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Cannon M, Dempsey E, Cosantino A, Chandel N, Ghoreishi-Haack N. Cancer Cell Line Inhibition by Osmotic Pump-administered Xylitol in a Syngeneic Mouse Model. RESEARCH SQUARE 2024:rs.3.rs-3977059. [PMID: 38645111 PMCID: PMC11030531 DOI: 10.21203/rs.3.rs-3977059/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Background This study aimed to evaluate the effects of continuous administration of xylitol (a commonly used dental prebiotic) via a subcutaneous osmotic minipump in a B16F10 syngeneic mouse model. Methods The B16F10 syngeneic model consisted of 6-8-week-old C57BL/6 male mice subcutaneously injected with five × 105 B16F10 cells suspended in 100 μl PBS in the right flank. The mice were randomly assigned to two groups: Group 1 was the treatment group with 10% xylitol-loaded pumps (n=10), while Group 2 was the control group with saline-loaded pumps (n=10). Alzet minipumps were implanted subcutaneously in the left flank of B16F10-injected mice once more than 50% of all mice developed palpable tumors. After pump implantation surgery, the mice were monitored daily and weighed 2-3x/week. Tumor sizes were measured with calipers 2-3x/week, and all mice were euthanized when their tumors became too large (20 mm on any axis or 2,000 mm3). The excised tumors were weighed and cut in half, with one half sent for histology and the other for metabolomic analysis. Results The xylitol-treated group survived substantially longer than the control group. The tumor size was reduced by approximately 35% by volume. Histological sections of xylitol treat mice suggested reduced infiltration and angiogenesis, which is consistent with previous studies. The metabolomic analysis demonstrates that xylitol reduces the tumor production of histamine, NADP+, ATP, and glutathione from the tumor, thereby improving the host immune response with ROS reactive oxygen species. Conclusions The results of this study suggest that xylitol has potential as an adjunct to oncological treatment and is being further investigated in comparison to monoclonal antibody therapy (Opdualag).
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Affiliation(s)
- Mark Cannon
- Robert H Lurie Comprehensive Cancer Center -Northwestern University
| | | | | | - Navdeep Chandel
- Robert H Lurie Comprehensive Cancer Center -Northwestern University
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Erbiai EH, Amina B, Kaoutar A, Saidi R, Lamrani Z, Pinto E, Esteves da Silva JCG, Maouni A, Pinto da Silva L. Chemical Characterization and Evaluation of Antimicrobial Properties of the Wild Medicinal Mushroom Ganoderma lucidum Growing in Northern Moroccan Forests. Life (Basel) 2023; 13:life13051217. [PMID: 37240862 DOI: 10.3390/life13051217] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023] Open
Abstract
Ganoderma lucidum is an extensively famous medicinal mushroom distributed worldwide. Despite being widely grown in Moroccan forests, there are no studies on its nutritional, nutraceutical and pharmaceutical values. Herein, the objective of this study was to investigate the chemical characterization and antimicrobial properties of G. lucidum methanolic extract. Total phenolic, flavonoid, tannin, ascorbic acid and carotenoid contents were determined by spectrophotometry. The results revealed that the most prevalent bioactive compounds were phenolics and flavonoids, with total values of 154.60 mg GAE/g of dry methanolic extract (dme) and 60.55 mg CE/mg of dme, respectively. A GC-MS analysis identified 80 biologically active molecules, which were mainly divided into the following major groups: sugars (49.49%), organic acids (8.89%), fatty acids (7.75%), amino acids (7.44%), steroids (7.32%), polyphenols (5.92%), and others (13.16%). Additionally, 22 individual phenolic compounds were identified and quantified using HPLC-MS, with emphasis on kaempferol (1714 µg/g of dry weight (dw)), apigenin (1955 µg/g dw) and quercetin (947.2 µg/g dw). The methanolic extract of G. lucidum indicated strong antioxidant capacity by means of the following: DPPH radical-scavenging activity (53.7 µg/mL), β-carotene/linoleate assay (43.75 µg/mL), and reducing power assay (76.62 µg/mL). Furthermore, the extract exhibited potent antimicrobial properties against seven human pathogenic microorganisms, including two bacteria and five fungal strains, at concentrations ranging from 1 to 16 mg/mL. The most sensitive pathogen was Epidermophyton floccosum (MIC = MFC = 1 mg/mL), while Aspergillus fumigatus was the most resistant one (MIC = 16 mg/mL and MFC ≥ 16 mg/mL). Overall, our findings demonstrated valuable nutritional and bioactive compound attributes, and potent antioxidant and antimicrobial properties, of G. lucidum growing in Moroccan forests. Moreover, these findings suggest that the Moroccan mushroom can be extremely useful for the food and medicinal industries to positively affect socioeconomic status.
