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Zhu W, Shen W, Wang J, Xu Y, Zhai R, Zhang J, Wang M, Wang M, Liu L. Capnocytophaga gingivalis is a potential tumor promotor in oral cancer. Oral Dis 2024; 30:353-362. [PMID: 36093607 DOI: 10.1111/odi.14376] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/30/2022] [Accepted: 08/27/2022] [Indexed: 02/18/2024]
Abstract
OBJECTIVES To investigate the role of oral microbiome in promoting oral squamous cell carcinoma (OSCC) development. MATERIALS AND METHODS We investigated the salivary microbiome of 108 controls and 70 OSCC cases by16S rRNA gene sequencing and detected the fluorescence signal of OSCC-related pathological bacteria by fluorescence in situ hybridization assay (FISH). The invasion and migration assays were used to show the differences of invasive and migrative abilities between control and experimental groups. Quantitative real-time PCR and Western blotting were used to verify the epithelial-to-mesenchymal transition (EMT). RESULTS In our study, the overall microbiome abundance and composition were richer in the 108 controls than in the 70 OSCC cases. We demonstrated that Streptococcus, Capnocytophaga, Peptostreptococcus, and Lactobacillus were highly abundant in the saliva of OSCC patients by 16S rDNA sequencing and FISH. Moreover, we found that Capnocytophaga gingivalis (C. gingivalis) was highly presented in OSCC tissues by FISH. We focused on C. gingivalis and found that its supernatant induced OSCC cells to undergo EMT, causing the cells to acquire a mesenchymal phenotype associated with highly invasive and metastatic properties. CONCLUSION Taken together, these results indicated that C. gingivalis might invade OSCC tissues and played an important role in OSCC by promoting OSCC invasion and metastasis by inducing EMT. Hence, the role of C. gingivalis in cancer progression revealed a new direction for the research of OSCC.
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Affiliation(s)
- Weiwen Zhu
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Weili Shen
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Jie Wang
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Yanbin Xu
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Rundong Zhai
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Jiayi Zhang
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Mengqi Wang
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Mengyao Wang
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Laikui Liu
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
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Vanwielendaele M, Chérif MY, Hing M, Colman M, Ferchichi MA, Raoul JF, Maillart E, Badot V, Clevenbergh P. Hematogenous septic arthritis of a non-prosthetic shoulder caused by Capnocytophaga canimorsus: A case report and review of the literature. IDCases 2023; 31:e01717. [PMID: 36852409 PMCID: PMC9958378 DOI: 10.1016/j.idcr.2023.e01717] [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: 11/22/2022] [Revised: 02/12/2023] [Accepted: 02/12/2023] [Indexed: 02/15/2023] Open
Abstract
Capnocytophaga canimorsus, oral inhabitants of dogs and cats is a cause of zoonotic infections. It is transmitted to humans by bites, scratches, licks, or close exposure to these animals. Infections due to Capnocytophaga canimorsus have a wide range of severity and can sometimes be fatal. We report the case of an 89-years-old man who suffered from a sudden swollen native right shoulder. The blood test revealed an inflammatory syndrome and cytologic evaluation of joint aspiration showed an elevated nucleated cells count suspicious of infection. A Gram-negative bacillus grew after 48 h in the arthrocentesis and was identified as Capnocytophaga canimorsus. After 4 days, blood culture also grew Capnocytophaga canimorsus leading to the diagnosis of hematogenous septic arthritis of a non-prosthetic right shoulder. Antimicrobial therapy was empirically started with cefuroxime then switched to doxycycline for seven weeks with good clinical outcomes. It is important to inquire about patients' environment including their proximity to animals as it can lead to zoonotic infections that can be of high severity. Moreover, hygiene rules must be applied when dog scratches or lick wounds occurred to avoid the spread of zoonotic germs. Prophylactic antibiotic therapy should be given for animal bites.
