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Germano DB, Silveira ALPA, Kim YJ, do Amaral JB, Shio MT, da Silva Nali LH, Dos Santos Ferreira CE, Miyahira A, Fonseca FAH, Bachi ALL, Pallos D, França CN. Expression of monocyte chemokine receptors in diabetes after non-surgical periodontal treatment: A pilot study. Cytokine 2024; 178:156579. [PMID: 38471419 DOI: 10.1016/j.cyto.2024.156579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/29/2024] [Accepted: 03/06/2024] [Indexed: 03/14/2024]
Abstract
The aim of this study was to evaluate the effect of non-surgical periodontal treatment in the expression of chemokine receptors, in individuals with Periodontitis, associated or not with Diabetes. Pilot study, which included patients (n = 45) with Periodontitis, associated (n = 25) or not (n = 20) with Diabetes, submitted to the non-surgical periodontal treatment for one month. The expression of chemokine receptors CCR2, CCR5, and CX3CR1 at the mRNA level was evaluated in the peripheral mononuclear cells, as well as the expression of these receptors at the protein level was verified in monocyte subtypes (classical, intermediate, and non-classical monocytes). There was higher expression of CCR2 and CCR5 receptors at the initial visit in the group with Diabetes, with no differences for CX3CR1 (p = 0.002; p = 0.018, and p = 0.896, respectively), without differences after treatment. There was higher expression of CCR2 and CCR5 proteins in the group with Diabetes at the initial visit for classical, intermediate, and nonclassical monocytes, with no differences for CX3CR1 (CCR2: p = 0.004; p = 0.026; p = 0.024; CCR5: 0.045; p = 0.045; p = 0.013; CX3CR1: p = 0.424; p = 0.944; p = 0.392, respectively), without differences after the end of treatment. Concerning each group separately, there were reductions in the expression of CCR2 as well as CCR5 in classical, intermediate, and nonclassical monocytes, and reduction of CX3CR1 in classical monocytes after treatment in the group with Diabetes (p = 0.003; p = 0.006; p = 0.039; p = 0.007; p = 0.006; p = 0.004; p = 0.019, respectively), without differences in the group without Diabetes. The expression of the chemokine receptors CCR2 and CCR5, in patients with Periodontitis associated with Diabetes, is favorably modified after the end of the non-surgical periodontal treatment.
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Affiliation(s)
| | | | - Yeon Jung Kim
- Odontology Post Graduation, Santo Amaro University, Sao Paulo, Brazil
| | - Jônatas Bussador do Amaral
- Federal University of Sao Paulo, ENT Research Laboratory, Otorhinolaryngology-Head and Neck Surgery Department, Sao Paulo, Brazil
| | - Marina Tiemi Shio
- Health Sciences Post Graduation, Santo Amaro University, Sao Paulo, Brazil
| | | | | | | | | | | | - Débora Pallos
- Odontology Post Graduation, Santo Amaro University, Sao Paulo, Brazil.
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2
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Ma XX, Zhou XY, Feng MG, Ji YT, Song FF, Tang QC, He Q, Zhang YF. Dual Role of IGF2BP2 in Osteoimmunomodulation during Periodontitis. J Dent Res 2024; 103:208-217. [PMID: 38193302 DOI: 10.1177/00220345231216115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024] Open
Abstract
Periodontitis is a complex disease characterized by distinct inflammatory stages, with a peak of inflammation in the early phase and less prominent inflammation in the advanced phase. The insulin-like growth factor 2-binding proteins 2 (IGF2BP2) has recently been identified as a new m6A reader that protects m6A-modified messenger RNAs (mRNAs) from decay, thus participating in multiple biological processes. However, its role in periodontitis remains unexplored. Here, we investigated the role of IGF2BP2 in inflammation and osteoclast differentiation using a ligature-induced periodontitis model. Our findings revealed that IGF2BP2 responded to bacterial-induced inflammatory stimuli and exhibited differential expression patterns in early and advanced periodontitis stages, suggesting its dual role in regulating this disease. Depletion of Igf2bp2 contributed to increased release of inflammatory cytokines, thereby exacerbating periodontitis after 3 d of ligature while suppressing osteoclast differentiation and ameliorating periodontitis after 14 d of ligature. Mechanistically, we demonstrated that IGF2BP2 directly interacted with Cd5l and Cd36 mRNA via RNA immunoprecipitation assay. Overexpression of CD36 or recombinant CD5L rescued the osteoclast differentiation ability of Igf2bp2-null cells upon lipopolysaccharide stimulus, and thus the downregulation of Cd36 and Cd5l effectively reversed periodontitis in the advanced stage. Altogether, this study deepens our understanding of the potential mechanistic link among the dysregulated m6A reader IGF2BP2, immunomodulation, and osteoclastogenesis during different stages of periodontitis.
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Affiliation(s)
- X X Ma
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - X Y Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - M G Feng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y T Ji
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - F F Song
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Q C Tang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Q He
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y F Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, China
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3
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Jiang W, Xu T, Yuan S, Wei Y, Song Z, Li Q, She S, Wang X, Wang C, Yang G, Cao J, Sun F, Shi M, Li S, Liu Z, Mo Y, Lv P, Zhang Y, Wang Y, Hu W. Critical roles for CCR2 and the therapeutic potential of cenicriviroc in periodontitis: a pre-clinical study. J Clin Periodontol 2022; 49:1203-1216. [PMID: 35817437 DOI: 10.1111/jcpe.13699] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/25/2022] [Accepted: 07/06/2022] [Indexed: 11/27/2022]
Abstract
AIM CCR2 plays important roles in many inflammatory and bone metabolic diseases, but its specific role in periodontitis is unknown. In the present study, we aimed to explore the role of CCR2 in the progression of periodontitis and evaluate the effect of cenicriviroc (CVC) on periodontitis. METHODS The expression of CCR2 was studied in patients with periodontitis and in ligation-induced murine model of periodontitis. The role of CCR2 in promoting inflammation and bone resorption in periodontitis was evaluated in Ccr2-/- mice and wild-type mice. The effect of CVC in the prevention and treatment of periodontitis was evaluated by systemic and local medication. Micro-CT, Hematoxylin and eosin staining, tartrate-resistant acid phosphatase staining, real-time qPCR, ELISA, and flow cytometric were used for histomorphology, molecular biology and cytology analysis respectively. RESULTS In this study, we demonstrated that CCR2 was highly expressed in human and murine periodontitis and that CCR2 deficiency was associated with decreased inflammation, alveolar bone resorption, osteoclast number, monocyte and macrophage infiltration. Prevention and treatment with CVC significantly reduced the severity of periodontitis, regardless of whether it was administered systemically or locally. CONCLUSION CCR2 plays an important role in the development and progression of periodontitis and CVC is a potential drug for the prevention and treatment of periodontitis.
