151
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Triarico S, Agresti P, Rinninella E, Mele MC, Romano A, Attinà G, Maurizi P, Mastrangelo S, Ruggiero A. Oral Microbiota during Childhood and Its Role in Chemotherapy-Induced Oral Mucositis in Children with Cancer. Pathogens 2022; 11:pathogens11040448. [PMID: 35456122 PMCID: PMC9025665 DOI: 10.3390/pathogens11040448] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/04/2022] [Accepted: 04/07/2022] [Indexed: 11/16/2022] Open
Abstract
The human oral cavity harbors the second most abundant microbiota after the gastrointestinal tract, with over 700 species currently identified in the oral microflora. The oral microbiota develops from intrauterine life and after birth is continuously shaped by several influencing factors. The perturbation of the diversity and proportions of species within the oral microbiota leads to dysbiosis and associated increased risk of local and systemic diseases. In children who receive chemotherapy for cancer, oral mucositis is a common and painful side effect that decreases quality of life (QoL) and treatment adherence. The oral microbiota undergoes a substantial dysbiosis as an effect of cancer and its treatment, characterized by lower richness and less diversity. Furthermore, this dysbiosis seems to promote pro-inflammatory cytokine release and pro-apoptotic mediators, enhancing the oral tissue damage. Further studies on the role of the oral microbiota in the pathogenesis of oral mucositis should be performed among children with cancer who receive chemotherapy, to find preventive and protective factors against the pathogenesis of oral mucositis.
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Affiliation(s)
- Silvia Triarico
- UOSD di Oncologia Pediatrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Argo A. Gemelli 8, 00168 Rome, Italy; (S.T.); (A.R.); (G.A.); (P.M.); (S.M.)
| | - Pierpaolo Agresti
- Scuola di Specializzazione in Pediatria, Università Cattolica del Sacro Cuore, Largo F.sco Vito 1, 00168 Rome, Italy;
| | - Emanuele Rinninella
- UOC di Nutrizione Clinica, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; (E.R.); (M.C.M.)
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Largo F.sco Vito 1, 00168 Rome, Italy
| | - Maria Cristina Mele
- UOC di Nutrizione Clinica, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; (E.R.); (M.C.M.)
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Largo F.sco Vito 1, 00168 Rome, Italy
| | - Alberto Romano
- UOSD di Oncologia Pediatrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Argo A. Gemelli 8, 00168 Rome, Italy; (S.T.); (A.R.); (G.A.); (P.M.); (S.M.)
| | - Giorgio Attinà
- UOSD di Oncologia Pediatrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Argo A. Gemelli 8, 00168 Rome, Italy; (S.T.); (A.R.); (G.A.); (P.M.); (S.M.)
| | - Palma Maurizi
- UOSD di Oncologia Pediatrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Argo A. Gemelli 8, 00168 Rome, Italy; (S.T.); (A.R.); (G.A.); (P.M.); (S.M.)
- Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Largo F.sco Vito 1, 00168 Rome, Italy
| | - Stefano Mastrangelo
- UOSD di Oncologia Pediatrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Argo A. Gemelli 8, 00168 Rome, Italy; (S.T.); (A.R.); (G.A.); (P.M.); (S.M.)
- Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Largo F.sco Vito 1, 00168 Rome, Italy
| | - Antonio Ruggiero
- UOSD di Oncologia Pediatrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Argo A. Gemelli 8, 00168 Rome, Italy; (S.T.); (A.R.); (G.A.); (P.M.); (S.M.)
- Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Largo F.sco Vito 1, 00168 Rome, Italy
- Correspondence: ; Tel.: +39-06-3058203; Fax: +39-06-3052751
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152
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Integration of collagen fibers in connective tissue with dental implant in the transmucosal region. Int J Biol Macromol 2022; 208:833-843. [PMID: 35367473 DOI: 10.1016/j.ijbiomac.2022.03.195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 12/26/2022]
Abstract
Dental implants have been widely accepted as an ideal therapy to replace the missing teeth for its good performance in aspects of mechanical properties and aesthetic outcomes. Its restorative success is contributed by not only the successful osseointegration of the implant but also the tight soft tissue integration, especially the collagen fibers, in the transmucosal region. Soft tissue attaching to the dental implant/abutment is overall similar, but in some aspects distinct with that seen around natural teeth and soft tissue integration can be enhanced via several surface modification methods. This review is going to focus on the current knowledge of the transmucosal zone around the dental implants (compared with natural teeth), and latest strategies in use to fine-tune the collagen fibers assembly in the connective tissue, in an attempt to enhance soft tissue integration.
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153
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Molinero N, Taladrid D, Zorraquín-Peña I, de Celis M, Belda I, Mira A, Bartolomé B, Moreno-Arribas MV. Ulcerative Colitis Seems to Imply Oral Microbiome Dysbiosis. Curr Issues Mol Biol 2022; 44:1513-1527. [PMID: 35723361 PMCID: PMC9164047 DOI: 10.3390/cimb44040103] [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: 02/23/2022] [Revised: 03/19/2022] [Accepted: 03/29/2022] [Indexed: 12/12/2022] Open
Abstract
Ulcerative colitis (UC) is a recurrent pathology of complex etiology that has been occasionally associated with oral lesions, but the overall composition of the oral microbiome in UC patients and its role in the pathogenesis of the disease are still poorly understood. In this study, the oral microbiome of UC patients and healthy individuals was compared to ascertain the possible changes in the oral microbial communities associated with UC. For this, the salivary microbiota of 10 patients diagnosed with an active phase of UC and 11 healthy controls was analyzed by 16S rRNA gene sequencing (trial ref. ISRCTN39987). Metataxonomic analysis revealed a decrease in the alpha diversity and an imbalance in the relative proportions of some key members of the oral core microbiome in UC patients. Additionally, Staphylococcus members and four differential species or phylotypes were only present in UC patients, not being detected in healthy subjects. This study provides a global snapshot of the existence of oral dysbiosis associated with UC, and the possible presence of potential oral biomarkers.
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Affiliation(s)
- Natalia Molinero
- Institute of Food Science Research (CIAL), CSIC-UAM, Campus de Cantoblanco, Nicolás Cabrera 9, 28049 Madrid, Spain; (N.M.); (D.T.); (I.Z.-P.); (B.B.)
| | - Diego Taladrid
- Institute of Food Science Research (CIAL), CSIC-UAM, Campus de Cantoblanco, Nicolás Cabrera 9, 28049 Madrid, Spain; (N.M.); (D.T.); (I.Z.-P.); (B.B.)
| | - Irene Zorraquín-Peña
- Institute of Food Science Research (CIAL), CSIC-UAM, Campus de Cantoblanco, Nicolás Cabrera 9, 28049 Madrid, Spain; (N.M.); (D.T.); (I.Z.-P.); (B.B.)
| | - Miguel de Celis
- Department of Genetics, Physiology and Microbiology, Complutense University of Madrid, 28040 Madrid, Spain; (M.d.C.); (I.B.)
| | - Ignacio Belda
- Department of Genetics, Physiology and Microbiology, Complutense University of Madrid, 28040 Madrid, Spain; (M.d.C.); (I.B.)
| | - Alex Mira
- Center for Advanced Research in Public Health, Department of Health and Genomics, FISABIO Foundation, 46020 Valencia, Spain;
| | - Begoña Bartolomé
- Institute of Food Science Research (CIAL), CSIC-UAM, Campus de Cantoblanco, Nicolás Cabrera 9, 28049 Madrid, Spain; (N.M.); (D.T.); (I.Z.-P.); (B.B.)
| | - M. Victoria Moreno-Arribas
- Institute of Food Science Research (CIAL), CSIC-UAM, Campus de Cantoblanco, Nicolás Cabrera 9, 28049 Madrid, Spain; (N.M.); (D.T.); (I.Z.-P.); (B.B.)
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154
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Kowalski J, Górska R, Cieślik M, Górski A, Jończyk-Matysiak E. What Are the Potential Benefits of Using Bacteriophages in Periodontal Therapy? Antibiotics (Basel) 2022; 11:antibiotics11040446. [PMID: 35453197 PMCID: PMC9027636 DOI: 10.3390/antibiotics11040446] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 01/16/2023] Open
Abstract
Periodontitis, which may result in tooth loss, constitutes both a serious medical and social problem. This pathology, if not treated, can contribute to the development of, among others, pancreatic cancer, cardiovascular diseases or Alzheimer’s disease. The available treatment methods are expensive but not always fully effective. For this reason, the search for and isolation of bacteriophages specific to bacterial strains causing periodontitis seems to be a great opportunity to target persistent colonization by bacterial pathogens and lower the use of antibiotics consequently limiting further development of antibiotic resistance. Furthermore, antimicrobial resistance (AMR) constitutes a growing challenge in periodontal therapy as resistant pathogens may be isolated from more than 70% of patients with periodontitis. The aim of this review is to present the perspective of phage application in the prevention and/or treatment of periodontitis alongside its complicated multifactorial aetiology and emphasize the challenges connecting composition and application of effective phage preparation.
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Affiliation(s)
- Jan Kowalski
- Department of Periodontology and Oral Diseases, Medical University of Warsaw, 02-097 Warsaw, Poland; (J.K.); (R.G.)
| | - Renata Górska
- Department of Periodontology and Oral Diseases, Medical University of Warsaw, 02-097 Warsaw, Poland; (J.K.); (R.G.)
| | - Martyna Cieślik
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (M.C.); (A.G.)
| | - Andrzej Górski
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (M.C.); (A.G.)
- Phage Therapy Unit, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland
- Infant Jesus Hospital, The Medical University of Warsaw, 02-006 Warsaw, Poland
| | - Ewa Jończyk-Matysiak
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (M.C.); (A.G.)
- Correspondence:
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155
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Bacali C, Vulturar R, Buduru S, Cozma A, Fodor A, Chiș A, Lucaciu O, Damian L, Moldovan ML. Oral Microbiome: Getting to Know and Befriend Neighbors, a Biological Approach. Biomedicines 2022; 10:biomedicines10030671. [PMID: 35327473 PMCID: PMC8945538 DOI: 10.3390/biomedicines10030671] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 02/01/2023] Open
Abstract
The oral microbiome, forming a biofilm that covers the oral structures, contains a high number of microorganisms. Biofilm formation starts from the salivary pellicle that allows bacterial adhesion–colonization–proliferation, co-aggregation and biofilm maturation in a complex microbial community. There is a constant bidirectional crosstalk between human host and its oral microbiome. The paper presents the fundamentals regarding the oral microbiome and its relationship to modulator factors, oral and systemic health. The modern studies of oral microorganisms and relationships with the host benefits are based on genomics, transcriptomics, proteomics and metabolomics. Pharmaceuticals such as antimicrobials, prebiotics, probiotics, surface active or abrasive agents and plant-derived ingredients may influence the oral microbiome. Many studies found associations between oral dysbiosis and systemic disorders, including autoimmune diseases, cardiovascular, diabetes, cancers and neurodegenerative disorders. We outline the general and individual factors influencing the host–microbial balance and the possibility to use the analysis of the oral microbiome in prevention, diagnosis and treatment in personalized medicine. Future therapies should take in account the restoration of the normal symbiotic relation with the oral microbiome.
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Affiliation(s)
- Cecilia Bacali
- Department of Prosthodontics and Dental Materials, “Iuliu Hatieganu” University of Medicine and Pharmacy, 32 Clinicilor St., 400006 Cluj-Napoca, Romania; (C.B.); (S.B.)
| | - Romana Vulturar
- Department of Molecular Sciences, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, 6 Pasteur St., 400349 Cluj-Napoca, Romania;
- Cognitive Neuroscience Laboratory, University Babes-Bolyai, 30 Fântânele St., 400294 Cluj-Napoca, Romania
- Correspondence:
| | - Smaranda Buduru
- Department of Prosthodontics and Dental Materials, “Iuliu Hatieganu” University of Medicine and Pharmacy, 32 Clinicilor St., 400006 Cluj-Napoca, Romania; (C.B.); (S.B.)
| | - Angela Cozma
- 4th Medical Department, University of Medicine and Pharmacy “Iuliu Hatieganu” Cluj-Napoca, 18 Republicii St., 400015 Cluj-Napoca, Romania;
| | - Adriana Fodor
- Clinical Center of Diabetes, Nutrition and Metabolic Diseases, “Iuliu Hatieganu” University of Medicine and Pharmacy, 2-4 Clinicilor St., 400012 Cluj-Napoca, Romania;
| | - Adina Chiș
- Department of Molecular Sciences, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, 6 Pasteur St., 400349 Cluj-Napoca, Romania;
- Cognitive Neuroscience Laboratory, University Babes-Bolyai, 30 Fântânele St., 400294 Cluj-Napoca, Romania
| | - Ondine Lucaciu
- Department of Oral Health, University of Medicine and Pharmacy “Iuliu Hatieganu”, 400012 Cluj-Napoca, Romania;
| | - Laura Damian
- Department of Rheumatology, Emergency Clinical County Hospital Cluj, Centre for Rare Autoimmune and Autoinflammatory Diseases, 2-4 Clinicilor St., 400006 Cluj-Napoca, Romania;
- CMI Reumatologie Dr. Damian, 6-8 Petru Maior St., 400002 Cluj-Napoca, Romania
| | - Mirela Liliana Moldovan
- Department of Dermopharmacy and Cosmetics, Faculty of Pharmacy, “Iuliu Hatieganu” University of Medicine and Pharmacy, 12, I. Creanga St., 400010 Cluj-Napoca, Romania;
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156
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Metcalfe S, Anselmi N, Escobar A, Visser MB, Kay JG. Innate Phagocyte Polarization in the Oral Cavity. Front Immunol 2022; 12:768479. [PMID: 35069541 PMCID: PMC8770816 DOI: 10.3389/fimmu.2021.768479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 12/14/2021] [Indexed: 12/24/2022] Open
Abstract
The oral cavity is a complex environment constantly exposed to antigens from food and the oral microbiota. Innate immune cells play an essential role in maintaining health and homeostasis in the oral environment. However, these cells also play a significant role in disease progression. This review will focus on two innate phagocytes in the oral cavity: macrophages and neutrophils, and examine their roles during homeostasis and disease development, with a focus on periodontal disease and cancer. Macrophages have a well-known ability to polarize and be activated towards a variety of phenotypes. Several studies have found that macrophages’ polarization changes can play an essential role in maintaining health in the oral cavity and contribute to disease. Recent data also finds that neutrophils display phenotypic heterogeneity in the oral cavity. In both cases, we focus on what is known about how these cellular changes alter these immune cells’ interactions with the oral microbiota, including how such changes can lead to worsening, rather than improving, disease states.
