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Valadbeigi H, Khoshnood S, Negahdari B, Maleki A, Mohammadinejat M, Haddadi MH. Mixed oral biofilms are controlled by the interspecies interactions of Fusobacterium nucleatum. Oral Dis 2024; 30:3582-3590. [PMID: 38009960 DOI: 10.1111/odi.14822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/10/2023] [Accepted: 10/20/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Fusobacterium nucleatum (F. nucleatum) is an integral component of supra- and subgingival biofilms, especially more prevalent in subgingival areas during both periodontal health and disease. AIMS In this review, we explore the physical, metabolic, and genetic interactions that influence the role of F. nucleatum in the formation of mixed oral biofilms. The role of F. nucleatum in antibiotic resistance in oral biofilms was discussed and some therapeutic strategies were proposed. METHODS PubMed, Scopus, Google Scholar, and the Web of Science were extensively searched for English-language reports. RESULTS F. nucleatum-derived proteins such as RadD, Fap2, FomA, and CmpA are involved in direct interactions contributing to biofilm formation, while autoinducer-2 and putrescine are involved in metabolic interactions. Both groups are essential for the formation and persistence of oral biofilms. This study highlights the clinical relevance of targeted interactions of F. nucleatum in supra- and subgingival oral biofilms. CONCLUSIONS By focusing on these interactions, researchers and clinicians can develop more effective strategies to prevent biofilm-related disease and reduce the spread of antibiotic resistance. Further research in this area is warranted to explore the potential therapeutic interventions that can be derived from understanding the interactions of F. nucleatum in oral biofilm dynamics.
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Affiliation(s)
- Hassan Valadbeigi
- Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Saeed Khoshnood
- Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Babak Negahdari
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Maleki
- Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Medya Mohammadinejat
- Department of Medicinal Chemistry, Faculty of Chemistry, North-Tehran Branch, Islamic Azad University, Tehran, Iran
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Zhang L, Leng XX, Qi J, Wang N, Han JX, Tao ZH, Zhuang ZY, Ren Y, Xie YL, Jiang SS, Li JL, Chen H, Zhou CB, Cui Y, Chen X, Wang Z, Zhang ZZ, Hong J, Chen HY, Jiang W, Chen YX, Zhao X, Yu J, Fang JY. The adhesin RadD enhances Fusobacterium nucleatum tumour colonization and colorectal carcinogenesis. Nat Microbiol 2024; 9:2292-2307. [PMID: 39169124 DOI: 10.1038/s41564-024-01784-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 07/15/2024] [Indexed: 08/23/2024]
Abstract
Fusobacterium nucleatum can bind to host cells and potentiate intestinal tumorigenesis. Here we used a genome-wide screen to identify an adhesin, RadD, which facilitates the attachment of F. nucleatum to colorectal cancer (CRC) cells in vitro. RadD directly binds to CD147, a receptor overexpressed on CRC cell surfaces, which initiated a PI3K-AKT-NF-κB-MMP9 cascade, subsequently enhancing tumorigenesis in mice. Clinical specimen analysis showed that elevated radD gene levels in CRC tissues correlated positively with activated oncogenic signalling and poor patient outcomes. Finally, blockade of the interaction between RadD and CD147 in mice effectively impaired F. nucleatum attachment and attenuated F. nucleatum-induced oncogenic response. Together, our study provides insights into an oncogenic mechanism driven by F. nucleatum RadD and suggests that the RadD-CD147 interaction could be a potential therapeutic target for CRC.
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Affiliation(s)
- Lu Zhang
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-Xu Leng
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jianxun Qi
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Ni Wang
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ji-Xuan Han
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhi-Hang Tao
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zi-Yan Zhuang
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yimeng Ren
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yi-Le Xie
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shan-Shan Jiang
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jia-Lu Li
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Huimin Chen
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Cheng-Bei Zhou
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yun Cui
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoyu Chen
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zheng Wang
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zi-Zhen Zhang
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jie Hong
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hao-Yan Chen
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Weihong Jiang
- CAS-Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Ying-Xuan Chen
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xin Zhao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Jun Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jing-Yuan Fang
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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3
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Sahin S, Gundogdu A, Nalbantoglu U, Karaca Z, Hacioglu A, Urhan ME, Unluhizarci K, Hora M, Tanrıverdi ES, Durcan E, Elbüken G, Dokmetas HS, Zuhur SS, Tanriover N, Türe U, Kelestimur F, Kadioglu P. The comprehensive evaluation of oral and fecal microbiota in patients with acromegaly. Pituitary 2024:10.1007/s11102-024-01444-6. [PMID: 39158810 DOI: 10.1007/s11102-024-01444-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/05/2024] [Indexed: 08/20/2024]
Abstract
PURPOSE The alteration of the microbiota in the mouth and gut could potentially play a role in the pathogenesis of various diseases, and conversely, these diseases may have an influence on the composition of the gut microbiota. Acromegaly disease can potentially affect physiological processes in the mouth and gut. The present study was designed to investigate the relationship between acromegaly and the oral and gut microbiota, as data on this topic are scarce. METHODS This was a multicenter, cross-sectional study. Our study included individuals diagnosed with acromegaly (who were treated and followed up, and also as an another group of patients with newly diagnosed acromegaly) and healthy participants. All three groups were assessed and compared based on age, sex, serum IGF-1, body mass index BMI as well as their stool and oral microbiota We collected demographic information from the patients, collected fecal and oral samples, performed DNA isolation followed by 16 S rRNA sequencing, and then performed bioinformatic analysis. We also analyzed the oral and fecal samples with respect to medical and surgical treatment and disease control status, specific treatments received for acromegaly, presence of comorbidities, hypopituitarism status, presence of intestinal polyps. RESULTS One hundred and three patients with acromegaly, 15 newly diagnosed patients with acromegaly without comorbidities and 34 healthy controls were included in the study. The Firmicutes/Bacteroidetes ratio was significantly lower in patients with acromegaly who received treatment (medical and/or surgical) than in healthy controls. In addition, a significant difference was found in the fecal and oral microbiota of patients with acromegaly with disease control compared to healthy controls. Furthermore, a significant difference was found in the fecal and oral microbiota of patients with acromegaly without disease control. Nevertheless, it was not possible to establish a clear relationship between disease control status, the presence of intestinal polyps, the presence of type 2 diabetes and the composition of the oral and gut microbiota in acromegalic patients who had received different forms of treatment. CONCLUSION Patients with acromegaly show distinct gut microbiota profiles, and it is evident that factors beyond the GH/IGF-1 axis play a role in shaping the gut microbiota of individuals with acromegaly.
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Affiliation(s)
- Serdar Sahin
- Department of Endocrinology and Metabolic Diseases, Cerrahpasa School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Aycan Gundogdu
- Department of Microbiology and Clinical Microbiology, School of Medicine, Erciyes University, Kayseri, Turkey
- Genome and Stem Cell Center (GenKok), Erciyes University, Kayseri, Turkey
| | - Ufuk Nalbantoglu
- Genome and Stem Cell Center (GenKok), Erciyes University, Kayseri, Turkey
- Department of Computer Engineering, Erciyes University, Kayseri, Turkey
| | - Zuleyha Karaca
- Department of Endocrinology and Metabolic Diseases, School of Medicine, Erciyes University, Kayseri, Turkey
| | - Aysa Hacioglu
- Department of Endocrinology and Metabolic Diseases, School of Medicine, Erciyes University, Kayseri, Turkey
| | - Muhammed Emre Urhan
- Department of Endocrinology and Metabolic Diseases, School of Medicine, Erciyes University, Kayseri, Turkey
| | - Kursad Unluhizarci
- Department of Endocrinology and Metabolic Diseases, School of Medicine, Erciyes University, Kayseri, Turkey
| | - Mehmet Hora
- Genome and Stem Cell Center (GenKok), Erciyes University, Kayseri, Turkey
| | - Elif Seren Tanrıverdi
- Medical Microbiology Laboratory, Malatya Training and Research Hospital, Malatya, Turkey
| | - Emre Durcan
- Department of Endocrinology and Metabolic Diseases, Cerrahpasa School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Gülsah Elbüken
- Department of Endocrinology and Metabolic Diseases, School of Medicine, Namik Kemal University, Tekirdag, Turkey
| | - Hatice Sebile Dokmetas
- Department of Endocrinology and Metabolic Diseases, University of Health Sciences, Cemil Tascıoğlu City Hospital, Istanbul, Turkey
| | - Sayid Shafi Zuhur
- Department of Endocrinology and Metabolic Diseases, School of Medicine, Namik Kemal University, Tekirdag, Turkey
| | - Necmettin Tanriover
- Department of Neurosurgery, Cerrahpasa School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ugur Türe
- Department of Neurosurgery, School of Medicine, Yeditepe University, Istanbul, Turkey
| | - Fahrettin Kelestimur
- Department of Endocrinology and Metabolic Diseases, School of Medicine, Yeditepe University, Istanbul, Turkey
| | - Pinar Kadioglu
- Department of Endocrinology and Metabolic Diseases, Cerrahpasa School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey.