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Affiliation(s)
- Wenting Jiang
- Department of Periodontology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Tao Xu
- Department of Emergency, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Shasha Yuan
- Department of Periodontology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yiping Wei
- Department of Periodontology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Zhanming Song
- Department of Immunology, School of Basic Medical Sciences, and NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
| | - Qingqing Li
- Department of Immunology, School of Basic Medical Sciences, and NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
| | - Shaoping She
- Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University People's Hospital, Beijing, China
| | - Xuekang Wang
- Department of Immunology, School of Basic Medical Sciences, and NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
| | - Cui Wang
- Department of Periodontology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Gang Yang
- Department of Periodontology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Jie Cao
- Department of Periodontology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Fei Sun
- Department of Periodontology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Meng Shi
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Siqi Li
- Department of Periodontology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Zhongtian Liu
- Department of Immunology, School of Basic Medical Sciences, and NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
| | - Yaqian Mo
- Department of Immunology, School of Basic Medical Sciences, and NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
| | - Ping Lv
- Department of Immunology, School of Basic Medical Sciences, and NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China.,Center for Human Disease Genomics, Peking University, Beijing, China
| | - Yu Zhang
- Department of Immunology, School of Basic Medical Sciences, and NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China
| | - Ying Wang
- Department of Immunology, School of Basic Medical Sciences, and NHC Key Laboratory of Medical Immunology, Peking University, Beijing, China.,Center for Human Disease Genomics, Peking University, Beijing, China
| | - Wenjie Hu
- Department of Periodontology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China.,NHC Research Center of Engineering and Technology for Computerized Dentistry, Peking University, Beijing, China
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4
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Kulmann-Leal B, Ellwanger JH, Chies JAB. CCR5Δ32 in Brazil: Impacts of a European Genetic Variant on a Highly Admixed Population. Front Immunol 2021; 12:758358. [PMID: 34956188 PMCID: PMC8703165 DOI: 10.3389/fimmu.2021.758358] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 11/23/2021] [Indexed: 01/10/2023] Open
Abstract
The genetic background of Brazilians encompasses Amerindian, African, and European components as a result of the colonization of an already Amerindian inhabited region by Europeans, associated to a massive influx of Africans. Other migratory flows introduced into the Brazilian population genetic components from Asia and the Middle East. Currently, Brazil has a highly admixed population and, therefore, the study of genetic factors in the context of health or disease in Brazil is a challenging and remarkably interesting subject. This phenomenon is exemplified by the genetic variant CCR5Δ32, a 32 base-pair deletion in the CCR5 gene. CCR5Δ32 originated in Europe, but the time of origin as well as the selective pressures that allowed the maintenance of this variant and the establishment of its current frequencies in the different human populations is still a field of debates. Due to its origin, the CCR5Δ32 allele frequency is high in European-derived populations (~10%) and low in Asian and African native human populations. In Brazil, the CCR5Δ32 allele frequency is intermediate (4-6%) and varies on the Brazilian States, depending on the migratory history of each region. CCR5 is a protein that regulates the activity of several immune cells, also acting as the main HIV-1 co-receptor. The CCR5 expression is influenced by CCR5Δ32 genotypes. No CCR5 expression is observed in CCR5Δ32 homozygous individuals. Thus, the CCR5Δ32 has particular effects on different diseases. At the population level, the effect that CCR5Δ32 has on European populations may be different than that observed in highly admixed populations. Besides less evident due to its low frequency in admixed groups, the effect of the CCR5Δ32 variant may be affected by other genetic traits. Understanding the effects of CCR5Δ32 on Brazilians is essential to predict the potential use of pharmacological CCR5 modulators in Brazil. Therefore, this study reviews the impacts of the CCR5Δ32 on the Brazilian population, considering infectious diseases, inflammatory conditions, and cancer. Finally, this article provides a general discussion concerning the impacts of a European-derived variant, the CCR5Δ32, on a highly admixed population.
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Affiliation(s)
| | | | - José Artur Bogo Chies
- Laboratório de Imunobiologia e Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular (PPGBM), Departamento de Genética, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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5
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Qian SJ, Huang QR, Chen RY, Mo JJ, Zhou LY, Zhao Y, Li B, Lai HC. Single-Cell RNA Sequencing Identifies New Inflammation-Promoting Cell Subsets in Asian Patients With Chronic Periodontitis. Front Immunol 2021; 12:711337. [PMID: 34566966 PMCID: PMC8455889 DOI: 10.3389/fimmu.2021.711337] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/17/2021] [Indexed: 01/01/2023] Open
Abstract
Periodontitis is a highly prevalent chronic inflammatory disease leading to periodontal tissue breakdown and subsequent tooth loss, in which excessive host immune response accounts for most of the tissue damage and disease progression. Despite of the imperative need to develop host modulation therapy, the inflammatory responses and cell population dynamics which are finely tuned by the pathological microenvironment in periodontitis remained unclear. To investigate the local microenvironment of the inflammatory response in periodontitis, 10 periodontitis patients and 10 healthy volunteers were involved in this study. Single-cell transcriptomic profilings of gingival tissues from two patients and two healthy donors were performed. Histology, immunohistochemistry, and flow cytometry analysis were performed to further validate the identified cell subtypes and their involvement in periodontitis. Based on our single-cell resolution analysis, we identified HLA-DR-expressing endothelial cells and CXCL13+ fibroblasts which are highly associated with immune regulation. We also revealed the involvement of the proinflammatory NLRP3+ macrophages in periodontitis. We further showed the increased cell-cell communication between macrophage and T/B cells in the inflammatory periodontal tissues. Our data generated an intriguing catalog of cell types and interaction networks in the human gingiva and identified new inflammation-promoting cell subtypes involved in chronic periodontitis, which will be helpful in advancing host modulation therapy.
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Affiliation(s)
- Shu-Jiao Qian
- Department of Oral and Maxillo-facial Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Qian-Ru Huang
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rui-Ying Chen
- Department of Oral and Maxillo-facial Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Jia-Ji Mo
- Department of Oral and Maxillo-facial Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Lin-Yi Zhou
- Department of Oral and Maxillo-facial Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Yi Zhao
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bin Li
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hong-Chang Lai
- Department of Oral and Maxillo-facial Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University, Shanghai, China
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6
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Freire MS, Oliveira NG, Lima SMF, Porto WF, Martins DCM, Silva ON, Chaves SB, Sousa MV, Ricart CAO, Castro MS, Fontes W, Franco OL, Rezende TMB. IL-4 absence triggers distinct pathways in apical periodontitis development. J Proteomics 2020; 233:104080. [PMID: 33338687 DOI: 10.1016/j.jprot.2020.104080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/17/2020] [Accepted: 12/12/2020] [Indexed: 12/18/2022]
Abstract
Dental pulp is a specialized tissue able to respond to infectious processes. Nevertheless, infection progress and root canal colonization trigger an immune-inflammatory response in tooth-surrounding tissues, leading to apical periodontitis and bone tissue destruction, further contributing to tooth loss. In order to shed some light on the effects of IL-4 on periradicular pathology development modulation, microtomographic, histological and proteomic analyses were performed using 60 mice, 30 wild type and 30 IL-4-/-. For that, 5 animals were used for microtomographic and histological analysis, and another 5 for proteomic analysis for 0, 7 and 21 days with/without pulp exposure. The periapical lesions were established in WT and IL-4-/- mice without statistical differences in their volume, and the value of p < 0.05 was adopted as significant in microtomographic and histological analyses. Regarding histological analysis, IL-4-/- mice show aggravation of pulp inflammation compared to WT. By using proteomic analysis, we have identified 32 proteins with increased abundance and 218 proteins with decreased abundance in WT animals after 21 days of pulp exposure, compared to IL-4-/- animals. However, IL-4-/- mice demonstrated faster development of apical periodontitis. These animals developed a compensatory mechanism to overcome IL-4 absence, putatively based on the identification of upregulated proteins related to immune system signaling pathways. Significance: IL-4 might play a protective role in diseases involving bone destruction and its activity may contribute to host protection, mainly due to its antiosteoclastogenic action.
