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Liu C, Liu X, Xin H, Li X. Associations of inflammatory cytokines with palmoplantar pustulosis: a bidirectional Mendelian randomization study. Front Med (Lausanne) 2024; 11:1387210. [PMID: 38882664 PMCID: PMC11176421 DOI: 10.3389/fmed.2024.1387210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 05/07/2024] [Indexed: 06/18/2024] Open
Abstract
Background Variations in circulatory cytokine levels have been observed during the onset and course of palmoplantar pustulosis (PPP); however, whether these changes are due to etiological or secondary factors is unclear. To clarify the causal relationship, we conducted a summarized-level bidirectional Mendelian randomization (MR) analysis in this study. Methods A FinnGen biobank genome-wide association study (GWAS) of 212,766 individuals (524 PPP patients and 212,242 controls) provided summary data for PPP, whereas genetic instrumental variables (IVs) linked to circulation cytokine levels were gathered from a GWAS of 14,824 European individuals. The inverse-variance weighted (IVW), weighted median (WME), simple mode, and MR-Egger methods were used to ascertain the changes in PPP pathogenic cytokine taxa. Sensitivity analysis, which included horizontal pleiotropy analysis, was then conducted. The reliability of the results was assessed using the leave-one-out approach and the MR Steiger test, which evaluated the strength of a causal relationship. To evaluate the reverse causality between PPP and circulating cytokine levels, a reverse MR analysis was carried out. Results Our study demonstrated positive associations between C-X-C motif chemokine 6 (CXCL6) and PPP (odds ratio, OR 1.257, 95%CI: 1.001-1.570, p = 0.043). C-C motif chemokine 19 (CCL19) and interleukin-6 (IL-6) were suggested to be protectively associated with the development of PPP (OR: 0.698,95% CI: 0.516-0.944, p = 0.020; OR: 0.656, 95%CI:0.437-0.985, p = 0.042). The results were steady after sensitivity and heterogeneity analyses. Conclusion At the genetic prediction level, we identified causally connected inflammation-related variables that contributed to the onset and development of PPP. The therapeutic options for some refractory PPP have expanded due to tailored cytokine therapy, generating fresh concepts for PPP diagnostics and mechanism investigation.
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Affiliation(s)
- Chengling Liu
- Center of Burns and Plastic Surgery and Dermatology, The 924th Hospital of Joint Logistics Support Force of the PLA, Guilin, China
| | - Xingchen Liu
- Department of Pathology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Haiming Xin
- Center of Burns and Plastic Surgery and Dermatology, The 924th Hospital of Joint Logistics Support Force of the PLA, Guilin, China
| | - Xin Li
- Center of Burns and Plastic Surgery and Dermatology, The 924th Hospital of Joint Logistics Support Force of the PLA, Guilin, China
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Gao S, Lin M, Chen W, Chen X, Tian Z, Jia T, Xue Y, Song J, Lu Y, Zhou L, Wu L. Identification of potential diagnostic biomarkers associated with periodontitis by comprehensive bioinformatics analysis. Sci Rep 2024; 14:93. [PMID: 38168591 PMCID: PMC10761864 DOI: 10.1038/s41598-023-50410-y] [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: 08/29/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024] Open
Abstract
Periodontitis is a chronic inflammatory disease that affects the tissues surrounding the teeth, including the gums and the bones supporting the teeth. Early detection and intervention are crucial for effective management of periodontitis. Our study aims to identify a diagnostic biomarker for periodontitis and explore the pathways associated with the occurrence and development of periodontitis. The expression of gingival tissue from periodontitis and healthy control were downloaded from the Gene Expression Omnibus. The weighted gene co-expression network analysis (WGCNA) were used to analyze module genes associated with periodontitis and DESeq2 were performed to identify differently expressed genes (DEGs) between periodontitis and healthy control. Then the candidate genes were obtained by intersecting the genes from interest modules and DEGs. Functional enrichment analysis was performed using gene ontology and kyoto encyclopedia of gene and genomes, followed by the protein-protein interaction (PPI) network analysis. The hub genes were identified by the cytoCNA plugin in Cytoscape. Finally, immunohistochemical staining of the hub genes was performed to validate the findings. WGCNA analysis found that the expression of the MEblack module was significantly higher in individuals with periodontitis compared to those in the healthy control group. A total of 888 DEGs, including 750 upregulated and 138 downregulated genes, were identified. Finally, 427 candidate genes were identified potentially associated with periodontitis after intersecting the DEGs and the black module genes. Several critical signaling pathways were identified associated with periodontitis by functional enrichment analysis, including cytokine-cytokine receptor interaction, neutrophil extracellular trap formation, Staphylococcus aureus infection, and Interleukin-17 signaling pathway. The PPI network analysis revealed that C-X-C motif chemokine ligand 5 (CXCL5) and C-X-C motif chemokine ligand 6 (CXCL6) could play an important role in the process of periodontitis. The gene expression level of CXCL5 and CXCL6 detected using immunohistochemical verified the findings. In conclusion, we found that CXCL5 and CXCL6 are closely associated with the occurrence of periodontitis. Our present pilot study suggests that CXCL5 and CXCL6 have the potential to be used as a diagnostic biomarker of periodontitis.
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Affiliation(s)
- Sixue Gao
- Department of Periodontics, Shenyang Stomatological Hospital, Shenyang, China
- Dalian Medical University, Dalian, China
| | - Meina Lin
- NHC Key Laboratory of Reproductive Health and Medical Genetics (China Medical University) & Liaoning Key Laboratory of Reproductive Health, Liaoning Research Institute of Family Planning (The Affiliated Reproductive Hospital of China Medical University), Shenyang, China
| | - Wei Chen
- Department of Periodontics, Shenyang Stomatological Hospital, Shenyang, China
| | - Xinren Chen
- NHC Key Laboratory of Reproductive Health and Medical Genetics (China Medical University) & Liaoning Key Laboratory of Reproductive Health, Liaoning Research Institute of Family Planning (The Affiliated Reproductive Hospital of China Medical University), Shenyang, China
| | - Zhiying Tian
- NHC Key Laboratory of Reproductive Health and Medical Genetics (China Medical University) & Liaoning Key Laboratory of Reproductive Health, Liaoning Research Institute of Family Planning (The Affiliated Reproductive Hospital of China Medical University), Shenyang, China
| | - Tong Jia
- Department of Periodontics, Shenyang Stomatological Hospital, Shenyang, China
| | - Yang Xue
- Department of Periodontics, Shenyang Stomatological Hospital, Shenyang, China
| | - Jie Song
- Department of Periodontics, Shenyang Stomatological Hospital, Shenyang, China
| | - Yongping Lu
- NHC Key Laboratory of Reproductive Health and Medical Genetics (China Medical University) & Liaoning Key Laboratory of Reproductive Health, Liaoning Research Institute of Family Planning (The Affiliated Reproductive Hospital of China Medical University), Shenyang, China.
| | - Linxi Zhou
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200125, China.
| | - Liuzhong Wu
- Department of Periodontics, Shenyang Stomatological Hospital, Shenyang, China.