- Cerrahpasa Medical Faculty, Department of Internal Medicine, Division of Endocrinology-Metabolism and Diabetes, Istanbul University - Cerrahpasa, Kocamustafapasa Street No:53, Fatih, Istanbul, 34098, Turkey.
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Tsai YH, Milbrandt NB, Prado RC, Ponce NB, Alam MM, Qiu SR, Yu X, Burda C, Kim TKJ, Samia ACS. Effect of Nitrogen Doping on the Photocatalytic Properties and Antibiofilm Efficacy of Reduced TiO 2 Nanoparticles. ACS APPLIED BIO MATERIALS 2024; 7:4580-4592. [PMID: 38958462 DOI: 10.1021/acsabm.4c00459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Nanomaterial-mediated antibacterial photodynamic therapy (aPDT) emerges as a promising treatment against antibiotic-resistant bacterial biofilms. Specifically, titanium dioxide nanoparticles (TiO2 NPs) are being investigated as photosensitizers in aPDT to address biofilm related diseases. To enhance their photocatalytic performance in the visible spectral range for biomedical applications, various strategies have been adopted, including reduction of TiO2 NPs. However, despite improvements in visible-light photoactivity, reduced TiO2 NPs have yet to reach their expected performance primarily due to the instability of oxygen vacancies and their tendency to reoxidize easily. To address this, we present a two-step approach to fabricate highly visible-light active and stable TiO2 NP photocatalysts, involving nitrogen doping followed by a magnesium-assisted reductive annealing process. X-ray photoelectron spectroscopy analysis of the synthesized reduced nitrogen-doped TiO2 NPs (H:Mg-N-TiO2 NPs) reveals that the presence of nitrogen stabilizes oxygen vacancies and reduced Ti species, leading to increased production of reactive oxygen species under visible-light excitation. The improved aPDT efficiency translates to a 3-fold enhancement in the antibiofilm activity of nitrogen-doped compared to undoped reduced TiO2 NPs against both Gram-positive (Streptococcus mutans) and Gram-negative (Porphyromonas gingivalis, Fusobacterium nucleatum) oral pathogens. These results underscore the potential of H:Mg-N-TiO2 NPs in aPDT for combating bacterial biofilms effectively.
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Affiliation(s)
- Yu Hsin Tsai
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Nathalie B Milbrandt
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Ross Clark Prado
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Nicole Beatrice Ponce
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Md Masud Alam
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - S Roger Qiu
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratyory, Livermore, California 94551, United States
| | - Xiong Yu
- Department of Civil and Environmental Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Clemens Burda
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Tae Kyong John Kim
- Swagelok Center for Surface Analysis of Materials, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Anna Cristina S Samia
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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Montoya C, Baraniya D, Chen T, Al-Hebshi NN, Orrego S. The effect of dental material type and masticatory forces on periodontitis-derived subgingival microbiomes. Biofilm 2024; 7:100199. [PMID: 38800100 PMCID: PMC11127099 DOI: 10.1016/j.bioflm.2024.100199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 04/19/2024] [Accepted: 05/04/2024] [Indexed: 05/29/2024] Open
Abstract
Restorative dental materials can frequently extend below the gingival margin, serving as a potential haven for microbial colonization, and altering the local oral microbiome to ignite infection. However, the contribution of dental materials on driving changes of the composition of the subgingival microbiome is under-investigated. This study evaluated the microbiome-modulating properties of three biomaterials, namely resin dental composites (COM), antimicrobial piezoelectric composites (BTO), and hydroxyapatite (HA), using an optimized in vitro subgingival microbiome model derived from patients with periodontal disease. Dental materials were subjected to static or cyclic loading (mastication forces) during biofilm growth. Microbiome composition was assessed by 16S rRNA gene sequencing. Dysbiosis was measured in terms of subgingival microbial dysbiosis index (SMDI). Biomaterials subjected to cyclic masticatory loads were associated with enhanced biofilm viability except on the antibacterial composite. Biomaterials held static were associated with increased biofilm biomass, especially on HA surfaces. Overall, the microbiome richness (Chao index) was similar for all the biomaterials and loading conditions. However, the microbiome diversity (Shannon index) for the HA beams was significantly different than both composites. In addition, beta diversity analysis revealed significant differences between composites and HA biomaterials, and between both loading conditions (static and cyclic). Under static conditions, microbiomes formed over HA surfaces resulted in increased dysbiosis compared to composites through the enrichment of periopathogens, including Porphyromonas gingivalis, Porphyromonas endodontalis, and Fretibacterium spp., and depletion of commensals such as Granulicatella and Streptococcus spp. Interestingly, cyclic loading reversed the dysbiosis of microbiomes formed over HA (depletion of periopathogenes) but increased the dysbiosis of microbiomes formed over composites (enrichment of Porphyromonas gingivalis and Fusobacterim nucleatum). Comparison of species formed on both composites (control and antibacterial) showed some differences. Commercial composites enriched Selenomonas spp. and depleted Campylobacter concisus. Piezoelectric composites effectively controlled the microbiome viability without significantly impacting the species abundance. Findings of this work open new understandings of the effects of different biomaterials on the modulation of oral biofilms and the relationship with oral subgingival infections.
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Affiliation(s)
- Carolina Montoya
- Smart Biomaterials Laboratory, Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
| | - Divyashri Baraniya
- Oral Microbiome Research Laboratory, Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
| | - Tsute Chen
- Department of Microbiology, Forsyth Institute, Cambridge, MA, USA
| | - Nezar Noor Al-Hebshi
- Oral Microbiome Research Laboratory, Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
| | - Santiago Orrego
- Smart Biomaterials Laboratory, Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, USA
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, USA
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Elghannam MT, Hassanien MH, Ameen YA, Turky EA, ELattar GM, ELRay AA, ELTalkawy MD. Helicobacter pylori and oral-gut microbiome: clinical implications. Infection 2024; 52:289-300. [PMID: 37917397 PMCID: PMC10954935 DOI: 10.1007/s15010-023-02115-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/09/2023] [Indexed: 11/04/2023]
Abstract
More than half of the world's population are colonized with H. pylori; however, the prevalence varies geographically with the highest incidence in Africa. H. pylori is probably a commensal organism that has been associated with the development of gastritis, ulcers, and gastric cancer. H. pylori alone is most probably not enough for the development of gastric carcinoma, but evidence for its association with the disease is high and has, therefore, been classified by the International Agency for Research on Cancer as a Class 1 carcinogen. Bacteroidetes and Fusobacteria positively coexisted during H. pylori infection along the oral-gut axis. The eradication therapy required to treat H. pylori infection can also have detrimental consequences for the gut microbiota, leading to a decreased alpha diversity. Therefore, therapy regimens integrated with probiotics may abolish the negative effects of antibiotic therapy on the gut microbiota. These eradication therapies combined with probiotics have also higher rates of eradication, when compared to standard treatments, and are associated with reduced side effects, improving the patient's compliance. The eradication therapy not only affects gut microbiome but also affects the oral microbiome with robust predominance of harmful bacteria. However, there have been reports of a protective role of H. pylori in Barrett's esophagus, esophageal adenocarcinoma, eosinophilic esophagitis, IBD, asthma, and even multiple sclerosis. Therefore, eradication therapy should be carefully considered, and test to treat policy should be tailored to specific communities especially in highly endemic areas. Supplementation of probiotics, prebiotics, herbals, and microbial metabolites to reduce the negative effects of eradication therapy should be considered. After failure of many eradication attempts, the benefits of H. pylori eradication should be carefully balanced against the risk of adverse effects especially in the elderly, persons with frailty, and intolerance to antibiotics.