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Affiliation(s)
- Mirna S Freire
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade de Brasília, Brasília, DF, Brazil; Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; Curso de Odontologia, Centro Universitário do Planalto Central Apparecido dos Santos, UNICEPLAC, Brasília, DF, Brazil
| | - Nelson G Oliveira
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Stella M F Lima
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; Curso de Odontologia, Universidade Católica de Brasília, UCB, Brasília, DF, Brazil
| | - William F Porto
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; Porto Reports, Brasília, DF, Brazil
| | - Danilo C M Martins
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade de Brasília, UnB, Brasília, DF, Brazil
| | - Osmar N Silva
- Programa de Pós-graduacao em Ciências Farmacêuticas. Centro Universitário de Anápolis - UniEVANGELICA, Anápolis, GO, Brazil
| | - Sacha B Chaves
- Departamento de nanotecnologia, Universidade de Brasília, Brazil
| | - Marcelo V Sousa
- Laboratório de Bioquímica e Química de Proteínas, Departamento de Biologia Celular, Universidade de Brasília, Brazil
| | - Carlos A O Ricart
- Laboratório de Bioquímica e Química de Proteínas, Departamento de Biologia Celular, Universidade de Brasília, Brazil
| | - Mariana S Castro
- Laboratório de Bioquímica e Química de Proteínas, Departamento de Biologia Celular, Universidade de Brasília, Brazil
| | - Wagner Fontes
- Laboratório de Bioquímica e Química de Proteínas, Departamento de Biologia Celular, Universidade de Brasília, Brazil
| | - Octavio L Franco
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade de Brasília, Brasília, DF, Brazil; Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade de Brasília, UnB, Brasília, DF, Brazil; Programa de Pós-Graduação em Patologia Molecular, Universidade de Brasília, Brasília, DF, Brazil.
| | - Taia M B Rezende
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; Curso de Odontologia, Universidade Católica de Brasília, UCB, Brasília, DF, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade de Brasília, UnB, Brasília, DF, Brazil.
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7
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Li T, Zhang Y, Wang R, Xue Z, Li S, Cao Y, Liu D, Niu Y, Mao X, Wang X, Li W, Guo Q, Guo M, Lin N, Chen W. Discovery and validation an eight-biomarker serum gene signature for the diagnosis of steroid-induced osteonecrosis of the femoral head. Bone 2019; 122:199-208. [PMID: 30853659 DOI: 10.1016/j.bone.2019.03.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 12/18/2022]
Abstract
Steroid-induced osteonecrosis of the femoral head (SONFH) is difficult to be diagnosed at the early stages when it can be administrated effectively. Yet, to date no study has been performed to identify diagnostic biomarkers and to develop diagnostic models for SONFH. In the current study, a total of 60 SONFH patients with Association Research Circulation Osseous (ARCO) stages I-IV, and 20 controls were enrolled and divided into the discovery and validation cohorts. The serum samples were collected and the gene expression profiles were detected by microarray analysis based on the discovery cohort. Then, eight genes (BIRC3, CBL, CCR5, LYN, PAK1, PTEN, RAF1 and TLR4) were identified as the candidate serum biomarkers of SONFH due to the significant differential expression patterns and the topological importance in the interaction network of SONFH-related differentially expressed genes. Functionally, these candidate serum biomarkers were significantly involved into several pathological processes during SONFH progression, such as the immune regulation and inflammation, bone metabolism and angiogenesis. After that, a prediction model for the diagnosis of SONFH was constructed using Partial least squares regression based on the serum levels of the candidate biomarkers. Notably, both the 10-fold cross-validation and the independent dataset test demonstrated the good performance of this model. In conclusion, our study discovered eight promising serum biomarkers and developed the multi-biomarker-based prediction model as a new, potential and non-invasive diagnostic tool for the detection of SONFH, as well as benefit the administration of SONFH in a daily clinical setting.
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Affiliation(s)
- Taixian Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Yanqiong Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Rongtian Wang
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Zhipeng Xue
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Shangzhu Li
- Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin 300041, China
| | - Yuju Cao
- Zhengzhou Traditional Chinese Medicine Traumatology Hospital, Zhengzhou 450000, China
| | - Daobing Liu
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Yanfang Niu
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Xia Mao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xiaoyue Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Weijie Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qiuyan Guo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Minqun Guo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Na Lin
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Weiheng Chen
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China.
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8
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Monasterio G, Castillo F, Ibarra JP, Guevara J, Rojas L, Alvarez C, Fernández B, Agüero A, Betancur D, Vernal R. Alveolar bone resorption and Th1/Th17-associated immune response triggered duringAggregatibacter actinomycetemcomitans-induced experimental periodontitis are serotype-dependent. J Periodontol 2018; 89:1249-1261. [DOI: 10.1002/jper.17-0563] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 01/03/2018] [Accepted: 02/05/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Gustavo Monasterio
- Periodontal Biology Laboratory; Faculty of Dentistry; Universidad de Chile; Santiago Chile
| | - Francisca Castillo
- Periodontal Biology Laboratory; Faculty of Dentistry; Universidad de Chile; Santiago Chile
| | - Juan Pablo Ibarra
- Periodontal Biology Laboratory; Faculty of Dentistry; Universidad de Chile; Santiago Chile
| | - José Guevara
- Periodontal Biology Laboratory; Faculty of Dentistry; Universidad de Chile; Santiago Chile
| | - Leticia Rojas
- Periodontal Biology Laboratory; Faculty of Dentistry; Universidad de Chile; Santiago Chile
| | - Carla Alvarez
- Periodontal Biology Laboratory; Faculty of Dentistry; Universidad de Chile; Santiago Chile
| | - Baltasar Fernández
- Periodontal Biology Laboratory; Faculty of Dentistry; Universidad de Chile; Santiago Chile
| | - Amaru Agüero
- Periodontal Biology Laboratory; Faculty of Dentistry; Universidad de Chile; Santiago Chile
| | - Daniel Betancur
- Molecular Immunology Laboratory; Faculty of Biological Sciences; Universidad de Concepción; Concepción Chile
| | - Rolando Vernal
- Periodontal Biology Laboratory; Faculty of Dentistry; Universidad de Chile; Santiago Chile
- Dentistry Unit; Faculty of Health Sciences; Universidad Autónoma de Chile; Santiago Chile
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9
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Biguetti CC, Cavalla F, Silveira EM, Fonseca AC, Vieira AE, Tabanez AP, Rodrigues DC, Trombone APF, Garlet GP. Oral implant osseointegration model in C57Bl/6 mice: microtomographic, histological, histomorphometric and molecular characterization. J Appl Oral Sci 2018; 26:e20170601. [PMID: 29898187 PMCID: PMC5963915 DOI: 10.1590/1678-7757-2017-0601] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 01/25/2018] [Indexed: 12/14/2022] Open
Abstract
Despite the successful clinical application of titanium (Ti) as a biomaterial, the exact cellular and molecular mechanisms responsible for Ti osseointegration remains unclear, especially because of the limited methodological tools available in this field.