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Affiliation(s)
- El Hadi Erbiai
- Biology, Environment, and Sustainable Development Laboratory, ENS, Abdelmalek Essaadi University, Tetouan 93000, Morocco
- Chemistry Research Unit (CIQUP), Institute of Molecular Sciences (IMS), Department of Sciences, Environment and Territorial Planning, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Benoutman Amina
- Biology, Environment, and Sustainable Development Laboratory, ENS, Abdelmalek Essaadi University, Tetouan 93000, Morocco
| | - Abbassi Kaoutar
- Biology, Environment, and Sustainable Development Laboratory, ENS, Abdelmalek Essaadi University, Tetouan 93000, Morocco
| | - Rabah Saidi
- Biology, Environment, and Sustainable Development Laboratory, ENS, Abdelmalek Essaadi University, Tetouan 93000, Morocco
| | - Zouhaire Lamrani
- Biology, Environment, and Sustainable Development Laboratory, ENS, Abdelmalek Essaadi University, Tetouan 93000, Morocco
| | - Eugénia Pinto
- Laboratory of Microbiology, Biological Sciences Department, Faculty of Pharmacy, University of Porto (FFUP), 4050-313 Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, 4450-208 Matosinhos, Portugal
| | - Joaquim C G Esteves da Silva
- Chemistry Research Unit (CIQUP), Institute of Molecular Sciences (IMS), Department of Sciences, Environment and Territorial Planning, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Abdelfettah Maouni
- Biology, Environment, and Sustainable Development Laboratory, ENS, Abdelmalek Essaadi University, Tetouan 93000, Morocco
| | - Luís Pinto da Silva
- Chemistry Research Unit (CIQUP), Institute of Molecular Sciences (IMS), Department of Sciences, Environment and Territorial Planning, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
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Chen SY, Delacruz J, Kim Y, Kingston R, Purvis L, Sharma D. Effect of xylitol on Porphyromonas gingivalis: A systematic review. Clin Exp Dent Res 2023; 9:265-275. [PMID: 36894516 PMCID: PMC10098279 DOI: 10.1002/cre2.724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 03/11/2023] Open
Abstract
OBJECTIVE This review was conducted to assess the effectiveness of xylitol against Porphyromonas gingivalis anaerobic species, a key microbe contributing to periodontal disease pathogenesis. MATERIAL AND METHODS Relevant studies published on seven online databases (Cochrane, Ovid, Pubmed, Pubmed Central, Scopus, Google Scholar, and Web of Science) were included in accordance with the PRISMA guidelines. Inclusion criteria allowed all study designs involving xylitol and P. gingivalis, literature published since the year 2000, and all xylitol delivery forms. RESULTS The initial search yielded 186 papers. After the removal of duplicates, five reviewers screened every article for eligibility and seven articles were selected for data extraction. Four out of seven included studies assessed the dose-dependent effect of xylitol on P. gingivalis growth, two studies assessed the effect of xylitol on P. gingivalis-induced cytokine expression, and one study assessed both domains. CONCLUSIONS From the in vitro studies included in this systematic review, there is some evidence of xylitol's inhibitory effect on P. gingivalis. However, more evidence derived from in vivo studies is required to confirm its effectiveness warranting their routine use.
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Affiliation(s)
- Sau You Chen
- Department of Periodontics, College of Medicine and Dentistry, James Cook University, Townsville, Queensland, Australia
| | - Joshua Delacruz
- Department of Periodontics, College of Medicine and Dentistry, James Cook University, Townsville, Queensland, Australia
| | - Yong Kim
- Department of Periodontics, College of Medicine and Dentistry, James Cook University, Townsville, Queensland, Australia
| | - Roger Kingston
- Department of Periodontics, College of Medicine and Dentistry, James Cook University, Townsville, Queensland, Australia
| | - Laura Purvis
- Department of Periodontics, College of Medicine and Dentistry, James Cook University, Townsville, Queensland, Australia
| | - Dileep Sharma
- Department of Periodontics, College of Medicine and Dentistry, James Cook University, Townsville, Queensland, Australia.,Discipline of Oral Health Thearpy, School of Health Sciences, College of Health, Medicine and Wellbeing, The University of Newcastle, Ourimbah, New South Wales, Australia.,Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, Queensland, Australia
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Partial Substitution of Glucose with Xylitol Prolongs Survival and Suppresses Cell Proliferation and Glycolysis of Mice Bearing Orthotopic Xenograft of Oral Cancer. Nutrients 2022; 14:nu14102023. [PMID: 35631164 PMCID: PMC9148106 DOI: 10.3390/nu14102023] [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: 04/22/2022] [Revised: 05/07/2022] [Accepted: 05/08/2022] [Indexed: 02/04/2023] Open
Abstract
Many types of cancer have metabolic alterations with increased glycolysis. Identification of alternative sweeteners that do not fuel cancer is a novel approach to cancer control. The present study aimed to investigate the effects of xylitol on tumor growth and survival of mice bearing orthotopic xenograft of tongue cancers. The results showed that partial substitution of glucose with xylitol (glucose 0.35 g plus xylitol 2.06 g/kg body weight) non-significantly reduced tumor volume, and significantly prolonged the median survival time from 19 days in the control to 30.5 days in the xylitol group. Immunohistochemical data of the tongue tissue shows significantly lower intense-to-mild staining ratios of the proliferation marker Ki-67 in the xylitol than those of the control group (p = 0.04). Furthermore, the xylitol substitution significantly reduced the expression of the rate-limiting glycolytic enzyme, phosphofructokinase-1 (PFK-1) (p = 0.03), and showed a non-significant inhibition of PFK activity. In summary, partial substitution of glucose with xylitol at the equivalent dose to human household use of 10 g/day slows down tumor proliferation and prolongs survival of mice bearing an orthotopic oral cancer xenograft, possibly through glycolytic inhibition, with minimal adverse events. The insight warrants clinical studies to confirm xylitol as a candidate sweetener in food products for cancer survivors.