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Dai CL, Yang HX, Liu QP, Rahman K, Zhang H. CXCL6: A potential therapeutic target for inflammation and cancer. Clin Exp Med 2023; 23:4413-4427. [PMID: 37612429 DOI: 10.1007/s10238-023-01152-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 07/23/2023] [Indexed: 08/25/2023]
Abstract
Chemokines were originally defined as cytokines that affect the movement of immune cells. In recent years, due to the increasing importance of immune cells in the tumor microenvironment (TME), the role of chemokines has changed from a single "chemotactic agent" to a key factor that can regulate TME and affect the tumor phenotype. CXCL6, also known as granulocyte chemoattractant protein-2 (GCP-2), can recruit neutrophils to complete non-specific immunity in the process of inflammation. Cancer-related genes and interleukin family can promote the abnormal secretion of CXCL6, which promotes tumor growth, metastasis, epithelial mesenchymal transformation (EMT) and angiogenesis in the TME. CXCL6 also has a role in promoting fibrosis and tissue damage repair. In this review, we focus on the regulatory network affecting CXCL6 expression, its role in the progress of inflammation and how it affects tumorigenesis and progression based on the TME, in an attempt to provide a potential target for the treatment of diseases such as inflammation and cancer.
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Affiliation(s)
- Chun-Lan Dai
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hong-Xuan Yang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qiu-Ping Liu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Khalid Rahman
- School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Liverpool, UK
| | - Hong Zhang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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4
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Xu D, Jiang C, Xiao Y, Ding H. Identification and validation of disulfidptosis-related gene signatures and their subtype in diabetic nephropathy. Front Genet 2023; 14:1287613. [PMID: 38028597 PMCID: PMC10658004 DOI: 10.3389/fgene.2023.1287613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Background: Diabetic nephropathy (DN) is the most common complication of diabetes, and its pathogenesis is complex involving a variety of programmed cell death, inflammatory responses, and autophagy mechanisms. Disulfidptosis is a newly discovered mechanism of cell death. There are little studies about the role of disulfidptosis on DN. Methods: First, we obtained the data required for this study from the GeneCards database, the Nephroseq v5 database, and the GEO database. Through differential analysis, we obtained differential disulfidptosis-related genes. At the same time, through WGCNA analysis, we obtained key module genes in DN patients. The obtained intersecting genes were further screened by Lasso as well as SVM-RFE. By intersecting the results of the two, we ended up with a key gene for diabetic nephropathy. The diagnostic performance and expression of key genes were verified by the GSE30528, GSE30529, GSE96804, and Nephroseq v5 datasets. Using clinical information from the Nephroseq v5 database, we investigated the correlation between the expression of key genes and estimated glomerular filtration rate (eGFR) and serum creatinine content. Next, we constructed a nomogram and analyzed the immune microenvironment of patients with DN. The identification of subtypes facilitates individualized treatment of patients with DN. Results: We obtained 91 differential disulfidptosis-related genes. Through WGCNA analysis, we obtained 39 key module genes in DN patients. Taking the intersection of the two, we preliminarily screened 20 genes characteristic of DN. Through correlation analysis, we found that these 20 genes are positively correlated with each other. Further screening by Lasso and SVM-RFE algorithms and intersecting the results of the two, we identified CXCL6, CD48, C1QB, and COL6A3 as key genes in DN. Clinical correlation analysis found that the expression levels of key genes were closely related to eGFR. Immune cell infiltration is higher in samples from patients with DN than in normal samples. Conclusion: We identified and validated 4 DN key genes from disulfidptosis-related genes that CXCL6, CD48, C1QB, and COL6A3 may be key genes that promote the onset of DN and are closely related to the eGFR and immune cell infiltrated in the kidney tissue.
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Affiliation(s)
- Danping Xu
- School of Medicine, University of Electronic Science and Technology of China, Sichuan Provincial People’s Hospital, Chengdu, China
| | - Chonghao Jiang
- Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Yonggui Xiao
- North China University of Science and Technology, Tangshan, China
| | - Hanlu Ding
- Renal Division and Institute of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
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Lee HL, Tsai YC, Pikatan NW, Yeh CT, Yadav VK, Chen MY, Tsai JT. Tumor-Associated Macrophages Affect the Tumor Microenvironment and Radioresistance via the Upregulation of CXCL6/CXCR2 in Hepatocellular Carcinoma. Biomedicines 2023; 11:2081. [PMID: 37509721 PMCID: PMC10377183 DOI: 10.3390/biomedicines11072081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma is the sixth most diagnosed malignancy and the fourth most common cause of cancer-related mortality globally. Despite progress in the treatment of liver cancer, nonsurgical treatments remain unsatisfactory, and only 15% of early-stage cases are surgically operable. Radiotherapy (RT) is a non-surgical treatment option for liver cancer when other traditional treatment methods are ineffective. However, RT has certain limitations, including eliciting poor therapeutic effects in patients with advanced and recurrent tumors. Tumor-associated macrophages (TAMs) are major inflammatory cells in the tumor microenvironment that are key to tumor development, angiogenesis, invasion, and metastasis, and they play an essential role in RT responses. METHODS We used big data analysis to determine the potential of targeting CXCL6/CXCR2. We enrolled 50 patients with liver cancer who received RT at our hospital. Tumor tissue samples were examined for any relationship between CXCL6/CXCR2 activity and patient prognosis. Using a cell coculture system (Transwell), we cocultured Huh7 liver cancer cells and THP-1 monocytes with and without CXCL6/CXCR2 small interfering RNA for 72 h. RESULTS The overexpression of CXCL6/CXCR2 was highly correlated with mortality. Our tissue study indicated a positive correlation between CXCL6/CXCR2 and M2-TAMs subsets. The coculture study demonstrated that THP-1 monocytes can secrete CXCL6, which acts on the CXCR2 receptor on the surface of Huh7 cells and activates IFN-g/p38 MAPK/NF-κB signals to promote the epithelial-mesenchymal transition and radio-resistance. CONCLUSIONS Modulating the TAM/CXCL6/CXCR2 tumor immune signaling axis may be a new treatment strategy for the effective eradication of radiotherapy-resistant hepatocellular carcinoma cells.
