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Xie G, Huang C, Jiang S, Li H, Gao Y, Zhang T, Zhang Q, Pavel V, Rahmati M, Li Y. Smoking and osteoimmunology: Understanding the interplay between bone metabolism and immune homeostasis. J Orthop Translat 2024; 46:33-45. [PMID: 38765605 PMCID: PMC11101877 DOI: 10.1016/j.jot.2024.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/07/2024] [Accepted: 04/10/2024] [Indexed: 05/22/2024] Open
Abstract
Smoking continues to pose a global threat to morbidity and mortality in populations. The detrimental impact of smoking on health and disease includes bone destruction and immune disruption in various diseases. Osteoimmunology, which explores the communication between bone metabolism and immune homeostasis, aims to reveal the interaction between the osteoimmune systems in disease development. Smoking impairs the differentiation of mesenchymal stem cells and osteoblasts in bone formation while promoting osteoclast differentiation in bone resorption. Furthermore, smoking stimulates the Th17 response to increase inflammatory and osteoclastogenic cytokines that promote the receptor activator of NF-κB ligand (RANKL) signaling in osteoclasts, thus exacerbating bone destruction in periodontitis and rheumatoid arthritis. The pro-inflammatory role of smoking is also evident in delayed bone fracture healing and osteoarthritis development. The osteoimmunological therapies are promising in treating periodontitis and rheumatoid arthritis, but further research is still required to block the smoking-induced aggravation in these diseases. Translational potential This review summarizes the adverse effect of smoking on mesenchymal stem cells, osteoblasts, and osteoclasts and elucidates the smoking-induced exacerbation of periodontitis, rheumatoid arthritis, bone fracture healing, and osteoarthritis from an osteoimmune perspective. We also propose the therapeutic potential of osteoimmunological therapies for bone destruction aggravated by smoking.
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Affiliation(s)
- Guangyang Xie
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- Xiangya School of Medicine, Central South University, Changsha 410083, Hunan, China
| | - Cheng Huang
- Department of Orthopeadics, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Shide Jiang
- The Central Hospital of Yongzhou, Yongzhou, 425000, China
| | - Hengzhen Li
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Yihan Gao
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- Xiangya School of Medicine, Central South University, Changsha 410083, Hunan, China
| | - Tingwei Zhang
- Department of Orthopaedics, Wendeng Zhenggu Hospital of Shandong Province, Weihai, 264400, China
| | - Qidong Zhang
- Department of Orthopeadics, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Volotovski Pavel
- Republican Scientific and Practical Center of Traumatology and Orthopedics, Minsk 220024, Belarus
| | - Masoud Rahmati
- Department of Physical Education and Sport Sciences, Faculty of Literature and Human Sciences, Lorestan University, Khoramabad, Iran
- Department of Physical Education and Sport Sciences, Faculty of Literature and Humanities, Vali-E-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Yusheng Li
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
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Hwang SM, Kim TY, Kim A, Kim YG, Park JW, Lee JM, Kim JY, Suh JY. Resveratrol facilitates bone formation in high-glucose conditions. Front Physiol 2024; 15:1347756. [PMID: 38706943 PMCID: PMC11066205 DOI: 10.3389/fphys.2024.1347756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 04/05/2024] [Indexed: 05/07/2024] Open
Abstract
Periodontitis is known to be affected by high-glucose conditions, which poses a challenge to periodontal tissue regeneration, particularly in bone formation. In this study, the potential effects of resveratrol (3,5,4'-trihydroxystilbene, RSV) in facilitating bone formation under high-glucose conditions after periodontitis has been investigated. We focused on the analysis of osteoblasts and periodontal ligament cells, which are essential for bone formation including cell proliferation and differentiation. And we aimed to investigate the impact of RSV on bone healing, employed diabetic mouse model induced by streptozotocin and confirmed through histological observation. High-glucose conditions adversely affected cell proliferation and ALP activity in both MC3T3-E1 and hPDLF in vitro, with more significant impact on MC3T3-E1 cells. RSV under high-glucose conditions had positive effects on both, showing early-stage effects for MC3T3-E1 cells and later-stage effects for hPDLF cells. RSV seemed to have a more pronounced rescuing role in MC3T3-E1 cells. Increased ALP activity was observed and the expression levels of significant genes, such as Col 1, TGF-β1, ALP, and OC, in osteogenic differentiation were exhibited stage-specific expression patterns. Upregulated Col 1 and TGF-β1 were detected in the early stage, and then ALP and OC expressions became more pronounced in the later stages. Similarly, stronger positive reactions against RUNX2 were detected in the RSV-treated group compared to the control. Furthermore, in in vivo experiment, RSV stimulates the growth and differentiation of osteoblasts, thereby promoting bone formation. High-glucose levels have the potential to impair cellular functions and the regenerative capacity to facilitate bone formation with MC3T3-E1 rather than hPDLF cells. Resveratrol appears to facilitate the inherent abilities of MC3T3-E1 cells compared with hPDLF cells, indicating its potential capacity to restore functionality during periodontal regeneration.
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Affiliation(s)
- Sung-Min Hwang
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Tae-Young Kim
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Anna Kim
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Yong-Gun Kim
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Jin-Woo Park
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Jae-Mok Lee
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Jae-Young Kim
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Jo-Young Suh
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
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Vitale M, Corrêa MG, Ervolino E, Cirano FR, Ribeiro FV, Monteiro MF, Casati MZ, Pimentel SP. Resveratrol for preventing medication-related osteonecrosis of the jaws in rats. Oral Dis 2024; 30:1462-1474. [PMID: 36807967 DOI: 10.1111/odi.14544] [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: 09/13/2022] [Revised: 01/31/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023]
Abstract
This study evaluated the effect of resveratrol (RES) on the prevention of medication-related osteonecrosis of the jaws (MRONJ) in ovariectomized (OVX) rats treated with zoledronate (ZOL). Fifty rats were distributed in five groups: SHAM (n = 10): non-ovariectomy + placebo; OVX (n = 10):ovariectomy + placebo; OVX + RES (n = 10):ovariectomy + resveratrol; OVX + ZOL (n = 10):ovariectomy + placebo + zoledronate; and OVX + RES + ZOL (n = 10):ovariectomy + resveratrol + zoledronate. The mandibles left sides were analyzed with micro-CT, histomorphometry, and immunohistochemistry. On the right side, bone markers gene expression was analyzed by qPCR. ZOL increased the percentage of necrotic bone and reduced the neo-formed bone compared to groups not receiving ZOL (p < 0.05). RES impacted the tissue healing pattern in OVX + ZOL + RES, reduced inflammatory cell infiltrate, and improved bone formation in the extraction site. Osteoblasts, alkaline phosphatase (ALP)-, and osteocalcin (OCN)-immunoreactive cells were lower in OVX-ZOL than in SHAM, OVX, and OVX-RES. The OXV-ZOL-RES had fewer osteoblasts and ALP- and OCN-cells than the SHAM and OVX-RES. The tartrate-resistant acid phosphatase (TRAP)-positive cells were reduced in the presence of ZOL (p < 0.05), while the TRAP mRNA levels increased with ZOL treatment, with or without resveratrol, compared with the other groups (p < 0.05). RES alone increased superoxide dismutase levels compared to OVX + ZOL and OVX + ZOL + RES (p < 0.05). In conclusion, resveratrol reduced the tissue impairment severity induced by ZOL; however, it could not prevent the occurrence of MRONJ.
