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Huang JH, Chen Y, Kang YB, Yao ZJ, Song JH. The potential crosstalk genes and molecular mechanisms between glioblastoma and periodontitis. Sci Rep 2024; 14:5970. [PMID: 38472293 DOI: 10.1038/s41598-024-56577-2] [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: 07/14/2023] [Accepted: 03/08/2024] [Indexed: 03/14/2024] Open
Abstract
Despite clinical and epidemiological evidence suggestive of a link between glioblastoma (GBM) and periodontitis (PD), the shared mechanisms of gene regulation remain elusive. In this study, we identify differentially expressed genes (DEGs) that overlap between the GEO datasets GSE4290 [GBM] and GSE10334 [PD]. Functional enrichment analysis was conducted, and key modules were identified using protein-protein interaction (PPI) network and weighted gene co-expression network analysis (WGCNA). The expression levels of CXCR4, LY96, and C3 were found to be significantly elevated in both the test dataset and external validation dataset, making them key crosstalk genes. Additionally, immune cell landscape analysis revealed elevated expression levels of multiple immune cells in GBM and PD compared to controls, with the key crosstalk genes negatively associated with Macrophages M2. FLI1 was identified as a potential key transcription factor (TF) regulating the three key crosstalk genes, with increased expression in the full dataset. These findings contribute to our understanding of the immune and inflammatory aspects of the comorbidity mechanism between GBM and PD.
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Affiliation(s)
- Jian-Huang Huang
- Department of Neurosurgery, Affiliated Hospital of Putian University, Putian, Fujian, China.
| | - Yao Chen
- Department of Neurosurgery, Affiliated Hospital of Putian University, Putian, Fujian, China
| | - Yuan-Bao Kang
- Department of Neurosurgery, Affiliated Hospital of Putian University, Putian, Fujian, China
| | - Zheng-Jian Yao
- Department of Neurosurgery, Affiliated Hospital of Putian University, Putian, Fujian, China
| | - Jian-Hua Song
- Department of Neurosurgery, Affiliated Hospital of Putian University, Putian, Fujian, China
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Hernández Martínez CDJ, Felix Silva P, Salvador SL, Messora M, Palioto DB. Chronological analysis of periodontal bone loss in experimental periodontitis in mice. Clin Exp Dent Res 2023; 9:1009-1020. [PMID: 37997536 PMCID: PMC10728515 DOI: 10.1002/cre2.806] [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: 03/12/2023] [Revised: 10/04/2023] [Accepted: 10/12/2023] [Indexed: 11/25/2023] Open
Abstract
OBJECTIVES Periodontal disease is understood to be a result of dysbiotic interactions between the host and the biofilm, causing a unique reaction for each individual, which in turn characterizes their susceptibility. The objective of this study was to chronologically evaluate periodontal tissue destruction induced by systemic bacterial challenge in known susceptible (BALB/c) and resistant (C57BL/6) mouse lineages. MATERIAL AND METHODS Animals, 6-8 weeks old, were allocated into three experimental groups: Negative control (C), Gavage with sterile carboxymethyl cellulose 2%-without bacteria (Sham), and Gavage with carboxymethyl cellulose 2% + Porphyromonas gingivalis (Pg-W83). Before infection, all animals received antibiotic treatment (sulfamethoxazole/trimethoprim, 400/80 mg/5 mL) for 7 days, followed by 3 days of rest. Microbial challenge was performed 3 times per week for 1, 2, or 3 weeks. After that, the animals were kept until the completion of 42 days of experiments, when they were euthanized. The alveolar bone microarchitecture was assessed by computed microtomography. RESULTS Both C57BL/6 and BALB/c mice exhibited significant bone volume loss and lower trabecular thickness as well as greater bone porosity compared to the (C) and (Sham) groups after 1 week of microbial challenge (p < .001). When comparing only the gavage groups regarding disease implantation, time and lineage, it was possible to observe that within 1 week of induction the disease was more established in BALB/c than in C57BL/6 (p < .05). CONCLUSIONS Our results reflected that after 1 week of microbial challenge, there was evidence of alveolar bone loss for both lineages, with the loss observed in BALB/c mice being more pronounced.
