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Zhou Y, Meyle J, Groeger S. Periodontal pathogens and cancer development. Periodontol 2000 2024. [PMID: 38965193 DOI: 10.1111/prd.12590] [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: 01/23/2024] [Revised: 05/03/2024] [Accepted: 06/11/2024] [Indexed: 07/06/2024]
Abstract
Increasing evidence suggests a significant association between periodontal disease and the occurrence of various cancers. The carcinogenic potential of several periodontal pathogens has been substantiated in vitro and in vivo. This review provides a comprehensive overview of the diverse mechanisms employed by different periodontal pathogens in the development of cancer. These mechanisms induce chronic inflammation, inhibit the host's immune system, activate cell invasion and proliferation, possess anti-apoptotic activity, and produce carcinogenic substances. Elucidating these mechanisms might provide new insights for developing novel approaches for tumor prevention, therapeutic purposes, and survival improvement.
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Affiliation(s)
- Yuxi Zhou
- Department of Periodontology, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Joerg Meyle
- Department of Periodontology, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Sabine Groeger
- Department of Periodontology, Justus-Liebig-University of Giessen, Giessen, Germany
- Department of Orthodontics, Justus-Liebig-University of Giessen, Giessen, Germany
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2
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Somay E, Bascil S, Ozturk D, Topkan E. Periodontitis can negatively impact the survival outcomes of cancer patients. ORAL ONCOLOGY REPORTS 2024; 10:100519. [DOI: 10.1016/j.oor.2024.100519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/27/2024]
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3
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Kaliamoorthy S, Priya Sayeeram S, Gowdhaman N, Jayaraj M, Radhika B, Chellapandi S, Elumalai A, Archana SP, Raju K, Palla S. Association of Periodontal Red Complex Bacteria With the Incidence of Gastrointestinal Cancers: A Systematic Review and Meta-Analysis. Cureus 2024; 16:e59251. [PMID: 38813341 PMCID: PMC11134483 DOI: 10.7759/cureus.59251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 04/29/2024] [Indexed: 05/31/2024] Open
Abstract
Porphyromonas gingivalis is the primary microbe in the "periodontal red complex" bacteria (PRCB) along with Tannerella forsythia and Treponema denticola, which are linked to periodontal disease (PD). These pathogens are also implicated in various systemic disorders, but their association with the incidence of gastrointestinal (GI) cancer is less explored. A systematic review followed by a meta-analysis was conducted as per standard guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) 2022) to find this association between GI cancers and PRCB after a literature search for full-text papers in the English language (between 2010 and 2023) in databases (Cochrane Library, PubMed, and Web of Science) with suitable keywords using the Boolean search strategy. Data extraction involved titles, abstracts, and full texts retrieved and scored by the modified Newcastle-Ottawa Scale. The data were analyzed by the Review Manager (RevMan 5.2, Cochrane Collaboration, Denmark). Standard Cochran Q test and I2 statistics (for heterogeneity) and a random effects model (pooled OR with 95% CI) were applied to report results. P. gingivalis among the PRCB was linked to GI cancers (OR: 2.16; 95% CI: 1.34-3.47). T. forsythia and T. denticola did not show meaningful associations as per existing evidence for GI cancers.
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Affiliation(s)
- Sriram Kaliamoorthy
- Department of Dentistry, Vinayaka Missions Medical College and Hospital, Vinayaka Missions Research Foundation, Karaikal, IND
| | - Sugantha Priya Sayeeram
- Department of Prosthodontics, Government Dental College and Hospital, The Tamil Nadu Dr. MGR Medical University, Pudukkottai, IND
| | - N Gowdhaman
- Departmentof Physiology, Dhanalakshmi Srinivasan Medical College and Hospital, The Tamil Nadu Dr. MGR Medical University, Perambalur, IND
| | - Merlin Jayaraj
- Department of Oral and Maxillofacial Pathology, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - B Radhika
- Department of Periodontics, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - Sugirtha Chellapandi
- Department of Periodontics, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - Agila Elumalai
- Department of Periodontics, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - Sai P Archana
- Department of Oral Medicine and Radiology, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - Kanmani Raju
- Department of Oral Medicine and Radiology, Chettinad Dental College and Research Institute, The Tamil Nadu Dr. MGR Medical University, Chennai, IND
| | - Santosh Palla
- Department of Oral Medicine and Radiology, Sun Dental Care, Chennai, IND
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4
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Wang B, Deng J, Donati V, Merali N, Frampton AE, Giovannetti E, Deng D. The Roles and Interactions of Porphyromonas gingivalis and Fusobacterium nucleatum in Oral and Gastrointestinal Carcinogenesis: A Narrative Review. Pathogens 2024; 13:93. [PMID: 38276166 PMCID: PMC10820765 DOI: 10.3390/pathogens13010093] [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: 12/03/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024] Open
Abstract
Epidemiological studies have spotlighted the intricate relationship between individual oral bacteria and tumor occurrence. Porphyromonas gingivalis and Fusobacteria nucleatum, which are known periodontal pathogens, have emerged as extensively studied participants with potential pathogenic abilities in carcinogenesis. However, the complex dynamics arising from interactions between these two pathogens were less addressed. This narrative review aims to summarize the current knowledge on the prevalence and mechanism implications of P. gingivalis and F. nucleatum in the carcinogenesis of oral squamous cell carcinoma (OSCC), colorectal cancer (CRC), and pancreatic ductal adenocarcinoma (PDAC). In particular, it explores the clinical and experimental evidence on the interplay between P. gingivalis and F. nucleatum in affecting oral and gastrointestinal carcinogenesis. P. gingivalis and F. nucleatum, which are recognized as keystone or bridging bacteria, were identified in multiple clinical studies simultaneously. The prevalence of both bacteria species correlated with cancer development progression, emphasizing the potential impact of the collaboration. Regrettably, there was insufficient experimental evidence to demonstrate the synergistic function. We further propose a hypothesis to elucidate the underlying mechanisms, offering a promising avenue for future research in this dynamic and evolving field.