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Affiliation(s)
- Maged T Elghannam
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt.
| | - Moataz H Hassanien
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Yosry A Ameen
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Emad A Turky
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Gamal M ELattar
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Ahmed A ELRay
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Mohammed D ELTalkawy
- Hepatogastroenterology Department, Theodor Bilharz Research Institute, Giza, Egypt
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7
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Sasaki K, Takeshima Y, Fujino A, Yamashita J, Kimoto A, Sasaki D, Kondo A, Akashi M, Okumura R. Construction of a versatile in vitro cultivation screening platform using human oral microbiota. ENVIRONMENTAL MICROBIOLOGY REPORTS 2024; 16:e13243. [PMID: 38425145 PMCID: PMC10904971 DOI: 10.1111/1758-2229.13243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 02/08/2024] [Indexed: 03/02/2024]
Abstract
We developed a simulation model of human oral microbiota using Bio Palette oral medium (BPOM) containing 0.02% glucose and lower bacterial nitrogen sources, derived from saliva and dental plaque. By decreasing the concentration of Gifu anaerobic medium (GAM) from 30 to 10 g L-1 , we observed increased ratios of target pathogenic genera, Porphyromonas and Fusobacterium from 0.5% and 1.7% to 1.2% and 3.5%, respectively, in the biofilm on hydroxyapatite (HA) discs. BPOM exhibited the higher ratios of Porphyromonas and Fusobacterium, and amplicon sequence variant number on HA, compared with GAM, modified GAM and basal medium mucin. Mixing glycerol stocks of BPOM culture solutions from four human subjects resulted in comparable ratios of these bacteria to the original saliva. In this simulation model, sitafloxacin showed higher inhibitory effects on P. gingivalis than minocycline hydrochloride at a low dosage of 0.1 μg mL-1 . Probiotics such as Streptococcus salivarius and Limosilactobacillus fermentum also showed significant decreases in Porphyromonas and Fusobacterium ratios on HA, respectively. Overall, the study suggests that BPOM with low carbon and nutrients could be a versatile platform for assessing the efficacy of antibiotics and live biotherapeutics in treating oral diseases caused by Porphyromonas and Fusobacterium.
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Affiliation(s)
| | | | | | - Junya Yamashita
- Department of Oral and Maxillofacial SurgeryKobe University Graduate School of MedicineKobeHyogoJapan
| | - Akira Kimoto
- Department of Oral and Maxillofacial SurgeryKobe University Graduate School of MedicineKobeHyogoJapan
| | - Daisuke Sasaki
- Graduate School of Science, Technology and Innovation, Kobe UniversityKobeHyogoJapan
| | - Akihiko Kondo
- Graduate School of Science, Technology and Innovation, Kobe UniversityKobeHyogoJapan
| | - Masaya Akashi
- Department of Oral and Maxillofacial SurgeryKobe University Graduate School of MedicineKobeHyogoJapan
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8
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Yáñez L, Soto C, Tapia H, Pacheco M, Tapia J, Osses G, Salinas D, Rojas-Celis V, Hoare A, Quest AFG, Díaz-Elizondo J, Pérez-Donoso JM, Bravo D. Co-Culture of P. gingivalis and F. nucleatum Synergistically Elevates IL-6 Expression via TLR4 Signaling in Oral Keratinocytes. Int J Mol Sci 2024; 25:3611. [PMID: 38612423 PMCID: PMC11011619 DOI: 10.3390/ijms25073611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/15/2024] [Accepted: 03/17/2024] [Indexed: 04/14/2024] Open
Abstract
Periodontitis, characterized by persistent inflammation in the periodontium, is intricately connected to systemic diseases, including oral cancer. Bacteria, such as Porphyromonas gingivalis and Fusobacterium nucleatum, play a pivotal role in periodontitis development because they contribute to dysbiosis and tissue destruction. Thus, comprehending the interplay between these bacteria and their impacts on inflammation holds significant relevance in clinical understanding and treatment advancement. In the present work, we explored, for the first time, their impacts on the expressions of pro-inflammatory mediators after infecting oral keratinocytes (OKs) with a co-culture of pre-incubated P. gingivalis and F. nucleatum. Our results show that the co-culture increases IL-1β, IL-8, and TNF-α expressions, synergistically augments IL-6, and translocates NF-kB to the cell nucleus. These changes in pro-inflammatory mediators-associated with chronic inflammation and cancer-correlate with an increase in cell migration following infection with the co-cultured bacteria or P. gingivalis alone. This effect depends on TLR4 because TLR4 knockdown notably impacts IL-6 expression and cell migration. Our study unveils, for the first time, crucial insights into the outcomes of their co-culture on virulence, unraveling the role of bacterial interactions in polymicrobial diseases and potential links to oral cancer.
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Affiliation(s)
- Lucas Yáñez
- Microbial Interactions Laboratory, Faculty of Dentistry, Universidad Andrés Bello, Santiago 8370133, Chile; (L.Y.); (C.S.); (H.T.); (M.P.); (J.T.); (G.O.); (J.D.-E.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
| | - Cristopher Soto
- Microbial Interactions Laboratory, Faculty of Dentistry, Universidad Andrés Bello, Santiago 8370133, Chile; (L.Y.); (C.S.); (H.T.); (M.P.); (J.T.); (G.O.); (J.D.-E.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
| | - Héctor Tapia
- Microbial Interactions Laboratory, Faculty of Dentistry, Universidad Andrés Bello, Santiago 8370133, Chile; (L.Y.); (C.S.); (H.T.); (M.P.); (J.T.); (G.O.); (J.D.-E.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
| | - Martín Pacheco
- Microbial Interactions Laboratory, Faculty of Dentistry, Universidad Andrés Bello, Santiago 8370133, Chile; (L.Y.); (C.S.); (H.T.); (M.P.); (J.T.); (G.O.); (J.D.-E.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
| | - Javiera Tapia
- Microbial Interactions Laboratory, Faculty of Dentistry, Universidad Andrés Bello, Santiago 8370133, Chile; (L.Y.); (C.S.); (H.T.); (M.P.); (J.T.); (G.O.); (J.D.-E.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
| | - Gabriela Osses
- Microbial Interactions Laboratory, Faculty of Dentistry, Universidad Andrés Bello, Santiago 8370133, Chile; (L.Y.); (C.S.); (H.T.); (M.P.); (J.T.); (G.O.); (J.D.-E.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
| | - Daniela Salinas
- Oral Microbiology and Immunology Laboratory, Department of Pathology and Oral Medicine, Faculty of Dentistry, Universidad de Chile, Santiago 8380492, Chile; (D.S.); (A.H.)
| | - Victoria Rojas-Celis
- Virology Laboratory, Department of Biology, Faculty of Sciences, Universidad de Chile, Santiago 7800003, Chile;
| | - Anilei Hoare
- Oral Microbiology and Immunology Laboratory, Department of Pathology and Oral Medicine, Faculty of Dentistry, Universidad de Chile, Santiago 8380492, Chile; (D.S.); (A.H.)
| | - Andrew F. G. Quest
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
- Cellular Communication Laboratory, Center for Studies on Exercise, Metabolism and Cancer (CEMC), Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile
| | - Jessica Díaz-Elizondo
- Microbial Interactions Laboratory, Faculty of Dentistry, Universidad Andrés Bello, Santiago 8370133, Chile; (L.Y.); (C.S.); (H.T.); (M.P.); (J.T.); (G.O.); (J.D.-E.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
| | - José Manuel Pérez-Donoso
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Faculty of Life Sciences, Universidad Andrés Bello, Santiago 8370186, Chile;
| | - Denisse Bravo
- Microbial Interactions Laboratory, Faculty of Dentistry, Universidad Andrés Bello, Santiago 8370133, Chile; (L.Y.); (C.S.); (H.T.); (M.P.); (J.T.); (G.O.); (J.D.-E.)
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
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9
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Xu J, Yu L, Ye S, Ye Z, Yang L, Xu X. Oral microbiota-host interaction: the chief culprit of alveolar bone resorption. Front Immunol 2024; 15:1254516. [PMID: 38455060 PMCID: PMC10918469 DOI: 10.3389/fimmu.2024.1254516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 02/02/2024] [Indexed: 03/09/2024] Open
Abstract
There exists a bidirectional relationship between oral health and general well-being, with an imbalance in oral symbiotic flora posing a threat to overall human health. Disruptions in the commensal flora can lead to oral diseases, while systemic illnesses can also impact the oral cavity, resulting in the development of oral diseases and disorders. Porphyromonas gingivalis and Fusobacterium nucleatum, known as pathogenic bacteria associated with periodontitis, play a crucial role in linking periodontitis to accompanying systemic diseases. In periodontal tissues, these bacteria, along with their virulence factors, can excessively activate the host immune system through local diffusion, lymphatic circulation, and blood transmission. This immune response disruption contributes to an imbalance in osteoimmune mechanisms, alveolar bone resorption, and potential systemic inflammation. To restore local homeostasis, a deeper understanding of microbiota-host interactions and the immune network phenotype in local tissues is imperative. Defining the immune network phenotype in periodontal tissues offers a promising avenue for investigating the complex characteristics of oral plaque biofilms and exploring the potential relationship between periodontitis and associated systemic diseases. This review aims to provide an overview of the mechanisms underlying Porphyromonas gingivalis- and Fusobacterium nucleatum-induced alveolar bone resorption, as well as the immunophenotypes observed in host periodontal tissues during pathological conditions.
