ) is its site-specificity. Osteonecrosis tends to occur specifically in maxillofacial bones, in spite of a systemic administration of the medicine. Previous studies suggested rich blood supply and fast bone turnover might be reasons for BRONJ. Yet, a sound scientific basis explaining its occurrence is still lacking. The present study aimed to explore the role of Porphyromonas gingivalis (P. gingivalis), an important oral pathogen, on the site-specificity of bisphosphonate-induced osteonecrosis and to elucidate its underlying mechanism. Mice were intraperitoneally injected with zoledronic acid (ZA) or saline for 3 weeks. In the third week, the right mandibular first molars were extracted and circular bone defects with a diameter of 1 mm were created in right femurs. After the operation, drug administration was continued, and P. gingivalis suspension was applied to the oral cavities and femur defects. The mice were killed after four or eight weeks postoperatively. The right mandibles and femurs were harvested for micro-CT and histological analyses. A poor healing of bone defects of both jaws and femurs was noted in mice injected with both ZA and P. gingivalis. Micro-CT analysis showed a decreased bone volume, and histological staining showed an increased number of empty osteocyte lacunae, a decreased collagen regeneration, an increased inflammatory infiltration and a decreased number of osteoclasts. In addition, the left femurs were collected for isolation of osteoclast precursors (OCPs). The osteoclastogenesis potential of OCPs was analyzed in vitro. OCPs extracted from mice of ZA-treated groups were shown to have a lower osteoclast differentiation potential and the expression level of related genes and proteins was declined. In conclusion, we established a mouse model of bisphosphonate-related osteonecrosis of both the jaw and femur. P. gingivalis could inhibit the healing of femur defects under the administration of ZA. These findings suggest that P. gingivalis in the oral cavity might be one of the steering compounds for BRONJ to occur.
Collapse
Affiliation(s)
- Shuxuan Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology [Hubei-Ministry of Science and Technology(MOST)] and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Feng Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology [Hubei-Ministry of Science and Technology(MOST)] and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jingjing Tan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology [Hubei-Ministry of Science and Technology(MOST)] and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Xiaoling Ye
- The State Key Laboratory Breeding Base of Basic Science of Stomatology [Hubei-Ministry of Science and Technology(MOST)] and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Stomatology, Shenzhen Yantian District People’s Hospital, Shenzhen, China
| | - Yushi Le
- The State Key Laboratory Breeding Base of Basic Science of Stomatology [Hubei-Ministry of Science and Technology(MOST)] and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Nianke Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology [Hubei-Ministry of Science and Technology(MOST)] and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Vincent Everts
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit, Amsterdam, Netherlands
- Department of Anatomy, Dental Faculty, Chulalongkorn University, Bangkok, Thailand
| | - Qilong Wan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology [Hubei-Ministry of Science and Technology(MOST)] and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Orthognathic & Cleft Lip and Palate Plastic Surgery, Hospital of Stomatology, Wuhan University, Wuhan, China
- *Correspondence: Qilong Wan,
| |
Collapse
|
8
|
de Faria LP, Sueyoshi G, de Oliveira TC, Holliday LS, Arana-Chavez VE. Effects of Alendronate and Dexamethasone on Osteoclast Gene Expression and Bone Resorption in Mouse Marrow Cultures. J Histochem Cytochem 2022; 70:169-179. [PMID: 34915746 PMCID: PMC8777375 DOI: 10.1369/00221554211063519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Osteoclasts are cells whose main function is the resorption of bone matrix. However, several factors, including medications, can interfere with the resorption process. Alendronate (ALN), a nitrogen-containing type of bisphosphonate, and dexamethasone (DEX), a glucocorticoid, are drugs that may affect the resorption activity. The aim of this study is to investigate the effects of ALN, and/or DEX on osteoclast gene expression and resorption activity in primary mouse marrow cultures stimulated with 1,25-dihydroxyvitamin D3, a model for the bone microenvironment. Cultures were treated only with ALN (10-5 M), DEX (10-6 M), and with a combination of both agents. Viability assays performed at days 5, 7, and 9 showed the highest number of viable cells at day 7. All the following assays were then performed at day 7 of cell culture: tartrate resistant acid phosphatase (TRAP) histochemistry, receptor activator of nuclear factor kappa B ligand (RANKL) immunofluorescence, osteoprotegerin (OPG), and RANKL gene expression by qPCR and resorption analysis by scanning electron microscopy. Treatment with ALN, DEX, and the combination of both did not promote significant changes in the number of TRAP+ cells, although larger giant cells were detected in groups treated with DEX. DEX treatment increased the gene expression of RANKL and reduced OPG. The treatment with ALN reduced the depth of the resorption pits, but their inhibitory effect was less effective when administered with DEX.
