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Banaganapalli B, Fallatah I, Alsubhi F, Shetty PJ, Awan Z, Elango R, Shaik NA. Paget's disease: a review of the epidemiology, etiology, genetics, and treatment. Front Genet 2023; 14:1131182. [PMID: 37180975 PMCID: PMC10169728 DOI: 10.3389/fgene.2023.1131182] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 04/17/2023] [Indexed: 05/16/2023] Open
Abstract
Paget's disease of bone (PDB) is the second most prevalent metabolic bone disorder worldwide, with a prevalence rate of 1.5%-8.3%. It is characterized by localized areas of accelerated, disorganized, and excessive bone production and turnover. Typically, PDB develops in the later stages of life, particularly in the late 50s, and affects men more frequently than women. PDB is a complex disease influenced by both genetic and environmental factors. PDB has a complex genetic basis involving multiple genes, with SQSTM1 being the gene most frequently associated with its development. Mutations affecting the UBA domain of SQSTM1 have been detected in both familial and sporadic PDB cases, and these mutations are often associated with severe clinical expression. Germline mutations in other genes such as TNFRSF11A, ZNF687 and PFN1, have also been associated with the development of the disease. Genetic association studies have also uncovered several PDB predisposing risk genes contributing to the disease pathology and severity. Epigenetic modifications of genes involved in bone remodelling and regulation, including RANKL, OPG, HDAC2, DNMT1, and SQSTM1, have been implicated in the development and progression of Paget's disease of bone, providing insight into the molecular basis of the disease and potential targets for therapeutic intervention. Although PDB has a tendency to cluster within families, the variable severity of the disease across family members, coupled with decreasing incidence rates, indicates that environmental factors may also play a role in the pathophysiology of PDB. The precise nature of these environmental triggers and how they interact with genetic determinants remain poorly understood. Fortunately, majority of PDB patients can achieve long-term remission with an intravenous infusion of aminobisphosphonates, such as zoledronic acid. In this review, we discuss aspects like clinical characteristics, genetic foundation, and latest updates in PDB research.
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Affiliation(s)
- Babajan Banaganapalli
- Department of Genetic Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Princess Al-Jawhara Al-Brahim Center of Excellence in Research of Hereditary Disorders, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ibrahim Fallatah
- Department of Genetic Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fai Alsubhi
- Department of Genetic Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Preetha Jayasheela Shetty
- Department of Biomedical Sciences, College of Medicine, Gulf Medical University, Ajman, United Arab Emirates
| | - Zuhier Awan
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ramu Elango
- Department of Genetic Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Princess Al-Jawhara Al-Brahim Center of Excellence in Research of Hereditary Disorders, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Noor Ahmad Shaik
- Department of Genetic Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Princess Al-Jawhara Al-Brahim Center of Excellence in Research of Hereditary Disorders, King Abdulaziz University, Jeddah, Saudi Arabia
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2
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Zhu T, Wang R, Jiang H, Shi A, Chai M, Huang C, Yang S, Zhong W, Cai Y. Fibroblast Programmed Cell Death Ligand 1 Promotes Osteoclastogenesis in Odontogenic Keratocysts. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:286-295. [PMID: 36509120 DOI: 10.1016/j.ajpath.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022]
Abstract
Local aggressive growth of odontogenic keratocysts (OKCs) can cause serious bone destruction, even resulting in pathologic fractures of the mandible. The mechanism of osteoclastogenesis in OKCs was explored by investigating the role of programmed cell death ligand 1 (PD-L1), a key immune checkpoint, in OKCs and its relationship with the M2 isoform of pyruvate kinase (PKM2), a key enzyme of glycolysis. The data from immunohistochemistry, real-time quantitative PCR, Western blot, and flow cytometry indicated that the expression level of PD-L1 was significantly increased in the stroma and fibroblasts of OKCs (OKC-Fs) when compared with oral mucosa. Double-labeling staining demonstrated that osteoclasts in OKCs spatially interacted with PD-L1-positive OKC-Fs. Exogenous expression of PD-L1 in OKC-Fs promoted osteoclastogenesis when OKC-Fs were co-cultured with osteoclast precursors (RAW264.7 cells). Because OKC-Fs exhibit energy dependency and acquire energy from PKM2-mediated glycolysis, this study generated stable PKM2 knockdown OKC-Fs using shRNAs against PKM2, and found that PD-L1 expression level was decreased by PKM2 knockdown. Furthermore, Spearman rank correlation analysis showed that there was a positive correlation between the immunostaining of PKM2 and PD-L1 in OKC samples. In addition, double-labeling immunofluorescence showed colocalizations between PKM2 and PD-L1 in the fibrous tissue walls of OKCs. In conclusion, PD-L1 in fibroblasts promotes osteoclastogenesis in OKCs, which is regulated by PKM2.
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Affiliation(s)
- Tianshuang Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Rong Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Hao Jiang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Alex Shi
- Department of Biology, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Maosheng Chai
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Congfa Huang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Shaodong Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Wenqun Zhong
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
| | - Yu Cai
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
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3
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Pape J, Bakkalci D, Hosni RA, Simpson BS, Heikinheimo K, Fedele S, Cheema U. RANKL neutralisation prevents osteoclast activation in a human in vitro ameloblastoma-bone model. J Tissue Eng 2022; 13:20417314221140500. [PMID: 36582941 PMCID: PMC9793035 DOI: 10.1177/20417314221140500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/05/2022] [Indexed: 12/25/2022] Open
Abstract
Ameloblastoma is a benign, locally invasive epithelial odontogenic neoplasm of the jaw. Treatment of choice is jaw resection, often resulting in significant morbidity. The aim of this study was to recapitulate ameloblastoma in a completely humanised 3D disease model containing ameloblastoma cells, osteoblasts and activated osteoclasts to investigate the RANKL pathway within the ameloblastoma stromal environment and its response to the RANKL antibody denosumab. In vitro bone was engineered by culturing human osteoblasts (hOB) in a biomimetic, dense collagen type I matrix, resulting in extensive mineral deposits by day 21 forming alizarin red positive bone like nodules throughout the 3D model. Activated TRAP + human osteoclasts were confirmed through the differentiation of human CD14+ monocytes after 10 days within the model. Lastly, the ameloblastoma cell lines AM-1 and AM-3 were incorporated into the 3D model. RANKL release was validated through TACE/ADAM17 activation chemically or through hOB co-culture. Denosumab treatment resulted in decreased osteoclast activation in the presence of hOB and ameloblastoma cells. These findings stress the importance of accurately modelling tumour and stromal populations as a preclinical testing platform.