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Affiliation(s)
- Sarah Metcalfe
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, NY, United States
| | - Natalie Anselmi
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, NY, United States
| | - Alejandro Escobar
- Instituto de Investigación en Ciencias Odontológicas, Facultad de Odontología, Universidad de Chile, Santiago, Chile
| | - Michelle B Visser
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, NY, United States
| | - Jason G Kay
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, NY, United States
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157
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Cheng X, He F, Si M, Sun P, Chen Q. Effects of Antibiotic Use on Saliva Antibody Content and Oral Microbiota in Sprague Dawley Rats. Front Cell Infect Microbiol 2022; 12:721691. [PMID: 35174102 PMCID: PMC8843035 DOI: 10.3389/fcimb.2022.721691] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 01/11/2022] [Indexed: 12/14/2022] Open
Abstract
Antibiotics are often used to treat systemic diseases not associated with the oral cavity. This application of antibiotics may affect the healthy oral microbiota community, as it destroys the balance between specific bacterial populations throughout the ecosystem and may lead to dysbacteriosis. We hypothesized that the effects on antibiotics on oral microbiota regulation and function would affect antibody content in saliva, depending on the antibiotic type. To address this, a total of 24 Sprague Dawley rats (divided into 4 cages, 6 per pen) were administered amoxicillin (AMX), spiramycin (SP), metronidazole (MTZ), or water (control) daily for 14 days (gavage). After treatment was completed, high-throughput sequencing of 16S rRNA genes was used to determine changes in the composition, metabolic function, and diversity of oral microbiota in the rats. Enzyme-linked immunosorbent assay was used to detect antibodies in saliva, including SIgA, IgG, and IgM. Results showed that AMX, MTZ, and SP significantly affected oral microbiota composition, diversity, and metabolic function in rats. AMX induced substantial changes in the rat salivary antibody concentrations. At the genus level, the relative abundance of Rothia and Haemophilus was higher in the AMX group than in the other groups. In conclusion, antibiotics-induced changes in oral microbiota populations may be associated with changes in salivary antibody concentrations. However, the specific interaction mechanisms remain unknown, and it is still unclear whether significant changes in the oral microbiota cause changes in salivary antibody concentrations or vice versa.
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Affiliation(s)
- Xi Cheng
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
- Department of Stomatology, People’s Hospital of Leshan, Leshan, China
| | - Fuming He
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Misi Si
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Ping Sun
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
- *Correspondence: Ping Sun, ; Qianming Chen,
| | - Qianming Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
- *Correspondence: Ping Sun, ; Qianming Chen,
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158
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Dong J, Li W, Wang Q, Chen J, Zu Y, Zhou X, Guo Q. Relationships Between Oral Microecosystem and Respiratory Diseases. Front Mol Biosci 2022; 8:718222. [PMID: 35071321 PMCID: PMC8767498 DOI: 10.3389/fmolb.2021.718222] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 12/09/2021] [Indexed: 02/05/2023] Open
Abstract
Oral microecosystem is a very complicated ecosystem that is located in the mouth and comprises oral microbiome, diverse anatomic structures of oral cavity, saliva and interactions between oral microbiota and between oral microbiota and the host. More and more evidence from studies of epidemiology, microbiology and molecular biology is establishing a significant link between oral microecosystem and respiratory diseases. Microbiota settling down in oral microecosystem is known as the main source of lung microbiome and has been associated with the occurrence and development of respiratory diseases like pneumonia, chronic obstructive pulmonary disease, lung cancer, cystic fibrosis lung disease and asthma. In fact, it is not only indigenous oral microbes promote or directly cause respiratory infection and inflammation when inhaled into the lower respiratory tract, but also internal environment of oral microecosystem serves as a reservoir for opportunistic respiratory pathogens. Moreover, poor oral health and oral diseases caused by oral microecological dysbiosis (especially periodontal disease) are related with risk of multiple respiratory diseases. Here, we review the research status on the respiratory diseases related with oral microecosystem. Potential mechanisms on how respiratory pathogens colonize oral microecosystem and the role of indigenous oral microbes in pathogenesis of respiratory diseases are also summarized and analyzed. Given the importance of oral plaque control and oral health interventions in controlling or preventing respiratory infection and diseases, we also summarize the oral health management measures and attentions, not only for populations susceptible to respiratory infection like the elderly and hospitalized patients, but also for dentist or oral hygienists who undertake oral health care. In conclusion, the relationship between respiratory diseases and oral microecosystem has been established and supported by growing body of literature. However, etiological evidence on the role of oral microecosystem in the development of respiratory diseases is still insufficient. Further detailed studies focusing on specific mechanisms on how oral microecosystem participate in the pathogenesis of respiratory diseases could be helpful to prevent and treat respiratory diseases.
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Affiliation(s)
- Jiajia Dong
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qi Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jiahao Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yue Zu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qiang Guo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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159
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Negrini TDC, Carlos IZ, Duque C, Caiaffa KS, Arthur RA. Interplay Among the Oral Microbiome, Oral Cavity Conditions, the Host Immune Response, Diabetes Mellitus, and Its Associated-Risk Factors-An Overview. FRONTIERS IN ORAL HEALTH 2022; 2:697428. [PMID: 35048037 PMCID: PMC8757730 DOI: 10.3389/froh.2021.697428] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 08/16/2021] [Indexed: 12/12/2022] Open
Abstract
This comprehensive review of the literature aimed to investigate the interplay between the oral microbiome, oral cavity conditions, and host immune response in Diabetes mellitus (DM). Moreover, this review also aimed to investigate how DM related risk factors, such as advanced age, hyperglycemia, hyperlipidemia, obesity, hypertension and polycystic ovary syndrome (PCOS), act in promoting or modifying specific mechanisms that could potentially perpetuate both altered systemic and oral conditions. We found that poorly controlled glycemic index may exert a negative effect on the immune system of affected individuals, leading to a deficient immune response or to an exacerbation of the inflammatory response exacerbating DM-related complications. Hyperglycemia induces alterations in the oral microbiome since poor glycemic control is associated with increased levels and frequencies of periodontal pathogens in the subgingival biofilm of individuals with DM. A bidirectional relationship between periodontal diseases and DM has been suggested: DM patients may have an exaggerated inflammatory response, poor repair and bone resorption that aggravates periodontal disease whereas the increased levels of systemic pro-inflammatory mediators found in individuals affected with periodontal disease exacerbates insulin resistance. SARS-CoV-2 infection may represent an aggravating factor for individuals with DM. Individuals with DM tend to have low salivary flow and a high prevalence of xerostomia, but the association between prevalence/experience of dental caries and DM is still unclear. DM has also been associated to the development of lesions in the oral mucosa, especially potentially malignant ones and those associated with fungal infections. Obesity plays an important role in the induction and progression of DM. Co-affected obese and DM individuals tend to present worse oral health conditions. A decrease in HDL and, an increase in triglycerides bloodstream levels seem to be associated with an increase on the load of periodontopathogens on oral cavity. Moreover, DM may increase the likelihood of halitosis. Prevalence of impaired taste perception and impaired smell recognition tend to be greater in DM patients. An important interplay among oral cavity microbiome, DM, obesity and hypertension has been proposed as the reduction of nitrate into nitrite, in addition to contribute to lowering of blood pressure, reduces oxidative stress and increases insulin secretion, being these effects desirable for the control of obesity and DM. Women with PCOS tend to present a distinct oral microbial composition and an elevated systemic response to selective members of this microbial community, but the association between oral microbiome, PCOS are DM is still unknown. The results of the studies presented in this review suggest the interplay among the oral microbiome, oral cavity conditions, host immune response and DM and some of the DM associated risk factors exist. DM individuals need to be encouraged and motivated for an adequate oral health care. In addition, these results show the importance of adopting multidisciplinary management of DM and of strengthening physicians-dentists relationship focusing on both systemic and on oral cavity conditions of DM patients.
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Affiliation(s)
- Thais de Cássia Negrini
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University, Araraquara, Brazil
| | - Iracilda Zeppone Carlos
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University, Araraquara, Brazil
| | - Cristiane Duque
- Department of Restorative and Preventive Dentistry, Araçatuba Dental School, São Paulo State University, Araçatuba, Brazil
| | - Karina Sampaio Caiaffa
- Department of Restorative and Preventive Dentistry, Araçatuba Dental School, São Paulo State University, Araçatuba, Brazil
| | - Rodrigo Alex Arthur
- Department of Preventive and Community Dentistry, Dental School, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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160
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Oral Health and Liver Disease: Bidirectional Associations—A Narrative Review. Dent J (Basel) 2022; 10:dj10020016. [PMID: 35200242 PMCID: PMC8870998 DOI: 10.3390/dj10020016] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/11/2022] [Accepted: 01/18/2022] [Indexed: 12/04/2022] Open
Abstract
Several links between chronic liver disease and oral health have been described and are discussed in this narrative review. Oral manifestations such as lichen planus, ulcers, xerostomia, erosion and tongue abnormalities seem to be particularly prevalent among patients with chronic liver disease. These may be causal, coincidental, secondary to therapeutic interventions, or attributable to other factors commonly observed in liver disease patients. In addition, findings from both experimental and epidemiological studies suggest that periodontitis can induce liver injury and contribute to the progression of chronic liver disease through periodontitis-induced systemic inflammation, endotoxemia, and gut dysbiosis with increased intestinal translocation. This has brought forward the hypothesis of an oral-gut-liver axis. Preliminary clinical intervention studies indicate that local periodontal treatments may lead to beneficial liver effects, but more human studies are needed to clarify if treatment of periodontitis truly can halt or reverse progression of liver disease and improve liver-related outcomes.
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161
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Wirth R, Pap B, Maróti G, Vályi P, Komlósi L, Barta N, Strang O, Minárovits J, Kovács KL. Toward Personalized Oral Diagnosis: Distinct Microbiome Clusters in Periodontitis Biofilms. Front Cell Infect Microbiol 2022; 11:747814. [PMID: 35004342 PMCID: PMC8727345 DOI: 10.3389/fcimb.2021.747814] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/29/2021] [Indexed: 12/21/2022] Open
Abstract
Periodontitis is caused by pathogenic subgingival microbial biofilm development and dysbiotic interactions between host and hosted microbes. A thorough characterization of the subgingival biofilms by deep amplicon sequencing of 121 individual periodontitis pockets of nine patients and whole metagenomic analysis of the saliva microbial community of the same subjects were carried out. Two biofilm sampling methods yielded similar microbial compositions. Taxonomic mapping of all biofilms revealed three distinct microbial clusters. Two clinical diagnostic parameters, probing pocket depth (PPD) and clinical attachment level (CAL), correlated with the cluster mapping. The dysbiotic microbiomes were less diverse than the apparently healthy ones of the same subjects. The most abundant periodontal pathogens were also present in the saliva, although in different representations. The single abundant species Tannerella forsythia was found in the diseased pockets in about 16–17-fold in excess relative to the clinically healthy sulcus, making it suitable as an indicator of periodontitis biofilms. The discrete microbial communities indicate strong selection by the host immune system and allow the design of targeted antibiotic treatment selective against the main periodontal pathogen(s) in the individual patients.
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Affiliation(s)
- Roland Wirth
- Department of Biotechnology, University of Szeged, Szeged, Hungary
| | - Bernadett Pap
- Biological Research Center, Institute of Plant Biology, Szeged, Hungary
| | - Gergely Maróti
- Biological Research Center, Institute of Plant Biology, Szeged, Hungary
| | - Péter Vályi
- Department of Periodontology, University of Szeged, Szeged, Hungary
| | - Laura Komlósi
- Department of Oral Surgery, University of Szeged, Szeged, Hungary
| | - Nikolett Barta
- Department of Biotechnology, University of Szeged, Szeged, Hungary
| | - Orsolya Strang
- Department of Biotechnology, University of Szeged, Szeged, Hungary.,Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary
| | - János Minárovits
- Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary
| | - Kornél L Kovács
- Department of Biotechnology, University of Szeged, Szeged, Hungary.,Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary
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162
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Shinohara M, Maetani M, Kitada C, Nishigami Y, Yazawa A, Kamitani S. Analysis of the Effects of Food Additives on Porphyromonas gingivalis. Pathogens 2022; 11:pathogens11010065. [PMID: 35056013 PMCID: PMC8779409 DOI: 10.3390/pathogens11010065] [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: 11/20/2021] [Revised: 12/31/2021] [Accepted: 12/31/2021] [Indexed: 12/04/2022] Open
Abstract
This study aims to investigate six food additives (octanoic acid, decanoic acid, acesulfame K, aspartame, saccharin, and sucralose) used in foods for the elderly or people with dysphagia because of the effect of these food additives on Porphyromonas gingivalis (P. gingivalis), which is a keystone pathogen of periodontal diseases. The growth of P. gingivalis was inhibited by 5 mM octanoic acid, 1.25 mM decanoic acid, 1.25% acesulfame K, 0.0625% aspartame, 0.03125% saccharin, and 0.625% sucralose. In addition, these food additives showed bactericidal activity for planktonic P. gingivalis (5 mM octanoic acid, 5 mM decanoic acid, 0.25% aspartame, 0.25% saccharin, and 5% sucralose). Moreover, biofilm formation was inhibited by 10 mM octanoic acid, 10 mM decanoic acid, 10% acesulfame K, 0.35% aspartame, 0.5% saccharin, and 7.5% sucralose. Moreover, the same concentration of these food additives without aspartame killed P. gingivalis in the biofilm. Aspartame and sucralose did not show cytotoxicity to human cell lines at concentrations that affected P. gingivalis. These findings may be useful in clarifying the effects of food additives on periodontopathogenic bacteria.