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Affiliation(s)
- Bing Wang
- Department of Medical Oncology, Amsterdam University Medical Center, Cancer Center Amsterdam, Vrije Universiteit, 1081 HV Amsterdam, The Netherlands; (B.W.); (J.D.); (V.D.); (E.G.)
| | - Juan Deng
- Department of Medical Oncology, Amsterdam University Medical Center, Cancer Center Amsterdam, Vrije Universiteit, 1081 HV Amsterdam, The Netherlands; (B.W.); (J.D.); (V.D.); (E.G.)
| | - Valentina Donati
- Department of Medical Oncology, Amsterdam University Medical Center, Cancer Center Amsterdam, Vrije Universiteit, 1081 HV Amsterdam, The Netherlands; (B.W.); (J.D.); (V.D.); (E.G.)
- Unit of Pathological Anatomy 2, Azienda Ospedaliero-Universitaria Pisana, 56100 Pisa, Italy
| | - Nabeel Merali
- Minimal Access Therapy Training Unit (MATTU), Royal Surrey County Hospital, NHS Foundation Trust, Egerton Road, Guildford GU2 7XX, UK; (N.M.); (A.E.F.)
- Department of Hepato-Pancreato-Biliary (HPB) Surgery, Royal Surrey County Hospital, NHS Foundation Trust, Egerton Road, Guildford GU2 7XX, UK
- Section of Oncology, Department of Clinical and Experimental Medicine, Faculty of Health Medical Science, University of Surrey, Guilford GU2 7WG, UK
| | - Adam E. Frampton
- Minimal Access Therapy Training Unit (MATTU), Royal Surrey County Hospital, NHS Foundation Trust, Egerton Road, Guildford GU2 7XX, UK; (N.M.); (A.E.F.)
- Department of Hepato-Pancreato-Biliary (HPB) Surgery, Royal Surrey County Hospital, NHS Foundation Trust, Egerton Road, Guildford GU2 7XX, UK
- Section of Oncology, Department of Clinical and Experimental Medicine, Faculty of Health Medical Science, University of Surrey, Guilford GU2 7WG, UK
| | - Elisa Giovannetti
- Department of Medical Oncology, Amsterdam University Medical Center, Cancer Center Amsterdam, Vrije Universiteit, 1081 HV Amsterdam, The Netherlands; (B.W.); (J.D.); (V.D.); (E.G.)
- Fondazione Pisana per la Scienza, 56100 Pisa, Italy
| | - Dongmei Deng
- Department of Prevention Dentistry, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universitreit Amsterdam, 1081 LA Amsterdam, The Netherlands
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5
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Oh JM, Kim H. The effect of oral bacterial infection on DNA damage response in host cells. Am J Cancer Res 2023; 13:3157-3168. [PMID: 37559975 PMCID: PMC10408462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 06/29/2023] [Indexed: 08/11/2023] Open
Abstract
Maintaining and transferring intact genomes from one generation to another plays a pivotal role in all living organisms. DNA damage caused by numerous endogenous and exogenous factors must be adequately repaired, as unrepaired and accumulated DNA mutations can cause severe deleterious effects, such as cell death and cancer. To prevent adverse consequences, cells have established DNA damage response mechanisms that address different forms of DNA damage, including DNA double-strand breaks, mismatches, nucleotide excision, and base excision. Among several sources of exogenous DNA damage, bacterial infections cause inflammation in the host, generating reactive oxygen species (ROS) and causing oxidative DNA damage. Recent studies have revealed the importance of the oral microbiome in inflammation and several systemic host diseases. Dysbiosis of oral bacteria can induce chronic inflammation, which enhances ROS-induced DNA damage, and improperly repaired damage can lead to carcinogenesis. This review describes the various DNA repair pathways that are affected by chronic inflammation and the discovery of the DNA damage response induced by oral bacteria such as Porphyromonas gingivalis and Fusobacterium nucleatum.
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Affiliation(s)
- Jung-Min Oh
- Department of Oral Biochemistry, Dental and Life Science Institute, School of Dentistry, Pusan National UniversityYangsan 50612, Republic of Korea
- Department of Life Science in Dentistry, School of Dentistry, Pusan National UniversityYangsan 50612, Republic of Korea
| | - Hongtae Kim
- Department of Life Sciences, Ulsan National Institute of Science and Technology (UNIST)Ulsan 44919, Republic of Korea
- Center for Genomic Integrity Institute for Basic Science (IBS), UNISTUlsan 44919, Republic of Korea
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Liu X, Yang L, Tan X. PD-1/PD-L1 pathway: A double-edged sword in periodontitis. Biomed Pharmacother 2023; 159:114215. [PMID: 36630848 DOI: 10.1016/j.biopha.2023.114215] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/26/2022] [Accepted: 01/04/2023] [Indexed: 01/10/2023] Open
Abstract
Periodontitis is a disease caused by infection and immunological imbalance, which often leads to the destruction of periodontal tissue. Programmed death protein 1 (PD-1) and its ligand: programmed death ligand 1 (PD-L1) are important "immune checkpoint" proteins that have a negative regulatory effect on T cells and are targets of immunotherapy. Studies have shown that the expression of PD-1 and PD-L1 in patients with periodontitis is higher than that in healthy individuals. The keystone pathogen Porphyromonas gingivalis (P. gingivalis) is believed to be the main factor driving the upregulation of PD-1/PD-L1. High expression of PD-1/PD-L1 can inhibit the inflammatory response and reduce the destruction of periodontal supporting tissues, but conversely, it can promote the "immune escape" of P. gingivalis, thus magnifying infections. In addition, the PD-1/PD-L1 pathway is also associated with various diseases, such as cancer and Alzheimer's disease. In this review, we discuss the influence and mechanism of the PD-1/PD-L1 pathway as a "double-edged sword" affecting the occurrence and development of periodontitis, as well as its function in periodontitis-related systemic disorders. The PD-1/PD-L1 pathway could be a new avenue for periodontal and its related systemic disorders therapy.