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Affiliation(s)
- Judith Pape
- UCL Centre for 3D Models of Health and
Disease, Division of Surgery and Interventional Science, University College London,
London, UK
| | - Deniz Bakkalci
- UCL Centre for 3D Models of Health and
Disease, Division of Surgery and Interventional Science, University College London,
London, UK
| | - Rawiya Al Hosni
- UCL Centre for 3D Models of Health and
Disease, Division of Surgery and Interventional Science, University College London,
London, UK
| | - Benjamin S Simpson
- Research Department of Targeted
Intervention, Division of Surgery and Interventional Science, University College
London, London, UK
| | - Kristiina Heikinheimo
- Department of Oral and Maxillofacial
Surgery, Institute of Dentistry, University of Turku and Turku University Hospital,
Turku, Finland
| | - Stefano Fedele
- Eastman Dental Institute, Oral Medicine
Unit, University College London, London, UK
| | - Umber Cheema
- UCL Centre for 3D Models of Health and
Disease, Division of Surgery and Interventional Science, University College London,
London, UK,Umber Cheema, UCL Centre for 3D Models of
Health and Disease, Division of Surgery and Interventional Science, University
College London, Charles Bell House, 43-45 Foley Street, London, W1W 7TS, UK.
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4
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Fuchigami T, Ono Y, Kishida S, Nakamura N. Molecular biological findings of ameloblastoma. JAPANESE DENTAL SCIENCE REVIEW 2021; 57:27-32. [PMID: 33737992 PMCID: PMC7946346 DOI: 10.1016/j.jdsr.2020.12.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 11/17/2020] [Accepted: 12/13/2020] [Indexed: 01/10/2023] Open
Abstract
Ameloblastoma is benign odontogenic tumours that mainly occur in the jawbone. This tumour induces aggressive invasion into the surrounding bone and has a high recurrence rate after surgery. Therefore, mandibular resection is performed in many patients with this tumour, causing aesthetic and functional problems. It is necessary to develop a novel treatment strategy for ameloblastoma, but there are currently no innovative treatments. Although our understanding of the molecular biological mechanisms of ameloblastoma is still insufficient, there have been many recent reports of new molecular biological findings on ameloblastoma. Therefore, bioactive factors that have potential for novel therapeutic methods, such as molecular targeted therapy, have been discovered in ameloblastoma. In this review, we summarize the molecular biological findings of ameloblastoma reported over several decades, focusing on factors involved in invasion into surrounding tissues and disease-specific gene mutations. We also mention the effect of the interaction between tumour cells and stromal components in ameloblastoma on tumour development. Scientific field of dental Science: Oral surgery, Odontogenic tumor, Ameloblastoma.
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Affiliation(s)
- Takao Fuchigami
- Department of Oral and Maxillofacial Surgery, Field of Maxillofacial Rehabilitation Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Yusuke Ono
- Department of Oral and Maxillofacial Surgery, Field of Maxillofacial Rehabilitation Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Shosei Kishida
- Department of Biochemistry and Genetics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Norifumi Nakamura
- Department of Oral and Maxillofacial Surgery, Field of Maxillofacial Rehabilitation Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
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Lima IFP, Matos FRD, Bernardino ÍDM, Santana ITS, Vieira WDA, Blumenberg C, Siqueira WL, Paranhos LR. RANK, RANKL, and OPG in Dentigerous Cyst, Odontogenic Keratocyst, and Ameloblastoma: A Meta-Analysis. Braz Dent J 2021; 32:16-25. [PMID: 33913997 DOI: 10.1590/0103-6440202103387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 08/12/2020] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to assess and compare RANK, RANKL, and OPG immunoexpression in dentigerous cyst, odontogenic keratocyst, and ameloblastoma. The protocol was registered in PROSPERO (CRD42018105543). Seven databases (Embase, Lilacs, LIVIVO, PubMed, Scopus, SciELO, and Web of Science) were the primary search sources and two databases (Open Grey and Open Thesis) partially captured the "grey literature". Only cross sectional studies were included. The JBI Checklist assessed the risk of bias. A meta-analysis with random effects model estimated the values from the OPG and RANKL ratio reported by the individual studies and respective 95% confidence intervals. The heterogeneity among studies was assessed with I2 statistics. Only nine studies met the inclusion criteria and were considered in the analyses. The studies were published from 2008 to 2018. Two studies presented low risk of bias, while seven studies presented moderate risk. The meta-analysis showed the highest OPG>RANKL ratio for dentigerous cyst (ES=43.3%; 95% CI=14.3-74.8) and odontogenic keratocyst (ES=36.8%; 95% CI=18.8-56.7). In contrast, the highest OPG<RANKL ratio was found for ameloblastoma (ES=73.4%; 95% CI=55.4-88.4) and it was higher in the stromal region compared to the odontogenic epithelial region. The results may explain the aggressive potential of ameloblastoma from the higher OPG<RANKL ratio in this tumor, while it was lower for dentigerous cyst and odontogenic keratocyst.
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Affiliation(s)
- Igor Felipe Pereira Lima
- Department of Oral Pathology, School of Dentistry, UFRGS - Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | | | | | - Walbert de Andrade Vieira
- Department of Restorative Dentistry, Endodontics Division, School of Dentistry of Piracicaba, UNICAMP - Universidade Estadual de Campinas, Piracicaba, SP, Brazil
| | - Cauane Blumenberg
- Department of Social Medicine, UFPEL - Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | | | - Luiz Renato Paranhos
- Department of Preventive and Community Dentistry, UFU - Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
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Differentiated Immunohistochemical Expression of Osteoclastogenic Markers in Radicular Cyst, Odontogenic Keratocyst, and Ameloblastoma. Appl Immunohistochem Mol Morphol 2021; 29:352-358. [PMID: 33944809 DOI: 10.1097/pai.0000000000000911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 12/29/2020] [Indexed: 11/25/2022]
Abstract
The aim of this study was to investigate the osteoclastogenesis process by means of immunohistochemical markers for receptor activator of nuclear factor κB ligand (RANKL), osteoprotegerin (OPG), interleukin-6 (IL-6), and cathepsin K (CTSK) antigens in osteolytic lesions of maxillary bones. The sample consisted of 23 radicular cysts (RC), 25 odontogenic keratocysts (OKC), and 25 ameloblastomas (AM). RANKL was statistically higher in RC (49.6±15.2/53.7±18) and OKC (48.6±15.1/51.4±16.8) when compared with AM (37.2±12.5/36.4±13) in the epithelium and connective tissue. OPG was lower in OKC (34.8±18.5) only in connective tissue when compared with RC (44.5±11.2). The expression of RANKL was statistically higher than OPG in RC (epithelium and connective tissue) and OKC (connective tissue). For IL-6, a statistical difference was observed only in the connective tissue between groups, with higher expression in RC (48.2±15) and lower in OKC (22±11.9). The expression of IL-6 was correlated with the intensity of the inflammatory infiltrate. CTSK was statistically higher in AM (34±19) and OKC (29±13.8) compared with RC (19±10.5). According to the results of the present research the bone resorption in cysts and odontogenic tumors occurs through different mechanisms. The ostoclastogenic process in lesions with aggressive clinical behavior, as AM and OKC, seems to be associated with the expression of CTSK. In contrast, lesions with inflammatory etiology, as RC, the expression of IL-6 seems to have an important role in the bone resorption process. The highest expression of RANKL under the expression of OPG also seems to contribute to the growth mechanism of RC and OKC.