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163
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Zhu S, Gao B, Umetsu Y, Peigneur S, Li P, Ohki S, Tytgat J. Adaptively evolved human oral actinomyces-sourced defensins show therapeutic potential. EMBO Mol Med 2021; 14:e14499. [PMID: 34927385 PMCID: PMC8819291 DOI: 10.15252/emmm.202114499] [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] [Received: 05/02/2021] [Revised: 11/29/2021] [Accepted: 12/03/2021] [Indexed: 12/12/2022] Open
Abstract
The development of eukaryote‐derived antimicrobial peptides as systemically administered drugs has proven a challenging task. Here, we report the first human oral actinomyces‐sourced defensin—actinomycesin—that shows promise for systemic therapy. Actinomycesin and its homologs are only present in actinobacteria and myxobacteria, and share similarity with a group of ancient invertebrate‐type defensins reported in fungi and invertebrates. Signatures of natural selection were detected in defensins from the actinomyces colonized in human oral cavity and ruminant rumen and dental plaque, highlighting their role in adaptation to complex multispecies bacterial communities. Consistently, actinomycesin exhibited potent antibacterial activity against oral bacteria and clinical isolates of Staphylococcus and synergized with two classes of human salivary antibacterial factors. Actinomycesin specifically inhibited bacterial peptidoglycan synthesis and displayed weak immunomodulatory activity and low toxicity on human and mammalian cells and ion channels in the heart and central nervous system. Actinomycesin was highly efficient in mice infected with Streptococcus pneumoniae and mice with MRSA‐induced experimental peritoneal infection. This work identifies human oral bacteria as a new source of systemic anti‐infective drugs.
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Affiliation(s)
- Shunyi Zhu
- Group of Peptide Biology and Evolution, State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Bin Gao
- Group of Peptide Biology and Evolution, State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yoshitaka Umetsu
- Center for Nano Materials and Technology (CNMT), Japan Advanced Institute of Science and Technology (JAIST), Nomi, Japan
| | - Steve Peigneur
- Toxicology and Pharmacology, University of Leuven, Leuven, Belgium
| | - Ping Li
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety (Chinese Academy of Sciences), National Center for Nanoscience and Technology, Beijing, China
| | - Shinya Ohki
- Center for Nano Materials and Technology (CNMT), Japan Advanced Institute of Science and Technology (JAIST), Nomi, Japan
| | - Jan Tytgat
- Toxicology and Pharmacology, University of Leuven, Leuven, Belgium
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164
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Sędzikowska A, Szablewski L. Human Gut Microbiota in Health and Selected Cancers. Int J Mol Sci 2021; 22:13440. [PMID: 34948234 PMCID: PMC8708499 DOI: 10.3390/ijms222413440] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/08/2021] [Accepted: 12/10/2021] [Indexed: 12/24/2022] Open
Abstract
The majority of the epithelial surfaces of our body, and the digestive tract, respiratory and urogenital systems, are colonized by a vast number of bacteria, archaea, fungi, protozoans, and viruses. These microbiota, particularly those of the intestines, play an important, beneficial role in digestion, metabolism, and the synthesis of vitamins. Their metabolites stimulate cytokine production by the human host, which are used against potential pathogens. The composition of the microbiota is influenced by several internal and external factors, including diet, age, disease, and lifestyle. Such changes, called dysbiosis, may be involved in the development of various conditions, such as metabolic diseases, including metabolic syndrome, type 2 diabetes mellitus, Hashimoto's thyroidis and Graves' disease; they can also play a role in nervous system disturbances, such as multiple sclerosis, Alzheimer's disease, Parkinson's disease, and depression. An association has also been found between gut microbiota dysbiosis and cancer. Our health is closely associated with the state of our microbiota, and their homeostasis. The aim of this review is to describe the associations between human gut microbiota and cancer, and examine the potential role of gut microbiota in anticancer therapy.
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Affiliation(s)
| | - Leszek Szablewski
- Chair and Department of General Biology and Parasitology, Medical University of Warsaw, ul. Chalubinskiego 5, 02-004 Warsaw, Poland;
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165
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Wigand J, Tansirichaiya S, Winje E, Al-Haroni M. Functional screening of a human saliva metagenomic DNA reveal novel resistance genes against sodium hypochlorite and chlorhexidine. BMC Oral Health 2021; 21:632. [PMID: 34886820 PMCID: PMC8656073 DOI: 10.1186/s12903-021-02000-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 11/30/2021] [Indexed: 11/28/2022] Open
Abstract
Objective Many sections of the health care system are facing a major challenge making infectious disease problematic to treat; antimicrobial resistance (AMR). Identification and surveillance of the resistome have been highlighted as one of the strategies to overcome the problem. This study aimed to screen for AMR genes in an oral microbiota, a complex microbial system continuously exposed to antimicrobial agents commonly used in dental practice. Materials and methods As a significant part of the oral microbiome cannot be conventionally cultured, a functional metagenomic approach was chosen. The human oral metagenomic DNA was extracted from saliva samples collected from 50 healthy volunteers in Norway. The oral metagenomic library was then constructed by ligating partially digested oral metagenome into pSMART BAC vector and introducing into Escherichia coli. The library was screened against antimicrobials in dental practices. All resistant clones were selected and analyzed. Results Screening of the oral metagenomic library against different antimicrobials detected multiple clones with resistance against chlorhexidine, triclosan, erythromycin, tetracycline, and sodium hypochlorite. Bioinformatic analysis revealed both already known resistance genes, including msr, mef(A), tetAB(46), and fabK, and genes that were not previously described to confer resistance, including recA and accB conferring resistance to sodium hypochlorite and chlorhexidine, respectively. Conclusion Multiple clones conferring resistance to antimicrobials commonly used in dental practices were detected, containing known and novel resistant genes by functional-based metagenomics. There is a need for more studies to increase our knowledge in the field. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-021-02000-5.
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Affiliation(s)
- Johannes Wigand
- Department of Clinical Dentistry, Faculty of Health Sciences, UiT the Arctic University of Norway, 9037, Tromsø, Norway
| | - Supathep Tansirichaiya
- Department of Clinical Dentistry, Faculty of Health Sciences, UiT the Arctic University of Norway, 9037, Tromsø, Norway.,Centre for New Antimicrobial Strategies, UiT the Arctic University of Norway, Tromsø, Norway.,Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Endre Winje
- Department of Clinical Dentistry, Faculty of Health Sciences, UiT the Arctic University of Norway, 9037, Tromsø, Norway
| | - Mohammed Al-Haroni
- Department of Clinical Dentistry, Faculty of Health Sciences, UiT the Arctic University of Norway, 9037, Tromsø, Norway. .,Centre for New Antimicrobial Strategies, UiT the Arctic University of Norway, Tromsø, Norway.
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166
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Cheng X, Zhou X, Liu C, Xu X. Oral Osteomicrobiology: The Role of Oral Microbiota in Alveolar Bone Homeostasis. Front Cell Infect Microbiol 2021; 11:751503. [PMID: 34869060 PMCID: PMC8635720 DOI: 10.3389/fcimb.2021.751503] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 10/29/2021] [Indexed: 02/05/2023] Open
Abstract
Osteomicrobiology is a new research field in which the aim is to explore the role of microbiota in bone homeostasis. The alveolar bone is that part of the maxilla and mandible that supports the teeth. It is now evident that naturally occurring alveolar bone loss is considerably stunted in germ-free mice compared with specific-pathogen-free mice. Recently, the roles of oral microbiota in modulating host defense systems and alveolar bone homeostasis have attracted increasing attention. Moreover, the mechanistic understanding of oral microbiota in mediating alveolar bone remodeling processes is undergoing rapid progress due to the advancement in technology. In this review, to provide insight into the role of oral microbiota in alveolar bone homeostasis, we introduced the term “oral osteomicrobiology.” We discussed regulation of alveolar bone development and bone loss by oral microbiota under physiological and pathological conditions. We also focused on the signaling pathways involved in oral osteomicrobiology and discussed the bridging role of osteoimmunity and influencing factors in this process. Finally, the critical techniques for osteomicrobiological investigations were introduced.
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Affiliation(s)
- Xingqun Cheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chengcheng Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xin Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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167
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Khadija B, Badshah L, Siddiqa A, Rehman B, Anjum S, Saeed A, Hussain S, Faryal R. Dysbiosis in salivary bacterial diversity of postpartum females and its association with oral health problems and APOs. CURRENT RESEARCH IN MICROBIAL SCIENCES 2021; 2:100032. [PMID: 34841323 PMCID: PMC8610344 DOI: 10.1016/j.crmicr.2021.100032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 11/25/2022] Open
Abstract
In present study, salivary microbial diversity of postpartum females was compared with nonpregnant females. Microbial colonization was raised in postpartum females especially those having oral health issues. Isolated bacterial species showed enhanced biofilm forming and multi drug resistance. Alpha diversity was decrease in postpartum female having oral health issues with PLWB. Bray-Curtis dissimilarity was highest between females with dental issues and different pregnancy outcomes.
The present study investigates the dysbiosis in salivary bacterial diversity by culture-dependent and independent methods. Culturable aerobic and facultative anaerobic bacterial diversity was studied in saliva collected from 267 postpartum and 54 nonpregnant females by using standard microbiological methods. For unculturable bacterial diversity, DNA from saliva samples of four selected females was sequenced by targeting V4 region of 16S rRNA. In postpartum females, S. mutans was significantly more prevalent. Its colonization was also seen significant among females having gingivitis (P < 0.01), dental caries (P < 0.01), and in those giving birth to low weight baby. In postpartum group, 65.16% females were culture positive for Staphylococcus, 12.73% Gram positive rods, 10.48% N. meningitides, 6.36% K. pneumoniae, 5.61% Enterobacter species and 2.62% E. coli. Isolates showed high biofilm forming ability and antibiotic resistance. Upon analysis of unculturable bacterial diversity, a total of 16 phyla and 156 genera were observed. Alpha diversity was decrease in postpartum female having oral health issues with pre-term low weight birth, compared to females with full term birth. Bray-Curtis dissimilarity was highest between female with dental issues and different pregnancy outcomes. Bacterial diversity and abundance altered among females with different oral health conditions and pregnancy outcomes, and also have pathogenic potential.
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Affiliation(s)
- Bibi Khadija
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.,Department of Medical Laboratory Technology, University of Haripur, Haripur, KPK, Pakistan
| | - Lal Badshah
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Ayesha Siddiqa
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Bushra Rehman
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Samiaa Anjum
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Anum Saeed
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Shahzad Hussain
- Drug Control and Traditional Medicine Department, National Institute of Health (NIH), Islamabad, Pakistan
| | - Rani Faryal
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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168
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Mei S, Zhao M, Liu Y, Zhao C, Xu H, Fang Y, Zhu B. Evaluations and comparisons of microbial diversities in four types of body fluids based on two 16S rRNA gene sequencing methods. Forensic Sci Int 2021; 331:111128. [PMID: 34959019 DOI: 10.1016/j.forsciint.2021.111128] [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: 09/06/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND Body fluids are one of the common biological traces at crime scenes. Understanding the types of these biological traces could provide key clues for the investigations of the forensic cases. In recent years, partial hypervariable regions of 16S rRNA gene sequencing and full-length 16S rRNA gene sequencing have attracted the interests of researchers and we intend to explore which method can be better applied to forensic researches. METHODS In this study, the 16S rRNA gene V3-V4 (short-read) sequencing based on next-generation sequencing and the full-length 16S rRNA gene sequencing based on single molecule real-time sequencing were used to classify microbes in saliva, peripheral blood, vaginal secretion and menstrual blood samples. RESULTS Alpha diversity metrics in short-read sequencing were larger than those of full-length sequencing. Phylum-level bacteria in four kinds of body fluids obtained from the two platforms were similar, while their abundances were different. The results of principal coordinates analysis and analysis of molecular variance indicated the microbial compositions of vaginal secretion and menstrual blood samples were similar, and the microbial compositions among saliva, peripheral blood, vaginal secretion or menstrual blood samples were significantly different. The linear discriminant analysis effect size showed the differential bacteria screened among the four kinds of body fluids were variant in two sequencing results. CONCLUSION Both sequencing methods could be used to detect bacterial diversities in four different types of body fluids and provide potential tools for microbes to identify the four kinds of body fluids in forensic investigation, in which full-length sequencing could provide more accurate taxonomy.
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Affiliation(s)
- Shuyan Mei
- Multi-Omics Innovative Research Center of Forensic Identification; Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, P. R. China
| | - Ming Zhao
- Multi-Omics Innovative Research Center of Forensic Identification; Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, P. R. China
| | - Yanfang Liu
- School of Nursing, Guangdong Medical University, Dongguan 523808, P. R. China
| | - Congying Zhao
- Multi-Omics Innovative Research Center of Forensic Identification; Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, P. R. China
| | - Hui Xu
- Multi-Omics Innovative Research Center of Forensic Identification; Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, P. R. China
| | - Yating Fang
- Multi-Omics Innovative Research Center of Forensic Identification; Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, P. R. China
| | - Bofeng Zhu
- Multi-Omics Innovative Research Center of Forensic Identification; Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, P. R. China.
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169
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Diakoumopoulou D, Magana M, Karoussis IK, Nikolaou C, Chatzipanagiotou S, Ioannidis A. The ever-changing landscape in modern dentistry therapeutics - Enhancing the emptying quiver of the periodontist. Heliyon 2021; 7:e08342. [PMID: 34816039 PMCID: PMC8591475 DOI: 10.1016/j.heliyon.2021.e08342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 09/12/2021] [Accepted: 11/04/2021] [Indexed: 11/29/2022] Open
Abstract
Introduction/Objectives Periodontitis comprises of a wide range of inflammatory conditions of the gums leading to soft tissue damage and attachment loss. The initiation of periodontitis constitutes a rather complex disease pathogenesis which is based on pathogenic shifts of the oral microbiota combined with the host-microbiome interactions. The severity of the periodontitis is multifactorial depending on genetic, environmental, as well as host immunity factors. Data and sources To make an inclusive analysis on the periodontitis therapeutics, reading of the recent relevant literature was carried out using the MEDLINE/PubMed database, Google Scholar and the NIH public online database for clinical trials (http://www.clinicaltrials.gov). Conclusions Tackling the inflammation associated periodontal defects can be succeeded with conventional therapy or resective and regenerative treatment. To date, the mechanical removal of the supragingival and subgingival biofilm is considered the “gold standard” of periodontal therapy in combination with the use of antibacterial compounds. The antimicrobial resistance phenomenon tends to turn all the currently applied antibacterials into “endangered species”. Ongoing efforts through the conduct of clinical trials should be focused on understanding the advantages of modern approaches in comparison to traditional therapies.