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Affiliation(s)
- Marcelo Vitale
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, Brazil
| | | | - Edilson Ervolino
- Department of Basic Sciences, Dental School of Araçatuba, University Estadual Paulista, UNESP, Araçatuba, Brazil
| | | | | | | | | | - Suzana Peres Pimentel
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, Brazil
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Ma Y, Qian Y, Chen Y, Ruan X, Peng X, Sun Y, Zhang J, Luo J, Zhou S, Deng C. Resveratrol modulates the inflammatory response in hPDLSCs via the NRF2/HO-1 and NF-κB pathways and promotes osteogenic differentiation. J Periodontal Res 2024; 59:162-173. [PMID: 37905727 DOI: 10.1111/jre.13200] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 09/29/2023] [Accepted: 10/16/2023] [Indexed: 11/02/2023]
Abstract
OBJECTIVE The purpose of this study was to investigate resveratrol's specific role as an anti-inflammatory and osteogenic differentiation of hPDLSCs in periodontitis and to reveal the mechanisms involved. BACKGROUND Numerous studies have shown that inhibiting the inflammatory response of periodontal tissues and promoting the regeneration of alveolar bone are crucial treatments for periodontitis. Resveratrol has been found to have certain anti-inflammatory property. However, the anti-inflammatory mechanism and osteogenic effect of resveratrol in periodontitis are poorly understood. MATERIALS AND METHODS We constructed an in vitro periodontitis model by LPS stimulation of hPDLSCs and performed WB, RT-qPCR, and immunofluorescence to analyze inflammatory factors and related pathways. In addition, we explored the osteogenic ability of resveratrol in in vitro models. RESULTS In vitro, resveratrol ameliorated the inflammatory response associated with activation of the NF-κB pathway through activation of the NRF2/HO-1 pathway, characterized by inhibition of p65/p50 nuclear translocation and the proinflammatory cytokines interleukin-1β levels. Resveratrol also has a positive effect on osteogenic differentiation. CONCLUSIONS Observations suggest that resveratrol modulates the inflammatory response in hPDLSCs via the NRF2/HO-1 and NF-κB pathways and promotes osteogenic differentiation.
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Affiliation(s)
- Yifan Ma
- School of Stomatology, Wannan Medical College, Wuhu, China
- Anhui Provincial Engineering Research Center for dental materials and application, Wannan Medical College, Wuhu, China
| | - Yi Qian
- The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Public Health Clinical Center, Hefei, China
| | - Yuteng Chen
- School of Stomatology, Wannan Medical College, Wuhu, China
- Anhui Provincial Engineering Research Center for dental materials and application, Wannan Medical College, Wuhu, China
| | - Xiaoxu Ruan
- School of Stomatology, Wannan Medical College, Wuhu, China
- Anhui Provincial Engineering Research Center for dental materials and application, Wannan Medical College, Wuhu, China
| | - Xiaoya Peng
- School of Stomatology, Wannan Medical College, Wuhu, China
- Anhui Provincial Engineering Research Center for dental materials and application, Wannan Medical College, Wuhu, China
| | - Yi Sun
- School of Stomatology, Wannan Medical College, Wuhu, China
- Anhui Provincial Engineering Research Center for dental materials and application, Wannan Medical College, Wuhu, China
| | - Jue Zhang
- School of Stomatology, Wannan Medical College, Wuhu, China
- Anhui Provincial Engineering Research Center for dental materials and application, Wannan Medical College, Wuhu, China
| | - Jingjing Luo
- School of Stomatology, Wannan Medical College, Wuhu, China
- Anhui Provincial Engineering Research Center for dental materials and application, Wannan Medical College, Wuhu, China
| | - Songlin Zhou
- School of Stomatology, Wannan Medical College, Wuhu, China
- Anhui Provincial Engineering Research Center for dental materials and application, Wannan Medical College, Wuhu, China
| | - Chao Deng
- School of Stomatology, Wannan Medical College, Wuhu, China
- Anhui Provincial Engineering Research Center for dental materials and application, Wannan Medical College, Wuhu, China
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Xu T, Xie K, Wang C, Ivanovski S, Zhou Y. Immunomodulatory nanotherapeutic approaches for periodontal tissue regeneration. NANOSCALE 2023; 15:5992-6008. [PMID: 36896757 DOI: 10.1039/d2nr06149j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Periodontitis is an infection-induced inflammatory disease characterized by progressive destruction of tooth supporting tissues, which, if left untreated, can result in tooth loss. The destruction of periodontal tissues is primarily caused by an imbalance between the host immune protection and immune destruction mechanisms. The ultimate goal of periodontal therapy is to eliminate inflammation and promote the repair and regeneration of both hard and soft tissues, so as to restore the physiological structure and function of periodontium. Advancement in nanotechnologies has enabled the development of nanomaterials with immunomodulatory properties for regenerative dentistry. This review discusses the immune mechanisms of the major effector cells in the innate and adaptive immune systems, the physicochemical and biological properties of nanomaterials, and the research advancements in immunomodulatory nanotherapeutic approaches for the management of periodontitis and the regeneration of periodontal tissues. The current challenges, and prospects for future applications of nanomaterials are then discussed so that researchers at the intersections of osteoimmunology, regenerative dentistry and materiobiology will continue to advance the development of nanomaterials for improved periodontal tissue regeneration.
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Affiliation(s)
- Tian Xu
- School of Dentistry, The University of Queensland, QLD 4006, Australia.
| | - Kunke Xie
- Clinical Laboratory, Bo'Ai Hospital of Zhongshan, 6 Chenggui Road, East District, Zhongshan 528403, Guangdong, China
| | - Cong Wang
- School of Dentistry, The University of Queensland, QLD 4006, Australia.
| | - Sašo Ivanovski
- School of Dentistry, The University of Queensland, QLD 4006, Australia.
| | - Yinghong Zhou
- School of Dentistry, The University of Queensland, QLD 4006, Australia.
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Dal-Fabbro R, Cosme-Silva L, Rezende Silva Martins de Oliveira F, Capalbo LC, Plazza FA, Ervolino E, Cintra LTA, Gomes-Filho JE. Effect of red wine or its polyphenols on induced apical periodontitis in rats. Int Endod J 2021; 54:2276-2289. [PMID: 34534374 DOI: 10.1111/iej.13633] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/14/2021] [Indexed: 01/25/2023]
Abstract
AIM To evaluate the effect of red wine consumption or its polyphenols on the inflammation/resorption processes associated with apical periodontitis in rats. METHODOLOGY Thirty-two three-month-old Wistar rats had apical periodontitis induced in four first molars and were then arranged into four groups: control (C)-rats with apical periodontitis; wine (W)-rats with apical periodontitis receiving 4.28 ml/kg of red wine; resveratrol+quercetin (R+Q)-rats with apical periodontitis receiving 4.28 ml/kg of a solution containing 1.00 mg/L of quercetin and 0.86 mg/L of resveratrol and alcohol (ALC)-rats with apical periodontitis receiving the alcoholic dose contained in the wine. The oral gavage treatments were administered daily, from day 0 to day 45. On the 15th day, apical periodontitis was induced, and on the 45th day, the animals were euthanized. Histological, immunohistochemical (RANKL, OPG, TRAP, IL-10, TNF-⍺ and IL-1β) and micro-computed tomography for bone resorption analysis were performed in the jaws. The Kruskal-Wallis with Dunn's test was performed for nonparametric data, and the anova with Tukey's test for parametric data, p < .05. RESULTS The median score of the inflammatory process was significantly lower in the R+Q group (1) compared to the C (2) (p = .0305) and ALC (3) (p = .0003) groups, and not different from the W (1.5) group. The immunolabeling for OPG was significantly higher in the R+Q group (p = .0054) compared to all groups; the same was observed for IL-10 (p = .0185), different from groups C and ALC. The R+Q group had the lowest TRAP cell count (p < .0001), followed by the W group, both inferior to C and ALC groups. The lowest bone resorption value was in the R+Q group (0.50mm3 ± 0.21mm3 ), significantly lower (p = .0292) than the C group (0.88mm3 ± 0.10mm3 ). The W group (0.60 mm3 ± 0.25 mm3 ) and R+Q group had less bone resorption compared to the ALC group (0.97 mm3 ± 0.22 mm3 ), p = .0297 and p = .0042, respectively. CONCLUSION Red wine administration to rats for 15 days before induction of apical periodontitis decreased inflammation, TRAP marking and periapical bone resorption compared to alcohol. Resveratrol-quercetin administration reduced the inflammatory process in apical periodontitis, periapical bone resorption, and altered the OPG, IL-10 and TRAP expression compared to C and ALC groups.
