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Zhou J, Zhu Y, Ai D, Zhou M, Li H, Li G, Zheng L, Song J. Advanced glycation end products impair bone marrow mesenchymal stem cells osteogenesis in periodontitis with diabetes via FTO-mediated N 6-methyladenosine modification of sclerostin. J Transl Med 2023; 21:781. [PMID: 37925419 PMCID: PMC10625275 DOI: 10.1186/s12967-023-04630-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/14/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Diabetes mellitus (DM) and periodontitis are two prevalent diseases with mutual influence. Accumulation of advanced glycation end products (AGEs) in hyperglycemia may impair cell function and worsen periodontal conditions. N6-methyladenosine (m6A) is an important post-transcriptional modification in RNAs that regulates cell fate determinant and progression of diseases. However, whether m6A methylation participates in the process of periodontitis with diabetes is unclear. Thus, we aimed to investigate the effects of AGEs on bone marrow mesenchymal stem cells (BMSCs), elucidate the m6A modification mechanism in diabetes-associated periodontitis. METHODS Periodontitis with diabetes were established by high-fat diet/streptozotocin injection and silk ligation. M6A modifications in alveolar bone were demonstrated by RNA immunoprecipitation sequence. BMSCs treated with AGEs, fat mass and obesity associated (FTO) protein knockdown and sclerostin (SOST) interference were evaluated by quantitative polymerase chain reaction, western blot, immunofluorescence, alkaline phosphatase and Alizarin red S staining. RESULTS Diabetes damaged alveolar bone regeneration was validated in vivo. In vitro experiments showed AGEs inhibited BMSCs osteogenesis and influenced the FTO expression and m6A level in total RNA. FTO knockdown increased the m6A levels and reversed the AGE-induced inhibition of BMSCs differentiation. Mechanically, FTO regulated m6A modification on SOST transcripts, and AGEs affected the binding of FTO to SOST transcripts. FTO knockdown accelerated the degradation of SOST mRNA in presence of AGEs. Interference with SOST expression in AGE-treated BMSCs partially rescued the osteogenesis by activating Wnt Signaling. CONCLUSIONS AGEs impaired BMSCs osteogenesis by regulating SOST in an m6A-dependent manner, presenting a promising method for bone regeneration treatment of periodontitis with diabetes.
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Affiliation(s)
- Jie Zhou
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yanlin Zhu
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Dongqing Ai
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Mengjiao Zhou
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Han Li
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Guangyue Li
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Leilei Zheng
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jinlin Song
- College of Stomatology, Chongqing Medical University, Chongqing, People's Republic of China.
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China.
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
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Fu X, Liu B, Sun J, Zhang X, Zhu Z, Wang H, Xiao A, Gan X. Perturbation of mitochondrial dynamics links to the aggravation of periodontitis by diabetes. J Histotechnol 2023; 46:139-150. [PMID: 37184352 DOI: 10.1080/01478885.2023.2188705] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 05/16/2023]
Abstract
Diabetes and periodontitis are prevalent diseases that considerably impact global economy and diabetes is a major risk factor of periodontitis. Mitochondrial dynamic alterations are involved in many diseases including diabetes and this study aims to evaluate their relevance with diabetes aggravated periodontitis. Sixty mice are randomly divided into 4 groups: control, periodontitis, diabetes and diabetic periodontitis. Periodontitis severity is evaluated by alveolar bone loss, inflammation and oxidative stress status. Mitochondrial structural and functional defects are evaluated by the mitochondrial fission/fusion events, mitochondrial reactive oxygen species (ROS) accumulation, complex activities and adenosine triphosphate (ATP) production. Advanced glycation end product (AGE) and Porphyromonas gingivalis are closely related to periodontitis occurrence and development. Human gingival fibroblast cells (HGF-1) are used to investigate the AGE role and lipopolysaccharide (LPS) from Porphyromonas gingivalis (P-LPS) in aggravating diabetic periodontitis by mitochondrial dynamic and function alterations. In vivo, diabetic mice with periodontitis show severe bone loss, increased inflammation and oxidative stress accumulation. Among mice with periodontitis, diabetic mice show worse mitochondrial dynamic perturbations than lean mice, along with fusion protein levels inducing more mitochondrial fission in gingival tissue. In vitro, AGEs and P-LPS co-treatment causes severe.