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Affiliation(s)
- Maxime Vanwielendaele
- Internal Medicine Department, University Hospital Brugmann, Université Libre de Bruxelles (ULB), Brussels, Belgium,Corresponding author.
| | - Mohammad Yassine Chérif
- Rheumatic Diseases Clinic, University Hospital Brugmann, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Mony Hing
- Laboratory of Microbiology, University Hospital Brugmann, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Michiel Colman
- Internal Medicine Department, University Hospital Brugmann, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Mohamed Amine Ferchichi
- Orthopedic Department, University Hospital Brugmann, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Joseph Fritz Raoul
- Internal Medicine Department, Université Notre Dame d′Haïti, Faculté de Médecine et des Sciences de la Santé, Port-au-Prince, Haiti
| | - Eveline Maillart
- Infectious Diseases Clinic, University Hospital Brugmann, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Valérie Badot
- Rheumatic Diseases Clinic, University Hospital Brugmann, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Philippe Clevenbergh
- Infectious Diseases Clinic, University Hospital Brugmann, Université Libre de Bruxelles (ULB), Brussels, Belgium
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3
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Fernández Vecilla D, Aspichueta Vivanco C, Angulo López I, Baraia-Etxaburu Artetxe JM, Renzi F, Díaz de Tuesta del Arco JL. A case of septic arthritis caused by Capnocytophaga canimorsus in an HIV patient. Access Microbiol 2022; 4:acmi000368. [PMID: 36004364 PMCID: PMC9394666 DOI: 10.1099/acmi.0.000368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 05/11/2022] [Indexed: 12/04/2022] Open
Abstract
Invasive infections caused by Capnocytophaga canimorsus, a Gram-negative rod found in the oral cavity of healthy dogs and cats, are rare but they are increasing worldwide. We report a case of septic arthritis in a native knee joint due to this micro-organism. A 57-year-old man, with a well-controlled chronic HIV infection, attended the Emergency Department because of left knee pain and shivering without measured fever. A knee arthrocentesis and a computed tomography scan were performed, revealing septic arthritis with collections in the left leg posterior musculature. He was admitted to the Infectious Diseases Department for antibiotic treatment. Initial synovial fluid was inoculated in blood culture bottles, and the anaerobic one was positive after 63 h. Gram stain revealed fusiform Gram-negative rods, identified as C. canimorsus by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF) directly from the bottle. Identification was confirmed by 16S rRNA sequencing and serotyping was performed by PCR, with serovar A as the outcome. Due to an unfavourable clinical course, the patient required two surgical cleanings and after appropriate antibiotic treatment he was discharged 2 months later.
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Affiliation(s)
| | | | - Itziar Angulo López
- Basurto University Hospital, Avenida Montevideo n°18, 48013, Bilbao (Vizcaya), Spain
| | | | - Francesco Renzi
- Namur Research Institute for Life Sciences, Research Unit in Biology of Microorganisms, University of Namur, 61 Rue de Bruxelles, 5000 Namur, Belgium
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Identification of Bull Semen Microbiome by 16S Sequencing and Possible Relationships with Fertility. Microorganisms 2021; 9:microorganisms9122431. [PMID: 34946031 PMCID: PMC8705814 DOI: 10.3390/microorganisms9122431] [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: 11/09/2021] [Revised: 11/22/2021] [Accepted: 11/22/2021] [Indexed: 01/04/2023] Open
Abstract
Reports on the use of 16S sequencing for the identification of bacteria in healthy animals are lacking. Bacterial contamination of bull semen can have a negative effect on the sperm quality. The aims of this study were threefold: to identify bacteria in the semen of healthy bulls using 16S sequencing; to investigate the differences in the bacterial community between individual bulls; and to establish if there was a relationship between the bacteria isolated and bull fertility. Semen from 18 bulls of known fertility was used for the DNA extraction and 16S sequencing; 107 bacterial genera were identified. The differences in the amplicon sequence variants (ASVs) and the numbers of genera between bulls were noted. Negative correlations (p < 0.05) between several bacterial genera with Curvibacter, Rikenellaceae RC9-gut-group and Dyella spp. were seen. Other negatively correlated bacteria were Cutibacterium, Ruminococcaceae UCG-005, Ruminococcaceae UCG-010 and Staphylococcus, all within the top 20 genera. Two genera, W5053 and Lawsonella, were enriched in bulls of low fertility; this is the first time that these bacteria have been reported in bull semen samples. The majority of the bacteria were environmental organisms or were species originating from the mucous membranes of animals and humans. The results of this study indicate that differences in the seminal microbiota of healthy bulls occur and might be correlated with fertility.