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Affiliation(s)
- Jingyu Xu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Ling Yu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Surong Ye
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Zitong Ye
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Luyi Yang
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Xiaoxi Xu
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
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10
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El Tekle G, Andreeva N, Garrett WS. The Role of the Microbiome in the Etiopathogenesis of Colon Cancer. Annu Rev Physiol 2024; 86:453-478. [PMID: 38345904 DOI: 10.1146/annurev-physiol-042022-025619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Studies in preclinical models support that the gut microbiota play a critical role in the development and progression of colorectal cancer (CRC). Specific microbial species and their corresponding virulence factors or associated small molecules can contribute to CRC development and progression either via direct effects on the neoplastic transformation of epithelial cells or through interactions with the host immune system. Induction of DNA damage, activation of Wnt/β-catenin and NF-κB proinflammatory pathways, and alteration of the nutrient's availability and the metabolic activity of cancer cells are the main mechanisms by which the microbiota contribute to CRC. Within the tumor microenvironment, the gut microbiota alter the recruitment, activation, and function of various immune cells, such as T cells, macrophages, and dendritic cells. Additionally, the microbiota shape the function and composition of cancer-associated fibroblasts and extracellular matrix components, fashioning an immunosuppressive and pro-tumorigenic niche for CRC. Understanding the complex interplay between gut microbiota and tumorigenesis can provide therapeutic opportunities for the prevention and treatment of CRC.
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Affiliation(s)
- Geniver El Tekle
- Department of Immunology and Infectious Diseases and Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;
- The Harvard Chan Microbiome in Public Health Center, Boston, Massachusetts, USA
- Broad Institute of MIT and Harvard, Boston, Massachusetts, USA
| | - Natalia Andreeva
- Department of Immunology and Infectious Diseases and Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;
- The Harvard Chan Microbiome in Public Health Center, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
- David H. Koch Institute for Integrative Cancer Research at MIT, Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Wendy S Garrett
- Department of Immunology and Infectious Diseases and Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;
- The Harvard Chan Microbiome in Public Health Center, Boston, Massachusetts, USA
- Broad Institute of MIT and Harvard, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
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11
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Li L, Li M, Chen Y, Yu Z, Cheng P, Yu Z, Cheng W, Zhang W, Wang Z, Gao X, Sun H, Wang X. Function and therapeutic prospects of next-generation probiotic Akkermansia muciniphila in infectious diseases. Front Microbiol 2024; 15:1354447. [PMID: 38384263 PMCID: PMC10880487 DOI: 10.3389/fmicb.2024.1354447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/22/2024] [Indexed: 02/23/2024] Open
Abstract
Akkermansia muciniphila is a gram-negative bacterium that colonizes the human gut, making up 3-5% of the human microbiome. A. muciniphila is a promising next-generation probiotic with clinical application prospects. Emerging studies have reported various beneficial effects of A. muciniphila including anti-cancer, delaying aging, reducing inflammation, improving immune function, regulating nervous system function, whereas knowledge on its roles and mechanism in infectious disease is currently unclear. In this review, we summarized the basic characteristics, genome and phenotype diversity, the influence of A. muciniphila and its derived components on infectious diseases, such as sepsis, virus infection, enteric infection, periodontitis and foodborne pathogen induced infections. We also provided updates on mechanisms how A. muciniphila protects intestinal barrier integrity and modulate host immune response. In summary, we believe that A. muciniphila is a promising therapeutic probiotic that may be applied for the treatment of a variety of infectious diseases.
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Affiliation(s)
- Lifeng Li
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Mingchao Li
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Yihua Chen
- Electrical Biology Room, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Zengyuan Yu
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Ping Cheng
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Zhidan Yu
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Weyland Cheng
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Wancun Zhang
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Zhaobao Wang
- Energy-rich Compounds Production by Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Xueyan Gao
- Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Huiqing Sun
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Xiaolei Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
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12
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Abstract
Cancer cells originate from a series of acquired genetic mutations that can drive their uncontrolled cell proliferation and immune evasion. Environmental factors, including the microorganisms that colonize the human body, can shift the metabolism, growth pattern and function of neoplastic cells and shape the tumour microenvironment. Dysbiosis of the gut microbiome is now recognized as a hallmark of cancer by the scientific community. However, only a few microorganisms have been identified that directly initiate tumorigenesis or skew the immune system to generate a tumour-permissive milieu. Over the past two decades, research on the human microbiome and its functionalities within and across individuals has revealed microbiota-focused strategies for health and disease. Here, we review the evolving understanding of the mechanisms by which the microbiota acts in cancer initiation, promotion and progression. We explore the roles of bacteria in gastrointestinal tract malignancies and cancers of the lung, breast and prostate. Finally, we discuss the promises and limitations of targeting or harnessing bacteria in personalized cancer prevention, diagnostics and treatment.
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Affiliation(s)
- Geniver El Tekle
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- The Harvard T. H. Chan Microbiome in Public Health Center, Boston, MA, USA
- The Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Wendy S Garrett
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
- The Harvard T. H. Chan Microbiome in Public Health Center, Boston, MA, USA.
- The Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Department of Medicine, Harvard Medical School, Boston, MA, USA.
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.
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13
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Song B, Xian W, Sun Y, Gou L, Guo Q, Zhou X, Ren B, Cheng L. Akkermansia muciniphila inhibited the periodontitis caused by Fusobacterium nucleatum. NPJ Biofilms Microbiomes 2023; 9:49. [PMID: 37460552 DOI: 10.1038/s41522-023-00417-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 07/04/2023] [Indexed: 07/20/2023] Open
Abstract
Periodontitis is the most important cause of tooth loss in adults and is closely related to various systemic diseases. Its etiologic factor is plaque biofilm, and the primary treatment modality is plaque control. Studies have confirmed that Fusobacterium nucleatum can cause periodontitis through its virulence factors and copolymerizing effects with other periodontal pathogens, such as the red complex. Inhibiting F. nucleatum is an essential target for preventing periodontitis. The time-consuming and costly traditional periodontal treatment, periodontal scaling, and root planing are a significant burden on individual and public health. Antibiotic use may lead to oral microbial resistance and microbiome imbalance, while probiotics regulate microbial balance. Akkermansia muciniphila is a critical probiotic isolated from the human intestine. It can protect the integrity of the epithelial barrier, regulate and maintain flora homeostasis, improve metabolism, and colonize the oral cavity. Its abundance is inversely correlated with various diseases. We hypothesized that A. muciniphila could inhibit the effects of F. nucleatum and alleviate periodontitis. Bacterial co-culture experiments showed that A. muciniphila could inhibit the expression of the virulence gene of F. nucleatum. After treating gingival epithelial cells (GECs) with F. nucleatum and A. muciniphila, transcriptome sequencing and ELISA experiments on medium supernatant showed that A. muciniphila inhibited the inflammatory effect of F. nucleatum on GECs by inhibiting TLR/MyD88/NF-κB pathway modulation and secretion of inflammatory factors. Finally, animal experiments demonstrated that A. muciniphila could inhibit F. nucleatum-induced periodontitis in BALB/c mice.
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Affiliation(s)
- Bingqing Song
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, 610041, Chengdu, China
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, 610041, Chengdu, China
| | - Wenpan Xian
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, 610041, Chengdu, China
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, 610041, Chengdu, China
| | - Yan Sun
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, 610041, Chengdu, China
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, 610041, Chengdu, China
| | - Lichen Gou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, 610041, Chengdu, China
| | - Qiang Guo
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, 610041, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, 610041, Chengdu, China
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, 610041, Chengdu, China
| | - Biao Ren
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, 610041, Chengdu, China.
| | - Lei Cheng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, 610041, Chengdu, China.
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, 610041, Chengdu, China.
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14
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Chen WA, Dou Y, Fletcher HM, Boskovic DS. Local and Systemic Effects of Porphyromonas gingivalis Infection. Microorganisms 2023; 11:470. [PMID: 36838435 PMCID: PMC9963840 DOI: 10.3390/microorganisms11020470] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 02/16/2023] Open
Abstract
Porphyromonas gingivalis, a gram-negative anaerobe, is a leading etiological agent in periodontitis. This infectious pathogen can induce a dysbiotic, proinflammatory state within the oral cavity by disrupting commensal interactions between the host and oral microbiota. It is advantageous for P. gingivalis to avoid complete host immunosuppression, as inflammation-induced tissue damage provides essential nutrients necessary for robust bacterial proliferation. In this context, P. gingivalis can gain access to the systemic circulation, where it can promote a prothrombotic state. P. gingivalis expresses a number of virulence factors, which aid this pathogen toward infection of a variety of host cells, evasion of detection by the host immune system, subversion of the host immune responses, and activation of several humoral and cellular hemostatic factors.