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7
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Nik Abdul Ghani NR, Abdul Hamid NF, Karobari MI. Tunnel' radicular cyst and its management with root canal treatment and periapical surgery: A case report. Clin Case Rep 2020; 8:1387-1391. [PMID: 32884760 PMCID: PMC7455399 DOI: 10.1002/ccr3.2942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/29/2020] [Accepted: 03/06/2020] [Indexed: 11/10/2022] Open
Abstract
An untreated root canal infection usually stimulates the development of a radicular cyst. Nonsurgical root canal procedures and periapical surgery followed by placement of bone substitute will promote the healing process of the bony defect.
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Affiliation(s)
| | - Nor Faharina Abdul Hamid
- Centre of Restorative Dentistry StudiesFaculty of DentistryUniversiti Teknologi MaraSungai BulohMalaysia
| | - Mohmed Isaqali Karobari
- Conservative UnitSchool of Dental SciencesHealth CampusUniversiti Sains MalaysiaKubang KerianMalaysia
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8
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Yang C, Jia R, Zuo Q, Zheng Y, Wu Q, Luo B, Lin P, Yin L. microRNA-143-3p regulates odontogenic differentiation of human dental pulp stem cells through regulation of the osteoprotegerin-RANK ligand pathway by targeting RANK. Exp Physiol 2020; 105:876-885. [PMID: 32052500 DOI: 10.1113/ep087992] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 02/10/2020] [Indexed: 12/12/2022]
Abstract
NEW FINDINGS What is the central question of this study? What is the role of miR-143-3p during human dental pulp stem cell (hDPSC) differentiation. What is the main finding and its importance? miR-143-3p negatively regulates receptor activator of nuclear factor-κB (RANK). RANK ligand (RANKL) binds to RANK and stimulates the development of osteoclasts. Osteoprotegerin (OPG) inhibits the interaction between RANK and RANKL. The OPG-RANKL signalling pathway regulates odontogenic differentiation of hDPSCs. ABSTRACT Human dental pulp stem cells (hDPSCs) are capable of differentiating into odontoblast-like cells, which secrete reparative dentin after injury, in which the role of microRNA-143-3p (miR-143-3p) has been identified. Therefore, we investigated the mechanism by which miR-143-3p influences odontoblastic differentiation of hDPSCs. The relationship between miR-143-3p and receptor activator of nuclear factor-κB (RANK) was initially identified by bioinformatics prediction and further verified by dual luciferase reporter gene assay. Gain- and loss-of-function analysis with miR-143-3p mimic and miR-143-3p inhibitor was subsequently conducted. Dentin sialophosphoprotein (DSPP), bone sialoprotein (BSP), alkaline phosphatase (ALP), osteocalcin (OCN) and osteopontin (OPN) mRNA levels were then evaluated by RT-qPCR. Osteoprotegerin (OPG), RANK ligand (RANKL), nuclear factor-κB (NF-κB) p65 protein levels and the extent of NF-κB p65 phosphorylation were examined by western blot analysis. Alizarin red staining was performed to assess the mineralization of hDPSCs. Cell apoptosis and cell cycle distribution were determined using flow cytometry. During odontoblastic differentiation of hDPSC, miR-143-3p had high expression, but RANK expression was low. miR-143-3p was found to target RANK, and its inhibition enhanced mineralization and hDPSC apoptosis, while blocking cell cycle entry. At the same time, miR-143-3p inhibition elevated the extent of NF-κB p65 phosphorylation, as well as the expression of RANK, RANKL, DSPP, BSP, ALP, OCN and OPN, while decreasing the OPG level. Silencing RANK had opposite effects on these markers. miR-143-3p regulates odontoblastic differentiation of hDPSCs via the OPG-RANKL pathway that targets RANK. The elucidation of the mechanisms of odontogenic differentiation of hDPSCs may contribute to the development of effective dental pulp repair therapies for the clinical setting.
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Affiliation(s)
- Changwei Yang
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| | - Ru Jia
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710004, P.R. China.,Department of Prosthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710004, P.R. China
| | - Qiliang Zuo
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| | - Yanfen Zheng
- China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China.,Department of Mucous Membrane, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China
| | - Qianju Wu
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| | - Bizhu Luo
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| | - Pingting Lin
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| | - Lu Yin
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
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Yang JW, Jiang JH, Wang HC, Li CY. The extra domain A of fibronectin facilitates osteoclastogenesis in radicular cysts through vascular endothelial growth factor. Int Endod J 2019; 53:478-491. [PMID: 31654436 DOI: 10.1111/iej.13241] [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: 01/24/2019] [Accepted: 10/24/2019] [Indexed: 11/28/2022]
Abstract
AIM To analyse the effects of the alternatively spliced fibronectin (FN) gene and its isoforms on osteoclastogenesis in radicular cysts. METHODOLOGY Specimens of radicular cysts were collected surgically from 22 patients whose radiolucent periapical areas were measured on digital panoramic radiographs before surgery. The associations between the radiolucent areas and FN isoforms, vascular endothelial growth factor (VEGF) expression or micro-vessel density, as well as the relationships amongst them, were analysed by immunohistochemical staining using the antibodies IST-9, BC-1, P1F11, VEGF and CD34. Fibroblasts isolated from those specimens were used to induce Trap + MNCs, and the effects of induction were assessed by blocking FN containing extra domain A (EDA + FN), COX-2 or VEGF in vitro. The effects of EDA exon knockout using CRISPR/Cas system were also assessed. Quantitative PCR was used to analyse relative expression of FN isoforms and osteoclastogenic genes. Data were analysed using linear regression, Spearman's rank correlation analysis, chi-square test and Student's t-test; P < 0.05 was considered significant. RESULTS Micro-vessel density and EDA + FN staining were positively associated with the size of radiolucent periapical areas (mm2 ; P < 0.05), consistent with a positive association between Trap + MNCs and VEGF expression in fibroblasts (P < 0.05). Blocking the interaction between EDA + FN and fibroblasts inhibited Trap + MNC formation. In addition, EDA exon knockout decreased VEGF expression and inhibited Trap + MNC formation to the extent of blocking VEGF by bevacizumab, but osteoclastogenic induction was restored by recombinant VEGF. Using retrospective clinicopathological data, VEGF staining was shown to be positively associated with EDA + FN staining, micro-vessel density and the size of radiolucent areas (P < 0.05). CONCLUSION In fibrous capsules of radicular cysts, the alternatively spliced isoform EDA + FN generated by fibroblasts stimulated VEGF expression via an autocrine effect and then facilitated osteoclastogenesis. Both blockage of VEGF and EDA exon knockout could be used to inhibit bone destruction.