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Affiliation(s)
- Renan Dal-Fabbro
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan, Ann Arbor, Michigan, USA
| | - Leopoldo Cosme-Silva
- Department of Restorative Dentistry, School of Dentistry, Federal University of Alagoas (UFAL), Alagoas, Brazil
| | | | - Letícia Cabrera Capalbo
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Flávia Alfredo Plazza
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Edilson Ervolino
- Department of Basic Science, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Luciano Tavares Angelo Cintra
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - João Eduardo Gomes-Filho
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
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Histone Acetylation in the Epigenetic Regulation of Bone Metabolism and Related Diseases. Stem Cells Int 2021; 2021:8043346. [PMID: 34326880 PMCID: PMC8310436 DOI: 10.1155/2021/8043346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/01/2021] [Indexed: 02/05/2023] Open
Abstract
As the earliest studied epigenetic modification, acetylation has been explored a lot through the years. While bone tissue acts as an indispensable part of body, researches aimed at the relationship between the bone and acetylation became necessary. Some environmental factors like diet may affect the metabolism status that some metabolites especially nicotinamide adenine dinucleotide (NAD) were found able to regulate intracellular histone acetylation in bone metabolism. This review focuses on representing the interaction among acetylation, metabolism, and the bone. The results showed that acetylation connects a lot with bone metabolism, while the explorations about related metabolites like acetyl-CoA or different environmental exposures are still limited. Some acetylation-related therapy methods of bone diseases based on metabolic regulation or epigenetic enzymes were also reviewed.
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Jung JI, Kim S, Baek SM, Choi SI, Kim GH, Imm JY. Ecklonia cava Extract Exerts Anti-Inflammatory Effect in Human Gingival Fibroblasts and Chronic Periodontitis Animal Model by Suppression of Pro-Inflammatory Cytokines and Chemokines. Foods 2021; 10:foods10071656. [PMID: 34359526 PMCID: PMC8304037 DOI: 10.3390/foods10071656] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 12/14/2022] Open
Abstract
Periodontitis is one of the most common chronic inflammatory diseases. The anti-inflammatory effect of the extract from brown algae Ecklonia cava was analyzed in lipopolysaccharide (LPS)-stimulated human gingival fibroblasts (HGF-1), the most abundant cells in gingival tissue. The gene expressions of cyclooxygenase-2 and interleukin-6 were decreased by 78 and 50%, respectively, at 100 μg/mL Ecklonia cava extract (ECE) treatment. The gene expressions of matrix metalloproteases (MMP-2 and MMP-8) and chemokines (macrophage inflammatory protein 1-alpha and stromal cell-derived factor 1) were also significantly down-regulated by ECE treatment (p < 0.05). The increased reactive oxygen species (ROS) production in HGF-1 cells by LPS stimulation was decreased by 30% at 100 μg/mL ECE treatment. The mitogen-activated protein kinase pathway and the nuclear factor-kappa B (NF-κB) signal activated by ROS were suppressed by ECE in a dose-dependent manner. ECE treatment (400 mg/kg, 8 weeks) significantly improved alveolar bone resorption in the ligature-induced chronic periodontitis rat model. ECE supplementation also lowered elevated mRNA expression of the receptor activator of nuclear factor-kappa B (RANKL)/osteoprotegerin (OPG) in the gingival tissue (p < 0.05). Therefore, ECE mitigated gingival tissue destruction and bone resorption associated with chronic periodontitis condition.
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Affiliation(s)
- Jae-In Jung
- Department of Foods and Nutrition, Kookmin University, Seoul 02707, Korea; (J.-I.J.); (S.K.); (S.-M.B.)
| | - Seonyoung Kim
- Department of Foods and Nutrition, Kookmin University, Seoul 02707, Korea; (J.-I.J.); (S.K.); (S.-M.B.)
| | - Seung-Min Baek
- Department of Foods and Nutrition, Kookmin University, Seoul 02707, Korea; (J.-I.J.); (S.K.); (S.-M.B.)
| | - Soo-Im Choi
- Plant Resources Research Institute, Duksung Women’s University, Seoul 10326, Korea; (S.-I.C.); (G.-H.K.)
| | - Gun-Hee Kim
- Plant Resources Research Institute, Duksung Women’s University, Seoul 10326, Korea; (S.-I.C.); (G.-H.K.)
| | - Jee-Young Imm
- Department of Foods and Nutrition, Kookmin University, Seoul 02707, Korea; (J.-I.J.); (S.K.); (S.-M.B.)
- Correspondence: ; Tel.: +82-10-2526-1219
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Cardoso EOC, Fine N, Glogauer M, Johnson F, Goldberg M, Golub LM, Tenenbaum HC. The Advent of COVID-19; Periodontal Research Has Identified Therapeutic Targets for Severe Respiratory Disease; an Example of Parallel Biomedical Research Agendas. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.674056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The pathophysiology of SARS-CoV-2 infection is characterized by rapid virus replication and aggressive inflammatory responses that can lead to acute respiratory distress syndrome (ARDS) only a few days after the onset of symptoms. It is suspected that a dysfunctional immune response is the main cause of SARS-CoV-2 infection-induced lung destruction and mortality due to massive infiltration of hyperfunctional neutrophils in these organs. Similarly, neutrophils are recruited constantly to the oral cavity to combat microorganisms in the dental biofilm and hyperfunctional neutrophil phenotypes cause destruction of periodontal tissues when periodontitis develops. Both disease models arise because of elevated host defenses against invading organisms, while concurrently causing host damage/disease when the immune cells become hyperfunctional. This represents a clear nexus between periodontal and medical research. As researchers begin to understand the link between oral and systemic diseases and their potential synergistic impact on general health, we argue that translational research from studies in periodontology must be recognized as an important source of information that might lead to different therapeutic options which can be effective for the management of both oral and non-oral diseases. In this article we connect concepts from periodontal research on oral inflammation while exploring host modulation therapy used for periodontitis as a potential strategy for the prevention of ARDS a deadly outcome of COVID-19. We suggest that host modulation therapy, although developed initially for management of periodontitis, and which inhibits proteases, cytokines, and the oxidative stress that underlie ARDS, will provide an effective and safe treatment for COVID-19.
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Abstract
Periodontitis is one of the most prevalent epidemics affecting human health and life recently, and exploration of the pathogenesis and treatment of periodontitis has been valued by scholars. In recent years, sclerostin, a new factor on bone resorption and reconstruction caused by inflammation and mechanical stimulation, has been a research hotspot. This article summarizes the researches on sclerostin in periodontitis development in recent years. Among them, sclerostin has been shown to be a critical negative regulator of bone formation, thereby inhibiting bone remodeling in periodontitis development, and is closely associated with tooth movement. Besides, evidence indicates that the removal of sclerostin seems to reasonably protect the alveolar bone from resorption. Regulation of sclerostin expression is a novel, promising treatment for periodontitis and addresses several complications seen with traditional therapies; accordingly, many drugs with similar mechanisms have emerged. Moreover, the application prospect of sclerostin in periodontal therapy combined with orthodontic treatment is another promising approach. There are also a lot of drugs that regulate sclerostin. Anti-sclerostin antibody (Scl-Ab) is the most direct one that inhibits bone resorption caused by sclerostin. At present, drugs that inhibit the expression of sclerostin have been applied to the treatment of diseases such as multiple myeloma and osteoporosis. Therefore, the application of sclerostin in the oral field is just around the corner, which provides a new therapeutic bone regulation strategy in oral and general health.
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Adhikari N, Prasad Aryal Y, Jung JK, Ha JH, Choi SY, Kim JY, Lee TH, Kim SH, Yamamoto H, Suh JY, An CH, Lee Y, Sohn WJ, An SY, Kim JY. Resveratrol enhances bone formation by modulating inflammation in the mouse periodontitis model. J Periodontal Res 2021; 56:735-745. [PMID: 33682929 DOI: 10.1111/jre.12870] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 02/11/2021] [Accepted: 02/16/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To evaluate the effect of resveratrol on periodontal bone regeneration after local delivery and to determine its effect on inflammatory mediators. BACKGROUND Resveratrol is considered an anti-inflammatory polyphenolic stilbene involved in the modulation of inflammation. MATERIALS AND METHODS Periodontitis was induced in mouse molars using a 5-day ligature model followed by the left second molar extraction and 50 µM resveratrol treatment for 1 and 2 weeks. We then examined specimens treated for 1 week histologically and with immunostaining. Microfocus-computed tomography (micro-CT) was used to examine the bone volume formation. RESULTS After 1 week of treatment, proinflammatory cytokine levels (TNF-alpha and IL6), cells exhibiting neutrophil and macrophage marker (MPO), cell proliferation marker (Ki67), and preosteoblastic marker (RUNX2) reactivity decreased in the resveratrol-treated specimens compared to the control group. In contrast, we observed a higher number of CD31-, F4/80-, and osteocalcin- (OCN-) positive cells in the resveratrol-treated specimens. After 2 weeks, micro-CT confirmed an increased bone mass in the region of the extraction socket in the resveratrol-treated group. CONCLUSION After 1 week, the resveratrol-treated specimens revealed evidence of inflammation modulation compared to the control group. These data suggest that resveratrol not only affects inflammation control but also is useful for treating periodontitis-related tissue defects and bone regeneration.
