1
|
Bouvard B, Mabilleau G. Gut hormones and bone homeostasis: potential therapeutic implications. Nat Rev Endocrinol 2024:10.1038/s41574-024-01000-z. [PMID: 38858581 DOI: 10.1038/s41574-024-01000-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/14/2024] [Indexed: 06/12/2024]
Abstract
Bone resorption follows a circadian rhythm, with a marked reduction in circulating markers of resorption (such as carboxy-terminal telopeptide region of collagen type I in serum) in the postprandial period. Several gut hormones, including glucose-dependent insulinotropic polypeptide (GIP), glucagon-like peptide 1 (GLP1) and GLP2, have been linked to this effect in humans and rodent models. These hormones are secreted from enteroendocrine cells in the gastrointestinal tract in response to a variety of stimuli and effect a wide range of physiological processes within and outside the gut. Single GLP1, dual GLP1-GIP or GLP1-glucagon and triple GLP1-GIP-glucagon receptor agonists have been developed for the treatment of type 2 diabetes mellitus and obesity. In addition, single GIP, GLP1 and GLP2 analogues have been investigated in preclinical studies as novel therapeutics to improve bone strength in bone fragility disorders. Dual GIP-GLP2 analogues have been developed that show therapeutic promise for bone fragility in preclinical studies and seem to exert considerable activity at the bone material level. This Review summarizes the evidence of the action of gut hormones on bone homeostasis and physiology.
Collapse
Affiliation(s)
- Béatrice Bouvard
- Univ Angers, Nantes Université, ONIRIS, Inserm, RMeS UMR 1229, Angers, France
- CHU Angers, Service de Rhumatologie, Angers, France
| | - Guillaume Mabilleau
- Univ Angers, Nantes Université, ONIRIS, Inserm, RMeS UMR 1229, Angers, France.
- CHU Angers, Departement de Pathologie Cellulaire et Tissulaire, Angers, France.
| |
Collapse
|
2
|
Sun Y, Yin Y, Yang S, Ai D, Qin H, Xia X, Xu X, Song J. Lipotoxicity: The missing link between diabetes and periodontitis? J Periodontal Res 2024; 59:431-445. [PMID: 38419425 DOI: 10.1111/jre.13242] [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: 05/03/2023] [Revised: 01/10/2024] [Accepted: 01/14/2024] [Indexed: 03/02/2024]
Abstract
Lipotoxicity refers to the accumulation of lipids in tissues other than adipose tissue (body fat). It is one of the major pathophysiological mechanisms responsible for the progression of diabetes complications such as non-alcoholic fatty liver disease and diabetic nephropathy. Accumulating evidence indicates that lipotoxicity also contributes significantly to the toxic effects of diabetes on periodontitis. Therefore, we reviewed the current in vivo, in vitro, and clinical evidence of the detrimental effects of lipotoxicity on periodontitis, focusing on its molecular mechanisms, especially oxidative and endoplasmic reticulum stress, inflammation, ceramides, adipokines, and programmed cell death pathways. By elucidating potential therapeutic strategies targeting lipotoxicity and describing their associated mechanisms and clinical outcomes, including metformin, statins, liraglutide, adiponectin, and omega-3 PUFA, this review seeks to provide a more comprehensive and effective treatment framework against diabetes-associated periodontitis. Furthermore, the challenges and future research directions are proposed, aiming to contribute to a more profound understanding of the impact of lipotoxicity on periodontitis.
