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Wang H, Wang R, Yang J, Feng Y, Xu S, Pei QG. Interactions of Fibroblast Subtypes Influence Osteoclastogenesis and Alveolar Bone Destruction in Periodontitis. J Inflamm Res 2023; 16:3143-3156. [PMID: 37520667 PMCID: PMC10386858 DOI: 10.2147/jir.s418099] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/18/2023] [Indexed: 08/01/2023] Open
Abstract
Background To analyze the fibroblasts subtypes in the gingival tissues of healthy controls, gingivitis and periodontitis patients, as well as the effects of interaction between subtypes on alveolar bone destruction. Methods Gingival tissues were divided into three groups according to clinical and radiographic examination, and the immunostaining of EDA+FN was assessed. Fibroblasts from gingiva developed colony formation units (CFUs) and induced Trap+MNCs. The expression of osteoclastogenesis-related genes was assessed by real-time PCR. Variances in the gene profiles of CFUs were identified by principal component analysis, and cluster analysis divided CFUs into subtypes. The induction of Trap+MNCs and gene expression were compared among individual or cocultured subtypes. The fibroblast subtypes exerted critical effect on Trap+MNCs formation were selected and edited by CRISPR/Cas to investigate the influence on osteoclastogenesis in the periodontitis in mice. Results Most periodontitis samples exhibited intensive EDA+FN staining (P < 0.05), and these fibroblasts also induced most Trap+MNCs among three groups; consistently, fibroblasts from periodontitis highly expressed genes facilitating osteoclastogenesis. According to gene profiles and osteoclastogenic induction, four clusters of CFUs were identified. The proportion of clusters was significantly different (P < 0.05) among three groups, and their interaction influenced osteoclastogenic induction. Although Cluster 4 induced less osteoclasts, it enhanced the effects of Clusters 1 and 3 on Trap+MNCs formation (P < 0.05). EDA knockout in Cluster 4 abrogated this promotion (P < 0.05), and decreased osteoclasts and alveolar bone destruction in experimental periodontitis (P < 0.05). Conclusion Heterogeneous fibroblast subtypes affect the switch or development of periodontitis. A subtype (Cluster 4) played important role during alveolar bone destruction, by regulating other subtypes via EDA+FN paracrine.
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Affiliation(s)
- Haicheng Wang
- Department of Pathology, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, 200072, People’s Republic of China
| | - Renbin Wang
- Department of Gastroenterology, The People’s Hospital of Zhongjiang, Zhongjiang, Sichuan Province, 618100, People’s Republic of China
| | - Jingwen Yang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, 100081, People’s Republic of China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases, Beijing, 100081, People’s Republic of China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, People’s Republic of China
| | - Yuan Feng
- Department of Oral Implantology, School of & Hospital Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, 200072, People’s Republic of China
| | - Shuyu Xu
- Department of Oral Implantology, School of & Hospital Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, 200072, People’s Republic of China
| | - Qing-Guo Pei
- Department of Stomatology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, People’s Republic of China
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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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Li T, Wang H, Liu R, Wang X, Huang L, Wu Z, Yin X, Zou S, Duan P. The role of EphB4/ephrinB2 signaling in root repair after orthodontically-induced root resorption. Am J Orthod Dentofacial Orthop 2021; 159:e217-e232. [PMID: 33487501 DOI: 10.1016/j.ajodo.2020.07.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 07/01/2020] [Accepted: 07/01/2020] [Indexed: 12/28/2022]
Abstract
INTRODUCTION This study aimed to investigate the effect of EphB4/ephrinB2 signaling on orthodontically-induced root resorption repair and the possible molecular mechanism behind it. METHODS Seventy-two 6-week-old male Wistar rats were randomly divided into 3 groups: blank control group, physiological regeneration group (PHY), and EphB4 inhibitor local injection group (INH). A root repair model was built on experimental rats of the PHY and INH groups. The animals in the INH groups received a daily periodontal local injection of EphB4 inhibitor NVP-BHG712, whereas the blank control group and PHY groups received only the vehicle. RESULTS Histologic staining and microcomputed tomography analysis showed that root regeneration was inhibited in the INH group compared with the PHY group with a greater number of osteoclasts. Immunohistochemical staining showed active EphB4/ephrinB2 signaling activities during root regeneration. The cementogenesis-related factors cementum attachment protein, alkaline phosphatase, osteopontin, and runt-related transcription factor 2, and osteoclastic-related factors RANKL and osteoprotegerin were affected by regulated EphB4/ephrinB2 signaling. CONCLUSIONS These findings demonstrated that the EphB4/ephrinB2 signaling might be a promising therapeutic target for novel therapeutic approaches to reduce orthodontically-induced root resorption through enhancement of cementogenesis.