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Affiliation(s)
- Xinliang Fu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Beilei Liu
- Department of Oral Implantology, Shanghai Ninth Peoples' Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Jiyu Sun
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xidan Zhang
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zhuoli Zhu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hao Wang
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Anqi Xiao
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xueqi Gan
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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3
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Zhao M, Xie Y, Gao W, Li C, Ye Q, Li Y. Diabetes mellitus promotes susceptibility to periodontitis-novel insight into the molecular mechanisms. Front Endocrinol (Lausanne) 2023; 14:1192625. [PMID: 37664859 PMCID: PMC10469003 DOI: 10.3389/fendo.2023.1192625] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 07/24/2023] [Indexed: 09/05/2023] Open
Abstract
Diabetes mellitus is a main risk factor for periodontitis, but until now, the underlying molecular mechanisms remain unclear. Diabetes can increase the pathogenicity of the periodontal microbiota and the inflammatory/host immune response of the periodontium. Hyperglycemia induces reactive oxygen species (ROS) production and enhances oxidative stress (OS), exacerbating periodontal tissue destruction. Furthermore, the alveolar bone resorption damage and the epigenetic changes in periodontal tissue induced by diabetes may also contribute to periodontitis. We will review the latest clinical data on the evidence of diabetes promoting the susceptibility of periodontitis from epidemiological, molecular mechanistic, and potential therapeutic targets and discuss the possible molecular mechanistic targets, focusing in particular on novel data on inflammatory/host immune response and OS. Understanding the intertwined pathogenesis of diabetes mellitus and periodontitis can explain the cross-interference between endocrine metabolic and inflammatory diseases better, provide a theoretical basis for new systemic holistic treatment, and promote interprofessional collaboration between endocrine physicians and dentists.
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Affiliation(s)
- Mingcan Zhao
- Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Yuandong Xie
- Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Wenjia Gao
- Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Chunwang Li
- Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Qiang Ye
- Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Yi Li
- Department of Pediatric Dentistry, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
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Plemmenos G, Piperi C. Pathogenic Molecular Mechanisms in Periodontitis and Peri-Implantitis: Role of Advanced Glycation End Products. Life (Basel) 2022; 12:life12020218. [PMID: 35207505 PMCID: PMC8874682 DOI: 10.3390/life12020218] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/19/2022] [Accepted: 01/28/2022] [Indexed: 12/17/2022] Open
Abstract
Advanced Glycation End Products (AGEs), the products of the non-enzymatic oxidation of proteins, nucleic acids, and lipids, are accumulated in periodontal tissues under hyperglycemic conditions such as Diabetes Mellitus (DM) and are responsible for sustained periodontal destruction. AGEs mediate their intracellular effects either directly or indirectly through receptor binding (via RAGE) in all types of periodontal ligament cells (osteocytes, gingival fibroblasts, stem cells, epithelial cells), indicating an important target for intervention. In combination with lipopolysaccharides (LPS) from Porphyromonas gingivalis (Pg), the negative impact of AGEs on periodontal tissue is further enhanced and accentuated. In addition, AGE accumulation is evident in peri-implantitis, yet through different underlying molecular mechanisms. Novel therapeutic approaches targeting the effects of AGEs in periodontal ligament cells show beneficial effects in pre-clinical studies. Herein, we provide evidence on the detrimental role of AGE accumulation in oral cavity tissues and their associated signaling pathways in periodontitis and peri-implantitis to further highlight the significance of oral or topical use of AGE blockers or inhibitors along with dental biofilms’ removal and DM regulation in patients’ management.