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Affiliation(s)
- Cristhiam de J. Hernández Martínez
- Department of Oral & Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of Sao Paulo—USPRibeirão Preto SPBrazil
| | - Pedro Felix Silva
- Department of Oral & Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of Sao Paulo—USPRibeirão Preto SPBrazil
| | - Sergio L. Salvador
- Department of Clinical Analyses, School of Pharmaceutical Sciences of Ribeirao PretoUniversity of Sao Paulo—USPRibeirão Preto SPBrazil
| | - Michel Messora
- Department of Oral & Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of Sao Paulo—USPRibeirão Preto SPBrazil
| | - Daniela B. Palioto
- Department of Oral & Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of Sao Paulo—USPRibeirão Preto SPBrazil
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Djoric J, Djinic Krasavcevic A, Barac M, Kuzmanovic Pficer J, Brkovic B, Nikolic-Jakoba N. Patient discomfort and intensity of intraseptal anesthesia of computer-controlled articaine/epinephrine delivery for scaling and root planing. Clin Oral Investig 2023; 27:6221-6234. [PMID: 37644233 DOI: 10.1007/s00784-023-05238-1] [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: 04/01/2023] [Accepted: 08/23/2023] [Indexed: 08/31/2023]
Abstract
OBJECTIVES The primary aim was to assess the pain during intraseptal anesthesia (ISA) administration, as well as during and after scaling and root planing (SRP). The secondary aims pertained to comparing the pain in different jaw regions and evaluating the factors affecting pain during ISA administration, during and after SRP. MATERIAL AND METHODS ISA was obtained with three different doses of 4% articaine with 1:100,000 epinephrine (4%Ar + Ep) in 360 patients. The pain levels were measured using the visual analogue scales (VAS) for pain intensity during ISA administration (VASa), during SRP (VASi), and after SRP (VASp). These findings were then correlated with periodontal parameters. Regression analysis was performed for pain during ISA, during and after SRP. RESULTS Anesthesia administration was painful in 80.8% of cases. VASa negatively correlated with pocket depth (PPD). VASi showed no dose-dependency, except in mandibular premolars. VASi negatively correlated with the clinical attachment level (CAL). VASp positively correlated with PPD and CAL. Positive bleeding on probing reduced the chance of pain during ISA administration. Longer anesthesia duration and wider anesthetic field (orally) increased the prospects of painless SRP. CONCLUSIONS No dose-dependent differences were found regarding patient discomfort and pain intensity of ISA delivery of 4%Ar + Ep for SRP. CLINICAL RELEVANCE The pain during ISA administration was mild and well tolerated regardless of the anesthetic dose. A lower intensity of pain during SRP can be expected in patients with greater CAL. Post-treatment pain can be anticipated after SRP in the regions with greater PPD and CAL. CLINICAL TRIALS REGISTRATION NUMBER NCT04392804 (May 9th, 2020).
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Affiliation(s)
- Jelica Djoric
- Department of Periodontology and Oral Medicine, School of Dental Medicine, University of Belgrade, Dr Subotica 4, Belgrade, Serbia.
| | - Ana Djinic Krasavcevic
- Department of Periodontology and Oral Medicine, School of Dental Medicine, University of Belgrade, Dr Subotica 4, Belgrade, Serbia
| | - Milena Barac
- Department of Periodontology and Oral Medicine, School of Dental Medicine, University of Belgrade, Dr Subotica 4, Belgrade, Serbia
| | - Jovana Kuzmanovic Pficer
- Department of Medical Statistics and Informatics, School of Dental Medicine, University of Belgrade, Dr Subotica 1, Belgrade, Serbia
| | - Bozidar Brkovic
- Department of Oral Surgery, School of Dental Medicine, University of Belgrade, Dr Subotica 4, Belgrade, Serbia
| | - Natasa Nikolic-Jakoba
- Department of Periodontology and Oral Medicine, School of Dental Medicine, University of Belgrade, Dr Subotica 4, Belgrade, Serbia
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Siddiqui YD, Nie X, Wang S, Abbasi Y, Park L, Fan X, Thumbigere-Math V, Chung MK. Substance P aggravates ligature-induced periodontitis in mice. Front Immunol 2023; 14:1099017. [PMID: 37122730 PMCID: PMC10140340 DOI: 10.3389/fimmu.2023.1099017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/23/2023] [Indexed: 05/02/2023] Open
Abstract
Periodontitis is one of the most common oral diseases in humans, affecting over 40% of adult Americans. Pain-sensing nerves, or nociceptors, sense local environmental changes and often contain neuropeptides. Recent studies have suggested that nociceptors magnify host response and regulate bone loss in the periodontium. A subset of nociceptors projected to periodontium contains neuropeptides, such as calcitonin gene-related peptide (CGRP) or substance P (SP). However, the specific roles of neuropeptides from nociceptive neural terminals in periodontitis remain to be determined. In this study, we investigated the roles of neuropeptides on host responses and bone loss in ligature-induced periodontitis. Deletion of tachykinin precursor 1 (Tac1), a gene that encodes SP, or treatment of gingiva with SP antagonist significantly reduced bone loss in ligature-induced periodontitis, whereas deletion of calcitonin related polypeptide alpha (Calca), a gene that encodes CGRP, showed a marginal role on bone loss. Ligature-induced recruitment of leukocytes, including neutrophils, and increase in cytokines leading to bone loss in periodontium was significantly less in Tac1 knockout mice. Furthermore, intra-gingival injection of SP, but not neurokinin A, induced a vigorous inflammatory response and osteoclast activation in alveolar bone and facilitated bone loss in ligature-induced periodontitis. Altogether, our data suggest that SP plays significant roles in regulating host responses and bone resorption in ligature-induced periodontitis.