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Affiliation(s)
- Dimitra Diakoumopoulou
- Department of Clinical Microbiology, Athens Medical School, Aeginition Hospital, Athens, Greece
| | - Maria Magana
- Department of Clinical Microbiology, Athens Medical School, Aeginition Hospital, Athens, Greece
| | - Ioannis K Karoussis
- Department of Periodontology, School of Dental Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Chrysoula Nikolaou
- Department of Clinical Microbiology, Athens Medical School, Aeginition Hospital, Athens, Greece
| | | | - Anastasios Ioannidis
- Department of Clinical Microbiology, Athens Medical School, Aeginition Hospital, Athens, Greece.,Department of Nursing, Faculty of Health Sciences, University of Peloponnese, Tripolis, Greece
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170
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Charalambous EG, Mériaux SB, Guebels P, Muller CP, Leenen FAD, Elwenspoek MMC, Thiele I, Hertel J, Turner JD. Early-Life Adversity Leaves Its Imprint on the Oral Microbiome for More Than 20 Years and Is Associated with Long-Term Immune Changes. Int J Mol Sci 2021; 22:ijms222312682. [PMID: 34884490 PMCID: PMC8657988 DOI: 10.3390/ijms222312682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 12/12/2022] Open
Abstract
The early-life microbiome (ELM) interacts with the psychosocial environment, in particular during early-life adversity (ELA), defining life-long health trajectories. The ELM also plays a significant role in the maturation of the immune system. We hypothesised that, in this context, the resilience of the oral microbiomes, despite being composed of diverse and distinct communities, allows them to retain an imprint of the early environment. Using 16S amplicon sequencing on the EpiPath cohort, we demonstrate that ELA leaves an imprint on both the salivary and buccal oral microbiome 24 years after exposure to adversity. Furthermore, the changes in both communities were associated with increased activation, maturation, and senescence of both innate and adaptive immune cells, although the interaction was partly dependent on prior herpesviridae exposure and current smoking. Our data suggest the presence of multiple links between ELA, Immunosenescence, and cytotoxicity that occur through long-term changes in the microbiome.
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Affiliation(s)
- Eleftheria G. Charalambous
- Immune Endocrine and Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health (LIH), 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.G.C.); (S.B.M.); (P.G.); (C.P.M.); (F.A.D.L.); (M.M.C.E.)
- Faculty of Science, Technology and Medicine, University of Luxembourg, 2 Avenue de Université, L-4365 Esch-sur-Alzette, Luxembourg
| | - Sophie B. Mériaux
- Immune Endocrine and Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health (LIH), 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.G.C.); (S.B.M.); (P.G.); (C.P.M.); (F.A.D.L.); (M.M.C.E.)
| | - Pauline Guebels
- Immune Endocrine and Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health (LIH), 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.G.C.); (S.B.M.); (P.G.); (C.P.M.); (F.A.D.L.); (M.M.C.E.)
| | - Claude P. Muller
- Immune Endocrine and Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health (LIH), 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.G.C.); (S.B.M.); (P.G.); (C.P.M.); (F.A.D.L.); (M.M.C.E.)
| | - Fleur A. D. Leenen
- Immune Endocrine and Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health (LIH), 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.G.C.); (S.B.M.); (P.G.); (C.P.M.); (F.A.D.L.); (M.M.C.E.)
| | - Martha M. C. Elwenspoek
- Immune Endocrine and Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health (LIH), 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.G.C.); (S.B.M.); (P.G.); (C.P.M.); (F.A.D.L.); (M.M.C.E.)
| | - Ines Thiele
- School of Medicine, National University of Ireland, H91 YR71 Galway, Ireland; (I.T.); (J.H.)
- Ryan Institute, National University of Galway, H91 TK33 Galway, Ireland
- Division of Microbiology, National University of Galway, H91 TK33 Galway, Ireland
- APC Microbiome Ireland, T12 HW58 Cork, Ireland
| | - Johannes Hertel
- School of Medicine, National University of Ireland, H91 YR71 Galway, Ireland; (I.T.); (J.H.)
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, 17489 Greifswald, Germany
| | - Jonathan D. Turner
- Immune Endocrine and Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health (LIH), 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.G.C.); (S.B.M.); (P.G.); (C.P.M.); (F.A.D.L.); (M.M.C.E.)
- Correspondence: ; Tel.: +352-26970-629
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171
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Tetrahydroimidazo[4,5- c]pyridine-Based Inhibitors of Porphyromonas gingivalis Glutaminyl Cyclase. Pharmaceuticals (Basel) 2021; 14:ph14121206. [PMID: 34959608 PMCID: PMC8709289 DOI: 10.3390/ph14121206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/12/2021] [Accepted: 11/17/2021] [Indexed: 01/05/2023] Open
Abstract
Periodontitis is a severe yet underestimated oral disease. Since it is linked to several systemic diseases, such as diabetes, artheriosclerosis, and even Alzheimer’s disease, growing interest in treating periodontitis has emerged recently. The major cause of periodontitis is a shift in the oral microbiome. A keystone pathogen that is associated with this shift is Porphyromonas gingivalis. Hence, targeting P. gingivalis came into focus of drug discovery for the development of novel antiinfective compounds. Among others, glutaminyl cyclases (QCs) of oral pathogens might be promising drug targets. Here, we report the discovery and structure–activity relationship of a novel class of P. gingivalis QC inhibitors according to a tetrahydroimidazo[4,5-c]pyridine scaffold. Some compounds exhibited activity in the lower nanomolar range and thus were further characterized with regard to their selectivity and toxicity.
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172
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Wang Y, Guo H, Gao X, Wang J. The Intratumor Microbiota Signatures Associate With Subtype, Tumor Stage, and Survival Status of Esophageal Carcinoma. Front Oncol 2021; 11:754788. [PMID: 34778069 PMCID: PMC8578860 DOI: 10.3389/fonc.2021.754788] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 10/11/2021] [Indexed: 12/23/2022] Open
Abstract
Altered human microbiome characteristic has been linked with esophageal carcinoma (ESCA), analysis of microbial profiling directly derived from ESCA tumor tissue is beneficial for studying the microbial functions in tumorigenesis and development of ESCA. In this study, we identified the intratumor microbiome signature and investigated the correlation between microbes and clinical characteristics of patients with ESCA, on the basis of data and information obtained from The Cancer Microbiome Atlas (TCMA) and The Cancer Genome Atlas (TCGA) databases. A total of 82 samples were analyzed for microbial composition at various taxonomic levels, including 40 tumor samples of esophageal squamous cell carcinoma (ESCC), 20 tumor samples of esophageal adenocarcinoma (EAD), and 22 adjacent normal samples. The results showed that the relative abundance of several microbes changed in tumors compared to their paired normal tissues, such as Firmicutes increased significantly while Proteobacteria decreased in tumor samples. We also identified a microbial signature composed of ten microbes that may help in the classification of ESCC and EAD, the two subtypes of ESCA. Correlation analysis demonstrated that compositions of microbes Fusobacteria/Fusobacteriia/Fusobacteriales, Lactobacillales/Lactobacillaceae/Lactobacillus, Clostridia/Clostridiales, Proteobacteria, and Negativicutes were correlated with the clinical characteristics of ESCA patients. In summary, this study supports the feasibility of detecting intratumor microbial composition derived from tumor sequencing data, and it provides novel insights into the roles of microbiota in tumors. Ultimately, as the second genome of human body, microbiome signature analysis may help to add more information to the blueprint of human biology.
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Affiliation(s)
- Yangyang Wang
- School of Electronics and Information, Northwestern Polytechnical University, Xi'an, China
| | - Hua Guo
- Department of Nursing, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Xiaoguang Gao
- School of Electronics and Information, Northwestern Polytechnical University, Xi'an, China
| | - Jihan Wang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
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173
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Liu W, Yue F, Lee LP. Integrated Point-of-Care Molecular Diagnostic Devices for Infectious Diseases. Acc Chem Res 2021; 54:4107-4119. [PMID: 34699183 DOI: 10.1021/acs.accounts.1c00385] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The global outbreaks of deadly infectious diseases caused by pathogenic microorganisms have threatened public health worldwide and significantly motivated scientists to satisfy an urgent need for a rapid and accurate detection of pathogens. Traditionally, the culture-based technique is considered as the gold standard for pathogen detection, yet it has a long turnaround time due to the overnight culturing and pathogen isolation. Alternatively, nucleic acid amplification tests provide a relatively shorter turnaround time to identify whether pathogens exist in individuals with high sensitivity and high specificity. In most cases, nucleic acid amplification tests undergo three steps: sample preparation, nucleic acid amplification, and signal transduction. Despite the explosive advancement in nucleic acid amplification and signal transduction technologies, the complex and labor-intensive sample preparation steps remain a bottleneck to create a transformative integrated point-of-care (POC) molecular diagnostic device. Researchers have attempted to simplify and integrate the sample preparations for nucleic acid-based molecular diagnostic devices with innovative progress in integration strategies, engineered materials, reagent storages, and fluid actuation. Therefore, understanding the know-how and obtaining truthful knowledge of existing integrated POC molecular diagnostic devices comprising sample preparations, nucleic acid amplification, and signal transduction can generate innovative solutions to achieve personalized precision medicine and improve global health.In this Account, we discuss the challenges of automated sample preparation solutions integrated with nucleic acid amplification and signal transduction for rapid and precise home diagnostics. Blood, nasal swab, saliva, urine, and stool are emphasized as the most commonly used clinical samples for integrated POC molecular diagnostics of infectious diseases. Even though these five types of samples possess relatively correlated biomarkers due to the human body's circulatory system, each shows unique properties and exclusive advantages for molecular diagnostics in specific situations, which are included in this Account. We examine different integrated POC devices for sample preparation, which includes pathogen isolation and enrichment from the crude sample and nucleic acid purification from isolated pathogens. We present the promising on-chip integration approaches for nucleic acid amplification. We also investigate the on-chip integration methods for reagent storage, which is crucial to simplify the manual operation for end-users. Finally, we present several integrated POC molecular diagnostic devices for infectious diseases. The integrated sample preparation and nucleic acid amplification approach reviewed here can potentially impact the next generation of POC molecular home diagnostic chips, which will significantly impact public health, emergency medicine, and global biosecurity.
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Affiliation(s)
- Wenpeng Liu
- Renal Division and Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston 02115, Massachusetts, United States
| | - Fei Yue
- Renal Division and Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston 02115, Massachusetts, United States
| | - Luke P. Lee
- Renal Division and Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston 02115, Massachusetts, United States
- Department of Bioengineering, Department of Electrical Engineering and Computer Science, University of California at Berkeley, Berkeley 94720, California, United States
- Institute of Quantum Biophysics, Department of Biophysics, Sungkyunkwan University, Suwon 16419, Korea
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174
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Liao G, Wu J, Peng X, Li Y, Tang L, Xu X, Deng D, Zhou X. Visualized analysis of trends and hotspots in global oral microbiome research: A bibliometric study. MedComm (Beijing) 2021; 1:351-361. [PMID: 34766127 PMCID: PMC8491219 DOI: 10.1002/mco2.47] [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] [Received: 05/17/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 02/05/2023] Open
Abstract
The oral microbiome contains numerous bacteria, which directly or indirectly participate in various human functions and continuously exchange signals and substances with the human body, significantly affecting human life cycle, health, and disease. This study aimed to conduct bibliometric studies on the scientific outputs of global oral microbiome research by Citespace software. The data were obtained from the Thomson Reuters' Web of Science Core Collection (WoSCC), from the first relevant literature published until December 31st, 2019, and a total of 2225 articles and reviews were identified. The top country and institutions are the United States and Harvard University. Keywords analysis showed that periodontal disease, oral microbes, and dental plaque are research hotspots. The burst word analysis indicates that early childhood caries, squamous cell carcinoma, gut microbiome, Helicobacter pylori, Candida albicans, and dysbiosis are likely to become the research hotspots of the next era. We also recommend the use of knowledge mapping methods to track specific knowledge areas efficiently and objectively regularly, which can accurately identify hotspots and frontiers and provide valuable information for practitioners in the field, including related scientists, students, journals, and editors.
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Affiliation(s)
- Ga Liao
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu China.,Medical Big Data Center Sichuan University Chengdu China.,Department of Information Management Department of Stomatology Informatics, West China Hospital of Stomatology Sichuan University Chengdu China
| | - Jinyun Wu
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu China.,Department of Cariology and Endodontics, West China Hospital of Stomatology Sichuan University Chengdu China
| | - Xian Peng
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu China
| | - Yuqing Li
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu China
| | - Li Tang
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu China.,Department of Cariology and Endodontics, West China Hospital of Stomatology Sichuan University Chengdu China
| | - Xin Xu
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu China.,Department of Cariology and Endodontics, West China Hospital of Stomatology Sichuan University Chengdu China
| | - Dongmei Deng
- Department of Preventive Dentistry, Academic Center for Dentistry Amsterdam (ACTA) University of Amsterdam and VU University Amsterdam Amsterdam Netherlands
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology Sichuan University Chengdu China.,Department of Cariology and Endodontics, West China Hospital of Stomatology Sichuan University Chengdu China
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175
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Erira A, García Robayo DA, Chalá AI, Moreno Torres A, Muñoz Lopez EE, Cid Arregui A, Tobar Tosse F, Gamboa Jaimes FO. Bacteriome Identified by Next-Generation Sequencing in Saliva, Dental Plaque, and Tumor Tissue of Patients with Oral Squamous Cell Carcinoma. Open Microbiol J 2021. [DOI: 10.2174/1874285802115010098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background:
Oral squamous cell carcinoma (OSCC) is the sixth most common cancer in the world, and the bacterial microbiome has been considered a risk factor that could play an important role in carcinogenesis.
Objective:
A bacteriome study was performed by next-generation sequencing in dental plaque, saliva, and tumor samples of 10 OSCC patients and compared with bacteriome in dental plaque and saliva of 10 patients without OSCC.
Methods:
DNA was extracted from all samples and sequenced by Illumina technology MiSeq™. Bioinformatic analyzes were performed for evaluated sequence quality, alpha and beta diversity, bidirectional analysis of variance (p <0.05), and principal component analysis. After establishing bacterial profiles associated with each sample and population, intragroup and intergroup comparisons were carried out. For bacteria identification compatible with eubiosis and dysbiosis processes, a screening was performed based on the frequency of appearance in all patient samples with and without OSCC. Lastly, frequency, average, standard deviation, Chi-square, and Mann Whitney test were calculated.
Results:
Out of the identified 1,231 bacteria in the populations under study, 45 bacterial species were selected, of which 34 were compatible with eubiosis, and 11 were compatible with dysbiosis. Among the bacteria compatible with eubiosis were species of Lactobacillus and Streptococcus, Chromobacterium violaceum, Enterobacter asburiae, Mycobacterium chubuense, Mycoplasma penetrans, and Brachyspira intermedia. Among the species associated with dysbiosis, Providencia stuartii, Capnocytophaga canimorsus, Legionella pneumophila, and Mycoplasma hominis were notable.