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Matsumoto T, Matsumoto-Matsubara M, Horiuchi K, Arai E, Negishi T, Natori T, Kawakami Y. Antibiotic resistance and the presence of bla CfxA and bla CSP genes in β-lactamase-producing clinical Capnocytophaga isolates from a university hospital in Japan. J Med Microbiol 2021; 70. [PMID: 34668852 DOI: 10.1099/jmm.0.001448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction . Capnocytophaga species are common inhabitants of the oral cavity and can be responsible for systemic diseases in immunocompromised patients with granulocytopenia. Furthermore, it has been reported that some clinical isolates of Capnocytophaga species produce extended-spectrum β-lactamases (ESBLs).Gap statement. Information is lacking about the types of β-lactamase genes possessed by Capnocytophaga spp. and the antimicrobial susceptibility of Capnocytophaga spp. possessing each β-lactamase gene.Aim. The aim of this study was to investigate the presence of β-lactamase genes in clinical strains of β-lactamase-producing Capnocytophaga species isolated from clinical samples acquired at Shinshu University Hospital and examine the antimicrobial susceptibility of those strains.Methodology. The β-lactamase-producing Capnocytophaga species (n=49) were obtained from clinical specimens. PCR assays were used to detect bla CfxA, bla CSP, bla TEM, bla CepA/CblA and transposon Tn4555 genes. Southern hybridization assays were used to detect bla CfxA and bla CSP. The minimum inhibitory concentration of some β-lactams was determined using the E-test method.Results. PCR analysis indicated that the bla CfxA gene was present in 15 (30.6 %) and the bla CSP gene in 35 (69.3 %) of the 49 Capnocytophaga strains investigated, . Both bla CfxA and bla CSP genes were detected in a Capnocytophaga gingivalis strain. The PCR results were confirmed by Southern hybridization assays. Transposon Tn4555 was only detected in Capnocytophaga spp. harbouring the bla CfxA gene. All the β-lactamase-producing Capnocytophaga isolates were susceptible to ceftazidime-clavulanic acid, cefoxitin and imipenem. In contrast, most of the isolates were resistant to amoxicillin.Conclusions. The clinical isolates of Capnocytophaga spp. showed a high prevalence of the bla CSP gene in Japan. The presence of the bla CSP gene was distributed in Capnocytophaga sputigena as well as other Capnocytophaga spp. These results seem to suggest the dissemination of bla CfxA and bla CSP β-lactamase genes among Capnocytophaga species.
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Affiliation(s)
- Takehisa Matsumoto
- Department of Laboratory Sciences, Gunma University Graduate School of Health Sciences, 3-39-22 Showa-machi, Maebashi, Gunma 371-8514, Japan.,Department of Laboratory Medicine, Shinshu University Hospital, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - Miki Matsumoto-Matsubara
- Department of Laboratory Medicine, Shinshu University Hospital, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan.,Clinical Investigation and Research Unit, Gunma University Hospital, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Kazuki Horiuchi
- Department of Laboratory Medicine, Shinshu University Hospital, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - Eriko Arai
- Department of Laboratory Medicine, Shinshu University Hospital, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - Tatsuya Negishi
- Department of Laboratory Medicine, Shinshu University Hospital, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - Tatsuya Natori
- Department of Laboratory Medicine, Shinshu University Hospital, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - Yoshiyuki Kawakami
- Department of Laboratory Medicine, Shinshu University Hospital, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan.,Department of Health and Medical Sciences, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
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6
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Okamoto-Shibayama K, Warita T, Kokubu E, Kita D, Kikuchi Y, Ishihara K. Role of Hyalin-like Protein in Gliding and Biofilm Formation by Capnocytophaga Ochracea. THE BULLETIN OF TOKYO DENTAL COLLEGE 2021; 62:89-98. [PMID: 33994426 DOI: 10.2209/tdcpublication.2020-0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Capnocytophaga ochracea possesses a type-IX secretion system that exports proteins which have a gliding motility-associated C-terminal (CTD) domain. This system is found in several species of the Bacteroidetes phylum. Hyalin, a large protein encoded by Coch_0033 in C. ochracea ATCC 27872, has a CTD domain and is posited to be involved in quorum sensing according to the database of the Kyoto Encyclopedia of Genes and Genomes. This suggests that it plays a role in biofilm formation via interbacterial communication. The aim of this study was to investigate the potential role of the hyalin-like protein coded by the Coch_0033 gene in gliding and biofilm formation of C. ochracea. A hyalin-like protein-deficient mutant strain of C. ochracea, designated mutant WR-1, was constructed through insertion of the ermF-ermAM cassette into the target gene. The spreading feature at the edge of the colony was lost in the mutant strain. Crystal violet and confocal laser scanning microscopy revealed no difference between the quantity of biofilm organized by the mutant and that organized by the wild-type strain. These data suggest that the hyalin-like protein encoded by the Coch_0033 gene is indeed involved in C. ochracea gliding activity.