Collapse
Affiliation(s)
- Yu Sun
- College of Stomatology, Chongqing Medical University, Chongqing, 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
| | - Yuanyuan Yin
- College of Stomatology, Chongqing Medical University, Chongqing, 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
| | - Sihan Yang
- College of Stomatology, Chongqing Medical University, Chongqing, 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, 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 Qin
- College of Stomatology, Chongqing Medical University, Chongqing, 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
| | - Xuyun Xia
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xiaohui Xu
- College of Stomatology, Chongqing Medical University, Chongqing, 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, 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
| |
Collapse
|
3
|
Liu X, Wan X, Sui B, Hu Q, Liu Z, Ding T, Zhao J, Chen Y, Wang ZL, Li L. Piezoelectric hydrogel for treatment of periodontitis through bioenergetic activation. Bioact Mater 2024; 35:346-361. [PMID: 38379699 PMCID: PMC10876489 DOI: 10.1016/j.bioactmat.2024.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 01/26/2024] [Accepted: 02/07/2024] [Indexed: 02/22/2024] Open
Abstract
The impaired differentiation ability of resident cells and disordered immune microenvironment in periodontitis pose a huge challenge for bone regeneration. Herein, we construct a piezoelectric hydrogel to rescue the impaired osteogenic capability and rebuild the regenerative immune microenvironment through bioenergetic activation. Under local mechanical stress, the piezoelectric hydrogel generated piezopotential that initiates osteogenic differentiation of inflammatory periodontal ligament stem cells (PDLSCs) via modulating energy metabolism and promoting adenosine triphosphate (ATP) synthesis. Moreover, it also reshapes an anti-inflammatory and pro-regenerative niche through switching M1 macrophages to the M2 phenotype. The synergy of tilapia gelatin and piezoelectric stimulation enhances in situ regeneration in periodontal inflammatory defects of rats. These findings pave a new pathway for treating periodontitis and other immune-related bone defects through piezoelectric stimulation-enabled energy metabolism modulation and immunomodulation.
Collapse
Affiliation(s)
- Xin Liu
- Department of Dental Materials, Shanghai Biomaterials Research & Testing Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, PR China
| | - Xingyi Wan
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, PR China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Baiyan Sui
- Department of Dental Materials, Shanghai Biomaterials Research & Testing Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, PR China
| | - Quanhong Hu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, PR China
| | - Zhirong Liu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, PR China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Tingting Ding
- Department of Dental Materials, Shanghai Biomaterials Research & Testing Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, PR China
| | - Jiao Zhao
- Department of Dental Materials, Shanghai Biomaterials Research & Testing Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, PR China
| | - Yuxiao Chen
- Department of Dental Materials, Shanghai Biomaterials Research & Testing Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, PR China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, PR China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Linlin Li
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, PR China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| |
Collapse
|
4
|
Gheonea TC, Șurlin P, Nicolae FM, Gheorghe DN, Popescu DM, Rogoveanu I. Dipeptidyl-Peptidase-4 and Glucagon-like-Peptide-1, a Link in the Connection between Periodontitis and Diabetes Mellitus-What Do We Know So Far?-A Scoping Review. J Clin Med 2024; 13:903. [PMID: 38337597 PMCID: PMC10856081 DOI: 10.3390/jcm13030903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024] Open
Abstract
Periodontitis is a common condition affecting the tissues surrounding and supporting teeth. In addition to oral health concerns, periodontal disease increases the chance of developing systemic illnesses including type 2 diabetes mellitus. Porphyromonas gingivalis, a key-stone pathogen that has been linked to the pathophysiology of periodontal disease, can generate a series of dipeptide producing exopeptidases, dipeptidyl peptidases (DPP). DPP-4 levels in gingival crevicular fluid have been shown to increase during active periodontal disease, which may lead to their association with the disease's progression. Following oral glucose administration, mice injected with DPP-4 had higher blood glucose than the control group. DPP-4 inhibitors are used to treat patients with type 2 diabetes mellitus in order to extend the half-life of incretins. Elevated glucagon-like peptide-1 (GLP-1) levels following periodontal therapy could be considered new and applicable real-world evidence confirming the experimental findings of a beneficial interaction between oral microbiota and incretin axis. GLP-1 receptor agonist exendin-4 enhanced the osteoblast proliferation and development of these stem cells and inhibited the effects of glucose on the cells. In addition to lowering blood sugar, liraglutide, a GLP-1 receptor agonist, also possesses anti-inflammatory and bone-protective properties. These findings support the use of GLP-1 in the management and prevention of diabetic periodontitis.
Collapse
Affiliation(s)
- Theodora Claudia Gheonea
- Center for IBD Patients, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, 200345 Craiova, Romania
| | - Petra Șurlin
- Department of Periodontology, Research Center of Periodontal-Systemic Interactions, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania (D.M.P.)
| | - Flavia Mirela Nicolae
- Department of Periodontology, Research Center of Periodontal-Systemic Interactions, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania (D.M.P.)
| | - Dorin Nicolae Gheorghe
- Department of Periodontology, Research Center of Periodontal-Systemic Interactions, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania (D.M.P.)
| | - Dora Maria Popescu
- Department of Periodontology, Research Center of Periodontal-Systemic Interactions, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania (D.M.P.)
