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Lee H, Joo J, Song J, Kim H, Kim YH, Park HR. Immunological link between periodontitis and type 2 diabetes deciphered by single-cell RNA analysis. Clin Transl Med 2023; 13:e1503. [PMID: 38082425 PMCID: PMC10713875 DOI: 10.1002/ctm2.1503] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/19/2023] [Accepted: 11/24/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (DM) is a complex metabolic disorder that causes various complications, including periodontitis (PD). Although a bidirectional relationship has been reported between DM and PD, their immunological relationship remains poorly understood. Therefore, this study aimed to compare the immune response in patients with PD alone and in those with both PD and DM (PDDM) to expand our knowledge of the complicated connection between PD and DM. METHODS Peripheral blood mononuclear cells were collected from 11 healthy controls, 10 patients with PD without DM, and six patients with PDDM, followed by analysis using single-cell RNA sequencing. The differences among groups were then compared based on intracellular and intercellular perspectives. RESULTS Compared to the healthy state, classical monocytes exhibited the highest degree of transcriptional change, with elevated levels of pro-inflammatory cytokines in both PD and PDDM. DM diminished the effector function of CD8+ T and natural killer (NK) cells as well as completely modified the differentiation direction of these cells. Interestingly, a prominent pathway, RESISTIN, which is known to increase insulin resistance and susceptibility to diabetes, was found to be activated under both PD and PDDM conditions. In particular, CAP1+ classical monocytes from patients with PD and PDDM showed elevated nuclear factor kappa B-inducing kinase activity. CONCLUSIONS Overall, this study elucidates how the presence of DM contributes to the deterioration of T/NK cell immunity and the immunological basis connecting PD to DM.
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Affiliation(s)
- Hansong Lee
- Medical Research InstitutePusan National UniversityYangsanRepublic of Korea
| | - Ji‐Young Joo
- Department of PeriodontologySchool of Dentistry, Pusan National UniversityYangsanRepublic of Korea
| | - Jae‐Min Song
- Department of Oral and Maxillofacial SurgerySchool of Dentistry, Pusan National UniversityYangsanRepublic of Korea
| | - Hyun‐Joo Kim
- Department of PeriodontologyDental and Life Science Institute, School of Dentistry, Pusan National UniversityYangsanRepublic of Korea
- Department of Periodontology and Dental Research InstitutePusan National University Dental HospitalYangsanRepublic of Korea
- Periodontal Disease Signaling Network Research CenterSchool of Dentistry, Pusan National UniversityYangsanRepublic of Korea
| | - Yun Hak Kim
- Periodontal Disease Signaling Network Research CenterSchool of Dentistry, Pusan National UniversityYangsanRepublic of Korea
- Department of Biomedical Informatics, School of MedicinePusan National UniversityYangsanRepublic of Korea
- Department of AnatomySchool of Medicine, Pusan National UniversityYangsanRepublic of Korea
| | - Hae Ryoun Park
- Department of Periodontology and Dental Research InstitutePusan National University Dental HospitalYangsanRepublic of Korea
- Periodontal Disease Signaling Network Research CenterSchool of Dentistry, Pusan National UniversityYangsanRepublic of Korea
- Department of Oral PathologyDental and Life Science Institute, Pusan National UniversityYangsanRepublic of Korea
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Halloun B, Hashai K, Pinto N, Musai N, Klein Y, Polak D. Neutrophils modulate natural killer-mediated osteoclastogenesis during Aggregatibacteractinomycetemcomitans (JP2 clone) infection. iScience 2023; 26:106430. [PMID: 37588165 PMCID: PMC10425674 DOI: 10.1016/j.isci.2023.106430] [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: 05/31/2022] [Revised: 10/17/2022] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
The study investigates the interplay of neutrophils and natural-killer cells (NK) in mediating osseoresorption during infection of molar-incisor-pattern-periodontitis (MIPP). Human neutrophils from periodontally healthy and MIPP patients were inoculated with the periopathogen Aggregatibacter-actinomycetemcomitans (JP2) and their supernatants were exposed to NK to study their function and osteoclastogenesis promotion. A mouse MIPP model was used to compare disease progression following NK versus neutrophils depletion. The exposure of primary NK to supernatants of neutrophils inoculated with JP2 led to NK cell arrest and activation with enhanced osteoprotegerin expression. Incubation of monocytes with NK led to osteoclastogenesis, whereas NK that were pre-exposed to healthy neutrophil supernatant showed reduced osteoclastogenesis. In mice, NK depletion led to the similar bone phenotype as the neutrophil's depletion highlighting their role on osseoprotection. The present study portrays a key crosstalk between neutrophils and NK cells during JP2 infection as a central mechanism that regulates bone loss.
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Affiliation(s)
- Bshara Halloun
- Department of Oral and Maxillofacial Surgery, Hebrew University–Hadassah, Jerusalem, Israel
| | - Koren Hashai
- Department of Periodontology, Hebrew University-Hadassah Faculty of Dental Medicine, Israel
| | - Noy Pinto
- Department of Orthodontics, Hebrew University-Hadassah Faculty of Dental Medicine, Israel
| | - Nadav Musai
- Department of Periodontology, Hebrew University-Hadassah Faculty of Dental Medicine, Israel
| | - Yehuda Klein
- Department of Orthodontics, Hebrew University-Hadassah Faculty of Dental Medicine, Israel
| | - David Polak
- Department of Periodontology, Hebrew University-Hadassah Faculty of Dental Medicine, Israel
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Alghamdi B, Jeon HH, Ni J, Qiu D, Liu A, Hong JJ, Ali M, Wang A, Troka M, Graves DT. Osteoimmunology in Periodontitis and Orthodontic Tooth Movement. Curr Osteoporos Rep 2023; 21:128-146. [PMID: 36862360 PMCID: PMC10696608 DOI: 10.1007/s11914-023-00774-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/04/2023] [Indexed: 03/03/2023]
Abstract
PURPOSE OF REVIEW To review the role of the immune cells and their interaction with cells found in gingiva, periodontal ligament, and bone that leads to net bone loss in periodontitis or bone remodeling in orthodontic tooth movement. RECENT FINDINGS Periodontal disease is one of the most common oral diseases causing inflammation in the soft and hard tissues of the periodontium and is initiated by bacteria that induce a host response. Although the innate and adaptive immune response function cooperatively to prevent bacterial dissemination, they also play a major role in gingival inflammation and destruction of the connective tissue, periodontal ligament, and alveolar bone characteristic of periodontitis. The inflammatory response is triggered by bacteria or their products that bind to pattern recognition receptors that induce transcription factor activity to stimulate cytokine and chemokine expression. Epithelial, fibroblast/stromal, and resident leukocytes play a key role in initiating the host response and contribute to periodontal disease. Single-cell RNA-seq (scRNA-seq) experiments have added new insight into the roles of various cell types in the response to bacterial challenge. This response is modified by systemic conditions such as diabetes and smoking. In contrast to periodontitis, orthodontic tooth movement (OTM) is a sterile inflammatory response induced by mechanical force. Orthodontic force application stimulates acute inflammatory responses in the periodontal ligament and alveolar bone stimulated by cytokines and chemokines that produce bone resorption on the compression side. On the tension side, orthodontic forces induce the production of osteogenic factors, stimulating new bone formation. A number of different cell types, cytokines, and signaling/pathways are involved in this complex process. Inflammatory and mechanical force-induced bone remodeling involves bone resorption and bone formation. The interaction of leukocytes with host stromal cells and osteoblastic cells plays a key role in both initiating the inflammatory events as well as inducing a cellular cascade that results in remodeling in orthodontic tooth movement or in tissue destruction in periodontitis.
