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Ratzkowski B, Koth VS, Azambuja AA, Salum FG, de Figueiredo MAZ, Cherubini K. Effect of tyrosine kinase inhibitor sunitinib on tissue repair at tooth extraction sites. Oral Dis 2023; 29:1070-1079. [PMID: 34724280 DOI: 10.1111/odi.14065] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/11/2021] [Accepted: 10/23/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Both zoledronic acid, a potent bisphosphonate, and the antiangiogenic drug sunitinib are included in anticancer protocols and have also been associated with jaw osteonecrosis. Our aim was to compare the effect of these drugs on tissue repair at tooth extraction sites. METHODS Wistar rats were allocated into four groups: (1) sunitinib; (2) sunitinib/zoledronic acid; (3) zoledronic acid; (4) control group. The animals underwent tooth extractions and maxillae were macro- and microscopically analyzed. RESULTS On macroscopic evaluation, the zoledronic acid group showed a significantly higher frequency of oral mucosal lesion; lesions in the sunitinib/zoledronic acid group were larger, albeit not significantly so. The sunitinib/zoledronic acid group had significantly less epithelium than the zoledronic acid and control group, but showed no significant difference compared to the sunitinib group. The sunitinib/zoledronic acid and zoledronic acid groups did not differ from each other, but had significantly less connective tissue and more non-vital bone and microbial colonies than sunitinib and control groups, whereas these latter two groups did not significantly differ from each other. Vital bone and inflammatory infiltrate did not significantly differ between groups. CONCLUSION Sunitinib alone is not associated with non-vital bone, whereas the sunitinib/zoledronic acid combination and zoledronic acid alone are.
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Affiliation(s)
- Bruna Ratzkowski
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Valesca S Koth
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Alan A Azambuja
- Hospital São Lucas, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Fernanda G Salum
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Maria A Z de Figueiredo
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Karen Cherubini
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
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Georgiou AC, Twisk JWR, Crielaard W, Ouwerling P, Schoneveld AH, van der Waal SV. The influence of apical periodontitis on circulatory inflammatory mediators in peripheral blood: A prospective case-control study. Int Endod J 2023; 56:130-145. [PMID: 36284462 PMCID: PMC10098678 DOI: 10.1111/iej.13854] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 10/16/2022] [Accepted: 10/17/2022] [Indexed: 01/17/2023]
Abstract
AIM To explore the influence of apical periodontitis (AP) on inflammatory markers in blood of otherwise healthy individuals and to depict the inflammatory profile of the healing after dental extraction. METHODOLOGY This is a prospective case-control intervention study, during which, individuals with a diagnosis of AP of one affected tooth were included, along with a control group matched for age and gender. A broad panel of blood inflammatory mediators was examined longitudinally in all subjects during six visits. In the case of the AP subjects, the tooth with AP was extracted at the third visit. Results were analysed by linear regression analyses and linear mixed-model analyses. RESULTS A total of 53 subjects were included in the study, 27 with AP and 26 without. Fifteen females and 12 males were included in the AP group, and 14 females and 12 males in the control group. At baseline, granulocyte colony-stimulating factor (p < .001), interleukin (IL)-1β (p = .03) and IL-4 (p = .01) were significantly lower in AP subjects than in controls. Comparison of the differences between baseline and the last visit, i.e. 3 months after the tooth extraction, showed a significant reduction in IL-10 (p = .03) and IL-12p70 (p = .01). CONCLUSIONS The immunologic profile of chronic AP in one tooth and its healing profile reveals a systemic low-grade inflammation through compensatory immunosuppression. A larger lesion or multiple lesions could disrupt the balance that the system is trying to maintain, resulting in loss of homeostasis.