| | - Ion Rogoveanu
- Department of Gastroenterology, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| |
Collapse
|
5
|
Herrou J, Mabilleau G, Lecerf JM, Thomas T, Biver E, Paccou J. Narrative Review of Effects of Glucagon-Like Peptide-1 Receptor Agonists on Bone Health in People Living with Obesity. Calcif Tissue Int 2024; 114:86-97. [PMID: 37999750 DOI: 10.1007/s00223-023-01150-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/14/2023] [Indexed: 11/25/2023]
Abstract
Glucagon-like peptide-1 Receptor agonists (GLP-1Ras) such as liraglutide and semaglutide have been recently approved as medications for chronic weight management in people living with obesity (PwO); GLP-1 may enhance bone metabolism and improve bone quality. However, the effects of GLP-1Ras on skeletal health remain to be determined and that's the purpose of this narrative review. Nevertheless, bone consequences of intentional weight loss interventions in PwO are well known: (i) significant weight loss induced by caloric restriction and bariatric surgery results in accelerated bone turnover and bone loss, and (ii) unlike caloric restriction interventions, PwO experience a substantial deterioration in bone microarchitecture and strength associated with an increased risk of fracture after bariatric surgery especially malabsorptive procedures. Liraglutide seems to have a positive effect on bone material properties despite significant weight loss in several rodent models. However, most of positive effects on bone mineral density and microarchitecture were observed at concentration much higher than approved for obesity care in humans. No data have been reported in preclinical models with semaglutide. The current evidence of the effects of GLP-1Ra on bone health in PwO is limited. Indeed, studies on the use of GLP-1Ra mostly included patients with diabetes who were administered a dose used in this condition, did not have adequate bone parameters as primary endpoints, and had short follow-up periods. Further studies are needed to investigate the bone impact of GLP-1Ra, dual- and triple-receptor agonists for GLP-1, glucose-dependent insulin releasing polypeptide (GIP), and glucagon in PwO.
Collapse
Affiliation(s)
- Julia Herrou
- Service de Rhumatologie, Inserm U 1153, AP-HP Centre, Hôpital Cochin, Université de Paris, Paris, France
| | - Guillaume Mabilleau
- ONIRIS, Inserm, RMeS, UMR 1229, SFR ICAT, Univ Angers, Nantes Université, Angers, France
| | - Jean-Michel Lecerf
- Department of Nutrition and Physical Activity, Institut Pasteur de Lille, Lille, France
| | - Thierry Thomas
- Department of Rheumatology, Hôpital Nord, Centre Hospitalier Universitaire (CHU) Saint-Etienne, Inserm U1059, Lyon University, Saint-Etienne, France
| | - Emmanuel Biver
- Service of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Julien Paccou
- Department of Rheumatology, CHU Lille, MABlab ULR 4490, Univ. Lille, 59000, Lille, France.
| |
Collapse
|
6
|
Wang Y, Liu H, Zhang Z. Recent Advance in Regulatory Effect of GRP120 on Bone Metabolism. Aging Dis 2023; 14:1714-1727. [PMID: 37196107 PMCID: PMC10529742 DOI: 10.14336/ad.2023.0216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/16/2023] [Indexed: 05/19/2023] Open
Abstract
The link between fatty acids and bone metabolism is complex and can be direct and indirect. This link has been reported in different types of bone cells and various stages of bone metabolism. G-protein coupled receptor 120 (GPR120), also called free fatty acid receptor 4 (FFAR4), is a member of the recently discovered G protein-coupled receptor family that can interact with both long-chain saturated fatty acids (C14-C18) and long-chain unsaturated fatty acids (C16-C22). Research shows that GPR120 regulates processes in different types of bone cells, directly or indirectly affecting bone metabolism. Our research reviewed the literature on the effects of GPR120 on bone marrow mesenchymal stem cells (BMMSCs), osteoblasts, osteoclasts, and chondrocytes, focusing on the research findings regarding the mechanism by which GPR120 alters specific bone metabolic diseases-osteoporosis and osteoarthritis. The data reviewed here provide a basis for clinical and basic research into the role of GPR120 on bone metabolic diseases.