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Affiliation(s)
- Bushra Alghamdi
- Department of Endodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, 19104, Philadelphia, USA
- Department of Restorative Dental Sciences, College of Dentistry, Taibah University, Medina, 42353, Kingdom of Saudi Arabia
| | - Hyeran Helen Jeon
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jia Ni
- Department of Periodontics, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Dongxu Qiu
- Department of Neurology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Alyssia Liu
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, 19104, Philadelphia, USA
| | - Julie J Hong
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, 19104, Philadelphia, USA
| | - Mamoon Ali
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, 19104, Philadelphia, USA
| | - Albert Wang
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, 19104, Philadelphia, USA
| | - Michael Troka
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, 19104, Philadelphia, USA
| | - Dana T Graves
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, 19104, Philadelphia, USA.
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4
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Wang Q, Sun Y, Zhou T, Jiang C, A L, Xu W. Gut microbiota-dependent trimethylamine n-oxide pathway contributes to the bidirectional relationship between intestinal inflammation and periodontitis. Front Cell Infect Microbiol 2023; 12:1125463. [PMID: 36710972 PMCID: PMC9880481 DOI: 10.3389/fcimb.2022.1125463] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 12/28/2022] [Indexed: 01/14/2023] Open
Abstract
Background Intestinal inflammation and periodontitis influence the development of each other through the bidirectional relationship. As the intestinal microbiome metabolite, trimethylamine-N-oxide (TMAO) could contribute to chronic inflammation in the gut by influencing the gut microbial composition and intestinal immunity. Increased circulating TMAO levels often accompany clinical findings in patients with experimental periodontitis. However, the role of TMAO in the bidirectional relationship between intestinal inflammation and periodontitis remains unclear. Thus, we explored whether TMAO influences the periodontitis process by affecting intestinal immunity and microbial composition in this article. Methods Periodontitis was induced by unilateral ligation of the first molar in mice, and 3,3-dimethyl-1-butanol (DMB) was used as an inhibitor to reduce TMAO circulating. Twenty-five BALB/c mice were randomly assigned to five study sets (n = 5/group): no periodontitis with DMB (Control group), periodontitis (P) group, periodontitis with TMAO (P+TMAO) group, periodontitis with TMAO and DMB (P+TMAO+DMB) group, and periodontitis with DMB (P+DMB) group. The effect of TMAO was determined by assessing changes in intestinal histology, intestinal flora composition, periodontal tissue, and periodontal pro-inflammatory factors at ten days. Results The outcomes indicated a marked improvement in the intestinal inflammation severity, and intestinal flora diversity was reduced. Firmicutes number and the ratio of Firmicutes/Bacteroidetes were improved in the P+TMAO group. In addition, the alveolar bone resorption and the degree of periodontal tissue inflammation were more severe in the P+TMAO group than in other groups. Immunohistochemistry showed higher levels of TGF-β and IL-1β expression in the periodontal tissues of P+TMAO. Conclusions Our data suggest that TMAO could influence periodontal immunity and promote periodontal inflammation by affecting the intestinal microenvironment, revealing TMAO may affect the development of periodontitis through the bidirectional relationship of the oral-gut axis.
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Affiliation(s)
- Qiqi Wang
- Department of Periodontology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Yue Sun
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China,Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, Changchun, China
| | - Tianyu Zhou
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Cong Jiang
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Lan A
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China,Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, Changchun, China,*Correspondence: Lan A, ; Wenzhou Xu,
| | - Wenzhou Xu
- Department of Periodontology, School and Hospital of Stomatology, Jilin University, Changchun, China,Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, Changchun, China,*Correspondence: Lan A, ; Wenzhou Xu,
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Kebschull M, Kroeger AT, Papapanou PN. Differential Expression, Functional and Machine Learning Analysis of High-Throughput -Omics Data Using Open-Source Tools. Methods Mol Biol 2023; 2588:317-351. [PMID: 36418696 DOI: 10.1007/978-1-0716-2780-8_19] [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: 11/24/2022]
Abstract
Today, -omics analyses, including the systematic cataloging of messenger RNA and microRNA sequences or DNA methylation patterns in a cell population, organ or tissue sample, allow for an unbiased, comprehensive genome-level analysis of complex diseases, offering a large advantage over earlier "candidate" gene or pathway analyses. A primary goal in the analysis of these high-throughput assays is the detection of those features among several thousand that differ between different groups of samples. In the context of oral biology, our group has successfully utilized -omics technology to identify key molecules and pathways in different diagnostic entities of periodontal disease.A major issue when inferring biological information from high-throughput -omics studies is the fact that the sheer volume of high-dimensional data generated by contemporary technology is not appropriately analyzed using common statistical methods employed in the biomedical sciences. Furthermore, machine learning methods facilitate the detection of additional patterns, beyond the mere identification of lists of features that differ between groups.Herein, we outline a robust and well-accepted bioinformatics workflow for the initial analysis of -omics data using open-source tools. We outline a differential expression analysis pipeline that can be used for data from both arrays and sequencing experiments, and offers the possibility to account for random or fixed effects. Furthermore, we present an overview of the possibilities for a functional analysis of the obtained data including subsequent machine learning approaches in form of (i) supervised classification algorithms in class validation and (ii) unsupervised clustering in class discovery.
