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Sheridan M, Chowdhury N, Wellslager B, Oleinik N, Kassir MF, Lee HG, Engevik M, Peterson Y, Pandruvada S, Szulc ZM, Yilmaz Ö, Ogretmen B. Opportunistic pathogen Porphyromonas gingivalis targets the LC3B-ceramide complex and mediates lethal mitophagy resistance in oral tumors. iScience 2024; 27:109860. [PMID: 38779482 PMCID: PMC11108982 DOI: 10.1016/j.isci.2024.109860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/29/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024] Open
Abstract
Mechanisms by which Porphyromonas gingivalis (P. gingivalis) infection enhances oral tumor growth or resistance to cell death remain elusive. Here, we determined that P. gingivalis infection mediates therapeutic resistance via inhibiting lethal mitophagy in cancer cells and tumors. Mechanistically, P. gingivalis targets the LC3B-ceramide complex by associating with LC3B via bacterial major fimbriae (FimA) protein, preventing ceramide-dependent mitophagy in response to various therapeutic agents. Moreover, ceramide-mediated mitophagy is induced by Annexin A2 (ANXA2)-ceramide association involving the E142 residue of ANXA2. Inhibition of ANXA2-ceramide-LC3B complex formation by wild-type P. gingivalis prevented ceramide-dependent mitophagy. Moreover, a FimA-deletion mutant P. gingivalis variant had no inhibitory effects on ceramide-dependent mitophagy. Further, 16S rRNA sequencing of oral tumors indicated that P. gingivalis infection altered the microbiome of the tumor macroenvironment in response to ceramide analog treatment in mice. Thus, these data provide a mechanism describing the pro-survival roles of P. gingivalis in oral tumors.
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Affiliation(s)
- Megan Sheridan
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
- Hollings Cancer Center, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Nityananda Chowdhury
- Department of Oral Health Sciences, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Bridgette Wellslager
- Department of Oral Health Sciences, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Natalia Oleinik
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
- Hollings Cancer Center, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Mohamed Faisal Kassir
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
- Hollings Cancer Center, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Han G. Lee
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
- Hollings Cancer Center, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Mindy Engevik
- Department of Regenerative Medicine, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Yuri Peterson
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Subramanya Pandruvada
- Department of Oral Health Sciences, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Zdzislaw M. Szulc
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
- Hollings Cancer Center, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Özlem Yilmaz
- Hollings Cancer Center, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
- Department of Oral Health Sciences, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
| | - Besim Ogretmen
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
- Hollings Cancer Center, Medical University of South Carolina, 86 Jonathan Lucas Street, Charleston, SC 29425, USA
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Ciani L, Libonati A, Dri M, Pomella S, Campanella V, Barillari G. About a Possible Impact of Endodontic Infections by Fusobacterium nucleatum or Porphyromonas gingivalis on Oral Carcinogenesis: A Literature Overview. Int J Mol Sci 2024; 25:5083. [PMID: 38791123 PMCID: PMC11121237 DOI: 10.3390/ijms25105083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024] Open
Abstract
Periodontitis is linked to the onset and progression of oral squamous cell carcinoma (OSCC), an epidemiologically frequent and clinically aggressive malignancy. In this context, Fusobacterium (F.) nucleatum and Porphyromonas (P.) gingivalis, two bacteria that cause periodontitis, are found in OSCC tissues as well as in oral premalignant lesions, where they exert pro-tumorigenic activities. Since the two bacteria are present also in endodontic diseases, playing a role in their pathogenesis, here we analyze the literature searching for information on the impact that endodontic infection by P. gingivalis or F. nucleatum could have on cellular and molecular events involved in oral carcinogenesis. Results from the reviewed papers indicate that infection by P. gingivalis and/or F. nucleatum triggers the production of inflammatory cytokines and growth factors in dental pulp cells or periodontal cells, affecting the survival, proliferation, invasion, and differentiation of OSCC cells. In addition, the two bacteria and the cytokines they induce halt the differentiation and stimulate the proliferation and invasion of stem cells populating the dental pulp or the periodontium. Although most of the literature confutes the possibility that bacteria-induced endodontic inflammatory diseases could impact on oral carcinogenesis, the papers we have analyzed and discussed herein recommend further investigations on this topic.
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Affiliation(s)
- Luca Ciani
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (L.C.); (S.P.); (V.C.)
| | - Antonio Libonati
- Department of Surgical Sciences, Catholic University of Our Lady of Good Counsel of Tirane, 1001 Tirana, Albania;
| | - Maria Dri
- Department of Surgical Sciences, University of Rome Tor Vergata, 00133 Rome, Italy;
| | - Silvia Pomella
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (L.C.); (S.P.); (V.C.)
| | - Vincenzo Campanella
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (L.C.); (S.P.); (V.C.)
| | - Giovanni Barillari
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (L.C.); (S.P.); (V.C.)
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Metsäniitty M, Hasnat S, Öhman C, Salo T, Eklund KK, Oscarsson J, Salem A. Extracellular vesicles from Aggregatibacter actinomycetemcomitans exhibit potential antitumorigenic effects in oral cancer: a comparative in vitro study. Arch Microbiol 2024; 206:244. [PMID: 38702412 PMCID: PMC11068833 DOI: 10.1007/s00203-024-03976-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/24/2024] [Indexed: 05/06/2024]
Abstract
Aggregatibacter actinomycetemcomitans is an opportunistic Gram-negative periodontopathogen strongly associated with periodontitis and infective endocarditis. Recent evidence suggests that periodontopathogens can influence the initiation and progression of oral squamous cell carcinoma (OSCC). Herein we aimed to investigate the effect of A. actinomycetemcomitans-derived extracellular vesicles (EVs) on OSCC cell behavior compared with EVs from periodontopathogens known to associate with carcinogenesis. EVs were isolated from: A. actinomycetemcomitans and its mutant strains lacking the cytolethal distending toxin (CDT) or lipopolysaccharide (LPS) O-antigen; Porphyromonas gingivalis; Fusobacterium nucleatum; and Parvimonas micra. The effect of EVs on primary and metastatic OSCC cells was assessed using cell proliferation, apoptosis, migration, invasion, and tubulogenesis assays. A. actinomycetemcomitans-derived EVs reduced the metastatic cancer cell proliferation, invasion, tubulogenesis, and increased apoptosis, mostly in CDT- and LPS O-antigen-dependent manner. EVs from F. nucleatum impaired the metastatic cancer cell proliferation and induced the apoptosis rates in all OSCC cell lines. EVs enhanced cancer cell migration regardless of bacterial species. In sum, this is the first study demonstrating the influence of A. actinomycetemcomitans-derived EVs on oral cancer in comparison with other periodontopathogens. Our findings revealed a potential antitumorigenic effect of these EVs on metastatic OSCC cells, which warrants further in vivo investigations.
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Affiliation(s)
- Marjut Metsäniitty
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, 00014, Finland
| | - Shrabon Hasnat
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, 00014, Finland
| | - Carina Öhman
- Oral Microbiology, Department of Odontology, Umeå University, Umeå, 90187, Sweden
| | - Tuula Salo
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, 00014, Finland
| | - Kari K Eklund
- Department of Rheumatology, University of Helsinki and Helsinki University Hospital, Helsinki, 00014, Finland
- Translational Immunology Research Program (TRIMM), Research Program Unit (RPU), Faculty of Medicine, University of Helsinki, Helsinki, 00014, Finland
| | - Jan Oscarsson
- Oral Microbiology, Department of Odontology, Umeå University, Umeå, 90187, Sweden
| | - Abdelhakim Salem
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, 00014, Finland.
- Translational Immunology Research Program (TRIMM), Research Program Unit (RPU), Faculty of Medicine, University of Helsinki, Helsinki, 00014, Finland.
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Li X, Zhou J, Liu X, Jin C, Liu L, Sun H, Wang Q, Wang Q, Liu R, Zheng X, Liu Y, Pang Y. Nucleoside-diphosphate kinase of uropathogenic Escherichia coli inhibits caspase-1-dependent pyroptosis facilitating urinary tract infection. Cell Rep 2024; 43:114051. [PMID: 38564334 DOI: 10.1016/j.celrep.2024.114051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 02/19/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024] Open
Abstract
Uropathogenic Escherichia coli (UPEC) is the most common causative agent of urinary tract infection (UTI). UPEC invades bladder epithelial cells (BECs) via fusiform vesicles, escapes into the cytosol, and establishes biofilm-like intracellular bacterial communities (IBCs). Nucleoside-diphosphate kinase (NDK) is secreted by pathogenic bacteria to enhance virulence. However, whether NDK is involved in UPEC pathogenesis remains unclear. Here, we find that the lack of ndk impairs the colonization of UPEC CFT073 in mouse bladders and kidneys owing to the impaired ability of UPEC to form IBCs. Furthermore, we demonstrate that NDK inhibits caspase-1-dependent pyroptosis by consuming extracellular ATP, preventing superficial BEC exfoliation, and promoting IBC formation. UPEC utilizes the reactive oxygen species (ROS) sensor OxyR to indirectly activate the regulator integration host factor, which then directly activates ndk expression in response to intracellular ROS. Here, we reveal a signaling transduction pathway that UPEC employs to inhibit superficial BEC exfoliation, thus facilitating acute UTI.