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Antiplaque and antigingivitis efficacy of medicated and non-medicated sugar-free chewing gum as adjuncts to toothbrushing: systematic review and network meta-analysis. Clin Oral Investig 2022; 26:1155-1172. [DOI: 10.1007/s00784-021-04264-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 10/26/2021] [Indexed: 12/28/2022]
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Zhang Q, Xu T, Bai N, Tan F, Zhao H, Liu J. Lectin‑type oxidized LDL receptor 1 modulates matrix metalloproteinase 2 production in peri‑implantitis. Exp Ther Med 2021; 23:171. [PMID: 35069852 DOI: 10.3892/etm.2021.11094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/27/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
- Qian Zhang
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Tao Xu
- School of Stomatology of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Na Bai
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Fei Tan
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Hongmei Zhao
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jie Liu
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
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Martinon P, Fraticelli L, Giboreau A, Dussart C, Bourgeois D, Carrouel F. Nutrition as a Key Modifiable Factor for Periodontitis and Main Chronic Diseases. J Clin Med 2021; 10:jcm10020197. [PMID: 33430519 PMCID: PMC7827391 DOI: 10.3390/jcm10020197] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/26/2020] [Accepted: 01/04/2021] [Indexed: 02/06/2023] Open
Abstract
Nutrition is recognized as an essential component in the prevention of a number of chronic diseases, including periodontal disease. Based on these considerations, a better understanding is required regarding how the diet, and more particularly the intake of macronutrients and micronutrients, could impact the potential relationship between nutrition and periodontal diseases, periodontal diseases and chronic diseases, nutrition and chronic diseases. To overcome this complexity, an up-to-date literature review on the nutriments related to periodontal and chronic diseases was performed. High-sugar, high-saturated fat, low-polyols, low-fiber and low-polyunsaturated-fat intake causes an increased risk of periodontal diseases. This pattern of nutrients is classically found in the Western diet, which is considered as an ‘unhealthy’ diet that causes cardiovascular diseases, diabetes and cancers. Conversely, low-sugar, high-fiber and high-omega-6-to-omega-3 fatty acid ratio intake reduces the risk of periodontal diseases. The Mediterranean, DASH, vegetarian and Okinawa diets that correspond to these nutritional intakes are considered as ‘healthy’ diets, reducing this risk of cardiovascular diseases, diabetes and cancers. The role of micronutrients, such as vitamin D, E, K and magnesium, remains unclear, while others, such as vitamin A, B, C, calcium, zinc and polyphenols have been shown to prevent PDs. Some evidence suggests that probiotics and prebiotics could promote periodontal health. Periodontal and chronic diseases share, with a time delay, nutrition as a risk factor. Thus, any change in periodontal health should be considered as a warning signal to control the dietary quality of patients and thus reduce the risk of developing chronic diseases later on.
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Affiliation(s)
- Prescilla Martinon
- Laboratory “Systemic Health Care”, University of Lyon, University Claude Bernard Lyon 1, EA4129, 69008 Lyon, France; (P.M.); (L.F.); (C.D.); (D.B.)
| | - Laurie Fraticelli
- Laboratory “Systemic Health Care”, University of Lyon, University Claude Bernard Lyon 1, EA4129, 69008 Lyon, France; (P.M.); (L.F.); (C.D.); (D.B.)
| | - Agnes Giboreau
- Institute Paul Bocuse Research Center, 69130 Ecully, France;
| | - Claude Dussart
- Laboratory “Systemic Health Care”, University of Lyon, University Claude Bernard Lyon 1, EA4129, 69008 Lyon, France; (P.M.); (L.F.); (C.D.); (D.B.)
| | - Denis Bourgeois
- Laboratory “Systemic Health Care”, University of Lyon, University Claude Bernard Lyon 1, EA4129, 69008 Lyon, France; (P.M.); (L.F.); (C.D.); (D.B.)
| | - Florence Carrouel
- Laboratory “Systemic Health Care”, University of Lyon, University Claude Bernard Lyon 1, EA4129, 69008 Lyon, France; (P.M.); (L.F.); (C.D.); (D.B.)
- Correspondence: ; Tel.: +33-4-78-78-57-44
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Zhao R, Xie Y, Yang B, Wang C, Huang Q, Han Y, Yang L, Yan S, Wang X, Fu C, Wu D, Wu X. Identification of metabolic biomarkers to predict treatment outcome and disease progression in multiple myeloma. Am J Cancer Res 2020; 10:3935-3946. [PMID: 33294278 PMCID: PMC7716146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 08/22/2020] [Indexed: 06/12/2023] Open
Abstract
The relationship between metabolites and multiple myeloma (MM) is becoming a research focus in the field. In this study, we performed metabolic profiling of multiple myeloma and identified potential metabolites associated with clinical characteristics, therapeutic efficacy, and prognosis of the disease. Fifty-five patients with newly-diagnosed multiple myeloma and thirty-seven healthy controls from August 2016 to October 2017 were randomly collected. The serum metabolic profiling was investigated by gas chromatography-mass spectrometry (GC-MS) technique and underwent statistical analysis. Twenty-seven metabolites were found to be significantly different between healthy controls and multiple myeloma patients. Eleven metabolites were significantly elevated, while sixteen metabolites were decreased in the multiple myeloma population. Metabolic changes were also observed in patients with renal impairment and bone destruction. Levels of urea were significantly decreased after treatment while levels of hypotaurine showed significant increase in the good-effect group (P<0.05), but not in the no-good-effect group (P>0.05). In multivariate statistical analyses, high cysteine and high hypotaurine are independent risk factors for poor treatment outcome. After adjustment for critical clinical characteristics, patients with high levels of glycolic acid and xylitol were found to be less likely to experience disease progression. Multiple myeloma demonstrates different metabolic characteristics compared with the healthy population. Among multiple myeloma patients, renal impairment and bone destruction showed additional metabolic characteristics. Cysteine and hypotaurine have value in predicting the treatment outcome, while glycolic acid and xylitol may be important prognostic factors for multiple myeloma.