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Affiliation(s)
- Nirpesh Adhikari
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Yam Prasad Aryal
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Jae-Kwang Jung
- Department of Oral Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Jung-Hong Ha
- Department of Conservative Dentistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - So-Young Choi
- Department of Oral and Maxillofacial Surgery, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Ji-Youn Kim
- Department of Dental Hygiene, College of Health Science, Gachon University, Incheon, Korea
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Sang-Hyun Kim
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Hitoshi Yamamoto
- Department of Histology and Developmental Biology, Tokyo Dental College, Tokyo, Japan
| | - Jo-Young Suh
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Chang-Hyeon An
- Department of Oral and Maxillofacial Radiology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Youngkyun Lee
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Wern-Joo Sohn
- Division of Biotechnology and Convergence, Daegu Haany University, Gyeongsan, Korea
| | - Seo-Young An
- Department of Oral and Maxillofacial Radiology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Jae-Young Kim
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
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13
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Lim YRI, Preshaw PM, Lin H, Tan KS. Resveratrol and Its Analogs as Functional Foods in Periodontal Disease Management. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.636423] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Periodontitis is a common chronic inflammatory disease driven by the interaction between a dysbiotic oral microbiome and the dysregulated host immune-inflammatory response. Naturally derived nutraceuticals, such as resveratrol and its analogs, are potential adjunctive therapies in periodontal treatment due to their antimicrobial and anti-inflammatory properties. Furthermore, different analogs of resveratrol and the choice of solvents used may lead to varying effects on therapeutic properties. This review presents the current findings and gaps in our understanding on the potential utility of resveratrol and its analogs in periodontal treatment.
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14
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Molez AM, Nascimento EHL, Haiter Neto F, Cirano FR, Pimentel SP, Ribeiro FV, Casati MZ, Corrêa MG. Effect of resveratrol on the progression of experimental periodontitis in an ovariectomized rat model of osteoporosis: Morphometric, immune‐enzymatic, and gene expression analysis. J Periodontal Res 2020; 55:840-849. [DOI: 10.1111/jre.12775] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 05/13/2020] [Accepted: 05/21/2020] [Indexed: 12/23/2022]
Affiliation(s)
| | - Eduarda Helena Leandro Nascimento
- Department of Oral Diagnosis Division of Oral Radiology Piracicaba Dental School University of Campinas Piracicaba, São Paulo Brazil
| | - Francisco Haiter Neto
- Department of Oral Diagnosis Division of Oral Radiology Piracicaba Dental School University of Campinas Piracicaba, São Paulo Brazil
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15
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Cirano FR, Molez AM, Ribeiro FV, Tenenbaum HC, Casati MZ, Corrêa MG, Pimentel SP. Resveratrol and insulin association reduced alveolar bone loss and produced an antioxidant effect in diabetic rats. J Periodontol 2020; 92:748-759. [PMID: 32827164 DOI: 10.1002/jper.19-0718] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 07/15/2020] [Accepted: 07/20/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND The present investigation studied the effects of systemic administration of resveratrol (RSV) on the development of experimental periodontitis (EP) and on the release of markers of inflammation, bone metabolism, and oxidative stress in diabetic rats. METHODS Seventy-five male rats were divided into five groups: DM+PLAC: Diabetes Mellitus + placebo solution; DM+INS: DM + insulin therapy; DM+RSV: DM + RSV; DM+RSV+INS: DM + RSV and insulin; NDM: non-diabetic. Streptozotocin was used to induce DM and EP was induced by the placement of a ligature at the fist mandibular and the second maxillary molars. Euthanasia occurred 30 days after the initiation of the study and mandible specimens were subjected for morphometric analysis of bone level. Gingival tissues from mandibular molars were collected for quantification of inflammatory and oxidative stress markers by multiplex assay system and ELISA assay, respectively. Maxillary gingival tissues were processed for real-time polymerase chain reaction (real-time PCR) assessment of markers of bone metabolism and oxidative stress. RESULTS Morphometric analysis revealed greater bone loss in DM+PLAC and DM+INS in comparison to the other treatments (P < 0.05). RSV used in conjunction with INS reduced the levels of interleukin (IL)-1β, IL-6, IL-17, interferon-gamma (IFN-γ) and superoxide dismutase 1 (SOD) (P < 0.05). RSV alone reduced nicotinamide adenine dinucleotide phosphatase oxidase (NADPH oxidase) levels, in comparison to DM+INS and DM+RSV+INS (P < 0.05). All treatments upregulated mRNA levels for osteoprotegerin (OPG) in comparison to PLAC (P < 0.05). Sirtuin 1 (SIRT) mRNA levels were lower in PLAC when compared to DM+RSV, DM+RSV+INS and NDM (P < 0.05). CONCLUSION RSV reduced the progression of EP and the levels of NADPH oxidase. Co-treatment with RSV and insulin reduced the levels of pro-inflammatory factors (either proteins or mRNA) and increased the levels of SOD. The data also demonstrated that treatment with RSV and INS alone or in combination had beneficial effects on bone loss.
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Affiliation(s)
| | - Andréia Manetta Molez
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, Brazil
| | | | - Howard C Tenenbaum
- Department of Periodontology, Faculty of Dentistry, Toronto, Ontario, Canada.,Laboratory Medicine and Pathobiology, Faculty of Medicine University of Toronto, Toronto, Ontario, Canada.,School of Dental Medicine, Department of Periodontics, Tel Aviv University, Tel Aviv, Israel.,Department of Dentistry and Centre for Advanced Dental Research and Care, Sinai Health System, Toronto, Ontario, Canada
| | - Marcio Z Casati
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, Brazil
| | | | - Suzana Peres Pimentel
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, Brazil
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16
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Al Deeb M, Alresayes S, A Mokeem S, Alhenaki AM, AlHelal A, Shafqat SS, Vohra F, Abduljabbar T. Clinical and immunological peri-implant parameters among cigarette and electronic smoking patients treated with photochemotherapy: A randomized controlled clinical trial. Photodiagnosis Photodyn Ther 2020; 31:101800. [DOI: 10.1016/j.pdpdt.2020.101800] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 04/18/2020] [Accepted: 04/24/2020] [Indexed: 02/06/2023]
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17
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Bi CS, Li X, Qu HL, Sun LJ, An Y, Hong YL, Tian BM, Chen FM. Calcitriol inhibits osteoclastogenesis in an inflammatory environment by changing the proportion and function of T helper cell subsets (Th2/Th17). Cell Prolif 2020; 53:e12827. [PMID: 32406154 PMCID: PMC7309596 DOI: 10.1111/cpr.12827] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 04/15/2020] [Accepted: 04/18/2020] [Indexed: 12/15/2022] Open
Abstract
Objectives Previously, we found that by regulating T helper (Th) cell polarization, calcitriol intervention inhibited lipopolysaccharide (LPS)‐induced alveolar bone loss in an animal periodontitis model, but the underlying cellular events remain unknown. Materials and methods In this study, mouse Th cells were incubated in an inflammatory environment in the presence of dendritic cells (DCs) and LPS. Then, the potential of the Th cells to undergo Th2/Th17 polarization, the RANKL expression of the polarized Th cells and the subsequent influences of the polarized Th cells on RAW264.7 cell osteoclastogenesis in response to calcitriol administration were assessed. Finally, the effects of calcitriol on antigen presentation by DCs during these cellular events were evaluated. Results In response to calcitriol administration, Th cells in an inflammatory environment exhibited an enhanced potential for Th2 polarization along with a decreased potential for Th17 polarization. In addition, RANKL expression in Th17‐polarized cells was largely inhibited. Furthermore, inflammation‐induced osteoclastogenesis in RAW264.7 cells was suppressed following coculture with calcitriol‐treated Th cells. During these cellular events, increased expression of Th2 promoters (such as OX‐40L and CCL17) and decreased expression of Th17 promoters (such as IL‐23 and IL‐6) were found in DCs. Conclusions Calcitriol can inhibit osteoclastogenesis in an inflammatory environment by changing the proportion and function of Th cell subsets. Our findings suggest that calcitriol may be an effective therapeutic agent for treating periodontitis.