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Affiliation(s)
- Athina Christina Georgiou
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands
| | - Jos W R Twisk
- Department of Epidemiology and Data Science, Amsterdam UMC, Location VU University Medical Center, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Wim Crielaard
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands
| | - Peter Ouwerling
- Tandheelkundig Centrum Molenvliet, Alphen aan den Rijn, The Netherlands
| | - Arjan H Schoneveld
- Division LAB, Department Central Diagnostic Laboratory, UMC Utrecht, Utrecht, The Netherlands
| | - Suzette Veronica van der Waal
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands.,Department of Endodontics, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands
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Mecca LEDA, Fischborn AR, Andreis JD, Delfrate G, Mroczek T, Rigo NM, Oliveira FBD, Castro ML, Taba Junior M, Claudino M, Franco GCN. Absence of medication-related jaw osteonecrosis after treatment with strontium ranelate in ovariectomized rats. Braz Oral Res 2022; 36:e084. [PMID: 35703709 DOI: 10.1590/1807-3107bor-2022.vol36.0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 03/07/2022] [Indexed: 08/24/2023] Open
Abstract
This study aimed to evaluate the potential of strontium ranelate (SR) in medication-related jaw osteonecrosis (MRONJ) after tooth extraction in ovariectomized rats. Thirty ovariectomized rats were divided into three groups (n = 10): bisphophonate (BP) group (zoledronic acid; 0.4 mg/kg/week), SR group (625 mg/kg/day), and control group (saline solution). The lower first molars were extracted after 60 days of drug therapy. Drug administration was continued for another 30 days after tooth extraction. The mandibles were subjected to clinical, histological, radiographic, and microtomographic evaluations. Only the BP group showed clinical changes, characterized by the presence of 70% (n = 7) and 20% (n = 2) of ulcers and extraoral fistulas. Radiographic evaluation demonstrated bone sequestration only in the BP group (n = 7, 70%). Microtomographic analysis revealed increased bone porosity after ovariectomy, particularly in the the control group (p < 0.05). The BP group showed a higher bone surface density, bone volume, and trabecular number than SR and control groups, but with less trabecular separation (p < 0.05). All the animals in the BP group demonstrated histological osteonecrosis. There was no evidence of osteonecrosis in the control and SR groups, which was characterized by the absence of empty osteocyte gaps and associated with the gradual healing of the extraction area. Also, an increased number of blood vessels and a reduced number of osteoclasts were observed in the SR group (p < 0.05). Therefore, SR treatment increased angiogenesis and osteoclastogenesis in the healing socket and was not associated with MRONJ development after tooth extraction in ovariectomized rats.
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Affiliation(s)
| | - Amanda Regina Fischborn
- Universidade Estadual de Ponta Grossa - UEPG, Department of Dentistry , Ponta Grossa , PR , Brazil
| | - Jessica Daniela Andreis
- Universidade Estadual de Ponta Grossa - UEPG, Department of Dentistry , Ponta Grossa , PR , Brazil
| | - Gabrielle Delfrate
- Universidade Estadual de Ponta Grossa - UEPG, Department of Dentistry , Ponta Grossa , PR , Brazil
| | - Tayline Mroczek
- Universidade Estadual de Ponta Grossa - UEPG, Department of Dentistry , Ponta Grossa , PR , Brazil
| | - Natália Mariane Rigo
- Universidade Estadual de Ponta Grossa - UEPG, Department of Dentistry , Ponta Grossa , PR , Brazil
| | - Fábio Brasil de Oliveira
- Universidade Estadual de Ponta Grossa - UEPG, Department of Dentistry , Ponta Grossa , PR , Brazil
| | - Myrella Lessio Castro
- Faculdade de Ciências do Tocantins - Facit, Department of Pharmacology , Araguaína , TO , Brazil
| | - Mario Taba Junior
- Universidade de São Paulo - USP, Ribeirão Preto School of Dentistry , Department of Oral Surgery and Periodontology , Ribeirão Preto , SP , Brazil
| | - Marcela Claudino
- Universidade Estadual de Ponta Grossa - UEPG, Department of Dentistry , Ponta Grossa , PR , Brazil
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Strontium ranelate improves post-extraction socket healing in rats submitted to the administration of bisphosphonates. Odontology 2022; 110:467-475. [PMID: 35041107 DOI: 10.1007/s10266-021-00678-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/29/2021] [Indexed: 10/19/2022]
Abstract
The aim of this study was to evaluate the effect of strontium ranelate (Sr) on post-extraction socket healing in rats submitted to the administration of bisphosphonates. Sixty rats were submitted to the tooth extraction of the first lower molar after 60 days of the daily administration of saline solution (SS) or alendronate (ALN). Then, the animals were allocated into six groups namely CTR: administration of SS during the whole experiment, ALN: administration of ALN during the whole experiment, ALN/SS: application of SS for 30 days after extraction in animals previously treated with ALN, ALN/Sr: application of Sr for 30 days after extraction in animals previously treated with ALN, ALN/S60: ALN therapy interruption 30 days before the extraction followed by the application of SS for 60 days, and ALN/Sr60: ALN therapy interruption 30 days before the tooth extraction followed by the application of Sr for 60 days. The healing of the post-extraction sockets was evaluated by microCT and histomorphometry. The use of ALN induced partial bone necrosis, inflammatory infiltration, and a delay in soft tissue healing; the use of Sr improved the connective tissue organization. Sr has subtle positive effects on the post-extraction healing in animals submitted to the administration of bisphosphonate.