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Affiliation(s)
- William A Chen
- Division of Biochemistry, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA
| | - Yuetan Dou
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA
| | - Hansel M Fletcher
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA
| | - Danilo S Boskovic
- Division of Biochemistry, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA
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15
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Xiang D, Dong PT, Cen L, Bor B, Lux R, Shi W, Yu Q, He X, Wu T. Antagonistic interaction between two key endodontic pathogens Enterococcus faecalis and Fusobacterium nucleatum. J Oral Microbiol 2023; 15:2149448. [DOI: 10.1080/20002297.2022.2149448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Doudou Xiang
- Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi, China
- Department of Microbiology, The Forsyth Institute, Cambridge, Massachusetts, USA
| | - Pu-Ting Dong
- Department of Microbiology, The Forsyth Institute, Cambridge, Massachusetts, USA
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Lujia Cen
- Department of Microbiology, The Forsyth Institute, Cambridge, Massachusetts, USA
| | - Batbileg Bor
- Department of Microbiology, The Forsyth Institute, Cambridge, Massachusetts, USA
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Renate Lux
- School of Dentistry, UCLA, Los Angeles, California, USA
| | - Wenyuan Shi
- Department of Microbiology, The Forsyth Institute, Cambridge, Massachusetts, USA
| | - Qing Yu
- Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Xuesong He
- Department of Microbiology, The Forsyth Institute, Cambridge, Massachusetts, USA
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Tingxi Wu
- Department of Microbiology, The Forsyth Institute, Cambridge, Massachusetts, USA
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16
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Sun Y, Xu W, Jiang C, Zhou T, Wang Q, A L. Gold nanoparticle decoration potentiate the antibacterial enhancement of TiO 2 nanotubes via sonodynamic therapy against peri-implant infections. Front Bioeng Biotechnol 2022; 10:1074083. [PMID: 36466357 PMCID: PMC9713247 DOI: 10.3389/fbioe.2022.1074083] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 11/07/2022] [Indexed: 09/22/2023] Open
Abstract
Inflammatory damage from bacterial biofilms usually causes the failure of tooth implantation. A promising solution for this challenge is to use an implant surface with a long-term, in-depth and efficient antibacterial feature. In this study, we developed an ultrasound-enhanced antibacterial implant surface based on Au nanoparticle modified TiO2 nanotubes (AuNPs-TNTs). As an artificial tooth surface, films based on AuNPs-TNTs showed excellent biocompatibility. Importantly, compared to bare titania surface, a larger amount of reactive oxygen radicals was generated on AuNPs-TNTs under an ultrasound treatment. For a proof-of-concept application, Porphyromonas gingivalis (P. gingivalis) was used as the model bacteria; the as-proposed AuNPs-TNTs exhibited significantly enhanced antibacterial activity under a simple ultrasound treatment. This antibacterial film offers a new way to design the surface of an artificial implant coating for resolving the bacterial infection induced failure of dental implants.
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Affiliation(s)
- Yue Sun
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, Changchun, China
| | - Wenzhou Xu
- Department of Periodontology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Cong Jiang
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Tianyu Zhou
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Qiqi Wang
- Department of Periodontology, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Lan A
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, Changchun, China
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17
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Udayasuryan B, Ahmad RN, Nguyen TTD, Umaña A, Roberts LM, Sobol P, Jones SD, Munson JM, Slade DJ, Verbridge SS. Fusobacterium nucleatum induces proliferation and migration in pancreatic cancer cells through host autocrine and paracrine signaling. Sci Signal 2022; 15:eabn4948. [PMID: 36256708 PMCID: PMC9732933 DOI: 10.1126/scisignal.abn4948] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The tumor microbiome is increasingly implicated in cancer progression and resistance to chemotherapy. In pancreatic ductal adenocarcinoma (PDAC), high intratumoral loads of Fusobacterium nucleatum correlate with shorter survival in patients. Here, we investigated the potential mechanisms underlying this association. We found that F. nucleatum infection induced both normal pancreatic epithelial cells and PDAC cells to secrete increased amounts of the cytokines GM-CSF, CXCL1, IL-8, and MIP-3α. These cytokines increased proliferation, migration, and invasive cell motility in both infected and noninfected PDAC cells but not in noncancerous pancreatic epithelial cells, suggesting autocrine and paracrine signaling to PDAC cells. This phenomenon occurred in response to Fusobacterium infection regardless of the strain and in the absence of immune and other stromal cells. Blocking GM-CSF signaling markedly limited proliferative gains after infection. Thus, F. nucleatum infection in the pancreas elicits cytokine secretion from both normal and cancerous cells that promotes phenotypes in PDAC cells associated with tumor progression. The findings support the importance of exploring host-microbe interactions in pancreatic cancer to guide future therapeutic interventions.
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Affiliation(s)
- Barath Udayasuryan
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA 24061
| | - Raffae N. Ahmad
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA 24061
| | | | - Ariana Umaña
- Department of Biochemistry, Virginia Tech, Blacksburg, VA 24061
| | | | - Polina Sobol
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA 24061
| | - Stephen D. Jones
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA 24061
| | - Jennifer M. Munson
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA 24061,Comprehensive Cancer Center, Wake Forest University School of Medicine, Winston-Salem, NC 27157
| | - Daniel J. Slade
- Department of Biochemistry, Virginia Tech, Blacksburg, VA 24061
| | - Scott S. Verbridge
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA 24061,Comprehensive Cancer Center, Wake Forest University School of Medicine, Winston-Salem, NC 27157,Corresponding author.
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18
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Guo Y, Xu F, Thomas SC, Zhang Y, Paul B, Sakilam S, Chae S, Li P, Almeter C, Kamer AR, Arora P, Graves DT, Saxena D, Li X. Targeting the succinate receptor effectively inhibits periodontitis. Cell Rep 2022; 40:111389. [PMID: 36130514 PMCID: PMC9533417 DOI: 10.1016/j.celrep.2022.111389] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 05/06/2022] [Accepted: 08/30/2022] [Indexed: 11/25/2022] Open
Abstract
Periodontal disease (PD) is one of the most common inflammatory diseases in humans and is initiated by an oral microbial dysbiosis that stimulates inflammation and bone loss. Here, we report an abnormal elevation of succinate in the subgingival plaque of subjects with severe PD. Succinate activates succinate receptor-1 (SUCNR1) and stimulates inflammation. We detected SUCNR1 expression in the human and mouse periodontium and hypothesize that succinate activates SUCNR1 to accelerate periodontitis through the inflammatory response. Administration of exogenous succinate enhanced periodontal disease, whereas SUCNR1 knockout mice were protected from inflammation, oral dysbiosis, and subsequent periodontal bone loss in two different models of periodontitis. Therapeutic studies demonstrated that a SUCNR1 antagonist inhibited inflammatory events and osteoclastogenesis in vitro and reduced periodontal bone loss in vivo. Our study reveals succinate’s effect on periodontitis pathogenesis and provides a topical treatment for this disease. Periodontitis is the most prevalent adult oral disease. Guo et al. show elevation of succinate in periodontitis, which aggravates the disease through the succinate receptor (SUCNR1). They developed a gel formulation of a small compound specifically blocking SUCNR1 to prevent and treat periodontitis by inhibiting dysbiosis, inflammation, and bone loss.
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Affiliation(s)
- Yuqi Guo
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Fangxi Xu
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Scott C Thomas
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Yanli Zhang
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Bidisha Paul
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Satish Sakilam
- Department of Chemistry, New York University, New York, NY 10003, USA
| | - Sungpil Chae
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Patty Li
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Caleb Almeter
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Angela R Kamer
- Department of Periodontology and Implant Dentistry, New York University College of Dentistry, New York, NY 10010, USA
| | - Paramjit Arora
- Department of Chemistry, New York University, New York, NY 10003, USA
| | - Dana T Graves
- Department of Periodontics, University of Pennsylvania School of Dental Medicine, Philadelphia, PA 19104, USA
| | - Deepak Saxena
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA; Department of Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA.
| | - Xin Li
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA; Department of Urology, New York University Grossman School of Medicine, New York, NY 10016, USA; Perlmutter Cancer Institute, New York University Langone Medical Center, New York, NY 10016, USA.