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Affiliation(s)
- Chun-Sheng Bi
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China.,Department of Periodontics, Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xuan Li
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Hong-Lei Qu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Li-Juan Sun
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Ying An
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Yong-Long Hong
- Stomatology Center, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Bei-Min Tian
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
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18
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Bayer Alinca S, Sağlam E, Zengin Celik T, Hacisalihoglu P, Doğan MA. Is low level laser therapy or ozone therapy more effective for bone healing? Understanding the mechanisms of HIF-1α, RANKL and OPG. Biotech Histochem 2020; 95:597-604. [PMID: 32292090 DOI: 10.1080/10520295.2020.1743360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Periodontitis is a common chronic infection of dental tissues. Ozone therapy (OT) and low level laser therapy (LLLT) are useful treatments for periodontitis. We investigated the effects of OT and LLLT on periodontal disease-induced bone destruction in rats with experimentally induced periodontitis (EP). We used 30 male Wistar rats divided into three groups: control, OT and LLLT. EP was induced by placing a 3.0 silk suture around the cervix of the left mandibular first molar tooth. OT was performed using an ozone generator at 80% concentration. LLLT was applied using a diode laser. Both OT and LLLT were performed for two weeks at two day intervals. Histomorphometric and immunohistochemical analyses also were performed. Alveolar bone loss was significantly less in the LLLT group compared to the control group. The number of HIF-1α positive cells was significantly less in the LLLT group compared to the control group. We found significantly fewer RANKL-positive cells in the OT group compared to the control group. The number of osteoprotegerin (OPG) positive cells was significantly greater for the LLLT group than for the control group. Although both treatments produced positive effects, LLLT appears to be more effective for increasing alveolar bone formation.
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Affiliation(s)
- S Bayer Alinca
- Kecioren Osmanli Public Oral Health Center , Ankara, Turkey
| | - E Sağlam
- Department of Periodontology, Faculty of Dentistry, Health Sciences University , İstanbul, Turkey
| | | | - P Hacisalihoglu
- Department of Pathology, Yeni Yuzyil University , Istanbul, Turkey
| | - M A Doğan
- Department of Pathology, Istanbul University , Istanbul, Turkey
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19
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Immune Th17 lymphocytes play a critical role in the multiple beneficial properties of resveratrol. Food Chem Toxicol 2019; 137:111091. [PMID: 31883989 DOI: 10.1016/j.fct.2019.111091] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/15/2019] [Accepted: 12/24/2019] [Indexed: 01/06/2023]
Abstract
Modulation of the inflammatory response is one of the major issues of the 21st century due to its importance in the occurrence of various pathologies (cancer, autoimmune diseases, degenerative diseases) and their progression over time. Whether acute or chronic, the inflammatory response is directly related to the immune response through different subtypes of T lymphocytes. In addition, among the compounds capable of modulating the cells of the immune system, resveratrol, a polyphenol with pleiotropic biological properties, seems to be a good candidate. Indeed, resveratrol is able to alter the immune response by modulating the process of lymphocyte differentiation and subsequently diminishing the inflammatory-associated response. More specifically, thanks to its ability to act as a sirtuin-1 agonist, it can deacetylate the transcription factor STAT3 and alter nuclear factors essential to the process of lymphocyte differentiation. We present and discuss these different aspects in relation to various pathologies and how the alteration of the ratios between the different lymphocyte subtypes by resveratrol is an important element to take into account when studying its anti-inflammatory and immunomodulatory properties.
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20
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Levi YLDAS, Picchi RN, Silva EKT, Bremer Neto H, Prado RLD, Neves ADP, Messora MR, Maia LP. Probiotic Administration Increases Mandibular Bone Mineral Density on Rats Exposed to Cigarette Smoke Inhalation. Braz Dent J 2019; 30:634-640. [PMID: 31800759 DOI: 10.1590/0103-6440201802862] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/22/2019] [Indexed: 11/22/2022] Open
Abstract
Smoking is one of the main risk factor for periodontal disease, increasing its prevalence and severity. Probiotics emerged as an alternative for the prevention and treatment of many diseases, since it can modulate the host immune response and modify the modify the microbiome. Therefore, the aim of the present study is to evaluate the effects of probiotic administration on the periodontal tissues in rats exposed to cigarette smoke inhalation (CSI). Forty rats were allocated into the following groups (n=10): group C (control, without CSI and probiotic); group PROB (control+probiotic); group CSI (CSI) and group CSI+PROB (CSI+probiotic). Groups PROB and CSI+PROB received 2g of an association of probiotic microorganisms incorporated into the feed during 6 months. Groups CSI and CSI+PROB were exposed to CSI for 60 min daily. After six months all the animals were euthanized and the hemi-mandibles were collected and processed for microcomputed tomography analyses. Regarding the body weight of the animals, feed consumption was similar among the groups, however, after the second month groups C and PROB showed higher body weight gain when compared to groups CSI and CSI+PROB (p<0.05). Group CSI presented reduced bone mineral density (BMD), whereas group PROB showed the highest values (p=0.01). It can be concluded that administration of probiotics promoted an increase in BMD and, consequently, a protective effect on the mandibular bone structures in rats exposed to inhalation of cigarette smoke.
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Affiliation(s)
| | - Raquel Narciso Picchi
- Graduate Program in Dentistry, UNOESTE - Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | | | - Hermann Bremer Neto
- Department of Functional Sciences, UNOESTE - Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | - Rosana Leal do Prado
- Graduate Program in Dentistry, UNOESTE - Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | - Adrieli de Paula Neves
- Graduate Program in Dentistry, UNOESTE - Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil
| | - Michel Reis Messora
- Departament of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Luciana Prado Maia
- Graduate Program in Dentistry, UNOESTE - Universidade do Oeste Paulista, Presidente Prudente, SP, Brazil.,Graduate Program in Rehabilitation Sciences, UNOPAR - Universidade Norte do Paraná, Londrina, PR, Brazil
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21
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Min KK, Neupane S, Adhikari N, Sohn WJ, An SY, Kim JY, An CH, Lee Y, Kim YG, Park JW, Lee JM, Kim JY, Suh JY. Effects of resveratrol on bone-healing capacity in the mouse tooth extraction socket. J Periodontal Res 2019; 55:247-257. [PMID: 31797379 DOI: 10.1111/jre.12710] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/23/2019] [Accepted: 10/27/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVE After tooth extraction, the extraction socket undergoes several steps of soft and hard tissue healing. The healing process of the extraction socket is modulated by a range of signaling factors and biochemical agents. It has been reported that resveratrol, a polyphenolic compound, exhibits various biological effects, including anti-inflammatory, anti-carcinogenic, antioxidant, and anti-aging effects, and protects cardiovascular and bone tissues. In this study, we examined the cellular effects of resveratrol on human periodontal ligament (hPDL) cells and osteoblast-like (MC3T3-E1) cells and evaluated the bone-healing capacity of tooth extraction sockets in mice. MATERIAL AND METHODS Resveratrol was applied to hPDL and MC3T3-E1 cells to detect cell proliferation and alkaline phosphatase (ALP) activity, and qPCR was employed to understand the gene expression level in vitro. For in vivo experiment, six-week-old C57BL/6 male mice were randomly divided into control (n = 15) and experimental (n = 15) groups and maxillary first molars were extracted by surgery. Experimental groups received 50-µM resveratrol on extraction sockets and analyzed the degree of new bone formation. RESULTS Treatment of hPDL and MC3T3-E1 cells with resveratrol increased the cell proliferation and ALP activity and enhanced the expression of ALP, BMP-2, BMP-4, and OC genes. Resveratrol enhanced new bone formation in the lingual extraction socket in mice. CONCLUSION These results suggest that resveratrol increases the cellular physiology of PDL and osteoblast including their proliferation and differentiation and may play an important role in bone-healing capacity after tooth extraction.