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Affiliation(s)
- J W Yang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China.,Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health, Beijing, China.,Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - J H Jiang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - H C Wang
- Department of Pathology, School & Hospital of Stomatology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Tongji University, Shanghai, China
| | - C Y Li
- The Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
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10
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Liu C, Wang H. The fibroblast of radicular cyst facilitate osteoclastogenesis via the autocrine of Fibronectin containing extra domain A. Oral Dis 2019; 25:1136-1146. [PMID: 30770599 DOI: 10.1111/odi.13064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 01/23/2019] [Accepted: 02/07/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Chun‐yan Liu
- Department of Endodontics, School & Hospital of Stomatology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration Tongji University Shanghai China
| | - Hai‐Cheng Wang
- Department of Pathology, School & Hospital of Stomatology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration Tongji University Shanghai China
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11
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Shen S, Wang W, Yang C, Xu B, Zeng L, Qian Y. Effect of technetium-99 conjugated with methylene diphosphonate ( 99 Tc-MDP) on OPG/RANKL/RANK system in vitro. J Oral Pathol Med 2018; 48:129-135. [PMID: 30421571 DOI: 10.1111/jop.12801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 10/29/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND RANKL and RANK play an important role in jaw resorption during the development of the ameloblastomas. Therefore, the aim of this study was to explore the effect of 99 Tc-MDP on OPG/RANKL/RANK system on RAW264.7 and MC3T3-E1 cell lines in vitro and provide the theoretical basis for the clinical treatment of the jaw ameloblastoma. METHODS Different concentrations of 99 Tc-MDP were used to treat RAW264.7 and MC3T3-E1 cell lines. The cell proliferative inhibition rate was analyzed by CCK-8. Cell apoptosis and cell cycle were detected by flow cytometry. Western blot was used to detect the expression of OPG, RANKL, and RANK. RESULTS Treatment of RAW264.7 cell lines with different concentrations of 99 Tc-MDP had inhibitory effects and decreased the expression of RANK protein. The cell proliferation of 99 Tc-MDP on MC3T3-E1 cell lines was stronger at 48 hours than at 24 hours except for 100 μg/mL concentration group. Compared with the concentration of 0.01 μg/mL, the treatment of MC3T3-E1 cells with 100 μg/mL 99 Tc-MDP showed that the cell proliferative effect decreased at 24 hours and 48 hours (P < 0.05). After treatment with 0.01 μg/mL 99 Tc-MDP, the expression of OPG in MC3T3-E1 cells was significantly increased (P < 0.05). Compared with 0.01 μg/mL, the expression of RANKL was decreased after treatment with 100 μg/mL 99 Tc-MDP (P < 0.05). CONCLUSION 99 Tc-MDP can induce apoptosis of RAW264.7 cells and inhibit the expression of RANK protein. The effect of 0.01 μg/mL of low concentration of 99 Tc-MDP can promote the proliferation of MC3T3-E1 cells and increase the expression of OPG and RANKL protein. 99 Tc-MDP may have adjuvant therapeutic effects on the treatment of jaw ameloblastoma.
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Affiliation(s)
- Shiying Shen
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatology Hospital of Kunming Medical University, Kunming, China.,Department of Stomatology, Lincang People's Hospital, Lincang, China
| | - Weihong Wang
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatology Hospital of Kunming Medical University, Kunming, China
| | - Chun Yang
- Department of Oral Anatomy and Pathology of Kunming Medical University, Kunming, China
| | - Biao Xu
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatology Hospital of Kunming Medical University, Kunming, China
| | - Ling Zeng
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatology Hospital of Kunming Medical University, Kunming, China
| | - Yemei Qian
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatology Hospital of Kunming Medical University, Kunming, China
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12
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Jaafari-Ashkavandi Z, Tuyeh AA, Assar S. Immunohistochemical Expression of CDC7 in Dentigerous Cyst, Odontogenic Keratocyst and Radicular Cyst. ACTA MEDICA (HRADEC KRÁLOVÉ) 2018; 61:17-21. [PMID: 30012245 DOI: 10.14712/18059694.2018.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
CDC7 is a serine/threonine kinase which has an essential role in initiation of DNA proliferation and S phase. It increases the invasion and proliferation in many pathologic lesions. This study aimed to evaluate the expression of CDC7 in the most common odontogenic cysts. We evaluated 17 dentigerous cysts, 18 odontogenic keratocysts (OKC) and 13 radicular cysts immunohistochemically. The mean expression of CDC7 was analyzed using ANOVA and Post-HOC methods. All specimens revealed CDC7 expression. Higher expression of CDC7 in OKC and radicular cyst was shown in comparison to dentigerous cyst (P < 0.001), while radicular cyst and OKC groups showed no difference in CDC7 expression (P = 0.738). The high expression of CDC7 in OKC suggests that this protein could be related to the higher proliferation rate and invasiveness of OKC. On the other hand, the higher CDC7 expression in radicular cyst may simply be related to inflammation as this cyst is neither aggressive nor invasive.
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Affiliation(s)
- Zohreh Jaafari-Ashkavandi
- Department of Oral & Maxillofacial Pathology, Shiraz Dental School, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Sepideh Assar
- Department of Oral & Maxillofacial Pathology, Hormozgan Dental School, Hormozgan University of Medical Sciences, Hormozgan, Bandar-Abbas, Iran.