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Affiliation(s)
- Grigorios Plemmenos
- School of Dentistry, National and Kapodistrian University of Athens, Goudi, 11527 Athens, Greece; or
| | - Christina Piperi
- School of Dentistry, National and Kapodistrian University of Athens, Goudi, 11527 Athens, Greece; or
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Goudi, 11527 Athens, Greece
- Correspondence: ; Tel.: +30-2107462610
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Gao L, Liu C, Hu P, Wang N, Bao X, Wang B, Wang K, Li Y, Xue P. The role of advanced glycation end products in fracture risk assessment in postmenopausal type 2 diabetic patients. Front Endocrinol (Lausanne) 2022; 13:1013397. [PMID: 36578954 PMCID: PMC9790927 DOI: 10.3389/fendo.2022.1013397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE The objective of this study was to analyze the quantitative association between advanced glycation end products (AGEs) and adjusted FRAX by rheumatoid arthritis (FRAX-RA) in postmenopausal type 2 diabetic (T2D) patients. The optimal cutoff value of AGEs was also explored, which was aimed at demonstrating the potential value of AGEs on evaluating osteoporotic fracture risk in postmenopausal T2D patients. METHODS We conducted a cross-sectional study including 366 postmenopausal participants (180 T2D patients [DM group] and 186 non-T2D individuals [NDM group]). All the subjects in each group were divided into three subgroups according to BMD. Physical examination, dual-energy x-ray absorptiometry (DXA), and serum indicators (including serum AGEs, glycemic parameters, bone turnover markers and inflammation factors) were examined. The relationship between FRAX-RA, serum laboratory variables, and AGEs were explored. The optimal cutoff value of AGEs to predict the risk of osteoporotic fracture was also investigated. RESULTS Adjusting the FRAX values with rheumatoid arthritis (RA) of T2D patients reached a significantly increased MOF-RA and an increasing trend of HF-RA. AGEs level was higher in the DM group compared to the NDMs, and was positively correlated with MOF-RA (r=0.682, P<0.001) and HF-RA (r=0.677, P<0.001). The receiver operating characteristic curve analysis revealed that the area under the curve was 0.804 (P<0.001), and the optimal AGEs cut-off value was 4.156mmol/L. Subgroup analysis for T2D patients revealed an increase in TGF-β, IL-6 and SCTX in the osteoporosis group, while a decreased PINP in the osteoporosis group compared to the other two subgroups. AGEs were positively associated with FBG, HbA1c, HOMA-IR, S-CTX, IL-6 and TGF-β in T2D patients, and negatively associated with PINP. CONCLUSIONS RA-adjusted FRAX is a relevant clinical tool in evaluating fracture risk of postmenopausal T2D patients. Our study analyzed the relationship between AGEs and FRAX-RA, and explored the threshold value of AGEs for predicting fracture risk in postmenopausal T2D patients. AGEs were also associated with serum bone turnover markers and inflammation factors, indicating that the increasing level of AGEs in postmenopausal T2D patients accelerated the expression of inflammatory factors, which led to bone metabolism disorders and a higher risk of osteoporotic fractures.
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Affiliation(s)
- Liu Gao
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Orthopedic Biomechanics of Hebei Province, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Chang Liu
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Orthopedic Biomechanics of Hebei Province, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Pan Hu
- Trauma Medicine Center, Peking University People’s Hospital, Beijing, China
- National Center for Trauma Medicine, Peking University People's Hospital, Beijing, China
| | - Na Wang
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Orthopedic Biomechanics of Hebei Province, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaoxue Bao
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Orthopedic Biomechanics of Hebei Province, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Bin Wang
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Orthopedic Biomechanics of Hebei Province, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ke Wang
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Orthopedic Biomechanics of Hebei Province, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yukun Li
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Orthopedic Biomechanics of Hebei Province, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- *Correspondence: Peng Xue, ; Yukun Li,
| | - Peng Xue
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Orthopedic Biomechanics of Hebei Province, The Third Hospital of Hebei Medical University, Shijiazhuang, China
- *Correspondence: Peng Xue, ; Yukun Li,
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The Impact of Advanced Glycation End-Products (AGEs) on Proliferation and Apoptosis of Primary Stem Cells: A Systematic Review. Stem Cells Int 2020; 2020:8886612. [PMID: 33281904 PMCID: PMC7685833 DOI: 10.1155/2020/8886612] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 02/06/2023] Open
Abstract
Stem cell-based regenerative therapies hold great promises to treat a wide spectrum of diseases. However, stem cell engraftment and survival are still challenging due to an unfavorable transplantation environment. Advanced glycation end-products (AGEs) can contribute to the generation of these harmful conditions. AGEs are a heterogeneous group of glycated products, nonenzymatically formed when proteins and/or lipids become glycated and oxidized. Our typical Western diet as well as cigarettes contain high AGEs content. AGEs are also endogenously formed in our body and accumulate with senescence and in pathological situations. Whether AGEs have an impact on stem cell viability in regenerative medicine remains unclear, and research on the effect of AGEs on stem cell proliferation and apoptosis is still ongoing. Therefore, this systematic review provides a clear overview of the effects of glycated proteins on cell viability in various types of primary isolated stem cells used in regenerative medicine.