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Affiliation(s)
- Moritz Kebschull
- Periodontal Research Group, Institute of Clinical Sciences, College of Medical & Dental Sciences, The University of Birmingham, Birmingham, UK. .,Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, NY, USA. .,Birmingham Community Healthcare NHS Trust, Birmingham, UK.
| | - Annika Therese Kroeger
- Birmingham Community Healthcare NHS Trust, Birmingham, UK.,Department of Oral Surgery, School of Dentistry, University of Birmingham, Birmingham, UK
| | - Panos N Papapanou
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, NY, USA
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6
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Kebschull M, Kroeger AT, Papapanou PN. Genome-Wide Analysis of Periodontal and Peri-implant Cells and Tissues. Methods Mol Biol 2023; 2588:295-315. [PMID: 36418695 DOI: 10.1007/978-1-0716-2780-8_18] [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: 11/25/2022]
Abstract
-Omics analyses, including the systematic cataloging of messenger RNA and microRNA sequences or DNA methylation patterns in a cell population, organ, or tissue sample, are powerful means of generating comprehensive genome-level data sets on complex diseases. We have systematically assessed the transcriptome, microbiome, miRNome, and methylome of gingival and peri-implant tissues from human subjects and further studied the transcriptome of primary cells ex vivo, or in vitro after infection with periodontal pathogens.Our data offer new insight on the pathophysiology underlying periodontal and peri-implant diseases, a possible route to a better and earlier diagnosis of these highly prevalent chronic inflammatory diseases and thus, to a personalized and efficient treatment approach.Herein, we outline the laboratory steps required for the processing of periodontal cells and tissues for -omics analyses using current microarrays or next-generation sequencing technology.
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Affiliation(s)
- Moritz Kebschull
- Periodontal Research Group, Institute of Clinical Sciences, College of Medical & Dental Sciences, The University of Birmingham, Birmingham, UK. .,Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, NY, USA. .,Birmingham Community Healthcare NHS Trust, Birmingham, UK.
| | - Annika Therese Kroeger
- Birmingham Community Healthcare NHS Trust, Birmingham, UK.,Department of Oral Surgery, School of Dentistry, University of Birmingham, Birmingham, UK
| | - Panos N Papapanou
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, NY, USA
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Davidovich E, Hevroni A, Gadassi LT, Spierer-Weil A, Yitschaky O, Polak D. Dental, oral pH, orthodontic and salivary values in children with obstructive sleep apnea. Clin Oral Investig 2021; 26:2503-2511. [PMID: 34677695 DOI: 10.1007/s00784-021-04218-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 10/04/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Mouth breathing is a key feature of obstructive sleep apnea (OSA). The current study evaluated dental, salivary and orthodontic characteristics of children with OSA, and compared them to those of children without OSA. MATERIALS AND METHODS Twenty-two children (mean age 5.3 years, 13 males) with OSA and 21 children without OSA who served as a control group (mean age 6.8 years, 11 males) underwent dental examinations. The OSA group was classified according to the apnea-hypopnea Index. Clinical examination included plaque index, gingival index, caries status, pH at 7 oral sites, salivary carries bacterial counts and inflammatory cytokine levels. Orthodontics measurements were calculated as the percentage of children with values in the normal range, in each group. RESULTS The mean values of the decayed, missing and filled teeth (DMFT)/dmft index, the gingival index and the plaque index were higher in the OSA than the control group. Salivary Mutans streptococci and lactobacilli counts were significantly higher in the OSA than the control group; as were pH values in the hard and soft palate, and in the posterior and middle tongue. Significantly lower values were observed in the OSA than the control group for most of the orthodontic variables examined. Similarly, stratification of AHI according to severity shows the lowest values among those with mild OSA, and the highest among those with severe AHI. CONCLUSIONS Compared to a control group, mouth breathing children with obstructive sleep apnea had differences in oral microbiota, greater acidity and poorer dental status. CLINICAL RELEVANCE Clinicians should be aware of the various oral disturbances that may accompany OSA, and implement preventive measures.
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Affiliation(s)
- E Davidovich
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel.
| | - A Hevroni
- Department of Pulmonology, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel
| | - L Tzur Gadassi
- Department of Orthodontics, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel
| | - A Spierer-Weil
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel
| | - O Yitschaky
- Department of Orthodontics, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel
| | - D Polak
- Department of Periodontology, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel
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8
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Becerra-Ruiz JS, Guerrero-Velázquez C, Martínez-Esquivias F, Martínez-Pérez LA, Guzmán-Flores JM. Innate and adaptive immunity of periodontal disease. From etiology to alveolar bone loss. Oral Dis 2021; 28:1441-1447. [PMID: 33884712 DOI: 10.1111/odi.13884] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 03/25/2021] [Accepted: 04/14/2021] [Indexed: 12/16/2022]
Abstract
Periodontal disease refers to inflammation of the tissues that support the tooth. It is of multifactorial etiology. Innate and adaptive immune cells participate jointly through the release of their molecules and mechanisms of action in order to maintain homeostasis in periodontal tissues, so the host's immune response plays an essential role in defense against microorganisms. However, bacterial persistence and the dysregulation of the immune system as an exaggerated response can lead to the worsening of periodontal disease, leading to loss of gingival tissue and alveolar bone and thereby loss of teeth. Therefore, a better understanding of the cellular mechanisms involved in the development of periodontal disease is necessary to design new treatments and prophylactic measures in order to decrease the prevalence of this disease that afflicts a large part of the world population.
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Affiliation(s)
- Julieta Saraí Becerra-Ruiz
- Doctorado en Biociencias, Centro Universitario de Los Altos, Universidad de Guadalajara, Jalisco, México
| | - Celia Guerrero-Velázquez
- Instituto de Investigación en Odontología, Centro Universitario de Ciencias de La Salud, Universidad de Guadalajara, Jalisco, México
| | | | - Luz Andrea Martínez-Pérez
- Doctorado en Biociencias, Centro Universitario de Los Altos, Universidad de Guadalajara, Jalisco, México
| | - Juan Manuel Guzmán-Flores
- Instituto de Investigación en Biociencias, Centro Universitario de Los Altos, Universidad de Guadalajara, Jalisco, México
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9
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Seidel A, Seidel CL, Weider M, Junker R, Gölz L, Schmetzer H. Influence of Natural Killer Cells and Natural Killer T Cells on Periodontal Disease: A Systematic Review of the Current Literature. Int J Mol Sci 2020; 21:E9766. [PMID: 33371393 PMCID: PMC7767411 DOI: 10.3390/ijms21249766] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 01/01/2023] Open
Abstract
Natural killer (NK) cells, as members of the innate immune system, and natural killer T (NKT) cells, bridging innate and adaptive immunity, play a prominent role in chronic inflammatory diseases and cancerogenesis, yet have scarcely been examined in oral diseases. Therefore, systematic research on the latest literature focusing on NK/NKT cell-mediated mechanisms in periodontal disease, including the time period 1988-2020, was carried out in MEDLINE (PubMed) using a predetermined search strategy, with a final selection of 25 studies. The results showed that NK cells tend to have rather proinflammatory influences via cytokine production, cytotoxic effects, dendritic-cell-crosstalk, and autoimmune reactions, while contrarily, NKT cell-mediated mechanisms were proinflammatory and immunoregulatory, ranging from protective effects via B-cell-regulation, specific antibody production, and the suppression of autoimmunity to destructive effects via cytokine production, dendritic-cell-crosstalk, and T-/B-cell interactions. Since NK cells seem to have a proinflammatory role in periodontitis, further research should focus on the proinflammatory and immunoregulatory properties of NKT cells in order to create, in addition to antibacterial strategies in dental inflammatory disease, novel anti-inflammatory therapeutic approaches modulating host immunity towards dental health.