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Affiliation(s)
- Ranran Zhao
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow UniversitySuzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow UniversitySuzhou, China
| | - Yiyu Xie
- Yale New Haven Health/Bridgeport HospitalBridgeport, USA
| | - Bingyu Yang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow UniversitySuzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow UniversitySuzhou, China
| | - Chang Wang
- School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Jiangsu Provincial Key Laboratory of Radiation Medicine and ProtectionSuzhou, China
| | - Qianlei Huang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow UniversitySuzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow UniversitySuzhou, China
| | - Yue Han
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow UniversitySuzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow UniversitySuzhou, China
| | - Lulu Yang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow UniversitySuzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow UniversitySuzhou, China
| | - Shuang Yan
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow UniversitySuzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow UniversitySuzhou, China
| | - Xiaogang Wang
- Department of Mathematics and Statistics, York UniversityToronto, Canada
| | - Chengcheng Fu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow UniversitySuzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow UniversitySuzhou, China
| | - Depei Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow UniversitySuzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow UniversitySuzhou, China
| | - Xiaojin Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow UniversitySuzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow UniversitySuzhou, China
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Zhang Q, Xu H, Bai N, Tan F, Xu H, Liu J. Matrix Metalloproteinase 9 is Regulated by LOX-1 and erk1/2 Pathway in Dental Peri-Implantitis. Curr Pharm Biotechnol 2020; 21:862-871. [PMID: 32081107 DOI: 10.2174/1389201021666200221121139] [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: 08/19/2019] [Revised: 12/12/2019] [Accepted: 02/07/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND OBJECTIVE Dental peri-implantitis, which can be caused by several different microbial factors, is characterized by inflammatory lesions of the surrounding hard and soft tissues of an oral implant. Matrix Metalloproteinase 9 (MMP9) is thought to be involved in the pathogenesis of peri-implantitis. However, the regulatory mechanism of MMP9 in peri-implantitis has not been fully elucidated. In this study, we tried to evaluate the regulatory mechanism of MMP9 in peri-implantitis. METHODS We collected Peri-Implant Crevicular Fluid (PICF) from ten healthy implants and ten periimplantitis patients and compared their expression level of MMP9. We also cultured macrophages from the peripheral blood of healthy volunteers infected by Porphyromonas gingivalis to reveal the regulatory mechanism of MMP9 in peri-implantitis. Western blot, immunofluorescence staining and quantitative Polymerase Chain Reaction (RT-PCR) were used to better characterize the mechanism of MMP9. RESULTS The expression of MMP9 was up-regulated in peri-implantitis patient PICF and P. gingivalis infected human macrophages. LOX-1, not dectin-1, was found to mediate MMP9 expression in human macrophages with P. gingivalis infection. Expression of Erk1/2 was responsible for infection-induced MMP9 expression. Finally, use of a broad-spectrum metalloproteinase inhibitor impaired LOX-1 expression in infected macrophages. CONCLUSION Our results demonstrate that MMP9 is involved in dental peri-implantitis and is regulated by LOX-1 and Erk1/2. This LOX-1/MMP9 signaling pathway may represent a potential drug target for peri-implantitis.
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Affiliation(s)
- Qian Zhang
- Department of Prosthodontics, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, China
| | - Haitao Xu
- Department of Prosthodontics, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, China
| | - Na Bai
- Department of Prosthodontics, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, China
| | - Fei Tan
- Department of Prosthodontics, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, China
| | - Huirong Xu
- Department of Pathology, ZiBo Central Hospital, ZiBo, Shandong 255000, China
| | - Jie Liu
- Department of Prosthodontics, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, China
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10
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Akgül Ö, Topaloğlu Ak A, Zorlu S, Öner Özdaş D, Uslu M, Çayirgan D. Effects of short-term xylitol chewing gum on pro-inflammatory cytokines and Streptococcus mutans: A randomised, placebo-controlled trial. Int J Clin Pract 2020; 74:e13623. [PMID: 32729244 DOI: 10.1111/ijcp.13623] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 07/15/2020] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Dental caries is an infectious disease with predominantly of cariogenic bacteria such as Streptococcus mutans (S mutans). Xylitol is considered as one of the effective agents that can limit this dental infection. In this randomised, placebo-controlled trial, we aimed to evaluate the potential reflection of short-term xylitol consumption on pro-inflammatory cytokines (TNF-α, IL-6 and IL-8) and S mutans counts by ELISA and qPCR (Quantitative real-time PCR), respectively. METHODS In this study, 154 participants were assigned to two groups, control and xylitol. Dental examination, saliva and swab samples were done at baseline and at 3-week for clinical and microbiological assessment. RESULTS In xylitol group at the end of 3-week, gingival and plaque index scores were significantly decreased with respect to baseline values (P < .001 and P < .05, respectively). The salivary concentration of TNF-α, IL-6 and IL-8 were statistically declined at 3-week, more so than those at baseline in xylitol group (P < .001). S mutans expression was reduced about fivefold at 3-week use of xylitol and it was a statistically significant difference compared to baseline (P < .001). CONCLUSION Intriguingly, even short-term consumption of xylitol might play a favourable role in maintaining the oral health status, possibly as a result of decreasing the release of pro-inflammatory cytokines and the counts of S mutans. Nonetheless, this investigation warrants further endorsement.
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Affiliation(s)
- Özer Akgül
- Department of Medical Microbiology, Faculty of Medicine, Istanbul Aydin University, Istanbul, Turkey
| | - Aslı Topaloğlu Ak
- Department of Pedodontics, School of Dentistry, Istanbul Aydin University, Istanbul, Turkey
| | - Sevgi Zorlu
- Department of Pedodontics, School of Dentistry, Istanbul Aydin University, Istanbul, Turkey
| | - Didem Öner Özdaş
- Department of Pedodontics, School of Dentistry, Istanbul Aydin University, Istanbul, Turkey
| | - Melisa Uslu
- Department of Pedodontics, School of Dentistry, Istanbul Aydin University, Istanbul, Turkey
| | - Dilara Çayirgan
- Department of Pedodontics, School of Dentistry, Istanbul Aydin University, Istanbul, Turkey
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Tomonobu N, Komalasari NLGY, Sumardika IW, Jiang F, Chen Y, Yamamoto KI, Kinoshita R, Murata H, Inoue Y, Sakaguchi M. Xylitol acts as an anticancer monosaccharide to induce selective cancer death via regulation of the glutathione level. Chem Biol Interact 2020; 324:109085. [PMID: 32275922 DOI: 10.1016/j.cbi.2020.109085] [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: 01/28/2020] [Revised: 03/19/2020] [Accepted: 04/02/2020] [Indexed: 12/12/2022]
Abstract
Herbal medicines and their bioactive compounds are increasingly being recognized as useful drugs for cancer treatments. The parasitic fungus Cordyceps militaris is an attractive anticancer herbal since it shows very powerful anticancer activity due to its phytocompound cordycepin. We previously discovered and reported that a high amount of xylitol is present in Cordyceps militaris extract, and that xylitol unexpectedly showed anticancer activity in a cancer-selective manner. We thus hypothesized that xylitol could become a useful supplement to help prevent various cancers, if we can clarify the specific machinery by which xylitol induces cancer cell death. It is also unclear whether xylitol acts on cancer suppression in vivo as well as in vitro. Here we show for the first time that induction of the glutathione-degrading enzyme CHAC1 is the main cause of xylitol-induced apoptotic cell death in cancer cells. The induction of CHAC1 is required for the endoplasmic reticulum (ER) stress that is triggered by xylitol in cancer cells, and is linked to a second induction of oxidative stress in the treated cells, and eventually leads to apoptotic cell death. Our in vivo approach also demonstrated that an intravenous injection of xylitol had a tumor-suppressing effect in mice, to which the xylitol-triggered ER stress also greatly contributed. We also observed that xylitol efficiently sensitized cancer cells to chemotherapeutic drugs. Based on our findings, a chemotherapeutic strategy combined with xylitol might improve the outcomes of patients facing cancer.