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Affiliation(s)
- Claudia Cristina Biguetti
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil
| | - Franco Cavalla
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil.,Universidad de Chile, Facultad de Odontología, Departamento de Odontología Conservadora, Santiago, Chile
| | - Elcia M Silveira
- Universidade do Sagrado Coração, Departamento de Ciências Biológicas e da Saúde, Bauru, Brasil
| | - Angélica Cristina Fonseca
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil
| | - Andreia Espindola Vieira
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil.,Universidade Federal de Alagoas, Instituto de Ciências Biológicas e da Saúde, Alagoas, Brasil
| | - Andre Petenuci Tabanez
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil
| | - Danieli C Rodrigues
- University of Texas at Dallas, Department of Bioengineering, Dallas, Texas, United States
| | | | - Gustavo Pompermaier Garlet
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil
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10
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CCR5Δ32 (rs333) polymorphism is associated with decreased risk of chronic and aggressive periodontitis: A case-control analysis based in disease resistance and susceptibility phenotypes. Cytokine 2017; 103:142-149. [PMID: 28969941 DOI: 10.1016/j.cyto.2017.09.022] [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] [Received: 08/09/2017] [Revised: 09/14/2017] [Accepted: 09/21/2017] [Indexed: 02/06/2023]
Abstract
Chronic and aggressive periodontitis are infectious diseases characterized by the irreversible destruction of periodontal tissues, which is mediated by the host inflammatory immune response triggered by periodontal infection. The chemokine receptor CCR5 play an important role in disease pathogenesis, contributing to pro-inflammatory response and osteoclastogenesis. CCR5Δ32 (rs333) is a loss-of-function mutation in the CCR5 gene, which can potentially modulate the host response and, consequently periodontitis outcome. Thus, we investigated the effect of the CCR5Δ32 mutation over the risk to suffer periodontitis in a cohort of Brazilian patients (total N=699), representative of disease susceptibility (chronic periodontitis, N=197; and aggressive periodontitis, N=91) or resistance (chronic gingivitis, N=193) phenotypes, and healthy subjects (N=218). Additionally, we assayed the influence of CCR5Δ32 in the expression of the biomarkers TNFα, IL-1β, IL-10, IL-6, IFN-γ and T-bet, and key periodontal pathogens P. gingivalis, T. forsythia, and T. denticola. In the association analysis of resistant versus susceptible subjects, CCR5Δ32 mutant allele-carriers proved significantly protected against chronic (OR 0.49; 95% CI 0.29-0.83; p-value 0.01) and aggressive (OR 0.46; 95% CI 0.22-0.94; p-value 0.03) periodontitis. Further, heterozygous subjects exhibited significantly decreased expression of TNFα in periodontal tissues, pointing to a functional effect of the mutation in periodontal tissues during the progression of the disease. Conversely, no significant changes were observed in the presence or quantity of the periodontal pathogens P. gingivalis, T. forsythia, and T. denticola in the subgingival biofilm that could be attributable to the mutant genotype.
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11
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Lima ILDA, Silva JMD, Rodrigues LFD, Madureira DF, Fonseca AC, Garlet GP, Teixeira MM, Russo RC, Fukada SY, Silva TAD. Contribution of atypical chemokine receptor 2/ackr2 in bone remodeling. Bone 2017; 101:113-122. [PMID: 28476575 DOI: 10.1016/j.bone.2017.05.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 04/29/2017] [Accepted: 05/02/2017] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Bone remodeling is a tightly regulated process influenced by chemokines. ACKR2 is a decoy receptor for CC chemokines functioning as regulator of inflammatory response. In this study we investigated whether the absence of ACKR2 would affect bone phenotype and remodeling induced by mechanical loading. METHODS An orthodontic appliance was placed between incisors and first molar of ACKR2 deficient (ACKR2-/-) and C57BL6/J (wild-type/WT) mice. Microtomography, histology and qPCR were performed to evaluate bone parameters, orthodontic tooth movement (OTM), bone cells counts and the expression of ACKR2, bone remodeling markers, CC chemokines and chemokines receptors. Bone marrow cells (BMC) from WT and ACKR2-/- mice were differentiated in osteoclasts and osteoblasts for analysis of activity and expression of specific markers. RESULTS Mechanical stimulus induced ACKR2 production in periodontium. The expression of ACKR2 in vitro was mostly detected in mature osteoclasts and early-differentiated osteoblasts. Although ACKR2-/- mice exhibited regular phenotype in maxillary bone, the amount of OTM, osteoclasts counts and the expression of pro-resorptive markers were increased in this group. In contrast, the number of osteoblasts and related markers were decreased. OTM resulted in augmented expression of CC chemokines and receptors CCR5 and CCR1 in periodontium, which was higher in ACKR2-/- than WT mice. In vitro experiments demonstrated an augmented formation of osteoclasts and diminished differentiation of osteoblasts in ACKR2-/- mice. CONCLUSIONS These data suggests that ACKR2 functions as a regulator of mechanically-induced bone remodeling by affecting the differentiation and activity of bone cells and the availability of CC chemokines at periodontal microenvironment. Therapeutic strategies based on increase of ACKR2 might be useful to hinder bone loss in inflammatory conditions.
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Affiliation(s)
- Izabella Lucas de Abreu Lima
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, ICB/UFMG, Avenida Presidente Antônio Carlos 6627, 31.270-9010 Belo Horizonte, MG, Brazil
| | - Janine Mayra da Silva
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, ICB/UFMG, Avenida Presidente Antônio Carlos 6627, 31.270-9010 Belo Horizonte, MG, Brazil
| | - Letícia Fernanda Duffles Rodrigues
- Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, Federal University of Minas Gerais, Avenida Presidente Antônio Carlos 6627, 31.270-9010 Belo Horizonte, MG, Brazil
| | - Davidson Frois Madureira
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, ICB/UFMG, Avenida Presidente Antônio Carlos 6627, 31.270-9010 Belo Horizonte, MG, Brazil
| | - Angélica Cristina Fonseca
- Department of Biological Sciences, School of Dentistry of Bauru, São Paulo University, FOB/USP, Al. Octávio Pinheiro Brisola 9-75, CEP 17012-901 Bauru, SP, Brazil
| | - Gustavo Pompermaier Garlet
- Department of Biological Sciences, School of Dentistry of Bauru, São Paulo University, FOB/USP, Al. Octávio Pinheiro Brisola 9-75, CEP 17012-901 Bauru, SP, Brazil.