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Aguirre JI, Castillo EJ, Kimmel DB. Preclinical models of medication-related osteonecrosis of the jaw (MRONJ). Bone 2021; 153:116184. [PMID: 34520898 PMCID: PMC8743993 DOI: 10.1016/j.bone.2021.116184] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/15/2021] [Accepted: 09/07/2021] [Indexed: 01/20/2023]
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.
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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
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Sun Q, Nan XY, Tian FM, Liu F, Ping SH, Zhou Z, Zhang L. Raloxifene retards the progression of adjacent segmental intervertebral disc degeneration by inhibiting apoptosis of nucleus pulposus in ovariectomized rats. J Orthop Surg Res 2021; 16:368. [PMID: 34107971 PMCID: PMC8188785 DOI: 10.1186/s13018-021-02504-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/23/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Adjacent segmental intervertebral disk degeneration (ASDD) is a major complication secondary to lumbar fusion. Although ASSD pathogenesis remains unclear, the primary cause of intervertebral disk degeneration (IVDD) development is apoptosis of nucleus pulposus (NP). Raloxifene (RAL) could delay ASDD by inhibiting NP apoptosis. METHODS An ASDD rat model was established by ovariectomy (OVX) and posterolateral spinal fusion (PLF) on levels 4-5 of the lumbar vertebrae. Rats in the treatment groups were administered 1 mg/kg/d RAL by gavage for 12 weeks, following which, all animals were euthanized. Lumbar fusion, apoptosis, ASDD, and vertebrae micro-architecture were evaluated. RESULTS RAL maintained intervertebral disk height (DHI), delayed vertebral osteoporosis, reduced histological score, and inhibited apoptosis. The OVX+PLF+RAL group revealed upregulated expression of aggrecan and B-cell lymphoma-2 (bcl2), as well as significantly downregulated expression of a disintegrin and metalloproteinase with thrombospondin motifs 4 (ADAMTS-4), metalloproteinase-13 (MMP-13), caspase-3, BCL2-associated X (bax), and transferase dUTP nick end labeling (TUNEL) staining. Micro-computed tomography (Micro-CT) analysis revealed higher bone volume fraction (BV/TV), bone mineral density (BMD), and trabecular number (Tb.N), and lower trabecular separation (Tb.Sp) in OVX+PLF+RAL group than in the OVX+PLF group. CONCLUSIONS RAL can postpone ASDD development in OVX rats through inhibiting extracellular matrix metabolic imbalance, NP cell apoptosis, and vertebral osteoporosis. These findings showed RAL as a potential therapeutic target for ASDD.
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Affiliation(s)
- Qi Sun
- Department of Orthopedic Surgery, Hebei Medical University, 361 Zhongshan E Rd, Shijiazhuang, Hebei, 050000, People's Republic of China
| | - Xin-Yu Nan
- Department of Orthopedic Surgery, Hebei Medical University, 361 Zhongshan E Rd, Shijiazhuang, Hebei, 050000, People's Republic of China
| | - Fa-Ming Tian
- Medical Research Center, North China University of Science and Technology, Tangshan, People's Republic of China
| | - Fang Liu
- Medical Research Center, North China University of Science and Technology, Tangshan, People's Republic of China
| | - Shao-Hua Ping
- Department of Orthopedic Surgery, Hebei Medical University, 361 Zhongshan E Rd, Shijiazhuang, Hebei, 050000, People's Republic of China
| | - Zhuang Zhou
- Department of Bone and Soft Tissue Oncology, The Third Hospital of Hebei Medical University, Shijiazhuang, People's Republic of China
| | - Liu Zhang
- Department of Orthopedic Surgery, Hebei Medical University, 361 Zhongshan E Rd, Shijiazhuang, Hebei, 050000, People's Republic of China.
- Department of Orthopedic Surgery, Emergency General Hospital, Beijing, People's Republic of China.
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