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Affiliation(s)
- Kazuko Okamoto-Shibayama
- Department of Microbiology, Tokyo Dental College.,Oral Health Science Center, Tokyo Dental College
| | | | - Eitoyo Kokubu
- Department of Microbiology, Tokyo Dental College.,Oral Health Science Center, Tokyo Dental College
| | - Daichi Kita
- Department of Periodontology, Tokyo Dental College
| | - Yuichiro Kikuchi
- Department of Microbiology, Tokyo Dental College.,Oral Health Science Center, Tokyo Dental College
| | - Kazuyuki Ishihara
- Department of Microbiology, Tokyo Dental College.,Oral Health Science Center, Tokyo Dental College
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7
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Chesdachai S, Tai DBG, Yetmar ZA, Misra A, Ough N, Abu Saleh O. The Characteristics of Capnocytophaga Infection: 10 Years of Experience. Open Forum Infect Dis 2021; 8:ofab175. [PMID: 34327254 PMCID: PMC8314946 DOI: 10.1093/ofid/ofab175] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/31/2021] [Indexed: 11/13/2022] Open
Abstract
Background Capnocytopha ga is a gram-negative, facultative anaerobe. Human infection is rare but can lead to devastating outcomes. Capnocytophaga canimorsus can cause sepsis following an animal bite, whereas human-oral-associated Capnocytophaga infections were reported in immunocompromised patients. Current data on these infections are not robust. Our goal is to provide a contemporary description of a unique characteristic of Capnocytophaga infections. Methods We performed a retrospective review of all patients with Capnocytophaga infection from January 2010 to August 2020 at 3 main hospitals of Mayo Clinic in Rochester, Minnesota; Scottsdale, Arizona; and Jacksonville, Florida. We collected baseline demographic data, clinical characteristics, microbiological data, and outcomes of C. canimorsus and human-oral-associated Capnocytophaga infection. Results Among 82 patients with Capnocytophaga infection, 46 patients (56.0%) had bacteremia. The most common species identified in this group was C. sputigena (57.9%), followed by C. canimorsus (34.8%). Patients with human-oral-associated Capnocytophaga bacteremia were often immunocompromised, presented with neutropenic fever, and had worse 6-month all-cause mortality compared to C. canimorsus bacteremia (36.4% vs 6.2%, P = .03). They also had a higher β-lactamase production rate (36.4% vs 0.0%, P = .02). Among patients without bacteremia, the main clinical syndrome was polymicrobial head and neck infections (47.2%). Conclusions Human-oral-associated Capnocytophaga bacteremia occurs primarily in immunocompromised patients, particularly those with hematologic malignancy. In contrast, C. canimorsus bacteremia is more likely to present with community-onset infection related to zoonotic exposure. Human-oral-associated Capnocytophaga infection without bacteremia is frequently isolated in polymicrobial infection; this phenomenon's significance is yet to be fully understood.
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Affiliation(s)
- Supavit Chesdachai
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Don Bambino Geno Tai
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Zachary A Yetmar
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Anisha Misra
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Natalie Ough
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Omar Abu Saleh
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
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8
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Durán C, Ciucci S, Palladini A, Ijaz UZ, Zippo AG, Sterbini FP, Masucci L, Cammarota G, Ianiro G, Spuul P, Schroeder M, Grill SW, Parsons BN, Pritchard DM, Posteraro B, Sanguinetti M, Gasbarrini G, Gasbarrini A, Cannistraci CV. Nonlinear machine learning pattern recognition and bacteria-metabolite multilayer network analysis of perturbed gastric microbiome. Nat Commun 2021; 12:1926. [PMID: 33771992 PMCID: PMC7997970 DOI: 10.1038/s41467-021-22135-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 02/24/2021] [Indexed: 12/11/2022] Open
Abstract
The stomach is inhabited by diverse microbial communities, co-existing in a dynamic balance. Long-term use of drugs such as proton pump inhibitors (PPIs), or bacterial infection such as Helicobacter pylori, cause significant microbial alterations. Yet, studies revealing how the commensal bacteria re-organize, due to these perturbations of the gastric environment, are in early phase and rely principally on linear techniques for multivariate analysis. Here we disclose the importance of complementing linear dimensionality reduction techniques with nonlinear ones to unveil hidden patterns that remain unseen by linear embedding. Then, we prove the advantages to complete multivariate pattern analysis with differential network analysis, to reveal mechanisms of bacterial network re-organizations which emerge from perturbations induced by a medical treatment (PPIs) or an infectious state (H. pylori). Finally, we show how to build bacteria-metabolite multilayer networks that can deepen our understanding of the metabolite pathways significantly associated to the perturbed microbial communities.