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Affiliation(s)
- Xueping Li
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China
| | - Jiarui Zhou
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China
| | - Xingmei Liu
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China
| | - Chen Jin
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China
| | - Le Liu
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China
| | - Hongmin Sun
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China
| | - Qian Wang
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China
| | - Qiushi Wang
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China
| | - Ruiying Liu
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China
| | - Xiaoyu Zheng
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China
| | - Yutao Liu
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China.
| | - Yu Pang
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Tianjin 300457, P.R. China; The Key Laboratory of Molecular Microbiology and Technology, TEDA Institute of Biological Sciences and Biotechnology, Nankai University, Ministry of Education, Tianjin 300457, P.R. China.
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Sukmana BI, Saleh RO, Najim MA, AL-Ghamdi HS, Achmad H, Al-Hamdani MM, Taher AAY, Alsalamy A, Khaledi M, Javadi K. Oral microbiota and oral squamous cell carcinoma: a review of their relation and carcinogenic mechanisms. Front Oncol 2024; 14:1319777. [PMID: 38375155 PMCID: PMC10876296 DOI: 10.3389/fonc.2024.1319777] [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: 10/11/2023] [Accepted: 01/15/2024] [Indexed: 02/21/2024] Open
Abstract
Oral Squamous Cell Carcinoma (OSCC) is the most common type of head and neck cancer worldwide. Emerging research suggests a strong association between OSCC and the oral microbiota, a diverse community of bacteria, fungi, viruses, and archaea. Pathogenic bacteria, in particular Porphyromonas gingivalis and Fusobacterium nucleatum, have been closely linked to OSCC. Moreover, certain oral fungi, such as Candida albicans, and viruses, like the human papillomavirus, have also been implicated in OSCC. Despite these findings, the precise mechanisms through which the oral microbiota influences OSCC development remain unclear and necessitate further research. This paper provides a comprehensive overview of the oral microbiota and its relationship with OSCC and discusses potential carcinogenic pathways that the oral microbiota may activate or modulate are also discussed.
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Affiliation(s)
| | - Raed Obaid Saleh
- Department of Medical Laboratory Techniques, Al-Maarif University College, Al-Anbar, Iraq
| | | | - Hasan S. AL-Ghamdi
- Internal Medicine Department, Division of Dermatology, Faculty of Medicine, Albaha University, Albaha, Saudi Arabia
| | - Harun Achmad
- Department of Pediatric Dentistry, Faculty of Dentistry, Hasanuddin University, Indonesia (Lecture of Pediatric Dentistry), Makassar, Indonesia
| | | | | | - Ali Alsalamy
- College of Technical Engineering, Imam Ja’afar Al‐Sadiq University, Al‐Muthanna, Iraq
| | - Mansoor Khaledi
- Department of Microbiology and Immunology, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Kasra Javadi
- Department of Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
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6
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Luo S, Xu T, Zheng Q, Jiang A, Zhao J, Ying Y, Liu N, Pan Y, Zhang D. Mitochondria: An Emerging Unavoidable Link in the Pathogenesis of Periodontitis Caused by Porphyromonas gingivalis. Int J Mol Sci 2024; 25:737. [PMID: 38255811 PMCID: PMC10815845 DOI: 10.3390/ijms25020737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Porphyromonas gingivalis (P. gingivalis) is a key pathogen of periodontitis. Increasing evidence shows that P. gingivalis signals to mitochondria in periodontal cells, including gingival epithelial cells, gingival fibroblast cells, immune cells, etc. Mitochondrial dysfunction affects the cellular state and participates in periodontal inflammatory response through the aberrant release of mitochondrial contents. In the current review, it was summarized that P. gingivalis induced mitochondrial dysfunction by altering the mitochondrial metabolic state, unbalancing mitochondrial quality control, prompting mitochondrial reactive oxygen species (ROS) production, and regulating mitochondria-mediated apoptosis. This review outlines the impacts of P. gingivalis and its virulence factors on the mitochondrial function of periodontal cells and their role in periodontitis.
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Affiliation(s)
- Shiyin Luo
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang 110002, China; (S.L.); (T.X.); (Q.Z.); (A.J.); (J.Z.); (Y.Y.); (N.L.)
| | - Tong Xu
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang 110002, China; (S.L.); (T.X.); (Q.Z.); (A.J.); (J.Z.); (Y.Y.); (N.L.)
| | - Qifan Zheng
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang 110002, China; (S.L.); (T.X.); (Q.Z.); (A.J.); (J.Z.); (Y.Y.); (N.L.)
| | - Aijia Jiang
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang 110002, China; (S.L.); (T.X.); (Q.Z.); (A.J.); (J.Z.); (Y.Y.); (N.L.)
| | - Jiahui Zhao
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang 110002, China; (S.L.); (T.X.); (Q.Z.); (A.J.); (J.Z.); (Y.Y.); (N.L.)
| | - Yue Ying
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang 110002, China; (S.L.); (T.X.); (Q.Z.); (A.J.); (J.Z.); (Y.Y.); (N.L.)
| | - Nan Liu
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang 110002, China; (S.L.); (T.X.); (Q.Z.); (A.J.); (J.Z.); (Y.Y.); (N.L.)
| | - Yaping Pan
- Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, Shenyang 110002, China;
| | - Dongmei Zhang
- Department of Periodontics and Oral Biology, School of Stomatology, China Medical University, Shenyang 110002, China;
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Wang J, Gao B. Mechanisms and Potential Clinical Implications of Oral Microbiome in Oral Squamous Cell Carcinoma. Curr Oncol 2023; 31:168-182. [PMID: 38248096 PMCID: PMC10814288 DOI: 10.3390/curroncol31010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 01/23/2024] Open
Abstract
Microorganisms in the oral cavity are abundant in the human body. At present, more than 700 species of oral microorganisms have been identified. Recently, a lot of literature has indicated that the oral microbiota plays an important role in the occurrence, development, and prognosis of oral squamous cell carcinoma (OSCC) through various mechanisms. And researchers are now trying to utilize oral microbiota in cancer diagnosis and treatment. However, few articles systematically summarize the effects of oral microbes in the diagnosis, treatment, and disease outcomes of oral cancer. Herein, we made a summary of the microbial changes at cancerous sites and placed more emphasis on the mechanisms by which the oral microbiome promotes cancerization. Moreover, we aimed to find out the clinical value of the oral microbiome in OSCC.
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Affiliation(s)
| | - Bo Gao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China;
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Lian L, Sun Q, Huang X, Li W, Cui Y, Pan Y, Yang X, Wang P. Inhibition of Cell Apoptosis by Apicomplexan Protozoa-Host Interaction in the Early Stage of Infection. Animals (Basel) 2023; 13:3817. [PMID: 38136854 PMCID: PMC10740567 DOI: 10.3390/ani13243817] [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: 10/04/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
Apicomplexan protozoa, which are a group of specialized intracellular parasitic protozoa, infect humans and other animals and cause a variety of diseases. The lack of research on the interaction mechanism between Apicomplexan protozoa and their hosts is a key factor restricting the development of new drugs and vaccines. In the early stages of infection, cell apoptosis is inhibited by Apicomplexan protozoa through their interaction with the host cells; thereby, the survival and reproduction of Apicomplexan protozoa in host cells is promoted. In this review, the key virulence proteins and pathways are introduced regarding the inhibition of cell apoptosis by the interaction between the protozoa and their host during the early stage of Apicomplexan protozoa infection. It provides a theoretical basis for the development of drugs or vaccines for protozoal diseases.
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Affiliation(s)
- Liyin Lian
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Provincial Engineering Research Center for Animal Health Diagnostics & Advanced Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China Australia Joint Laboratory for Animal Health Big Data Analytics, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A & F University, Hangzhou 311300, China; (L.L.); (Q.S.); (X.H.); (W.L.); (Y.C.); (X.Y.)
| | - Qian Sun
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Provincial Engineering Research Center for Animal Health Diagnostics & Advanced Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China Australia Joint Laboratory for Animal Health Big Data Analytics, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A & F University, Hangzhou 311300, China; (L.L.); (Q.S.); (X.H.); (W.L.); (Y.C.); (X.Y.)
| | - Xinyi Huang
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Provincial Engineering Research Center for Animal Health Diagnostics & Advanced Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China Australia Joint Laboratory for Animal Health Big Data Analytics, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A & F University, Hangzhou 311300, China; (L.L.); (Q.S.); (X.H.); (W.L.); (Y.C.); (X.Y.)
| | - Wanjing Li
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Provincial Engineering Research Center for Animal Health Diagnostics & Advanced Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China Australia Joint Laboratory for Animal Health Big Data Analytics, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A & F University, Hangzhou 311300, China; (L.L.); (Q.S.); (X.H.); (W.L.); (Y.C.); (X.Y.)
| | - Yanjun Cui
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Provincial Engineering Research Center for Animal Health Diagnostics & Advanced Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China Australia Joint Laboratory for Animal Health Big Data Analytics, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A & F University, Hangzhou 311300, China; (L.L.); (Q.S.); (X.H.); (W.L.); (Y.C.); (X.Y.)
| | - Yuebo Pan
- Gansu Polytechnic College of Animal Husbandry and Engineering, Wuwei 733006, China
| | - Xianyu Yang
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Provincial Engineering Research Center for Animal Health Diagnostics & Advanced Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China Australia Joint Laboratory for Animal Health Big Data Analytics, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A & F University, Hangzhou 311300, China; (L.L.); (Q.S.); (X.H.); (W.L.); (Y.C.); (X.Y.)
| | - Pu Wang
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Provincial Engineering Research Center for Animal Health Diagnostics & Advanced Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China Australia Joint Laboratory for Animal Health Big Data Analytics, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A & F University, Hangzhou 311300, China; (L.L.); (Q.S.); (X.H.); (W.L.); (Y.C.); (X.Y.)