Conclusion:
Thirty-four bacterial species may be associated with eubiosis or healthy states and 11 bacterial species could be associated with dysbiosis or pathogenic state, OSCC.
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176
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López-Santacruz HD, López-López A, Revilla-Guarinos A, Camelo-Castillo A, Esparza-Villalpando V, Mira A, Aranda-Romo S. Streptococcus dentisani is a common inhabitant of the oral microbiota worldwide and is found at higher levels in caries-free individuals. Int Microbiol 2021; 24:619-629. [PMID: 34731341 DOI: 10.1007/s10123-021-00222-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 12/12/2022]
Abstract
Streptococcus dentisani has been proposed as a promising probiotic against tooth decay, due to its ability to buffer acidic pH and to inhibit the growth of oral pathogens. However, it is unknown if this bacterial species has a global distribution. The current study aimed to establish the presence of S. dentisani in oral samples from different geographic locations by identifying the sequence of its 16S rRNA gene in available datasets from across the globe. In addition, an analytical and cross-sectional study was carried out to determine if the levels of this probiotic strain are higher in caries-free individuals compared to those with dental caries. Samples from various geographical sources demonstrated that S. dentisani is present in saliva and dental plaque from individuals of different continents. Typical S. dentisani levels in saliva ranged from 104 to 105 cells/ml and a total of 106-107 cells in dental plaque. Using real-time qPCR, S. dentisani was quantified from supragingival dental plaque of 25 caries-free and 29 caries-active individuals from a Mexican children population, where significantly higher proportions of S. dentisani were found in the caries-free group (p = 0.002). Finally, a negative correlation was found between caries levels (as measured by the dmft caries index) and the percentage of S. dentisani (p < 0.001). Thus, the current manuscript indicates that this species has a global distribution, can be found in saliva and dental plaque, and appears to be present in higher numbers in plaque samples from caries-free children.
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Affiliation(s)
| | - Arantxa López-López
- Department of Health and Genomics, Oral Microbiome Lab, FISABIO Foundation, Avda. Cataluña 21, 46020, Valencia, Spain
| | - Ainhoa Revilla-Guarinos
- Department of Health and Genomics, Oral Microbiome Lab, FISABIO Foundation, Avda. Cataluña 21, 46020, Valencia, Spain
| | - Anny Camelo-Castillo
- Department of Health and Genomics, Oral Microbiome Lab, FISABIO Foundation, Avda. Cataluña 21, 46020, Valencia, Spain
| | | | - Alex Mira
- Department of Health and Genomics, Oral Microbiome Lab, FISABIO Foundation, Avda. Cataluña 21, 46020, Valencia, Spain.
| | - Saray Aranda-Romo
- Faculty of Dentistry, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
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177
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Srivastava A, Mishra S, Verma D. Characterization of Oral Bacterial Composition of Adult Smokeless Tobacco Users from Healthy Indians Using 16S rDNA Analysis. MICROBIAL ECOLOGY 2021; 82:1061-1073. [PMID: 33634334 DOI: 10.1007/s00248-021-01711-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 02/03/2021] [Indexed: 05/25/2023]
Abstract
The present investigation is aiming to report the oral bacterial composition of smokeless tobacco (SLT) users and to determine the influence of SLT products on the healthy Indian population. With the aid of the V3 hypervariable region of the 16S rRNA gene, a total of 8,080,889 high-quality reads were clustered into 15 phyla and 180 genera in the oral cavity of the SLT users. Comparative analysis revealed a more diverse microbiome where two phyla and sixteen genera were significantly different among the SLT users as compared to the control group (p-value < 0.05). The prevalence of Fusobacteria-, Porphyromonas-, Desulfobulbus-, Enterococcus-, and Parvimonas-like genera among SLT users indicates altered bacterial communities among SLT users. Besides, the depletion of health-compatible bacteria such as Lactobacillus and Haemophilus also suggests poor oral health. Here, the majority of the altered genera belong to Gram-negative anaerobes that have been reported for assisting biofilm formation that leads in the progression of several oral diseases. The PICRUSt analysis further supports the hypothesis where a significant increase in the count of the genes involved in the metabolism of nitrogen, amino acids, and nicotinate/nicotinamide was observed among tobacco chewers. Moreover, this study has a high significance in Indian prospects where the SLT consumers are prevalent but we are deficient in information on their oral microbiome.
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Affiliation(s)
- Ankita Srivastava
- Department of Microbiology, Babasaheb Bhimrao Ambedkar University, Lucknow, India
| | - SukhDev Mishra
- Department of Bio-Statistics and Data Management, ICMR-National Institute of Occupational Health, Ahmedabad, India
| | - Digvijay Verma
- Department of Microbiology, Babasaheb Bhimrao Ambedkar University, Lucknow, India.
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178
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Crosstalk between the oral microbiota, mucosal immunity, and the epithelial barrier regulates oral mucosal disease pathogenesis. Mucosal Immunol 2021; 14:1247-1258. [PMID: 34040155 DOI: 10.1038/s41385-021-00413-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 04/26/2021] [Accepted: 05/04/2021] [Indexed: 02/07/2023]
Abstract
Oral mucosal disease (OMD), which is also called soft tissue oral disease, is described as a series of disorders or conditions affecting the mucosa and soft tissue in the oral cavity. Its etiology is unclear, but emerging evidence has implicated the influence of the composition of the oral mucosa and saliva-resident microbiota. In turn, this dysbiosis effects the immune response balance and epithelial barrier function, followed by the occurrence and progression of OMD. In addition, oral microbial dysbiosis is diverse in different types of diseases and different disease progressions, suggesting that key causal pathogens may exist in various oral pathologies. This narrative literature review primarily discusses the most recent findings focusing on how microbial dysbiosis communicates with mucosal adaptive immune cells and the epithelial barrier in the context of five representative OMDs, including oral candidiasis (OC), oral lichen planus (OLP), recurrent aphthous ulcer (RAU), oral leukoplakia (OLK), and oral squamous cell carcinoma (OSCC), to provide new insight into the pathogenetic mechanisms of OMDs.
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179
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Wu Z, Han Y, Caporaso JG, Bokulich N, Mohamadkhani A, Moayyedkazemi A, Hua X, Kamangar F, Wan Y, Suman S, Zhu B, Hutchinson A, Dagnall C, Jones K, Hicks B, Shi J, Malekzadeh R, Abnet CC, Pourshams A, Vogtmann E. Cigarette Smoking and Opium Use in Relation to the Oral Microbiota in Iran. Microbiol Spectr 2021; 9:e0013821. [PMID: 34523990 PMCID: PMC8557864 DOI: 10.1128/spectrum.00138-21] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 07/26/2021] [Indexed: 12/27/2022] Open
Abstract
Cigarettes and opium contain chemicals and particulate matter that may modify the oral microbiota. This study aimed to investigate the association between cigarette and opium use with the oral microbiota. A total of 558 participants were recruited from Iran between 2011 and 2015. Individuals were categorized as never cigarette nor opium users, ever cigarette-only smokers, ever opium-only users, and ever both cigarette and opium users. Participants provided saliva samples for 16S rRNA gene sequencing. Logistic regression, microbiome regression-based kernel association test (MiRKAT), and zero-inflated beta regression models were calculated. For every increase in 10 observed amplicon sequence variants (ASVs), the odds for being a cigarette-only smoker, opium-only user, and both user compared to never users decreased by 9% (odds ratio [OR] = 0.91; 95% confidence interval [95% CI] = 0.86 to 0.97), 13% (OR = 0.87; 95% CI = 0.75 to 1.01), and 12% (OR = 0.88; 95% CI = 0.80 to 0.96), respectively. The microbial communities differed by cigarette and opium use as indicated by MiRKAT models testing the three beta-diversity matrices (P < 0.05 for all). Three genera were less likely and one genus was more likely to be detected in cigarette-only smokers or opium-only users than in never users. The relative abundance of the phylum Actinobacteria (never, 14.78%; both, 21.20%) was higher and the phyla Bacteroidetes (never, 17.63%; both, 11.62%) and Proteobacteria (never, 9.06%; both, 3.70%) were lower in users of both cigarettes and opium, while the phylum Firmicutes (never, 54.29%; opium, 65.49%) was higher in opium-only users. Cigarette and opium use was associated with lower alpha-diversity, overall oral microbiota community composition, and both the presence and relative abundance of multiple taxa. IMPORTANCE Cigarette smoking and opium use are associated with periodontal disease caused by specific bacteria such as Porphyromonas gingivalis, which suggests a link between cigarette smoking and opium use and the oral microbiota. Alterations of the oral microbiota in cigarette smokers compared to nonsmokers have been reported, but this has not been studied across diverse populations. Additionally, the association of opium use with the oral microbiota has not been investigated to date. We conducted this study to investigate differences in the oral microbiota between ever users of cigarettes only, opium only, and both cigarettes and opium and never users of cigarettes and opium in Iran. Lower alpha-diversity, distinct overall oral microbial communities, and the presence and relative abundance of multiple taxa have been found for users of cigarettes and/or opium.
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Affiliation(s)
- Zeni Wu
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Yongli Han
- Biostatistics Branch, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - J. Gregory Caporaso
- Center for Applied Microbiome Science, Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona, USA
| | - Nicholas Bokulich
- Center for Applied Microbiome Science, Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona, USA
| | - Ashraf Mohamadkhani
- Digestive Oncology Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Moayyedkazemi
- Department of Internal Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Xing Hua
- Biostatistics Branch, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Farin Kamangar
- Department of Biology, School of Computer, Mathematical, and Natural Sciences, Morgan State University, Baltimore, Maryland, USA
| | - Yunhu Wan
- Biostatistics Branch, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Shalabh Suman
- Cancer Genomics Research Laboratory, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Leidos Biomedical Research Laboratory, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Bin Zhu
- Cancer Genomics Research Laboratory, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Leidos Biomedical Research Laboratory, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Amy Hutchinson
- Cancer Genomics Research Laboratory, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Leidos Biomedical Research Laboratory, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Casey Dagnall
- Cancer Genomics Research Laboratory, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Leidos Biomedical Research Laboratory, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Kristine Jones
- Cancer Genomics Research Laboratory, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Leidos Biomedical Research Laboratory, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Belynda Hicks
- Cancer Genomics Research Laboratory, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Leidos Biomedical Research Laboratory, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Jianxin Shi
- Biostatistics Branch, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Reza Malekzadeh
- Digestive Oncology Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
- Digestive Disease Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Christian C. Abnet
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Akram Pourshams
- Digestive Oncology Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Emily Vogtmann
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, Maryland, USA
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180
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Li H, Sun J, Wang X, Shi J. Oral microbial diversity analysis among atrophic glossitis patients and healthy individuals. J Oral Microbiol 2021; 13:1984063. [PMID: 34676060 PMCID: PMC8526005 DOI: 10.1080/20002297.2021.1984063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Atrophic glossitis is a common disease in oral mucosal diseases. The Current studies have found the human oral cavity contains numerous and diverse microorganisms, their composition and diversity can be changed by various oral diseases. To understand the composition and diversity of oral microbiome in atrophic glossitis is better to explore the cause and mechanism of atrophic glossitis. The salivary microbiome is comprised of indigenous oral microorganisms that are specific to each person, exhibits long-term stability. We used llumina MiSeq high-throughput sequencing based on the V3-V4 region of the bacterial 16S rRNA gene and the internal transcribed spacer (ITS) region of fungal rRNA genes from saliva in atrophic glossitis patients and healthy individuals to explore the composition and diversity of oral microbiome. In our reports, it showed a lower diversity of bacteria and fungi in atrophic glossitis patients than in healthy individuals. The data further suggests that Lactobacillus and Saccharomycetales were potential indicators for the initiation and development of atrophic glossitis. Moreover, we also discuss the relationship between the oral microbial ecology and atrophic glossitis.
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Affiliation(s)
- Hong Li
- Department of Oral Medicine, Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, Taiyuan Shanxi Province, China
| | - Jing Sun
- Department of Oral Medicine, Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, Taiyuan Shanxi Province, China
| | - Xiaoyan Wang
- Department of Oral Medicine, Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, Taiyuan Shanxi Province, China
| | - Jing Shi
- Department of Oral Medicine, Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, Taiyuan Shanxi Province, China
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181
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Flashner S, Yan KS, Nakagawa H. 3D Organoids: An Untapped Platform for Studying Host-Microbiome Interactions in Esophageal Cancers. Microorganisms 2021; 9:2182. [PMID: 34835308 PMCID: PMC8622040 DOI: 10.3390/microorganisms9112182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/15/2021] [Accepted: 10/17/2021] [Indexed: 12/12/2022] Open
Abstract
The microbiome is an emerging key co-factor in the development of esophageal cancer, the sixth leading cause of cancer death worldwide. However, there is a paucity of data delineating how the microbiome contributes to the pathobiology of the two histological subtypes of esophageal cancer: esophageal squamous cell carcinoma and esophageal adenocarcinoma. This critical knowledge gap is partially due to inadequate modeling of host-microbiome interactions in the etiology of esophageal cancers. Recent advances have enabled progress in this field. Three dimensional (3D) organoids faithfully recapitulate the structure and function of the normal, preneoplastic, and neoplastic epithelia of the esophagus ex vivo and serve as a platform translatable for applications in precision medicine. Elsewhere in the gastrointestinal (GI) tract, the co-culture of 3D organoids with the bacterial microbiome has fostered insight into the pathogenic role of the microbiome in other GI cancers. Herein, we will summarize our current understanding of the relationship between the microbiome and esophageal cancer, discuss 3D organoid models of esophageal homeostasis, review analogous models of host-microbiome interactions in other GI cancers, and advocate for the application of these models to esophageal cancers. Together, we present a promising, novel approach with the potential to ameliorate the burden of esophageal cancer-related morbidity and mortality via improved prevention and therapeutic interventions.
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Affiliation(s)
- Samuel Flashner
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USA; (S.F.); (K.S.Y.)
| | - Kelley S. Yan
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USA; (S.F.); (K.S.Y.)
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Hiroshi Nakagawa
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USA; (S.F.); (K.S.Y.)