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Affiliation(s)
- Hsin-Lun Lee
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 11031, Taiwan
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei 11031, Taiwan
| | - Yi-Chieh Tsai
- Department of Radiation Oncology, Cancer Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
| | - Narpati Wesa Pikatan
- Division of Urology, Department of Surgery, Faculty of Medicine, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Chi-Tai Yeh
- Department of Medical Research and Education, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
- Continuing Education Program of Food Biotechnology Applications, College of Science and Engineering, National Taitung University, Taitung 95092, Taiwan
| | - Vijesh Kumar Yadav
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
| | - Ming-Yao Chen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
| | - Jo-Ting Tsai
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Department of Radiation Oncology, Cancer Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
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Acevedo Rua L, Mumme M, Manferdini C, Darwiche S, Khalil A, Hilpert M, Buchner DA, Lisignoli G, Occhetta P, von Rechenberg B, Haug M, Schaefer DJ, Jakob M, Caplan A, Martin I, Barbero A, Pelttari K. Engineered nasal cartilage for the repair of osteoarthritic knee cartilage defects. Sci Transl Med 2021; 13:eaaz4499. [PMID: 34516821 DOI: 10.1126/scitranslmed.aaz4499] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Lina Acevedo Rua
- Department of Biomedicine, University Hospital Basel, University of Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - Marcus Mumme
- Department of Biomedicine, University Hospital Basel, University of Basel, Hebelstrasse 20, 4031 Basel, Switzerland.,Department of Surgery, University Hospital Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - Cristina Manferdini
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Via di Barbiano 1/10, 40136 Bologna, Italy
| | - Salim Darwiche
- Musculoskeletal Research Unit MSRU, Equine Department, University of Zurich, 8057 Zürich, Switzerland
| | - Ahmad Khalil
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44106 , USA
| | - Morgane Hilpert
- Department of Biomedicine, University Hospital Basel, University of Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - David A Buchner
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44106 , USA
| | - Gina Lisignoli
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Via di Barbiano 1/10, 40136 Bologna, Italy
| | - Paola Occhetta
- Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milan, Italy
| | - Brigitte von Rechenberg
- Competence Center for Applied Biotechnology and Molecular Medicine CABMM, University of Zurich, 8057 Zürich, Switzerland
| | - Martin Haug
- Department of Surgery, University Hospital Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - Dirk J Schaefer
- Department of Surgery, University Hospital Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - Marcel Jakob
- Department of Surgery, University Hospital Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - Arnold Caplan
- Department of Biology, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Ivan Martin
- Department of Biomedicine, University Hospital Basel, University of Basel, Hebelstrasse 20, 4031 Basel, Switzerland.,Department of Biomedical Engineering, University of Basel, Gewerbestrasse 14-16, 4123 Allschwil, Switzerland Switzerland
| | - Andrea Barbero
- Department of Biomedicine, University Hospital Basel, University of Basel, Hebelstrasse 20, 4031 Basel, Switzerland
| | - Karoliina Pelttari
- Department of Biomedicine, University Hospital Basel, University of Basel, Hebelstrasse 20, 4031 Basel, Switzerland
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Bamashmous S, Kotsakis GA, Jain S, Chang AM, McLean JS, Darveau RP. Clinically Healthy Human Gingival Tissues Show Significant Inter-individual Variability in GCF Chemokine Expression and Subgingival Plaque Microbial Composition. FRONTIERS IN ORAL HEALTH 2021; 2:689475. [PMID: 35048035 PMCID: PMC8757716 DOI: 10.3389/froh.2021.689475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/31/2021] [Indexed: 01/02/2023] Open
Abstract
Aim: Clinically healthy gingival tissue is maintained through controlled regulation of host defense mechanisms against plaque biofilm overgrowth. One key component is the transit of neutrophils from the vasculature into gingival tissue where the expression of different neutrophil chemokines are tightly regulated. This cross-sectional study examines the inter-individual variability in chemokine profiles within gingival crevicular fluid (GCF) in relation to the subgingival bacterial community in a state of gingival health. Methods: Gingival crevicular fluid and subgingival plaque samples were collected from mesiobuccal surfaces of all six Ramfjord teeth of 20 systemically healthy individuals (14.55 ± 1.67 years). A multiplex immunoassay was carried out to quantify the expression of 40 different chemokines in the healthy gingival tissue. Neutrophils were assessed indirectly by myeloperoxidase (MPO) in GCF using traditional ELISA. Characterization of healthy subgingival plaque was conducted with the Illumina Miseq targeting the 16S rRNA gene. Results: In health, there are distinct variations within individual gingival crevicular fluid chemokine expression profiles, as well as in the concentration of neutrophils, that divided the participants into high or low chemokine expressing groups. Specifically, key differences were identified within MIF (2683.54 ± 985.82 pg per 30-s sample), IL-8/CXCL8 (170.98 ± 176.96 pg per 30-s sample), Gro-α/CXCL1 (160.42 ± 94.21 pg per 30-s sample), ENA-78/CXCL5 (137.76 ± 76.02 pg per 30-s sample), IL-1β (51.39 ± 37.23 pg per 30-s sample), TNF-α (1.76 ± 1.79 pg per 30-s sample), and IFN-γ (0.92 ± 0.54 pg per 30-s sample). Of these identified chemokines, the highest correlation was associated between IL-8/CXCL8 and neutrophils (r = 0.54, p = 0.014). Furthermore, species characterization of healthy subgingival plaque revealed significant inter-individual variability that identified two unique groups unrelated to the previously identified chemokine groups. Conclusion: The lack of concordance between the microbial composition and chemokine profile during health may be a reflection of the unique microbial composition of each individual coupled with variations within their host response, emphasizing the vast complexity of the defense mechanisms in place to maintain gingival health.
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Affiliation(s)
- Shatha Bamashmous
- Department of Periodontics, University of Washington, Seattle, WA, United States
- Department of Oral Health Sciences, University of Washington, Seattle, WA, United States
- Department of Periodontology, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Georgios A. Kotsakis
- Department of Periodontics, University of Texas Health Science Center, San Antonio, TX, United States
| | - Sumita Jain
- Department of Periodontics, University of Washington, Seattle, WA, United States
| | - Ana M. Chang
- Department of Periodontics, University of Washington, Seattle, WA, United States
- Department of Oral Health Sciences, University of Washington, Seattle, WA, United States
| | - Jeffrey S. McLean
- Department of Periodontics, University of Washington, Seattle, WA, United States
- Department of Oral Health Sciences, University of Washington, Seattle, WA, United States
- Department of Microbiology, University of Washington, Seattle, WA, United States
| | - Richard P. Darveau
- Department of Periodontics, University of Washington, Seattle, WA, United States
- Department of Oral Health Sciences, University of Washington, Seattle, WA, United States
- Department of Microbiology, University of Washington, Seattle, WA, United States
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8
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Plemmenos G, Evangeliou E, Polizogopoulos N, Chalazias A, Deligianni M, Piperi C. Central Regulatory Role of Cytokines in Periodontitis and Targeting Options. Curr Med Chem 2021; 28:3032-3058. [PMID: 32838709 DOI: 10.2174/0929867327666200824112732] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Periodontitis is an immune-inflammatory disease that leads to the progressive destruction of bone and connective tissue in the periodontal area. The cytokine network plays a primary role in tissue homeostasis, the recruitment of immune cells to control the pathogenic impact and the regulation of osteoclastic function, thus modulating the intensity and duration of the immune response. This review provides an update on the main cytokines implicated in the pathogenesis and progression of periodontitis and their targeting potential in order to enrich current treatment options. METHODS A structured search of bibliographic databases (PubMed, MEDLINE, Scopus) was performed for peer-reviewed cytokine studies focused on periodontitis the last ten years. A qualitative content analysis was performed in screened papers and a critical discussion of main findings is provided. RESULTS An altered cytokine profile has been detected in periodontitis patients and the interplay of pro-inflammatory and/or anti-inflammatory cytokines has been associated with disease pathogenesis. Among the most prominent pro-inflammatory cytokines, TNF-α, IL-1β, IL-17, IL-6 and the chemokines CXCL-6, CXCL-8 are overexpressed in periodontitis patients and correlate with disease progression. On the other hand, the anti-inflammatory IL-4 and IL- 11 levels are reduced while IL-12 and IFN-γ expression play a dual role in periodontal disease. Current periodontitis treatment strategies include selective antibiotics, antimicrobial photodynamic therapy and probiotics, which can modulate the cytokine network and when applied in combination with specific anti-cytokine agents can exert additional beneficial effects. CONCLUSION It is evident that cytokines play a central regulatory role in the inflammatory process and immune cell response that underlies bone destruction in periodontitis. Specific cytokine targeting should be considered as a complementary therapeutic scheme to current periodontal management.