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Kido R, Hiroshima Y, Kido JI, Ikuta T, Sakamoto E, Inagaki Y, Naruishi K, Yumoto H. Advanced glycation end-products increase lipocalin 2 expression in human oral epithelial cells. J Periodontal Res 2020; 55:539-550. [PMID: 32170733 DOI: 10.1111/jre.12741] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 01/11/2020] [Accepted: 02/10/2020] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND OBJECTIVES Diabetes mellitus (DM), a risk factor of periodontal diseases, exacerbates the pathological condition of periodontitis. A major factor for DM complications is advanced glycation end-products (AGEs) that accumulate in periodontal tissues and cause inflammatory events. Lipocalin 2 (LCN2) is an antimicrobial peptide and inflammation-related factor, and LCN2 levels increase in DM. In this study, the effects of AGEs and lipopolysaccharide of Porphyromonas gingivalis (P g-LPS) on LCN2 expression in human oral epithelial cells (TR146 cells) and the role of secreted LCN2 in periodontitis with DM were investigated. MATERIAL AND METHODS TR146 cells were cultured with AGEs (AGE2) and control BSA and cell viability was estimated, or with P g-LPS. Conditioned medium and cell lysates were prepared from cultures of epithelial cells and used for Western blotting and ELISA to analyze LCN2, RAGE, IL-6, MAPK, and NF-κB. RNA was isolated from AGE-treated TR146 cells and differentiated HL-60 (D-HL-60) cells and used for quantitative real-time PCR to examine the expression of LCN2 and interleukin-6 (IL-6) mRNAs. RAGE- and LCN2-siRNAs (siRAGE, siLCN2) were transfected into epithelial cells, and AGE-induced LCN2 expression was investigated. D-HL-60 cells were co-cultured with TR146 cells that were transfected with siLCN2 and treated with AGEs, and IL-6 mRNA expression in D-HL-60 cells and cell migration was investigated. RESULTS AGEs increased the expression levels of LCN2 and IL-6 in oral epithelial cells. siRAGE and a neutralizing antibody for RAGE inhibited AGE-induced LCN2 expression. AGEs stimulated the phosphorylation of ERK, p38, and NF-κB in epithelial cells, and their inhibitors suppressed AGE-induced LCN2 expression. In contrast, P g-LPS did not show a significant increase in LCN2 level in TR146 cells that expressed Toll-like receptor 2. In co-culture experiments, AGE-induced LCN2 inhibited IL-6 mRNA expression in D-HL-60 cells, and LCN2 knockdown in epithelial cells suppressed HL-60 cell migration. CONCLUSION These results suggested that AGEs increase LCN2 expression via RAGE, MAPK, and NF-κB signaling pathways in oral epithelial cells, and secreted LCN2 may influence the pathological condition of periodontitis with DM.
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Affiliation(s)
- Rie Kido
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuka Hiroshima
- Department of Oral Microbiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Jun-Ichi Kido
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takahisa Ikuta
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Eijiro Sakamoto
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuji Inagaki
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Koji Naruishi
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiromichi Yumoto
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Park JW. Positive regulation of Porphyromonas gingivalis lipopolysaccharide-stimulated osteoblast functions by strontium modification of an SLA titanium implant surface. J Biomater Appl 2019; 34:802-811. [PMID: 31558092 DOI: 10.1177/0885328219878836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jin-Woo Park
- School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
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9
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Sakamoto E, Kido JI, Takagi R, Inagaki Y, Naruishi K, Nagata T, Yumoto H. Advanced glycation end-product 2 and Porphyromonas gingivalis lipopolysaccharide increase sclerostin expression in mouse osteocyte-like cells. Bone 2019; 122:22-30. [PMID: 30735798 DOI: 10.1016/j.bone.2019.02.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 01/23/2019] [Accepted: 02/04/2019] [Indexed: 02/06/2023]
Abstract
Sclerostin is a secreted glycoprotein that is mainly expressed in osteocytes, exerts negative effects on bone formation, and is present at elevated levels in diabetes mellitus (DM). Periodontitis is an infectious disease caused by periodontopathic bacteria, a complication of DM, and sometimes associated with severe inflammation and alveolar bone resorption. Advanced glycation end-products (AGEs) are a major pathogen in DM complications and adversely influence periodontitis in DM patients. In the present study, the effects of AGE2 and Porphyromonas gingivalis lipopolysaccharide (P-LPS) on the expression of sclerostin in mouse osteocyte-like cells (MLO-Y4-A2 cells) and its function in osteoblast differentiation were investigated. AGE2 and P-LPS up-regulated the expressions of receptor of AGE (RAGE) and Toll-like receptor 2 (TLR2), respectively, and significantly up-regulated that of sclerostin and interleukin 6 (IL-6) in osteocytes. Sclerostin, RAGE and TLR2 levels were synergistically increased by AGE2 and P-LPS. The siRNAs of RAGE and TLR2 significantly inhibited AGE2- and P-LPS-induced sclerostin expression. AGE2 up-regulated sclerostin expression in osteocyte-like cells via the RAGE, ERK and JNK, and NF-κB signal pathways. On the other hand, P-LPS elevated sclerostin levels via the TLR2, JNK and p38, and NF-κB signal pathways. When osteocytes pre-treated with AGE2 and P-LPS and osteoblastic cells (MC3T3-E1) were co-cultured in the medium with a sclerostin-neutralizing antibody, AGE2- and P-LPS-induced decreases in alkaline phosphatase activity and Runx2 expression in osteoblastic cells were significantly inhibited by the sclerostin-neutralizing antibody. These results suggest that AGE2 and P-LPS influence bone metabolism and inflammation through the regulation of sclerostin expression, and may aggravate periodontitis with DM.