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9
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Blancas-Luciano BE, Zamora-Chimal J, da Silva-de Rosenzweig PG, Ramos-Mares M, Fernández-Presas AM. Macrophages immunomodulation induced by Porphyromonas gingivalis and oral antimicrobial peptides. Odontology 2023; 111:778-792. [PMID: 36897441 PMCID: PMC10492884 DOI: 10.1007/s10266-023-00798-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 02/21/2023] [Indexed: 03/11/2023]
Abstract
Porphyromonas gingivalis is a keystone pathogen associated with periodontitis development, a chronic inflammatory pathology characterized by the destruction of the supporting teeth structure. Macrophages are recruited cells in the inflammatory infiltrate from patients with periodontitis. They are activated by the P. gingivalis virulence factors arsenal, promoting an inflammatory microenvironment characterized by cytokine production (TNF-α, IL-1β, IL-6), prostaglandins, and metalloproteinases (MMPs) that foster the tissular destruction characteristic of periodontitis. Furthermore, P. gingivalis suppresses the generation of nitric oxide, a potent antimicrobial molecule, through its degradation, and incorporating its byproducts as a source of energy. Oral antimicrobial peptides can contribute to controlling the disease due to their antimicrobial and immunoregulatory activity, which allows them to maintain homeostasis in the oral cavity. This study aimed to analyze the immunopathological role of macrophages activated by P. gingivalis in periodontitis and suggested using antimicrobial peptides as therapeutic agents to treat the disease.
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Affiliation(s)
- Blanca Esther Blancas-Luciano
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Col. Universidad Nacional Autónoma de México, Av. Universidad 3000, CP 04510, Mexico City, Mexico
- Posgrado en Ciencias Biológicas, Unidad de Posgrado, Ciudad Universitaria, Edificio D, 1° Piso, Mexico City, Mexico
| | - Jaime Zamora-Chimal
- Unidad de Investigación en Medicina Experimental, Universidad Nacional Autónoma de México, Hospital General de México, Dr. Balmis, 148 Col. Doctores, Del. Cuauhtémoc, C.P. 06726, Mexico City, Mexico
| | - Pablo Gomes da Silva-de Rosenzweig
- Centro de Investigación en Ciencias de la Salud (CICSA), FCS, Universidad Anáhuac México Campus Norte, Huixquilucan, State of Mexico, Mexico
| | - Mariana Ramos-Mares
- Centro de Investigación en Ciencias de la Salud (CICSA), FCS, Universidad Anáhuac México Campus Norte, Huixquilucan, State of Mexico, Mexico
| | - Ana María Fernández-Presas
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Col. Universidad Nacional Autónoma de México, Av. Universidad 3000, CP 04510, Mexico City, Mexico.
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10
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Nasiri K, Amiri Moghaddam M, Etajuri EA, Badkoobeh A, Tavakol O, Rafinejad M, Forutan Mirhosseini A, Fathi A. Periodontitis and progression of gastrointestinal cancer: current knowledge and future perspective. Clin Transl Oncol 2023; 25:2801-2811. [PMID: 37036595 DOI: 10.1007/s12094-023-03162-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 02/26/2023] [Indexed: 04/11/2023]
Abstract
Periodontitis is a polymicrobial disorder caused by dysbiosis. Porphyromonas gingivalis (P.gingivalis) and Fusobacterium nucleatum (F.nucleatum) are pathobiont related to periodontitis pathogenesis and were found to be abundant in the intestinal mucosa of inflammatory bowel disease (IBD) and colorectal cancer (CRC) patients. Besides, periodontal infections have been found in a variety of tissues and organs, indicating that periodontitis is not just an inflammation limited to the oral cavity. Considering the possible translocation of pathobiont from the oral cavity to the gastrointestinal (GI) tract, this study aimed to review the published articles in this field to provide a comprehensive view of the existing knowledge about the relationship between periodontitis and GI malignancies by focusing on the oral/gut axis.
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Affiliation(s)
- Kamyar Nasiri
- Department of Dentistry, Islamic Azad University, Tehran, Iran
| | - Masoud Amiri Moghaddam
- Department of Periodontics, Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Enas Abdalla Etajuri
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Ashkan Badkoobeh
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Qom University of Medical Sciences, Qom, Iran
| | - Omid Tavakol
- Department of Prosthodontics, Islamic Azad University, Shiraz, Iran
| | | | | | - Amirhossein Fathi
- Department of Prosthodontics, Dental Materials Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
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11
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Lamont RJ, Miller DP, Bagaitkar J. Illuminating the oral microbiome: cellular microbiology. FEMS Microbiol Rev 2023; 47:fuad045. [PMID: 37533213 PMCID: PMC10657920 DOI: 10.1093/femsre/fuad045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 07/11/2023] [Accepted: 08/01/2023] [Indexed: 08/04/2023] Open
Abstract
Epithelial cells line mucosal surfaces such as in the gingival crevice and provide a barrier to the ingress of colonizing microorganisms. However, epithelial cells are more than a passive barrier to microbial intrusion, and rather constitute an interactive interface with colonizing organisms which senses the composition of the microbiome and communicates this information to the underlying cells of the innate immune system. Microorganisms, for their part, have devised means to manipulate host cell signal transduction pathways to favor their colonization and survival. Study of this field, which has become known as cellular microbiology, has revealed much about epithelial cell physiology, bacterial colonization and pathogenic strategies, and innate host responses.
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Affiliation(s)
- Richard J Lamont
- Department of Oral Immunology and Infectious Diseases, University of Louisville, Louisville, KY, KY40202, United States
| | - Daniel P Miller
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA, VA23298, United States
| | - Juhi Bagaitkar
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, OH43205, United States
- Department of Pediatrics, The Ohio State College of Medicine, Columbus, OH, OH43210, United States
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12
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Singh S, Yadav PK, Singh AK. In-silico structural characterization and phylogenetic analysis of Nucleoside diphosphate kinase: A novel antiapoptotic protein of Porphyromonas gingivalis. J Cell Biochem 2023; 124:545-556. [PMID: 36815439 DOI: 10.1002/jcb.30389] [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: 12/15/2022] [Revised: 02/02/2023] [Accepted: 02/09/2023] [Indexed: 02/24/2023]
Abstract
The Nucleoside diphosphate kinase (NDK) protein of Porphyromonas gingivalis (P. gingivalis) plays a crucial role in immune evasion and inhibition of apoptosis in host cells and has the potential to cause cancer. However, its structure has not yet been characterized. We used an in-silico approach to determine the 3D structure of the P. gingivalis NDK. Furthermore, structural characterization and functional annotation were performed using computational approaches. The 3D structure of NDK was predicted through homology modeling. The structural domains predicted for the model protein belong to the NDK family. Structural alignment of prokaryotic and eukaryotic NDKs with the model protein revealed the conservation of the domain region. Structure-based phylogenetic analysis depicted a significant evolutionary relationship between the model protein and the prokaryotic NDK. Functional annotation of the model confirmed structural homology, exhibiting similar enzymatic functions as NDK, including ATP binding and nucleoside diphosphate kinase activity. Furthermore, molecular dynamic (MD) simulation technique stabilized the model structure and provides a thermo-stable protein structure that can be used as a therapeutic target for further studies.