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Affiliation(s)
- Grigorios Plemmenos
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
| | - Evangelos Evangeliou
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
| | - Nikolaos Polizogopoulos
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
| | - Andreas Chalazias
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
| | - Marianthi Deligianni
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
| | - Christina Piperi
- School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, Goudi, 115 27 Athens, Greece
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9
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Nam OH, Lee HS, Kim JH, Chae YK, Hong SJ, Kang SW, Lee HS, Choi SC, Kim Y. Differential Gene Expression Changes in Human Primary Dental Pulp Cells Treated with Biodentine and TheraCal LC Compared to MTA. Biomedicines 2020; 8:biomedicines8110445. [PMID: 33105546 PMCID: PMC7690278 DOI: 10.3390/biomedicines8110445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/16/2020] [Accepted: 10/20/2020] [Indexed: 12/14/2022] Open
Abstract
This study aimed to analyze the effects of pulp capping materials on gene expression changes in primary tooth-derived dental pulp cells using next-generation sequencing. Dental pulp cells were extracted and treated with mineral trioxide aggregate (MTA), Biodentine (BD), or TheraCal LC (TC). Cell viability assays were performed. Total RNA was extracted and analyzed through mRNA sequencing. Bioinformatic analysis of differential gene expression in dental pulp cells exposed to BD or TC versus MTA was performed. MTA, BD, and TC exposure had no significant effect on pulp cell viability (p > 0.05). Gene sets associated with inflammatory response (p = 2.94 × 10−5) and tumor necrosis factor alpha (TNF-α) signaling via the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathway (p = 2.94 × 10−5) were enriched in all materials. In BD-treated cells, Wnt/β-catenin signaling (p = 3.15 × 10−4) gene sets were enriched, whereas enrichment of interferon gamma (IFN-γ) response (p = 3 × 10−3) was observed in TC-treated cells. In gene plot analysis, marked increases in receptor activator of nuclear factor kappa-Β ligand (RANKL) expression were seen in TC-treated cells over time. Despite the similar cell viabilities exhibited among MTA-, BD-, and TC-treated cells, patterns of gene networks differed, suggesting that diverse functional gene differences may be associated with treatment using these materials.
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Affiliation(s)
- Ok Hyung Nam
- Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Ho Sun Lee
- Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Jae-Hwan Kim
- Department of Pediatric Dentistry, School of Dentistry, Jeonbuk National University, Jeonju 54896, Korea
| | - Yong Kwon Chae
- Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Seoung-Jin Hong
- Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Sang Wook Kang
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Hyo-Seol Lee
- Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Sung Chul Choi
- Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Young Kim
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju 61186, Korea
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10
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A therapeutic oxygen carrier isolated from Arenicola marina decreased P. gingivalis induced inflammation and tissue destruction. Sci Rep 2020; 10:14745. [PMID: 32901057 PMCID: PMC7479608 DOI: 10.1038/s41598-020-71593-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 08/17/2020] [Indexed: 12/17/2022] Open
Abstract
The control of inflammation and infection is crucial for periodontal wound healing and regeneration. M101, an oxygen carrier derived from Arenicola marina, was tested for its anti-inflammatory and anti-infectious potential based on its anti-oxidative and tissue oxygenation properties. In vitro, no cytotoxicity was observed in oral epithelial cells (EC) treated with M101. M101 (1 g/L) reduced significantly the gene expression of pro-inflammatory markers such as TNF-α, NF-κΒ and RANKL in P. gingivalis-LPS stimulated and P. gingivalis-infected EC. The proteome array revealed significant down-regulation of pro-inflammatory cytokines (IL-1β and IL-8) and chemokine ligands (RANTES and IP-10), and upregulation of pro-healing mediators (PDGF-BB, TGF-β1, IL-10, IL-2, IL-4, IL-11 and IL-15) and, extracellular and immune modulators (TIMP-2, M-CSF and ICAM-1). M101 significantly increased the gene expression of Resolvin-E1 receptor. Furthermore, M101 treatment reduced P. gingivalis biofilm growth over glass surface, observed with live/dead analysis and by decreased P. gingivalis 16 s rRNA expression (51.7%) (p < 0.05). In mice, M101 reduced the clinical abscess size (50.2%) in P. gingivalis-induced calvarial lesion concomitant with a decreased inflammatory score evaluated through histomorphometric analysis, thus, improving soft tissue and bone healing response. Therefore, M101 may be a novel therapeutic agent that could be beneficial in the management of P. gingivalis associated diseases.
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11
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Wang SZ, Zhang YL, Shi HB. Potential Repressive Impact of microRNA-20a on Renal Tubular Damage in Diabetic Kidney Disease by Targeting C-X-C Motif Chemokine Ligand 6. Arch Med Res 2020; 52:58-68. [PMID: 32868134 DOI: 10.1016/j.arcmed.2020.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/25/2020] [Accepted: 08/18/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS C-X-C Motif Chemokine Ligand 6 (CXCL6) is an important chemokine. We attempt in this investigation to explore its role and possible mechanism in diabetic kidney disease (DKD). METHODS By intergrating GEO data, CXCL6 expression in DKD patients and normal controls was exhibited. miRWalk website and luciferase reporter assay were used to predict and verify the upstream miRNA of CXCL6. CCK-8 assay and flow cytometry were performed to detect proliferation and apoptosis capacities. The levels of inflammatory key factors (TNF-α, IL-6 and IL-8) were measured using ELISA analysis. Expression of CXCL6, miR-20a, and JAK/STAT3 pathway-related markers were detected by qRT-PCR or western blot assays. RESULTS CXCL6 was increased in DKD. miR-20a was identified as an upstream regulatory miRNA of CXCL6, and its expression was decreased in DKD and HG-treated HK-2 cells. miR-20a overexpression facilitated the proliferation of HG-treated HK-2 cells, whereas miR-20a depletion exhibited the opposite phenomenon. The levels of TNF-α, IL-6 and IL-8 were increased by HG treatment in HK-2 cells. CXCL6 antagonized the promoting impacts of miR-20a mimics on HG-exposed HK-2 cell proliferation. The suppressive effect of miR-20a overexpression on apoptosis and inflammatory response of HG-induced HK-2 cell was rescued by CXCL6 enhancement. The protein expression of p-JAK and p-STAT3 were reduced by miR-20a mimic while facilitated by CXCL6 overexpression in HG-stimulated HK-2 cells. CONCLUSION These consequences hinted that miR-20a might exert a repressive impact on DKD, possibly through targeting CXCL6 and mediating JAK/STAT3 pathway, which offer new targets for DKD treatment.