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Affiliation(s)
- Kyung-Kon Min
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Sanjiv Neupane
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Nirpesh Adhikari
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Wern-Joo Sohn
- Pre-Major of Cosmetics and Pharmaceutics, Daegu Haany University, Gyeongsan, Korea
| | - Seo-Young An
- Department of Oral and Maxillofacial Radiology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Ji-Youn Kim
- Department of Dental Hygiene, Gachon University, Incheon, Korea
| | - Chang-Hyeon An
- Department of Oral and Maxillofacial Radiology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Youngkyun Lee
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Yong-Gun Kim
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Jin-Woo Park
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Jae-Mok Lee
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Jae-Young Kim
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
| | - Jo-Young Suh
- Department of Periodontology, School of Dentistry, IHBR, Kyungpook National University, Daegu, Korea
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22
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Aghaloo T, Kim JJ, Gordon T, Behrsing HP. In Vitro Models, Standards, and Experimental Methods for Tobacco Products. Adv Dent Res 2019; 30:16-21. [PMID: 31538805 DOI: 10.1177/0022034519872474] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Traditional tobacco products have well-known systemic and local oral effects, including inflammation, vasoconstriction, delayed wound healing, and increased severity of periodontal disease. Specifically in the oral cavity and the lung, cigarette smoking produces cancer, increased infectivity, acute and chronic inflammation, changes in gene expression in epithelial lining cells, and microbiome changes. In recent years, cigarette smoking has greatly decreased in the United States, but the use of new tobacco products has gained tremendous popularity. Without significant knowledge of the oral sequelae of products such as electronic cigarettes, researchers must evaluate current in vitro and in vivo methods to study these agents, as well as develop new tools to adequately study their effects. Some in vitro testing has been performed for electronic cigarettes, including toxicologic models and assays, but these mostly study the effect on the respiratory tract. Recently, direct exposure of the aerosol to in vitro 3-dimensional tissue constructs has been performed, demonstrating changes in cell viability and inflammatory cytokines. For in vivo studies, a universal e-cigarette testing machine or standard vaping regime is needed. A standard research electronic cigarette has recently been developed by the National Institute of Drug Abuse, and other devices delivering aerosols with different nicotine concentrations are becoming available. One of the biggest challenges in this research is keeping up with the new products and the rapidly changing technologies in the industry.
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Affiliation(s)
- T Aghaloo
- Section of Oral and Maxillofacial Surgery, UCLA School of Dentistry, Los Angeles, CA, USA
| | - J J Kim
- Volpe Research Center, American Dental Association Foundation, Gaithersburg, MD, USA
| | - T Gordon
- Department of Environmental Medicine, New York University School of Medicine, New York, NY, USA
| | - H P Behrsing
- Institute for In Vitro Sciences, Gaithersburg, MD, USA
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23
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Wang Z, Li Y, Zhou Y, Qiao Y. Association between the IL-10 rs1800872 polymorphisms and periodontitis susceptibility: A meta-analysis. Medicine (Baltimore) 2019; 98:e17113. [PMID: 31577700 PMCID: PMC6783189 DOI: 10.1097/md.0000000000017113] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Periodontitis is a common disease with an unclear pathological mechanism. No precise consensus has been reached to evaluate the association between the IL-10 rs1800872 (- 592, -590, -597 C>A) polymorphism and periodontal disease. Thus, we performed this meta-analysis to collect more evidence-based information. METHODS Four online databases, PubMed, Embase, Web of Science, and China Biology Medicine disc (CBM), were searched in August 2018. An odds ratio (OR) with a 95% confidence interval (CI) was applied to evaluate the association of the rs1800872 with periodontitis susceptibility. RESULTS Twenty three case-control studies with 2714 patients and 2373 healthy controls were evaluated. The overall analyses verified that the IL-10 rs1800872 polymorphism was significantly associated with an increased risk of periodontitis in the allelic model, homozygote model, dominant model, and recessive model (A vs C: OR = 1.28, 95%CI = 1.11-1.49, P = .00, I = 56.87%; AA vs CC: OR = 2.06, 95%CI = 1.32-3.23, P = .00, I = 73.3%; AA + AC vs CC: OR = 1.42, 95%CI = 1.03-1.96, P = .03, I = 76.2%; AA vs AC + CC: OR = 1.78, 95%CI = 1.26-2.56, P = .00, I = 76.7%). Moreover, the subgroup analysis based on ethnicity, periodontitis type, and smoking status showed significant differences. CONCLUSIONS The results of our meta-analysis demonstrate that rs1800872 is associated with periodontitis susceptibility in Caucasians and Asians. Moreover, A allele, AA genotype, CC genotype may be closely associated with chronic periodontitis (CP), while A allele, AA genotype may be closely associated with aggressive periodontitis (AgP).
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24
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Pimentel SP, Casati MZ, Ribeiro FV, Corrêa MG, Franck FC, Benatti BB, Cirano FR. Impact of natural curcumin on the progression of experimental periodontitis in diabetic rats. J Periodontal Res 2019; 55:41-50. [DOI: 10.1111/jre.12683] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 05/17/2019] [Accepted: 06/17/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Suzana P. Pimentel
- Dental Research Division, School of Dentistry Paulista University São Paulo Brazil
| | - Marcio Z. Casati
- Dental Research Division, School of Dentistry Paulista University São Paulo Brazil
| | - Fernanda V. Ribeiro
- Dental Research Division, School of Dentistry Paulista University São Paulo Brazil
| | | | - Felipe C. Franck
- Dental Research Division, School of Dentistry Paulista University São Paulo Brazil
| | - Bruno B. Benatti
- School of Dentistry Federal University of Maranhão São Luís Brazil
| | - Fabiano R. Cirano
- Dental Research Division, School of Dentistry Paulista University São Paulo Brazil
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25
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BinShabaib M, ALHarthi SS, Akram Z, Khan J, Rahman I, Romanos GE, Javed F. Clinical periodontal status and gingival crevicular fluid cytokine profile among cigarette-smokers, electronic-cigarette users and never-smokers. Arch Oral Biol 2019; 102:212-217. [DOI: 10.1016/j.archoralbio.2019.05.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/28/2019] [Accepted: 05/02/2019] [Indexed: 02/09/2023]
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26
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Bi CS, Sun LJ, Qu HL, Chen F, Tian BM, Chen FM. The relationship between T-helper cell polarization and the RANKL/OPG ratio in gingival tissues from chronic periodontitis patients. Clin Exp Dent Res 2019; 5:377-388. [PMID: 31944625 PMCID: PMC7938418 DOI: 10.1002/cre2.192] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/17/2019] [Accepted: 04/23/2019] [Indexed: 12/24/2022] Open
Abstract
This study aimed to investigate the relationship between inflammation‐related T‐helper cell polarization and the receptor activator for nuclear factor‐κB ligand (RANKL)/osteoprotegerin (OPG) ratio, which is associated with bone resorption or remodeling of chronic periodontitis patients. Gingival crevicular fluid (GCF) and gingival tissues were obtained from periodontally healthy individuals (PH group) and chronic periodontitis patients (CP group). The GCF levels of IFN‐γ, IL‐4, IL‐17, and IL‐10 linked to T‐helper cell polarization toward the Th1, Th2, Th17, and Treg phenotypes, respectively, were determined by ELISA. The expression levels of these cytokines and the polarized T‐helper cells in gingival tissues were assessed through immunohistochemical and immunofluorescence assays. In addition, the RANKL and OPG expression levels in gingival tissues were detected by immunohistochemical assays, and linear regression analysis was used to identify the potential relationship between T‐helper cell polarization and the RANKL/OPG ratio. In total, 22 individuals and 35 patients were enrolled in the present study. In both GCF and gingival tissues, increased levels of IL‐17 and the decreased levels of IL‐4 and IL‐10 were observed in the CP group. When polarized T‐helper cells were identified in gingival tissues, more Th1 and Th17 cells were found in the CP group, whereas more Th2 and Treg cells were found in the PH group. Although there was no significant difference in OPG expression between the two groups, the RANKL/OPG ratio in the CP group was higher than that in the PH group. The linear regression analysis showed that the presence of more Th1 and Th17 cells correlated with a higher RANKL/OPG ratio, whereas the presence of more Th2 cells correlated with a lower RANKL/OPG ratio. Th1 and Th17 cells are positively correlated and Th2 cells are negatively correlated with the RANKL/OPG ratio. Our data suggest that T‐helper cell polarization is closely linked to the RANKL/OPG ratio in gingival tissues from chronic periodontitis patients.