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Affiliation(s)
- Nahoko Tomonobu
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama-shi, Okayama, 700-8558, Japan
| | - Ni Luh Gede Yoni Komalasari
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama-shi, Okayama, 700-8558, Japan; Faculty of Medicine, Udayana University, Denpasar, 80232, Bali, Indonesia
| | - I Wayan Sumardika
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama-shi, Okayama, 700-8558, Japan; Faculty of Medicine, Udayana University, Denpasar, 80232, Bali, Indonesia
| | - Fan Jiang
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama-shi, Okayama, 700-8558, Japan
| | - Youyi Chen
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama-shi, Okayama, 700-8558, Japan
| | - Ken-Ichi Yamamoto
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama-shi, Okayama, 700-8558, Japan
| | - Rie Kinoshita
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama-shi, Okayama, 700-8558, Japan
| | - Hitoshi Murata
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama-shi, Okayama, 700-8558, Japan
| | - Yusuke Inoue
- Faculty of Science and Technology, Division of Molecular Science, Gunma University, 1-5-1 Tenjin-cho, Kiryu-shi, Gunma, 376-8515, Japan
| | - Masakiyo Sakaguchi
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama-shi, Okayama, 700-8558, Japan.
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Asa'ad F, Monje A, Larsson L. Role of epigenetics in alveolar bone resorption and regeneration around periodontal and peri‐implant tissues. Eur J Oral Sci 2019; 127:477-493. [DOI: 10.1111/eos.12657] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Farah Asa'ad
- Institute of Odontology The Sahlgrenska Academy University of Gothenburg Göteborg Sweden
| | - Alberto Monje
- Department of Oral Surgery and Stomatology ZMK School of Dentistry Bern Switzerland
- Department of Periodontology Universitat Internacional de Catalunya Barcelona Spain
| | - Lena Larsson
- Department of Periodontology Institute of Odontology University of Gothenburg Göteborg Sweden
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Zhang Q, Liu J, Ma L, Bai N, Xu H. LOX-1 is involved in TLR2 induced RANKL regulation in peri-implantitis. Int Immunopharmacol 2019; 77:105956. [PMID: 31655342 DOI: 10.1016/j.intimp.2019.105956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 09/13/2019] [Accepted: 09/30/2019] [Indexed: 02/06/2023]
Abstract
PURPOSE To explore whether receptor activator of nuclear factor kappa-B ligand (RANKL) is involved in the nosogenesis of peri-implantitis and to reveal the regulatory mechanism in Porphyromonas gingivalis induced RANKL production. METHODS Therefore, we collected peri-implant crevicular fluid (PICF) and gingival tissues from healthy implants and peri-implantitis patients. The expression of RANKL in samples was tested by ELISA, Western blot and immunofluorescence staining. The production of RANKL in THP-1 macrophages stimulated with P. gingivalis was detected by qRT-PCR and Western blot. Then macrophages were pre-treated with neutralizing antibodies of Toll-like receptor 2 (TLR2) or lectin-type oxidized LDL receptor 1 (LOX-1) and inhibitors of TLR2, LOX-1 or Erk1/2 before P. gingivalis stimulation to evaluate the roles of TLR2, LOX-1 and Erk1/2 in RANKL production by qRT-PCR and Western blot. RESULTS The protein level of RANKL was higher in PICF of peri-implantitis patients than healthy implants. We observed increased RANKL expression in P. gingivalis infected macrophages compared to controls. RANKL induced by P. gingivalis stimulation was mediated by TLR2 and Erk1/2 signaling pathway in THP-1 macrophages. LOX-1 is involved in TLR2 induced RANKL expression. CONCLUSION RANKL was involved in peri-implantitis, and regulated by TLR2, LOX-1 and Erk1/2 signaling against P. gingivalis infection. As the novel inflammation pathway triggers, TLR2 and LOX-1 which mediate RANKL production seems to be potential drug targets of peri-implantitis.