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Affiliation(s)
- Eijiro Sakamoto
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Jun-Ichi Kido
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
| | - Ryosuke Takagi
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuji Inagaki
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Koji Naruishi
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Toshihiko Nagata
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiromichi Yumoto
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Ilea A, Băbţan AM, Boşca BA, Crişan M, Petrescu NB, Collino M, Sainz RM, Gerlach JQ, Câmpian RS. Advanced glycation end products (AGEs) in oral pathology. Arch Oral Biol 2018; 93:22-30. [DOI: 10.1016/j.archoralbio.2018.05.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 04/07/2018] [Accepted: 05/17/2018] [Indexed: 02/08/2023]
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11
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Coyac BR, Detzen L, Doucet P, Baroukh B, Llorens A, Bonnaure-Mallet M, Gosset M, Barritault D, Colombier ML, Saffar JL. Periodontal reconstruction by heparan sulfate mimetic-based matrix therapy in Porphyromonas gingivalis-infected mice. Heliyon 2018; 4:e00719. [PMID: 30101201 PMCID: PMC6083019 DOI: 10.1016/j.heliyon.2018.e00719] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/22/2018] [Accepted: 07/31/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Periodontitis is a set of chronic inflammatory diseases affecting the supporting structures of the teeth, during which a persistent release of lytic enzymes and inflammatory mediators causes a self-perpetuating vicious cycle of tissue destruction and repair. A matrix-based therapy using a heparan sulfate (HS) analogue called ReGeneraTing Agent (RGTA) replaces destroyed HS by binding to available heparin-binding sites of structural molecules, leading to restoration of tissue homeostasis in several inflammatory tissue injuries, including a hamster periodontitis model. METHODS The ability of RGTA to restore the periodontium was tested in a model of Porphyromonas gingivalis-infected Balb/cByJ mice. After 12 weeks of disease induction, mice were treated weekly with saline or RGTA (1.5 mg/kg) for 8 weeks. Data were analyzed by histomorphometry. RESULTS RGTA treatment restored macroscopic bone loss. This was related to (1) a significant reduction in gingival inflammation assessed by a decrease in infiltrated connective tissue, particularly in cells expressing interleukin 1ß, an inflammatory mediator selected as a marker of inflammation; (2) a normalization of bone resorption parameters, i.e. number, activation and activity of osteoclasts, and number of preosteoclasts; (3) a powerful bone formation reaction. The Sharpey's fibers of the periodontal ligament recovered their alkaline phosphatase coating. This was obtained while P. gingivalis infection was maintained throughout the treatment period. CONCLUSIONS RGTA treatment was able to control the chronic inflammation characteristic of periodontitis and blocked destruction of periodontal structures. It ensured tissue regeneration with recovery of the periodontium's anatomy.