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Affiliation(s)
- Andreas Seidel
- Dental Practice, Bahnhofstraße 10, 82223 Eichenau, Germany
| | - Corinna L. Seidel
- Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen and Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Glückstr. 11, 91054 Erlangen, Germany; (M.W.); (L.G.)
| | - Matthias Weider
- Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen and Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Glückstr. 11, 91054 Erlangen, Germany; (M.W.); (L.G.)
| | - Rüdiger Junker
- Center for Dental Prosthetics and Biomaterials, Danube Private University Krems, Steiner Landstraße 124, 3500 Krems-Stein, Austria;
| | - Lina Gölz
- Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen and Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Glückstr. 11, 91054 Erlangen, Germany; (M.W.); (L.G.)
| | - Helga Schmetzer
- Department of Medical III, University Hospital LMU Munich, Marchioninistraße 15, 81377 Munich, Germany;
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10
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Valproic acid inhibits interferon-γ production by NK cells and increases susceptibility to Listeria monocytogenes infection. Sci Rep 2020; 10:17802. [PMID: 33082490 PMCID: PMC7576816 DOI: 10.1038/s41598-020-74836-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 10/07/2020] [Indexed: 12/22/2022] Open
Abstract
Valproic acid (VPA) is a drug commonly used for epileptic seizure control. Recently, it has been shown that VPA alters the activation of several immune cells, including Natural Killer (NK) cells, which play an important role in the containment of viruses and intracellular bacteria. Although VPA can increase susceptibility to extracellular pathogens, it is unknown whether the suppressor effect of VPA could affect the course of intracellular bacterial infection. This study aimed to evaluate the role of VPA during Listeria monocytogenes (L.m) infection, and whether NK cell activation was affected. We found that VPA significantly augmented mortality in L.m infected mice. This effect was associated with increased bacterial load in the spleen, liver, and blood. Concurrently, decreased levels of IFN-γ in serum and lower splenic indexes were observed. Moreover, in vitro analysis showed that VPA treatment decreased the frequency of IFN-γ-producing NK cells within L.m infected splenocytes. Similarly, VPA inhibited the production of IFN-γ by NK cells stimulated with IL-12 and IL-18, which is a crucial system for early IFN-γ production in listeriosis. Finally, VPA decreased the phosphorylation of STAT4, p65, and p38, without affecting the expression of IL-12 and IL-18 receptors. Altogether, our results indicate that VPA increases the susceptibility to Listeria monocytogenes infection and suggest that NK cell is one of the main targets of VPA, but further work is needed to ascertain this effect.
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11
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Lutz P, Jeffery HC, Jones N, Birtwistle J, Kramer B, Nattermann J, Spengler U, Strassburg CP, Adams DH, Oo YH. NK Cells in Ascites From Liver Disease Patients Display a Particular Phenotype and Take Part in Antibacterial Immune Response. Front Immunol 2019; 10:1838. [PMID: 31440239 PMCID: PMC6694841 DOI: 10.3389/fimmu.2019.01838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 07/22/2019] [Indexed: 12/21/2022] Open
Abstract
Background and Aims: Ascites and spontaneous bacterial peritonitis (SBP) are frequent complications of liver cirrhosis. In spite of the clinical impact, knowledge about ascites as an immune cell compartment in liver disease is limited. Therefore, we analyzed NK cells in blood, ascites, and liver. Methods: Mononuclear cells from blood, ascites, and liver explants of patients with advanced liver disease were extracted by density gradient centrifugation. Phenotyping and analysis of functional responses were carried out using flow cytometry. Migratory potential was investigated with transwell chamber assays. NK cell metabolism was assessed by Seahorse technology. Results: NK cell frequency was increased in uninfected ascites compared to blood, but not to liver. Ascites NK cells were predominantly CD16positive. CD56bright ascites NK cells did not share the typical phenotype of their liver counterparts. In contrast to the inhibitory receptor NKG2A, expression of the activating receptor NKG2D was decreased on ascites and liver CD16positive NK cells. Ascites NK cells expressed higher levels of CXCR3 than blood or liver NK cells, corresponding to increased ascites levels of CXCL10. Blood NK cells migrated toward ascites. Stimulation of mononuclear cells with Escherichia coli led to downregulation of NKG2D expression and IL-12 and IL-18 mediated secretion of interferon-γ by ascites and liver, but not blood NK cells. In-vivo, ascites NK cells expressed higher levels of the activation marker CD69 and lower levels of NKG2D during SBP compared to uninfected ascites. Conclusion: Ascites NK cells display a particular phenotype and are implicated in local immune defense against translocating bacteria.