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Affiliation(s)
- Suchitra Singh
- Department of Bioinformatics, Central University of South Bihar, Gaya, India
| | - Piyush Kumar Yadav
- Department of Bioinformatics, Central University of South Bihar, Gaya, India
| | - Ajay Kumar Singh
- Department of Bioinformatics, Central University of South Bihar, Gaya, India
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13
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Stasiewicz M, Karpiński TM. The oral microbiota and its role in carcinogenesis. Semin Cancer Biol 2022; 86:633-642. [PMID: 34743032 DOI: 10.1016/j.semcancer.2021.11.002] [Citation(s) in RCA: 74] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 01/27/2023]
Abstract
Despite decades of research, cancer continues to be a major global health concern. In recent years, the role played by microorganisms in the development and progression of cancer has come under increased scrutiny. The aim of the present review is to highlight the main associations between members of the human oral microbiota and various cancers. The PubMed database was searched for available literature to outline the current state of understanding regarding the role of the oral microbiota and a variety of human cancers. Oral squamous cell carcinoma (OSCC) is associated with carriage of a number of oral bacteria (e.g., Porphyromonas gingivalis, Fusobacterium nucleatum, Streptococcus sp.), certain viruses (e.g., human papilloma virus, human herpes virus 8, herpes simplex virus 1 and Epstein-Barr virus) and yeast (Candida albicans). Moreover, members of the oral microbiota are associated with cancers of the esophagus, stomach, pancreas, colon/rectum and lung. Furthermore, the present review outlines a number of the carcinogenic mechanisms underlying the presented microbial associations with cancer. Such information may one day help clinicians to diagnose neoplastic diseases at earlier stages and prescribe treatments that take into account the possible microbial nature of carcinogenesis.
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Affiliation(s)
- Mark Stasiewicz
- Research Group of Medical Microbiology, Chair and Department of Medical Microbiology, Poznań University of Medical Sciences, Wieniawskiego 3, 61-712 Poznań, Poland.
| | - Tomasz M Karpiński
- Chair and Department of Medical Microbiology, Poznań University of Medical Sciences, Wieniawskiego 3, 61-712 Poznań, Poland.
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14
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Song X, Greiner-Tollersrud OK, Zhou H. Oral Microbiota Variation: A Risk Factor for Development and Poor Prognosis of Esophageal Cancer. Dig Dis Sci 2022; 67:3543-3556. [PMID: 34505256 DOI: 10.1007/s10620-021-07245-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 08/23/2021] [Indexed: 12/24/2022]
Abstract
Recent studies have shown that oral microbiota play an important role in the esophageal cancer (EC) initiation and progression, suggesting that oral microbiota is a new risk factor for EC. The composition of the microbes inhabiting the oral cavity could be perturbed with continuous factors such as smoking, alcohol consumption, and inflammation. The microbial alteration involves the decrease of beneficial species and the increase of pathogenic species. Experimental evidences suggest a significant role of oral commensal organisms in protecting hosts against EC. By contrast, oral pathogens, especially Porphyromonas gingivalis and Fusobacterium nucleatum, give rise to the risk for developing EC through their pro-inflammatory and pro-tumorigenic activities. The presences of oral dysbiosis, microbial biofilm, and periodontitis in EC patients are found to be associated with invasive cancer phenotypes and poor prognosis. The mechanism of oral bacteria in EC progression is complex, which involves a combination of cytokines, chemokines, oncogenic signaling pathways, cell surface receptors, the degradation of extracellular matrix, and cell apoptosis. From a clinical perspective, good oral hygiene, professional oral care, and rational use of antibiotics bring positive impacts on oral microbial balance, thus helping individuals reduce the risk of EC, inhibiting postoperative complications among EC patients, and improving the efficiency of chemoradiotherapy. However, current oral hygiene practices mainly focus on the oral bacteria-based predictive and preventive purposes. It is still far from implementing microbiota-dependent regulation as a therapy for EC. Further explorations are needed to render oral microbiota a potential target for treating EC.
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Affiliation(s)
- Xiaobo Song
- Department of Microbiology, Dalian Medical University, No.9 West Section Lvshun South Road, Dalian, 116044, Liaoning Province, China.,Department of Medical Biology, Faculty of Health Sciences, University of Tromsø, 9037, Tromsø, Norway
| | - Ole K Greiner-Tollersrud
- Department of Medical Biology, Faculty of Health Sciences, University of Tromsø, 9037, Tromsø, Norway
| | - Huimin Zhou
- Department of Microbiology, Dalian Medical University, No.9 West Section Lvshun South Road, Dalian, 116044, Liaoning Province, China.
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15
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Karakaya E, Abdul Y, Chowdhury N, Wellslager B, Jamil S, Albayram O, Yilmaz Ö, Ergul A. Porphyromonas gingivalis infection upregulates the endothelin (ET) system in brain microvascular endothelial cells. Can J Physiol Pharmacol 2022; 100:679-688. [PMID: 35442801 PMCID: PMC9583200 DOI: 10.1139/cjpp-2022-0035] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Endothelin-1 (ET-1), the most potent vasoconstrictor identified to date, contributes to cerebrovascular dysfunction and brain ET-1 levels were shown to be related to Alzheimer's disease and related dementias (ADRD) progression. ET-1 also contributes to neuroinflammation, especially in infections of the central nervous system. Recent studies causally linked chronic periodontal infection with an opportunistic anaerobic bacterium Porphyromonas gingivalis (Coykendall et al.) Shah & Collins to AD development. Thus, the goal of the study was to determine the impact of P. gingivalis infection on the ET system and cell senescence in brain microvascular endothelial cells. Cells were infected with a multiplicity of infection 50 P. gingivalis with and without extracellular ATP-induced oxidative stress for 24 h. Cell lysates were collected for analysis of endothelin A receptor (ETA)/endothelin B receptor (ETB) receptor as well as senescence markers. ET-1 levels in cell culture media were measured with enzyme-linked immunosorbent assay. P. gingivalis infection increased ET-1 (pg/mL) secretion, as well as the ETA receptor expression, whereas decreased lamin A/C expression compared to control. Tight junction protein claudin-5 was also decreased under these conditions. ETA or ETB receptor blockade during infection did not affect ET-1 secretion or the expression of cell senescence markers. Current findings suggest that P. gingivalis infection may compromise endothelial integrity and activate the ET system.
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Affiliation(s)
- Eda Karakaya
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina
- Department of Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC
| | - Yasir Abdul
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina
- Department of Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC
| | | | | | - Sarah Jamil
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina
- Department of Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC
| | - Onder Albayram
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina
- Department of Neurosciences, Medical University of South Carolina
| | - Özlem Yilmaz
- Department of Oral Health Sciences, Medical University of South Carolina
| | - Adviye Ergul
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina
- Department of Neurosciences, Medical University of South Carolina
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16
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Li TJ, Hao YH, Tang YL, Liang XH. Periodontal Pathogens: A Crucial Link Between Periodontal Diseases and Oral Cancer. Front Microbiol 2022; 13:919633. [PMID: 35847109 PMCID: PMC9279119 DOI: 10.3389/fmicb.2022.919633] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/20/2022] [Indexed: 12/24/2022] Open
Abstract
Emerging evidence shows a striking link between periodontal diseases and various human cancers including oral cancer. And periodontal pathogens, leading to periodontal diseases development, may serve a crucial role in oral cancer. This review elucidated the molecular mechanisms of periodontal pathogens in oral cancer. The pathogens directly engage in their own unique molecular dialogue with the host epithelium to acquire cancer phenotypes, and indirectly induce a proinflammatory environment and carcinogenic substance in favor of cancer development. And functional, rather than compositional, properties of oral microbial community correlated with cancer development are discussed. The effect of periodontal pathogens on periodontal diseases and oral cancer will further detail the pathogenesis of oral cancer and intensify the need of maintaining oral hygiene for the prevention of oral diseases including oral cancer.
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Affiliation(s)
- Tian-Jiao Li
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yi-hang Hao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ya-ling Tang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Oral Pathology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xin-hua Liang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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17
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RNA Sequencing Reveals the Upregulation of FOXO Signaling Pathway in Porphyromonas gingivalis Persister-Treated Human Gingival Epithelial Cells. Int J Mol Sci 2022; 23:ijms23105728. [PMID: 35628542 PMCID: PMC9146424 DOI: 10.3390/ijms23105728] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/16/2022] [Accepted: 05/18/2022] [Indexed: 02/04/2023] Open
Abstract
Porphyromonas gingivalis as the keystone periodontopathogen plays a critical role in the pathogenesis of periodontitis, and crucially accounts for inflammatory comorbidities such as cardiovascular disease and Alzheimer's disease. We recently identified the existence of P. gingivalis persisters and revealed the unforeseen perturbation of innate response in human gingival epithelial cells (HGECs) due to these noxious persisters. Herein, RNA sequencing revealed how P. gingivalis persisters affected the expression profile of cytokine genes and related signaling pathways in HGECs. Results showed that metronidazole-treated P. gingivalis persisters (M-PgPs) impaired the innate host defense of HGECs, in a similar fashion to P. gingivalis. Notably, over one thousand differentially expressed genes were identified in HGECs treated with M-PgPs or P. gingivalis with reference to the controls. Gene Ontology and KEGG pathway analysis demonstrated significantly enriched signaling pathways, such as FOXO. Importantly, the FOXO1 inhibitor rescued the M-PgP-induced disruption of cytokine expression. This study suggests that P. gingivalis persisters may perturb innate host defense, through the upregulation of the FOXO signaling pathway. Thus, the current findings could contribute to developing new approaches to tackling P. gingivalis persisters for the effective control of periodontitis and P. gingivalis-related inflammatory comorbidities.