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Affiliation(s)
- Shu-Zhong Wang
- Department of Nephrology, Suizhou Central Hospital, Hubei University of Medicine, Suizhou, Hubei, P.R. China
| | - Ying-Li Zhang
- Department of Endocrinology, The First People's Hospital of Lanzhou City, Lanzhou, Gansu, P.R. China
| | - Hong-Bo Shi
- Department of Nephrology, Weifang People's Hospital, Weifang, Shandong, P.R. China.
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12
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Sun MY, Wang SJ, Li XQ, Shen YL, Lu JR, Tian XH, Rahman K, Zhang LJ, Nian H, Zhang H. CXCL6 Promotes Renal Interstitial Fibrosis in Diabetic Nephropathy by Activating JAK/STAT3 Signaling Pathway. Front Pharmacol 2019; 10:224. [PMID: 30967776 PMCID: PMC6442023 DOI: 10.3389/fphar.2019.00224] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 02/22/2019] [Indexed: 12/29/2022] Open
Abstract
In this study the role of CXCL6 in diabetic nephropathy (DN) was investigated. It was found to be overexpression in DN patients and DN rat model. And the expression of fibrosis-related cytokines was consistent with the expression of CXCL6. High glucose significantly increased the proliferation of rat renal fibroblasts NRK-49F cell and the expression of CXCL6. Knockdown of CXCL6 ameliorated the pro-proliferation effect of high glucose and decreased the expression of fibrosis-related cytokines, while CXCL6 overexpression exhibited the opposite phenomenon. Gene set enrichment analysis, Western blot and ELISA showed that Janus kinase-signal transducer and activator of transcription (JAK-STAT) and CYTOKINE_CYTOKINE_RECEPTOR_INTERACTION signaling pathways were correlative with CXCL6. This data indicates that CXCL6 may promote fibrosis-related factors to accelerate the development of DN renal interstitial fibrosis by activating JAK/STAT3 signaling pathway. CXCL6 is promising to be a potential novel therapeutic target and candidate biomarker for JAK/STAT3 signaling for the treatment of DN.
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Affiliation(s)
- Meng-Yao Sun
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Su-Juan Wang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Drug Preparation, Hospital of TCM and Hui Nationality Medicine, Ningxia Medical University, Wuzhong, China
| | - Xiao-Qin Li
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yu-Li Shen
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jian-Rao Lu
- Department of Nephrology, Seventh People's Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xin-Hui Tian
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Khalid Rahman
- School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Liverpool, United Kingdom
| | - Li-Jun Zhang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hua Nian
- Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hong Zhang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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13
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Li J, Wang R, Ge Y, Chen D, Wu B, Fang F. Assessment of microRNA-144-5p and its putative targets in inflamed gingiva from chronic periodontitis patients. J Periodontal Res 2018; 54:266-277. [PMID: 30450635 DOI: 10.1111/jre.12627] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 09/27/2018] [Accepted: 10/19/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVE This study aimed to discover the distinctive MicroRNAs (miRNA) functioning in the pathogenesis of periodontal inflammation, which might be potential therapy targets of chronic periodontitis. MATERIAL AND METHODS miRNA profiles of human inflamed gingival tissue from three previous microarrays were re-analysed. Gingival tissues were collected for the validation of overlapping miRNAs, and a network was constructed to show regulatory connection between overlapping miRNAs and periodontitis-associated target genes. Potential miRNAs were screened based on their expression levels and predicted target genes. Correlation analysis and binding site prediction were conducted to reveal the relationship between the potential miRNAs and their target genes. RESULTS miR-144-5p, found to be upregulated in all three studies, showed the greatest upregulation (P < 0.0001). Another 16 miRNAs (10 upregulated and six downregulated) overlapped between any two of the three studies. All overlapping miRNAs had expected expression levels except for miR-203 during validation. Ten miRNAs (six upregulated and four downregulated) were found to have periodontal inflammation-associated targets. Cyclooxygenase 2 (COX2) and interleukin-17F (IL17F), predicted target genes of upregulated miR-144-5p, showed significant decreases and were negatively correlated with miR-144-5p in the periodontitis group (r = -0.742 for COX2, r = -0.615 for IL17F). CONCLUSION This re-analysis of miRNA signatures has implied the potential regulatory mechanism of miR-144-5p and its potential for exploring alternative therapeutic approaches, especially those that use miRNA delivery systems to treat chronic periodontitis. Nevertheless, further study based on larger sample size and homogenous cells is needed to reveal the exact roles of miRNAs in chronic periodontitis.
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Affiliation(s)
- Jianjia Li
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Runting Wang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yihong Ge
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Danhong Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Buling Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Fuchun Fang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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14
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Brophy RH, Sandell LJ, Rai MF. Traumatic and Degenerative Meniscus Tears Have Different Gene Expression Signatures. Am J Sports Med 2017; 45:114-120. [PMID: 27604189 PMCID: PMC5969913 DOI: 10.1177/0363546516664889] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Meniscus tears are classified as traumatic or degenerative based on the tear pattern. There is little evidence demonstrating biological differences between the 2 tear types. HYPOTHESIS Gene expression signatures in the injured meniscus are different between traumatic (vertical) and degenerative (complex, horizontal, or flap) tears. STUDY DESIGN Controlled laboratory study. METHODS Samples of the torn meniscus from the white-white zone were removed at the time of clinically indicated partial meniscectomy from 48 patients (37 with degenerative tears and 11 with traumatic tears). mRNA expression in the injured menisci was measured by quantitative real-time polymerase chain reaction for selected molecular markers of osteoarthritis, inflammation, and cartilage homeostasis (eg, cytokines/chemokines, aggrecanases/metalloproteinases, transcription factors, cartilage matrix genes, and adipokines). The tear pattern (traumatic or degenerative) and location (medial or lateral) were recorded for each patient. Gene expression differences between degenerative and traumatic tears were computed after adjusting for patients' age, sex, and body mass index and for location of the resected meniscus (medial/lateral). RESULTS Gene expression in meniscus tears varied by pattern. Chemokines ( IL8 [ P < .001] and CXCL6 [ P < .001]) and matrix metalloproteinases ( MMP1 [ P = .011] and MMP3 [ P = .016]) were expressed at a significantly higher level in traumatic tears compared with degenerative tears. In contrast, COL1A1 was expressed at a lower level in traumatic tears compared with degenerative tears ( P = .058). None of the genes tested demonstrated significant differences between medial and lateral meniscus tears. CONCLUSION Traumatic meniscus tears overall exhibited a higher inflammatory/catabolic response as evidenced by higher levels of chemokine and matrix metalloproteinase expression than degenerative tears. These findings suggest that there is a (molecular) biological distinction between traumatic and degenerative tears. CLINICAL RELEVANCE The catabolic/inflammatory differences between traumatic and degenerative tears may be relevant to treatment decisions regarding the meniscus as well as advance our understanding of how meniscus tears relate to the development of knee osteoarthritis.