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Affiliation(s)
- Xiaowei Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Lei Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Xuelian Tan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
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Ungureanu BS, Gheorghe DN, Nicolae FM, Râmboiu S, Radu PA, Șurlin VM, Strâmbu VDE, Gheonea DI, Roman A, Șurlin P. Could there be an interplay between periodontal changes and pancreatic malignancies? World J Clin Cases 2023; 11:545-555. [PMID: 36793639 PMCID: PMC9923858 DOI: 10.12998/wjcc.v11.i3.545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/19/2022] [Accepted: 01/10/2023] [Indexed: 01/23/2023] Open
Abstract
The term "periodontal disease" refers to a group of chronic inflammatory illnesses caused by specific microorganisms from subgingival biofilm, that affect the tooth-supporting tissues. Recent research has also shown that periodontal infection plays a role in aggravating systemic disease states at distal sites, reinforcing the significance of the oral cavity for general health. Additionally, it has been suggested that gastroenterological malignancies may be promoted by hematogenous, enteral or lymphatic translocation of periopathogens. In the past 25 years, the global burden of pancreatic cancer (PC) has more than doubled, making it one of the major causes of cancer-related mortality. Periodontitis has been linked to at least 50% increased risk of PC and it could be considered a risk factor for this malignancy. A recent study performed on 59000 African American women with a follow up of 21 years showed that participants who had poor dental health had higher chances of PC. The findings, according to researchers, might be related to the inflammation that some oral bacteria trigger. Regarding the mortality of PC, periodontitis considerably raises the chance of dying from PC. Microbiome alterations in the gut, oral cavity and pancreatic tissues of PC patients occur when compared to healthy flora, demonstrating a link between PC and microecology. Inflammation may also contribute to PC development, although the underlying pathway is not yet known. The function of the microbiome in PC risk has drawn more focus over the last decade. Future risk of PC has been linked to the oral microbiome, specifically increased levels of Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans and decreased relative abundance of Leptotrichia and Fusobacteria, suggesting that it may have an impact on the inflammatory condition by expanding, altering, and regulating the commensal microbiome. Patients who received periodontal treatment had significantly decreased incidence rate ratios for PC. By analyzing patterns in the microbiome composition throughout PC development and establishing strategies to enhance the cancer-associated microbial system, we can increase the efficacy of therapy and eventually find an application for the microbial system. The development of immunogenomics and gut micro-genomics in the life sciences will result in a significant advancement in our understanding of how microbial systems and immunotherapy interact, and it may also have intriguing therapeutic implications for extending the lifetime of PC patients.
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Affiliation(s)
- Bogdan Silviu Ungureanu
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, Craiova 200349, Romania
| | - Dorin Nicolae Gheorghe
- Department of Periodontology, Research Center of Periodontal-Systemic Implications, University of Medicine and Pharmacy of Craiova, Craiova 200349, Romania
| | - Flavia Mirela Nicolae
- Department of Periodontology, Research Center of Periodontal-Systemic Implications, University of Medicine and Pharmacy of Craiova, Craiova 200349, Romania
| | - Sandu Râmboiu
- Department 1st of Surgery, University of Medicine and Pharmacy of Craiova, Craiova 200349, Romania
| | - Petru Adrian Radu
- Department of General Surgery, “Carol Davila” University of Medicine and Pharmacy, Bucharest 020021, Romania
| | - Valeriu Marin Șurlin
- Department 1st of Surgery, University of Medicine and Pharmacy of Craiova, Craiova 200349, Romania
| | - Victor Dan Eugen Strâmbu
- Department of General Surgery, “Carol Davila” University of Medicine and Pharmacy, Bucharest 020021, Romania
| | - Dan Ionut Gheonea
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, Craiova 200349, Romania
| | - Alexandra Roman
- Department of Periodontology, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca 400012, Romania
| | - Petra Șurlin
- Department of Periodontology, Research Center of Periodontal-Systemic Implications, University of Medicine and Pharmacy of Craiova, Craiova 200349, Romania
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Gastric bacteria as potential biomarkers for the diagnosis of atrophic gastritis. Mol Biol Rep 2023; 50:655-664. [PMID: 36371556 DOI: 10.1007/s11033-022-08001-z] [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: 07/17/2022] [Accepted: 10/03/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND Identification of the risk factors for atrophic gastritis (AG) and prevention of further deterioration of the gastritis are effective approaches to reduce the incidence of gastric cancer. Previous studies found that dysbiosis has been implicated in a wide range of diseases, while the role of gastric bacteria as a biomarker for AG has not been explored. METHODS AND RESULTS Gastric juices from cases with non-atrophic gastritis (NAG) and AG were collected for investigation of bacterial composition and function. The β-diversity of microbiota exhibited a significant reduction in AG samples compared with that in NAG samples. Differential abundance analysis revealed that a total of 23 predicted species changed their distributions; meanwhile, all obligate anaerobic bacteria with a relatively high abundance lowered their contents in AG samples. Additionally, the correlation analysis indicated a clear shift in bacterial correlation pattern between the two groups. Functional interrogation of the gastric microbiota showed that bacterial metabolisms associated with enzyme families, digestive system, and endocrine system were downregulated in AG samples. The compositional dissection of "core microbiota" exhibited that oral pathogens, including Porphyromonas gingivalis, Campylobacter gracilis, and Granulicatella elegans, were magnified in AG samples, suggesting that oral diseases may be a trigger factor for early exacerbation of gastritis. Then, the differentially expressed bacteria were used as diagnostic biomarkers for the random forest classifier model for group prediction. CONCLUSIONS The results showed that bacterial biomarkers could distinguish AG patients from NAG cases with an accuracy of 90% at the genus level.