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18
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Lamont RJ, Fitzsimonds ZR, Wang H, Gao S. Role of Porphyromonas gingivalis in oral and orodigestive squamous cell carcinoma. Periodontol 2000 2022; 89:154-165. [PMID: 35244980 DOI: 10.1111/prd.12425] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Oral and esophageal squamous cell carcinomas harbor a diverse microbiome that differs compositionally from precancerous and healthy tissues. Though causality is yet to be definitively established, emerging trends implicate periodontal pathogens such as Porphyromonas gingivalis as associated with the cancerous state. Moreover, infection with P. gingivalis correlates with a poor prognosis, and P. gingivalis is oncopathogenic in animal models. Mechanistically, properties of P. gingivalis that have been established in vitro and could promote tumor development include induction of a dysbiotic inflammatory microenvironment, inhibition of apoptosis, increased cell proliferation, enhanced angiogenesis, activation of epithelial-to-mesenchymal transition, and production of carcinogenic metabolites. The microbial community context is also relevant to oncopathogenicity, and consortia of P. gingivalis and Fusobacterium nucleatum are synergistically pathogenic in oral cancer models in vivo. In contrast, oral streptococci, such as Streptococcus gordonii, can antagonize protumorigenic epithelial cell phenotypes induced by P. gingivalis, indicating functionally specialized roles for bacteria in oncogenic communities. Consistent with the notion of the bacterial community constituting the etiologic unit, metatranscriptomic data indicate that functional, rather than compositional, properties of the tumor-associated communities have more relevance to cancer development. A consistent association of P. gingivalis with oral and orodigestive carcinoma could have diagnostic potential for early detection of these conditions that have a high incidence and low survival rates.
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Affiliation(s)
- Richard J Lamont
- Department of Oral Immunology and Infectious Diseases, University of Louisville School of Dentistry, Louisville, Kentucky, USA
| | - Zackary R Fitzsimonds
- Department of Oral Immunology and Infectious Diseases, University of Louisville School of Dentistry, Louisville, Kentucky, USA
| | - Huizhi Wang
- Department of Oral and Craniofacial Molecular Biology, VCU School of Dentistry, Richmond, Virginia, USA
| | - Shegan Gao
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
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19
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Abstract
Inflammasomes are multiprotein complexes that assemble in host cells upon recognition of infection or danger via pattern recognition receptors and/or danger recognition receptors. The assembly of inflammasomes results in the activation of caspase-1 and is followed by the enzymatic maturation and secretion of inflammatory cytokines like interleukin 1β (IL-1β) and IL-18.In the oral cavity, gingival epithelial cells (GECs) line the mucosa and have a barrier role for invading pathogens. In these cells, the NLRP3 inflammasome is the best studied and has been shown to play a role in the inflammatory immune response against a variety of oral pathogens. As such, in order to study gingivitis and other oral pathologic inflammatory conditions, studying the activation of inflammasomes is important. The simplest way to detect inflammasome activation is to detect the activated caspase-1, as well as the secretion of mature IL-1β and IL-18, via ELISA, Western blot, and immunofluorescence techniques.Here we describe the detection of NLRP3 inflammasome activation by the oral pathogen Porphyromonas gingivalis in human GECs via these three methods and mention other methods and techniques that we have successfully used together with these in our quest to understand the host-pathogen interaction.
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Affiliation(s)
- Kalina R Atanasova
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Özlem Yilmaz
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, SC, USA.
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA.
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20
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Singh S, Singh AK. Porphyromonas gingivalis in oral squamous cell carcinoma: A review. Microbes Infect 2021; 24:104925. [PMID: 34883247 DOI: 10.1016/j.micinf.2021.104925] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 11/15/2021] [Accepted: 11/30/2021] [Indexed: 12/26/2022]
Abstract
Oral cancer contributes significantly to the global cancer burden. Oral bacteria play an important role in the spread of oral cancer, according to mounting evidence. The most proven instance is the carcinogenic implications of Porphyromonas gingivalis, a key pathogen in chronic periodontitis. It is imperative to understand the pathogenesis of P. gingivalis in OSCC. This review aims to gather and assess scientific shreds of evidence on the involvement of Porphyromonas gingivalis in the molecular mechanism of oral squamous cell carcinoma.
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Affiliation(s)
- Suchitra Singh
- Department of Bioinformatics, Central University of South Bihar, Gaya, India
| | - Ajay Kumar Singh
- Department of Bioinformatics, Central University of South Bihar, Gaya, India.
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21
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Vyhnalova T, Danek Z, Gachova D, Linhartova PB. The Role of the Oral Microbiota in the Etiopathogenesis of Oral Squamous Cell Carcinoma. Microorganisms 2021; 9:microorganisms9081549. [PMID: 34442627 PMCID: PMC8400438 DOI: 10.3390/microorganisms9081549] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/13/2021] [Accepted: 07/16/2021] [Indexed: 02/07/2023] Open
Abstract
Dysbiosis in the oral environment may play a role in the etiopathogenesis of oral squamous cell carcinoma (OSCC). This review aims to summarize the current knowledge about the association of oral microbiota with OSCC and to describe possible etiopathogenetic mechanisms involved in processes of OSCC development and progression. Association studies included in this review were designed as case–control/case studies, analyzing the bacteriome, mycobiome, and virome from saliva, oral rinses, oral mucosal swabs, or oral mucosal tissue samples (deep and superficial) and comparing the results in healthy individuals to those with OSCC and/or with premalignant lesions. Changes in relative abundances of specific bacteria (e.g., Porphyromonas gingivalis, Fusobacterium nucleatum, Streptococcus sp.) and fungi (especially Candida sp.) were associated with OSCC. Viruses can also play a role; while the results of studies investigating the role of human papillomavirus in OSCC development are controversial, Epstein–Barr virus was positively correlated with OSCC. The oral microbiota has been linked to tumorigenesis through a variety of mechanisms, including the stimulation of cell proliferation, tumor invasiveness, angiogenesis, inhibition of cell apoptosis, induction of chronic inflammation, or production of oncometabolites. We also advocate for the necessity of performing a complex analysis of the microbiome in further studies and of standardizing the sampling procedures by establishing guidelines to support future meta-analyses.
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Affiliation(s)
- Tereza Vyhnalova
- Environmental Genomics Research Group, RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.V.); (D.G.); (P.B.L.)
- Department of Maxillofacial Surgery, Faculty of Medicine, Masaryk University, Jihlavská 20, 62500 Brno, Czech Republic
| | - Zdenek Danek
- Environmental Genomics Research Group, RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.V.); (D.G.); (P.B.L.)
- Department of Maxillofacial Surgery, Faculty of Medicine, Masaryk University, Jihlavská 20, 62500 Brno, Czech Republic
- Department of Maxillofacial Surgery, University Hospital Brno, Jihlavská 20, 62500 Brno, Czech Republic
- Correspondence: ; Tel.: +420-777-550-596
| | - Daniela Gachova
- Environmental Genomics Research Group, RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.V.); (D.G.); (P.B.L.)
| | - Petra Borilova Linhartova
- Environmental Genomics Research Group, RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.V.); (D.G.); (P.B.L.)
- Department of Maxillofacial Surgery, Faculty of Medicine, Masaryk University, Jihlavská 20, 62500 Brno, Czech Republic
- Institute of Medical Genetics and Genomics, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
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22
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Progress in Oral Microbiome Related to Oral and Systemic Diseases: An Update. Diagnostics (Basel) 2021; 11:diagnostics11071283. [PMID: 34359364 PMCID: PMC8306157 DOI: 10.3390/diagnostics11071283] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/09/2021] [Accepted: 07/14/2021] [Indexed: 02/07/2023] Open
Abstract
The human oral microbiome refers to an ecological community of symbiotic and pathogenic microorganisms found in the oral cavity. The oral cavity is an environment that provides various biological niches, such as the teeth, tongue, and oral mucosa. The oral cavity is the gateway between the external environment and the human body, maintaining oral homeostasis, protecting the mouth, and preventing disease. On the flip side, the oral microbiome also plays an important role in the triggering, development, and progression of oral and systemic diseases. In recent years, disease diagnosis through the analysis of the human oral microbiome has been realized with the recent development of innovative detection technology and is overwhelmingly promising compared to the previous era. It has been found that patients with oral and systemic diseases have variations in their oral microbiome compared to normal subjects. This narrative review provides insight into the pathophysiological role that the oral microbiome plays in influencing oral and systemic diseases and furthers the knowledge related to the oral microbiome produced over the past 30 years. A wide range of updates were provided with the latest knowledge of the oral microbiome to help researchers and clinicians in both academic and clinical aspects. The microbial community information can be utilized in non-invasive diagnosis and can help to develop a new paradigm in precision medicine, which will benefit human health in the era of post-metagenomics.