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13
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González-Galván MC, Mosqueda-Taylor A, Bologna-Molina R, Setien-Olarra A, Marichalar-Mendia X, Aguirre-Urizar JM. Evaluation of the osteoclastogenic process associated with RANK / RANK-L / OPG in odontogenic myxomas. Med Oral Patol Oral Cir Bucal 2018; 23:e315-e319. [PMID: 29680857 PMCID: PMC5945246 DOI: 10.4317/medoral.22372] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 03/24/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Odontogenic myxoma (OM) is a benign intraosseous neoplasm that exhibits local aggressiveness and high recurrence rates. Osteoclastogenesis is an important phenomenon in the tumor growth of maxillary neoplasms. RANK (Receptor Activator of Nuclear Factor κappa B) is the signaling receptor of RANK-L (Receptor activator of nuclear factor kappa-Β ligand) that activates the osteoclasts. OPG (osteoprotegerin) is a decoy receptor for RANK-L that inhibits pro-osteoclastogenesis. The RANK / RANKL / OPG system participates in the regulation of osteolytic activity under normal conditions, and its alteration has been associated with greater bone destruction, and also with tumor growth. OBJECTIVES To analyze the immunohistochemical expression of OPG, RANK and RANK-L proteins in odontogenic myxomas (OMs) and their relationship with the tumor size. MATERIAL AND METHODS Eighteen OMs, 4 small (<3 cm) and 14 large (> 3cm) and 18 dental follicles (DF) that were included as control were studied by means of standard immunohistochemical procedure with RANK, RANKL and OPG antibodies. For the evaluation, 5 fields (40x) of representative areas of OM and DF were selected where the expression of each antibody was determined. Descriptive and comparative statistical analyses were performed with the obtained data. RESULTS There are significant differences in the expression of RANK in OM samples as compared to DF (p = 0.022) and among the OMSs and OMLs (p = 0.032). Also a strong association is recognized in the expression of RANK-L and OPG in OM samples. CONCLUSIONS Activation of the RANK / RANK-L / OPG triad seems to be involved in the mechanisms of bone balance and destruction, as well as associated with tumor growth in odontogenic myxomas.
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Affiliation(s)
- M-C González-Galván
- Departamento de Estomatologia II, Universidad del País Vasco UPV/EHU, Barrio Sarriena s/n, Leioa 48940, Bizkaia, Spain,
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14
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Al-Rawi NH, Al-Siraj AK, Majeed AH. Comparison of osteoclastogenesis and local invasiveness of ameloblastoma and keratocystic odontogenic tumor. Eur J Dent 2018; 12:36-42. [PMID: 29657523 PMCID: PMC5883474 DOI: 10.4103/ejd.ejd_54_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Objectives: The aim of this study was to compare the expression of receptor-activated nuclear factor kappa B (RANK) with its ligand (RANKL) and matrix metalloproteinase-2 (MMP2) in solid/multicystic ameloblastomas (ABs) and keratocystic odontogenic tumors (KOTs). Materials and Methods: The expression of MMP2, RANK, and RANKL molecules was evaluated in 13 ABs and 14 KOTs by immunohistochemistry. The expressions were calculated in the odontogenic epithelial cells as well as the stromal cells. Results: Odontogenic epithelia of AB expressed MMP2, RANK, and RANKL significantly higher than that of KOTs (P < 0.05). The expression of MMP2, RANK, and RANKL was highest in plexiform subtype (79.9%, 81.08%, and 65.1%, respectively). KOTs without daughter epithelia nests expressed both MMP2 and RANK the least (56.06% and 47.5%, respectively). Stromal cells, on the other hand, expressed similar MMP2 pattern in odontogenic epithelia of both AB and KOT. RANKL was expressed weaker in the stromal cells of both lesions. Conclusion: Invasive biological and osteolytic behaviors of both lesions were evaluated in this study. It was found to be more in AB than keratocystic odontogenic. A significant expression of MMP2, RANK, and RANKL in both KOTs associated with microcyst and plexiform type AB as well.
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Affiliation(s)
- Natheer H Al-Rawi
- Department of Oral and Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Ammar K Al-Siraj
- Department of Oral Diagnosis, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Ahlam H Majeed
- Department of Oral Diagnosis, College of Dentistry, University of Baghdad, Baghdad, Iraq
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15
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Kaczmarzyk T, Kisielowski K, Koszowski R, Rynkiewicz M, Gawełek E, Babiuch K, Bednarczyk A, Drozdzowska B. Investigation of clinicopathological parameters and expression of COX-2, bcl-2, PCNA, and p53 in primary and recurrent sporadic odontogenic keratocysts. Clin Oral Investig 2018; 22:3097-3106. [PMID: 29508125 PMCID: PMC6224022 DOI: 10.1007/s00784-018-2400-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 02/22/2018] [Indexed: 11/15/2022]
Abstract
Objectives Odontogenic keratocyst (OKC) presents considerable variation in aggressiveness and propensity for recurrence, yet hitherto, no explicit clinicopathological features have been determined to clearly demonstrate the potential for relapse. This retrospective study aims to investigate the prognostic relevance of various clinicopathological features as well as immunoexpression of COX-2, bcl-2, PCNA, and p53 in sporadic OKC. Materials and methods Among 41 patients with OKC treated by enucleation, the frequency of recurrence for various clinicopathological features as well as immunoexpression for COX-2, bcl-2, PCNA, and p53 was evaluated. Results The mean follow-up was 8.49 years, and recurrences were ascertained in 29.27% of cases. We found significant differences between recurrent and non-recurrent cysts in terms of multilocularity (P = 0.029), cortical perforation (P = 0.001), and lesion size (P < 0.001). Hazard risk for the recurrence was 3.362 (95% CI 1.066–10.598) for multilocular cysts, 7.801 (95% CI 2.1–28.985) for evidence of cortical perforation, and 1.004 (1.002–1.006) for 1 mm2 of lesion size on panoramic radiographs. We also found that immunoexpression of PCNA significantly correlates with the radiographic evidence of cortical perforation (P = 0.048) and that there is significant positive correlation between expression of COX-2 and bcl-2 (P = 0.001) as well as significant negative correlation between immunoexpression of COX-2 and age (P = 0.002). None of the other analyzed factors were associated with the recurrence. Conclusions Larger size, multilocularity, and cortical perforation in sporadic OKC may be correlated with the relapse. Clinical relevance Immunohistochemical analyses of COX-2, bcl-2, PCNA, and p53 lack prognostic utility in sporadic OKC.