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Affiliation(s)
- Philipp Lutz
- National Institute of Health Research Liver Biomedical Research Unit Birmingham, Centre for Liver Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
- Department of Internal Medicine I, University of Bonn, Bonn, Germany
- German Center for Infection Research, University of Bonn, Bonn, Germany
| | - Hannah C. Jeffery
- National Institute of Health Research Liver Biomedical Research Unit Birmingham, Centre for Liver Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Nicholas Jones
- Swansea University Medical School, Institute of Life Science, Swansea University, Swansea, United Kingdom
| | - Jane Birtwistle
- Human Biomaterial Resource Centre, University of Birmingham, Birmingham, United Kingdom
| | - Benjamin Kramer
- Department of Internal Medicine I, University of Bonn, Bonn, Germany
- German Center for Infection Research, University of Bonn, Bonn, Germany
| | - Jacob Nattermann
- Department of Internal Medicine I, University of Bonn, Bonn, Germany
- German Center for Infection Research, University of Bonn, Bonn, Germany
| | - Ulrich Spengler
- Department of Internal Medicine I, University of Bonn, Bonn, Germany
- German Center for Infection Research, University of Bonn, Bonn, Germany
| | - Christian P. Strassburg
- Department of Internal Medicine I, University of Bonn, Bonn, Germany
- German Center for Infection Research, University of Bonn, Bonn, Germany
| | - David H. Adams
- National Institute of Health Research Liver Biomedical Research Unit Birmingham, Centre for Liver Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
- University Hospital of Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | - Ye H. Oo
- National Institute of Health Research Liver Biomedical Research Unit Birmingham, Centre for Liver Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
- University Hospital of Birmingham NHS Foundation Trust, Birmingham, United Kingdom
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12
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Campbell KS, Cohen AD, Pazina T. Mechanisms of NK Cell Activation and Clinical Activity of the Therapeutic SLAMF7 Antibody, Elotuzumab in Multiple Myeloma. Front Immunol 2018; 9:2551. [PMID: 30455698 PMCID: PMC6230619 DOI: 10.3389/fimmu.2018.02551] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 10/17/2018] [Indexed: 12/28/2022] Open
Abstract
Multiple myeloma (MM) is a bone marrow plasma cell neoplasm and is the second most-common hematologic malignancy. Despite advances in therapy, MM remains largely incurable. Elotuzumab is a humanized IgG1 monoclonal antibody targeting SLAMF7, which is highly expressed on myeloma cells, and the antibody is approved for the treatment of relapsed and/or refractory (RR) MM in combination with lenalidomide and dexamethasone. Elotuzumab can stimulate robust antibody-dependent cellular cytotoxicity (ADCC) through engaging with FcγRIIIA (CD16) on NK cells and antibody-dependent cellular phagocytosis (ADCP) by macrophages. Interestingly, SLAMF7 is also expressed on cytolytic NK cells, which also express the requisite adaptor protein, EAT-2, to mediate activation signaling. Accumulating evidence indicates that antibody crosslinking of SLAMF7 on human and mouse NK cells can stimulate EAT-2-dependent activation of PLCγ, ERK, and intracellular calcium mobilization. The binding of SLAMF7 by elotuzumab can directly induce signal transduction in human NK cells, including co-stimulation of the calcium signaling triggered through other surface receptors, such as NKp46 and NKG2D. In RRMM patients, elotuzumab monotherapy did not produce objective responses, but did enhance the activity of approved standard of care therapies, including lenalidomide or bortezomib, which are known to enhance anti-tumor responses by NK cells. Taken together, these preclinical results and accumulating experience in the clinic provide compelling evidence that the mechanism of action of elotuzumab in MM patients involves the activation of NK cells through both CD16-mediated ADCC and direct co-stimulation via engagement with SLAMF7, as well as promoting ADCP by macrophages. We review the current understanding of how elotuzumab utilizes multiple mechanisms to facilitate immune-mediated attack of myeloma cells, as well as outline goals for future research.
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Affiliation(s)
- Kerry S Campbell
- Blood Cell Development and Function Program, Fox Chase Cancer Center, Philadelphia, PA, United States
| | - Adam D Cohen
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, United States
| | - Tatiana Pazina
- Blood Cell Development and Function Program, Fox Chase Cancer Center, Philadelphia, PA, United States.,FSBSI "Institute of Experimental Medicine", St. Petersburg, Russia
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13
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The influence of KIR gene presence/absence polymorphisms on the development of periodontal disease in smokers and non-smokers. Cent Eur J Immunol 2017; 42:347-353. [PMID: 29472811 PMCID: PMC5820974 DOI: 10.5114/ceji.2017.72796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 12/30/2016] [Indexed: 12/21/2022] Open
Abstract
Introduction Periodontal diseases are highly prevalent inflammatory, multifactorial diseases. Smoking is one of the most important environmental risk factors for the development and severity of periodontal disease. Killer cell immunoglobulin-like receptors (KIRs) are members of the immunoglobulin (Ig) superfamily and play an essential role in the regulation of NK cell activity, allowing natural killer (NK) cells to sense and respond to human leukocyte antigen (HLA) class I. The aim of this study was to evaluate the influence of KIR gene presence/absence polymorphisms on the development of periodontal disease in smokers and non-smokers. Material and methods This study enrolled 400 Caucasian subjects (age range 25-69 years) from the West Pomeranian region of Poland. The subjects were categorized into four subgroups (smoking and non-smoking patients with periodontal disease; smoking and non-smoking subjects without periodontal disease - control subjects). Results The differences of KIR gene frequencies between non-smoking patients and non-smoking control subjects as well as smoking patients and control subjects were not statistically significant. In multivariate regression analysis advanced age of patients and smoking were independent factors associated with increased frequency of periodontal disease. Conclusions The results of this study suggest that the main factor associated with increased risk of periodontal disease is smoking, whereas KIR presence/absence polymorphism is not a significant factor involved in the pathogenesis of periodontal disease.
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14
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Taiete T, Viana Casarin RC, Silvério Ruiz KG, Nociti Júnior FH, Sallum EA, Casati MZ. Transcriptome of Healthy Gingival Tissue from Edentulous Sites in Patients with a History of Aggressive Periodontitis. J Periodontol 2017; 89:93-104. [DOI: 10.1902/jop.2017.170221] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 08/17/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Tiago Taiete
- Department of Periodontics - Piracicaba Dental School/State University of Campinas, Piracicaba, Brazil
- Department of Dentistry - University of Araras, Araras, Brazil
| | | | | | | | - Enilson Antônio Sallum
- Department of Periodontics - Piracicaba Dental School/State University of Campinas, Piracicaba, Brazil
| | - Marcio Zaffalon Casati
- Department of Periodontics - Piracicaba Dental School/State University of Campinas, Piracicaba, Brazil
- Department of Periodontics, Paulista University, São Paulo, SP, Brazil
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15
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Analysis of CD15, CD57 and HIF-1α in biopsies of patients with peri-implantitis. Pathol Res Pract 2017; 213:1097-1101. [PMID: 28778496 DOI: 10.1016/j.prp.2017.07.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 06/24/2017] [Accepted: 07/19/2017] [Indexed: 12/24/2022]
Abstract
Peri-implantitis is an infectious disease characterized by inflammation of the tissues surrounding the implant, bleeding on probing with or without suppuration, and bone loss. Peri-implant lesions contain a leukocyte infiltrate of plasma cells, lymphocytes, macrophages and neutrophils. A survey of the literature did not show any studies reporting an association between hypoxia and peri-implantitis. The aim of the present cross-sectional study was to evaluate histological changes and immunostaining for CD15, CD57 and HIF-1α in the peri-implant mucosa of patients with and without peri-implantitis. Mucosal biopsies were obtained from 18 patients with peri-implantitis and 10 control subjects without peri-implantitis at a private health care center between 2010 and 2012. The sections were fixed in 10% buffered formalin, processed and embedded in paraffin for histopathological and immunohistochemical study. Acanthosis, spongiosis and exocytosis were observed in both groups, with no significant difference between them. The peri-implantitis group showed increased immunostaining for CD15, a neutrophil marker, and HIF-1α, a tissue hypoxia marker, but no significant difference in immunostaining for CD57, a Natural Killer cell marker. The increase in neutrophil (CD15) and hypoxia (HIF-1α) markers in patients with peri-implantitis suggests an active participation of neutrophils and hypoxia in the pathogenesis of this disease. Since the present study was the first to evaluate the expression of CD15, CD57 and HIF-1α in peri-implant tissues, further studies should be performed to better understand the role of these molecules in peri-implantitis.