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Affiliation(s)
- Qian Zhang
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
| | - Jie Liu
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Lei Ma
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Na Bai
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Huirong Xu
- Department of Pathology, ZiBo Central Hospital, ZiBo, Shandong Province, China
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Zhang Q, Liu J, Ma L, Bai N, Xu H. Wnt5a is involved in LOX-1 and TLR4 induced host inflammatory response in peri-implantitis. J Periodontal Res 2019; 55:199-208. [PMID: 31593304 DOI: 10.1111/jre.12702] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 08/16/2019] [Accepted: 09/21/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVE Peri-implantitis is a plaque-associated pathological condition occurring in tissues around dental implants, characterized by inflammation in the peri-implant mucosa and subsequent progressive loss of supporting bone. Wnt5a is the activating ligand of the non-canonical Wnt signaling pathways and plays important roles in leukocyte infiltration and cytokine/ chemokine production in inflammatory disorders. Previous studies showed that Wnt5a was significantly up-regulated in gingival tissues of chronic and aggressive periodontitis. However, the roles and the regulatory mechanisms of Wnt5a in peri-implantitis are not well known. METHODS The expression of Wnt5a in gingival tissues collected from 8 healthy implant patients and 8 peri-implantitis patients was analyzed by Western blotting and immunofluorescence. Porphyromonas gingivalis infected macrophages isolated from the peripheral blood of healthy volunteers were used as an in vitro cellular model of peri-implantitis. Using neutralizing antibodies, inhibitors and siRNA, the production and roles of Wnt5a in peri-implantitis were assessed by immunofluorescence, quantitative polymerase chain reaction (RT-PCR) and Western blotting. Unpaired two-tailed Student's t test was used to compare qRT-PCR and Western blotting results. P ≤ .05 was considered statistically significant. RESULTS Wnt5a was highly expressed in the gingival tissues of peri-implantitis patients. Compared to controls, Wnt5a increased in P gingivalis infected macrophages. Wnt5a production in response to P gingivalis infection was dependent on LOX-1 and TLR4. Compared to controls, Wnt5a knockdown impaired IL-1β, MCP-1, and MMP2 production induced by P gingivalis infection. CONCLUSION Our results indicate that Wnt5a is involved in LOX-1 and TLR4 induced inflammatory signature via inflammatory cytokines production in response to P gingivalis infection. These findings demonstrate that Wnt5a maybe an important component of the host immune response in peri-implantitis.
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Affiliation(s)
- Qian Zhang
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jie Liu
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lei Ma
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Na Bai
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Huirong Xu
- Department of Pathology, ZiBo Central Hospital, ZiBo, China
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Yang X, Pan Y, Xu X, Tong T, Yu S, Zhao Y, Lin L, Liu J, Zhang D, Li C. Sialidase Deficiency in Porphyromonas gingivalis Increases IL-12 Secretion in Stimulated Macrophages Through Regulation of CR3, IncRNA GAS5 and miR-21. Front Cell Infect Microbiol 2018; 8:100. [PMID: 29675399 PMCID: PMC5895773 DOI: 10.3389/fcimb.2018.00100] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 03/16/2018] [Indexed: 12/31/2022] Open
Abstract
Porphyromonas gingivalis (P. gingivalis) is a major periodontal pathogen that can induce an immune response leading to a destructive inflammatory process. During the inflammatory process, interleukin-12 (IL-12) is secreted, correlating with bacterial clearance by macrophages. Bacterial sialidase has recently been shown to influence the synthesis and modification of the macromolecules on its surface, and is associated with the interaction between bacteria and host cells. We have previously constructed a P. gingivalis sialidase gene mutant strain in P. gingivalis W83 (ΔPG0352) and found that ΔPG0352 showed less pathogenicity than the wild-type strain. In this study, U937-differentiated macrophages were stimulated by P. gingivalis W83, ΔPG0352, or PG0352 complemented strain (comΔPG0352). Transmission electron microscopy showed that P. gingivalis caused a loss of membrane integrity in macrophages and the intracellular bacteria were enclosed within endocytic vacuoles. The expression of both IL-12p35 and IL-12p40 genes and the levels of IL-12p70 were significantly higher in U937 stimulated by ΔPG0352 than in those with P. gingivalis W83 and comΔPG0352. In order to explain why ΔPG0352 induced more IL-12 in macrophages, immunofluorescence assays, PCR arrays, and gene silence or overexpression experiments were carried out. Immunofluorescence assays showed that ΔPG0352 induced lower expression of CR3 in macrophages. After CR3 was suppressed, there were no significant differences in the IL-12p70 levels between macrophages stimulated by P. gingivalis W83, ΔPG0352 or comΔPG0352. PCR array experiments showed that miR-21 and lncRNA GAS5 were differentially expressed between macrophages stimulated by P. gingivalis W83 and ΔPG0352, which had been identified by real-time PCR. The results of CR3 blocking and lncRNA GAS5 gene silence or overexpression showed that the difference in IL-12 levels between P. gingivalis W83 and ΔPG0352 groups was associated with CR3, lncRNA GAS5 and miR-21. Thus it can be concluded that the sialidase-deficient strain is more easily cleared by attenuating CR3 activation, reducing the inhibition of lncRNA GAS5, inducing less miR-21 and more IL-12 in macrophages. These results indicate that inhibiting the activity of sialidase in P. gingivalis will cause rapid clearing by macrophages.
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Affiliation(s)
- Xue Yang
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China.,Shenyang Medical College, Shenyang, China
| | - Yaping Pan
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
| | - Xiaoyu Xu
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China.,Department of Periodontics, Dalian Stomatology Hospital, Dalian Shi, China
| | - Tong Tong
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
| | - Shiwen Yu
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
| | - Yue Zhao
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
| | - Li Lin
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
| | - Jingbo Liu
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China.,Liaoning Province Key Laboratory of Oral Diseases, Shenyang, China
| | - Dongmei Zhang
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China.,Liaoning Province Translational Medicine Research Center of Oral Diseases, Shenyang, China
| | - Chen Li
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
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Chitosan Biomaterials for Current and Potential Dental Applications. MATERIALS 2017; 10:ma10060602. [PMID: 28772963 PMCID: PMC5553419 DOI: 10.3390/ma10060602] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 05/27/2017] [Accepted: 05/27/2017] [Indexed: 01/05/2023]
Abstract
Chitosan (CHS) is a very versatile natural biomaterial that has been explored for a range of bio-dental applications. CHS has numerous favourable properties such as biocompatibility, hydrophilicity, biodegradability, and a broad antibacterial spectrum (covering gram-negative and gram-positive bacteria as well as fungi). In addition, the molecular structure boasts reactive functional groups that provide numerous reaction sites and opportunities for forging electrochemical relationships at the cellular and molecular levels. The unique properties of CHS have attracted materials scientists around the globe to explore it for bio-dental applications. This review aims to highlight and discuss the hype around the development of novel chitosan biomaterials. Utilizing chitosan as a critical additive for the modification and improvement of existing dental materials has also been discussed.