Collapse
Affiliation(s)
| | - Haixia Liu
- Institute of Basic Theory for Chinese Medicine, Chinese Academy of Chinese Medical Sciences, Beijing, China.
| | - Zhiguo Zhang
- Institute of Basic Theory for Chinese Medicine, Chinese Academy of Chinese Medical Sciences, Beijing, China.
| |
Collapse
|
7
|
Lee Y, Huang J, Bing Z, Yuan K, Yang J, Cai M, Zhou S, Yang B, Teng W, Li W, Wang Y. pH-responsive cinnamaldehyde-TiO 2 nanotube coating: fabrication and functions in a simulated diabetes condition. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:63. [PMID: 36065035 PMCID: PMC9444834 DOI: 10.1007/s10856-022-06683-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Current evidence has suggested that diabetes increases the risk of implanting failure, and therefore, appropriate surface modification of dental implants in patients with diabetes is crucial. TiO2 nanotube (TNT) has an osteogenic nanotopography, and its osteogenic properties can be further improved by loading appropriate drugs. Cinnamaldehyde (CIN) has been proven to have osteogenic, anti-inflammatory, and anti-bacterial effects. We fabricated a pH-responsive cinnamaldehyde-TiO2 nanotube coating (TNT-CIN) and hypothesized that this coating will exert osteogenic, anti-inflammatory, and anti-bacterial functions in a simulated diabetes condition. TNT-CIN was constructed by anodic oxidation, hydroxylation, silylation, and Schiff base reaction to bind CIN, and its surface characteristics were determined. Conditions of diabetes and diabetes with a concurrent infection were simulated using 22-mM glucose without and with 1-μg/mL lipopolysaccharide, respectively. The viability and osteogenic differentiation of bone marrow mesenchymal stem cells, polarization and secretion of macrophages, and resistance to Porphyromonas gingivalis and Streptococcus mutans were evaluated. CIN was bound to the TNT surface successfully and released better in low pH condition. TNT-CIN showed better osteogenic and anti-inflammatory effects and superior bacterial resistance than TNT in a simulated diabetes condition. These findings indicated that TNT-CIN is a promising, multifunctional surface coating for patients with diabetes needing dental implants. Graphical abstract.
Collapse
Affiliation(s)
- Yichen Lee
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Jingyan Huang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Zhaoxia Bing
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Kaiting Yuan
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Jinghong Yang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Min Cai
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Shiqi Zhou
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Bo Yang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Wei Teng
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Weichang Li
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China.
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China.
| | - Yan Wang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China.
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China.
| |
Collapse
|
8
|
Cai J, Liu J, Yan J, Lu X, Wang X, Li S, Mustafa K, Wang H, Xue Y, Mustafa M, Kantarci A, Xing Z. Impact of Resolvin D1 on the inflammatory phenotype of periodontal ligament cell response to hypoxia. J Periodontal Res 2022; 57:1034-1042. [PMID: 35944267 DOI: 10.1111/jre.13044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 06/22/2022] [Accepted: 07/26/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Periodontal ligament cells (PDLCs) are critical for wound healing and regenerative capacity of periodontal diseases. Within an inflammatory periodontal pocket, a hypoxic environment can aggravate periodontal inflammation, where PDLCs response to the inflammation would change. Resolvin D1 (RvD1) is an endogenous lipid mediator, which can impact intracellular inflammatory pathways of periodontal/oral cells and periodontal regeneration. It is not clear how hypoxia and RvD1 impact the inflammatory responses of pro-inflammatory PDLCs phenotype. Therefore, this study aimed to test hypoxia could induce changes in pro-inflammatory phenotype of PDLCs and RvD1 could reverse it. METHODS Human PDLCs were cultured from periodontal tissues from eight healthy individuals and were characterized by immunofluorescence staining of vimentin and cytokeratin. Cell viability was examined by Methyl-thiazolyl-tetrazolium (MTT) assay. To examine the effects of hypoxia and RvD1 on the inflammatory responses of pro-inflammatory PDLCs phenotype, protein levels and gene expressions of inflammatory cytokines and signal transduction molecules were measured by enzyme-linked immunosorbent assay (ELISA), western blotting (WB), and real-time quantitative reverse transcription PCR (real-time qRT-PCR). Alizarin red S staining and real-time qRT-PCR were employed to study the effects of hypoxia and RvD1 on the osteogenic differentiation of pro-inflammatory PDLCs phenotype. RESULTS It was found that hypoxia increases the expression of inflammatory factors at the gene level (p < .05). RvD1 reduced the expression of IL-1β (p < .05) in PDLCs under hypoxia both at the protein and RNA levels. There were increases in the expression of p38 mitogen-activated protein kinase (p38 MAPK, p < .01) and protein kinase B (Akt, p < .05) in response to RvD1. Also, a significantly higher density of calcified nodules was observed after treatment with RvD1 for 21 days under hypoxia. CONCLUSION Our results indicate that hypoxia up-regulated the inflammatory level of PDLCs. RvD1 can reduce under-hypoxia-induced pro-inflammatory cytokines in the inflammatory phenotype of PDLCs. Moreover, RvD1 promotes the calcium nodules in PDLCs, possibly by affecting the p38 MAPK signaling pathway through Akt and HIF-1α.