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Affiliation(s)
- Chun-Sheng Bi
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Li-Juan Sun
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Hong-Lei Qu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Fang Chen
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Bei-Min Tian
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
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27
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Andrade EF, Orlando DR, Araújo AMS, de Andrade JNBM, Azzi DV, de Lima RR, Lobo-Júnior AR, Pereira LJ. Can Resveratrol Treatment Control the Progression of Induced Periodontal Disease? A Systematic Review and Meta-Analysis of Preclinical Studies. Nutrients 2019; 11:E953. [PMID: 31035477 PMCID: PMC6566182 DOI: 10.3390/nu11050953] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/16/2019] [Accepted: 04/16/2019] [Indexed: 12/29/2022] Open
Abstract
Resveratrol is an anti-inflammatory compound found in several foods. Periodontal disease (PD) is associated to other systemic diseases, and inflammation may be responsible for the association. Consequently, controlling inflammation not only may benefit oral health but also may assist with the management of other chronic inflammatory conditions. We aimed to investigate the effects of resveratrol administration on PD control in preclinical studies. A systematic search was performed for scientific articles using both electronic databases and a manual search using combinations of the following keywords: "resveratrol" OR "3,5,4'-trihydroxystilbene" AND "periodontal disease" OR "periodontitis" OR "gingivitis". Only in vivo original studies investigating resveratrol treatment on experimental animal models of PD were selected. A quality assessment of the studies was performed using the Animal Research Reporting In Vivo Experiment (ARRIVE) guidelines, and the risk of bias was assessed using the Syrcle tool. The search returned 570 articles, and 11 matched the inclusion criteria. A meta-analysis showed that resveratrol treatment attenuated alveolar bone loss (τ2 = 0.0041; 95% CI: -0.14; -0.04). The ARRIVE criteria reported a good quality of studies in general (mean score 28.5 ± 2.5). However, five Syrcle domains indicated a high risk of bias or did not present information clearly. We concluded that, in preclinical studies, resveratrol treatment prevented PD progression.
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Affiliation(s)
- Eric Francelino Andrade
- Institute of Agricultural Sciences, Universidade dos Vales do Jequitinhonha e Mucuri-UFVJM, Rua Vereador João Narciso, n.º 1380⁻Bairro Cachoeira, Unaí, Minas Gerais 38610-000, Brazil.
| | - Débora Ribeiro Orlando
- Institute of Agricultural Sciences, Universidade dos Vales do Jequitinhonha e Mucuri-UFVJM, Rua Vereador João Narciso, n.º 1380⁻Bairro Cachoeira, Unaí, Minas Gerais 38610-000, Brazil.
| | - Amanda Melo Sant'Anna Araújo
- Institute of Agricultural Sciences, Universidade dos Vales do Jequitinhonha e Mucuri-UFVJM, Rua Vereador João Narciso, n.º 1380⁻Bairro Cachoeira, Unaí, Minas Gerais 38610-000, Brazil.
| | - James Newton Bizetto Meira de Andrade
- Institute of Agricultural Sciences, Universidade dos Vales do Jequitinhonha e Mucuri-UFVJM, Rua Vereador João Narciso, n.º 1380⁻Bairro Cachoeira, Unaí, Minas Gerais 38610-000, Brazil.
| | - Diana Vilela Azzi
- Department of Veterinary Medicine, Universidade Federal de Lavras-UFLA, Mail Box 3037, Lavras, Minas Gerais 37200-000, Brazil.
| | - Renato Ribeiro de Lima
- Department of Exact Sciences, Universidade Federal de Lavras-UFLA, Mail Box 3037, Lavras, Minas Gerais 37200-000, Brazil.
| | - Adalfredo Rocha Lobo-Júnior
- Institute of Agricultural Sciences, Universidade dos Vales do Jequitinhonha e Mucuri-UFVJM, Rua Vereador João Narciso, n.º 1380⁻Bairro Cachoeira, Unaí, Minas Gerais 38610-000, Brazil.
| | - Luciano José Pereira
- Department of Veterinary Medicine, Universidade Federal de Lavras-UFLA, Mail Box 3037, Lavras, Minas Gerais 37200-000, Brazil.
- Department of Health Sciences, Universidade Federal de Lavras-UFLA, Mail Box 3037, Lavras, Minas Gerais 37200-000, Brazil.
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28
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Alahmari F, Javed F, Ahmed ZU, Romanos GE, Al‐Kheraif AA. Soft tissue status and crestal bone loss around conventionally‐loaded dental implants placed in cigarette‐ and waterpipe (narghile) smokers: 8‐years' follow‐up results. Clin Implant Dent Relat Res 2019; 21:873-878. [DOI: 10.1111/cid.12746] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 01/20/2019] [Accepted: 02/12/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Fatemah Alahmari
- Department of Periodontics and Community DentistryCollege of Dentistry, King Saud University Riyadh Saudi Arabia
| | - Fawad Javed
- Department of PeriodontologyStony Brook University Stony Brook New York
- Laboratory for Periodontal‐, Implant‐, Phototherapy (LA‐PIP)School of Dental Medicine, Stony Brook University Stony Brook New York
| | | | - Georgios E. Romanos
- Department of PeriodontologyStony Brook University Stony Brook New York
- Laboratory for Periodontal‐, Implant‐, Phototherapy (LA‐PIP)School of Dental Medicine, Stony Brook University Stony Brook New York
| | - Abdulaziz A. Al‐Kheraif
- Dental Health DepartmentCollege of Applied Medical Sciences, King Saud University Riyadh Saudi Arabia
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29
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Ribeiro FV, Pimentel SP, Corrêa MG, Bortoli JP, Messora MR, Casati MZ. Resveratrol reverses the negative effect of smoking on peri-implant repair in the tibia of rats. Clin Oral Implants Res 2018; 30:1-10. [DOI: 10.1111/clr.13384] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 10/18/2018] [Accepted: 10/24/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Fernanda Vieira Ribeiro
- Dental Research Division, School of Dentistry; Paulista University; São Paulo São Paulo Brazil
| | - Suzana Peres Pimentel
- Dental Research Division, School of Dentistry; Paulista University; São Paulo São Paulo Brazil
| | - Monica Grazieli Corrêa
- Dental Research Division, School of Dentistry; Paulista University; São Paulo São Paulo Brazil
| | - João Paulo Bortoli
- Dental Research Division, School of Dentistry; Paulista University; São Paulo São Paulo Brazil
| | - Michel Reis Messora
- Department of Surgery and Bucco-Maxillofacial Traumatology and Periodontology, Ribeirão Preto School of Dentistry; University of São Paulo; Ribeirão Preto São Paulo Brazil
| | - Marcio Zaffalon Casati
- Dental Research Division, School of Dentistry; Paulista University; São Paulo São Paulo Brazil
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30
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Corrêa MG, Absy S, Tenenbaum H, Ribeiro FV, Cirano FR, Casati MZ, Pimentel SP. Resveratrol attenuates oxidative stress during experimental periodontitis in rats exposed to cigarette smoke inhalation. J Periodontal Res 2018; 54:225-232. [PMID: 30346038 DOI: 10.1111/jre.12622] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/17/2018] [Accepted: 09/12/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVES This study aimed at investigating the effect of the systemic administration of resveratrol (RESV) on oxidative stress during experimental periodontitis in rats subjected to cigarette smoke inhalation. MATERIAL AND METHODS Experimental periodontitis (EP) was induced in 26 male Wistar rats by the insertion of a ligature around one of the first mandibular and maxillary molars. The animals were assigned randomly to the following groups: cigarette smoke inhalation (CSI; 3 times/d, 8 minutes/d) + resveratrol (10 mg/Kg), that is, SMK + RESV (n = 13) and cigarette smoke inhalation + placebo, that is, SMK + PLAC (n = 13). The substances were administered daily for 30 days (19 days prior and 11 days following EP induction), and then, the animals were euthanized. The maxillary specimens were processed for morphometric analysis of bone loss, and the tissue surrounding the first maxillary molars was collected for mRNA quantification of Sirtuin 1 (SIRT1) by real-time PCR. The gingival tissues surrounding the mandibular first molars were collected for quantification of superoxide dismutase 1 (SOD1) and nicotinamide adenine dinucleotide phosphatase oxidase (NADPH) using an ELISA assay. RESULTS Reduced bone loss was demonstrated in animals in the SMK + RESV group as compared to those in the SMK + PLAC (P < 0.05) group on the basis of morphometric analysis. Resveratrol promoted higher levels of SIRT and SOD (P < 0.05) as well as reduced levels of NADPH oxidase (P < 0.05) were found in tissues derived from animals in the SMK + RESV group when compared to those in the SMK + PLAC group. CONCLUSION Resveratrol is an efficient therapeutic agent that reduces exacerbation of bone loss found in animals with EP that were also exposed to smoke. The results suggest that its effects could be mediated, at least in part, by its antioxidant and anti-inflammatory properties which attenuate the effects of oxidative stress on EP in the presence of cigarette smoke.