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Affiliation(s)
- Yasir Dilshad Siddiqui
- Program in Neuroscience, Center to Advance Chronic Pain Research, Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Baltimore, MD, United States
- Department of Preventive Dentistry, College of Dentistry, Jouf University, Sakaka, Saudi Arabia
| | - Xuguang Nie
- Program in Neuroscience, Center to Advance Chronic Pain Research, Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Baltimore, MD, United States
| | - Sheng Wang
- Program in Neuroscience, Center to Advance Chronic Pain Research, Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Baltimore, MD, United States
| | - Yasaman Abbasi
- Program in Neuroscience, Center to Advance Chronic Pain Research, Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Baltimore, MD, United States
| | - Lauren Park
- Program in Neuroscience, Center to Advance Chronic Pain Research, Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Baltimore, MD, United States
| | - Xiaoxuan Fan
- Department of Microbiology and Immunology, Flow Cytometry Shared Service, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Vivek Thumbigere-Math
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, United States
| | - Man-Kyo Chung
- Program in Neuroscience, Center to Advance Chronic Pain Research, Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Baltimore, MD, United States
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Identification of Key Genes and Pathways Associated with Oxidative Stress in Periodontitis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9728172. [PMID: 36148415 PMCID: PMC9489423 DOI: 10.1155/2022/9728172] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 08/17/2022] [Indexed: 11/17/2022]
Abstract
Background and Objective. Oxidative stress has been associated with the progression of periodontitis. However, oxidative stress-related genes (OS-genes) have not been used as disease-specific biomarkers that correlate with periodontitis progression. This study is aimed at screening the key OS-genes and pathways in periodontitis by bioinformatics methods. Methods. The differentially expressed genes (DEGs) were identified using periodontitis-related microarray from the GEO database, and OS-genes were extracted from GeneCards database. The intersection of the OS-genes and the DEGs was considered as oxidative stress-related DEGs (OS-DEGs) in periodontitis. The Pearson correlation and protein-protein interaction analyses were used to screen key OS-genes. Gene set enrichment, functional enrichment, and pathway enrichment analyses were performed in OS-genes. Based on key OS-genes, a risk score model was constructed through logistic regression, receiver operating characteristic curve, and stratified analyses. Results. In total, 74 OS-DEGs were found in periodontitis, including 65 upregulated genes and 9 downregulated genes. Six of them were identified as key OS-genes (CXCR4, SELL, FCGR3B, FCGR2B, PECAM1, and ITGAL) in periodontitis. All the key OS-genes were significantly upregulated and associated with the increased risk of periodontitis. Functional enrichment analysis showed that these genes were mainly associated with leukocyte cell-cell adhesion, phagocytosis, and cellular extravasation. Pathway analysis revealed that these genes were involved in several signaling pathways, such as leukocyte transendothelial migration and osteoclast differentiation. Conclusion. In this study, we screened six key OS-genes that were screened as risk factors of periodontitis. We also identified multiple signaling pathways that might play crucial roles in regulating oxidative stress damage in periodontitis. In the future, more experiments need to be carried out to validate our current findings.
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Wang S, Nie X, Siddiqui Y, Wang X, Arora V, Fan X, Thumbigere-Math V, Chung MK. Nociceptor Neurons Magnify Host Responses to Aggravate Periodontitis. J Dent Res 2022; 101:812-820. [PMID: 35086367 DOI: 10.1177/00220345211069956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Periodontitis is a highly prevalent chronic inflammatory disease that progressively destroys the structures supporting teeth, leading to tooth loss. Periodontal tissue is innervated by abundant pain-sensing primary afferents expressing neuropeptides and transient receptor potential vanilloid 1 (TRPV1). However, the roles of nociceptive nerves in periodontitis and bone destruction are controversial. The placement of ligature around the maxillary second molar or the oral inoculation of pathogenic bacteria induced alveolar bone destruction in mice. Chemical ablation of nociceptive neurons in the trigeminal ganglia achieved by intraganglionic injection of resiniferatoxin decreased bone loss in mouse models of experimental periodontitis. Consistently, ablation of nociceptive neurons decreased the number of osteoclasts in alveolar bone under periodontitis. The roles of nociceptors were also determined by the functional inhibition of TRPV1-expressing trigeminal afferents using an inhibitory designer receptor exclusively activated by designer drugs (DREADD) receptor. Noninvasive chemogenetic functional silencing of TRPV1-expressing trigeminal afferents not only decreased induction but also reduced the progression of bone loss in periodontitis. The infiltration of leukocytes and neutrophils to the periodontium increased at the site of ligature, which was accompanied by increased amount of proinflammatory cytokines, such as receptor activator of nuclear factor κΒ ligand, tumor necrosis factor, and interleukin 1β. The extents of increase in immune cell infiltration and cytokines were significantly lower in mice with nociceptor ablation. In contrast, the ablation of nociceptors did not alter the periodontal microbiome under the conditions of control and periodontitis. Altogether, these results indicate that TRPV1-expressing afferents increase bone destruction in periodontitis by promoting hyperactive host responses in the periodontium. We suggest that specific targeting of neuroimmune and neuroskeletal regulation can offer promising therapeutic targets for periodontitis supplementing conventional treatments.