Collapse
Affiliation(s)
- Jiazheng Cai
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, P.R.China
| | - Jing Liu
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, P.R.China
| | - Jing Yan
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, P.R.China
| | - Xuexia Lu
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, P.R.China
| | - Xiaoli Wang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, P.R.China
| | - Si Li
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, P.R.China
| | - Kamal Mustafa
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Huihui Wang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, P.R.China
| | - Ying Xue
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Manal Mustafa
- Oral Health Centre of Expertise in Western Norway, Bergen, Norway
| | - Alpdogan Kantarci
- The Forsyth Institute, Cambridge, Massachusetts, USA.,Harvard University, School of Dental Medicine, Boston, Massachusetts, USA
| | - Zhe Xing
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, P.R.China.,Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, Lanzhou University, Lanzhou, P.R. China.,RNA and Molecular Pathology Research Group, Institute of Medical Biology, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| |
Collapse
|
9
|
Barutta F, Bellini S, Durazzo M, Gruden G. Novel Insight into the Mechanisms of the Bidirectional Relationship between Diabetes and Periodontitis. Biomedicines 2022; 10:biomedicines10010178. [PMID: 35052857 PMCID: PMC8774037 DOI: 10.3390/biomedicines10010178] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 01/13/2022] [Accepted: 01/14/2022] [Indexed: 02/01/2023] Open
Abstract
Periodontitis and diabetes are two major global health problems despite their prevalence being significantly underreported and underestimated. Both epidemiological and intervention studies show a bidirectional relationship between periodontitis and diabetes. The hypothesis of a potential causal link between the two diseases is corroborated by recent studies in experimental animals that identified mechanisms whereby periodontitis and diabetes can adversely affect each other. Herein, we will review clinical data on the existence of a two-way relationship between periodontitis and diabetes and discuss possible mechanistic interactions in both directions, focusing in particular on new data highlighting the importance of the host response. Moreover, we will address the hypothesis that trained immunity may represent the unifying mechanism explaining the intertwined association between diabetes and periodontitis. Achieving a better mechanistic insight on clustering of infectious, inflammatory, and metabolic diseases may provide new therapeutic options to reduce the risk of diabetes and diabetes-associated comorbidities.
Collapse
|
10
|
Yang M, Pang Y, Pei M, Li Y, Yuan X, Tang R, Wang J. Therapeutic Potential of Liraglutide for Diabetes-Periodontitis Comorbidity: Killing Two Birds with One Stone. J Diabetes Res 2022; 2022:8260111. [PMID: 35845316 PMCID: PMC9279102 DOI: 10.1155/2022/8260111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/11/2022] [Accepted: 06/16/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The relationship between diabetes and periodontitis is bidirectional, and there is now consensus that periodontitis and diabetes are comorbid. There is a quest for a drug that can be used to treat both conditions simultaneously. This study evaluated the anti-inflammatory and osteoprotective effects of liraglutide (LIRA) on periodontitis in diabetic rats. METHODS Male Wistar rats (n = 46) were randomly divided into four groups: control group (n = 8), LIRA group (n = 8), diabetes-associated periodontitis+0.9% saline group (diabetic periodontitis (DP)+NaCl group, n = 15), and diabetes-associated periodontitis+LIRA group (DP+LIRA group, n = 15). LIRA treatment lasted for 4 weeks (300 μg/kg/d) after establishment of a rat model of DP. The expression of IL-6, TNF-α, and IL-1β was detected by enzyme-linked immunosorbent assay. The morphological changes of periodontal tissues were observed by hematoxylin-eosin staining. The absorption of alveolar bone and its ultrastructural changes were observed by histomorphometry and microcomputed tomography. The expression of receptor activator of NF-κB ligand (RANKL) and osteoprotegerin (OPG) in alveolar bone was detected by immunohistochemistry. The levels of Runx2 mRNA and ALP mRNA in the gingival epithelium were examined by quantitative real-time polymerase chain reaction. RESULTS LIRA decreased alveolar bone resorption, improved the microstructure of alveolar bone, and reduced periodontal inflammation and damage (P < 0.05). LIRA also reduced blood glucose level and inhibited the secretion of serum IL-6, TNF-α, and IL-1β (P < 0.05). In addition, after treatment with LIRA, the ratio of RANKL/OPG was reduced, and the expression levels of ALP mRNA and Runx2 mRNA were upregulated (P < 0.05). CONCLUSIONS LIRA not only controls blood glucose level but also reduces inflammation and bone loss and enhances osteogenic differentiation in diabetes-associated periodontitis. Those indicate that LIRA may be used as a potential medicine for the adjunctive therapy of diabetes-periodontitis comorbidity.