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19
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Chen X, Wang N, Wang J, Liao B, Cheng L, Ren B. The interactions between oral-gut axis microbiota and Helicobacter pylori. Front Cell Infect Microbiol 2022; 12:914418. [PMID: 35992177 PMCID: PMC9381925 DOI: 10.3389/fcimb.2022.914418] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Abstract
In the human body, each microbial habitat exhibits a different microbial population pattern, and these distinctive microflorae are highly related to the development of diseases. The microbial interactions from host different niches are becoming crucial regulators to shape the microbiota and their physiological or pathological functions. The oral cavity and gut are the most complex and interdependent microbial habitats. Helicobacter pylori is one of the most important pathogens from digestive tract, especially the stomach, due to its direct relationships with many gastric diseases including gastric cancer. H. pylori infections can destroy the normal gastric environment and make the stomach a livable channel to enhance the microbial interactions between oral cavity and gut, thus reshaping the oral and gut microbiomes. H. pylori can be also detected in the oral and gut, while the interaction between the oral-gut axis microbiota and H. pylori plays a major role in H. pylori’s colonization, infection, and pathogenicity. Both the infection and eradication of H. pylori and its interaction with oral-gut axis microbiota can alter the balance of the microecology of the oral-gut axis, which can affect the occurrence and progress of related diseases. The shift of oral-gut axis microbiota and their interactions with H. pylori maybe potential targets for H. pylori infectious diagnosis and treatment.
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Affiliation(s)
- Xi Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Nanxi Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China School of Stomatology, Sichuan University, Chengdu, China
| | - Jiannan Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China School of Stomatology, Sichuan University, Chengdu, China
| | - Binyou Liao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China School of Stomatology, Sichuan University, Chengdu, China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Lei Cheng, ; Biao Ren,
| | - Biao Ren
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China School of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Lei Cheng, ; Biao Ren,
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20
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Muchova M, Balacco DL, Grant MM, Chapple ILC, Kuehne SA, Hirschfeld J. Fusobacterium nucleatum Subspecies Differ in Biofilm Forming Ability in vitro. FRONTIERS IN ORAL HEALTH 2022; 3:853618. [PMID: 35368312 PMCID: PMC8967363 DOI: 10.3389/froh.2022.853618] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/18/2022] [Indexed: 11/13/2022] Open
Abstract
Development of dysbiosis in complex multispecies bacterial biofilms forming on teeth, known as dental plaque, is one of the factors causing periodontitis. Fusobacterium nucleatum (F. nucleatum) is recognised as a key microorganism in subgingival dental plaque, and is linked to periodontitis as well as colorectal cancer and systemic diseases. Five subspecies of F. nucleatum have been identified: animalis, fusiforme, nucleatum, polymorphum, and vincentii. Differential integration of subspecies into multispecies biofilm models has been reported, however, biofilm forming ability of individual F. nucleatum subspecies is largely unknown. The aim of this study was to determine the single-subspecies biofilm forming abilities of F. nucleatum ATCC type strains. Static single subspecies F. nucleatum biofilms were grown anaerobically for 3 days on untreated or surface-modified (sandblasting, artificial saliva, fibronectin, gelatin, or poly-L-lysine coating) plastic and glass coverslips. Biofilm mass was quantified using crystal violet (CV) staining. Biofilm architecture and thickness were analysed by scanning electron microscopy and confocal laser scanning microscopy. Bioinformatic analysis was performed to identify orthologues of known adhesion proteins in F. nucleatum subspecies. Surface type and treatment significantly influenced single-subspecies biofilm formation. Biofilm formation was overall highest on poly-L-lysine coated surfaces and sandblasted glass surfaces. Biofilm thickness and stability, as well as architecture, varied amongst the subspecies. Interestingly, F. nucleatum ssp. polymorphum did not form a detectable, continuous layer of biofilm on any of the tested substrates. Consistent with limited biofilm forming ability in vitro, F. nucleatum ssp. polymorphum showed the least conservation of the adhesion proteins CmpA and Fap2 in silico. Here, we show that biofilm formation by F. nucleatum in vitro is subspecies- and substrate-specific. Additionally, F. nucleatum ssp. polymorphum does not appear to form stable single-subspecies continuous layers of biofilm in vitro. Understanding the differences in F. nucleatum single-subspecies biofilm formation may shed light on multi-species biofilm formation mechanisms and may reveal new virulence factors as novel therapeutic targets for prevention and treatment of F. nucleatum-mediated infections and diseases.
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21
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Gönczi NN, Strang O, Bagi Z, Rákhely G, Kovács KL. Interactions between probiotic and oral pathogenic strains. Biol Futur 2021; 72:461-471. [PMID: 34554489 DOI: 10.1007/s42977-021-00091-3] [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: 08/19/2020] [Accepted: 05/19/2021] [Indexed: 10/21/2022]
Abstract
More than 6 billion bacteria and other microorganisms live in the adult oral cavity. As a result of any deleterious effect on this community, some microorganisms will survive better than others, which may trigger pathogenic processes like caries, halitosis, gingivitis or periodontitis. Oral dysbiosis is among the most frequent human health hazards globally. Quality of life of patients deteriorates notably, while treatments are often unpleasant, expensive and irreversible, e.g. tooth loss. In the experiments reported here, we investigated the individual interactions between 8 pathogenic and 8 probiotic strains and a commercially available probiotic product. Almost all pathogens, namely Fusobacterium nucleatum, Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, Streptococcus mutans, Streptococcus oralis, Streptococcus gordonii, Enterococcus faecalis and Prevotella buccae are pathogens frequently occurring in the oral cavity. The used probiotic strains were Lactobacillus plantarum, Lactobacillus rhamnosus, Lactobacillus casei, Lactobacillus acidophilus, Lactobacillus delbrueckii, Bifidobacterium thermophilum and two Streptococcus dentisani isolates. Using a modified agar diffusion method, we investigated capability of the probiotic bacteria to prevent the growth of the pathogenic ones in order to identify candidates for future therapeutic treatments. The results indicated successful bacteriocin production, i.e. growth inhibition, against every pathogenic bacterium by at least 5 probiotic strains.
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Affiliation(s)
- Noémi N Gönczi
- Department of Biotechnology, University of Szeged, Közép fasor 52., Szeged, 6726, Hungary.
| | - Orsolya Strang
- Department of Biotechnology, University of Szeged, Közép fasor 52., Szeged, 6726, Hungary
| | - Zoltán Bagi
- Department of Biotechnology, University of Szeged, Közép fasor 52., Szeged, 6726, Hungary
| | - Gábor Rákhely
- Department of Biotechnology, University of Szeged, Közép fasor 52., Szeged, 6726, Hungary.,Institute of Biophysics, Biological Research Centre, Temesvári krt. 62., Szeged, 6726, Hungary
| | - Kornél L Kovács
- Department of Biotechnology, University of Szeged, Közép fasor 52., Szeged, 6726, Hungary.,Department of Oral Biology and Experimental Dental Research, University of Szeged, Tisza Lajos körút 64-66., Szeged, 6726, Hungary
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22
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Presence of non-oral bacteria in the oral cavity. Arch Microbiol 2021; 203:2747-2760. [PMID: 33791834 PMCID: PMC8012020 DOI: 10.1007/s00203-021-02300-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/20/2020] [Accepted: 03/22/2021] [Indexed: 12/30/2022]
Abstract
A homeostatic balance exists between the resident microbiota in the oral cavity and the host. Perturbations of the oral microbiota under particular conditions can contribute to the growth of non-oral pathogens that are hard to kill because of their higher resistance to antimicrobials, raising the probability of treatment failure and reinfection. The presence of these bacteria in the oral cavity has been proven to be associated with several oral diseases such as periodontitis, caries, and gingivitis, and systemic diseases of importance in clinical medicine such as cystic fibrosis, HIV, and rheumatoid arthritis. However, it is still controversial whether these species are merely transient members or unique to the oral cavity. Mutualistic and antagonistic interactions between the oral microbiota and non-oral pathogens can also occur, though the mechanisms used by these bacteria are not clear. Therefore, this review presents an overview of the current knowledge about the presence of non-oral bacteria in the oral cavity, their relationship with systemic and oral diseases, and their interactions with oral bacteria.