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Affiliation(s)
- Robert H. Brophy
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, United States,Corresponding author: Department of Orthopaedic Surgery, Washington University School of Medicine, 14532, South Outer Forty Drive, Chesterfield, MO 63017, USA, , Tel: 314-514-3564; Fax: 314-514-3689
| | - Linda J. Sandell
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, United States,Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, United States
| | - M. Farooq Rai
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, United States
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15
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MicroRNAs Regulate Cytokine Responses in Gingival Epithelial Cells. Infect Immun 2016; 84:3282-3289. [PMID: 27600506 DOI: 10.1128/iai.00263-16] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 08/30/2016] [Indexed: 12/28/2022] Open
Abstract
MicroRNAs (miRNAs) have been established as key regulators of various biological processes with possible involvement in the pathobiology of periodontal disease. Expanding our earlier observations of substantial differential expression of specific miRNAs between clinically healthy and periodontitis-affected gingival tissues, we used miRNA inhibitors (sponges) in loss-of-function experiments to investigate the involvement of specific miRNAs in the response of pocket epithelium-derived, telomerase-immortalized human gingival keratinocytes (TIGKs) to microbial infection. We constructed stable knockdown (KD) cell lines for five epithelium-expressed miRNAs (miR-126, miR-141, miR-155, miR-210, and miR-1246) and assessed their response to infection with periodontal pathogens using microarray analysis, quantitative PCR (qPCR), enzyme-linked immunosorbent assay (ELISA), and Western blot assay. miR-126 KD cells showed lower expression of interleukin 8 (IL-8) and CXCL1, both on the mRNA and protein levels, than did controls upon stimulation by heat-killed wild-type Porphyromonas gingivalis, live P. gingivalis protease-deficient mutant KDP128, and live Aggregatibacter actinomycetemcomitans In contrast, infection of miR-155 KD and miR-210 KD cells with the same organisms resulted in higher IL-8 and CXCL1 mRNA and protein expression. These effects appeared to be regulated by NF-κB, as suggested by altered transcription and/or phosphorylation status of components of the NF-κB system. Reduced neutrophil-like HL-60 cell chemotactic activity was observed in response to infection of miR-126 KD cells, indicating that miR-126 plays an important role in immune responses. Our findings indicate that specific miRNAs regulate the expression of inflammatory cytokines in human gingival epithelial cells in response to microbial infection.
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16
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Kebschull M, Papapanou PN. Mini but mighty: microRNAs in the pathobiology of periodontal disease. Periodontol 2000 2015; 69:201-20. [PMID: 26252410 PMCID: PMC4530521 DOI: 10.1111/prd.12095] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/03/2015] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) are a family of small, noncoding RNA molecules that negatively regulate protein expression either by inhibiting initiation of the translation of mRNA or by inducing the degradation of mRNA molecules. Accumulating evidence suggests that miRNA-mediated repression of protein expression is of paramount importance in a broad range of physiologic and pathologic conditions. In particular, miRNA-induced dysregulation of molecular processes involved in inflammatory pathways has been shown to contribute to the development of chronic inflammatory diseases. In this review, first of all we provide an overview of miRNA biogenesis, the main mechanisms of action and the miRNA profiling tools currently available. Then, we summarize the available evidence supporting a specific role for miRNAs in the pathobiology of periodontitis. Based on a review of available data on the differential expression of miRNAs in gingival tissues in states of periodontal health and disease, we address specific roles for miRNAs in molecular and cellular pathways causally linked to periodontitis. Our review points to several lines of evidence suggesting the involvement of miRNAs in periodontal tissue homeostasis and pathology. Although the intricate regulatory networks affected by miRNA function are still incompletely mapped, further utilization of systems biology tools is expected to enhance our understanding of the pathobiology of periodontitis.
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Affiliation(s)
- Moritz Kebschull
- Associate Professor of Dental Medicine, Consultant, Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Welschnonnenstr. 17, 53111 Bonn, Germany, Tel: +49-228-28722-007,
| | - Panos N. Papapanou
- Professor of Dental Medicine, Director, Division of Periodontics, Chair, Section of Oral and Diagnostic Sciences, Columbia University College of Dental Medicine, 630 West 168 Street, PH-7E-110, New York, NY 10032, USA, Tel: +1-212-342-3008, Fax: +1-212-305-9313,
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17
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Dommisch H, Staufenbiel I, Schulze K, Stiesch M, Winkel A, Fimmers R, Dommisch J, Jepsen S, Miosge N, Adam K, Eberhard J. Expression of antimicrobial peptides and interleukin-8 during early stages of inflammation: An experimental gingivitis study. J Periodontal Res 2015; 50:836-45. [DOI: 10.1111/jre.12271] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2015] [Indexed: 11/28/2022]
Affiliation(s)
- H. Dommisch
- Department of Periodontology and Synoptic Dentistry; Charité - University Medicine Berlin; Berlin Germany
- Department of Oral Health Sciences; Health Science Center; University of Washington; Seattle WA USA
- Department of Periodontology, Operative and Preventive Dentistry; University Hospital Bonn; Bonn Germany
| | - I. Staufenbiel
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry; Hannover Medical School; Hannover Germany
| | - K. Schulze
- Clinic for Dental Prosthetics and Biomedical Materials Science; Hannover Medical School; Hannover Germany
| | - M. Stiesch
- Clinic for Dental Prosthetics and Biomedical Materials Science; Hannover Medical School; Hannover Germany
| | - A. Winkel
- Clinic for Dental Prosthetics and Biomedical Materials Science; Hannover Medical School; Hannover Germany
| | - R. Fimmers
- Institute of Medical Biometry; Informatics and Epidemiology; University of Bonn; Bonn Germany
| | - J. Dommisch
- Department of Periodontology, Operative and Preventive Dentistry; University Hospital Bonn; Bonn Germany
| | - S. Jepsen
- Department of Periodontology, Operative and Preventive Dentistry; University Hospital Bonn; Bonn Germany
| | - N. Miosge
- Research Group for Oral Biology and Tissue Regeneration; Department of Prosthetic Dentistry; University Hospital Göttingen; Göttingen Germany
| | - K. Adam
- Clinic for Dental Prosthetics and Biomedical Materials Science; Hannover Medical School; Hannover Germany
| | - J. Eberhard
- Clinic for Dental Prosthetics and Biomedical Materials Science; Hannover Medical School; Hannover Germany
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18
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Beklen A, Sarp AS, Uckan D, Tsaous Memet G. The function of TLR4 in interferon gamma or interleukin-13 exposed and lipopolysaccharide stimulated gingival epithelial cell cultures. Biotech Histochem 2014; 89:505-12. [PMID: 24773607 DOI: 10.3109/10520295.2014.903299] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Gingival epithelial cells are part of the first line of host defense against infection. Toll-like receptors (TLRs) serve important immune and nonimmune functions. We investigated how interferon gamma (INF-γ) and interleukin 13 (IL-13) are involved in the TLR4 ligand-induced regulation of interleukin-8 (IL-8) effects on gingival epithelial cells. We used immunohistochemistry to localize TLR4 in ten healthy and ten periodontitis tissue specimens. Gingival epithelial cells then were primed with Th1 cytokine (INF-γ) or Th2 cytokine (IL-13) before stimulation with Escherichia coli-derived lipopolysaccharide (LPS) and enzyme-linked immunosorbent assay (ELISA) was performed to detect the level of IL-8 secretion in cell culture supernatants. Although both healthy and periodontitis gingival tissue samples expressed TLR4, the periodontitis samples showed more intense expression on gingival epithelial cells. Gingival epithelial cell cultures were primed with either INF-γ or IL-13 before stimulation with TLR4 ligand. Supernatants from co-stimulated epithelial cells exhibited IL-8 production in opposite directions, i.e., as one stimulates the release, the other reduces the release. INF-γ significantly increased TLR4 function, whereas IL-13 significantly decreased TLR4 function, i.e., production of IL-8. Pathogen associated molecular pattern-LPS, shared by many different periodonto-pathogenic bacteria, activates the gingival epithelial cells in a TLR-dependent manner. Diminished or increased TLR function in gingival epithelial cells under the influence of different Th cell types may protect or be harmful due to the altered TLR signaling.