Collapse
Affiliation(s)
- Man Yang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, China
- Key Laboratory of Stomatology of the State Ethnic Affairs Commission, China
- Hospital of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Yunqing Pang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, China
- Gansu Province Clinical Research Center for Oral Diseases, Gansu Province, China
| | - Minyu Pei
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, China
- Key Laboratory of Stomatology of the State Ethnic Affairs Commission, China
- Gansu Province Clinical Research Center for Oral Diseases, Gansu Province, China
| | - Yuanyuan Li
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, China
- Gansu Province Clinical Research Center for Oral Diseases, Gansu Province, China
| | - Xuemin Yuan
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, China
- Hospital of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Rongbing Tang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, China
- Gansu Province Clinical Research Center for Oral Diseases, Gansu Province, China
| | - Jing Wang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, China
- Key Laboratory of Stomatology of the State Ethnic Affairs Commission, China
- Gansu Province Clinical Research Center for Oral Diseases, Gansu Province, China
| |
Collapse
|
11
|
Jing F, Zou Q, Wang Y, Cai Z, Tang Y. Activation of microglial GLP-1R in the trigeminal nucleus caudalis suppresses central sensitization of chronic migraine after recurrent nitroglycerin stimulation. J Headache Pain 2021; 22:86. [PMID: 34325647 PMCID: PMC8323319 DOI: 10.1186/s10194-021-01302-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/21/2021] [Indexed: 12/30/2022] Open
Abstract
Background Central sensitization is considered a critical pathogenic mechanism of chronic migraine (CM). Activation of microglia in the trigeminal nucleus caudalis (TNC) contributes to this progression. Microglial glucagon-like peptide-1 receptor (GLP-1R) activation can alleviate pain; however, whether it is involved in the mechanism of CM has not been determined. Thus, this study aims to investigate the precise role of GLP-1R in the central sensitization of CM. Methods Repeated nitroglycerin injection-treated mice were used as a CM animal model in the experiment. To identify the distribution and cell localization of GLP-1R in the TNC, we performed immunofluorescence staining. Changes in the expression of GLP-1R, Iba-1, PI3K and p-Akt in the TNC were examined by western blotting. To confirm the effect of GLP-1R and PI3K/Akt in CM, a GLP-1R selective agonist (liraglutide) and antagonist (exendin(9–39)) and a PI3K selective antagonist (LY294002) were administered. Mechanical hypersensitivity was measured through von Frey filaments. To investigate the role of GLP-1R in central sensitization, calcitonin gene-related peptide (CGRP) and c-fos were determined using western blotting and immunofluorescence. To determine the changes in microglial activation, IL-1β and TNF-α were examined by western blotting, and the number and morphology of microglia were measured by immunofluorescence. We also confirmed the effect of GLP-1R on microglial activation in lipopolysaccharide-treated BV-2 microglia. Results The protein expression of GLP-1R was increased in the TNC after nitroglycerin injection. GLP-1R was colocalized with microglia and astrocytes in the TNC and was fully expressed in BV-2 microglia. The GLP-1R agonist liraglutide alleviated basal allodynia and suppressed the upregulation of CGRP, c-fos and PI3K/p-Akt in the TNC. Similarly, the PI3K inhibitor LY294002 prevented nitroglycerin-induced hyperalgesia. In addition, activating GLP-1R reduced Iba-1, IL-1β and TNF-α release and inhibited TNC microglial number and morphological changes (process retraction) following nitroglycerin administration. In vitro, the protein levels of IL-1β and TNF-α in lipopolysaccharide-stimulated BV-2 microglia were also decreased by liraglutide. Conclusions These findings suggest that microglial GLP-1R activation in the TNC may suppress the central sensitization of CM by regulating TNC microglial activation via the PI3K/Akt pathway. Supplementary Information The online version contains supplementary material available at 10.1186/s10194-021-01302-x.