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Affiliation(s)
- Benjamin R. Coyac
- EA2496 Laboratoire Pathologies, Imagerie et Biothérapies oro-faciales, Faculté de Chirurgie Dentaire, Université Paris Descartes, Sorbonne Paris Cité, Montrouge, France
| | - Laurent Detzen
- EA2496 Laboratoire Pathologies, Imagerie et Biothérapies oro-faciales, Faculté de Chirurgie Dentaire, Université Paris Descartes, Sorbonne Paris Cité, Montrouge, France
- Assistance Publique – Hôpitaux de Paris, Paris, France
| | - Philippe Doucet
- EA2496 Laboratoire Pathologies, Imagerie et Biothérapies oro-faciales, Faculté de Chirurgie Dentaire, Université Paris Descartes, Sorbonne Paris Cité, Montrouge, France
- Private Practice in Periodontics, Paris, France
| | - Brigitte Baroukh
- EA2496 Laboratoire Pathologies, Imagerie et Biothérapies oro-faciales, Faculté de Chirurgie Dentaire, Université Paris Descartes, Sorbonne Paris Cité, Montrouge, France
| | - Annie Llorens
- EA2496 Laboratoire Pathologies, Imagerie et Biothérapies oro-faciales, Faculté de Chirurgie Dentaire, Université Paris Descartes, Sorbonne Paris Cité, Montrouge, France
| | | | - Marjolaine Gosset
- EA2496 Laboratoire Pathologies, Imagerie et Biothérapies oro-faciales, Faculté de Chirurgie Dentaire, Université Paris Descartes, Sorbonne Paris Cité, Montrouge, France
- Assistance Publique – Hôpitaux de Paris, Paris, France
| | - Denis Barritault
- EA2496 Laboratoire Pathologies, Imagerie et Biothérapies oro-faciales, Faculté de Chirurgie Dentaire, Université Paris Descartes, Sorbonne Paris Cité, Montrouge, France
- OTR3, Paris, France
| | - Marie-Laure Colombier
- EA2496 Laboratoire Pathologies, Imagerie et Biothérapies oro-faciales, Faculté de Chirurgie Dentaire, Université Paris Descartes, Sorbonne Paris Cité, Montrouge, France
- Assistance Publique – Hôpitaux de Paris, Paris, France
| | - Jean-Louis Saffar
- EA2496 Laboratoire Pathologies, Imagerie et Biothérapies oro-faciales, Faculté de Chirurgie Dentaire, Université Paris Descartes, Sorbonne Paris Cité, Montrouge, France
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Thomas CJ, Cleland TP, Sroga GE, Vashishth D. Accumulation of carboxymethyl-lysine (CML) in human cortical bone. Bone 2018; 110:128-133. [PMID: 29408699 PMCID: PMC5878737 DOI: 10.1016/j.bone.2018.01.028] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 01/22/2018] [Accepted: 01/22/2018] [Indexed: 01/22/2023]
Abstract
Advanced glycation end-products (AGEs) are a category of post translational modification associated with the degradation of the structural properties of multiple different types of tissues. Typically, AGEs are the result of a series of post-translational modification reactions between sugars and proteins through a process known as non-enzymatic glycation (NEG). Increases in the rate of NEG of bone tissue are associated with type 2 diabetes and skeletal fragility. Current methods of assessing NEG and its impact on bone fracture risk involve measurement of pentosidine or total fluorescent AGEs (fAGEs). However, pentosidine represents only a small fraction of possible fAGEs present in bone, and neither pentosidine nor total fAGE measurement accounts for non-fluorescent AGEs, which are known to form in significant amounts in skin and other collagenous tissues. Carboxymethyl-lysine (CML) is a non-fluorescent AGE that is often measured and has been shown to accumulate in tissues such as skin, heart, arteries, and intervertebral disks, but is currently not assessed in bone. Here we show the localization of CML to collagen I using mass spectrometry for the first time in human bone. We then present a new method using demineralization followed by heating and trypsin digestion to measure CML content in human bone and demonstrate that CML in bone is 40-100 times greater than pentosidine (the current most commonly used marker of AGEs in bone). We then establish the viability of CML as a measurable AGE in bone by showing that levels of CML, obtained from bone using this technique, increase with age (p<0.05) and are correlated with previously reported measures of bone toughness. Thus, CML is a viable non-fluorescent AGE target to assess AGE accumulation and fragility in bone. The method developed here to extract and measure CML from human bone could facilitate the development of a new diagnostic assay to evaluate fracture risk and potentially lead to new therapeutic approaches to address bone fragility.
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Affiliation(s)
- Corinne J Thomas
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12182, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12182, USA
| | - Timothy P Cleland
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12182, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12182, USA
| | - Grazyna E Sroga
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12182, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12182, USA
| | - Deepak Vashishth
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12182, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12182, USA.