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16
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Kyaw T, Peter K, Li Y, Tipping P, Toh BH, Bobik A. Cytotoxic lymphocytes and atherosclerosis: significance, mechanisms and therapeutic challenges. Br J Pharmacol 2017; 174:3956-3972. [PMID: 28471481 DOI: 10.1111/bph.13845] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 04/02/2017] [Accepted: 04/24/2017] [Indexed: 02/06/2023] Open
Abstract
Cytotoxic lymphocytes encompass natural killer lymphocytes (cells) and cytotoxic T cells that include CD8+ T cells, natural killer (NK) T cells, γ, δ (γδ)-T cells and human CD4 + CD28- T cells. These cells play critical roles in inflammatory diseases and in controlling cancers and infections. Cytotoxic lymphocytes can be activated via a number of mechanisms that may involve dendritic cells, macrophages, cytokines or surface proteins on stressed cells. Upon activation, they secrete pro-inflammatory cytokines as well as anti-inflammatory cytokines, chemokines and cytotoxins to promote inflammation and the development of atherosclerotic lesions including vulnerable lesions, which are strongly implicated in myocardial infarctions and strokes. Here, we review the mechanisms that activate and regulate cytotoxic lymphocyte activity, including activating and inhibitory receptors, cytokines, chemokine receptors-chemokine systems utilized to home to inflamed lesions and cytotoxins and cytokines through which they affect other cells within lesions. We also examine their roles in human and mouse models of atherosclerosis and the mechanisms by which they exert their pathogenic effects. Finally, we discuss strategies for therapeutically targeting these cells to prevent the development of atherosclerotic lesions and vulnerable plaques and the challenge of developing highly targeted therapies that only minimally affect the body's immune system, avoiding the complications, such as increased susceptibility to infections, which are currently associated with many immunotherapies for autoimmune diseases. LINKED ARTICLES This article is part of a themed section on Targeting Inflammation to Reduce Cardiovascular Disease Risk. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.22/issuetoc and http://onlinelibrary.wiley.com/doi/10.1111/bcp.v82.4/issuetoc.
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Affiliation(s)
- Tin Kyaw
- Baker Heart and Diabetes Institute, Melbourne, Vic, Australia.,Department of Medicine, Monash University, Melbourne, Vic, Australia
| | - Karlheinz Peter
- Baker Heart and Diabetes Institute, Melbourne, Vic, Australia.,Department of Immunology, Monash University, Melbourne, Vic, Australia
| | - Yi Li
- Baker Heart and Diabetes Institute, Melbourne, Vic, Australia.,Department of Medicine, Monash University, Melbourne, Vic, Australia
| | - Peter Tipping
- Department of Medicine, Monash University, Melbourne, Vic, Australia
| | - Ban-Hock Toh
- Baker Heart and Diabetes Institute, Melbourne, Vic, Australia.,Department of Medicine, Monash University, Melbourne, Vic, Australia
| | - Alex Bobik
- Baker Heart and Diabetes Institute, Melbourne, Vic, Australia.,Department of Immunology, Monash University, Melbourne, Vic, Australia.,Department of Medicine, Monash University, Melbourne, Vic, Australia
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17
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Blasco-Baque V, Garidou L, Pomié C, Escoula Q, Loubieres P, Le Gall-David S, Lemaitre M, Nicolas S, Klopp P, Waget A, Azalbert V, Colom A, Bonnaure-Mallet M, Kemoun P, Serino M, Burcelin R. Periodontitis induced by Porphyromonas gingivalis drives periodontal microbiota dysbiosis and insulin resistance via an impaired adaptive immune response. Gut 2017; 66:872-885. [PMID: 26838600 PMCID: PMC5531227 DOI: 10.1136/gutjnl-2015-309897] [Citation(s) in RCA: 188] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 12/18/2015] [Indexed: 01/11/2023]
Abstract
OBJECTIVE To identify a causal mechanism responsible for the enhancement of insulin resistance and hyperglycaemia following periodontitis in mice fed a fat-enriched diet. DESIGN We set-up a unique animal model of periodontitis in C57Bl/6 female mice by infecting the periodontal tissue with specific and alive pathogens like Porphyromonas gingivalis (Pg), Fusobacterium nucleatum and Prevotella intermedia. The mice were then fed with a diabetogenic/non-obesogenic fat-enriched diet for up to 3 months. Alveolar bone loss, periodontal microbiota dysbiosis and features of glucose metabolism were quantified. Eventually, adoptive transfer of cervical (regional) and systemic immune cells was performed to demonstrate the causal role of the cervical immune system. RESULTS Periodontitis induced a periodontal microbiota dysbiosis without mainly affecting gut microbiota. The disease concomitantly impacted on the regional and systemic immune response impairing glucose metabolism. The transfer of cervical lymph-node cells from infected mice to naive recipients guarded against periodontitis-aggravated metabolic disease. A treatment with inactivated Pg prior to the periodontal infection induced specific antibodies against Pg and protected the mouse from periodontitis-induced dysmetabolism. Finally, a 1-month subcutaneous chronic infusion of low rates of lipopolysaccharides from Pg mimicked the impact of periodontitis on immune and metabolic parameters. CONCLUSIONS We identified that insulin resistance in the high-fat fed mouse is enhanced by pathogen-induced periodontitis. This is caused by an adaptive immune response specifically directed against pathogens and associated with a periodontal dysbiosis.