Collapse
Affiliation(s)
- Feng Jing
- Department of Histology and Embryology, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China.,Department of Neurology, Chongqing General Hospital, University of Chinese Academy of Sciences, No.118 Xingguang Avenue, Liangjiang New Area, 401147, Chongqing, China
| | - Qian Zou
- Chongqing Key Laboratory of Neurodegenerative Diseases, No.312 Zhongshan First Road, Yuzhong District, 400013, Chongqing, China
| | - Yangyang Wang
- Chongqing Key Laboratory of Neurodegenerative Diseases, No.312 Zhongshan First Road, Yuzhong District, 400013, Chongqing, China
| | - Zhiyou Cai
- Department of Neurology, Chongqing General Hospital, University of Chinese Academy of Sciences, No.118 Xingguang Avenue, Liangjiang New Area, 401147, Chongqing, China. .,Chongqing Key Laboratory of Neurodegenerative Diseases, No.312 Zhongshan First Road, Yuzhong District, 400013, Chongqing, China.
| | - Yong Tang
- Department of Histology and Embryology, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China.
| |
Collapse
|
12
|
IL-1 Receptor Antagonist Protects the Osteogenesis Capability of Gingival-Derived Stem/Progenitor Cells under Inflammatory Microenvironment Induced by Porphyromonas gingivalis Lipopolysaccharides. Stem Cells Int 2021; 2021:6638575. [PMID: 33531908 PMCID: PMC7834827 DOI: 10.1155/2021/6638575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/20/2020] [Accepted: 01/05/2021] [Indexed: 12/28/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have been considered to be a future treatment option for periodontitis due to their excellent regenerative capability. However, it is still a challenge to protect MSCs' biological properties from multiple bacterial toxins in local inflammatory environment. The present study is aimed at investigating the treatment effect of interleukin-1 receptor antagonist (IL-1ra) on cell proliferation, migration, and osteogenic differentiation of gingival-derived mesenchymal stem cells (GMSCs) under an inflammatory microenvironment induced by Porphyromonas gingivalis lipopolysaccharides (P. gingivalis-LPS). GMSCs derived from Sprague-Dawley (SD) rats' free gingival tissues were treated with P. gingivalis-LPS (10 μg/mL) to create in vitro inflammatory environment. Different concentrations of IL-1ra (0.01-1 μg/mL) were used to antagonize the negative effect of LPS. Cell behaviors including proliferation, cloning formation unit (CFU), cell migration, osteogenic differentiation, mineral deposition, and cytokine production were assessed to investigate the protection effect of IL-1ra on GMSCs under inflammation. The toll-like receptor 4 (TLR4)/nuclear factor kappa B (NF-κB) pathway activated by LPS was evaluated by real-time quantitative polymerase chain reaction (RT-PCR) and western blot. In response to P. gingivalis-LPS treatment, cell numbers, cloning formation rate, cell migration rate, proinflammatory cytokine production, and osteogenic differentiation-associated protein/mRNA expressions as well as mineralized nodules were suppressed in a time-dependent manner. These negative effects were effectively attenuated by IL-1ra administration in a time- and dose-dependent manner. In addition, mRNA expressions of TLR4 and IkBα decreased dramatically when IL-1ra was added into LPS-induced medium. IL-1ra also reversed the LPS-induced TLR4/NF-κB activation as indicated by western blot. The present study revealed that IL-1ra decreased inflammatory cytokine production in a supernatant, so as to protect GMSCs' osteogenesis capacity and other biological properties under P. gingivalis-LPS-induced inflammatory environment. This might be explained by IL-1ra downregulating TLR4-mediated NF-κB signaling pathway activation.
Collapse
|