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Kudra A, Muszyński D, Sobocki BK, Atzeni A, Carbone L, Kaźmierczak-Siedlecka K, Połom K, Kalinowski L. Insights into oral microbiome and colorectal cancer - on the way of searching new perspectives. Front Cell Infect Microbiol 2023; 13:1159822. [PMID: 37124035 PMCID: PMC10130407 DOI: 10.3389/fcimb.2023.1159822] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/28/2023] [Indexed: 05/02/2023] Open
Abstract
Microbiome is a keystone polymicrobial community that coexist with human body in a beneficial relationship. These microorganisms enable the human body to maintain homeostasis and take part in mechanisms of defense against infection and in the absorption of nutrients. Even though microbiome is involved in physiologic processes that are beneficial to host health, it may also cause serious detrimental issues. Additionally, it has been proven that bacteria can migrate to other human body compartments and colonize them even although significant structural differences with the area of origin exist. Such migrations have been clearly observed when the causes of genesis and progression of colorectal cancer (CRC) have been investigated. It has been demonstrated that the oral microbiome is capable of penetrating into the large intestine and cause impairments leading to dysbiosis and stimulation of cancerogenic processes. The main actors of such events seem to be oral pathogenic bacteria belonging to the red and orange complex (regarding classification of bacteria in the context of periodontal diseases), such as Porphyromonas gingivalis and Fusobacterium nucleatum respectively, which are characterized by significant amount of cancerogenic virulence factors. Further examination of oral microbiome and its impact on CRC may be crucial on early detection of this disease and would allow its use as a precise non-invasive biomarker.
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Affiliation(s)
- Anna Kudra
- Scientific Circle of Studies Regarding Personalized Medicine Associated with Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Gdansk, Poland
| | - Damian Muszyński
- Scientific Circle of Studies Regarding Personalized Medicine Associated with Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Gdansk, Poland
| | - Bartosz Kamil Sobocki
- Scientific Circle of Oncology and Radiotherapy, Medical University of Gdansk, Gdansk, Poland
| | - Alessandro Atzeni
- Institut d’Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició, Reus, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Institute of Health Carlos III, Madrid, Spain
| | - Ludovico Carbone
- Department of Medicine Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Karolina Kaźmierczak-Siedlecka
- Department of Medical Laboratory Diagnostics – Fahrenheit Biobank BBMRI.pl, Medical University of Gdansk, Gdansk, Poland
- *Correspondence: Karolina Kaźmierczak-Siedlecka,
| | - Karol Połom
- Department of Surgical Oncology, Medical University of Gdansk, Gdansk, Poland
| | - Leszek Kalinowski
- Department of Medical Laboratory Diagnostics – Fahrenheit Biobank BBMRI.pl, Medical University of Gdansk, Gdansk, Poland
- BioTechMed Centre, Department of Mechanics of Materials and Structures, University of Technology, Gdansk, Poland
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Jia X, Liu J, He Y, Huang X. Porphyromonas gingivalis secretion leads to dysplasia of normal esophageal epithelial cells via the Sonic hedgehog pathway. Front Cell Infect Microbiol 2022; 12:982636. [PMID: 36262185 PMCID: PMC9573957 DOI: 10.3389/fcimb.2022.982636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/16/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives To investigate the pathogenic effect of Porphyromonas gingivalis cultured media on the esophagus and the mechanism underlying the effect. Background Periodontitis is strongly associated with esophageal squamous cell carcinoma (ESCC). The cultured media of P. gingivalis may act on healthy esophagus to trigger a malignant transformation; however, this has not been confirmed. Methods Cell migration assays and cell cycle measurements were performed on normal human esophageal epithelial cells in the presence or absence of P. gingivalis cultured media. The esophagi of healthy adult C57BL/6J mice were isolated and cultured in-vitro. Hematoxylin-eosin and immunohistochemical staining using antibodies against proliferating cell nuclear antigen (PCNA), Claudin 1 and Claudin 4 were performed to detect dysplasia in specific tissues. Total mRNA was extracted to determine transcriptional dysregulation. A specific inhibitor of Sonic hedgehog signaling, cyclopamine, was used to confirm the underlying molecular mechanism. Results In the presence of P. gingivalis cultured media, proliferation and migration of normal human esophageal epithelial cells were up-regulated, and aneuploid cells appeared. Compared with control cells, the arrangement of mouse esophageal epithelial cells became disordered, the percentage of PCNA-positive cells increased, and the positive staining of Claudin 1 and Claudin 4 became weak. In addition, the expression of cancer-related pathway genes was up-regulated but tight junction-related gene expression was down-regulated. The Sonic hedgehog pathway was abnormally activated, and its inhibition reduced the pathogenic effect of P. gingivalis cultured media. Conclusions We revealed that the cultured media of the key periodontal pathogen, P. gingivalis, can induce the malignant transformation of normal esophageal epithelium through the Sonic hedgehog pathway.
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Affiliation(s)
- Xueting Jia
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jinan Liu
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yinxue He
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Xiaofeng Huang
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- *Correspondence: Xiaofeng Huang,
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11
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Bartolini I, Nannini G, Risaliti M, Matarazzo F, Moraldi L, Ringressi MN, Taddei A, Amedei A. Impact of microbiota-immunity axis in pancreatic cancer management. World J Gastroenterol 2022; 28:4527-4539. [PMID: 36157926 PMCID: PMC9476869 DOI: 10.3748/wjg.v28.i32.4527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 06/28/2022] [Accepted: 07/27/2022] [Indexed: 02/06/2023] Open
Abstract
The microbiota impact on human diseases is well-known, and a growing body of literature is providing evidence about the complex interplay between microbiota-immune system-human physiology/pathology, including cancers. Together with the defined risk factors (e.g., smoke habits, diet, diabetes, and obesity), the oral, gut, biliary, and intrapancreatic microbiota contribute to pancreatic cancer development through different pathways including the interaction with the immune system. Unfortunately, a great majority of the pancreatic cancer patients received a diagnosis in advanced stages not amenable to be radically treated and potentially cured. Given the poor pancreatic cancer prognosis, complete knowledge of these complicated relationships could help researchers better understand the disease pathogenesis and thus provide early potential non-invasive biomarkers, new therapeutic targets, and tools for risk stratification that might result in greater therapeutic possibilities and eventually in a better and longer patient survival.