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Affiliation(s)
- Tomasz Kaczmarzyk
- Department of Oral Surgery, Institute of Dentistry, Medical College, Jagiellonian University, ul. Montelupich 4, 31-155, Kraków, Poland. .,Chair of Periodontology and Clinical Pathology of the Oral Cavity, Institute of Dentistry, Medical College, Jagiellonian University, ul. Montelupich 4, 31-155, Kraków, Poland.
| | - Konrad Kisielowski
- Department of Oral Surgery, Institute of Dentistry, Medical College, Jagiellonian University, ul. Montelupich 4, 31-155, Kraków, Poland
| | - Rafał Koszowski
- Academic Center of Dentistry and Specialized Medicine, Plac Akademicki 17, 41-902, Bytom, Poland
| | - Magdalena Rynkiewicz
- Department of Pathomorphology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, ul. 3 Maja 13/15, 41-800, Zabrze, Poland
| | - Ewa Gawełek
- Department of Pathomorphology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, ul. 3 Maja 13/15, 41-800, Zabrze, Poland
| | - Karolina Babiuch
- Chair of Periodontology and Clinical Pathology of the Oral Cavity, Institute of Dentistry, Medical College, Jagiellonian University, ul. Montelupich 4, 31-155, Kraków, Poland
| | - Anna Bednarczyk
- Department of Oral Surgery, Institute of Dentistry, Medical College, Jagiellonian University, ul. Montelupich 4, 31-155, Kraków, Poland
| | - Bogna Drozdzowska
- Department of Pathomorphology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, ul. 3 Maja 13/15, 41-800, Zabrze, Poland
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16
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Ilic B, Nikolic N, Andric M, Jelovac D, Milicic B, Jozic T, Krstic S, Milasin J. TNF-α (−308G>A) and TNF-R1 (36A>G) single nucleotide polymorphisms are strong risk factors for odontogenic keratocystic tumor development. J Oral Pathol Med 2017; 46:292-296. [DOI: 10.1111/jop.12564] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Branislav Ilic
- Clinic for Oral Surgery; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - Nadja Nikolic
- Department of Human Genetics; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - Miroslav Andric
- Clinic for Oral Surgery; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - Drago Jelovac
- Clinic for Maxillofacial Surgery; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - Biljana Milicic
- Department of Statistics; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - Tanja Jozic
- School of Medicine; University of Belgrade; Belgrade Serbia
| | - Slobodan Krstic
- School of Medicine; University of Belgrade; Belgrade Serbia
- Clinic for Emergency Surgery; Emergency Center; Clinical Centre of Serbia; Belgrade Serbia
| | - Jelena Milasin
- Department of Human Genetics; School of Dental Medicine; University of Belgrade; Belgrade Serbia
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17
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Bernardi L, Visioli F, Nör C, Rados PV. Radicular Cyst: An Update of the Biological Factors Related to Lining Epithelium. J Endod 2015; 41:1951-61. [PMID: 26603778 DOI: 10.1016/j.joen.2015.08.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 08/16/2015] [Accepted: 08/30/2015] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Radicular cysts are common lesions in daily dentistry practice. However, the mechanisms related to epithelial lining formation and cavity growth are not fully understood. Therefore, the purpose of this article was to review the biological factors implicated in these process. METHODS Literature was selected through a search of PubMed electronic databases matching the following key words in the title or abstract: "cyst" OR "granuloma" OR "abscess" AND "radicular" OR "apical" OR "periapical" AND "epithelium" OR "epithelial" OR "epithelial lining." The PubMed database was searched for articles published between 1975 and 2014. Only English language was applied to the search. RESULTS The literature search yielded a total of 187 articles. After duplicate references were discarded, a subsequent search at the title and abstract level revealed 42 articles for full-text reading. The articles were categorized into 5 main subtopics: (1) cell proliferation, cell cycle, and apoptosis; (2) extracellular matrix constituents; (3) inflammatory components; (4) bone metabolic factors and; (5) others. These subtopics described the characteristics of radicular cysts focusing on the epithelial tissue effects. CONCLUSIONS Several factors from different sources (epithelial cells, stromal cells, extracellular matrix, and bone matrix) were implicated on apical cyst pathogenesis. Probably a combination of many factors involving an epithelial-stromal interaction is responsible for the sustenance and growth of apical cysts.
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Affiliation(s)
- Lisiane Bernardi
- Basic Research Center, Dentistry School, Federal University of Rio Grande do Sul, Rio Grande do Sul, Brazil
| | - Fernanda Visioli
- Department of Oral Pathology, Dentistry School, Federal University of Rio Grande do Sul, Rio Grande do Sul, Brazil
| | - Carolina Nör
- University Hospital Research Center, Federal University of Rio Grande do Sul, Rio Grande do Sul, Brazil
| | - Pantelis Varvaki Rados
- Department of Oral Pathology, Dentistry School, Federal University of Rio Grande do Sul, Rio Grande do Sul, Brazil.
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18
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Chen AP, Wang B, Zhong F, Song GZ, Song HF, Yu K, Wang HB, Jiang ZH. Expression levels of receptor activator of nuclear factor-κB ligand and osteoprotegerin are associated with middle ear cholesteatoma risk. Acta Otolaryngol 2015; 135:655-66. [PMID: 25812671 DOI: 10.3109/00016489.2015.1011789] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONCLUSION Overexpression of receptor activator of nuclear factor-κB ligand (RANKL) and low expression of osteoprotegerin (OPG) are typical features in middle ear cholesteatoma patients. The altered RANKL/OPG protein ratio suggests that alterations in the RANKL-OPG pathway may be major factors in the pathogenesis of middle ear cholesteatoma. OBJECTIVE Our meta-analysis explored the contribution of one important cytokine pathway, the RANKL and OPG pathway, in the development of middle ear cholesteatoma. METHODS We screened Embase, the Cochrane Library, CISCOM, CINAHL, Google Scholar, China BioMedicine, China National Knowledge Infrastructure, PubMed, and Web of Science for relevant articles. RANKL expression and ratio of RANKL/OPG were analyzed using Comprehensive Meta-Analysis Version 2 software. RESULTS The electronic literature search identified five studies that contained information on the correlation of RANKL and OPG expression with middle ear cholesteatoma. Increased RANKL expression positively correlated with middle ear cholesteatoma, while OPG expression showed an inverse association (p < 0.05). The ratio of RANKL/OPG in middle ear cholesteatoma cases was higher than in healthy controls, indicating that our observations are applicable to each individual case. Subgroup analysis based on country of study revealed that OPG levels decreased in China and Korea, and high RANKL expression was found in Poland, China, and Korea (all p < 0.05).