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13
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Wakabayashi T, Yagami K, Sadaoka S, Mori K, Komatsu S, Nagasawa S, Udagawa N. CO 2 Laser Irradiation Restores Collagen and VEGF Expressions of HPdLF on LPS Contaminated Titanium Surface. J HARD TISSUE BIOL 2018. [DOI: 10.2485/jhtb.27.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Tsuneo Wakabayashi
- Department of Oral Health Promotion, Graduate School of Oral Medicine, Matsumoto Dental University
| | - Kimitoshi Yagami
- Department of Oral Health Promotion, Graduate School of Oral Medicine, Matsumoto Dental University
| | - Sunao Sadaoka
- Department of Oral Health, School of Dentistry, Matsumoto Dental University
| | - Kozue Mori
- Department of Oral Health Promotion, Graduate School of Oral Medicine, Matsumoto Dental University
| | - Saho Komatsu
- Department of Oral Health Promotion, Graduate School of Oral Medicine, Matsumoto Dental University
| | - Sakae Nagasawa
- Department of Dental Materials, School of Dentistry, Matsumoto Dental University
| | - Nobuyuki Udagawa
- Department of Biochemistry, School of Dentistry, Matsumoto Dental University
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14
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Nonaka K, Kajiura Y, Bando M, Sakamoto E, Inagaki Y, Lew JH, Naruishi K, Ikuta T, Yoshida K, Kobayashi T, Yoshie H, Nagata T, Kido J. Advanced glycation end-products increase IL-6 and ICAM-1 expression via RAGE, MAPK and NF-κB pathways in human gingival fibroblasts. J Periodontal Res 2017; 53:334-344. [DOI: 10.1111/jre.12518] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/25/2017] [Indexed: 12/17/2022]
Affiliation(s)
- K. Nonaka
- Department of Periodontology and Endodontology; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - Y. Kajiura
- Department of Periodontology and Endodontology; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - M. Bando
- Department of Periodontology and Endodontology; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - E. Sakamoto
- Department of Periodontology and Endodontology; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - Y. Inagaki
- Department of Periodontology and Endodontology; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - J. H. Lew
- Department of Periodontology and Endodontology; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - K. Naruishi
- Department of Periodontology and Endodontology; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - T. Ikuta
- Department of Periodontology and Endodontology; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - K. Yoshida
- Department of Oral Healthcare Education; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - T. Kobayashi
- General Dentistry and Clinical Education Unit; Niigata University Medical and Dental Hospital; Niigata Japan
- Division of Periodontology; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - H. Yoshie
- Division of Periodontology; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - T. Nagata
- Department of Periodontology and Endodontology; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - J. Kido
- Department of Periodontology and Endodontology; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
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15
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Hiroshima Y, Sakamoto E, Yoshida K, Abe K, Naruishi K, Yamamoto T, Shinohara Y, Kido J, Geczy CL. Advanced glycation end‐products and
Porphyromonas gingivalis
lipopolysaccharide increase calprotectin expression in human gingival epithelial cells. J Cell Biochem 2017; 119:1591-1603. [DOI: 10.1002/jcb.26319] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 08/02/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Yuka Hiroshima
- Institute for Genome ResearchTokushima UniversityTokushimaJapan
| | - Eijiro Sakamoto
- Department of Periodontology and Endodontology, Institute of Biomedical SciencesTokushima University Graduate SchoolTokushimaJapan
| | - Kaya Yoshida
- Department of Oral Healthcare Education, Institute of Biomedical SciencesTokushima University Graduate SchoolTokushimaJapan
| | | | - Koji Naruishi
- Department of Periodontology and Endodontology, Institute of Biomedical SciencesTokushima University Graduate SchoolTokushimaJapan
| | | | - Yasuo Shinohara
- Institute for Genome ResearchTokushima UniversityTokushimaJapan
| | - Jun‐ichi Kido
- Department of Periodontology and Endodontology, Institute of Biomedical SciencesTokushima University Graduate SchoolTokushimaJapan
| | - Carolyn L. Geczy
- School of Medical SciencesUniversity of New South WalesSydneyNew South WalesAustralia
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16
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Liu G, Deng J, Zhang Q, Song W, Chen S, Lou X, Zhang P, Pan K. Porphyromonas gingivalisLipopolysaccharide Stimulation of Vascular Smooth Muscle Cells Activates Proliferation and Calcification. J Periodontol 2016; 87:828-36. [DOI: 10.1902/jop.2016.150602] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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