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Affiliation(s)
- Mônica Grazieli Corrêa
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Samir Absy
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Howard Tenenbaum
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil.,Department of Periodontology, Faculty of Dentistry, Toronto, Ontario, Canada.,Laboratory of Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,School of Dental Medicine, Department of Periodontics, Tel Aviv University, Tel Aviv, Israel.,Department of Dentistry, Sinai Health System, Tel Aviv, Israel
| | - Fernanda Vieira Ribeiro
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Fabiano Ribeiro Cirano
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Marcio Z Casati
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
| | - Suzana Peres Pimentel
- Dental Research Division, School of Dentistry, Paulista University, São Paulo, São Paulo, Brazil
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31
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Abdullahi M, Olotu FA, Soliman ME. Solving the riddle: Unraveling the mechanisms of blocking the binding of leukotoxin by therapeutic antagonists in periodontal diseases. J Cell Biochem 2018; 119:9364-9379. [PMID: 30129224 DOI: 10.1002/jcb.27254] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/21/2018] [Indexed: 12/12/2022]
Abstract
Aggregatibacter actinomycetemcomitans is a Gram-negative bacteria that has gained wide recognition for its causative role in the development of various immune diseases, which includes localized aggressive periodontitis. Its ability to evade host defense mechanisms is mediated by the secretion of leukotoxin (LtxA), which induces death of white blood cells (leukocytes) by specific binding to their surface-expressed leukocyte function-associated receptor (LFA-1) in its active state. Therapeutic compounds that interfere with this pathogenic process and abrogate A. actinomycetemcomitans virulence have been reported in literature. These include doxycycline, and more recently phytochemical compounds such as hamamelitanin, resveratrol, naringin, and quercetin. However, the question remains how do they work? Therefore, with the aid of computational tools, we explore the molecular mechanisms by which they possibly elicit their therapeutic functions. Molecular mechanics Poisson/Boltzmann surface area analyses revealed that these compounds bind favorably to active LFA-1 with high affinity and considerable stability, indicative of their ability to occupy the LtxA binding site (LBS) and prevent LtxA binding. The conformational transition of open LFA-1 to its closed state further describe the mechanistic activity of these compounds. In addition to notable reductions in structural mobility and flexibility, the burial of surface-exposed interactive side chains at the LBS was observed, an occurrence that could alter the complementary binding of LtxA. It is also important to mention that these occurrences were induced more prominently by the phytochemicals. We believe that these findings will enhance the scope of drug design and discovery for potent LtxA antagonists with improved activities and therapeutic efficacies in the treatment of virulent A. actinomycetemcomitans diseases.
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Affiliation(s)
- Maryam Abdullahi
- Molecular Bio-Computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Fisayo A Olotu
- Molecular Bio-Computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Mahmoud E Soliman
- Molecular Bio-Computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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32
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Radvar M, Shafaee H, Mohtasham N, Shiezadeh F, Zamanpour M. The effect of smoking on inflammatory cell infiltrate subtypes in gingival tissue of patients with chronic periodontitis. Electron Physician 2017; 9:4961-4967. [PMID: 28979729 PMCID: PMC5614279 DOI: 10.19082/4961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 06/14/2017] [Indexed: 12/21/2022] Open
Abstract
Background Examinations on blood samples and gingival crevicular fluid of subjects with chronic periodontitis showed that smoking increased production of cytokines. Objective To evaluate the expression of immune markers on mononuclear inflammatory cell infiltrate at periodontitis and healthy tissue among smoking and non-smoking subjects. Methods This case-control study was performed on 41 patients who referred to a clinic of periodontology at a Mashhad dental school in Iran in 2016. The participants were all of Iranian Khorasanian ethnicity with age range of 35–65 years. Gingival biopsies were obtained during routine periodontal flap procedure. Immunohistochemistry using markers of CD20, CD3, CD68, and CD45RO was carried out. Data was analyzed by SPSS version 15, using one-way ANOVA and Tukey HSD test. Results Nonsmoker subjects showed significantly greater numbers of CD20+, CD68+, CD3+ cells compared to smoker subjects, both at healthy and periodontitis tissue biopsies (p<0.00), whereas there was no significant difference in terms of CD45RO (p=0.120). Conclusion Cigarette smoking, results in infiltrative mononuclear chronic inflammatory cells reduction in connective periodontium.
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Affiliation(s)
- Mehrdad Radvar
- Associate Professor, Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hooman Shafaee
- Assistant Professor, Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nooshin Mohtasham
- Assistant Professor, Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farid Shiezadeh
- Associate Professor, Oral & Maxillofacial Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mona Zamanpour
- Assistant Professor, Department of Periodontics, School of Dentistry, Khorasan Shomali University of Medical Sciences, Boujnord, Iran
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33
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Impact of resveratrol on bone repair in rats exposed to cigarette smoke inhalation: histomorphometric and bone-related gene expression analysis. Int J Oral Maxillofac Surg 2017; 47:541-548. [PMID: 28927744 DOI: 10.1016/j.ijom.2017.08.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 08/10/2017] [Accepted: 08/14/2017] [Indexed: 02/03/2023]
Abstract
This study investigated the effect of resveratrol on bone healing and its influence on the gene expression of bone-related markers in rats exposed to cigarette smoke. Two calvarial defects were created in each of 60 rats, which were assigned equally (n=20) to three groups: (1) resveratrol (10mg/kg)+smoke exposure (SMK+RESV); (2) placebo+smoke exposure (SMK+PLA); or (3) placebo+no smoke exposure (NS+PLA). Substances were administered daily for 30days following surgery. Smoke inhalation was started 7days before surgery and continued for 30days after surgery. One defect was processed for histomorphometric analysis and the other was used for mRNA quantification of bone-related gene expression by qPCR. The remaining defect was smaller in the SMK+RESV (2.27±0.61mm, P=0.0003) and NS+PLA (2.17±0.74mm, P=0.0005) groups than in the SMK+PLA group (3.12±0.47mm). Higher levels of Runx2 were observed in the NS+PLA group than in the smoke exposure groups (vs. SMK+PLA, P=0002; vs. SMK+RESV, P=0.052); levels of Lrp-5 were also higher in the no smoke exposure group (vs. SMK+RESV, P=0.009; vs. SMK+PLA, P=0.003). Resveratrol therapy decreased RANKL/OPG expression when compared to placebo (SMK+RESV vs. SMK+PLA, P=0.017). Dkk1 levels were decreased in the SMK+RESV group when compared to the SMK+PLA (P=0.006) and NS+PLA groups (P=0.005). In conclusion, resveratrol optimizes the repair of critical-sized bone defects, up-regulating the gene expression of important bone remodelling markers in rats exposed to cigarette smoke inhalation.
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