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Affiliation(s)
- Claudio Durán
- Biomedical Cybernetics Group, Biotechnology Center (BIOTEC), Center for Molecular and Cellular Bioengineering (CMCB), Center for Systems Biology Dresden (CSBD), Cluster of Excellence Physics of Life (PoL), Department of Physics, Technische Universität Dresden, Dresden, Germany
| | - Sara Ciucci
- Biomedical Cybernetics Group, Biotechnology Center (BIOTEC), Center for Molecular and Cellular Bioengineering (CMCB), Center for Systems Biology Dresden (CSBD), Cluster of Excellence Physics of Life (PoL), Department of Physics, Technische Universität Dresden, Dresden, Germany
| | - Alessandra Palladini
- Biomedical Cybernetics Group, Biotechnology Center (BIOTEC), Center for Molecular and Cellular Bioengineering (CMCB), Center for Systems Biology Dresden (CSBD), Cluster of Excellence Physics of Life (PoL), Department of Physics, Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden, Helmholtz Zentrum Munchen, Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- German Center for Diabetes Research (DZD e.V.), Neuherberg, Germany
| | - Umer Z Ijaz
- Department of Infrastructure and Environment University of Glasgow, School of Engineering, Glasgow, UK
| | - Antonio G Zippo
- Institute of Neuroscience, Consiglio Nazionale delle Ricerche, Milan, Italy
| | | | - Luca Masucci
- Institute of Microbiology, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giovanni Cammarota
- Internal Medicine and Gastroenterology Unit, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Gianluca Ianiro
- Internal Medicine and Gastroenterology Unit, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Pirjo Spuul
- Department of Chemistry and Biotechnology, Division of Gene Technology, Tallinn University of Technology, Tallinn, 12618, Estonia
| | - Michael Schroeder
- Biotechnology Center (BIOTEC), Center for Molecular and Cellular Bioengineering (CMCB), Technische Universität Dresden, Dresden, Germany
| | - Stephan W Grill
- Biotechnology Center (BIOTEC), Center for Molecular and Cellular Bioengineering (CMCB), Technische Universität Dresden, Dresden, Germany
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Bryony N Parsons
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - D Mark Pritchard
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
- Department of Gastroenterology, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - Brunella Posteraro
- Institute of Microbiology, Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - Giovanni Gasbarrini
- Internal Medicine and Gastroenterology Unit, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Antonio Gasbarrini
- Internal Medicine and Gastroenterology Unit, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Carlo Vittorio Cannistraci
- Biomedical Cybernetics Group, Biotechnology Center (BIOTEC), Center for Molecular and Cellular Bioengineering (CMCB), Center for Systems Biology Dresden (CSBD), Cluster of Excellence Physics of Life (PoL), Department of Physics, Technische Universität Dresden, Dresden, Germany.
- Center for Complex Network Intelligence (CCNI) at Tsinghua Laboratory of Brain and Intelligence (THBI), Department of Biomedical Engineering, Tsinghua University, Beijing, China.
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9
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Mendes FR, Bruniera FR, Schmidt J, Cury AP, Rizeck C, Higashino H, Oliveira FN, Rossi F, Rocha V, Costa SF. Capnocytophaga sputigena bloodstream infection in hematopoietic stem cell transplantations: two cases report and review of the literature. Rev Inst Med Trop Sao Paulo 2020; 62:e48. [PMID: 32667390 PMCID: PMC7359719 DOI: 10.1590/s1678-9946202062048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 06/24/2020] [Indexed: 12/03/2022] Open
Abstract
Capnocytophaga is a group of facultative anaerobic gram-negative bacteria present in the oral cavity of humans, dogs and cats, as part of their normal oral flora. Here, we described two cases of bloodstream infections (BSI) caused by Capnocytophaga in neutropenic autologous hematopoietic stem cell transplantation (auto-HSCT) patients with mucositis (Grade I and Grade III) identified by Maldi-Tof. They were successfully treated with β-lactam (meropenem and piperacillin-tazobactam). The species C. sputigena was confirmed by 16S rRNA gene sequencing in one patient. The review of literature showed that C. ochraceae was the most frequent species causing BSI in auto-HSCT patients and that the patients usually presented mucositis and were neutropenic at the onset of the infection.