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Affiliation(s)
- Ilenia Bartolini
- Department of Experimental and Clinical Medicine, HPB Surgery Unit, Azienda Ospedaliero-Universitaria Careggi, Florence 50134, Italy
| | - Giulia Nannini
- Department of Experimental and Clinical Medicine, SOD of Interdisciplinary Internal Medicine, Azienda Ospedaliera-Universitaria Careggi, Florence 50134, Italy
| | - Matteo Risaliti
- Department of Experimental and Clinical Medicine, HPB Surgery Unit, Azienda Ospedaliero-Universitaria Careggi, Florence 50134, Italy
| | - Francesco Matarazzo
- Department of Experimental and Clinical Medicine, HPB Surgery Unit, Azienda Ospedaliero-Universitaria Careggi, Florence 50134, Italy
| | - Luca Moraldi
- Division of Oncologic Surgery, Department of Oncology, Careggi University Hospital, Firenze 50134, Italy
| | - Maria Novella Ringressi
- Department of Experimental and Clinical Medicine, HPB Surgery Unit, Azienda Ospedaliero-Universitaria Careggi, Florence 50134, Italy
| | - Antonio Taddei
- Department of Experimental and Clinical Medicine, HPB Surgery Unit, Azienda Ospedaliero-Universitaria Careggi, Florence 50134, Italy
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, SOD of Interdisciplinary Internal Medicine, Azienda Ospedaliera-Universitaria Careggi, Florence 50134, Italy
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Jiang SJ, Xiao X, Zheng J, Lai S, Yang L, Li J, Liu C, Yang Y, Mu Y. Antibacterial and antibiofilm activities of novel antimicrobial peptide DP7 against the periodontal pathogen Porphyromonas gingivalis. J Appl Microbiol 2022; 133:1052-1062. [PMID: 35567537 DOI: 10.1111/jam.15614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 04/01/2022] [Accepted: 04/27/2022] [Indexed: 12/29/2022]
Abstract
AIMS Accumulating evidence suggests that Porphyromonas gingivalis is closely associated with the development of various chronic inflammatory diseases, particularly periodontitis. This study investigated the antibacterial activity and action mechanism of a novel antimicrobial peptide (AMP), DP7, against P. gingivalis. METHODS AND RESULTS The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) for DP7 were determined via a broth microdilution method, revealing an MIC of 8 μg ml-1 and MBC of 32 μg ml-1 . Growth inhibition and killing assays confirmed the bactericidal effect of DP7, and treatment with DP7 at MBC eliminated P. gingivalis within 8 h. DP7 had a low cytotoxic effect against human cells. Transmission electron microscopy revealed that DP7 destroyed the bacterial membrane, and confocal laser scanning microscopy revealed its inhibitory effect on P. gingivalis biofilms. Quantitative reverse transcription-polymerase chain reaction revealed DP7-mediated inhibition of several virulence factor genes, partially explaining its antibacterial mechanism. CONCLUSIONS DP7, a novel AMP with low mammalian cytotoxicity, inhibits both planktonic and biofilm forms of P. gingivalis by destroying the bacterial membrane and reducing virulence factor gene expression. SIGNIFICANCE AND IMPACT OF THE STUDY DP7 has potential clinical application in the prevention and treatment of P. gingivalis-associated diseases.
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Affiliation(s)
- Si-Jing Jiang
- Stomatology Department, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xun Xiao
- Stomatology Department, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Jiajun Zheng
- Stomatology Department, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Shuang Lai
- Stomatology Department, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Li Yang
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Jing Li
- Stomatology Department, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Chang Liu
- Stomatology Department, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yiling Yang
- Stomatology Department, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yangdong Mu
- Stomatology Department, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
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13
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Herremans KM, Riner AN, Cameron ME, McKinley KL, Triplett EW, Hughes SJ, Trevino JG. The oral microbiome, pancreatic cancer and human diversity in the age of precision medicine. MICROBIOME 2022; 10:93. [PMID: 35701831 PMCID: PMC9199224 DOI: 10.1186/s40168-022-01262-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 03/23/2022] [Indexed: 05/09/2023]
Abstract
Pancreatic cancer is a deadly disease with limited diagnostic and treatment options. Not all populations are affected equally, as disparities exist in pancreatic cancer prevalence, treatment and outcomes. Recently, next-generation sequencing has facilitated a more comprehensive analysis of the human oral microbiome creating opportunity for its application in precision medicine. Oral microbial shifts occur in patients with pancreatic cancer, which may be appreciated years prior to their diagnosis. In addition, pathogenic bacteria common in the oral cavity have been found within pancreatic tumors. Despite these findings, much remains unknown about how or why the oral microbiome differs in patients with pancreatic cancer. As individuals develop, their oral microbiome reflects both their genotype and environmental influences. Genetics, race/ethnicity, smoking, socioeconomics and age affect the composition of the oral microbiota, which may ultimately play a role in pancreatic carcinogenesis. Multiple mechanisms have been proposed to explain the oral dysbiosis found in patients with pancreatic cancer though they have yet to be confirmed. With a better understanding of the interplay between the oral microbiome and pancreatic cancer, improved diagnostic and therapeutic approaches may be implemented to reduce healthcare disparities. Video Abstract.