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Affiliation(s)
- S Wang
- Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Program in Neuroscience, Center to Advance Chronic Pain Research, Baltimore, MD, USA
| | - X Nie
- Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Program in Neuroscience, Center to Advance Chronic Pain Research, Baltimore, MD, USA
| | - Y Siddiqui
- Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Program in Neuroscience, Center to Advance Chronic Pain Research, Baltimore, MD, USA
| | - X Wang
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - V Arora
- Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Program in Neuroscience, Center to Advance Chronic Pain Research, Baltimore, MD, USA
| | - X Fan
- Department of Microbiology and Immunology, Flow Cytometry Shared Service, University of Maryland School of Medicine, Baltimore, MD, USA
| | - V Thumbigere-Math
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - M K Chung
- Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Program in Neuroscience, Center to Advance Chronic Pain Research, Baltimore, MD, USA
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Murakami N, Yoshikawa K, Tsukada K, Kamio N, Hayashi Y, Hitomi S, Kimura Y, Shibuta I, Osada A, Sato S, Iwata K, Shinoda M. Butyric acid modulates periodontal nociception in Porphyromonas gingivalis-induced periodontitis. J Oral Sci 2022; 64:91-94. [PMID: 34980829 DOI: 10.2334/josnusd.21-0483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
PURPOSE Periodontitis progresses with chronic inflammation, without periodontal pain. However, the underlying mechanisms are not well known. Here, the involvement of butyric acid (BA) in periodontal pain sensitivity in Porphyromonas gingivalis (P. gingivalis)-induced periodontitis was examined. METHODS P. gingivalis was inoculated into the ligature which was tied around the molar (P. gingivalis-L) and the gingival mechanical head withdrawal threshold (MHWT) was measured. Following P. gingivalis-L, the expressions of orphan G protein-coupled receptor 41 (GPR41) in trigeminal ganglion (TG) neurons were examined. The amount of gingival BA was analyzed following the P. gingivalis-L and the changes in the MHWT in complete Freund's adjuvant (CFA)-injected gingival tissue by gingival BA were examined. The changes in the MHWT following P. gingivalis-L by gingival GPR41 antagonist (HA) were examined. RESULTS No change in the MHWT was observed, GPR41-immunoreactive TG neurons were increased following P. gingivalis-L. The gingival BA amount increased following P. gingivalis-L, and the gingival BA suppressed the decrease in MHWT following CFA. HA decreased MHWT following P. gingivalis-L. CONCLUSION Gingival BA modulates periodontal mechanical nociception via GPR41 signaling in P. gingivalis-L-induced periodontitis.
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Affiliation(s)
- Naoki Murakami
- Department of Periodontology, Nihon University School of Dentistry
| | - Kenji Yoshikawa
- Inorganic Functional Analysis Laboratory, Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University
| | - Kohei Tsukada
- Inorganic Functional Analysis Laboratory, Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University
| | - Noriaki Kamio
- Department of Microbiology, Nihon University School of Dentistry
| | | | - Suzuro Hitomi
- Department of Physiology, Nihon University School of Dentistry
| | - Yuki Kimura
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry
| | - Ikuko Shibuta
- Department of Physiology, Nihon University School of Dentistry
| | - Ayaka Osada
- Department of Orthodontics, Nihon University School of Dentistry
| | - Shuichi Sato
- Department of Periodontology, Nihon University School of Dentistry
| | - Koichi Iwata
- Department of Physiology, Nihon University School of Dentistry
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Crosstalk between Venous Thromboembolism and Periodontal Diseases: A Bioinformatics Analysis. DISEASE MARKERS 2021; 2021:1776567. [PMID: 34925639 PMCID: PMC8683231 DOI: 10.1155/2021/1776567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/22/2021] [Accepted: 11/25/2021] [Indexed: 12/12/2022]
Abstract
Background This current study applied bioinformatics analysis to reveal the crosstalk between venous thromboembolism (VTE) and periodontitis, as well as the potential role of immune-related genes in this context. Methods Expression data were downloaded from the GEO database. Blood samples from venous thromboembolism (VTE) were used (GSE19151), while for periodontal disease, we used gingival tissue samples (GSE10334, GSE16134, and GSE23586). After batch correction, we used “limma” packages of R language for differential expression analysis (p value < 0.05, ∣logFC | ≥0.5). We used Venn diagrams to extract the differentially expressed genes common to VTE and periodontitis as potential crosstalk genes and applied functional enrichment analysis (GO biological process and KEGG pathway). The protein-protein interaction (PPI) network of crosstalk genes was constructed by Cytoscape software. The immune-related genes were downloaded from the literature. The Wilcoxon test was used to test the scores of immune infiltrating cells. The crosstalk genes were further screened by LASSO Logistic Regression. Results For periodontitis, 427 case and 136 control samples, and for VTE, 70 case and 63 control samples were included. The obtained PPI network had 1879 nodes and 2257 edges. Moreover, 782 immune genes and 28 cell types were included in the analysis. Over 90% of immune cells had different expressions in VTE and periodontitis. We obtained 12 significant pathways corresponding to crosstalk genes. CD3D, CSF3R, and CXCR4 acted as an immune gene and a crosstalk gene. We obtained a total of 12 shared biomarker crosstalk genes. Among those 12 biomarker crosstalk genes, 4 were immune genes (LGALS1, LSP1, SAMSN1, and WIPF1). Conclusion Four biomarker crosstalk genes between periodontitis and VTE were also immune genes, i.e., LGALS1, LSP1, SAMSN1, and WIPF1. The findings of the current study need further validation and are a basis for development of biomarkers.