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Affiliation(s)
- Tiancheng Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School and Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Han Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School and Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ruojing Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School and Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xin Wang
- Oral Diagnosis and Treatment Center, Aviation General Hospital, China Medical University, Beijing, China
| | - Li Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School and Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zuping Wu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School and Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xing Yin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School and Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shujuan Zou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School and Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Peipei Duan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School and Hospital of Stomatology, Sichuan University, Chengdu, China.
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Lee CS, Kim JY, Kim BK, Lee IO, Park NH, Kim SH. Lactobacillus-fermented milk products attenuate bone loss in an experimental rat model of ovariectomy-induced post-menopausal primary osteoporosis. J Appl Microbiol 2020; 130:2041-2062. [PMID: 32920885 DOI: 10.1111/jam.14852] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/09/2020] [Accepted: 09/03/2020] [Indexed: 01/08/2023]
Abstract
AIM In this study, we investigated the anti-osteoporotic effect of two fermented milk products (FMPs) fermented by Lactobacillus plantarum A41 and Lactobacillus fermentum SRK414 on a rat model of ovariectomy-induced post-menopausal primary osteoporosis. METHODS AND RESULTS The two Lactobacillus FMPs increased the bone volume and bone mineral density (BMD) in ovariectomized (OVX) rats, and normalized the bone biomarkers in the serum. Additionally, they altered the gene expression levels of bone-metabolism-related markers. Furthermore, the two Lactobacillus FMPs downregulated bone-apoptosis-related genes stimulated by ovariectomy. Interestingly, the Lactobacillus FMPs decreased the levels of inflammation markers in the serum, bone, ileum and colon of the rats. Gut bacterial populations were also affected upon FMP treatment due to increase in the abundance of the genus Lactobacillus and Faecalibacterium prausnitzii. CONCLUSIONS Milk products fermented by L. plantarum A41 and L. fermentum SRK414 can exhibit anti-osteoporotic effects on post-menopausal osteoporosis via regulating the expression of bone-metabolism-related markers. SIGNIFICANCE AND IMPACT OF THE STUDY The two Lactobacillus FMPs used in the study can be an ideal method that has its potential of treating post-menopausal osteoporosis instead of drug treatments.
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Affiliation(s)
- C S Lee
- College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea.,Institute of Animal Molecular Biotechnology, Korea University, Seoul, Republic of Korea
| | - J-Y Kim
- College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - B K Kim
- Probiotic Research Laboratory, CKD Bio Research Institute, Ansan, Republic of Korea
| | - I O Lee
- Probiotic Research Laboratory, CKD Bio Research Institute, Ansan, Republic of Korea
| | - N H Park
- Probiotic Research Laboratory, CKD Bio Research Institute, Ansan, Republic of Korea
| | - S H Kim
- College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea.,Institute of Animal Molecular Biotechnology, Korea University, Seoul, Republic of Korea
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Pinheiro GVVDS, Sabino-Silva R, Araujo MRD, Gomes SP, Oliveira SW, Aguiar EMG, Cardoso-Sousa L, Gonzaga CC, Claudino M. Experimental Acute Sepsis Reduced Number of Osteocalcin Immunolabeled Cells in Periodontal Ligament. Braz Dent J 2020; 31:143-151. [PMID: 32556013 DOI: 10.1590/0103-6440202003024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 12/11/2019] [Indexed: 12/27/2022] Open
Abstract
The aim of this study was to evaluate the effect of acute sepsis in the periodontal ligament, alveolar and furcation bone in absence of periodontitis induction through histological and immunohistochemical analyses. A septic rat model was established by cecal ligation and puncture (CLP). Twelve rats were randomly divided into CLP (n=6) and Sham (n=6) groups. The animals were euthanized at 24 h and hemimandibles were submitted to histomorfometric (bone matrix, collagenous fibers, fibroblasts, osteocytes, inflammatory cells, and blood vessels) and immunohistochemical (BMP-2/4, RANKL and osteocalcin) evaluation in alveolar bone, furcation bone and periodontal ligament. Our results demonstrated that histomorphometric parameters were similar in alveolar bone, furcation bone and periodontal ligament of Sham and CLP rats. Regarding to immunohistochemical analyses, the number of BMP-2/4 and RANKL immunolabeled cells was also similar in both groups. Furthermore, it was detected a reduction in the osteocalcin immunolabeled cells in periodontal ligaments of CLP compared to Sham rats (p=0.0014). In conclusion, the acute sepsis induction resulted in reduced number of osteocalcin labelled cells in periodontal ligament region. Moreover, no significant histological differences were observed in the periodontium of rats under acute sepsis. Considering the role of osteocalcin in bone remodeling, the study contributes to revealing the importance of careful periodontal evaluation in the presence of sepsis.