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23
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Abstract
Epithelia are structurally integral elements in the fabric of oral mucosa with significant functional roles. Similarly, the gingival epithelium performs uniquely critical tasks in responding to a variety of external stimuli and dangers through the regulation of specific built-in molecular mechanisms in a context-dependent fashion at cellular levels. Gingival epithelial cells form an anatomic architecture that confers defense, robustness, and adaptation toward external aggressions, most critically to colonizing microorganisms, among other functions. Accordingly, recent studies unraveled previously uncharacterized response mechanisms in gingival epithelial cells that are constructed to rapidly exert biocidal effects against invader pathobiotic bacteria, such as Porphyromonas gingivalis, through small danger molecule signaling. The host-adapted bacteria, however, have developed adroit strategies to 1) exploit the epithelia as privileged growth niches and 2) chronically target cellular bactericidal and homeostatic metabolic pathways for successful bacterial persistence. As the overgrowth of colonizing microorganisms in the gingival mucosa can shift from homeostasis to dysbiosis or a diseased state, it is crucial to understand how the innate modulatory molecules are intricately involved in antibacterial pathways and how they shape susceptibility versus resistance in the epithelium toward pathogens. Thus, in this review, we highlight recent discoveries in gingival epithelial cell research in the context of bacterial colonizers. The current knowledge outlined here demonstrates the ability of epithelial cells to possess highly organized defense machineries, which can jointly regulate host-derived danger molecule signaling and integrate specific global responses against opportunistic bacteria to combat microbial incursion and maintain host homeostatic balance. These novel examples collectively suggest that the oral epithelia are equipped with a dynamically robust and interconnected defense system encompassing sensors and various effector molecules that arrange and achieve a fine-tuned and advanced response to diverse bacteria.
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Affiliation(s)
- J.S. Lee
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Ö. Yilmaz
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, SC, USA
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
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24
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Lee JS, Chowdhury N, Roberts JS, Yilmaz Ö. Host surface ectonucleotidase-CD73 and the opportunistic pathogen, Porphyromonas gingivalis, cross-modulation underlies a new homeostatic mechanism for chronic bacterial survival in human epithelial cells. Virulence 2021; 11:414-429. [PMID: 32419582 PMCID: PMC7239027 DOI: 10.1080/21505594.2020.1763061] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cell surface nucleotide-metabolizing enzyme, ectonucleotidase-CD73, has emerged as a central component of the cellular homeostatic-machinery that counterbalances the danger-molecule (extracellular-ATP)-driven proinflammatory response in immune cells. While the importance of CD73 in microbial host fitness and symbiosis is gradually being unraveled, there remains a significant gap in knowledge of CD73 and its putative role in epithelial cells. Here, we depict a novel host-pathogen adaptation mechanism where CD73 takes a center role in the intracellular persistence of Porphyromonas gingivalis, a major colonizer of oral mucosa, using human primary gingival epithelial cell (GEC) system. Temporal analyses revealed, upon invasion into the GECs, P. gingivalis can significantly elevate the host-surface CD73 activity and expression. The enhanced and active CD73 significantly increases P. gingivalis intracellular growth in the presence of substrate-AMP and simultaneously acts as a negative regulator of reactive oxygen species (ROS) generation upon eATP treatment. The inhibition of CD73 by siRNA or by a specific inhibitor markedly increases ROS production. Moreover, CD73 and P. gingivalis cross-signaling significantly modulates pro-inflammatory interleukin-6 (IL-6) in the GECs. Conversely, exogenous treatment of the infected GECs with IL-6 suppresses the intracellular bacteria via amplified ROS generation. However, the decreased bacterial levels can be restored by overexpressing functionally active CD73. Together, these findings illuminate how the local extracellular-purine-metabolism, in which CD73 serves as a core molecular switch, can alter intracellular microbial colonization resistance. Further, host-adaptive pathogens such as P. gingivalis can target host ectonucleotidases to disarm specific innate defenses for successful intracellular persistence in mucosal epithelia.
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Affiliation(s)
- Jaden S Lee
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Nityananda Chowdhury
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - JoAnn S Roberts
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Özlem Yilmaz
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, SC, USA.,Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
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25
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Mei F, Xie M, Huang X, Long Y, Lu X, Wang X, Chen L. Porphyromonas gingivalis and Its Systemic Impact: Current Status. Pathogens 2020; 9:pathogens9110944. [PMID: 33202751 PMCID: PMC7696708 DOI: 10.3390/pathogens9110944] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/24/2020] [Accepted: 11/03/2020] [Indexed: 02/06/2023] Open
Abstract
The relationship between periodontitis and systemic diseases, notably including atherosclerosis and diabetes, has been studied for several years. Porphyromonas gingivalis, a prominent component of oral microorganism communities, is the main pathogen that causes periodontitis. As a result of the extensive analysis of this organism, the evidence of its connection to systemic diseases has become more apparent over the last decade. A significant amount of research has explored the role of Porphyromonas gingivalis in atherosclerosis, Alzheimer's disease, rheumatoid arthritis, diabetes, and adverse pregnancy outcomes, while relatively few studies have examined its contribution to respiratory diseases, nonalcoholic fatty liver disease, and depression. Here, we provide an overview of the current state of knowledge about Porphyromonas gingivalis and its systemic impact in an aim to inform readers of the existing epidemiological evidence and the most recent preclinical studies. Additionally, the possible mechanisms by which Porphyromonas gingivalis is involved in the onset or exacerbation of diseases, together with its effects on systemic health, are covered. Although a few results remain controversial, it is now evident that Porphyromonas gingivalis should be regarded as a modifiable factor for several diseases.
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Affiliation(s)
- Feng Mei
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (F.M.); (M.X.); (X.H.); (Y.L.); (X.L.)
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Mengru Xie
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (F.M.); (M.X.); (X.H.); (Y.L.); (X.L.)
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Xiaofei Huang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (F.M.); (M.X.); (X.H.); (Y.L.); (X.L.)
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Yanlin Long
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (F.M.); (M.X.); (X.H.); (Y.L.); (X.L.)
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Xiaofeng Lu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (F.M.); (M.X.); (X.H.); (Y.L.); (X.L.)
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Xiaoli Wang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Correspondence: (X.W.); (L.C.)
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (F.M.); (M.X.); (X.H.); (Y.L.); (X.L.)
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
- Correspondence: (X.W.); (L.C.)
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26
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Li Q, Hu Y, Zhou X, Liu S, Han Q, Cheng L. Role of Oral Bacteria in the Development of Oral Squamous Cell Carcinoma. Cancers (Basel) 2020; 12:cancers12102797. [PMID: 33003438 PMCID: PMC7600411 DOI: 10.3390/cancers12102797] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/17/2020] [Accepted: 09/24/2020] [Indexed: 12/13/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) is an invasive epithelial neoplasm that is influenced by various risk factors, with a low survival rate and an increasing death rate. In the past few years, with the verification of the close relationship between different types of cancers and the microbiome, research has focused on the compositional changes of oral bacteria and their role in OSCC. Generally, oral bacteria can participate in OSCC development by promoting cell proliferation and angiogenesis, influencing normal apoptosis, facilitating invasion and metastasis, and assisting cancer stem cells. The study findings on the association between oral bacteria and OSCC may provide new insight into methods for early diagnosis and treatment development.
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Affiliation(s)
| | | | | | | | - Qi Han
- Correspondence: (Q.H.); (L.C.)
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27
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Lee JS, Spooner R, Chowdhury N, Pandey V, Wellslager B, Atanasova KR, Evans Z, Yilmaz Ö. In Situ Intraepithelial Localizations of Opportunistic Pathogens, Porphyromonas gingivalis and Filifactor alocis, in Human Gingiva. CURRENT RESEARCH IN MICROBIAL SCIENCES 2020; 1:7-17. [PMID: 34308393 PMCID: PMC8294339 DOI: 10.1016/j.crmicr.2020.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The gingival epithelium serves as a growth reservoir for opportunistic bacteria. Intraepithelial P. gingivalis and F. alocis colonies are detected together in dysbiotic mucosa. Increased metabolically active dual species can lead to higher microvasculature. Invasion of intraepithelial microvessels leads to systemic pathogen dissemination.
Porphyromonas gingivalis and Filifactor alocis are fastidious oral pathogens and etiological agents associated with chronic periodontitis. Although previous studies showed increased levels of the two obligate anaerobic species in periodontitis patients, methodologies for this knowledge were primarily limited to sampling subgingival plaque, saliva, or gingival crevicular fluid. To evaluate the extent to which P. gingivalis and F. alocis may invade the periodontal tissues, an in situ cross-sectional study was comparatively conducted on the gingival biopsy specimens of patients diagnosed with periodontal health or chronic periodontitis. Immunostained tissue sections for each organism were imaged by Super-Resolution Confocal Scanning Microscopy to determine the relative presence and localization of target bacterial species. Fluorescence-in-situ-hybridization (FISH) coupled with species specific 16S rRNA method was utilized to confirm whether detected bacteria were live within the tissue. In periodontitis, P. gingivalis and F. alocis revealed similarly concentrated localization near the basement membrane or external basal lamina of the gingival epithelium. The presence of both bacteria was significantly increased in periodontitis vs. healthy tissue. However, P. gingivalis was still detected to an extent in health tissue, while only minimal levels of F. alocis were spotted in health. Additionally, the micrographic analyses displayed heightened formation of epithelial microvasculature containing significantly co-localized and metabolically active dual species within periodontitis tissue. Thus, this study demonstrates, for the first-time, spatial arrangements of P. gingivalis and F. alocis in both single and co-localized forms within the complex fabric of human gingiva during health and disease. It also exhibits critical visualizations of co-invaded microvascularized epithelial layer of the tissue by metabolically active P. gingivalis and F. alocis from patients with severe periodontitis. These findings collectively uncover novel visual evidence of a potential starting point for systemic spread of opportunistic bacteria during their chronic colonization in gingival epithelium.