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Kim AR, Bak EJ, Yoo YJ. Distribution of neutrophil and monocyte/macrophage populations induced by the CXCR4 inhibitor AMD3100 in blood and periodontal tissue early after periodontitis induction. J Periodontal Res 2021; 57:332-340. [PMID: 34927238 DOI: 10.1111/jre.12963] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/16/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022]
Abstract
CXCR4, a CXCL12 receptor, is expressed on epithelial cells, fibroblasts, and inflammatory cells. The CXCR4-CXCL12 interaction is related to the migration of neutrophils and monocytes/macrophages. Periodontitis, an inflammatory disease mainly caused by gram-negative bacteria, is characterized by infiltration of circulating inflammatory cells and alveolar bone (AB) loss. To investigate whether CXCR4 is involved in the distribution of neutrophils and monocytes/macrophages early after periodontitis induction, we examined the effects of AMD3100 (AMD), a CXCR4 antagonist, in ligature-induced periodontitis mice and LPS-injected air pouch mice. The periodontitis study was accomplished in control (C), periodontitis (P), and P + AMD groups. Periodontitis was induced by ligation of the mandibular first molar. AMD was intraperitoneally administered daily beginning the day before ligation until sacrifice on the third day after ligation. The air pouch study was accomplished in C, lipopolysaccharide (LPS), and LPS + AMD groups. Air pouches on mice backs were formed by subcutaneous injection of sterilized air. AMD was administered and then LPS was injected into the air pouch. For the detection of neutrophils and monocytes/macrophages in blood and air pouch exudates, flow cytometry was performed with anti-Ly6G/anti-CD11b antibodies (Abs) and anti-CD115 Ab, respectively. In periodontal tissue, Ly6G+ cells and CD115+ cells were counted by immunohistological analysis. AB loss was estimated by the periodontal ligament area in the furcation. In the periodontitis study, the P group showed higher numbers of Ly6G+ cells and CD115+ cells in blood and periodontal tissue than the C group. The P + AMD group showed a greater number of Ly6G+ cells and CD115+ cells in blood, but not in periodontal tissue compared to the P group. There was no difference in AB loss between the P and P + AMD groups. In the air pouch study, the LPS group had higher levels of Ly6G+ CD11b+ cells and CD115+ cells in both blood and exudates than the C group. The number of these cells in the LPS + AMD group was higher in blood than in the LPS group, but not in the exudates. The CXCR4 antagonist further increased neutrophil and monocyte/macrophage populations in the blood, but did not alter the levels in the periodontal tissue and exudates in mice with periodontitis and LPS-injected air pouches. These results suggest that during inflammatory conditions such as periodontitis, CXCR4 is involved in the distribution of neutrophils and monocytes/macrophages in the blood, but not in inflamed peripheral tissues.