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Affiliation(s)
- Vincent Blasco-Baque
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France,Faculté de Chirurgie-Dentaire de Toulouse, Technical platform of Research in Odontology, Toulouse Cedex 09, France
| | - Lucile Garidou
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Céline Pomié
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Quentin Escoula
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Pascale Loubieres
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France,Faculté de Chirurgie-Dentaire de Toulouse, Technical platform of Research in Odontology, Toulouse Cedex 09, France
| | | | - Mathieu Lemaitre
- Faculté de Chirurgie-Dentaire de Toulouse, Technical platform of Research in Odontology, Toulouse Cedex 09, France
| | - Simon Nicolas
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Pascale Klopp
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Aurélie Waget
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Vincent Azalbert
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - André Colom
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | | | - Philippe Kemoun
- Faculté de Chirurgie-Dentaire de Toulouse, Technical platform of Research in Odontology, Toulouse Cedex 09, France
| | - Matteo Serino
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
| | - Rémy Burcelin
- INSERM U1048, Toulouse, France,Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Toulouse, France,Université Paul Sabatier (UPS), Toulouse, France
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18
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Natural Killer Cells in the Orchestration of Chronic Inflammatory Diseases. J Immunol Res 2017; 2017:4218254. [PMID: 28428965 PMCID: PMC5385901 DOI: 10.1155/2017/4218254] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 01/04/2017] [Accepted: 01/18/2017] [Indexed: 02/06/2023] Open
Abstract
Inflammation, altered immune cell phenotype, and functions are key features shared by diverse chronic diseases, including cardiovascular, neurodegenerative diseases, diabetes, metabolic syndrome, and cancer. Natural killer cells are innate lymphoid cells primarily involved in the immune system response to non-self-components but their plasticity is largely influenced by the pathological microenvironment. Altered NK phenotype and function have been reported in several pathological conditions, basically related to impaired or enhanced toxicity. Here we reviewed and discussed the role of NKs in selected, different, and “distant” chronic diseases, cancer, diabetes, periodontitis, and atherosclerosis, placing NK cells as crucial orchestrator of these pathologic conditions.
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19
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Kebschull M, Hülsmann C, Hoffmann P, Papapanou PN. Genome-Wide Analysis of Periodontal and Peri-Implant Cells and Tissues. Methods Mol Biol 2017; 1537:307-326. [PMID: 27924602 PMCID: PMC6554644 DOI: 10.1007/978-1-4939-6685-1_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
Omics analyses, including the systematic cataloging of messenger RNA and microRNA sequences or DNA methylation patterns in a cell population, organ or tissue sample, are powerful means of generating comprehensive genome-level data sets on complex diseases. We have systematically assessed the transcriptome, miRNome and methylome of gingival tissues from subjects with different diagnostic entities of periodontal disease, and studied the transcriptome of primary cells ex vivo, or in vitro after infection with periodontal pathogens. Our data further our understanding of the pathobiology of periodontal diseases and indicate that the gingival -omes translate into discernible phenotypic characteristics and possibly support an alternative, "molecular" classification of periodontitis.Here, we outline the laboratory steps required for the processing of periodontal cells and tissues for -omics analyses using current microarrays or next-generation sequencing technology.
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Affiliation(s)
- Moritz Kebschull
- Department of Periodontology, Operative and Preventive Dentistry, Faculty of Medicine, University of Bonn, Welschnonnenstr. 17, Bonn, D-53111, Germany.
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, NY, USA.
| | - Claudia Hülsmann
- Department of Periodontology, Operative and Preventive Dentistry, Faculty of Medicine, University of Bonn, Welschnonnenstr. 17, Bonn, D-53111, Germany
| | - Per Hoffmann
- Department of Genomics, Institute of Human Genetics, University of Bonn, Bonn, Germany
- Human Genomics Research Group, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Panos N Papapanou
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, NY, USA
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20
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Kebschull M, Fittler MJ, Demmer RT, Papapanou PN. Differential Expression and Functional Analysis of High-Throughput -Omics Data Using Open Source Tools. Methods Mol Biol 2017; 1537:327-345. [PMID: 27924603 DOI: 10.1007/978-1-4939-6685-1_19] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Today, -omics analyses, including the systematic cataloging of messenger RNA and microRNA sequences or DNA methylation patterns in a cell population, organ, or tissue sample, allow for an unbiased, comprehensive genome-level analysis of complex diseases, offering a large advantage over earlier "candidate" gene or pathway analyses. A primary goal in the analysis of these high-throughput assays is the detection of those features among several thousand that differ between different groups of samples. In the context of oral biology, our group has successfully utilized -omics technology to identify key molecules and pathways in different diagnostic entities of periodontal disease.A major issue when inferring biological information from high-throughput -omics studies is the fact that the sheer volume of high-dimensional data generated by contemporary technology is not appropriately analyzed using common statistical methods employed in the biomedical sciences.In this chapter, we outline a robust and well-accepted bioinformatics workflow for the initial analysis of -omics data generated using microarrays or next-generation sequencing technology using open-source tools. Starting with quality control measures and necessary preprocessing steps for data originating from different -omics technologies, we next outline a differential expression analysis pipeline that can be used for data from both microarray and sequencing experiments, and offers the possibility to account for random or fixed effects. Finally, we present an overview of the possibilities for a functional analysis of the obtained data.
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Affiliation(s)
- Moritz Kebschull
- Department of Periodontology, Operative and Preventive Dentistry, Faculty of Medicine, University of Bonn, Welschnonnenstr. 17, Bonn, D-53111, Germany. .,Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, NY, USA.
| | - Melanie Julia Fittler
- Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Welschnonnenstr. 17, Bonn, D-53111, Germany
| | - Ryan T Demmer
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Panos N Papapanou
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, NY, USA
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21
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Porphyromonas gingivalis Lipopolysaccharide Induced Proliferation and Activation of Natural Killer Cells in Vivo. Molecules 2016; 21:molecules21081086. [PMID: 27548133 PMCID: PMC6273780 DOI: 10.3390/molecules21081086] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 08/15/2016] [Accepted: 08/16/2016] [Indexed: 01/05/2023] Open
Abstract
Porphyromonas gingivalis (P. gingivalis) lipopolysaccharide (LPS) promoted different innate immune activation than that promoted by Escherichia coli (E. coli) LPS. In this study, we examined the effect of P. gingivalis LPS on the proliferation and activation of natural killer (NK) cells in vivo and compared that function with that of E. coli LPS. Administration of P. gingivalis LPS to C57BL/6 mice induced stronger proliferation of NK cells in the spleen and submandibular lymph nodes (sLNs) and increased the number of circulating NK cells in blood compared to those treated with E. coli LPS. However, P. gingivalis LPS did not induce interferon-gamma (IFN-γ) production and CD69 expression in the spleen and sLN NK cells in vivo, and this was attributed to the minimal activation of the spleen and sLN dendritic cells (DCs), including low levels of co-stimulatory molecule expression and pro-inflammatory cytokine production. Furthermore, P. gingivalis LPS-treated NK cells showed less cytotoxic activity against Yac-1 target cells than E. coli LPS-treated NK cells. Hence, these data demonstrated that P. gingivalis LPS promoted limited activation of spleen and sLN NK cells in vivo, and this may play a role in the chronic inflammatory state observed in periodontal disease.