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Affiliation(s)
- Jaden S Lee
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, 29425, USA
| | - Ralee Spooner
- Department of Stomatology, Division of Periodontics, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, 29425, USA.,Lieutenant, Dental Corps, United States Navy, Marine Corps Air Ground Combat Center, Twentynine Palms, California, 92278, USA
| | - Nityananda Chowdhury
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, 29425, USA
| | - Vivek Pandey
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, 29425, USA
| | - Bridgette Wellslager
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, 29425, USA
| | - Kalina R Atanasova
- Department of Periodontology, University of Florida, Gainesville, Florida, 32611, USA
| | - Zachary Evans
- Department of Stomatology, Division of Periodontics, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, 29425, USA
| | - Özlem Yilmaz
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, 29425, USA.,Department of Microbiology & Immunology, Medical University of South Carolina, Charleston, South Carolina, 29425, USA
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28
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Fitzsimonds ZR, Rodriguez-Hernandez CJ, Bagaitkar J, Lamont RJ. From Beyond the Pale to the Pale Riders: The Emerging Association of Bacteria with Oral Cancer. J Dent Res 2020; 99:604-612. [PMID: 32091956 DOI: 10.1177/0022034520907341] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Oral cancer, predominantly oral squamous cell carcinoma (OSCC), is the eighth-most common cancer worldwide, with a 5-y survival rate <50%. There are numerous risk factors for oral cancer, among which periodontal disease is gaining increasing recognition. The creation of a sustained dysbiotic proinflammatory environment by periodontal bacteria may serve to functionally link periodontal disease and oral cancer. Moreover, traditional periodontal pathogens, such as Porphyromonas gingivalis, Fusobacterium nucleatum, and Treponema denticola, are among the species most frequently identified as being enriched in OSCC, and they possess a number of oncogenic properties. These organisms share the ability to attach and invade oral epithelial cells, and from there each undergoes its own unique molecular dialogue with the host epithelium, which ultimately converges on acquired phenotypes associated with cancer, including inhibition of apoptosis, increased proliferation, and activation of epithelial-to-mesenchymal transition leading to increased migration of epithelial cells. Additionally, emerging properties of structured bacterial communities may increase oncogenic potential, and consortia of P. gingivalis and F. nucleatum are synergistically pathogenic within in vivo oral cancer models. Interestingly, however, some species of oral streptococci can antagonize the phenotypes induced by P. gingivalis, indicating functionally specialized roles for bacteria in oncogenic communities. Transcriptomic data support the concept that functional, rather than compositional, properties of oral bacterial communities have more relevance to cancer development. Collectively, the evidence is consistent with a modified polymicrobial synergy and dysbiosis model for bacterial involvement in OSCC, with driver mutations generating a conducive microenvironment on the epithelial boundary, which becomes further dysbiotic by the synergistic action of bacterial communities.
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Affiliation(s)
- Z R Fitzsimonds
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - C J Rodriguez-Hernandez
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - J Bagaitkar
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - R J Lamont
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
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29
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Wang CM, Hong LH, Zhang ZM, Wang Y. [Research progress on the relationship between Porphyromonas gingivalis and the malignancy of the digestive system and possible pathogenetic mechanism]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2019; 37:521-526. [PMID: 31721501 DOI: 10.7518/hxkq.2019.05.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The malignant tumors including oral cancer, colorectal cancer, pancreatic cancer, and esophageal cancer, of the digestive system are a common high-fatal malignancy. Porphyromonas gingivalis, as the most important pathogen of periodontal disease, has been gradually proved that its invasiveness occurs not only in the mouth but also in other parts of the digestive system. Moreover, the relevant pathogenic mechanism is increasingly attracting the reseachers' attention. In this study, the role and possible pathogenesis of Porphyromonas gingivalis in the digestive system are described in a systematic and comprehensive way.
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Affiliation(s)
- Chun-Meng Wang
- Dept. of Endodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Li-Hua Hong
- Dept. of Endodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Zhi-Min Zhang
- Dept. of Endodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Yu Wang
- Dept. of Gastroenterology, The First Hospital of Jilin University, Changchun 130021, China
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30
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Zhou Y, Luo GH. Porphyromonas gingivalis and digestive system cancers. World J Clin Cases 2019; 7:819-829. [PMID: 31024953 PMCID: PMC6473131 DOI: 10.12998/wjcc.v7.i7.819] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/26/2019] [Accepted: 03/11/2019] [Indexed: 02/05/2023] Open
Abstract
Porphyromonas gingivalis (P. gingivalis) is an anaerobic gram-negative bacterium that colonizes in the epithelium and has been strongly associated with periodontal disease. Recently, various degrees of associations between P. gingivalis and digestive system cancers, including oral squamous cell carcinoma in the oral cavity, oesophageal squamous carcinoma in the digestive tract, and pancreatic cancer in pancreatic tissues, have been displayed in multiple clinical and experimental studies. Since P. gingivalis has a strong association with periodontal diseases, not only the relationships between P. gingivalis and digestive system tumours but also the effects induced by periodontal diseases on cancers are well-illustrated in this review. In addition, the prevention and possible treatments for these digestive system tumours induced by P. gingivalis infection are also included in this review. At the end, we also highlighted the possible mechanisms of cancers caused by P. gingivalis. One important carcinogenic effect of P. gingivalis is inhibiting the apoptosis of epithelial cells, which also plays an intrinsic role in protecting cancerous cells. Some signalling pathways activated by P. gingivalis are involved in cell apoptosis, tumourigenesis, immune evasion and cell invasion of tumour cells. In addition, metabolism of potentially carcinogenic substances caused by P. gingivalis is also one of the connections between this bacterium and cancers.
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Affiliation(s)
- Ying Zhou
- Comprehensive Laboratory, the Third Affiliated Hospital of Soochow University, Changzhou 213003, Jiangsu Province, China
| | - Guang-Hua Luo
- Comprehensive Laboratory, the Third Affiliated Hospital of Soochow University, Changzhou 213003, Jiangsu Province, China
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31
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Menzel LP, Ruddick W, Chowdhury MH, Brice DC, Clance R, Porcelli E, Ryan LK, Lee J, Yilmaz Ö, Kirkwood KL, McMahon L, Tran A, Diamond G. Activation of vitamin D in the gingival epithelium and its role in gingival inflammation and alveolar bone loss. J Periodontal Res 2019; 54:444-452. [PMID: 30802957 DOI: 10.1111/jre.12646] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 01/15/2019] [Accepted: 02/06/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND OBJECTIVE Both chronic and aggressive periodontal disease are associated with vitamin D deficiency. The active form of vitamin D, 1,25(OH)2 D3 , induces the expression of the antimicrobial peptide LL-37 and innate immune mediators in cultured human gingival epithelial cells (GECs). The aim of this study was to further delineate the mechanism by which vitamin D enhances the innate defense against the development of periodontal disease (PD). MATERIALS AND METHODS Wild-type C57Bl/6 mice were made deficient in vitamin D by dietary restriction. Cultured primary and immortalized GEC were stimulated with 1,25(OH)2 D3 , followed by infection with Porphyromonas gingivalis, and viable intracellular bacteria were quantified. Conversion of vitamin D3 to 25(OH)D3 and 1,25(OH)2 D3 was quantified by ELISA. Effect of vitamin D on basal IL-1α expression in mice was determined by topical administration to the gingiva of wild-type mice, followed by qRT-PCR. RESULTS Dietary restriction of vitamin D led to alveolar bone loss and increased inflammation in the gingiva in the mouse model. In primary human GEC and established human cell lines, treatment of GEC with 1,25(OH)2 D3 inhibited the intracellular growth of P. gingivalis. Cultured GEC expressed two 25-hydroxylases (CYP27A1 and CYP2R1), as well as 1-α hydroxylase, enabling conversion of vitamin D to both 25(OH)D3 and 1,25(OH)2 D3 . Topical application of both vitamin D3 and 1,25(OH)2 D3 to the gingiva of mice led to rapid inhibition of IL-1α expression, a prominent pro-inflammatory cytokine associated with inflammation, which also exhibited more than a 2-fold decrease from basal levels in OKF6/TERT1 cells upon 1,25(OH)2 D3 treatment, as determined by RNA-seq. CONCLUSION Vitamin D deficiency in mice contributes to PD, recapitulating the association seen in humans, and provides a unique model to study the development of PD. Vitamin D increases the activity of GEC against the invasion of periodontal pathogens and inhibits the inflammatory response, both in vitro and in vivo. GEC can convert inactive vitamin D to the active form in situ, supporting the hypothesis that vitamin D can be applied directly to the gingiva to prevent or treat periodontal disease.