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Affiliation(s)
| | - Robinson Sabino-Silva
- Department of Physiology, Institute of Biomedical Sciences, UFU - Universidade Federal de Uberlândia, Uberlandia, MG, Brazil
| | | | | | - Stephanie Wutke Oliveira
- Department of Physiology, Institute of Biomedical Sciences, UFU - Universidade Federal de Uberlândia, Uberlandia, MG, Brazil
| | - Emília Maria Gomes Aguiar
- Department of Physiology, Institute of Biomedical Sciences, UFU - Universidade Federal de Uberlândia, Uberlandia, MG, Brazil
| | - Léia Cardoso-Sousa
- Department of Physiology, Institute of Biomedical Sciences, UFU - Universidade Federal de Uberlândia, Uberlandia, MG, Brazil
| | | | - Marcela Claudino
- UEPG - Universidade Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil
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Yang J, Xu S, Wang HC. Heterogeneity of fibroblasts from radicular cyst influenced osteoclastogenesis and bone destruction. Oral Dis 2020; 26:983-997. [PMID: 32112663 DOI: 10.1111/odi.13317] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/24/2020] [Accepted: 02/24/2020] [Indexed: 01/17/2023]
Abstract
AIM To analyze the heterogeneity of fibroblasts isolated from the fibrous capsules of radicular cysts and explore the effects of fibroblast subsets on bone destruction. METHODOLOGY Radicular cysts were divided into groups according to varying perilesional sclerosis identified by radiograph. Colony-forming units (CFUs) were isolated from the fibrous capsules of cysts, by which Trap + MNCs were induced, and the expression of osteoclastogenesis-related genes was compared among groups by real-time PCR. The variances in gene profiles of CFUs were identified by principal component analysis, and then, CFUs were divided into subsets using cluster analysis. The induction of Trap + MNCs and related gene expression was compared among subsets, and osteoclastogenic induction was blocked by IST-9 or bevacizumab. The fibroblast subsets in cysts were investigated by retrospective immunostaining with IST-9, VEGF-A, and CD34. A fibroblast subset that underwent gene editing by CRISPR/Cas was injected into the site of bone defects in animal models, and the in vivo effects on osteoclastogenesis were investigated. RESULTS The fibroblast CFUs isolated from radicular cysts with perilesional unsclerotized cysts induced more Trap + MNCs than those with perilesional sclerotic cysts (p < .05). Most fibroblast CFUs from unsclerotized cysts belonged to Cluster 2, which induced more Trap + MNCs (p < .05) and highly expressed genes facilitating osteoclastogenesis; these results were different from those of Cluster 1 (p < .05), in which most CFUs were isolated from perilesional sclerotic cysts or controls (p < .05). The high expression of EDA + FN and VEGF-A was investigated in both the fibroblasts of Cluster 2 and the fibrous capsules of unsclerotized cysts (p < .05), and the number of Trap + MNCs induced by Cluster 2 was decreased by treatment with IST-9 and bevacizumab (p < .05). Consistently, EDA exon exclusion significantly decreased the osteoclastogenic induction of fibroblasts from Cluster 2 in vivo (p < .05). CONCLUSION The fibrous capsules of radicular cysts contain heterogeneous fibroblasts that can form subsets exhibiting different effects on osteoclastogenesis. The subset, which depending on the autocrine effects of EDA + FN on VEGF-A, mainly contributes to the osteoclastogenesis and bone destruction of radicular cysts. The regulation of the proportion of subsets is a possible strategy for artificially interfering with osteoclastogenesis.