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23
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Engevik MA, Danhof HA, Ruan W, Engevik AC, Chang-Graham AL, Engevik KA, Shi Z, Zhao Y, Brand CK, Krystofiak ES, Venable S, Liu X, Hirschi KD, Hyser JM, Spinler JK, Britton RA, Versalovic J. Fusobacterium nucleatum Secretes Outer Membrane Vesicles and Promotes Intestinal Inflammation. mBio 2021; 12:e02706-20. [PMID: 33653893 PMCID: PMC8092269 DOI: 10.1128/mbio.02706-20] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/22/2021] [Indexed: 12/17/2022] Open
Abstract
Multiple studies have implicated microbes in the development of inflammation, but the mechanisms remain unknown. Bacteria in the genus Fusobacterium have been identified in the intestinal mucosa of patients with digestive diseases; thus, we hypothesized that Fusobacterium nucleatum promotes intestinal inflammation. The addition of >50 kDa F. nucleatum conditioned media, which contain outer membrane vesicles (OMVs), to colonic epithelial cells stimulated secretion of the proinflammatory cytokines interleukin-8 (IL-8) and tumor necrosis factor (TNF). In addition, purified F. nucleatum OMVs, but not compounds <50 kDa, stimulated IL-8 and TNF production; which was decreased by pharmacological inhibition of Toll-like receptor 4 (TLR4). These effects were linked to downstream effectors p-ERK, p-CREB, and NF-κB. F. nucleatum >50-kDa compounds also stimulated TNF secretion, p-ERK, p-CREB, and NF-κB activation in human colonoid monolayers. In mice harboring a human microbiota, pretreatment with antibiotics and a single oral gavage of F. nucleatum resulted in inflammation. Compared to mice receiving vehicle control, mice treated with F. nucleatum showed disruption of the colonic architecture, with increased immune cell infiltration and depleted mucus layers. Analysis of mucosal gene expression revealed increased levels of proinflammatory cytokines (KC, TNF, IL-6, IFN-γ, and MCP-1) at day 3 and day 5 in F. nucleatum-treated mice compared to controls. These proinflammatory effects were absent in mice who received F. nucleatum without pretreatment with antibiotics, suggesting that an intact microbiome is protective against F. nucleatum-mediated immune responses. These data provide evidence that F. nucleatum promotes proinflammatory signaling cascades in the context of a depleted intestinal microbiome.IMPORTANCE Several studies have identified an increased abundance of Fusobacterium in the intestinal tracts of patients with colon cancer, liver cirrhosis, primary sclerosing cholangitis, gastroesophageal reflux disease, HIV infection, and alcoholism. However, the direct mechanism(s) of action of Fusobacterium on pathophysiological within the gastrointestinal tract is unclear. These studies have identified that F. nucleatum subsp. polymorphum releases outer membrane vesicles which activate TLR4 and NF-κB to stimulate proinflammatory signals in vitro Using mice harboring a human microbiome, we demonstrate that F. nucleatum can promote inflammation, an effect which required antibiotic-mediated alterations in the gut microbiome. Collectively, these results suggest a mechanism by which F. nucleatum may contribute to intestinal inflammation.
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Affiliation(s)
- Melinda A Engevik
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
- Department of Pathology, Texas Children's Hospital, Houston, Texas, USA
| | - Heather A Danhof
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Wenly Ruan
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Amy C Engevik
- Department of Surgical Sciences, Vanderbilt University Medical Center, Nashville Tennessee, USA
| | - Alexandra L Chang-Graham
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Kristen A Engevik
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Zhongcheng Shi
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
- Department of Pathology, Texas Children's Hospital, Houston, Texas, USA
| | - Yanling Zhao
- Department of Pediatrics, Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
| | - Colleen K Brand
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Evan S Krystofiak
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA
| | - Susan Venable
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
- Department of Pathology, Texas Children's Hospital, Houston, Texas, USA
| | - Xinli Liu
- Department of Pharmacological and Pharmaceutical Sciences, University of Houston, Houston, Texas, USA
| | - Kendal D Hirschi
- Department of Pediatrics and Human and Molecular Genetics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas, USA
| | - Joseph M Hyser
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Jennifer K Spinler
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
- Department of Pathology, Texas Children's Hospital, Houston, Texas, USA
| | - Robert A Britton
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - James Versalovic
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
- Department of Pathology, Texas Children's Hospital, Houston, Texas, USA
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24
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Sadiq FA, Burmølle M, Heyndrickx M, Flint S, Lu W, Chen W, Zhao J, Zhang H. Community-wide changes reflecting bacterial interspecific interactions in multispecies biofilms. Crit Rev Microbiol 2021; 47:338-358. [PMID: 33651958 DOI: 10.1080/1040841x.2021.1887079] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Existence of most bacterial species, in natural, industrial, and clinical settings in the form of surface-adhered communities or biofilms has been well acknowledged for decades. Research predominantly focusses on single-species biofilms as these are relatively easy to study. However, microbiologists are now interested in studying multispecies biofilms and revealing interspecific interactions in these communities because of the existence of a plethora of different bacterial species together in almost all natural settings. Multispecies biofilms-led emergent properties are triggered by bacterial social interactions which have huge implication for research and practical knowledge useful for the control and manipulation of these microbial communities. Here, we discuss some important bacterial interactions that take place in multispecies biofilm communities and provide insights into community-wide changes that indicate bacterial interactions and elucidate underlying mechanisms.
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Affiliation(s)
- Faizan Ahmed Sadiq
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Mette Burmølle
- Section of Microbiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Marc Heyndrickx
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology & Food Sciences Unit, Melle, Belgium.,Department of Pathology, Bacteriology and Poultry Diseases, Ghent University, Merelbeke, Belgium
| | - Steve Flint
- School of Food and Advanced Technology, Massey University, Palmerston North, New Zealand
| | - Wenwei Lu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
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25
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Engevik MA, Danhof HA, Auchtung J, Endres BT, Ruan W, Bassères E, Engevik AC, Wu Q, Nicholson M, Luna RA, Garey KW, Crawford SE, Estes MK, Lux R, Yacyshyn MB, Yacyshyn B, Savidge T, Britton RA, Versalovic J. Fusobacteriumnucleatum Adheres to Clostridioides difficile via the RadD Adhesin to Enhance Biofilm Formation in Intestinal Mucus. Gastroenterology 2021; 160:1301-1314.e8. [PMID: 33227279 PMCID: PMC7956072 DOI: 10.1053/j.gastro.2020.11.034] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/02/2020] [Accepted: 11/13/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND & AIMS Although Clostridioides difficile infection (CDI) is known to involve the disruption of the gut microbiota, little is understood regarding how mucus-associated microbes interact with C difficile. We hypothesized that select mucus-associated bacteria would promote C difficile colonization and biofilm formation. METHODS To create a model of the human intestinal mucus layer and gut microbiota, we used bioreactors inoculated with healthy human feces, treated with clindamycin and infected with C difficile with the addition of human MUC2-coated coverslips. RESULTS C difficile was found to colonize and form biofilms on MUC2-coated coverslips, and 16S rRNA sequencing showed a unique biofilm profile with substantial cocolonization with Fusobacterium species. Consistent with our bioreactor data, publicly available data sets and patient stool samples showed that a subset of patients with C difficile infection harbored high levels of Fusobacterium species. We observed colocalization of C difficile and F nucleatum in an aggregation assay using adult patients and stool of pediatric patients with inflammatory bowel disease and in tissue sections of patients with CDI. C difficile strains were found to coaggregate with F nucleatum subspecies in vitro; an effect that was inhibited by blocking or mutating the adhesin RadD on Fusobacterium and removal of flagella on C difficile. Aggregation was shown to be unique between F nucleatum and C difficile, because other gut commensals did not aggregate with C difficile. Addition of F nucleatum also enhanced C difficile biofilm formation and extracellular polysaccharide production. CONCLUSIONS Collectively, these data show a unique interaction of between pathogenic C difficile and F nucleatum in the intestinal mucus layer.
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Affiliation(s)
- Melinda A. Engevik
- Department of Pathology & Immunology, Baylor College of
Medicine,Texas Children’s Microbiome Center, Department of
Pathology, Texas Children's Hospital
| | - Heather A. Danhof
- Department of Molecular Virology and Microbiology, Baylor
College of Medicine
| | - Jennifer Auchtung
- Department of Molecular Virology and Microbiology, Baylor
College of Medicine,Department of Food Science and Technology, University of
Nebraska-Lincoln
| | - Bradley T. Endres
- Department of Pharmacy Practice and Translational Research,
University of Houston College of Pharmacy
| | - Wenly Ruan
- Department of Pathology & Immunology, Baylor College of
Medicine,Texas Children’s Microbiome Center, Department of
Pathology, Texas Children's Hospital
| | - Eugénie Bassères
- Department of Pharmacy Practice and Translational Research,
University of Houston College of Pharmacy
| | - Amy C. Engevik
- Department of Surgical Sciences, Vanderbilt University
Medical Center
| | - Qinglong Wu
- Department of Pathology & Immunology, Baylor College of
Medicine,Texas Children’s Microbiome Center, Department of
Pathology, Texas Children's Hospital
| | | | - Ruth Ann Luna
- Department of Pathology & Immunology, Baylor College of
Medicine,Texas Children’s Microbiome Center, Department of
Pathology, Texas Children's Hospital
| | - Kevin W. Garey
- Department of Pharmacy Practice and Translational Research,
University of Houston College of Pharmacy
| | - Sue E. Crawford
- Department of Molecular Virology and Microbiology, Baylor
College of Medicine
| | - Mary K. Estes
- Department of Molecular Virology and Microbiology, Baylor
College of Medicine,Department of Surgical Sciences, Vanderbilt University
Medical Center
| | - Renate Lux
- Department of Periodontics, University of California Los
Angeles School of Dentistry
| | - Mary Beth Yacyshyn
- Department of Medicine Division of Digestive Diseases
University of Cincinnati College of Medicine
| | - Bruce Yacyshyn
- Department of Medicine Division of Digestive Diseases
University of Cincinnati College of Medicine
| | - Tor Savidge
- Department of Pathology & Immunology, Baylor College of
Medicine,Texas Children’s Microbiome Center, Department of
Pathology, Texas Children's Hospital
| | - Robert A. Britton
- Department of Molecular Virology and Microbiology, Baylor
College of Medicine
| | - James Versalovic
- Department of Pathology & Immunology, Baylor College of
Medicine,Texas Children’s Microbiome Center, Department of
Pathology, Texas Children's Hospital
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26
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Mountcastle SE, Cox SC, Sammons RL, Jabbari S, Shelton RM, Kuehne SA. A review of co-culture models to study the oral microenvironment and disease. J Oral Microbiol 2020; 12:1773122. [PMID: 32922679 PMCID: PMC7448840 DOI: 10.1080/20002297.2020.1773122] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 04/25/2020] [Accepted: 05/19/2020] [Indexed: 12/19/2022] Open
Abstract
Co-cultures allow for the study of cell-cell interactions between different eukaryotic species or with bacteria. Such an approach has enabled researchers to more closely mimic complex tissue structures. This review is focused on co-culture systems modelling the oral cavity, which have been used to evaluate this unique cellular environment and understand disease progression. Over time, these systems have developed significantly from simple 2D eukaryotic cultures and planktonic bacteria to more complex 3D tissue engineered structures and biofilms. Careful selection and design of the co-culture along with critical parameters, such as seeding density and choice of analysis method, have resulted in several advances. This review provides a comparison of existing co-culture systems for the oral environment, with emphasis on progression of 3D models and the opportunity to harness techniques from other fields to improve current methods. While filling a gap in navigating this literature, this review ultimately supports the development of this vital technique in the field of oral biology.