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Affiliation(s)
- Lorenzo P Menzel
- Department of Oral Biology, University of Florida, Gainesville, Florida
| | - Willam Ruddick
- Department of Oral Biology, University of Florida, Gainesville, Florida
| | | | - David C Brice
- Department of Oral Biology, University of Florida, Gainesville, Florida
| | - Ryan Clance
- Department of Oral Biology, University of Florida, Gainesville, Florida
| | - Emily Porcelli
- Department of Oral Biology, University of Florida, Gainesville, Florida
| | - Lisa K Ryan
- Division of Infectious Diseases and Global Medicine, Department of Medicine, University of Florida College of Medicine, Gainesville, Florida
| | - Jungnam Lee
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, Florida
| | - Özlem Yilmaz
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, South Carolina.,Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina
| | - Keith L Kirkwood
- Department of Oral Biology, State University of New York at Buffalo, Buffalo, New York
| | - Laura McMahon
- Department of Oral Biology, Rutgers New Jersey Dental School, Newark, New Jersey
| | - Amy Tran
- Department of Oral Biology, Rutgers New Jersey Dental School, Newark, New Jersey
| | - Gill Diamond
- Department of Oral Biology, University of Florida, Gainesville, Florida
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32
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Polak D, Zigron A, Eli-Berchoer L, Shapira L, Nussbaum G. Myd88 plays a major role in the keratinocyte response to infection with Porphyromonas gingivalis. J Periodontal Res 2019; 54:396-404. [PMID: 30793777 DOI: 10.1111/jre.12641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 12/11/2018] [Accepted: 01/13/2019] [Indexed: 11/28/2022]
Abstract
AIM To explore the role of keratinocyte myeloid differentiation primary response 88 (MyD88) expression in the adhesion of Porphyromonas gingivalis to the cells and its subsequent invasion and intracellular survival. MATERIALS AND METHODS Primary mouse keratinocytes from wild-type (WT) or Myd88-/- mice were infected with P gingivalis alone or co-infected with Fusobacterium nucleatum. Bacterial adhesion and invasion were measured using fluorescent microscopy and flow cytometry, and intracellular survival in keratinocytes was quantified by an antibiotic protection assay. Keratinocyte expression of antimicrobial peptides was measured by real-time PCR. RESULTS In the absence of MyD88, P gingivalis adherence, invasion, and intracellular survival were enhanced compared with WT keratinocytes. The presence of F nucleatum during infection increased the adhesion of P gingivalis to WT keratinocytes but reduced the adhesion to Myd88-/- keratinocytes. Fusobacterium nucleatum improved mildly the invasion and survival of P gingivalis in both cell types. Baseline expression of beta-defensin 2, 3, 4 and RegIII-γ was elevated in Myd88-/- keratinocytes compared to WT cells; however, following infection beta-defensin expression was strongly induced in WT cells but decreased dramatically in the MyD88 deficient cells. CONCLUSION In the absence of MyD88 expression, P gingivalis adhesion to keratinocytes is improved, and invasion and intracellular survival are increased. Furthermore, keratinocyte infection by P gingivalis induces antimicrobial peptide expression in a MyD88-dependent manner. Thus, MyD88 plays a key role in the interaction between P gingivalis and keratinocytes.
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Affiliation(s)
- David Polak
- Department of Periodontology, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel
| | - Asaf Zigron
- Department of Periodontology, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel.,Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel
| | - Luba Eli-Berchoer
- Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel
| | - Lior Shapira
- Department of Periodontology, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel
| | - Gabriel Nussbaum
- Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem, Israel
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33
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Olsen I, Yilmaz Ö. Possible role of Porphyromonas gingivalis in orodigestive cancers. J Oral Microbiol 2019; 11:1563410. [PMID: 30671195 PMCID: PMC6327928 DOI: 10.1080/20002297.2018.1563410] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/11/2018] [Accepted: 12/15/2018] [Indexed: 02/07/2023] Open
Abstract
There is increasing evidence for an association between periodontitis/tooth loss and oral, gastrointestinal, and pancreatic cancers. Periodontal disease, which is characterized by chronic inflammation and microbial dysbiosis, is a significant risk factor for orodigestive carcinogenesis. Porphyromonas gingivalis is proposed as a keystone pathogen in chronic periodontitis causing both dysbiosis and discordant immune response. The present review focuses on the growing recognition of a relationship between P. gingivalis and orodigestive cancers. Porphyromonas gingivalis has been recovered in abundance from oral squamous cell carcinoma (OSCC). Recently established tumorigenesis models have indicated a direct relationship between P. gingivalis and carcinogenesis. The bacterium upregulates specific receptors on OSCC cells and keratinocytes, induces epithelial-to-mesenchymal (EMT) transition of normal oral epithelial cells and activates metalloproteinase-9 and interleukin-8 in cultures of the carcinoma cells. In addition, P. gingivalis accelerates cell cycling and suppresses apoptosis in cultures of primary oral epithelial cells. In oral cancer cells, the cell cycle is arrested and there is no effect on apoptosis, but macro autophagy is increased. Porphyromonas gingivalis promotes distant metastasis and chemoresistance to anti-cancer agents and accelerates proliferation of oral tumor cells by affecting gene expression of defensins, by peptidyl-arginine deiminase and noncanonical activation of β-catenin. The pathogen also converts ethanol to the carcinogenic intermediate acetaldehyde. In addition, P. gingivalis can be implicated in precancerous gastric and colon lesions, esophageal squamous cell carcinoma, head and neck (larynx, throat, lip, mouth and salivary glands) carcinoma, and pancreatic cancer. The fact that distant organs can be involved clearly emphasizes that P. gingivalis has systemic tumorigenic effects in addition to the local effects in its native territory, the oral cavity. Although coinfection with other bacteria, viruses, and fungi occurs in periodontitis, P. gingivalis relates to cancer even in absence of periodontitis. Thus, there may be a direct relationship between P. gingivalis and orodigestive cancers.
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Affiliation(s)
- Ingar Olsen
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway
| | - Özlem Yilmaz
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, SC, USA
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34
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Lee K, Roberts JS, Choi CH, Atanasova KR, Yilmaz Ö. Porphyromonas gingivalis traffics into endoplasmic reticulum-rich-autophagosomes for successful survival in human gingival epithelial cells. Virulence 2018; 9:845-859. [PMID: 29616874 PMCID: PMC5955440 DOI: 10.1080/21505594.2018.1454171] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Porphyromonas gingivalis, an opportunistic pathogen usurps gingival epithelial cells (GECs) as primary intracellular niche for its colonization in the oral mucosa. However, the precise characterization of the intracellular trafficking and fate of P. gingivalis in GECs remains incomplete. Therefore, we employed high-resolution three-dimensional-transmission-electron-microscopy to determine the subcellular location of P. gingivalis in human primary GECs upon invasion. Serial sections of infected-GECs and their tomographic reconstruction depicted ER-rich-double-membrane autophagosomal-vacuoles harboring P. gingivalis. Western-blotting and fluorescence confocal microscopy showed that P. gingivalis significantly induces LC3-lipidation in a time-dependent-manner and co-localizes with LC3, ER-lumen-protein Bip, or ER-tracker, which are major components of the phagophore membrane. Furthermore, GECs that were infected with FMN-green-fluorescent transformant-strain (PgFbFP) and selectively permeabilized by digitonin showed rapidly increasing large numbers of double-membrane-vacuolar-P. gingivalis over 24 hours of infection with a low-ratio of cytosolically free-bacteria. Moreover, inhibition of autophagy using 3-methyladenine or ATG5 siRNA significantly reduced the viability of intracellular P. gingivalis in GECs as determined by an antibiotic-protection-assay. Lysosomal marker, LAMP-1, showed a low-degree colocalization with P. gingivalis (∼20%). PgFbFP was used to investigate the fate of vacuolar- versus cytosolic-P. gingivalis by their association with ubiquitin-binding-adaptor-proteins, NDP52 and p62. Only cytosolic-P. gingivalis had a significant association with both markers, which suggests cytosolically-free bacteria are likely destined to the lysosomal-degradation pathway whereas the vacuolar-P. gingivalis survives. Therefore, the results reveal a novel mechanism for P. gingivalis survival in GECs by harnessing host autophagy machinery to establish a successful replicative niche and persistence in the oral mucosa.
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Affiliation(s)
- Kyulim Lee
- a Department of Oral Biology , University of Florida , Gainesville , Florida , USA
| | - JoAnn S Roberts
- b Department of Oral Health Sciences , Medical University of South Carolina , Charleston , South Carolina , USA
| | - Chul Hee Choi
- c Department of Microbiology and Medical Science , Chungnam National University, School of Medicine , Daejeon , Republic of Korea
| | - Kalina R Atanasova
- d Department of Periodontology , University of Florida , Gainesville , Florida , USA
| | - Özlem Yilmaz
- b Department of Oral Health Sciences , Medical University of South Carolina , Charleston , South Carolina , USA.,e Microbiology and Immunology, Medical University of South Carolina , South Carolina , USA
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