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Affiliation(s)
- Fernanda Rodrigues Mendes
- Unidade de Transplante de Medula Óssea, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Felipe Ribeiro Bruniera
- Unidade de Transplante de Medula Óssea, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Jayir Schmidt
- Unidade de Transplante de Medula Óssea, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Ana Paula Cury
- Laboratório de Microbiologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Camila Rizeck
- Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Hermes Higashino
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Fernando Nivaldo Oliveira
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Flavia Rossi
- Laboratório de Microbiologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Vanderson Rocha
- Unidade de Transplante de Medula Óssea, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Silvia Figueiredo Costa
- Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, São Paulo, Brazil.,Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
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Prado MM, Kovalski DJ, Torrez WB, Bueno-Silva B, Feres M, de Almeida J, Porto LM. Development of a multispecies periodontal biofilm model within a stirred bioreactor. BIOFOULING 2020; 36:725-735. [PMID: 32781835 DOI: 10.1080/08927014.2020.1805600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/18/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
The objective of this work was to develop a subgingival biofilm model using a stirred bioreactor. Discs of bovine teeth were adapted to a stirred bioreactor filled with a culture medium containing bacterial species associated with periodontal health or disease. After anaerobic incubation, the biofilms growing on the substratum surfaces were collected and analyzed. The mean number of Colony-forming Units (CFUs) varied, but with no difference between 3 and 7 days of biofilm formation (p > 0.05). Scanning Electron Microscopy (SEM) analysis showed a uniform biofilm layer covering the cement layer of the root surface containing bacteria with diverse morphology. In checkerboard DNA-DNA hybridization, bacterial species were identified in both biofilms. In conclusion, a subgingival biofilm model was developed using a stirred bioreactor, allowing the in vitro reproduction of complex microbial communities. This is an advanced model that may be useful to mimic complex clinical periodontal biofilms.
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Affiliation(s)
- Maick Meneguzzo Prado
- LiEB - Integrated Laboratory of Biological Engineering, Chemical and Food Engineering Department, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Davi J Kovalski
- LiEB - Integrated Laboratory of Biological Engineering, Chemical and Food Engineering Department, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | | | - Bruno Bueno-Silva
- Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Magda Feres
- Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Josiane de Almeida
- LiEB - Integrated Laboratory of Biological Engineering, Chemical and Food Engineering Department, Federal University of Santa Catarina, Florianópolis, SC, Brazil
- Faculty of Dentistry, Department of Endodontics, University of Southern Santa Catarina, Palhoça, SC, Brazil
| | - Luismar M Porto
- LiEB - Integrated Laboratory of Biological Engineering, Chemical and Food Engineering Department, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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11
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Özavci V, Erbas G, Parin U, Yüksel HT, Kirkan Ş. Molecular detection of feline and canine periodontal pathogens. Vet Anim Sci 2019; 8:100069. [PMID: 32734086 PMCID: PMC7386636 DOI: 10.1016/j.vas.2019.100069] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/05/2019] [Accepted: 08/08/2019] [Indexed: 01/14/2023] Open
Abstract
It is concluded that the feline oral flora is highly diverse than canine oral flora. Porphyromonas gingivalis, Prevotella nigrescens and Porphyromonas gulae were the dominant species in cats and dogs. T. forsythia, C. ochracea, and C. sputigena in cats and T. forsythia, C. ochracea, C. sputigena T. denticola and, E. corrodens, in dogs showed that the prevalence was lower than 10%. E. corrodens in cats and, P. intermedia, A. actinomycetemcomitans, and C. rectus in dogs were also isolated from the swab samples with less than 30% percentage. A balanced diet for cats and dogs should be provided to reduce the formation of residues in the oral flora. Daily rinsing with antiseptic solutions may also be helpful against the development of periodontal pathogens.
Periodontal disease is the most common infectious disease of cats and dogs which are strongly associated with periodontal pathogens. The primary etiologic factor in the formation of periodontal disease is microbial dental plaque accumulation on teeth. In our research, we aimed to investigate the presence of periodontal disease-related bacterial species in dental plaques of cats and dogs. Specimens collected from 50 cats and 51 dogs with periodontal disease examined in terms of periodontal pathogens by polymerase chain reaction (PCR) using primers directed to 16S rRNA and tdpA genes. Our findings indicate the presence of periodontal disease-related pathogens, especially Porphyromonas gingivalis (cats 96%, dogs 88%), Prevotella nigrescens (cats 90%, dogs 57%) and, Porphyromonas gulae (cats 70%, dogs 39%). In addition, the prevalence of Tannerella forthysia (cats 2%, dogs 4%) well-known pathogen in cats and dogs were isolated with an extremely low percentage. Furthermore, our results suggest that the feline oral cavity microbiota has considerably more diversity than dogs. Consequently, daily oral hygiene practices may become essential for controlling the pathogenic bacteria which have clinical importance and in preventing the propagation of microorganisms in the oral cavity of cats and dogs.