| | - Mauro Martins Teixeira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, ICB/UFMG, Avenida Presidente Antônio Carlos 6627, 31.270-9010 Belo Horizonte, MG, Brazil
| | - Remo Castro Russo
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, ICB/UFMG, Avenida Presidente Antônio Carlos 6627, 31.270-9010 Belo Horizonte, MG, Brazil
| | - Sandra Yasuyo Fukada
- Department of Physics and Chemistry, Faculty of Pharmaceutical Science of Ribeirão Preto, São Paulo University, Avenida do Café, s/n, Cidade Universitária, 14040-903 Ribeirao Preto, SP, Brazil.
| | - Tarcília Aparecida da Silva
- Department of Oral Pathology and Surgery, Faculty of Dentistry, Federal University of Minas Gerais, ICB/UFMG, Avenida Presidente Antônio Carlos 6627, 31.270-9010 Belo Horizonte, MG, Brazil.
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12
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Xuan W, Feng X, Qian C, Peng L, Shi Y, Xu L, Wang F, Tan W. Osteoclast differentiation gene expression profiling reveals chemokine CCL4 mediates RANKL-induced osteoclast migration and invasion via PI3K pathway. Cell Biochem Funct 2017; 35:171-177. [PMID: 28370169 DOI: 10.1002/cbf.3260] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/26/2017] [Accepted: 02/27/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Wenhua Xuan
- Department of Rheumatology; The First Affiliated Hospital of Nanjing Medical University; Nanjing China
| | - Xiaoke Feng
- Department of Traditional Chinese Medicine; The First Affiliated Hospital of Nanjing Medical University; Nanjing China
| | - Chen Qian
- Department of Rheumatology; The First Affiliated Hospital of Nanjing Medical University; Nanjing China
| | - Liuying Peng
- Department of Rheumatology; The First Affiliated Hospital of Nanjing Medical University; Nanjing China
| | - Yumeng Shi
- Department of Rheumatology; The First Affiliated Hospital of Nanjing Medical University; Nanjing China
| | - Lingxiao Xu
- Department of Rheumatology; The First Affiliated Hospital of Nanjing Medical University; Nanjing China
| | - Fang Wang
- Department of Cardiology; The First Affiliated Hospital of Nanjing Medical University; Nanjing China
| | - Wenfeng Tan
- Department of Rheumatology; The First Affiliated Hospital of Nanjing Medical University; Nanjing China
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13
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Alemi F, Elgendy M, Edderkaoui B. Potential Role of DARC-Chemokine Interaction in the Recruitment of Osteoclast Precursors in Response to Bacterial Lipopolysaccharide Challenge. Calcif Tissue Int 2016; 99:481-488. [PMID: 27376530 PMCID: PMC5056128 DOI: 10.1007/s00223-016-0170-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 06/24/2016] [Indexed: 12/14/2022]
Abstract
Duffy antigen receptor for chemokines (DARC) binds to a number of pro-inflammatory chemokines, and since chemokines are known to regulate trafficking of osteoclast (OC) precursors, we predicted that DARC would regulate OC recruitment to sites of inflammation by modulating chemokine activity. To test this hypothesis, we evaluated the mRNA expression of Darc and the chemokines known to bind to DARC, in endothelial cells treated with bacterial lipopolysaccharide (LPS). The mRNA expression of Mcp-1, Rantes, Darc and Ccr5 was significantly increased in endothelial cells in response to LPS treatment. Blocking the function of DARC with neutralizing antibody partially abrogated the effect of LPS on the mRNA expression of Mcp-1 and Rantes. In vivo, mice with targeted disruption of Darc gene (Darc-KO) and control wild-type (WT) mice were used to assess the role of DARC in response to single LPS application on the top of parietal bones. Five hours post-LPS injection, local expression of Cd14 mRNA (a marker of inflammatory monocytes) was significantly increased in both lines of mice. However, the magnitude of increase was greater in WT mice compared with Darc-KO mice suggesting a role for DARC in mediating the recruitment of monocytes in response to LPS. Histological staining for tartrate-resistant acid phosphatase (TRAP) in calvaria sections taken from the injection sites revealed a significant reduction in TRAP-labeled surface per bone surface in response to LPS in Darc-KO mice compared with WT mice. Based on these findings, we concluded that DARC regulates recruitment of OC precursors at the inflammation site, probably through regulation of chemokines transcytosis across endothelial cell barrier.
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Affiliation(s)
- Fatemeh Alemi
- Musculoskeletal Disease Center, Research Service, Jerry L Pettis Memorial Veterans Administration Medical Center, 11201 Benton St. (151), Loma Linda, CA, 92357, USA
| | - Mohamed Elgendy
- Musculoskeletal Disease Center, Research Service, Jerry L Pettis Memorial Veterans Administration Medical Center, 11201 Benton St. (151), Loma Linda, CA, 92357, USA
| | - Bouchra Edderkaoui
- Musculoskeletal Disease Center, Research Service, Jerry L Pettis Memorial Veterans Administration Medical Center, 11201 Benton St. (151), Loma Linda, CA, 92357, USA.
- School of Medicine, Loma Linda University, Loma Linda, CA, USA.
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14
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Hosokawa Y, Hosokawa I, Shindo S, Ohta Y, Ozaki K, Matsuo T. Alkannin inhibits CCL3 and CCL5 production in human periodontal ligament cells. Cell Biol Int 2016; 40:1380-1385. [DOI: 10.1002/cbin.10692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 10/12/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Yoshitaka Hosokawa
- Department of Conservative Dentistry; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Tokushima Japan
| | - Ikuko Hosokawa
- Department of Conservative Dentistry; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Tokushima Japan
| | - Satoru Shindo
- Department of Conservative Dentistry; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Tokushima Japan
| | - Yoshihiro Ohta
- Graduate School of Mathematical Sciences; University of Tokyo; Meguro-ku Tokyo Japan
| | - Kazumi Ozaki
- Department of Oral Health Care Promotion; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - Takashi Matsuo
- Department of Conservative Dentistry; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Tokushima Japan
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15
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Díaz-Zúñiga J, Monasterio G, Alvarez C, Melgar-Rodríguez S, Benítez A, Ciuchi P, García M, Arias J, Sanz M, Vernal R. Variability of the dendritic cell response triggered by different serotypes of Aggregatibacter actinomycetemcomitans or Porphyromonas gingivalis is toll-like receptor 2 (TLR2) or TLR4 dependent. J Periodontol 2016; 86:108-19. [PMID: 25224175 DOI: 10.1902/jop.2014.140326] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Different serotypes of Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis have been shown to induce differential dendritic cell (DC) responses. This study investigates whether cytokine and CC-chemokine receptor (CCR) production by DCs stimulated with different serotypes of A. actinomycetemcomitans or P. gingivalis is Toll-like receptor 2 (TLR2) and/or TLR4 dependent. METHODS DCs were obtained from healthy individuals and primed at a multiplicity of infection (MOI) of 10(2) with different A. actinomycetemcomitans or P. gingivalis serotypes in the presence or absence of anti-TLR2 or anti-TLR4 blocking antibodies. TLR2 and TLR4 expression, CCR5 and CCR6 expression, and interleukin (IL)-1β, IL-10, IL-12, and IL-23 expression and secretion were quantified by flow cytometry, real-time reverse-transcription polymerase chain reaction, and enzyme-linked immunosorbent assay. RESULTS When DCs were stimulated with serotype b of A. actinomycetemcomitans or serotype K1 of P. gingivalis, higher levels of TLR2 or TLR4, respectively, were detected compared to DCs stimulated with the other serotypes. Similarly, higher levels of cytokines and CCRs were detected in serotype b- or serotype K1-primed DCs compared to the others, and these increased levels positively correlated with levels of TLR2 or TLR4. When TLR2 signaling was blocked using a specific anti-TLR2 monoclonal antibody, serotype b-induced cytokine and CCR expression was inhibited; when TLR4 signaling was blocked, serotype K1-induced response was inhibited. CONCLUSIONS These results demonstrate that the variability of secretion of cytokines and expression of CCRs detected in DCs stimulated with different serotypes of A. actinomycetemcomitans or P. gingivalis is TLR2 or TLR4 dependent, respectively.