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Affiliation(s)
- Kelly M. Herremans
- Department of Surgery, University of Florida College of Medicine, P.O. Box 100286, Gainesville, FL 32610 USA
| | - Andrea N. Riner
- Department of Surgery, University of Florida College of Medicine, P.O. Box 100286, Gainesville, FL 32610 USA
| | - Miles E. Cameron
- Department of Surgery, University of Florida College of Medicine, P.O. Box 100286, Gainesville, FL 32610 USA
| | - Kelley L. McKinley
- Department of Microbiology and Cell Science, University of Florida, P.O. Box 110700, Gainesville, FL 32611-0700 USA
| | - Eric W. Triplett
- Department of Microbiology and Cell Science, University of Florida, P.O. Box 110700, Gainesville, FL 32611-0700 USA
| | - Steven J. Hughes
- Department of Surgery, University of Florida College of Medicine, P.O. Box 100286, Gainesville, FL 32610 USA
| | - Jose G. Trevino
- Division of Surgical Oncology, Virginia Commonwealth University, 1200 E Broad St, Richmond, VA 23298-0645 USA
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14
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Bagirova NS, Grigorievskaya ZV, Tereshchenko IV, Petukhova IN, Kazimov AE, Vinnikova VD, Vershinskaya VA. Microbiological and molecular identification of the anaerobic component of the oral microbiota in patients with cancer of the oropharyngeal region. Klin Lab Diagn 2022; 67:301-308. [PMID: 35613350 DOI: 10.51620/0869-2084-2022-67-5-301-308] [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: 12/09/2022]
Abstract
A research objective - to study tumor tissues of primary and recurrent patients with cancer of the oropharyngeal region for the frequency of occurrence of four types of anaerobic periodontogens and their associations by two methods: real-time PCR and cultural. There is speculation that bacteria can influence the pathogenesis of cancer. A comparative assessment of the content of four anaerobic periodontogens (Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythensis, Treponema denticola) in the tumor tissue and in the healthy tissue of the oral mucosa of patients with oropharyngeal cancer was carried out. It was found that the identification of odontopathogens by the real-time PCR method is much more informative than the traditional culture method, with the exception of P. intermedia, for the identification of which the traditional culture method was more effective. In 33.3% of patients, both primary and secondary, the composition of microorganisms was the same in both healthy and tumor tissue. In 20% of primary patients and in 13.3% of repeat patients, no associations of microorganisms included in the study were found in healthy tissue. Associations of 4 bacteria were recorded only in tumor tissue in both primary and repeated patients, and in repeated patients - statistically significantly more often. In 53.3% of repeat patients, associations of 4 bacteria were recorded in tumor tissue, whereas in primary patients, only in one case. P. gingivalis from tumor tissue in repeat patients was statistically significantly more often than in primary patients. T. forsythensis in primary patients was found statistically significantly more often in healthy tissues than in repeat patients, in which T. forsythensis was found statistically significantly more often from tumor tissue than in healthy tissue). T. denticola in healthy tissue was detected in both primary and repeated patients in isolated cases. T. denticola in tumor tissue was found statistically significantly more frequently in both primary and repeated patients compared to healthy tissue. P. gingivalis, T. forsythensis, and T. denticola should perhaps be considered risk indicators indicating the level of significance of their associations with oropharyngeal cancer.
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Affiliation(s)
| | | | | | - I N Petukhova
- N.N. Blokhin national medical research center of oncology
| | - A E Kazimov
- N.N. Blokhin national medical research center of oncology
| | - V D Vinnikova
- A.I. Evdokimov Moscow state university of medicine and dentistry
| | - V A Vershinskaya
- A.I. Evdokimov Moscow state university of medicine and dentistry
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15
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Reitano E, de’Angelis N, Gavriilidis P, Gaiani F, Memeo R, Inchingolo R, Bianchi G, de’Angelis GL, Carra MC. Oral Bacterial Microbiota in Digestive Cancer Patients: A Systematic Review. Microorganisms 2021; 9:2585. [PMID: 34946186 PMCID: PMC8707512 DOI: 10.3390/microorganisms9122585] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/04/2021] [Accepted: 12/09/2021] [Indexed: 02/08/2023] Open
Abstract
The relation between the gut microbiota and human health is increasingly recognized. Recently, some evidence suggested that dysbiosis of the oral microbiota may be involved in the development of digestive cancers. A systematic review was conducted according to the PRISMA guidelines to investigate the association between the oral microbiota and digestive cancers. Several databases including Medline, Scopus, and Embase were searched by three independent reviewers, without date restriction. Over a total of 1654 records initially identified, 28 studies (2 prospective cohort studies and 26 case-controls) were selected. They investigated oral microbiota composition in patients with esophageal squamous cell carcinoma (n = 5), gastric cancer (n = 5), colorectal cancer (n = 9), liver carcinoma (n = 2), and pancreatic cancer (n = 7). In most of the studies, oral microbiota composition was found to be different between digestive cancer patients and controls. Particularly, oral microbiota dysbiosis and specific bacteria, such as Fusobacterium nucleatum and Porphyromonas gingivalis, appeared to be associated with colorectal cancers. Current evidence suggests that differences exist in oral microbiota composition between patients with and without digestive cancers. Further studies are required to investigate and validate oral-gut microbial transmission patterns and their role in digestive cancer carcinogenesis.
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Affiliation(s)
- Elisa Reitano
- Division of General Surgery, Department of Translational Medicine, Maggiore della Carità Hospital, University of Eastern Piedmont, 28100 Novara, Italy;
| | - Nicola de’Angelis
- Unit of Digestive and HPB Surgery, CARE Department, Henri Mondor Hospital, AP-HP, 94010 Créteil, France; (N.d.); (G.B.)