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22
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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: 52] [Impact Index Per Article: 5.8] [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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23
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Wilensky A, Chaushu S, Shapira L. The role of natural killer cells in periodontitis. Periodontol 2000 2015; 69:128-41. [DOI: 10.1111/prd.12092] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2015] [Indexed: 12/29/2022]
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24
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Kebschull M, Demmer RT, Grün B, Guarnieri P, Pavlidis P, Papapanou PN. Gingival tissue transcriptomes identify distinct periodontitis phenotypes. J Dent Res 2014; 93:459-68. [PMID: 24646639 DOI: 10.1177/0022034514527288] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The currently recognized principal forms of periodontitis-chronic and aggressive-lack an unequivocal, pathobiology-based foundation. We explored whether gingival tissue transcriptomes can serve as the basis for an alternative classification of periodontitis. We used cross-sectional whole-genome gene expression data from 241 gingival tissue biopsies obtained from sites with periodontal pathology in 120 systemically healthy nonsmokers with periodontitis, with available data on clinical periodontal status, subgingival microbial profiles, and serum IgG antibodies to periodontal microbiota. Adjusted model-based clustering of transcriptomic data using finite mixtures generated two distinct clusters of patients that did not align with the current classification of chronic and aggressive periodontitis. Differential expression profiles primarily related to cell proliferation in cluster 1 and to lymphocyte activation and unfolded protein responses in cluster 2. Patients in the two clusters did not differ with respect to age but presented with distinct phenotypes (statistically significantly different whole-mouth clinical measures of extent/severity, subgingival microbial burden by several species, and selected serum antibody responses). Patients in cluster 2 showed more extensive/severe disease and were more often male. The findings suggest that distinct gene expression signatures in pathologic gingival tissues translate into phenotypic differences and can provide a basis for a novel classification.
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Affiliation(s)
- M Kebschull
- Division of Periodontics, Section of Oral and Diagnostic Sciences, College of Dental Medicine, Columbia University, New York, NY, USA
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25
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Kebschull M, Guarnieri P, Demmer RT, Boulesteix AL, Pavlidis P, Papapanou PN. Molecular differences between chronic and aggressive periodontitis. J Dent Res 2013; 92:1081-8. [PMID: 24122488 DOI: 10.1177/0022034513506011] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The 2 major forms of periodontitis, chronic (CP) and aggressive (AgP), do not display sufficiently distinct histopathological characteristics or microbiological/immunological features. We used molecular profiling to explore biological differences between CP and AgP and subsequently carried out supervised classification using machine-learning algorithms including an internal validation. We used whole-genome gene expression profiles from 310 'healthy' or 'diseased' gingival tissue biopsies from 120 systemically healthy non-smokers, 65 with CP and 55 with AgP, each contributing with ≥ 2 'diseased' gingival papillae (n = 241; with bleeding-on-probing, probing depth ≥ 4 mm, and clinical attachment loss ≥ 3 mm), and, when available, a 'healthy' papilla (n = 69; no bleeding-on-probing, probing depth ≤ 4 mm, and clinical attachment loss ≤ 4 mm). Our analyses revealed limited differences between the gingival tissue transcriptional profiles of AgP and CP, with genes related to immune responses, apoptosis, and signal transduction overexpressed in AgP, and genes related to epithelial integrity and metabolism overexpressed in CP. Different classifying algorithms discriminated CP from AgP with an area under the curve ranging from 0.63 to 0.99. The small differences in gene expression and the highly variable classifier performance suggest limited dissimilarities between established AgP and CP lesions. Future analyses may facilitate the development of a novel, 'intrinsic' classification of periodontitis based on molecular profiling.
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Affiliation(s)
- M Kebschull
- Division of Periodontics, Section of Oral and Diagnostic Sciences, Columbia University College of Dental Medicine, New York, NY, USA
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Li Y, Cao G, Zheng X, Wang J, Wei H, Tian Z, Sun R. CRACC-CRACC interaction between Kupffer and NK cells contributes to poly I:C/D-GalN induced hepatitis. PLoS One 2013; 8:e76681. [PMID: 24098802 PMCID: PMC3786926 DOI: 10.1371/journal.pone.0076681] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Accepted: 08/23/2013] [Indexed: 12/14/2022] Open
Abstract
CD2-like receptor activating cytotoxic cells (CRACC) is known as a critical activating receptor of natural killer (NK) cells. We have previously reported that NK cells contribute to Poly I:C/D-galactosamine (D-GalN)-induced fulminant hepatitis. Since natural killer group 2, member D (NKG2D) is considered critical but not the only activating receptor for NK cells, we investigated the role of CRACC in this model. We found that CRACC was abundant on hepatic NK cells but with low expression levels on Kupffer cells under normal conditions. Expression of CRACC on NK cells and Kupffer cells was remarkably upregulated after poly I:C injection. Hepatic CRACC mRNA levels were also upregulated in Poly I:C/D-GalN-treated mice, and correlated positively with the serum alanine aminotransferase (ALT) levels. CRACC expression on Kupffer cells was specifically silenced by nano-particle encapsulated siRNA in vivo, which significantly reduced Poly I:C/D-GalN-induced liver injury. In co-culture experiments, it was further verified that silencing CRACC expression or blockade of CRACC activation by mAb reduced the production of interferon (IFN)-γ and tumor necrosis factor (TNF)-α. Collectively, our findings suggest that CRACC-CRACC interaction between NK cells and resident Kupffer cells contributes to Poly I:C/D-GalN-induced fulminant hepatitis.
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Affiliation(s)
- Yangxi Li
- Department of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Guoshuai Cao
- Department of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Xiaodong Zheng
- Department of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Jun Wang
- Department of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui, China
| | - Haiming Wei
- Department of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui, China
| | - Zhigang Tian
- Department of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui, China
| | - Rui Sun
- Department of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui, China
- * E-mail:
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