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Affiliation(s)
- Jingwen 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
| | - Shuyu Xu
- Department of Oral Implant, School & Hospital 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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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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Weber M, Ries J, Büttner-Herold M, Geppert CI, Kesting M, Wehrhan F. Differences in Inflammation and Bone Resorption between Apical Granulomas, Radicular Cysts, and Dentigerous Cysts. J Endod 2019; 45:1200-1208. [PMID: 31400944 DOI: 10.1016/j.joen.2019.06.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 05/26/2019] [Accepted: 06/30/2019] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Dental cysts can be of inflammatory (radicular cysts) or noninflammatory (dentigerous cysts) origin. Apical periodontitis is a necrosis of the pulp and infection of the root canal causing the development of apical granulomas or radicular cysts. The immunology of granuloma and cyst formation is important because modern root filling materials are immunologically active and can contribute to the resolution of apical granulomas. In contrast, radicular cysts often require apicectomy. A better understanding of the pathophysiology of inflammation and bone resorption in apical periodontitis could be the basis for developing new root filling materials with superior immunomodulatory properties. METHODS Forty-one apical granulomas, 23 radicular cysts, and 23 dentigerous cysts were analyzed in this study. A tissue microarray of the 87 consecutive specimens was created, and human leukocyte antigen-DR isotype (HLA-DR)-, CD83-, receptor activator of nuclear factor kappa B ligand-, macrophage colony-stimulating factor (MCSF)-, galectin-3 (Gal3)-, CD4-, and CD8-positive cells were detected by immunohistochemistry. Tissue microarrays were digitized, and the expression of markers was quantitatively assessed. RESULTS HLA-DR, CD83, MCSF, and Gal3 expression was significantly (P < .05) higher in radicular cysts compared with apical granulomas. HLA-DR, CD83, MCSF, receptor activator of nuclear factor kappa B ligand, and Gal3 expression in dentigerous cysts was significantly (P < .05) lower than in both periapical lesions (apical granulomas and radicular cysts). CD4 and CD8 infiltration was not statistically different between apical granulomas and radicular cysts. Dentigerous cysts showed a significantly (P < .05) lower T-cell infiltration than apical periodontitis. The CD4/CD8 ratio was not significantly different between the analyzed groups. CONCLUSIONS The development of radicular cysts in apical periodontitis is associated with an increased expression of myeloid inflammatory markers and bone resorption parameters. Antigen-presenting cells and myeloid cells might be more relevant for the pathogenesis of apical periodontitis than T cells. Increased inflammation might promote the formation of radicular cysts and more pronounced bone resorption.
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Affiliation(s)
- Manuel Weber
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany.
| | - Jutta Ries
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Maike Büttner-Herold
- Department of Nephropathology, Institute of Pathology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Carol-Immanuel Geppert
- Institute of Pathology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Marco Kesting
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Falk Wehrhan
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
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Braz-Silva PH, Bergamini ML, Mardegan AP, De Rosa CS, Hasseus B, Jonasson P. Inflammatory profile of chronic apical periodontitis: a literature review. Acta Odontol Scand 2019; 77:173-180. [PMID: 30585523 DOI: 10.1080/00016357.2018.1521005] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Apical periodontitis caused by root canal infection is the most frequent pathological lesion in the jaws, mainly manifested as periapical granulomas and cysts. Understanding of the formation and progression of apical periodontitis as well as the identification of inflammatory biomarkers can help increase the knowledge of pathogenic mechanisms, improve the diagnosis and provide support for different therapeutic strategies. The objective of the present article is to review inflammatory biomarkers such as cytokines, chemokines, inflammatory cells, neuropeptides, RANK/RANKL/OPG system and other inflammatory markers and to relate these systems to the development and progression of pathological conditions related to apical periodontitis.
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Affiliation(s)
- Paulo Henrique Braz-Silva
- Division of General Pathology, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil
- Laboratory of Virology, Institute of Tropical Medicine of Sao Paulo, University of Sao Paulo, Sao Paulo, Brazil
| | - Mariana Lobo Bergamini
- Division of General Pathology, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil
| | - Andressa Pinto Mardegan
- Division of General Pathology, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil
| | - Catharina Simioni De Rosa
- Division of General Pathology, Department of Stomatology, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil
| | - Bengt Hasseus
- Department of Oral Medicine and Pathology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter Jonasson
- Department of Endodontology, Institute of Odontology The Sahlgrenska Academy University of Gothenburg, Gothenburg, Sweden
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11
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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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12
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Cheng Y, Sun J, Zhou Z, Pan J, Zou S, Chen J. Effects of lactoferrin on bone resorption of midpalatal suture during rapid expansion in rats. Am J Orthod Dentofacial Orthop 2018; 154:115-127. [PMID: 29957309 DOI: 10.1016/j.ajodo.2017.09.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 09/01/2017] [Accepted: 09/01/2017] [Indexed: 02/05/2023]
Abstract
INTRODUCTION The aim of this study was to investigate the effect of lactoferrin (LF) on bone resorption of rats' midpalatal sutures during rapid palatal expansion. METHODS Sixty male 5-week-old Wistar rats were randomly divided into 3 groups: expansion only (EO), expansion plus LF (E + LF), and sham device (control). RESULTS Microcomputed tomography showed that the bone volume/tissue volume ratio and the relative bone mineral density of the suture bone were significantly increased in the E + LF group compared with the EO group. Histochemical staining suggested that the activity of osteoblast-like cells and the amount of new bone formation were stimulated in the E + LF group whereas the activity of osteoclasts showed no obvious difference between groups. On the other hand, the immunohistochemical and the real-time polymerase chain reaction results showed that the expressions of receptor activator of nuclear factor kappa B ligand and osteoprotegerin had no significant difference between the EO and E + LF groups. CONCLUSIONS These findings demonstrated that LF could stimulate bone volume and bone density in midpalatal sutures during the suture remodeling process under tensile force. However, this enhancement effect was not caused by the reduction of bone resorption.