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Affiliation(s)
- Volkan Özavci
- Department of Microbiology, Faculty of Veterinary Medicine, Yozgat Bozok University, Yozgat, Turkey
- Corresponding author.
| | - Göksel Erbas
- Department of Microbiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Uğur Parin
- Department of Microbiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Hafize Tuğba Yüksel
- Department of Microbiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Şükrü Kirkan
- Department of Microbiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin, Turkey
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Rúa Gonzálvez L, Junquera Gutiérrez LM, Donate Pérez Del Molino P, González Soto J, Cobo Díaz JL, de Vicente Rodríguez JC. Keratocyst Capnocytophaga superinfection. Gerodontology 2018; 36:85-87. [PMID: 30216521 DOI: 10.1111/ger.12371] [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: 01/30/2018] [Revised: 07/13/2018] [Accepted: 08/03/2018] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Capnocytophaga spp are Gram-negative bacteria that cause severe infections in immunosuppressed patients. This situation is extremely rare in immunocompetent patients. CASE REPORT This clinical report describes the unusual infection of an immunocompetent patient with Capnocytophaga spp. The imaging studies showed the existence of a cyst in the left jawbone. After treatment and a microbiological study of the content, it was found to be an outbreak of septicaemia. DISCUSSION Capnocytophaga spp, commensal bacteria of the oral cavity, can lead to serious illness and that is why an empirical treatment is needed until a diagnostic confirmation can be obtained.
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Affiliation(s)
- Laura Rúa Gonzálvez
- Department of Oral and Maxillofacial Surgery, Central University Hospital of Asturias, Oviedo, Spain
| | | | | | - Jesús González Soto
- Department of Oral and Maxillofacial Surgery, Central University Hospital of Asturias, Oviedo, Spain
| | - Juan Luis Cobo Díaz
- Department of Oral and Maxillofacial Surgery, Central University Hospital of Asturias, Oviedo, Spain
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13
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Dong L, Yin J, Zhao J, Ma SR, Wang HR, Wang M, Chen W, Wei WQ. Microbial Similarity and Preference for Specific Sites in Healthy Oral Cavity and Esophagus. Front Microbiol 2018; 9:1603. [PMID: 30065718 PMCID: PMC6056649 DOI: 10.3389/fmicb.2018.01603] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/27/2018] [Indexed: 12/11/2022] Open
Abstract
Human microbial communities are highly complex ecosystems, but it remains unclear if microbial compositions have any similarity in distinct sites of the oral cavity and esophagus in particular. Clinical samples were collected from three niches (saliva, tongue dorsum and supragingival plaque) of the oral cavity and three segments (upper, middle, and lower) of the esophagus in 27 healthy individuals. Bacterial V3-V4 region of 16S rRNA gene in these samples was amplified and sequenced on Illumina sequencing platform, followed by data analysis using QIIME and LEfSe softwares. Highly diverse bacterial flora with 365 genera belonging to 29 phyla resided in the oral cavity and 594 genera belonging to 29 phyla in the esophagus. The phyla Proteobacteria, Firmicutes, Bacteroidetes, Actinobacteria, Fusobacteria, and TM7 were most abundant in both the oral cavity and the esophagus, but the phyla Actinobacteria and Bacteroidetes were preferable in the oral cavity and Firmicutes in the esophagus. The genera Streptococcus, Neisseria, Prevotella, Actinobacillus, and Veillonella were most abundant in both oral cavity and esophagus, but Neisseria was preferable in the oral cavity and Streptococcus in the esophagus. Different niche-specific bacterial signatures were found in the oral cavity, e.g., the class Flavobacteria in the supragingival plaque, class Bacteroides in the saliva and the class Clostridia in the tongue dorsum. By contrast, no site specific bacteria for three different segments of esophagus were found. However, high variability of microbial compositions between individuals was observed. In conclusion, this study confirmed microbial diversity at different taxonomic levels in healthy oral cavity and esophagus, and identified the site-preferable bacterial signatures in six niches of the upper digestive tract. These findings provide a critical baseline for future studies interpreting microbiome-related diseases.