- Faculté de Santé, Université Paris Est, UPEC, 94010 Créteil, France
| | - Paschalis Gavriilidis
- Department of HBP Surgery, University Hospitals Coventry and Warwickshire NHS Trust, Clifford Bridge Road, Coventry CV2 2DX, UK;
| | - Federica Gaiani
- Gastroenterology and Endoscopy Unit, Department of Medicine and Surgery, University Hospital of Parma, 43126 Parma, Italy;
- Microbiome Research Hub, University of Parma, 43126 Parma, Italy
| | - Riccardo Memeo
- Unit of HPB Surgery, General Regional University Hospital F. Miulli, Acquaviva delle Fonti, 72021 Bari, Italy;
| | - Riccardo Inchingolo
- Unit of Interventional Radiology, General Regional Hospital F. Miulli, Acquaviva delle Fonti, 72021 Bari, Italy;
| | - Giorgio Bianchi
- Unit of Digestive and HPB Surgery, CARE Department, Henri Mondor Hospital, AP-HP, 94010 Créteil, France; (N.d.); (G.B.)
| | - Gian Luigi de’Angelis
- Gastroenterology and Endoscopy Unit, Department of Medicine and Surgery, University Hospital of Parma, 43126 Parma, Italy;
| | - Maria Clotilde Carra
- Service of Odontology, Department of Periodontology, Rothschild Hospital, AP-HP, Université de Paris, U.F.R. of Odontology-Garanciere, 75006 Paris, France;
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16
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Chen PJ, Chen YY, Lin CW, Yeh YT, Yeh HW, Huang JY, Yang SF, Yeh CB. Effect of Periodontitis and Scaling and Root Planing on Risk of Pharyngeal Cancer: A Nested Case-Control Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 18:ijerph18010008. [PMID: 33375028 PMCID: PMC7792785 DOI: 10.3390/ijerph18010008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/09/2020] [Accepted: 12/17/2020] [Indexed: 12/12/2022]
Abstract
This study investigated the association between periodontitis and the risk of pharyngeal cancer in Taiwan. For this population-based nested case–control study using the Longitudinal Health Insurance Database derived from Taiwan’s National Health Insurance Research Database, we identified patients (n = 1292) who were newly diagnosed with pharyngeal cancer between 2005 and 2013 and exactly paired them with propensity score matched control subjects (n = 2584). Periodontitis and scaling and root planing (SRP) were identified before the index date. Pharyngeal cancer was subdivided into 3 subgroups on the basis of anatomic location: nasopharyngeal cancer, oropharyngeal cancer, and hypopharyngeal cancer. A multiple conditional logistic regression model was applied to analyze the adjusted odds ratio (aOR). Periodontitis was associated with an increased risk of pharyngeal cancer (aOR, 1.57; 95% confidence interval (CI), 1.17 to 2.10), especially oropharyngeal cancer (aOR, 2.22; 95% CI, 1.07 to 4.60). We found a decreased risk of pharyngeal cancer in patients who had undergone SRP (aOR, 0.77; 95% CI, 0.61 to 0.96). In conclusion, this study showed that periodontitis was associated with an increased risk of pharyngeal cancer and SRP exerted a protective effect against pharyngeal cancer. Our results suggest that treating periodontitis and performing SRP, which are modifiable factors in oral health, in clinical practice may provide an opportunity to decrease the disease burden of pharyngeal cancer in Taiwan.
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Affiliation(s)
- Ping-Ju Chen
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (P.-J.C.); (Y.-Y.C.); (J.-Y.H.)
- Department of Dentistry, Changhua Christian Hospital, Changhua 500, Taiwan
| | - Yin-Yang Chen
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (P.-J.C.); (Y.-Y.C.); (J.-Y.H.)
- Department of Surgery, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Chiao-Wen Lin
- Institute of Oral Sciences, Chung Shan Medical University, Taichung 402, Taiwan;
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung 402, Taiwan;
| | - Ying-Tung Yeh
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung 402, Taiwan;
- Graduate School of Dentistry, School of Dentistry, Chung Shan Medical University, Taichung 402, Taiwan
| | - Han-Wei Yeh
- School of Medicine, Chang Gung University, Taoyuan City 333, Taiwan;
| | - Jing-Yang Huang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (P.-J.C.); (Y.-Y.C.); (J.-Y.H.)
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (P.-J.C.); (Y.-Y.C.); (J.-Y.H.)
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan
- Correspondence: (S.-F.Y.); (C.-B.Y.)
| | - Chao-Bin Yeh
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (P.-J.C.); (Y.-Y.C.); (J.-Y.H.)
- Department of Emergency Medicine, School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
- Department of Emergency Medicine, Chung Shan Medical University Hospital, Taichung 402, Taiwan
- Correspondence: (S.-F.Y.); (C.-B.Y.)
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17
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Lactobacillus Attenuate the Progression of Pancreatic Cancer Promoted by Porphyromonas Gingivalis in K-rasG12D Transgenic Mice. Cancers (Basel) 2020; 12:cancers12123522. [PMID: 33255941 PMCID: PMC7760978 DOI: 10.3390/cancers12123522] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/21/2020] [Accepted: 11/24/2020] [Indexed: 02/08/2023] Open
Abstract
Simple Summary Pancreatic cancer is aggressive and lethal with a five year survival rate of only 5–9%. While the exact pathogenesis of pancreatic cancer is not fully understood, oral pathogens associated with periodontitis, such as Porphyromonas gingivalis (P. gingivalis), are linked to the disease. The aim of our study was to investigate the causal association between exposure to P. gingivalis and subsequent carcinogenesis, and the potential modulatory effects of probiotics. We demonstrated that oral exposure to P. gingivalis can accelerate the development of pancreatic ductal adenocarcinoma in mouse models. In addition, the transforming growth factor-β (TGF-β) signaling pathway may be involved in the cancer-promoting effect of P. gingivalis and the suppressive effects of probiotics. Further understanding of the mechanisms of tumor-promoting or tumor-suppressing effects of TGF-β signaling may have potential as a treatment for pancreatic cancer. Abstract Accumulating evidence suggests that there is a link between the host microbiome and pancreatic carcinogenesis, and that Porphyromonas gingivalis (P. gingivalis) increases the risk of developing pancreatic cancer. The aim of the current study was to clarify the role of P. gingivalis in the pathogenesis of pancreatic cancer and the potential immune modulatory effects of probiotics. The six-week-old LSL-K-rasG12D; Pdx-1-cre (KC) mice smeared P. gingivalis on the gums, causing pancreatic intraepithelial neoplasia (PanIN) after four weeks to be similar to the extent of lesions in untreated KC mice at 24 weeks. The oral inoculation of P. gingivalis of six-week-old LSL-K-rasG12D; Pdx-1-cre (KC) mice caused significantly pancreatic intraepithelial neoplasia (PanIN) after treatment four weeks is similar to the extent of lesions in untreated KC mice at 24 weeks. The pancreas weights of P. gingivalis plus probiotic-treated mice were significantly lower than the mice treated with P. gingivalis alone (P = 0.0028). The histological expressions of Snail-1, ZEB-1, collagen fibers, Galectin-3, and PD-L1 staining in the pancreas were also notably lower. In addition, probiotic administration reduced the histological expression of Smad3 and phosphorylated Smad3 in P. gingivalis treated KC mice. We demonstrated that oral exposure to P. gingivalis can accelerate the development of PanIN lesions. Probiotics are likely to have a beneficial effect by reducing cancer cell proliferation and viability, inhibiting PanIN progression, and cancer cell metastasis (Epithelial–mesenchymal transition, EMT). The transforming growth factor-β signaling pathway may be involved in the tumor suppressive effects of probiotics.