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Affiliation(s)
- Jaime Díaz-Zúñiga
- Periodontal Biology Laboratory, Department of Conservative Dentistry, Dental School, University of Chile, Santiago, Chile
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16
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Cavalla F, Biguetti CC, Colavite PM, Silveira EV, Martins W, Letra A, Trombone APF, Silva RM, Garlet GP. TBX21-1993T/C (rs4794067) polymorphism is associated with increased risk of chronic periodontitis and increased T-bet expression in periodontal lesions, but does not significantly impact the IFN-g transcriptional level or the pattern of periodontophatic bacterial infection. Virulence 2016; 6:293-304. [PMID: 25832120 DOI: 10.1080/21505594.2015.1029828] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Th1-polarized host response, mediated by IFN-γ, has been associated with increased severity of periodontal disease as well as control of periodontal infection. The functional polymorphism TBX21-1993T/C (rs4794067) increases the transcriptional activity of the TBX21 gene (essential for Th1 polarization) resulting in a predisposition to a Th-1 biased immune response. Thus, we conducted a case-control study, including a population of healthy controls (H, n = 218), chronic periodontitis (CP, n = 197), and chronic gingivitis patients (CG, n = 193), to investigate if genetic variations in TBX21 could impact the development of Th1 responses, and consequently influence the pattern of bacterial infection and periodontitis outcome. We observed that the polymorphic allele T was significantly enriched in the CP patients compared to CG subjects, while the H controls demonstrated and intermediate genotype. Also, investigating the putative functionality TBX21-1993T/C in the modulation of local response, we observed that the transcripts levels of T-bet, but not of IFN-γ, were upregulated in homozygote and heterozygote polymorphic subjects. In addition, TBX21-1993T/C did not influence the pattern of bacterial infection or the clinical parameters of disease severity, being the presence/absence of red complex bacteria the main factor associated with the disease status and the subrogate variable probing depth (PD) in the logistic regression analysis.
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Affiliation(s)
- Franco Cavalla
- a Departamento de Ciencias Biológicas; Faculdade de Odontologia de Bauru Universidade de São Paulo (FOB/USP) ; Bauru , Brazil
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17
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Xu Y, Chu N, Qiu X, Gober HJ, Li D, Wang L. The interconnected role of chemokines and estrogen in bone metabolism. Biosci Trends 2016; 10:433-444. [DOI: 10.5582/bst.2016.01072] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yingping Xu
- Obstetrics and Gynecology Hospital of Fudan University
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Shanghai Medical College, Fudan University
- The Academy of Integrative Medicine of Fudan University
| | - Nan Chu
- Obstetrics and Gynecology Hospital of Fudan University
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Shanghai Medical College, Fudan University
| | - Xuemin Qiu
- Obstetrics and Gynecology Hospital of Fudan University
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Shanghai Medical College, Fudan University
- The Academy of Integrative Medicine of Fudan University
| | | | - Dajin Li
- Obstetrics and Gynecology Hospital of Fudan University
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Shanghai Medical College, Fudan University
- The Academy of Integrative Medicine of Fudan University
| | - Ling Wang
- Obstetrics and Gynecology Hospital of Fudan University
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Shanghai Medical College, Fudan University
- The Academy of Integrative Medicine of Fudan University
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18
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Vieira AE, Repeke CE, Ferreira Junior SDB, Colavite PM, Biguetti CC, Oliveira RC, Assis GF, Taga R, Trombone APF, Garlet GP. Intramembranous bone healing process subsequent to tooth extraction in mice: micro-computed tomography, histomorphometric and molecular characterization. PLoS One 2015; 10:e0128021. [PMID: 26023920 PMCID: PMC4449187 DOI: 10.1371/journal.pone.0128021] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 04/21/2015] [Indexed: 01/12/2023] Open
Abstract
Bone tissue has a significant potential for healing, which involves a significant the interplay between bone and immune cells. While fracture healing represents a useful model to investigate endochondral bone healing, intramembranous bone healing models are yet to be developed and characterized. In this study, a micro-computed tomography, histomorphometric and molecular (RealTimePCRarray) characterization of post tooth-extraction alveolar bone healing was performed on C57Bl/6 WT mice. After the initial clot dominance (0h), the development of a provisional immature granulation tissue is evident (7d), characterized by marked cell proliferation, angiogenesis and inflammatory cells infiltration; associated with peaks of growth factors (BMP-2-4-7,TGFβ1,VEGFa), cytokines (TNFα, IL-10), chemokines & receptors (CXCL12, CCL25, CCR5, CXCR4), matrix (Col1a1-2, ITGA4, VTN, MMP1a) and MSCs (CD105, CD106, OCT4, NANOG, CD34, CD146) markers expression. Granulation tissue is sequentially replaced by more mature connective tissue (14d), characterized by inflammatory infiltrate reduction along the increased bone formation, marked expression of matrix remodeling enzymes (MMP-2-9), bone formation/maturation (RUNX2, ALP, DMP1, PHEX, SOST) markers, and chemokines & receptors associated with healing (CCL2, CCL17, CCR2). No evidences of cartilage cells or tissue were observed, strengthening the intramembranous nature of bone healing. Bone microarchitecture analysis supports the evolving healing, with total tissue and bone volumes as trabecular number and thickness showing a progressive increase over time. The extraction socket healing process is considered complete (21d) when the dental socket is filled by trabeculae bone with well-defined medullary canals; it being the expression of mature bone markers prevalent at this period. Our data confirms the intramembranous bone healing nature of the model used, revealing parallels between the gene expression profile and the histomorphometric events and the potential participation of MCSs and immune cells in the healing process, supporting the forthcoming application of the model for the better understanding of the bone healing process.