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
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Goldoni R, Scolaro A, Boccalari E, Dolci C, Scarano A, Inchingolo F, Ravazzani P, Muti P, Tartaglia G. Malignancies and Biosensors: A Focus on Oral Cancer Detection through Salivary Biomarkers. BIOSENSORS-BASEL 2021; 11:bios11100396. [PMID: 34677352 PMCID: PMC8533918 DOI: 10.3390/bios11100396] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/11/2021] [Accepted: 10/14/2021] [Indexed: 12/15/2022]
Abstract
Oral cancer is among the deadliest types of malignancy due to the late stage at which it is usually diagnosed, leaving the patient with an average five-year survival rate of less than 50%. The booming field of biosensing and point of care diagnostics can, in this regard, play a major role in the early detection of oral cancer. Saliva is gaining interest as an alternative biofluid for non-invasive diagnostics, and many salivary biomarkers of oral cancer have been proposed. While these findings are promising for the application of salivaomics tools in routine practice, studies on larger cohorts are still needed for clinical validation. This review aims to summarize the most recent development in the field of biosensing related to the detection of salivary biomarkers commonly associated with oral cancer. An introduction to oral cancer diagnosis, prognosis and treatment is given to define the clinical problem clearly, then saliva as an alternative biofluid is presented, along with its advantages, disadvantages, and collection procedures. Finally, a brief paragraph on the most promising salivary biomarkers introduces the sensing technologies commonly exploited to detect oral cancer markers in saliva. Hence this review provides a comprehensive overview of both the clinical and technological advantages and challenges associated with oral cancer detection through salivary biomarkers.
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Affiliation(s)
- Riccardo Goldoni
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20122 Milano, Italy; (R.G.); (A.S.); (E.B.); (C.D.); (P.M.)
| | - Alessandra Scolaro
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20122 Milano, Italy; (R.G.); (A.S.); (E.B.); (C.D.); (P.M.)
| | - Elisa Boccalari
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20122 Milano, Italy; (R.G.); (A.S.); (E.B.); (C.D.); (P.M.)
| | - Carolina Dolci
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20122 Milano, Italy; (R.G.); (A.S.); (E.B.); (C.D.); (P.M.)
| | - Antonio Scarano
- Department of Innovative Technologies in Medicine & Dentistry, University of Chieti-Pescara, 66100 Chieti, Italy;
| | - Francesco Inchingolo
- Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy;
| | - Paolo Ravazzani
- National Research Council, Institute of Electronics, Computer and Telecommunication Engineering (CNR IEIIT), 20133 Milano, Italy;
| | - Paola Muti
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20122 Milano, Italy; (R.G.); (A.S.); (E.B.); (C.D.); (P.M.)
| | - Gianluca Tartaglia
- Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, University of Milan, 20122 Milano, Italy; (R.G.); (A.S.); (E.B.); (C.D.); (P.M.)
- UOC Maxillo-Facial Surgery and Dentistry, Fondazione IRCCS Ca Granda, Ospedale Maggiore Policlinico, 20100 Milano, Italy
- Correspondence:
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183
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Sawant S, Dugad J, Parikh D, Srinivasan S, Singh H. Identification & correlation of bacterial diversity in oral cancer and long-term tobacco chewers- A case-control pilot study. J Med Microbiol 2021; 70. [PMID: 34553683 DOI: 10.1099/jmm.0.001417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction. Squamous cell carcinoma is a highly aggressive type of oral cancer (OC). It is the most common cancer among men, and accounts for almost 90 % of all oral cancers in India. Consumption of tobacco is a leading factor contributing to maximum oral cancer incidences as per the WHO.Hypothesis/Gap statement. Researchers reported a direct association of microorganisms with dysbiosis in various oral lesions including oral cancer. However, there is a dearth of information related to compositional changes in the oral microbiome in long-term tobacco chewers and the Indian oral cancer population.Aim. The aim of this study was to identify and correlate the bacterial diversity in the oral cavity of tobacco chewers, patients with oral cancer and healthy subjects in the Indian population.Methods. Oral rinse samples were collected for ten subjects in each group followed by DNA extraction. The variable regions of the bacterial 16S rRNA gene (V6-V8) were amplified, sequenced, processed, and analysed using QIIME2 platform to assess alpha and beta diversity between the study groups.Results. This pilot study showed genus Streptococcus dominated the control group (18.54 %), and the abundance decreased in tobacco and OC group (9.63 and 5.45% respectively); whereas genus Prevotella dominated the tobacco and OC group (21.01 and 26.03% respectively). A shift in abundance of microbiome was observed from control population to oral cancer via the tobacco chewing population. Maximum alpha diversity of oral microbiome was found in Indian tobacco chewers. Beta diversity of tobacco chewers was similar to both the healthy population as well as oral cancer patients suggesting transitioning of the oral microbiome from healthy to oral cancer microbiome via the tobacco chewers microbiome.Conclusion. The data provides evidence of oral bacterial dysbiosis due to tobacco chewing habits that can further lead to progression towards cancer.
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Affiliation(s)
- Shriya Sawant
- Department of Biological Sciences, Sunandan Divatia School of Science, NMIMS University, Vile Parle (West), Mumbai, India
| | - Jinesh Dugad
- Somaiya Ayurvihar -Asian Cancer Institute, Off Eastern Express Highway, Behind Everard Nagar, Somaiya Ayurvihar, Sion (East), Mumbai, India
| | - Deepak Parikh
- Somaiya Ayurvihar -Asian Cancer Institute, Off Eastern Express Highway, Behind Everard Nagar, Somaiya Ayurvihar, Sion (East), Mumbai, India
| | - Sathiyaraj Srinivasan
- Department of Bio & Environmental Technology, College of Natural Science, Seoul Women's University, Seoul 01797, Republic of Korea
- Gene Strand Technologies Pvt. Ltd., Chennai, India
| | - Harinder Singh
- Department of Biological Sciences, Sunandan Divatia School of Science, NMIMS University, Vile Parle (West), Mumbai, India
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Schlund M, Meeus J, Politis C, Ferri J. Management of sinus graft infection-a systematic review. Int J Oral Maxillofac Surg 2021; 51:690-698. [PMID: 34556376 DOI: 10.1016/j.ijom.2021.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 07/06/2021] [Accepted: 09/09/2021] [Indexed: 12/18/2022]
Abstract
Sinus graft infections are rare but serious complications, as they are associated with significant morbidity and sinus graft loss. The aim of this study was to systematically review the management of sinus graft infection in order to define which protocols should be implemented. The terms searched in each database were "sinus graft infection management", "maxillary sinus lift infection", "maxillary sinus graft infection", "maxillary sinus elevation infection", and "maxillary sinus augmentation infection". The management of the sinus graft infection was assessed. The outcomes evaluated were maxillary sinus health and dental implantation results. The initial search yielded 1190 results. Eighteen articles were included, reporting a total of 3319 patients and 217 sinus graft infections. Drainage was performed with an intraoral approach in 13 studies, an endoscopic approach in two studies, and a combined approach in three studies. In every study, a disease-free sinus was finally obtained in all patients, but the outcomes of the graft and the dental implant were more varied. It is not possible to define the best treatment protocol for sinus graft infections based on the published data, since the level of evidence is poor. Management is very heterogeneous. This review highlights the necessity of surgical treatment associated with antibiotic therapy.
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Affiliation(s)
- M Schlund
- Université de Lille, CHU Lille, INSERM, Service de Chirurgie Maxillo-Faciale et Stomatologie, U1008 - Controlled Drug Delivery Systems and Biomaterial, Lille, France.
| | - J Meeus
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - C Politis
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - J Ferri
- Université de Lille, CHU Lille, INSERM, Service de Chirurgie Maxillo-Faciale et Stomatologie, U1008 - Controlled Drug Delivery Systems and Biomaterial, Lille, France
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185
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Lopes EM, Passini MRZ, Kishi LT, Chen T, Paster BJ, Gomes BPFA. Interrelationship between the Microbial Communities of the Root Canals and Periodontal Pockets in Combined Endodontic-Periodontal Diseases. Microorganisms 2021; 9:microorganisms9091925. [PMID: 34576820 PMCID: PMC8465609 DOI: 10.3390/microorganisms9091925] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 08/28/2021] [Accepted: 08/31/2021] [Indexed: 12/31/2022] Open
Abstract
Periodontal and Endodontic diseases are biofilm-related diseases. The presence of microorganisms in root canals (RCs) and the complex microbiota of periodontal pockets (PPs) contribute to the development of endodontic-periodontal diseases. This study performed a systemic analysis using state-of-the-art sequence data to assess the microbial composition of infected RCs and PPs to further assess the microbiota and verify the possibility of cross-infection between these sites. The microbiomes of these combined diseases were examined with a focus on the V3-V4 hypervariable region of the 16S rRNA gene. The number of species in PP was higher than in RC, and there was a predominance of obligate anaerobes and gram-negative bacteria. In the RCs, the genera Enterococcus, Parvimonas, Stomatobaculum predominated, in contrast, the PPs revealed a predominance of Enterococcus, Parvimonas, Stomatobaculum, Peptostreptococcus and Mogibacterium. The RC and PP microbiome was not similar with regards to the sharing of OTUs for phyla and genera (8 and 67, respectively). The evaluation of molecular markers revealed a large number of markers for resistance to antibiotics of the carbapenem and beta-lactam type (broad spectrum). Another relevant finding of this study was the markers related to systemic diseases related to cardiac muscle and rheumatology, among others. In conclusion, the RC microbiota was less complex and diverse than PP. Interactions between microbial communities were present. The shared genus can signal communication between the endodontic and periodontal microbiomes.
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Affiliation(s)
- Erica M. Lopes
- Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, State University of Campinas -UNICAMP, Piracicaba 13400-001, SP, Brazil;
- Correspondence: (E.M.L.); (B.P.F.A.G.)
| | - Maicon R. Z. Passini
- Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, State University of Campinas -UNICAMP, Piracicaba 13400-001, SP, Brazil;
| | - Luciano T. Kishi
- National Laboratory of Scientific Computing, Petrópolis 25715-183, RJ, Brazil;
| | - Tsute Chen
- Department of Molecular Genetics, The Forsyth Institute, Cambridge, MA 02142, USA;
| | - Bruce J. Paster
- Microbiology Department, The Forsyth Institute, Cambridge, MA 02142, USA;
| | - Brenda P. F. A. Gomes
- Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, State University of Campinas -UNICAMP, Piracicaba 13400-001, SP, Brazil;
- Correspondence: (E.M.L.); (B.P.F.A.G.)
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186
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Li Y, Cui J, Liu Y, Chen K, Huang L, Liu Y. Oral, Tongue-Coating Microbiota, and Metabolic Disorders: A Novel Area of Interactive Research. Front Cardiovasc Med 2021; 8:730203. [PMID: 34490384 PMCID: PMC8417575 DOI: 10.3389/fcvm.2021.730203] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 07/21/2021] [Indexed: 12/17/2022] Open
Abstract
Interactions between colonizing microbiota and the host have been fully confirmed, among which the tongue-coating microbiota have a moderate rate of renewal and disease sensitivity and are easily obtained, making them an ideal research subject. Oral microbiota disorders are related to diabetes, obesity, cardiovascular disease, cancer, and other systemic diseases. As an important part of the oral cavity, tongue-coating microbiota can promote gastritis and digestive system tumors, affecting the occurrence and development of multiple chronic diseases. Common risk factors include diet, age, and immune status, among others. Metabolic regulatory mechanisms may be similar between the tongue and gut microbiota. Tongue-coating microbiota can be transferred to the respiratory or digestive tract and create a new balance with local microorganisms, together with the host epithelial cells forming a biological barrier. This barrier is involved in the production and circulation of nitric oxide (NO) and the function of taste receptors, forming the oral-gut-brain axis (similar to the gut-brain axis). At present, the disease model and mechanism of tongue-coating microbiota affecting metabolism have not been widely studied, but they have tremendous potential.
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Affiliation(s)
- Yiwen Li
- National Clinical Research Center for Traditional Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jing Cui
- National Clinical Research Center for Traditional Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yanfei Liu
- The Second Department of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Keji Chen
- National Clinical Research Center for Traditional Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Luqi Huang
- China Academy of Chinese Medical Sciences, Beijing, China
| | - Yue Liu
- National Clinical Research Center for Traditional Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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187
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Zhou X, Hao Y, Peng X, Li B, Han Q, Ren B, Li M, Li L, Li Y, Cheng G, Li J, Ma Y, Zhou X, Cheng L. The Clinical Potential of Oral Microbiota as a Screening Tool for Oral Squamous Cell Carcinomas. Front Cell Infect Microbiol 2021; 11:728933. [PMID: 34485181 PMCID: PMC8416267 DOI: 10.3389/fcimb.2021.728933] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 07/27/2021] [Indexed: 02/05/2023] Open
Abstract
Introduction The oral squamous cell carcinoma (OSCC) is detrimental to patients’ physical and mental health. The prognosis of OSCC depends on the early diagnosis of OSCC in large populations. Objectives Here, the present study aimed to develop an early diagnostic model based on the relationship between OSCC and oral microbiota. Methods Overall, 164 samples were collected from 47 OSCC patients and 48 healthy individuals as controls, including saliva, subgingival plaque, the tumor surface, the control side (healthy mucosa), and tumor tissue. Based on 16S rDNA sequencing, data from all the five sites, and salivary samples only, two machine learning models were developed to diagnose OSCC. Results The average diagnostic accuracy rates of five sites and saliva were 98.17% and 95.70%, respectively. Cross-validations showed estimated external prediction accuracies of 96.67% and 93.58%, respectively. The false-negative rate was 0%. Besides, it was shown that OSCC could be diagnosed on any one of the five sites. In this model, Actinobacteria, Fusobacterium, Moraxella, Bacillus, and Veillonella species exhibited strong correlations with OSCC. Conclusion This study provided a noninvasive and inexpensive way to diagnose malignancy based on oral microbiota without radiation. Applying machine learning methods in microbiota data to diagnose OSCC constitutes an example of a microbial assistant diagnostic model for other malignancies.