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Affiliation(s)
- Ye Cheng
- State Key Laboratory of Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | | | - Zeyuan Zhou
- State Key Laboratory of Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jie Pan
- State Key Laboratory of Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shujuan Zou
- State Key Laboratory of Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jianwei Chen
- State Key Laboratory of Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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13
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Kechik KA, Siar CH. Spatial distribution of osteopontin, CD44v6 and podoplanin in the lining epithelium of odontogenic keratocyst, and their biological relevance. Ann Diagn Pathol 2018; 32:17-22. [PMID: 29414392 DOI: 10.1016/j.anndiagpath.2017.08.002] [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: 07/20/2017] [Accepted: 08/30/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND AND AIMS The odontogenic keratocyst (OKC) remains the most challenging jaw cyst to treat because of its locally-aggressive behaviour and high recurrence potential. Emerging evidence suggests that osteopontin, its receptors CD44v6 and integrin αv, and podoplanin, have a role in the local invasiveness of this cyst. However the spatial distribution characteristics of these pro-invasive markers in the lining epithelium of OKC, and their association with the clinicopathologic parameters of OKC are largely unexplored. This study sought to address these issues in comparison with dentigerous cysts (DCs) and radicular cysts (RCs) and to evaluate their biological relevance. METHODS A sample consisting of 20 OKC cases, 10 DCs and 10 RCs was subjected to immunohistochemical staining for osteopontin, CD44v6 and integrin αv, and podoplanin, and semiquantitative analysis was performed. RESULTS All factors (except integrin αv) were detected heterogeneously in the constitutive layers of the lining epithelium in all three cyst types. Key observations were significant upregulation of CD44v6 and podoplanin in OKC compared to DCs and RCs, suggesting that these protein molecules may play crucial roles in promoting local invasiveness in OKC (P<0.05). Osteopontin underexpression and distribution patterns were indistinctive among all three cysts indicating its limited role as pro-invasive factor. Clinical parameters showed no significant correlations with all protein factors investigated. CONCLUSIONS Present findings suggest that an osteopontinlow CD44v6high and podoplaninhigh immunoprofile most probably represent epithelial signatures of OKC and are markers of local invasiveness in this cyst.
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Affiliation(s)
- Khamisah Awang Kechik
- Dental Specialist Clinic, Hospital Raja Permaisuri Bainun, Jalan Raja Ashman, 30450 Ipoh, Perak, Malaysia.
| | - Chong Huat Siar
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
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14
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Brito-Mendoza L, Bologna-Molina R, Irigoyen-Camacho ME, Martinez G, Sánchez-Romero C, Mosqueda-Taylor A. A Comparison of Ki67, Syndecan-1 (CD138), and Molecular RANK, RANKL, and OPG Triad Expression in Odontogenic Keratocyts, Unicystic Ameloblastoma, and Dentigerous Cysts. DISEASE MARKERS 2018; 2018:7048531. [PMID: 30151060 PMCID: PMC6087607 DOI: 10.1155/2018/7048531] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/24/2018] [Accepted: 06/04/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND OBJECTIVE Reduced expression of syndecan-1 (CD138), increased proliferation index, and modifications in the expression of the molecular RANK/RANKL/OPG triad are related to an intensified potential of aggressiveness and invasion of diverse tumors and cysts. The aim was to compare the expression of Ki-67, CD138, and the molecular triad RANK, RANKL, and OPG in odontogenic keratocysts (OKC), unicystic ameloblastomas (UA), and dentigerous cysts (DC). METHODS Immunohistochemistry for Ki-67, CD138, RANK, RANKL, and OPG was performed in 58 odontogenic cystic lesions (22 OKC, 17 DC, and 19 UA). RESULTS A higher expression of Ki-67 was identified in OKC as compared to UA (p < 0.0001). UA exhibited a greater loss of CD138 expression versus OKCs (p > 0.0034). RANKL was expressed higher in the epithelium (p = 0.0002) and in the stroma (p = 0.0004) of UA. DC had a lower expression of these markers. CONCLUSION Higher RANKL expression together with the reduction on CD138 expression in UA could be linked to a greater invasive and destructive potential, while the increased proliferation rate observed in OKC could be related to its continuous intrabony growth. The expansion of DC does not seem to be related to such factors, justifying the different therapeutic approaches proposed for each of these entities.