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Affiliation(s)
- Li Dong
- Department of Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Institutes of Biomedical Sciences, Shanxi University, Taiyuan, China
| | - Jian Yin
- Department of Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jing Zhao
- Department of Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shan-Rui Ma
- Department of Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hai-Rui Wang
- Department of Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Meng Wang
- Department of Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wen Chen
- Department of Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wen-Qiang Wei
- Department of Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Ledbetter EC, Franklin-Guild RJ, Edelmann ML. Capnocytophaga keratitis in dogs: clinical, histopathologic, and microbiologic features of seven cases. Vet Ophthalmol 2018; 21:638-645. [PMID: 29360230 DOI: 10.1111/vop.12549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To describe the clinical, microbiologic, and histopathologic features of Capnocytophaga keratitis in dogs. ANIMALS STUDIED Seven dogs with naturally acquired Capnocytophaga keratitis. PROCEDURES Medical records of dogs with a clinical diagnosis of keratitis and corneal cultures positive for Capnocytophaga spp. were reviewed. Dog signalment, medical history, clinical findings, and diagnostic assay results were recorded. RESULTS Breeds included Boston terrier (n = 3 dogs), Rat terrier (n = 2), and single cases of mixed breed and Pug. All dogs examined had expansive corneal ulceration involving the majority of the corneal surface. Marked corneal infiltrates, keratomalacia, and hypopyon were present. Progression of corneal disease was rapid with extensive dissolution of the corneal stroma. Corneal lesions progressed to catastrophic perforations within 24 h of the initial examination in three dogs, requiring enucleation. One globe was enucleated after failure to resolve with long-term medical therapy. Globes and vision were retained in three dogs following aggressive medical therapy (two dogs) or 360° conjunctival graft surgery (one dog). Capnocytophaga cynodegmi, Capnocytophaga canimorsus, or unspeciated Capnocytophaga spp. were cultured from corneal samples of all dogs. Long, thin, gram-negative rods were present during cytological evaluation of the cornea in some dogs. Histopathologic evaluation of enucleated globes revealed severe and diffuse neutrophilic and collagenolytic keratitis. CONCLUSIONS Capnocytophaga keratitis is a severe, rapidly progressive corneal infection in dogs that is associated with diffuse corneal involvement, extensive keratomalacia, and a relatively poor prognosis. Clinical features of canine Capnocytophaga keratitis are similar to human cases of this infection.
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Affiliation(s)
- Eric C Ledbetter
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | - Rebecca J Franklin-Guild
- Animal Health Diagnostic Center, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | - Michele L Edelmann
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
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Capnocytophaga endodontalis sp. nov., Isolated from a Human Refractory Periapical Abscess. Curr Microbiol 2017; 75:420-425. [DOI: 10.1007/s00284-017-1397-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 11/13/2017] [Indexed: 11/26/2022]
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Involvement of the Type IX Secretion System in Capnocytophaga ochracea Gliding Motility and Biofilm Formation. Appl Environ Microbiol 2016; 82:1756-1766. [PMID: 26729712 DOI: 10.1128/aem.03452-15] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 12/30/2015] [Indexed: 11/20/2022] Open
Abstract
Capnocytophaga ochracea is a Gram-negative, rod-shaped bacterium that demonstrates gliding motility when cultured on solid agar surfaces. C. ochracea possesses the ability to form biofilms; however, factors involved in biofilm formation by this bacterium are unclear. A type IX secretion system (T9SS) in Flavobacterium johnsoniae was shown to be involved in the transport of proteins (e.g., several adhesins) to the cell surface. Genes orthologous to those encoding T9SS proteins in F. johnsoniae have been identified in the genome of C. ochracea; therefore, the T9SS may be involved in biofilm formation by C. ochracea. Here we constructed three ortholog-deficient C. ochracea mutants lacking sprB (which encodes a gliding motility adhesin) or gldK or sprT (which encode T9SS proteins in F. johnsoniae). Gliding motility was lost in each mutant, suggesting that, in C. ochracea, the proteins encoded by sprB, gldK, and sprT are necessary for gliding motility, and SprB is transported to the cell surface by the T9SS. For the ΔgldK, ΔsprT, and ΔsprB strains, the amounts of crystal violet-associated biofilm, relative to wild-type values, were 49%, 34%, and 65%, respectively, at 48 h. Confocal laser scanning and scanning electron microscopy revealed that the biofilms formed by wild-type C. ochracea were denser and bacterial cells were closer together than in those formed by the mutant strains. Together, these results indicate that proteins exported by the T9SS are key elements of the gliding motility and biofilm formation of C. ochracea.
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Syndromic Diagnostic Approaches to Bone and Joint infections. Mol Microbiol 2016. [DOI: 10.1128/9781555819071.ch29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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