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Affiliation(s)
- Xinxuan Zhou
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Yu Hao
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xian Peng
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Bolei Li
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qi Han
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Biao Ren
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Mingyun Li
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Longjiang Li
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Yi Li
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Guo Cheng
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China.,Laboratory of Molecular Translational Medicine, Centre for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Jiyao Li
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yue Ma
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases & West China Hospital of Stomatology & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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188
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Ziauddin SM, Alam MI, Mae M, Oohira M, Higuchi K, Yamashita Y, Ozaki Y, Yoshimura A. Cytotoxic effects of dental calculus particles and freeze-dried Aggregatibacter actinomycetemcomitans and Fusobacterium nucleatum on HSC-2 oral epithelial cells and THP-1 macrophages. J Periodontol 2021; 93:e92-e103. [PMID: 34486125 DOI: 10.1002/jper.21-0196] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 07/23/2021] [Accepted: 08/30/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Periodontitis is an inflammatory disease initiated by dental deposits. Microorganisms in the dental biofilm induce cell death in epithelial cells, contributing to the breakdown of epithelial barrier function. Recently, dental calculus has also been implicated in pyroptotic cell death in oral epithelium. We analyzed the cytotoxic effects of dental calculus and freeze-dried periodontopathic bacteria on oral epithelial cells and macrophages. METHODS HSC-2 (human oral squamous carcinoma cells) and phorbol 12-myristate 13-acetate-differentiated THP-1 macrophages were exposed to dental calculus or one of two species of freeze-dried bacterium, Aggregatibacter actinomycetemcomitans and Fusobacterium nucleatum. Following incubation for 24 hours, we measured cytotoxicity via lactate dehydrogenase release. Cells were then incubated with glyburide, an NLRP3 inflammasome inhibitor, to assess the potential role of pyroptosis. We also conducted a permeability assay to analyze the effects on epithelial barrier function. RESULTS Dental calculus induced dose-dependent cell death in HSC-2 cells, whereas cell death induced by freeze-dried bacteria was insignificant. Conversely, freeze-dried bacteria induced more cell death than dental calculus in THP-1 macrophages. Cell death induced by dental calculus but not by freeze-dried bacteria was inhibited by glyburide, indicating that these are different types of cell death. In the permeability assays, dental calculus but not freeze-dried bacteria attenuated the barrier function of HSC-2 cell monolayers. CONCLUSION Due to the low sensitivity of HSC-2 cells to microbial cytotoxicity, dental calculus had stronger cytotoxic effects on HSC-2 cell monolayers than freeze-dried A. actinomycetemcomitans and F. nucleatum, suggesting that it plays a critical role in the breakdown of crevicular/pocket epithelium integrity.
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Affiliation(s)
- S M Ziauddin
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Mohammad Ibtehaz Alam
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Megumi Mae
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Masayuki Oohira
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kanako Higuchi
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yasunori Yamashita
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yukio Ozaki
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Atsutoshi Yoshimura
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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189
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Joyce H, Taylor MR, Moffat A, Hong M, Isaac D, Fine N, Greenway SC. Changes in the Composition and Function of the Human Salivary Microbiome After Heart Transplantation: A Pilot Study. TRANSPLANT RESEARCH AND RISK MANAGEMENT 2021. [DOI: 10.2147/trrm.s328467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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190
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Association of oral microbiota with lung cancer risk in a low-income population in the Southeastern USA. Cancer Causes Control 2021; 32:1423-1432. [PMID: 34432217 PMCID: PMC8541916 DOI: 10.1007/s10552-021-01490-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 08/17/2021] [Indexed: 12/26/2022]
Abstract
PURPOSE Oral microbiome plays an important role in oral health and systemic diseases, including cancer. We aimed to prospectively investigate the association of oral microbiome with lung cancer risk. METHODS We analyzed 156 incident lung cancer cases (73 European Americans and 83 African Americans) and 156 individually matched controls nested within the Southern Community Cohort Study. Oral microbiota were assessed using 16S rRNA gene sequencing in pre-diagnostic mouth rinse samples. Paired t test and the permutational multivariate analysis of variance test were used to evaluate lung cancer risk association with alpha diversity or beta diversity, respectively. Conditional logistic regression models were used to evaluate the association of individual bacterial abundance or prevalence with lung cancer risk. RESULTS No significant differences were observed for alpha or beta diversity between lung cancer cases and controls. Abundance of families Lachnospiraceae_[XIV], Peptostreptococcaceae_[XI], and Erysipelotrichaceae and species Parvimonas micra was associated with decreased lung cancer risk, with odds ratios (ORs) and 95% confidence intervals (CIs) of 0.76 (0.59-0.98), 0.80 (0.66-0.97), 0.81 (0.67-0.99), and 0.83 (0.71-0.98), respectively (all p < 0.05). Prevalence of five pre-defined oral pathogens were not significantly associated with overall lung cancer risk. Prevalence of genus Bacteroidetes_[G-5] and species Alloprevotella sp._oral_taxon_912, Capnocytophaga sputigena, Lactococcus lactis, Peptoniphilaceae_[G-1] sp._oral_taxon_113, Leptotrichia sp._oral_taxon_225, and Fretibacterium fastidiosum was associated with decreased lung cancer risk, with ORs and 95% CIs of 0.55 (0.30-1.00), 0.36 (0.17-0.73), 0.53 (0.31-0.92), 0.43 (0.21-0.88), 0.43 (0.19-0.94), 0.57 (0.34-0.99), and 0.54 (0.31-0.94), respectively (all p < 0.05). Species L. sp._oral_taxon_225 was significantly associated with decreased lung cancer risk in African Americans (OR [95% CIs] 0.28 [0.12-0.66]; p = 0.00012). CONCLUSION Results from this study suggest that oral microbiota may play a role in the development of lung cancer.
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191
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Quantitative difference of oral pathogen between individuals with gastric cancer and individuals without cancer. Oncotarget 2021; 12:1677-1686. [PMID: 34434496 PMCID: PMC8378772 DOI: 10.18632/oncotarget.28034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 07/13/2021] [Indexed: 12/24/2022] Open
Abstract
The loss of teeth and lack of oral hygiene have been associated with the risk of developing gastric cancer (GC) in several populations evidenced in epidemiological studies. In this study, we quantitatively compared the proportion of oral pathogens in individuals with gastric cancer and individuals without cancer in a referral hospital in the city of Belém, Brazil. This study evaluated 192 patients with GC and 192 patients without cancer. Periodontal clinical examination was performed, and all individuals were submitted to the collection of salivary and dental biofilms. When comparing the median periodontal indexes in the gastric and cancer-free groups, it was statistically significant (p < 0.001) in the gastric cancer group compared to the probing depth of the periodontal pocket. Levels of bacterial DNA were observed in saliva and dental plaque, with a statistically significant difference (p < 0.001) between individuals with cancer and without neoplasia in all the bacteria surveyed. Significant relationships (p < 0.001) between biological agents and GC have been found in bacterial species that cause high rates of periodontal pathology and caries. The results suggest a different quantitative association in the presence of oral pathogens between individuals without cancer and patients with GC. As noted, it cannot be said that the bacteria present in the oral cavity increase the risk of gastric cancer or are aggravating factors of the disease. However, it is worth mentioning that, as it is part of the digestive system, the lack of care for the oral cavity can negatively affect the treatment of patients with gastric cancer.
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The Bigger Picture: Why Oral Mucosa Heals Better Than Skin. Biomolecules 2021; 11:biom11081165. [PMID: 34439831 PMCID: PMC8394648 DOI: 10.3390/biom11081165] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 02/06/2023] Open
Abstract
Wound healing is an essential process to restore tissue integrity after trauma. Large skin wounds such as burns often heal with hypertrophic scarring and contractures, resulting in disfigurements and reduced joint mobility. Such adverse healing outcomes are less common in the oral mucosa, which generally heals faster compared to skin. Several studies have identified differences between oral and skin wound healing. Most of these studies however focus only on a single stage of wound healing or a single cell type. The aim of this review is to provide an extensive overview of wound healing in skin versus oral mucosa during all stages of wound healing and including all cell types and molecules involved in the process and also taking into account environmental specific factors such as exposure to saliva and the microbiome. Next to intrinsic properties of resident cells and differential expression of cytokines and growth factors, multiple external factors have been identified that contribute to oral wound healing. It can be concluded that faster wound closure, the presence of saliva, a more rapid immune response, and increased extracellular matrix remodeling all contribute to the superior wound healing and reduced scar formation in oral mucosa, compared to skin.
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Meyer F, Enax J, Epple M, Amaechi BT, Simader B. Cariogenic Biofilms: Development, Properties, and Biomimetic Preventive Agents. Dent J (Basel) 2021; 9:dj9080088. [PMID: 34436000 PMCID: PMC8394942 DOI: 10.3390/dj9080088] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 12/12/2022] Open
Abstract
Oral biofilms will build up within minutes after cleaning of the dental hard tissues. While the application of remineralizing agents is a well-known approach to prevent dental caries, modern oral care products offer also additional active agents to maintain oral health. Human saliva contains many different organic and inorganic compounds that help to buffer organic acids produced by cariogenic microorganisms. However, most oral care products only contain remineralizing agents. To improve the benefit of those products, further active ingredients are needed. Books, review articles, and original research papers were included in this narrative review. Putting all these data together, we give an overview of oral biofilms and active compounds used in modern oral care products to interact with them. The special focus is on inorganic compounds and their interaction with oral biofilms. While organic compounds have several limitations (e.g., cell toxicity), inorganic compounds based on calcium and/or phosphate (e.g., sodium bicarbonate, hydroxyapatite, calcium carbonate) offer several advantages when used in oral care products. Calcium release can inhibit demineralization, and the release of hydroxide and phosphate ions might help in the buffering of acids. Therefore, the focus of this review is to summarize the scientific background of further active ingredients that can be used for oral care formulations.
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Affiliation(s)
- Frederic Meyer
- Research Department, Dr. Kurt Wolff GmbH & Co. KG, Johanneswerkstr. 34-36, 33611 Bielefeld, Germany; (J.E.); (B.S.)
- Correspondence: ; Tel.: +49-521-8808-6061
| | - Joachim Enax
- Research Department, Dr. Kurt Wolff GmbH & Co. KG, Johanneswerkstr. 34-36, 33611 Bielefeld, Germany; (J.E.); (B.S.)
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitaetsstr. 5-7, 45117 Essen, Germany;
| | - Bennett T. Amaechi
- Department of Comprehensive Dentistry, School of Dentistry, University of Texas Health San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229-3900, USA;
| | - Barbara Simader
- Research Department, Dr. Kurt Wolff GmbH & Co. KG, Johanneswerkstr. 34-36, 33611 Bielefeld, Germany; (J.E.); (B.S.)
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Borsanelli AC, Athayde FRF, Agostinho SD, Riggio MP, Dutra IS. Dental biofilm and its ecological interrelationships in ovine periodontitis. J Med Microbiol 2021; 70. [PMID: 34313584 DOI: 10.1099/jmm.0.001396] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction. Periodontitis, one of the most common oral disorders in sheep, is caused by a mixed and opportunistic microbiota that severely affects the health and welfare of animals. However, little is known about the ecological processes involved and the composition of the microbiota associated with the development of the disease.Hypothesis/Gap Statement. Using high-throughput sequencing of the 16S ribosomal RNA gene and network analysis it would be possible to discriminate the microbiomes of clinically healthy sheep and those with periodontitis and possibly identify the key microorganisms associated with the disease.Aim. The present study aimed to characterise the composition of dental microbiomes and bacterial co-occurrence networks in clinically healthy sheep and animals with periodontitis.Methodology. Dental biofilm samples were collected from ten sheep with periodontitis and ten clinically healthy animals. Bacteria were identified using high-throughput sequencing of the 16S ribosomal RNA gene.Results. The most prevalent genera in the dental microbiota of sheep with periodontitis were Petrimonas, Acinetobacter, Porphyromonas and Aerococcus. In clinically healthy animals, the most significant genera were unclassified Pasteurellaceae, Pseudomonas, and Neisseria. Fusobacterium was found at high prevalence in the microbiomes of both groups. The dental microbiota of sheep in the two clinical conditions presented different profiles and the diversity and richness of bacteria was greater in the diseased animals. Network analyses showed the presence of a large number of antagonistic interactions between bacteria in the dental microbiota of animals with periodontitis, indicating the occurrence of a dysbiotic community. Through the interrelationships, members of the Prevotella genus are likely to be key pathogens, both in the dental microbiota of healthy animals and those with periodontitis. Porphyromonas stood out among the top three nodes with more centrality and the largest number of hubs in the networks of animals with periodontitis.Conclusion. The dental biofilm microbiota associated with ovine periodontitis is dysbiotic and with significant antagonistic interactions, which discriminates healthy animals from diseased animals and highlights the importance of key bacteria, such as Petrimonas, Porphyromonas, Prevotella and Fusobacterium species.
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Affiliation(s)
- Ana Carolina Borsanelli
- Department of Veterinary Medicine, School of Veterinary Medicine and Animal Science, Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brazil
| | - Flávia R F Athayde
- Department of Production and Animal Health, School of Veterinary Medicine, São Paulo State University (Unesp), Araçatuba Campus, São Paulo, Brazil
| | - Sabrina D Agostinho
- Postgraduate Program in Veterinary Medicine, São Paulo State University (Unesp), Jaboticabal Campus, São Paulo, Brazil
| | | | - Iveraldo S Dutra
- Department of Production and Animal Health, School of Veterinary Medicine, São Paulo State University (Unesp), Araçatuba Campus, São Paulo, Brazil
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Vishwakarma A, Verma D. Microorganisms: crucial players of smokeless tobacco for several health attributes. Appl Microbiol Biotechnol 2021; 105:6123-6132. [PMID: 34331556 DOI: 10.1007/s00253-021-11460-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 01/20/2023]
Abstract
Global consumption of smokeless tobacco (SLT) reached 300 million users worldwide majorly from middle-income countries. More than 4000 chemical compounds represent it as one of the noxious consumable products by humans. Besides toxicants/carcinogens, the heavy microbial load on smokeless tobacco further keeps human health at higher risk. Several of these inhabitant microbes participate in biofilm formation and secrete endotoxin/mycotoxins and proinflammatory-like molecules, leading to several oral diseases. Tobacco-associated bacteria exhibit their role in tobacco-specific nitrosamines (TSNAs) formation and acetaldehyde production; both are well-documented carcinogens. Moreover, tobacco exhibits the potential to alter the oral microbiome and induce dysbiotic conditions that lead to the onset of several oral and systemic diseases. Traditional cultivation approaches of microbiology provide partial information of microbial communities of a habitat; therefore, microbiomics has now been employed to study the metagenomes of entire microbial communities. In the past 5 years, few NGS-based investigations have revealed that SLT harbors four dominant phyla (Firmicutes, Proteobacteria, Actinobacteria, and Bacteroidetes) dominating Bacillus spp. and/or Pseudomonas spp. However, functional characterization of their genetic elements will be a more informative attribute to understand the correlation between inhabitant microbial diversity and their relatedness concerning abundance and diseases. This review provides an update on the microbial diversity of SLT and its associated attributes in human health. KEY POINTS: • Heavy microbial load on smokeless tobacco alarms for poor oral hygiene. • Inhabitant microorganisms of SLT participate in TSNA and biofilm formation. • SLTs alter the oral microbiome and causes oral dysbiosis.