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Affiliation(s)
- Luisana Brito-Mendoza
- 1Oral Medicine and Pathology Postgraduate Program, Health Care Department, Universidad Autónoma Metropolitana Xochimilco, Mexico City, Mexico
| | - Ronell Bologna-Molina
- 2Molecular Pathology, Faculty of Dentistry, Universidad de la República, Montevideo, Uruguay
| | - María Esther Irigoyen-Camacho
- 1Oral Medicine and Pathology Postgraduate Program, Health Care Department, Universidad Autónoma Metropolitana Xochimilco, Mexico City, Mexico
| | - Guillermo Martinez
- 1Oral Medicine and Pathology Postgraduate Program, Health Care Department, Universidad Autónoma Metropolitana Xochimilco, Mexico City, Mexico
| | - Celeste Sánchez-Romero
- 3Oral Pathology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Adalberto Mosqueda-Taylor
- 1Oral Medicine and Pathology Postgraduate Program, Health Care Department, Universidad Autónoma Metropolitana Xochimilco, Mexico City, Mexico
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15
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Santos SCLT, Couto LA, Fonseca JM, Xavier FCA, Figueiredo ACL, Freitas VS, Freitas RA, Santos JN, Henriques ACG. Participation of osteoclastogenic factors in immunopathogenesis of human chronic periapical lesions. J Oral Pathol Med 2017; 46:846-852. [PMID: 28731540 DOI: 10.1111/jop.12618] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Chronic periapical lesions (CPLs) are common lesions of the oral cavity and are the result of caries, tooth fracture, iatrogenic causes, or factors causing contamination and pulp necrosis. Inflammatory cells participate in the expansion of CPLs by releasing factors that stimulate or inhibit osteolytic activity. The objective of this study was to investigate the participation of RANKL, TNF-α, cathepsin K, IL-33, and OPG in the development of radicular cysts (RCs) and periapical granulomas (PGs). METHODS Paraffin-embedded sections of 30 RCs and 22 PGs were submitted to immunohistochemistry. RESULTS Immunoexpression of the proteins studied was observed in the epithelium and capsule of RCs, as well as in connective tissue of PGs. The expression of the osteoclastogenic factors studied differed significantly in RCs and PGs (P < .001), with lower expression of OPG in RCs. In PGs, the lowest expression was observed for cathepsin K. Comparison of the 2 lesions showed a similar participation of RANKL and IL33, while a significant difference was observed for OPG (P < .001), TNF-α (P = .002), and cathepsin K (P = .016). No association of the expression of the proteins with lesions size was observed. CONCLUSIONS This study demonstrated the participation of RANKL, TNF-α, IL-33, cathepsin K, and OPG in the development of RCs and PGs, with emphasis on the highest immunoreactivity of cathepsin in RCs and TNF-α and OPG in PGs. OPG possibly determines the slower growth of PGs compared to RCs.
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Affiliation(s)
- S C L T Santos
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - L A Couto
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - J M Fonseca
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - F C A Xavier
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - A C L Figueiredo
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - V S Freitas
- Postgraduation Program in Public Health, State University of Feira de Santana, Feira de Santana, BA, Brazil
| | - R A Freitas
- Postgraduation Program in Oral Pathology, Department of Dentistry, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - J N Santos
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - A C G Henriques
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
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16
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Hu X, Zhao Y, Man QW, Li RF, Liu B, Zhao YF. The effects of marsupialization on bone regeneration adjacent to keratocystic odontogenic tumors, and the mechanisms involved. J Oral Sci 2017; 59:475-481. [DOI: 10.2334/josnusd.16-0653] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Xiang Hu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University
- Faculty of Dentistry, The University of Hong Kong
| | - Yi Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University
- Department of Prosthodontics, School and Hospital of Stomatology, Wuhan University
| | - Qi-Wen Man
- The State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University
| | - Rui-Fang Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University
| | - Bing Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University
| | - Yi-Fang Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University
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Sá MC, de Matos FR, Conceição TS, Leitão ACGH, Freitas RA. Immunoexpression of tumour necrosis factor-α, interleukin-1α and interleukin-10 on odontogenic cysts and tumours. Int Endod J 2016; 50:437-445. [PMID: 27009845 DOI: 10.1111/iej.12640] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 03/21/2016] [Indexed: 12/15/2022]
Abstract
AIM To analyse the immunoreactivity of IL-1α, TNF-α and IL-10 in odontogenic cysts and tumours and to investigate possible associations with established biological behaviours of these different lesions. METHODOLOGY Immunohistochemical expression of anti-IL-1α, anti-TNF-α and anti-IL-10 antibodies was assessed on epithelium and mesenchyme of 20 radicular cysts (RCs), 20 residual cysts (RECs), 20 dentigerous cysts (DCs), 18 solid ameloblastomas (SAs), 20 keratocystic odontogenic tumours (KCOTs) and 15 dental follicles (DFs). Comparative analysis of data was performed using the nonparametric Wilcoxon signed-rank test and Kruskal-Wallis's test. RESULTS Significantly greater expression of IL-1α in the epithelium was noted in RC, KCOT and SA (P = 0.01), whilst IL-10 and TNF-α was in the epithelium of RC, DC and KCOT (P < 0.01). In the mesenchyme, significantly greater immunopositivity was observed for IL-1α, IL-10 and TNF-α in KCOT, DC and RC (P < 0.01). In epithelial and mesenchymal tissues, there were a significant number of cases of RC and DC with IL-1α < IL-10 ratio (P < 0.01), whilst SA and KCOT showed IL-1α > IL-10 (P < 0.01). There was a significantly greater percentage of DF, DC and KCOT with TNF-α > IL10 ratio (P < 0.01). CONCLUSION These results suggest involvement of the proteins in the pathogenesis of odontogenic cysts and tumours, with emphasis on the highest immunoreactivity of osteolysis stimulating factors in tumours with aggressive biological behaviour, such as SA and KCOT.