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Affiliation(s)
- A Beklen
- Department of Periodontology, Faculty of Dentistry, Eskisehir Osmangazi University , Eskisehir
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19
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Koss MA, Castro CE, Carino S, López ME. Histopathologic and histomorphometric studies and determination of IL-8 in patients with periodontal disease. J Indian Soc Periodontol 2014; 18:145-9. [PMID: 24872619 PMCID: PMC4033877 DOI: 10.4103/0972-124x.131307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 10/11/2013] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Periodontitis is an inflammatory disease characterized by connective tissue breakdown and alveolar bone resorption. OBJECTIVE The aim of this study was to make a quantitative evaluation of the gingival tissue components in biopsies from patients with different clinical states of periodontal disease and to determine the relationship between the presence of interleukin-8 and the tissue destruction. MATERIALS AND METHODS The study group consisted of 33 biopsies from adult subjects. A total of 25 periodontal patients were sub-classified on the basis of the clinical and radiographic criteria in mild, moderate and advanced periodontitis. Gingival samples were obtained from patients in the course of basic periodontal surgeries as a muco-periostic collate. Data were analyzed by the SPSS system. RESULTS Collagen fibres decreased as non-specific chronic states increased. A lymphocyte inflammatory infiltrate changed to a lymphoplasmocytary form. Reactivity to interleukin-8 was detected with the severity of the histopathologic diagnoses; however there was no association with the clinical diagnoses. CONCLUSIONS Histopathology and histomorphometry of gingival tissue changed with the degree of inflammation. No evidence of interleukin-8 as a biomarker for clinical diagnoses of periodontitis was obtained.
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Affiliation(s)
- Myriam A. Koss
- Department of Biochemistry, School of Dentistry, National University of Tucumán, Argentina
| | - Cecilia E. Castro
- Department of Periodontology, School of Dentistry, National University of Tucumán, Argentina
| | - Silvia Carino
- Department of Pathology, School of Dentistry, National University of Tucumán, Argentina
| | - Maria E. López
- Department of Biochemistry, School of Dentistry, National University of Tucumán, Argentina
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20
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Yu L, Su J, Zou D, Mariano Z. The concentrations of IL-8 and IL-6 in gingival crevicular fluid during nickel-chromium alloy porcelain crown restoration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1717-1722. [PMID: 23564008 DOI: 10.1007/s10856-013-4924-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 04/01/2013] [Indexed: 06/02/2023]
Abstract
We explored gum irritation and cytotoxicity caused by nickel-chromium (Ni-Cr) alloy porcelain by interleukin-8 (IL-8), interleukin-6 (IL-6) and gingival crevicular fluid (GCF) volumes at different time points peri-crown restoration. This prospective study was conducted in 60 young adults. The total amount and concentrations of IL-8 and IL-6 per site, GCF volumes, and blood neutrophil counts were performed prior to and at 1 week, 3 months, and 6 months after Ni-Cr alloy-porcelain crown restoration. Thirty male and 30 female subjects, aged 20-35 years old were enrolled. The total amount and concentrations of IL-8 and IL-6 per site, GCF volumes increased after nickel-chromium (Ni-Cr) alloy-porcelain crown restoration, and reached its peak at the third month as the GCF volume increased by 52.20 %, the total amount and concentrations of IL-8 increased by 112.11 and 22.75 %; the total amount and concentrations of IL-6 increased by 77.66 and 17.17 % when compared to baseline. In particular, the increase of IL-8 concentration was found in female patients at 3 months after restoration; while the neutrophil count of the peripheral blood did not change significantly. The increase in the total amount and the concentrations of IL-8 and IL-6 and GCF volume may be related to the cytotoxicity induced by Ni-Cr alloy. The significant increase of IL-8 concentration in females indicates that more attention should be given to women during Ni-Cr alloy porcelain crown restoration.
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Affiliation(s)
- Lufeng Yu
- Department of Stomatology, The Sixth Affiliated People's Hospital of Shanghai Jiaotong University, No. 600 Yi Shan Road, Shanghai, 200233, China.
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21
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McIntosh ML, Hajishengallis G. Inhibition of Porphyromonas gingivalis-induced periodontal bone loss by CXCR4 antagonist treatment. Mol Oral Microbiol 2012; 27:449-57. [PMID: 23134610 DOI: 10.1111/j.2041-1014.2012.00657.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Microbial pathogens have evolved mechanisms to proactively manipulate innate immunity, thereby improving their fitness in mammalian hosts. We have previously shown that Porphyromonas gingivalis exploits CXC-chemokine receptor-4 (CXCR4) to instigate a subversive crosstalk with Toll-like receptor 2 that inhibits leukocyte killing of this periodontal pathogen. However, whether CXCR4 plays a role in periodontal disease pathogenesis has not been previously addressed. Here, we hypothesized that CXCR4 is required for P. gingivalis virulence in the periodontium and that treatment with AMD3100, a potent CXCR4 antagonist, would inhibit P. gingivalis-induced periodontitis. Indeed, mice given AMD3100 via osmotic minipumps became resistant to induction of periodontal bone loss following oral inoculation with P. gingivalis. AMD3100 appeared to act in an antimicrobial manner, because mice treated with AMD3100 were protected against P. gingivalis colonization and the associated elevation of the total microbiota counts in the periodontal tissue. Moreover, even when administered 2 weeks after infection, AMD3100 halted the progression of P. gingivalis-induced periodontal bone loss. Therefore, AMD3100 can act in both preventive and therapeutic ways and CXCR4 antagonism could be a promising novel approach to treat human periodontitis.
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Affiliation(s)
- M L McIntosh
- Center for Oral Health and Systemic Disease, University of Louisville School of Dentistry, Louisville, KY, USA
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22
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Graunaite I, Lodiene G, Maciulskiene V. Pathogenesis of apical periodontitis: a literature review. J Oral Maxillofac Res 2012; 2:e1. [PMID: 24421998 PMCID: PMC3886078 DOI: 10.5037/jomr.2011.2401] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Accepted: 09/03/2011] [Indexed: 05/29/2023]
Abstract
OBJECTIVES This review article discusses the host response in apical periodontitis with the main focus on cytokines, produced under this pathological condition and contributing to the degradation of periradicular tissues. The pace of research in this field has greatly accelerated in the last decade. Here we provide an analysis of studies published in this area during this period. MATERIAL AND METHODS Literature was selected through a search of PubMed electronic database. The keywords used for search were pathogenesis of apical periodontitis cytokines, periapical granuloma cytokines, inflammatory infiltrate apical periodontitis. The search was restricted to English language articles, published from 1999 to December 2010. Additionally, a manual search in the cytokine production, cytokine functions and periapical tissue destruction in the journals and books was performed. RESULTS In total, 97 literature sources were obtained and reviewed. The topics covered in this article include cellular composition of an inflammatory infiltrate in the periapical lesions, mechanisms of the formation of the innate and specific immune response. Studies which investigated cytokine secretion and functions were identified and cellular and molecular interactions in the course of apical periodontitis described. CONCLUSIONS The abundance and interactions of various inflammatory and anti-inflammatory molecules can influence and alter the state and progression of the disease. Therefore, periapical inflammatory response offers a model, suited for the study of many facets of pathogenesis, biocompatibility of different materials to periapical tissues and development of novel treatment methods, based on the regulation of cytokines expression.