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Affiliation(s)
- Akanksha Vishwakarma
- Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh, 226025, India
| | - Digvijay Verma
- Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh, 226025, India.
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Thomas C, Minty M, Vinel A, Canceill T, Loubières P, Burcelin R, Kaddech M, Blasco-Baque V, Laurencin-Dalicieux S. Oral Microbiota: A Major Player in the Diagnosis of Systemic Diseases. Diagnostics (Basel) 2021; 11:1376. [PMID: 34441309 PMCID: PMC8391932 DOI: 10.3390/diagnostics11081376] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 07/28/2021] [Accepted: 07/28/2021] [Indexed: 02/06/2023] Open
Abstract
The oral cavity is host to a complex and diverse microbiota community which plays an important role in health and disease. Major oral infections, i.e., caries and periodontal diseases, are both responsible for and induced by oral microbiota dysbiosis. This dysbiosis is known to have an impact on other chronic systemic diseases, whether triggering or aggravating them, making the oral microbiota a novel target in diagnosing, following, and treating systemic diseases. In this review, we summarize the major roles that oral microbiota can play in systemic disease development and aggravation and also how novel tools can help investigate this complex ecosystem. Finally, we describe new therapeutic approaches based on oral bacterial recolonization or host modulation therapies. Collaboration in diagnosis and treatment between oral specialists and general health specialists is of key importance in bridging oral and systemic health and disease and improving patients' wellbeing.
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Affiliation(s)
- Charlotte Thomas
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
| | - Matthieu Minty
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
| | - Alexia Vinel
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
| | - Thibault Canceill
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- UMR CNRS 5085, Centre Interuniversitaire de Recherche et d’Ingénierie des Matériaux (CIRIMAT), Université Paul Sabatier, 35 Chemin des Maraichers, CEDEX 9, 31062 Toulouse, France
| | - Pascale Loubières
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
| | - Remy Burcelin
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
| | - Myriam Kaddech
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
| | - Vincent Blasco-Baque
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
| | - Sara Laurencin-Dalicieux
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- INSERM UMR 1295, Centre d’Epidémiologie et de Recherche en Santé des Populations de Toulouse (CERPOP), Epidémiologie et Analyse en Santé Publique, Risques, Maladies Chroniques et Handicaps, 37 Allées Jules Guesdes, 31000 Toulouse, France
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Suárez LJ, Arboleda S, Angelov N, Arce RM. Oral Versus Gastrointestinal Mucosal Immune Niches in Homeostasis and Allostasis. Front Immunol 2021; 12:705206. [PMID: 34290715 PMCID: PMC8287884 DOI: 10.3389/fimmu.2021.705206] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/22/2021] [Indexed: 12/15/2022] Open
Abstract
Different body systems (epidermis, respiratory tract, cornea, oral cavity, and gastrointestinal tract) are in continuous direct contact with innocuous and/or potentially harmful external agents, exhibiting dynamic and highly selective interaction throughout the epithelia, which function as both a physical and chemical protective barrier. Resident immune cells in the epithelia are constantly challenged and must distinguish among antigens that must be either tolerated or those to which a response must be mounted for. When such a decision begins to take place in lymphoid foci and/or mucosa-associated lymphoid tissues, the epithelia network of immune surveillance actively dominates both oral and gastrointestinal compartments, which are thought to operate in the same immune continuum. However, anatomical variations clearly differentiate immune processes in both the mouth and gastrointestinal tract that demonstrate a wide array of independent immune responses. From single vs. multiple epithelia cell layers, widespread cell-to-cell junction types, microbial-associated recognition receptors, dendritic cell function as well as related signaling, the objective of this review is to specifically contrast the current knowledge of oral versus gut immune niches in the context of epithelia/lymphoid foci/MALT local immunity and systemic output. Related differences in 1) anatomy 2) cell-to-cell communication 3) antigen capture/processing/presentation 4) signaling in regulatory vs. proinflammatory responses and 5) systemic output consequences and its relations to disease pathogenesis are discussed.
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Affiliation(s)
- Lina J Suárez
- Departamento de Ciencias Básicas y Medicina Oral, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Silie Arboleda
- Department of Periodontics and Dental Hygiene, School of Dentistry, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Nikola Angelov
- Department of Periodontics and Dental Hygiene, School of Dentistry, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Roger M Arce
- Department of Periodontics and Dental Hygiene, School of Dentistry, University of Texas Health Science Center at Houston, Houston, TX, United States
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Herreros-Pomares A, Llorens C, Soriano B, Zhang F, Gallach S, Bagan L, Murillo J, Jantus-Lewintre E, Bagan J. Oral microbiome in Proliferative Verrucous Leukoplakia exhibits loss of diversity and enrichment of pathogens. Oral Oncol 2021; 120:105404. [PMID: 34225130 DOI: 10.1016/j.oraloncology.2021.105404] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/17/2021] [Accepted: 06/15/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Oral microbiome plays an important role in oral diseases. Among them, proliferative verrucous leucoplakia (PVL) is an uncommon form of progressive multifocal leukoplakia with a worryingly rate of malignant transformation. Here, we aimed to characterize the oral microbiome of PVL patients and compare it with those of healthy controls. MATERIAL AND METHODS Oral biopsies from ten PVL patients and five healthy individuals were obtained and used to compare their microbial communities. The sequence of the V3-V4 region of 16S rRNA gene was used as the taxonomic basis to estimate and analyze the composition and diversity of bacterial populations present in the samples. RESULTS Our results show that the oral microbial composition and diversity are significantly different among PVL patients and healthy donors. The average number of observed operational taxonomic units (OTUs) was higher for healthy donors than for PVL, proving a loss of diversity in PVL. Several OTUs were found to be more abundant in either group. Among those that were significantly enriched in PVL patients, potential protumorigenic pathogens like Oribacterium sp. oral taxon 108, Campylobacter jejuni, uncultured Eubacterium sp., Tannerella, and Porphyromonas were identified. CONCLUSION Oral microbiome dysbiosis was found in patients suffering from PVL. To the best of our knowledge, this is the first study investigating the oral microbiome alterations in PVL and, due to the limited number of participants, additional studies are needed. Oral microbiota-based biomarkers may be helpful in predicting the risks for the development of PVL.
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Affiliation(s)
- Alejandro Herreros-Pomares
- Molecular Oncology Laboratory, Fundación Hospital General Universitario de Valencia, Valencia, Spain; CIBERONC, Valencia, Spain
| | - Carlos Llorens
- Biotechvana, Parc Cientific, Universitat de València, Paterna, Valencia, Spain
| | - Beatriz Soriano
- Biotechvana, Parc Cientific, Universitat de València, Paterna, Valencia, Spain
| | - Feiyu Zhang
- Molecular Oncology Laboratory, Fundación Hospital General Universitario de Valencia, Valencia, Spain
| | - Sandra Gallach
- Molecular Oncology Laboratory, Fundación Hospital General Universitario de Valencia, Valencia, Spain; CIBERONC, Valencia, Spain; TRIAL Mixed Unit, Centro de Investigación Príncipe Felipe-Fundación para la Investigación del Hospital General Universitario de Valencia, Valencia, Spain
| | - Leticia Bagan
- Medicina Oral Unit, Stomatology Department, Valencia University, Spain
| | - Judith Murillo
- Department of Stomatology and Maxillofacial Surgery, Hospital General Universitario de Valencia, Valencia, Spain
| | - Eloísa Jantus-Lewintre
- Molecular Oncology Laboratory, Fundación Hospital General Universitario de Valencia, Valencia, Spain; CIBERONC, Valencia, Spain; TRIAL Mixed Unit, Centro de Investigación Príncipe Felipe-Fundación para la Investigación del Hospital General Universitario de Valencia, Valencia, Spain; Department of Biotechnology, Universitat Politècnica de València, Valencia, Spain.
| | - José Bagan
- CIBERONC, Valencia, Spain; Medicina Oral Unit, Stomatology Department, Valencia University, Spain; Department of Stomatology and Maxillofacial Surgery, Hospital General Universitario de Valencia, Valencia, Spain.
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199
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Ingham AC, Kielsen K, Mordhorst H, Ifversen M, Aarestrup FM, Müller KG, Pamp SJ. Microbiota long-term dynamics and prediction of acute graft-versus-host disease in pediatric allogeneic stem cell transplantation. MICROBIOME 2021; 9:148. [PMID: 34183060 PMCID: PMC8240369 DOI: 10.1186/s40168-021-01100-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/20/2021] [Indexed: 05/11/2023]
Abstract
BACKGROUND Patients undergoing allogeneic hematopoietic stem cell transplantation (HSCT) exhibit changes in their gut microbiota and are experiencing a range of complications, including acute graft-versus-host disease (aGvHD). It is unknown if, when, and under which conditions a re-establishment of microbial and immunological homeostasis occurs. It is also unclear whether microbiota long-term dynamics occur at other body sites than the gut such as the mouth or nose. Moreover, it is not known whether the patients' microbiota prior to HSCT holds clues to whether the patient would suffer from severe complications subsequent to HSCT. Here, we take a holobiont perspective and performed an integrated host-microbiota analysis of the gut, oral, and nasal microbiota in 29 children undergoing allo-HSCT. RESULTS The bacterial diversity decreased in the gut, nose, and mouth during the first month and reconstituted again 1-3 months after allo-HSCT. The microbial community composition traversed three phases over 1 year. Distinct taxa discriminated the microbiota temporally at all three body sides, including Enterococcus spp., Lactobacillus spp., and Blautia spp. in the gut. Of note, certain microbial taxa appeared already changed in the patients prior to allo-HSCT as compared with healthy children. Acute GvHD occurring after allo-HSCT could be predicted from the microbiota composition at all three body sites prior to HSCT. The reconstitution of CD4+ T cells, TH17, and B cells was associated with distinct taxa of the gut, oral, and nasal microbiota. CONCLUSIONS This study reveals for the first time bacteria in the mouth and nose that may predict aGvHD. Monitoring of the microbiota at different body sites in HSCT patients and particularly through involvement of samples prior to transplantation may be of prognostic value and could assist in guiding personalized treatment strategies. The identification of distinct bacteria that have a potential to predict post-transplant aGvHD might provide opportunities for an improved preventive clinical management, including a modulation of microbiomes. The host-microbiota associations shared between several body sites might also support an implementation of more feasible oral and nasal swab sampling-based analyses. Altogether, the findings suggest that the microbiota and host factors together could provide actionable information to guiding precision medicine. Video Abstract.
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Affiliation(s)
- Anna Cäcilia Ingham
- Research Group for Genomic Epidemiology, Technical University of Denmark, Kongens Lyngby, Denmark
- Present address: Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Katrine Kielsen
- Institute for Inflammation Research, Department of Rheumatology and Spine Disease, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Hanne Mordhorst
- Research Group for Genomic Epidemiology, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Marianne Ifversen
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Frank M Aarestrup
- Research Group for Genomic Epidemiology, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Klaus Gottlob Müller
- Institute for Inflammation Research, Department of Rheumatology and Spine Disease, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Sünje Johanna Pamp
- Research Group for Genomic Epidemiology, Technical University of Denmark, Kongens Lyngby, Denmark.
- Present address: Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark.
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Watanabe A, Kawada-Matsuo M, Le MNT, Hisatsune J, Oogai Y, Nakano Y, Nakata M, Miyawaki S, Sugai M, Komatsuzawa H. Comprehensive analysis of bacteriocins in Streptococcus mutans. Sci Rep 2021; 11:12963. [PMID: 34155274 PMCID: PMC8217173 DOI: 10.1038/s41598-021-92370-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 06/07/2021] [Indexed: 12/24/2022] Open
Abstract
Streptococcus mutans produces bacteriocins that show antibacterial activity against several bacteria. However, comprehensive analysis of these bacteriocins has not been well done. In this study, we isolated 125 S. mutans strains from volunteers and determined their whole genome sequence. Based on the genome analysis, the distribution of each bacteriocin gene (mutacins I-IV, K8 and Smb) was investigated. We found 17, 5, and 2 strains showing 100% matches with mutacin I, mutacin II and mutacin III, respectively. Five mutacin III-positive strains had 2 mismatches compared to mature mutacin III. In 67 mutacin IV-positive strains, 38 strains showed 100% match with mutacin IV, while 29 strains showed some variations. In 23 mutacin K8- and 32 mutacin Smb-positive strains, all except one mutacin K8-positive strain showed 100% match with the mature peptides. Among 125 strains, 84 (65.1%), 26 (20.2%), and 5 (3.9%) strains were positive for one, two and three bacteriocin genes, respectively. Then, the antibacterial activity against oral streptococci and other oral bacterial species was investigated by using bacteriocin gene single-positive strains. Each bacteriocin gene-positive strain showed a different pattern of antibacterial activity. These results speculate that individual S. mutans strains may affect the bacterial composition of dental plaques.
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Affiliation(s)
- Atsuko Watanabe
- Department of Orthodontics and Dentofacial Orthopedics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Miki Kawada-Matsuo
- Department of Bacteriology, Hiroshima University Graduate School of Biomedical and Health Sciences, Kasumi 1-2-3, Hiroshima City, Hiroshima, 734-8551, Japan.,Project Research Centre for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima, Japan
| | - Mi Nguyen-Tra Le
- Department of Bacteriology, Hiroshima University Graduate School of Biomedical and Health Sciences, Kasumi 1-2-3, Hiroshima City, Hiroshima, 734-8551, Japan.,Project Research Centre for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima, Japan
| | - Junzo Hisatsune
- Project Research Centre for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima, Japan.,Antimicrobial Resistance Research Centre, National Institute of Infectious Diseases, Higashi Murayama, Japan
| | - Yuichi Oogai
- Department of Oral Microbiology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yoshio Nakano
- Department of Chemistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Masanobu Nakata
- Department of Oral Microbiology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shouichi Miyawaki
- Department of Orthodontics and Dentofacial Orthopedics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Motoyuki Sugai
- Project Research Centre for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima, Japan.,Antimicrobial Resistance Research Centre, National Institute of Infectious Diseases, Higashi Murayama, Japan
| | - Hitoshi Komatsuzawa
- Department of Bacteriology, Hiroshima University Graduate School of Biomedical and Health Sciences, Kasumi 1-2-3, Hiroshima City, Hiroshima, 734-8551, Japan. .,Project Research Centre for Nosocomial Infectious Diseases, Hiroshima University, Hiroshima, Japan.
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