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Najeeb S, Zafar MS, Khurshid Z, Zohaib S, Almas K. The Role of Nutrition in Periodontal Health: An Update. Nutrients 2016; 8:E530. [PMID: 27589794 PMCID: PMC5037517 DOI: 10.3390/nu8090530] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 08/22/2016] [Accepted: 08/23/2016] [Indexed: 12/21/2022] Open
Abstract
Periodontal health is influenced by a number of factors such as oral hygiene, genetic and epigenetic factors, systemic health, and nutrition. Many studies have observed that a balanced diet has an essential role in maintaining periodontal health. Additionally, the influences of nutritional supplements and dietary components have been known to affect healing after periodontal surgery. Studies have attempted to find a correlation between tooth loss, periodontal health, and nutrition. Moreover, bone formation and periodontal regeneration are also affected by numerous vitamins, minerals, and trace elements. The aim of this review is to critically appraise the currently available data on diet and maintenance of periodontal health and periodontal healing. The effects of nutritional intervention studies to improve the quality of life and well-being of patients with periodontal disease have been discussed.
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Affiliation(s)
- Shariq Najeeb
- Restorative Dental Sciences, Al-Farabi College, Riyadh 361724, Saudi Arabia.
| | - Muhammad Sohail Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah 41311, Saudi Arabia.
| | - Zohaib Khurshid
- College of Dentistry, King Faisal University, P.O. Box 380, Al-Hofuf, Al-Ahsa 31982, Saudi Arabia.
| | - Sana Zohaib
- Department of Biomedical Engineering, School of Engineering, King Faisal University, P.O. Box 380, Al-Hofuf, Al-Ahsa 31982, Saudi Arabia.
| | - Khalid Almas
- Division of Periodontology, University of Dammam, College of Dentistry, Dammam 31441, Saudi Arabia.
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Park MH, Park E, Kim HJ, Na HS, Chung J. Porphyromonas gingivalis-induced miR-132 regulates TNFα expression in THP-1 derived macrophages. SPRINGERPLUS 2016; 5:761. [PMID: 27386246 PMCID: PMC4912528 DOI: 10.1186/s40064-016-2363-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 05/18/2016] [Indexed: 01/07/2023]
Abstract
Background Periodontitis is a chronic inflammatory disease induced by periodontopathogens such as Porphyromonas gingivalis (P. gingivalis). MicroRNAs (miRNAs) are small single-stranded noncoding RNAs that regulate gene expression at the level of translation. MiRNAs have been reported to be involved in inflammatory processes. In this study, we examined the effects of P. gingivalis-induced inflammatory miRNAs expression on TNFα production in THP-1 derived macrophages. Results Porphyromonas gingivalis induced the expression of miR-132. P. gingivalis-induced miR-132 expression was significantly inhibited by TLR2/4 knock-down and NF-κB inhibitor. Additionally, miR-132 antagomir strongly repressed production of TNFα. The expression of NFE2L2 and NFAT5, the putative target genes of miR-132 involved in regulation of TNFα, decreased in response to P. gingivalis. Furthermore, miR-132 antagomir rescued P. gingivalis-induced suppression of NFE2L2 and NFAT5. Conclusions These results suggest that the induction of miR-132 by P. gingivalis can modulate the pathogenesis of periodontitis induced via regulatory expression of TNFα.
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Affiliation(s)
- Mi Hee Park
- Department of Oral Microbiology, School of Dentistry, Pusan National University, Yangsan-si, Gyeongsangnam-do 626-870 South Korea
| | - Eunjoo Park
- Department of Oral Microbiology, School of Dentistry, Pusan National University, Yangsan-si, Gyeongsangnam-do 626-870 South Korea
| | - Hyung-Joon Kim
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan-si, 626-870 South Korea
| | - Hee Sam Na
- Department of Oral Microbiology, School of Dentistry, Pusan National University, Yangsan-si, Gyeongsangnam-do 626-870 South Korea
| | - Jin Chung
- Department of Oral Microbiology, School of Dentistry, Pusan National University, Yangsan-si, Gyeongsangnam-do 626-870 South Korea
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Matsubara VH, Bandara HMHN, Ishikawa KH, Mayer MPA, Samaranayake LP. The role of probiotic bacteria in managing periodontal disease: a systematic review. Expert Rev Anti Infect Ther 2016; 14:643-55. [PMID: 27224284 DOI: 10.1080/14787210.2016.1194198] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
INTRODUCTION The frequent recolonization of treated sites by periodontopathogens and the emergence of antibiotic resistance have led to a call for new therapeutic approaches for managing periodontal diseases. As probiotics are considered a new tool for combating infectious diseases, we systematically reviewed the evidences for their effectiveness in the management of periodontitis. AREAS COVERED An electronic search was performed in the MEDLINE, SCOPUS and Cochrane Library databases up to March 2016 using the terms 'periodontitis', 'chronic periodontitis', 'probiotic(s)', 'prebiotic(s)', 'symbiotic(s)', 'Bifidobacterium and 'Lactobacillus'. Only randomized controlled trials (RCTs) were included in the present study. Analysis of 12 RCTs revealed that in general, oral administration of probiotics improved the recognized clinical signs of chronic and aggressive periodontitis such as probing pocket depth, bleeding on probing, and attachment loss, with a concomitant reduction in the levels of major periodontal pathogens. Continuous probiotic administration, laced mainly with Lactobacillus species, was necessary to maintain these benefits. Expert commentary: Oral administration of probiotics is a safe and effective adjunct to conventional mechanical treatment (scaling) in the management of periodontitis, specially the chronic disease entity. Their adjunctive use is likely to improve disease indices and reduce the need for antibiotics.