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Affiliation(s)
- Ai-Ping Chen
- Department of Otorhinolaryngology-Head and Neck Surgery, Provincial Hospital Affiliated to Shandong University , Ji'nan
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19
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Shao J, Zhang Y, Yang T, Qi J, Zhang L, Deng L. HIF-1α disturbs osteoblasts and osteoclasts coupling in bone remodeling by up-regulating OPG expression. In Vitro Cell Dev Biol Anim 2015; 51:808-14. [PMID: 25859979 DOI: 10.1007/s11626-015-9895-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 03/23/2015] [Indexed: 12/19/2022]
Abstract
Hypoxia-inducible factor 1α (HIF-1α) is one of the master regulators of hypoxia reactions, playing an important role in bone modeling, remodeling, and homeostasis. And overexpression of HIF-1α in mature osteoblasts through conditional deletion of the von Hippel-Lindau (VHL) gene profoundly increases angiogenesis and osteogenesis. Studies showed that mice with osteoblasts lacking Vhl had a high level of Hif-1α and increased bone mass and density. On the contrary, Hif-1α conditional knockout mice had decreased bone mass and density. Our in vitro study showed that osteoprotegerin (OPG), an essential regulator of osteoclastic activity, can be upregulated by HIF-1α and in turn downregulate the resorption activity of osteoclasts. We showed that HIF-1α may directly bind to the upstream site of OPG and enhance its expression. Our study suggested that a novel mechanism, which works via OPG signaling, may mediate the function of HIF-1α in bone remodeling.
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Affiliation(s)
- Jin Shao
- Shanghai Key Laboratory for Bone and Joint Disease, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Orthopaedics, Shanghai Pudong New Area Gongli Hospital/Clinical School of the Second Military Medical University, Shanghai, China
| | - Yan Zhang
- Department of Orthopaedics, Shanghai Pudong New Area Gongli Hospital/Clinical School of the Second Military Medical University, Shanghai, China
| | - Tieyi Yang
- Department of Orthopaedics, Shanghai Pudong New Area Gongli Hospital/Clinical School of the Second Military Medical University, Shanghai, China.
| | - Jin Qi
- Shanghai Key Laboratory for Bone and Joint Disease, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lianfang Zhang
- Shanghai Key Laboratory for Bone and Joint Disease, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lianfu Deng
- Shanghai Key Laboratory for Bone and Joint Disease, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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20
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Di Nisio C, Zizzari VL, Zara S, Falconi M, Teti G, Tetè G, Nori A, Zavaglia V, Cataldi A. RANK/RANKL/OPG signaling pathways in necrotic jaw bone from bisphosphonate-treated subjects. Eur J Histochem 2015; 59:2455. [PMID: 25820558 PMCID: PMC4378212 DOI: 10.4081/ejh.2015.2455] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 12/23/2022] Open
Abstract
Osteonecrosis of the jaw (ONJ) is a chronic complication affecting long-term bisphosphonate-treated subjects, recognized by non-healing exposed bone in the maxillofacial region. The pathophysiological mechanism underlying ONJ has not been fully elucidated. The aim of the present study was to investigate the role of RANK/RANKL/OPG signaling pathway and, in parallel, to evaluate angiogenic and matrix mineralization processes in jaw bone necrotic samples obtained from bisphosphonate-treated subjects with established ONJ. Necrotic bone samples and native bone samples were processed for Light and Field Emission in Lens Scanning Electron Microscope (FEISEM) analyses, for Real-Time RT-PCR to evaluate the gene expression of TNFRSF11A (RANK), TNFSF11 (RANKL), and TNFSF11B (OPG) and for immunohistochemical analyses of VEGF and BSP expression. Morphological analyses performed by Light microscope and FEISEM show empty osteocytic lacunae and alteration of lamellar organization with degradation of the mineralized bone matrix in necrotic bone samples. A significant increase in TNFRSF11A, TNFSF11, TRAF6 and NFAT2 gene expression, and a reduction of TNFSF11B gene transcription level compared is also showed in necrotic bone compared to control samples. No significant difference of VEGF expression is evidenced, while lower BSP expression in necrotic bone compared to healthy samples is found. Even if the pathogenesis of bisphosphonate-associated ONJ remains unknown, a link between oral pathogens and its development seems to exist. We suppose lipopolysaccharide produced by bacteria colonizing and infecting necrotic bone and the surrounding viable area could trigger RANK/RANKL/OPG signaling pathway and, in this context, osteoclasts activation could be considered as a protective strategy carried out by the host bone tissue to delimitate the necrotic area and to counteract infection.
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21
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Eren E, Ellidag HY, Aydin O, Yılmaz N. HDL-Associated Paraoxonase 1 as a Bridge between Postmenopausal Osteoporosis and Cardiovascular Disease. Chonnam Med J 2014; 50:75-81. [PMID: 25568841 PMCID: PMC4276794 DOI: 10.4068/cmj.2014.50.3.75] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Revised: 06/11/2014] [Accepted: 06/12/2014] [Indexed: 12/17/2022] Open
Abstract
The association of postmenopausal osteoporosis (PMOP) with both atherosclerosis and vascular/valvular calcification is well known. Recently, ample evidence has suggested a common etiologic factor, namely, reduced HDL-associated paraoxonase 1 (PON1) activity, as a causative factor in the development of PMOP and cardiovascular disease (CVD). This common etiologic factor not only contributes to atherosclerotic diseases but also to PMOP following an almost identical mechanism including dysfunctional HDL and lipid oxidation. According to recent studies, lipid oxidation might improve osteoblastic transformation of vascular cells and obstruct such transformation in bone cells. The primary objective of this current review was to summarize the evidence revealing the role of HDL-associated PON1 enzyme in PMOP. Additionally, the review aimed to address some of the subjects that need further investigation in order to define whether hyperhomocysteinemia and sensitivity to lipid oxidation may be risk factors for PMOP.
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Affiliation(s)
- Esin Eren
- Biochemistry Laboratory, Antalya Public Health Center of Ministry of Health, Antalya, Turkey
| | - Hamit Yasar Ellidag
- Central Laboratories of Antalya Education and Research Hospital of Ministry of Health, Antalya, Turkey
| | - Ozgur Aydin
- Biochemistry Laboratory, Maternity and Children's Hospital, Batman, Turkey
| | - Necat Yılmaz
- Central Laboratories of Antalya Education and Research Hospital of Ministry of Health, Antalya, Turkey
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22
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Siar CH, Tsujigiwa H, Ishak I, Hussin NM, Nagatsuka H, Ng KH. RANK, RANKL, and OPG in recurrent solid/multicystic ameloblastoma: their distribution patterns and biologic significance. Oral Surg Oral Med Oral Pathol Oral Radiol 2014; 119:83-91. [PMID: 25446507 DOI: 10.1016/j.oooo.2014.09.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 08/19/2014] [Accepted: 09/15/2014] [Indexed: 10/24/2022]
Abstract
OBJECTIVES To determine the distribution patterns of bone resorption regulators, receptor activator of nuclear factor κ-B (RANK), RANK ligand (RANKL), and osteoprotegerin (OPG) in recurrent ameloblastoma (RAs) and to clarify their impact on the biologic behavior of these neoplasms. MATERIALS AND METHODS Fifteen paraffin-embedded RA cases were subjected to immunohistochemistry for expression of RANK, RANKL, and OPG. RESULTS The RANK-RANKL-OPG triad was heterogeneously detected in RA samples. RANK, essential for osteoclast differentiation, was strongly expressed in tumoral epithelium. Conversely, RANKL, an osteoclast activator, was markedly underexpressed, and protein localization was predominantly stromal. OPG, an osteoclastogenesis inhibitory factor, was detected in neoplastic epithelium more than in stroma, suggesting functional inactivation of RANKL. Most RA (n = 12/15; 80%) exhibited a bimolecular spatial expression pattern, the most common being RANK-positive/OPG-positive (n = 8/15; 53.3%). All three proteins showed no significant correlation with the clinical/histopathologic parameters in RA patients (P > .05). CONCLUSIONS The RANK(+)/RANKL(low/-)/OPG(+) phenotype observed in RA suggests an altered local bone metabolism characterized by low bone resorptive activity in these recurrent tumors.