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Affiliation(s)
- Ae Ri Kim
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, South Korea.,Department of Applied Life Science, The Graduate School, Yonsei University, Seoul, South Korea.,BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Eun-Jung Bak
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, South Korea
| | - Yun-Jung Yoo
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, South Korea
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Wang L, Zhang T, Zhang Z, Wang Z, Zhou YJ, Wang Z. B cell activating factor regulates periodontitis development by suppressing inflammatory responses in macrophages. BMC Oral Health 2021; 21:426. [PMID: 34481478 PMCID: PMC8418735 DOI: 10.1186/s12903-021-01788-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 08/28/2021] [Indexed: 01/02/2023] Open
Abstract
Background B cell activating factor (BAFF) is a member of the tumor necrosis factor (TNF) superfamily with immunomodulatory effects on both innate and adaptive immune responses. Periodontitis is an inflammatory disease characterized by periodontal soft tissue inflammation and the progressive loss of periodontal ligament and alveolar bone. Macrophages are closely related to periodontitis progression. However, the role of BAFF in periodontitis development and macrophage polarization and the underlying mechanism remain unknown. Methods In vivo, a ligation-induced mouse model of periodontitis for BAFF blockade was established to investigate the expression of inducible nitric oxide synthase (iNOS) through real-time PCR (RT-PCR) and immunohistochemistry. In addition, the level of TNF-α in the periodontium, the number of osteoclasts, and alveolar bone resorption were observed. In vitro, RAW 264.7 macrophage cells were treated with 100 ng/mL Porphyromonas gingivalis lipopolysaccharide (P. gingivalis LPS) in either the presence or absence of 50 nM small interfering RNA (siRNA) targeting BAFF, followed by further incubation for 24 h. These cells and supernatants were collected and stored for RT-PCR, enzyme-linked immunosorbent assay, western blotting and immunofluorescence microscopy. Results In vivo, BAFF blockade decreased the levels of TNF-α in the periodontium in a ligature-induced mouse periodontitis model. Reduced osteoclast formation and lower alveolar bone loss were also observed. In addition, BAFF blockade was related to the expression of polarization signature molecules in macrophages. In vitro, BAFF knockdown notably suppressed the production of TNF-α in RAW 264.7 cells stimulated by P. gingivalis LPS. Moreover, BAFF knockdown attenuated the polarization of RAW 264.7 cells into classically activated macrophages (M1), with reduced expression of iNOS. Conclusions Based on our limited evidence, we showed BAFF blockade exhibits potent anti-inflammatory properties in mice experimental periodontitis in vivo and in P. gingivalis LPS-treated RAW 264.7 cells in vitro, and macrophage polarization may be responsible for this effect. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-021-01788-6.
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Affiliation(s)
- Lixia Wang
- Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, 8th Gongti South Road, Beijing, 100020, China.,International Medical Center, Tianjin Stomatological Hospital, School Medicine, Nankai University, 75th Dagu North Road, Tianjin, 300041, China.,Tianjin Key Laboratory of Oral Maxillofacial Function Reconstruction, 75th Dagu North Road, Tianjin, 300041, China
| | - Tianyi Zhang
- Department of Stomatology, School of Stomatology, Shanxi Medical University, 56 Xinjian South Road, Yingze, Taiyuan, 030001, Shaanxi, China
| | - Zheng Zhang
- International Medical Center, Tianjin Stomatological Hospital, School Medicine, Nankai University, 75th Dagu North Road, Tianjin, 300041, China.,Tianjin Key Laboratory of Oral Maxillofacial Function Reconstruction, 75th Dagu North Road, Tianjin, 300041, China
| | - Zihan Wang
- Department of Immunology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Beijing Key Laboratory for Cancer Invasion and Metastasis, Department of Oncology, Capital Medical University, Beijing, China
| | - Yu-Jie Zhou
- Department of Immunology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Beijing Key Laboratory for Cancer Invasion and Metastasis, Department of Oncology, Capital Medical University, Beijing, China.
| | - Zuomin Wang
- Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, 8th Gongti South Road, Beijing, 100020, China.
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Acute and Chronic Pain from Facial Skin and Oral Mucosa: Unique Neurobiology and Challenging Treatment. Int J Mol Sci 2021; 22:ijms22115810. [PMID: 34071720 PMCID: PMC8198570 DOI: 10.3390/ijms22115810] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/18/2021] [Accepted: 05/20/2021] [Indexed: 12/14/2022] Open
Abstract
The oral cavity is a portal into the digestive system, which exhibits unique sensory properties. Like facial skin, the oral mucosa needs to be exquisitely sensitive and selective, in order to detect harmful toxins versus edible food. Chemosensation and somatosensation by multiple receptors, including transient receptor potential channels, are well-developed to meet these needs. In contrast to facial skin, however, the oral mucosa rarely exhibits itch responses. Like the gut, the oral cavity performs mechanical and chemical digestion. Therefore, the oral mucosa needs to be insensitive, to some degree, in order to endure noxious irritation. Persistent pain from the oral mucosa is often due to ulcers, involving both tissue injury and infection. Trigeminal nerve injury and trigeminal neuralgia produce intractable pain in the orofacial skin and the oral mucosa, through mechanisms distinct from those seen in the spinal area, which is particularly difficult to predict or treat. The diagnosis and treatment of idiopathic chronic pain, such as atypical odontalgia (idiopathic painful trigeminal neuropathy or post-traumatic trigeminal neuropathy) and burning mouth syndrome, remain especially challenging. The central integration of gustatory inputs might modulate chronic oral and facial pain. A lack of pain in chronic inflammation inside the oral cavity, such as chronic periodontitis, involves the specialized functioning of oral bacteria. A more detailed understanding of the unique neurobiology of pain from the orofacial skin and the oral mucosa should help us develop novel methods for better treating persistent orofacial pain.