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Affiliation(s)
- Andreia Espindola Vieira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Carlos Eduardo Repeke
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Priscila Maria Colavite
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Claudia Cristina Biguetti
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Rodrigo Cardoso Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Gerson Francisco Assis
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Rumio Taga
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Gustavo Pompermaier Garlet
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
- * E-mail:
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19
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Araujo-Pires AC, Vieira AE, Francisconi CF, Biguetti CC, Glowacki A, Yoshizawa S, Campanelli AP, Trombone APF, Sfeir CS, Little SR, Garlet GP. IL-4/CCL22/CCR4 axis controls regulatory T-cell migration that suppresses inflammatory bone loss in murine experimental periodontitis. J Bone Miner Res 2015; 30:412-22. [PMID: 25264308 PMCID: PMC4542048 DOI: 10.1002/jbmr.2376] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/27/2014] [Accepted: 08/29/2014] [Indexed: 12/15/2022]
Abstract
Inflammatory bone resorption is a hallmark of periodontitis, and Tregs and Th2 cells are independently associated with disease progression attenuation. In this study, we employed an infection-triggered inflammatory osteolysis model to investigate the mechanisms underlying Treg and Th2 cell migration and the impact on disease outcome. Aggregatibacter actinomycetemcomitans-infected C57Bl/6 (wild-type [WT]) mice develop an intense inflammatory reaction and alveolar bone resorption, and Treg and Th2 cell migration is temporally associated with disease progression attenuation. Tregs extracted from the lesions preferentially express CCR4 and CCR8, whereas Th2 cells express CCR3, CCR4, and CCR8. The absence of CCR5 and CCR8 did not significantly impact the migration of Tregs and Th2 cells or affect the disease outcome. CCR4KO mice presented a minor reduction in Th2 cells in parallel with major impairment of Treg migration, which was associated with increased inflammatory bone loss and higher proinflammatory and osteoclastogenic cytokine levels. The blockade of the CCR4 ligand CCL22 in WT mice resulted in an increased inflammatory bone loss phenotype similar to that in the CCR4KO strain. Adoptive transfer of CCR4(+) Tregs to the CCR4KO strain revert the increased disease phenotype to WT mice-like levels; also, the in situ production of CCL22 in the lesions is mandatory for Tregs migration and the consequent bone loss arrest. The local release of exogenous CCL22 provided by poly(lactic-co-glycolic acid) (PLGA) microparticles promotes migration of Tregs and disease arrest in the absence of endogenous CCL22 in the IL-4KO strain, characterized by the lack of endogenous CCL22 production, defective migration of Tregs, and exacerbated bone loss. In summary, our results show that the IL-4/CCL22/CCR4 axis is involved in the migration of Tregs to osteolytic lesion sites, and attenuates development of lesions by inhibiting inflammatory migration and the production of proinflammatory and osteoclastogenic mediators.
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Affiliation(s)
- Ana Claudia Araujo-Pires
- Department of Biological Sciences, School of Dentistry of Bauru, Sao Paulo University (FOB/USP), Bauru, SP, Brazil
| | - Andreia Espindola Vieira
- Department of Biological Sciences, School of Dentistry of Bauru, Sao Paulo University (FOB/USP), Bauru, SP, Brazil
| | - Carolina Favaro Francisconi
- Department of Biological Sciences, School of Dentistry of Bauru, Sao Paulo University (FOB/USP), Bauru, SP, Brazil
| | - Claudia Cristina Biguetti
- Department of Biological Sciences, School of Dentistry of Bauru, Sao Paulo University (FOB/USP), Bauru, SP, Brazil
| | - Andrew Glowacki
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, USA
- The McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- The Center for Craniofacial Regeneration, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sayuri Yoshizawa
- The McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- The Center for Craniofacial Regeneration, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ana Paula Campanelli
- Department of Biological Sciences, School of Dentistry of Bauru, Sao Paulo University (FOB/USP), Bauru, SP, Brazil
| | | | - Charles S. Sfeir
- The McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- The Center for Craniofacial Regeneration, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Steven R. Little
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, USA
- The McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- The Center for Craniofacial Regeneration, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Gustavo Pompermaier Garlet
- Department of Biological Sciences, School of Dentistry of Bauru, Sao Paulo University (FOB/USP), Bauru, SP, Brazil
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Khan UA, Hashimi SM, Khan S, Quan J, Bakr MM, Forwood MR, Morrison NM. Differential Expression of Chemokines, Chemokine Receptors and Proteinases by Foreign Body Giant Cells (FBGCs) and Osteoclasts. J Cell Biochem 2014; 115:1290-8. [DOI: 10.1002/jcb.24781] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 02/03/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Usman A. Khan
- School of Medical Science; Griffith University; Gold Coast QLD 4215 Australia
- School of Dentistry and Oral Health; Griffith University; Gold Coast QLD 4215 Australia
| | - Saeed M. Hashimi
- School of Dentistry and Oral Health; Griffith University; Gold Coast QLD 4215 Australia
| | - Shershah Khan
- School of Dentistry and Oral Health; Griffith University; Gold Coast QLD 4215 Australia
| | - Jingjing Quan
- School of Medical Science; Griffith University; Gold Coast QLD 4215 Australia
| | - Mahmoud M. Bakr
- School of Dentistry and Oral Health; Griffith University; Gold Coast QLD 4215 Australia
| | - Mark R. Forwood
- School of Medical Science; Griffith University; Gold Coast QLD 4215 Australia
| | - Nigel M. Morrison
- School of Medical Science; Griffith University; Gold Coast QLD 4215 Australia
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Velusamy SK, Ganeshnarayan K, Markowitz K, Schreiner H, Furgang D, Fine DH, Velliyagounder K. Lactoferrin knockout mice demonstrates greater susceptibility to Aggregatibacter actinomycetemcomitans-induced periodontal disease. J Periodontol 2013; 84:1690-701. [PMID: 23327622 DOI: 10.1902/jop.2013.120587] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Among the innate defense mechanisms in the oral cavity, lactoferrin (LF) is a vital antimicrobial that can modify the host response against periodontopathogens. Aggregatibacter actinomycetemcomitans is the main periodontopathogen of localized aggressive periodontitis. The aim of this study is to evaluate the role of LF during A. actinomycetemcomitans-induced periodontitis. METHODS Differences in the expression levels of cytokines, chemokines, chemokine receptors, and bone loss markers between wild-type (WT) and LF knockout mice (LFKO(-/-)) were evaluated by real time-PCR. Serum IgG and LF levels were quantified by ELISA. Alveolar bone loss among the groups was estimated by measuring the distance from cemento-enamel junction (CEJ) to the alveolar bone crest (ABC) at 20 molar sites. RESULTS Oral infection with A. actinomycetemcomitans increased LF levels in periodontal tissue (P = 0.01) and saliva (P = 0.0004) of wild-type infected (WTI) mice compared to wild-type control mice. Pro-inflammatory cytokines such as interferon-γ, tumor necrosis factor-α, interleukin (IL)-1β, IL-6, and IL-12 were increased in the infected LF knockout (LFKO(-/-)I) mice compared to the WTI mice, whereas the anti-inflammatory cytokines IL-4 and IL-10 were decreased. Chemokines and chemokine receptors showed different expression patterns between WTI and LFKO(-/-)I mice. The LFKO(-/-)I mice developed increased bone loss (P = 0.002), in conjunction with increased expression of receptor activator of nuclear factor-κB ligand and decrease in osteoprotegerin, compared to WTI mice. CONCLUSIONS These results demonstrate that the infected LFKO(-/-) mice were more susceptible to A. actinomycetemcomitans-induced alveolar bone loss, with different patterns of immune responses compared to those of WTI mice.