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Affiliation(s)
- Chong Huat Siar
- Professor of Oral Pathology and Oral Medicine, Department of Oro-Maxillofacial Surgical and Medical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia.
| | - Hidetsugu Tsujigiwa
- Professor of Histopathology, Laboratory of Histopathology, Department of Life Science, Faculty of Science, Okayama University of Science, Okayama, Japan
| | - Ismadi Ishak
- Senior Lecturer and Consultant Oral and Maxillofacial Surgeon, Department of Oro-Maxillofacial Surgical and Medical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Nurmawarnis Mat Hussin
- Master of Clinical Dentistry (Oral Medicine and Oral Pathology) Resident, Department of Oro-Maxillofacial Surgical and Medical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Hitoshi Nagatsuka
- Professor of Oral Pathology and Medicine, Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kok Han Ng
- Former Director and Senior Consultant Oral Pathologist, Unit of Stomatology, Institute for Medical Research, Jalan Pahang, Kuala Lumpur, Malaysia
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23
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de Matos FR, de Moraes M, das Neves Silva EB, Galvão HC, de Almeida Freitas R. Immunohistochemical Detection of Receptor Activator Nuclear κB Ligand and Osteoprotegerin in Odontogenic Cysts and Tumors. J Oral Maxillofac Surg 2013; 71:1886-92. [DOI: 10.1016/j.joms.2013.05.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 05/22/2013] [Accepted: 05/23/2013] [Indexed: 11/15/2022]
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24
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Lee SK, Kim YS. Current concepts and occurrence of epithelial odontogenic tumors: I. Ameloblastoma and adenomatoid odontogenic tumor. KOREAN JOURNAL OF PATHOLOGY 2013; 47:191-202. [PMID: 23837011 PMCID: PMC3701814 DOI: 10.4132/koreanjpathol.2013.47.3.191] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 04/25/2013] [Indexed: 01/10/2023]
Abstract
Ameloblastomas and adenomatoid odontogenic tumors (AOTs) are common epithelial tumors of odontogenic origin. Ameloblastomas are clinico-pathologically classified into solid/multicystic, unicystic, desmoplastic, and peripheral types, and also divided into follicular, plexiform, acanthomatous, granular types, etc., based on their histological features. Craniopharyngiomas, derived from the remnants of Rathke's pouch or a misplaced enamel organ, are also comparable to the odontogenic tumors. The malignant transformation of ameloblastomas results in the formation of ameloblastic carcinomas and malignant ameloblastomas depending on cytological dysplasia and metastasis, respectively. AOTs are classified into follicular, extrafollicular, and peripheral types. Ameloblastomas are common, have an aggressive behavior and recurrent course, and are rarely metastatic, while AOTs are hamartomatous benign lesions derived from the complex system of the dental lamina or its remnants. With advances in the elucidation of molecular signaling mechanisms in cells, the cytodifferentiation of epithelial tumor cells in ameloblastomas and AOTs can be identified using different biomarkers. Therefore, it is suggested that comprehensive pathological observation including molecular genetic information can provide a more reliable differential diagnosis for the propagation and prognosis of ameloblastomas and AOTs. This study aimed to review the current concepts of ameloblastomas and AOTs and to discuss their clinico-pathological features relevant to tumorigenesis and prognosis.
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Affiliation(s)
- Suk Keun Lee
- Department of Oral Pathology, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea
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25
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Duvina M, Barbato L, Brancato L, Rose GD, Amunni F, Tonelli P. Biochemical markers as predictors of bone remodelling in dental disorders: a narrative description of literature. CLINICAL CASES IN MINERAL AND BONE METABOLISM : THE OFFICIAL JOURNAL OF THE ITALIAN SOCIETY OF OSTEOPOROSIS, MINERAL METABOLISM, AND SKELETAL DISEASES 2012; 9:100-106. [PMID: 23087720 PMCID: PMC3476527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Osteoporosis is a systemic disease in which the skeletal condition is characterized by a decreased mass of normally mineralized bone, due to an augmentation of bone resorption processes. Bone biomarkers serum are used for the diagnosis. On the other hand the main cause of the resorption in the bone jaws are periodontitis, inflammatory cysts, developmental cysts, odontogenic neoplasms. Periodontal diseases can be localized to a single site of the jaws or can affect all the teeth, with a massive bone resorption. The cysts are classified in developmental and inflammatory. They caused a local bone resorption in the jaws. Keratocystic odontogenic tumor produces a large bone resorption for its local aggressive nature. Their diagnosis is clinical and radiological.The aim of our review is to find a correlation between bone biomarkers serum and periodontitis, inflammatory cists, developmental cysts, odontogenetic neoplasms.The RANK/RANKL/OPG system is the most studied not only in osteoporosis but also in the periodontitis, inflammatory cysts, developmental cysts, odontogenic neoplasms. In the last years osteoimmunology was used to study the periodontal disease progression, because the immunity cells start the bone resorption processes.A lot of studies analyze the biomarkers present in the biofluids, as saliva and gingival crevicular fluid, but not the correlation with serum biomarkers.Future studies must be organized to deepen the correlation between bone biomarkers and bone jaws resorption and to allow diagnosis and prognosis of periodontitis, inflammatory cysts, developmental cysts, odontogenic neoplasms.
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Affiliation(s)
| | | | | | | | | | - Paolo Tonelli
- Address for correspondence: Paolo Tonelli, DMD/MD, Department of Public Health, Section of Dentistry, Viale Morgagni 85, 50135 Florence, Italy, Phone: +39 055 415598/411798 - Fax: +39 055 411798, E-mail:
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