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Varotto BLR, Martinez RCR, Gouveia FV, Antunes GF, Fabri GMDC, Ballester G, Antequera R, de Siqueira SRDT, Fonoff ET, Teixeira MJ, de Siqueira JTT. Increased Anxiety-Like Behavior in the Acute Phase of a Preclinical Model of Periodontal Disease. Front Neurol 2021; 11:598851. [PMID: 33414759 PMCID: PMC7782965 DOI: 10.3389/fneur.2020.598851] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/30/2020] [Indexed: 12/11/2022] Open
Abstract
Periodontal disease (PD) is an infectious-inflammatory oral disease that is highly prevalent among adolescence and adulthood and can lead to chronic orofacial pain and be associated with anxiety, stress and depression. This study aimed to identify anxiety-like behaviors in the ligature-induced murine preclinical model of PD in different phases of the disease (i.e., acute vs. chronic). Also, we investigated orofacial mechanical allodynia thresholds and superficial cortical plasticity along the orofacial motor cortex in both disease phases. To this aim, 25 male Wistar rats were randomly allocated in acute (14 days) or chronic (28 days) ligature-induced-PD groups and further divided into active-PD or sham-PD. Anxiety-like behavior was evaluated using the elevated plus maze, mechanical allodynia assessed using the von Frey filaments test and superficial motor cortex mapping was performed with electrical transdural stimulation. We observed increased anxiety-like behavior in active-PD animals in the acute phase, characterized by decreased number of entries into the open arm extremities [t(1,7) = 2.42, p = 0.04], and reduced time spent in the open arms [t(1,7) = 3.56, p = 0.01] and in the open arm extremities [t(1,7) = 2.75, p = 0.03]. There was also a reduction in the mechanical allodynia threshold in all active-PD animals [Acute: t(1,7) = 8.81, p < 0.001; Chronic: t(1,6) = 60.0, p < 0.001], that was positively correlated with anxiety-like behaviors in the acute group. No differences were observed in motor cortex mapping. Thus, our findings show the presence of anxiety-like behaviors in the acute phase of PD making this a suitable model to study the impact of anxiety in treatment response and treatment efficacy.
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Affiliation(s)
- Bruna Luiza Roim Varotto
- Dental Team, and Dental Research Group on Pain and Mental Health of Institute of Psychiatry, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Raquel Chacon Ruiz Martinez
- Division of Neuroscience, Hospital Sirio Libanês, São Paulo, Brazil.,School of Medicine, LIM/23 - Institute of Psychiatry, University of São Paulo, São Paulo, Brazil
| | - Flavia Venetucci Gouveia
- Division of Neuroscience, Hospital Sirio Libanês, São Paulo, Brazil.,Biological Sciences Platform, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Geiza Fernanda Antunes
- Division of Neuroscience, Hospital Sirio Libanês, São Paulo, Brazil.,School of Medicine, LIM/23 - Institute of Psychiatry, University of São Paulo, São Paulo, Brazil
| | | | - Gerson Ballester
- School of Medicine, City of São Paulo University, São Paulo, Brazil
| | - Reynaldo Antequera
- Dental Team, and Dental Research Group on Pain and Mental Health of Institute of Psychiatry, School of Medicine, University of São Paulo, São Paulo, Brazil
| | | | - Erich Talamoni Fonoff
- Pain Center and Division of Functional Neurosurgery, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Manoel Jacobsen Teixeira
- Pain Center and Division of Functional Neurosurgery, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - José Tadeu Tesseroli de Siqueira
- Dental Team, and Dental Research Group on Pain and Mental Health of Institute of Psychiatry, School of Medicine, University of São Paulo, São Paulo, Brazil.,Pain Center and Division of Functional Neurosurgery, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil.,Orofacial Pain Team, Dentistry Division, School of Medicine, Hospital das Clinicas, University of São Paulo, São Paulo, Brazil
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Reyes AWB, Arayan LT, Huy TXN, Vu SH, Kang CK, Min W, Lee HJ, Lee JH, Kim S. Chemokine receptor 4 (CXCR4) blockade enhances resistance to bacterial internalization in RAW264.7 cells and AMD3100, a CXCR4 antagonist, attenuates susceptibility to Brucella abortus 544 infection in a murine model. Vet Microbiol 2019; 237:108402. [PMID: 31585647 DOI: 10.1016/j.vetmic.2019.108402] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 02/06/2023]
Abstract
We investigated the involvement of chemokine receptor type 4 (CXCR4) signaling on the outcome of Brucella (B.) abortus 544 infection in murine macrophages and in a mouse model. CXCR4 manipulation were first evaluated for Brucella invasion and intracellular survival efficiency, mitogen-activated protein kinases (ERK1/2, JNK, p38α) activation and generation of nitric oxide (NO), and then in the splenic bacterial proliferation and cytokine production in BALB/c mice. CXCR4 blockade is involved in the successful control of Brucella invasion, reduction of ERK1/2 phosphorylation and inhibition of nitric oxide release from macrophages. Furthermore, using a reported CXCR4-specific antagonist AMD3100 resulted in splenomegaly but attenuated Brucella proliferation in these organs with elevated serum levels of MCP-1, TNF and IL-12. These findings provide insights on the contribution of CXCR4 signaling in the phagocytic pathway and immune modulation during B. abortus infection.