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Affiliation(s)
- M C Sá
- Faculty of Dentistry, Department of Oral Pathology, Federal University of Rio Grande do Norte, Natal, Brazil
| | - F R de Matos
- Department of Dentistry of Lagarto, Federal University of Sergipe, Lagarto, Brazil
| | - T S Conceição
- Faculty of Dentistry, Department of Oral Pathology, Federal University of Rio Grande do Norte, Natal, Brazil
| | - A C G H Leitão
- Department of Oral Pathology, Faculty of Dentistry, Federal University of Bahia, Salvador, Brazil
| | - R A Freitas
- Faculty of Dentistry, Department of Oral Pathology, Federal University of Rio Grande do Norte, Natal, Brazil
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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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19
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Expression and Distribution of Receptor Activator of Nuclear Factor Kappa B, Receptor Activator of Nuclear Factor Kappa B Ligand, and Osteoprotegerin in Periradicular Cysts. J Endod 2015; 41:1281-7. [DOI: 10.1016/j.joen.2015.03.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 02/26/2015] [Accepted: 03/27/2015] [Indexed: 11/24/2022]
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20
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Suppression of proliferation, tumorigenicity and metastasis of lung cancer cells after their transduction by interferon-beta gene in baculovirus vector. Cytokine 2015; 71:318-26. [DOI: 10.1016/j.cyto.2014.10.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 08/06/2014] [Accepted: 10/28/2014] [Indexed: 02/06/2023]
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21
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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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22
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Iakovou M, Chrysomali E, Piperi E, Fanourakis G, Sklavounou A, Vlachodimitropoulos D, Tseleni-Balafouta S. A comparative study of bone remodeling molecules expression in different types of jaw ameloblastoma. J Oral Pathol Med 2014; 44:543-51. [DOI: 10.1111/jop.12263] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/13/2014] [Indexed: 10/24/2022]
Affiliation(s)
- Maria Iakovou
- Department of Oral Pathology and Medicine; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
| | - Evanthia Chrysomali
- Department of Oral Pathology and Medicine; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
| | - Evangelia Piperi
- Department of Oral Pathology and Medicine; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
| | - Galinos Fanourakis
- First Department of Pathology Medical School; National and Kapodistrian University of Athens; Athens Greece
| | - Alexandra Sklavounou
- Department of Oral Pathology and Medicine; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
| | - Dimitrios Vlachodimitropoulos
- Laboratory of Forensic Medicine and Toxicology; Medical School; National and Kapodistrian University of Athens; Athens Greece
| | - Sophia Tseleni-Balafouta
- First Department of Pathology Medical School; National and Kapodistrian University of Athens; Athens Greece
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de Moraes M, da Rocha Neto PC, de Matos FR, Lopes MLDDS, de Azevedo PRM, Costa ADLL. Immunoexpression of transforming growth factor beta and interferon gamma in radicular and dentigerous cysts. J Endod 2014; 40:1293-7. [PMID: 25043252 DOI: 10.1016/j.joen.2014.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 10/29/2013] [Accepted: 01/07/2014] [Indexed: 12/31/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate and compare the immunohistochemical expression of transforming growing factor beta (TGF-β) and interferon gamma (IFN-γ) between radicular cysts (RCs) and dentigerous cysts (DCs). METHODS Twenty RCs and DCs were selected for analysis of the immunoexpression of TGF-β and IFN-γ in the epithelium and capsule. RESULTS The cell reactivity of TGF-β and IFN-γ in the lining epithelium and capsule of RCs showed no significant differences when compared with DCs (P > .05). There was a tendency of a higher expression of TGF-β in the capsule of DCs. CONCLUSIONS Our results showed the presence of TGF-β and IFN-γ in RCs and DCs, supporting the hypothesis that both participate in the development of these lesions, where IFN-γ usually plays a role in bone resorption, which is counterbalanced by the osteoprotective activity performed by TGF-β.