Collapse
Affiliation(s)
| | - Giuliana Sueyoshi
- Department of Biomaterials and Oral
Biology, School of Dentistry, University of São Paulo, São
Paulo, Brazil
| | - Taís Carvalho de Oliveira
- Department of Biomaterials and Oral
Biology, School of Dentistry, University of São Paulo, São
Paulo, Brazil
| | - L. Shannon Holliday
- Department of Orthodontics, College
of Dentistry, University of Florida, Gainesville, Florida
| | - Victor E. Arana-Chavez
- Victor E. Arana-Chavez, Department
of Biomaterials and Oral Biology, School of Dentistry, University of
São Paulo, São Paulo 05508-000, SP, Brazil. E-mail:
| |
Collapse
|
9
|
Abstract
Medication-related osteonecrosis of the jaw (MRONJ) is a potentially severe adverse event affecting patients with cancer and patients with osteoporosis who have been treated with powerful antiresorptives (pARs) or angiogenesis inhibitors (AgIs). pARs, including nitrogen-containing bisphosphonates (N-BPs; e.g., zoledronic acid, alendronate) and anti-RANKL antibodies (e.g., denosumab), are used to manage bone metastases in patients with cancer or to prevent fragility fractures in patients with osteoporosis. Though significant advances have been made in understanding MRONJ, its pathophysiology is still not fully elucidated. Multiple species have been used in preclinical MRONJ research, including the rat, mouse, rice rat, rabbit, dog, sheep, and pig. Animal research has contributed immensely to advancing the MRONJ field, particularly, but not limited to, in developing models and investigating risk factors that were first observed in humans. MRONJ models have been developed using clinically relevant doses of systemic risk factors, like N-BPs, anti-RANKL antibodies, or AgIs. Specific local oral risk factors first noted in humans, including tooth extraction and inflammatory dental disease (e.g., periodontitis, periapical infection, etc.), were then added. Research in rodents, particularly the rat, and, to some extent, the mouse, across multiple laboratories, has contributed to establishing multiple relevant and complementary preclinical models. Models in larger species produced accurate clinical and histopathologic outcomes suggesting a potential role for confirming specific crucial findings from rodent research. We view the current state of animal models for MRONJ as good. The rodent models are now reliable enough to produce large numbers of MRONJ cases that could be applied in experiments testing treatment modalities. The course of MRONJ, including stage 0 MRONJ, is characterized well enough that basic studies of the molecular or enzyme-level findings in different MRONJ stages are possible. This review provides a current overview of the existing models of MRONJ, their more significant features and findings, and important instances of their application in preclinical research.
Collapse
Affiliation(s)
- J I Aguirre
- Department of Physiological Sciences, University of Florida (UF), Gainesville, FL, United States of America.
| | - E J Castillo
- Department of Physiological Sciences, University of Florida (UF), Gainesville, FL, United States of America.
| | - D B Kimmel
- Department of Physiological Sciences, University of Florida (UF), Gainesville, FL, United States of America
| |
Collapse
|