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Affiliation(s)
| | - Lauren Togonon Arayan
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Tran Xuan Ngoc Huy
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Son Hai Vu
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Chang Keun Kang
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Wongi Min
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Hu Jang Lee
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - John Hwa Lee
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Suk Kim
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea.
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In Vitro Evaluation of Bacterial Adhesion and Bacterial Viability of Streptococcus mutans, Streptococcus sanguinis, and Porphyromonas gingivalis on the Abutment Surface of Titanium and Zirconium Dental Implants. Int J Dent 2019; 2019:4292976. [PMID: 31312218 PMCID: PMC6595387 DOI: 10.1155/2019/4292976] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/25/2019] [Accepted: 05/28/2019] [Indexed: 12/14/2022] Open
Abstract
Objective To evaluate the in vitro adherence and viability of 3 bacterial species Streptococcus mutans (ATCC 25175), Streptococcus sanguinis (ATCC 10556), and Porphyromonas gingivalis (ATCC 33277) on the surfaces of dental implants of titanium, zirconium, and their respective fixing screws. Methods Two analysis groups were formed: group 1 with 3 titanium pillars and group 2 with 3 zirconium pillars, each with their respective fixing screws. Each of these groups was included in tubes with bacterial cultures of Streptococcus mutans (ATCC 25175), Streptococcus sanguinis (ATCC 10556), and Porphyromonas gingivalis (ATCC 33277). These samples were incubated at 37°C under anaerobic conditions. Bacterial adherence was assessed by measurement of the change in colony-forming units (CFU), and bacterial viability was evaluated with the colorimetric test of 3-(4,5-dimethylthiazol-2)-2,5 diphenyl tetrazolium bromide (MTT). Results The bacterial adhesion in the titanium abutments was higher for Streptococcus mutans (190.90 CFU/mL), and the viability was greater in Porphyromonas gingivalis (73.22%). The zirconium abutment group showed the highest adherence with Streptococcus mutans (331.82 CFU/mL) and the highest bacterial viability with the S. sanguinis strain (38.42%). The titanium fixation screws showed the highest adhesion with S. sanguinis (132.5 CFU/mL) compared to the zirconium fixation screws where S. mutans had the highest adhesion (145.5 CFU/mL). The bacterial viability of S. mutans was greater both in the titanium fixation screws and in the zirconium fixation screws 78.04% and 57.38%, respectively. Conclusions Our results indicate that there is in vitro bacterial adherence and viability in both titanium abutments and zirconium abutments and fixation screws for both. Streptococcus mutans is the microorganism that shows the greatest adherence to the surfaces of both titanium and zirconium and the fixing screws of the latter. On the contrary, bacterial viability is greater on the titanium abutments with P. gingivalis than on the zirconium abutments with S. sanguinis. With respect to the fixation screws, in both cases, the viability of S. mutans was greater with respect to the other bacteria. In general, the titanium abutments showed less adherence but greater bacterial viability.
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TET1 Knockdown Inhibits Porphyromonas gingivalis LPS/IFN-γ-Induced M1 Macrophage Polarization through the NF-κB Pathway in THP-1 Cells. Int J Mol Sci 2019; 20:ijms20082023. [PMID: 31022963 PMCID: PMC6514734 DOI: 10.3390/ijms20082023] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/06/2019] [Accepted: 04/22/2019] [Indexed: 12/13/2022] Open
Abstract
Tet-eleven translocation 1 (TET1) is a dioxygenase that plays an important role in decreasing the abundance of DNA methylation and changing the expression levels of specific genes related to inflammation. Porphyromonas gingivalis (Pg.) lipopolysaccharide (LPS) can induce periodontal diseases that present with severe bone loss and collagen fiber destruction accompanied by a high number of M1 macrophages. M1-polarized macrophages are pivotal immune cells that promote the progression of the periodontal inflammatory response, but the function of TET1 during M1 macrophage activation is still unknown. Our results showed that the mRNA and protein expression levels of TET1 decreased in THP-1 cells during M1 macrophage differentiation. TET1 knockdown resulted in a significant decrease in the production of proinflammatory markers such as IL-6, TNF-α, CCL2, and HLA-DR in Pg. LPS/IFN-γ- and Escherichia coli (E. coli) LPS/IFN-γ-induced M1 macrophages. Mechanistically, TET1 knockdown downregulated the activity of the NF-κB signaling pathway. After treatment with the NF-κB inhibitor BAY 11-7082, M1 marker expression showed no significant difference between the TET1 knockdown group and the control group. Taken together, these results suggest that TET1 depletion inhibited Pg. LPS/IFN-γ-induced M1 macrophage polarization through the NF-κB pathway in THP-1 cells.
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