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Affiliation(s)
- Indre Graunaite
- Department of Dental and Oral Pathology, Faculty of Odontology, Lithuanian University of Health SciencesLithuania.
| | - Greta Lodiene
- Department of Dental and Oral Pathology, Faculty of Odontology, Lithuanian University of Health SciencesLithuania.
| | - Vita Maciulskiene
- Department of Dental and Oral Pathology, Faculty of Odontology, Lithuanian University of Health SciencesLithuania.
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Grant MM. What do 'omic technologies have to offer periodontal clinical practice in the future? J Periodontal Res 2011; 47:2-14. [PMID: 21679186 DOI: 10.1111/j.1600-0765.2011.01387.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Periodontal diseases are the most common chronic inflammatory diseases of humans and a major cause of tooth loss. Inflammatory periodontitis is also a complex multifactorial disease involving many cell types, cell products and interactions. It is associated with a dysregulated inflammatory response, which fails to resolve, and which also fails to re-establish a beneficial periodontal microbiota. There is a rich history of biomarker research within the field of periodontology, but exemplary improvements in analytical platform technologies offer exciting opportunities for discovery. These include the 'omic technologies, such as genomics, transcriptomics, proteomics and metabolomics, which provide information on global scales that can match the complexity of the disease. This narrative review focuses on the recent advances made in in vivo human periodontal research by use of 'omic technologies. MATERIAL AND METHODS The Medline database was searched to identify articles currently available on 'omic technologies with regard to periodontal research. RESULTS One hundred and sixty-one articles focusing on biomarkers of and 'omic advances in periodontal research were analysed for their contributions to the understanding of periodontal diseases. CONCLUSION The data generated by the use of 'omic technologies have huge potential to inform paradigm shifts in our understanding of periodontal diseases, but data management, analysis and interpretation require a thoughtful and systematic bioinformatics approach, to ensure meaningful conclusions can be made.
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Affiliation(s)
- M M Grant
- Periodontal Research Group, School of Dentistry, University of Birmingham, St Chad's Queensway, Birmingham, UK.
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Jönsson D, Ramberg P, Demmer RT, Kebschull M, Dahlén G, Papapanou PN. Gingival tissue transcriptomes in experimental gingivitis. J Clin Periodontol 2011; 38:599-611. [PMID: 21501207 DOI: 10.1111/j.1600-051x.2011.01719.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
AIMS We investigated the sequential gene expression in the gingiva during the induction and resolution of experimental gingivitis. MATERIAL AND METHODS Twenty periodontally and systemically healthy non-smoking volunteers participated in a 3-week experimental gingivitis protocol, followed by debridement and 2-week regular plaque control. We recorded clinical indices and harvested gingival tissue samples from four interproximal palatal sites in half of the participants at baseline, Day 7, Day 14 and Day 21 (the "induction phase"), and at Day 21, Day 25, Day 30 and Day 35 in the other half (the "resolution phase"). RNA was extracted, amplified, reversed transcribed, amplified, labelled and hybridized using Affymetrix Human Genome U133Plus2.0 microarrays. Paired t-tests compared gene expression changes between consecutive time points. Gene ontology analyses summarized the expression patterns into biologically relevant categories. RESULTS The median gingival index was 0 at baseline, 2 at Day 21 and 1 at Day 35. Differential gene regulation peaked during the third week of induction and the first 4 days of resolution. Leucocyte transmigration, cell adhesion and antigen processing/presentation were the top differentially regulated pathways. CONCLUSIONS Transcriptomic studies enhance our understanding of the pathobiology of the reversible inflammatory gingival lesion and provide a detailed account of the dynamic tissue responses during the induction and resolution of experimental gingivitis.
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Affiliation(s)
- Daniel Jönsson
- Division of Periodontics, Section of Oral and Diagnostic Sciences, College of Dental Medicine, Columbia University, New York, NY 10032, USA
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Hernández M, Gamonal J, Salo T, Tervahartiala T, Hukkanen M, Tjäderhane L, Sorsa T. Reduced expression of lipopolysaccharide-induced CXC chemokine in Porphyromonas gingivalis-induced experimental periodontitis in matrix metalloproteinase-8 null mice. J Periodontal Res 2011; 46:58-66. [DOI: 10.1111/j.1600-0765.2010.01310.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Papapanou PN, Behle JH, Kebschull M, Celenti R, Wolf DL, Handfield M, Pavlidis P, Demmer RT. Subgingival bacterial colonization profiles correlate with gingival tissue gene expression. BMC Microbiol 2009; 9:221. [PMID: 19835625 PMCID: PMC2771036 DOI: 10.1186/1471-2180-9-221] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2009] [Accepted: 10/18/2009] [Indexed: 02/14/2023] Open
Abstract
Background Periodontitis is a chronic inflammatory disease caused by the microbiota of the periodontal pocket. We investigated the association between subgingival bacterial profiles and gene expression patterns in gingival tissues of patients with periodontitis. A total of 120 patients undergoing periodontal surgery contributed with a minimum of two interproximal gingival papillae (range 2-4) from a maxillary posterior region. Prior to tissue harvesting, subgingival plaque samples were collected from the mesial and distal aspects of each tissue sample. Gingival tissue RNA was extracted, reverse-transcribed, labeled, and hybridized with whole-genome microarrays (310 in total). Plaque samples were analyzed using checkerboard DNA-DNA hybridizations with respect to 11 bacterial species. Random effects linear regression models considered bacterial levels as exposure and expression profiles as outcome variables. Gene Ontology analyses summarized the expression patterns into biologically relevant categories. Results Wide inter-species variation was noted in the number of differentially expressed gingival tissue genes according to subgingival bacterial levels: Using a Bonferroni correction (p < 9.15 × 10-7), 9,392 probe sets were differentially associated with levels of Tannerella forsythia, 8,537 with Porphyromonas gingivalis, 6,460 with Aggregatibacter actinomycetemcomitans, 506 with Eikenella corrodens and only 8 with Actinomyces naeslundii. Cluster analysis identified commonalities and differences among tissue gene expression patterns differentially regulated according to bacterial levels. Conclusion Our findings suggest that the microbial content of the periodontal pocket is a determinant of gene expression in the gingival tissues and provide new insights into the differential ability of periodontal species to elicit a local host response.
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Affiliation(s)
- Panos N Papapanou
- Division of Periodontics, Section of Oral and Diagnostic Sciences, College of Dental Medicine, Columbia University, New York, NY, USA.
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