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Affiliation(s)
- Victor Haruo Matsubara
- a School of Dentistry , The University of Queensland, (UQ Oral Health Centre) , Brisbane , Australia.,b Department of Microbiology, Institute of Biomedical Sciences , University of São Paulo , São Paulo , Brazil.,c School of Dentistry , University of São Paulo , São Paulo , Brazil
| | - H M H N Bandara
- a School of Dentistry , The University of Queensland, (UQ Oral Health Centre) , Brisbane , Australia
| | - Karin Hitomi Ishikawa
- b Department of Microbiology, Institute of Biomedical Sciences , University of São Paulo , São Paulo , Brazil
| | - Marcia Pinto Alves Mayer
- b Department of Microbiology, Institute of Biomedical Sciences , University of São Paulo , São Paulo , Brazil
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Kim S, Park MH, Song YR, Na HS, Chung J. Aggregatibacteractinomycetemcomitans-Induced AIM2 Inflammasome Activation Is Suppressed by Xylitol in Differentiated THP-1 Macrophages. J Periodontol 2016; 87:e116-26. [DOI: 10.1902/jop.2016.150477] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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ABCA1 expression in macrophages of allogeneic hematopoietic stem cell transplantation patients with severe infection undergoing continuous blood purification. Int J Artif Organs 2015; 38:83-8. [PMID: 25744199 DOI: 10.5301/ijao.5000388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2015] [Indexed: 11/20/2022]
Abstract
BACKGROUND Excessive activation of the inflammatory mediator cascade after allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients is associated with high mortality. Many studies have shown that continuous blood purification (CBP) could improve the prognosis of allo-HSCT patients with severe infection. However, the exact mechanism remains unclear. The aim of this study was to observe the effect of CBP on the expression of ATP-binding cassette transporter A1 (ABCA1) in macrophages, and to investigate the interventional effects of CBP on serum cytokine in allo-HSCT patients with severe infection. METHODS A total of 26 allo-HSCT patients with severe infection were included in this study. Before CBP and after CBP, blood samples were collected to observe hepatic and renal function, and the serum levels of TNF-α, IL-1, IL-6, and IL-10 were detected via ELISA. The THP-1 macrophages were exposed to serum samples obtained from patients at specific time points during CBP to test the changes of ABCA1 in macrophages by real-timePCR and Western blotting. RESULTS Serum creatinine, alanine aminotransferase, and C reaction protein (CRP) levels decreased significantly after CBP. Moreover, TNF-α, IL-1, and IL-6 serum levels decreased significantly, but IL-10 level increased significantly after CBP (P<.05). After CBP, ABCA1 expression levels were higher than those before CBP, and ABCA1 expression was significantly increased with the supplementation of CBP (P<.05). CONCLUSIONS CBP improved the condition of allo-HSCT patients with severe infection. CBP may be a potent up-regulator of the ABCA1 levels in macrophages of allo-HSCT patients with severe infection.
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Camargo D, Sene L, Variz DILS, Felipe MDGDA. Xylitol bioproduction in hemicellulosic hydrolysate obtained from sorghum forage biomass. Appl Biochem Biotechnol 2015; 175:3628-42. [PMID: 25672324 DOI: 10.1007/s12010-015-1531-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 01/27/2015] [Indexed: 01/02/2023]
Abstract
This study evaluated the biotechnological production of xylitol from sorghum forage biomass. The yeast Candida guilliermondii was cultivated in hemicellulosic hydrolysates obtained from biomass of three sorghum varieties (A, B, and C). First, the biomass was chemically characterized and subjected to dilute acid hydrolysis to obtain the hemicellulosic hydrolysates which were vacuum-concentrated and detoxified with activated charcoal. The hemicellulosic hydrolysates (initial pH 5.5) were supplemented with nutrients, and fermentations were conducted in 125-mL Erlenmeyer flasks containing 50 mL medium, under 200 rpm, at 30 °C for 96 h. Fermentations were evaluated by determining the parameters xylitol yield (Y P/S ) and productivity (QP), as well as the activities of the enzymes xylose reductase (XR) and xylitol dehydrogenase (XDH). There was no significant difference among the three varieties with respect to the contents of cellulose, hemicellulose, and lignin, although differences were found in the hydrolysate fermentability. Maximum xylitol yield and productivity values for variety A were 0.35 g/g and 0.16 g/L.h(-1), respectively. It was coincident with XR (0.25 U/mg prot) and XDH (0.17 U/mg prot) maximum activities. Lower values were obtained for varieties B and C, which were 0.25 and 0.17 g/g for yield and 0.12 and 0.063 g/L.h(-1) for productivity.
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Affiliation(s)
- Danielle Camargo
- Center of Exact and Technological Sciences, State University of West Paraná, Rua Universitária, 2069, Cascavel, PR, CEP 85819-110, Brazil,
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Park E, Park MH, Na HS, Chung J. Xylitol induces cell death in lung cancer A549 cells by autophagy. Biotechnol Lett 2015; 37:983-90. [PMID: 25650339 DOI: 10.1007/s10529-014-1757-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 12/18/2014] [Indexed: 12/30/2022]
Abstract
Xylitol is a widely used anti-caries agent that has anti-inflammatory effects. We have evaluated the potential of xylitol in cancer treatment. It's effects on cell proliferation and cytotoxicity were measured by MTT assay and LDH assay. Cell morphology and autophagy were examined by immunostaining and immunoblotting. Xylitol inhibited cell proliferation in a dose-dependent manner in these cancer cells: A549, Caki, NCI-H23, HCT-15, HL-60, K562, and SK MEL-2. The IC50 of xylitol in human gingival fibroblast cells was higher than in cancer cells, indicating that it is more specific for cancer cells. Moreover, xylitol induced autophagy in A549 cells that was inhibited by 3-methyladenine, an autophagy inhibitor. These results indicate that xylitol has potential in therapy against lung cancer by inhibiting cell proliferation and inducing autophagy of A549 cells.
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Affiliation(s)
- Eunjoo Park
- Department of Oral Microbiology, School of Dentistry, Pusan National University, Yangsan-si, 626-870, Gyeongsangnam-do, South Korea
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