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18
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Porphyromonas spp. have an extensive host range in ill and healthy individuals and an unexpected environmental distribution: A systematic review and meta-analysis. Anaerobe 2020; 66:102280. [PMID: 33011277 DOI: 10.1016/j.anaerobe.2020.102280] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/11/2020] [Accepted: 09/30/2020] [Indexed: 12/26/2022]
Abstract
Studies on the anaerobic bacteria Porphyromonas, mainly focused on P. gingivalis, have revealed new bacterial structures, metabolic pathways, and physiologic functionalities. Porphyromonas are mainly described as being associated with mammals and involved in chronic oral infections and secondary pathologies such as cancers or neurodegenerative diseases. In this review, we collected and analyzed information regarding Porphyromonas isolation sites and associated conditions and showed that Porphyromonas are detected in numerous pristine and anthropic environments and that their host range appears wider than previously believed, including aquatic animals, arthropods, and birds, even if their predominant hosts remain humans, pets, and farm animals. Our analyses also revealed their presence in multiple organs and in a substantial proportion of healthy contexts. Overall, the growing numbers of microbiota studies have allowed unprecedented advances in the understanding of Porphyromonas ecology but raise questions regarding their phylogenic assignment. In conclusion, this systematic and meta-analysis provides an overview of current knowledge regarding Porphyromonas ecological distribution and encourages additional research to fill the knowledge gaps to better understand their environmental distribution and inter- and intra-species transmission.
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Liang G, Wang H, Shi H, Zhu M, An J, Qi Y, Du J, Li Y, Gao S. Porphyromonas gingivalis Promotes the Proliferation and Migration of Esophageal Squamous Cell Carcinoma through the miR-194/GRHL3/PTEN/Akt Axis. ACS Infect Dis 2020; 6:871-881. [PMID: 32298082 DOI: 10.1021/acsinfecdis.0c00007] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent studies have revealed that Porphyromonas gingivalis is closely related to the occurrence and progression of esophageal squamous cell carcinoma (ESCC). However, the underlying mechanism of P. gingivalis in ESCC has not been well elucidated. To explore the mechanism of P. gingivalis infection in ESCC, cellular proliferation, invasion, and migration models of KYSE-30 and KYSE-150 cells infected by P. gingivalis at a multiplicity of infection (MOI) of 10 were established. The results showed that P. gingivalis infection could drastically increase the proliferation, invasion, and migration ability of ESCC. Furthermore, the results of high-throughput sequencing showed that miR-194 was considerably upregulated in infected cells compared with control cells, which was further verified by qRT-PCR. The inhibition or overexpression of miR-194 had a significant effect on KYSE-30 and KYSE-150 cell migration and invasion. Additionally, the levels of GRHL3 and PTEN were decreased in P. gingivalis-infected esophageal cancer cells compared with uninfected esophageal cancer cells. Furthermore, dual-luciferase experiments confirmed that GRHL3 is a direct target of miR-194. In addition, the GRHL3-related pathway was investigated, and the levels of GRHL3 and PTEN were downregulated while the level of p-Akt was upregulated after P. gingivalis infection. Taken together, these findings indicated that P. gingivalis might promote ESCC proliferation and migration via the miR-194/GRHL3/PTEN/Akt signaling axis.
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20
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Irani S, Barati I, Badiei M. Periodontitis and oral cancer - current concepts of the etiopathogenesis. Oncol Rev 2020; 14:465. [PMID: 32231765 PMCID: PMC7097927 DOI: 10.4081/oncol.2020.465] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/12/2020] [Indexed: 02/06/2023] Open
Abstract
Gingival tissues are attacked by oral pathogens which can induce inflammatory reactions. The immune-inflammatory responses play essential roles in the patient susceptibility to periodontal diseases. There is a wealth of evidence indicating a link between chronic inflammation and risk of malignant transformation of the affected oral epithelium. Periodontitis is associated with an increased risk of developing chronic systemic conditions including autoimmune diseases and different types of cancers. Besides, some risk factors such as smoking, alcohol consumption and human papilloma virus have been found to be associated with both periodontitis and oral cancer. This review article aimed to study the current concepts in pathogenesis of chronic periodontitis and oral cancer by reviewing the related articles.
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Affiliation(s)
- Soussan Irani
- Dental Research Centre, Oral Pathology Department, Dental Faculty, Hamadan University of Medical Sciences
| | - Iman Barati
- Department of Periodontology, Dental Faculty, Hamadan University of Medical Sciences
| | - Mohammadreza Badiei
- Dental Student, Dental Faculty, Hamadan University of Medical Sciences, Hamadan, Iran
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