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Affiliation(s)
- Maiara de Moraes
- Postgraduate Program, Oral Pathology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Pedro Carlos da Rocha Neto
- Postgraduate Program, Oral Pathology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Felipe Rodrigues de Matos
- Postgraduate Program, Oral Pathology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | | | | | - Antonio de Lisboa Lopes Costa
- Postgraduate Program, Oral Pathology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.
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MacGee S. Endodontic therapy of a mandibular canine tooth with irreversible pulpitis secondary to dentigerous cyst. J Vet Dent 2014; 31:30-9. [PMID: 24902411 DOI: 10.1177/089875641403100104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Dentigerous cysts are uncommon, yet are being reported with increasing frequency in the veterinary literature. Dentigerous cysts are a type of benign odontogenic cyst associated with impacted teeth, most commonly the mandibular first premolar tooth. Significant bone destruction can occur secondary to the expansion of a dentigerous cyst. The expanding cyst can lead to pathology of neighboring teeth, which can include external root resorption or pulpitis. Intraoral dental radiographs are imperative to properly assess the presence and extent of a dentigerous cyst, as well as the status of the neighboring teeth. This case report describes treatment for dentigerous cyst including cyst lining curettage, mandibular bone regeneration, and endodontic therapy for a canine tooth with irreversible pulpitis.
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Bezerra da Silva RA, Nelson-Filho P, Lucisano MP, De Rossi A, de Queiroz AM, Bezerra da Silva LA. MyD88 knockout mice develop initial enlarged periapical lesions with increased numbers of neutrophils. Int Endod J 2013; 47:675-86. [DOI: 10.1111/iej.12204] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 10/10/2013] [Indexed: 12/13/2022]
Affiliation(s)
- R. A. Bezerra da Silva
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - P. Nelson-Filho
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - M. P. Lucisano
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - A. De Rossi
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - A. M. de Queiroz
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - L. A. Bezerra da Silva
- Department of Pediatric Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
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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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de Moraes M, de Matos FR, de Souza LB, de Almeida Freitas R, de Lisboa Lopes Costa A. Immunoexpression of RANK, RANKL, OPG, VEGF, and vWF in radicular and dentigerous cysts. J Oral Pathol Med 2012; 42:468-73. [DOI: 10.1111/jop.12036] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Maiara de Moraes
- Oral Pathology; Federal University of Rio Grande do Norte; Natal RN Brazil
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da Silva RAB, Ferreira PDF, De Rossi A, Nelson-Filho P, Silva LAB. Toll-like receptor 2 knockout mice showed increased periapical lesion size and osteoclast number. J Endod 2012; 38:803-13. [PMID: 22595116 DOI: 10.1016/j.joen.2012.03.017] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Revised: 03/13/2012] [Accepted: 03/13/2012] [Indexed: 01/27/2023]
Abstract
INTRODUCTION The aim of this study was to characterize the formation and progression of experimentally induced periapical lesions in TLR2 knockout (TLR2 KO) mice. METHODS Periapical lesions were induced in molars of 28 wild type (WT) and 27 TLR2 KO mice. After 7, 21, and 42 days, the animals were euthanized, and the mandibles were subjected to histotechnical processing. Hematoxylin-eosin-stained sections were examined under conventional light microscopy for the description of pulpal, apical, and periapical features and under fluorescence microscopy for the determination of the periapical lesion size. The subsequent sections were evaluated by tartrate resistant acid phosphatase histoenzymology (osteoclasts), Brown and Brenn staining (bacteria), and immunohistochemistry (RANK, RANKL, and OPG). Data were analyzed by the Mann-Whitney U and Kruskal-Wallis tests (α = 0.05). RESULTS The WT group showed significant differences (P < .05) in the periapical lesion size and the osteoclast number between 7 and 42 days and between 21 and 42 days. In the TLR2 KO group, significant differences (P < .05) in the periapical lesion size and the osteoclast number were found between 7 days and the other periods. There was a significant difference (P < .05) between the 2 types of animal regarding the periapical lesion size, which was larger in the TLR2 KO animals. No significant differences (P > .05) were found between WT and TLR2 KO mice related to the pulpal, apical, and periapical features; bacteria localization; and immunohistochemical results (except for RANK expression). CONCLUSIONS TLR2 KO animals developed larger periapical lesions with a greater number of osteoclasts, indicating the important role of this receptor in the host's immune and inflammatory response to root canal and periradicular infection.
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Affiliation(s)
- Raquel Assed Bezerra da Silva
- Department of Pediatric Clinics, Preventive and Community Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
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