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Affiliation(s)
- S K Velusamy
- Department of Oral Biology, Rutgers School of Dental Medicine, Newark, NJ
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22
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Taddei SRDA, Queiroz-Junior CM, Moura AP, Andrade I, Garlet GP, Proudfoot AEI, Teixeira MM, da Silva TA. The effect of CCL3 and CCR1 in bone remodeling induced by mechanical loading during orthodontic tooth movement in mice. Bone 2013; 52:259-67. [PMID: 23059626 DOI: 10.1016/j.bone.2012.09.036] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 09/26/2012] [Accepted: 09/29/2012] [Indexed: 01/02/2023]
Abstract
Bone remodeling is affected by mechanical loading and inflammatory mediators, including chemokines. The chemokine (C-C motif) ligand 3 (CCL3) is involved in bone remodeling by binding to C-C chemokine receptors 1 and 5 (CCR1 and CCR5) expressed on osteoclasts and osteoblasts. Our group has previously demonstrated that CCR5 down-regulates mechanical loading-induced bone resorption. Thus, the present study aimed to investigate the role of CCR1 and CCL3 in bone remodeling induced by mechanical loading during orthodontic tooth movement in mice. Our results showed that bone remodeling was significantly decreased in CCL3(-/-) and CCR1(-/-) mice and in animals treated with Met-RANTES (an antagonist of CCR5 and CCR1). mRNA levels of receptor activator of nuclear factor kappa-B (RANK), its ligand RANKL, tumor necrosis factor alpha (TNF-α) and RANKL/osteoprotegerin (OPG) ratio were diminished in the periodontium of CCL3(-/-) mice and in the group treated with Met-RANTES. Met-RANTES treatment also reduced the levels of cathepsin K and metalloproteinase 13 (MMP13). The expression of the osteoblast markers runt-related transcription factor 2 (RUNX2) and periostin was decreased, while osteocalcin (OCN) was augmented in CCL3(-/-) and Met-RANTES-treated mice. Altogether, these findings show that CCR1 is pivotal for bone remodeling induced by mechanical loading during orthodontic tooth movement and these actions depend, at least in part, on CCL3.
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Affiliation(s)
- Silvana R de Albuquerque Taddei
- Laboratory Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, ICB/UFMG, Avenida Presidente Antônio Carlos 6627, 31.270-9010, Belo Horizonte, MG, Brazil.
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23
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Repeke CE, Ferreira SB, Vieira AE, Silveira EM, Avila-Campos MJ, da Silva JS, Santos CF, Campanelli AP, Trombone APF, Garlet GP. Dose-response met-RANTES treatment of experimental periodontitis: a narrow edge between the disease severity attenuation and infection control. PLoS One 2011; 6:e22526. [PMID: 21799885 PMCID: PMC3140528 DOI: 10.1371/journal.pone.0022526] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Accepted: 06/23/2011] [Indexed: 11/19/2022] Open
Abstract
Chemokines and chemokine receptors have been implicated in the selective migration of leukocyte subsets to periodontal tissues, which consequently influences the disease outcome. Among these chemoattractants, the chemokines CCL3, CCL4 and CCL5 and its receptors, CCR1 and CCR5, have been associated with increased disease severity in mice and humans. Therefore, in this study we investigated the modulation of experimental periodontitis outcome by the treatment with a specific antagonist of CCR1 and 5 receptors, called met-RANTES. C57Bl/6 mice was orally infected with Aggregatibacter actinomycetemcomitans and treated with 0.05, 0.1, 0.5, 1.5 and 5 mg doses of met-RANTES on alternate days, and evaluated by morphometric, cellular, enzymatic and molecular methods. At 0.5 mg up to 5 mg doses, a strong reduction in the alveolar bone loss and inflammatory cell migration were observed. Interestingly, 5 mg dose treatment resulted in the maximum inhibition of inflammatory cell migration, but resulted in a similar inhibition of bone loss when compared with the lower doses, and also resulted in increased bacterial load and CRP response. When 0.5 and 5 mg therapy regimens were compared it was observed that both therapeutic protocols were able to downregulate the levels of pro-inflammatory, Th1-type and osteoclastogenic cytokines, and CD3+ and F4/80+ cells migration to periodontal tissues, but the high dose modulates host response in a more pronounced and unspecific and excessive way, interfering also with the production of antimicrobial mediators such as MPO, iNOS and IgG, and with GR1+ and CD19+ cells migration. Our results demonstrate a thin line between beneficial immunoregulation and impaired host defense during experimental periodontitis, and the determination of the exact equilibrium point is mandatory for the improvement of immune-targeted therapy of periodontitis.
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Affiliation(s)
- Carlos Eduardo Repeke
- Department of Biological Sciences, School of Dentistry of Bauru, São Paulo University - FOB/USP, Bauru, Sao Paulo, Brazil
| | - Samuel Barros Ferreira
- Department of Biological Sciences, School of Dentistry of Bauru, São Paulo University - FOB/USP, Bauru, Sao Paulo, Brazil
| | - Andreia Espindola Vieira
- Department of Biological Sciences, School of Dentistry of Bauru, São Paulo University - FOB/USP, Bauru, Sao Paulo, Brazil
| | - Elcia Maria Silveira
- Department of Biological Sciences, School of Dentistry of Bauru, São Paulo University - FOB/USP, Bauru, Sao Paulo, Brazil
| | - Mario Julio Avila-Campos
- Department of Microbiology, Institute of Biomedical Sciences, São Paulo University - ICB/USP, Sao Paulo, Sao Paulo, Brazil
| | - João Santana da Silva
- Department of Biochemistry and Immunology, School of Medicine of Ribeirão Preto, São Paulo University - FMRP/USP, Riberao Preto, Sao Paulo, Brazil
| | - Carlos Ferreira Santos
- Department of Biological Sciences, School of Dentistry of Bauru, São Paulo University - FOB/USP, Bauru, Sao Paulo, Brazil
| | - Ana Paula Campanelli
- Department of Biological Sciences, School of Dentistry of Bauru, São Paulo University - FOB/USP, Bauru, Sao Paulo, Brazil
| | | | - Gustavo Pompermaier Garlet
- Department of Biological Sciences, School of Dentistry of Bauru, São Paulo University - FOB/USP, Bauru, Sao Paulo, Brazil
- * E-mail:
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