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Affiliation(s)
- Sophie E Mountcastle
- EPSRC Centre for Doctoral Training in Physical Sciences for Health, University of Birmingham, Birmingham, UK
- School of Dentistry, University of Birmingham, Birmingham, UK
| | - Sophie C Cox
- School of Chemical Engineering, University of Birmingham, Birmingham, UK
| | | | - Sara Jabbari
- School of Mathematics, University of Birmingham, Birmingham, UK
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
| | | | - Sarah A Kuehne
- School of Dentistry, University of Birmingham, Birmingham, UK
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
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27
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Brennan CA, Garrett WS. Fusobacterium nucleatum - symbiont, opportunist and oncobacterium. Nat Rev Microbiol 2020; 17:156-166. [PMID: 30546113 DOI: 10.1038/s41579-018-0129-6] [Citation(s) in RCA: 582] [Impact Index Per Article: 145.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Fusobacterium nucleatum has long been found to cause opportunistic infections and has recently been implicated in colorectal cancer; however, it is a common member of the oral microbiota and can have a symbiotic relationship with its hosts. To address this dissonance, we explore the diversity and niches of fusobacteria and reconsider historic fusobacterial taxonomy in the context of current technology. We also undertake a critical reappraisal of fusobacteria with a focus on F. nucleatum as a mutualist, infectious agent and oncogenic microorganism. In this Review, we delve into recent insights and future directions for fusobacterial research, including the current genetic toolkit, our evolving understanding of its mechanistic role in promoting colorectal cancer and the challenges of developing diagnostics and therapeutics for F. nucleatum.
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Affiliation(s)
| | - Wendy S Garrett
- Harvard T. H. Chan School of Public Health, Boston, MA, USA.
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28
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Shokeen B, Park J, Duong E, Rambhia S, Paul M, Weinberg A, Shi W, Lux R. Role of FAD-I in Fusobacterial Interspecies Interaction and Biofilm Formation. Microorganisms 2020; 8:E70. [PMID: 31906541 PMCID: PMC7023056 DOI: 10.3390/microorganisms8010070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 12/25/2019] [Accepted: 12/31/2019] [Indexed: 11/17/2022] Open
Abstract
: RadD, a major adhesin of oral fusobacteria, is part of a four-gene operon encoding the small lipoprotein FAD-I and two currently uncharacterized small proteins encoded by the rapA and rapB genes. Previously, we described a role for FAD-I in the induction of human B-defensin 2 (hBD2) upon contact with oral epithelial cells. Here, we investigated potential roles for fad-I, rapA, and rapB in interspecies interaction and biofilm formation. Gene inactivation mutants were generated for each of these genes in the nucleatum and polymorphum subspecies of Fusobacterium nucleatum and characterized for their adherence to partner species, biofilm formation, and operon transcription. Binding to Streptococcus gordonii was increased in all mutant strains with Δfad-I having the most significant effect. This increased adherence was directly proportional to elevated radD transcript levels and resulted in significantly different architecture and height of the biofilms formed by Δfad-I and S. gordonii compared to the wild-type parent. In conclusion, FAD-I is important for fusobacterial interspecies interaction as its lack leads to increased production of the RadD adhesin suggesting a role of FAD-I in its regulation. This regulatory effect does not require the presence of functional RadD.
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Affiliation(s)
- Bhumika Shokeen
- Section of Periodontics, Division of Constitutive & Regenerative Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Jane Park
- Section of Periodontics, Division of Constitutive & Regenerative Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Emily Duong
- Section of Periodontics, Division of Constitutive & Regenerative Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Sonam Rambhia
- Section of Periodontics, Division of Constitutive & Regenerative Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Manash Paul
- David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA
| | - Aaron Weinberg
- Department of Biological Sciences, Case Western Reserve University, Cleveland, OH 44106-4905, USA
| | - Wenyuan Shi
- The Forsyth Institute, Cambridge, MA 02142, USA
| | - Renate Lux
- Section of Periodontics, Division of Constitutive & Regenerative Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
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Lima BP, Hu LI, Vreeman GW, Weibel DB, Lux R. The Oral Bacterium Fusobacterium nucleatum Binds Staphylococcus aureus and Alters Expression of the Staphylococcal Accessory Regulator sarA. MICROBIAL ECOLOGY 2019; 78:336-347. [PMID: 30474730 DOI: 10.1007/s00248-018-1291-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 11/07/2018] [Indexed: 06/09/2023]
Abstract
Staphylococcus aureus, an opportunistic pathogen member of the nasal and skin microbiota, can also be found in human oral samples and has been linked to infectious diseases of the oral cavity. As the nasal and oral cavities are anatomically connected, it is currently unclear whether S. aureus can colonize the oral cavity and become part of the oral microbiota, or if its presence in the oral cavity is simply transient. To start addressing this question, we assessed S. aureus ability to directly bind selected members of the oral microbiota as well as its ability to integrate into a human-derived complex oral microbial community in vitro. Our data show that S. aureus forms aggregates with Fusobacterium nucleatum and Porphyromonas gingivalis and that it can incorporate into the human-derived in vitro oral community. Further analysis of the F. nucleatum-S. aureus interaction revealed that the outer-membrane adhesin RadD is partially involved in aggregate formation and that the RadD-mediated interaction leads to an increase in expression of the staphylococcal global regulator gene sarA. Our findings lend support to the notion that S. aureus can become part of the complex microbiota of the human mouth, which could serve as a reservoir for S. aureus. Furthermore, direct interaction with key members of the oral microbiota could affect S. aureus pathogenicity contributing to the development of several S. aureus associated oral infections.
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Affiliation(s)
- Bruno P Lima
- Division of Constitutive and Regenerative Sciences, School of Dentistry, University of California, Los Angeles, CA, USA
- Department of Diagnostic and Biological Sciences, School of Dentistry, Universit of Minnesota, Minneapolis, MN, USA
| | - Linda I Hu
- Department of Biochemistry, University of Wisconsin-Madison, 440 Henry Mall, Madison, WI, USA
- Department of Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Gerrit W Vreeman
- Department of Diagnostic and Biological Sciences, School of Dentistry, Universit of Minnesota, Minneapolis, MN, USA
| | - Douglas B Weibel
- Department of Biochemistry, University of Wisconsin-Madison, 440 Henry Mall, Madison, WI, USA
- Department of Chemistry, University of Wisconsin-Madison, 440 Henry Mall, Madison, WI, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, 440 Henry Mall, Madison, WI, USA
| | - Renate Lux
- Division of Constitutive and Regenerative Sciences, School of Dentistry, University of California, Los Angeles, CA, USA.
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Esteban-Fernández A, Zorraquín-Peña I, González de Llano D, Bartolomé B, Moreno-Arribas MV. The role of wine and food polyphenols in oral health. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.09.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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31
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Jung YJ, Jun HK, Choi BK. Porphyromonas gingivalis suppresses invasion of Fusobacterium nucleatum into gingival epithelial cells. J Oral Microbiol 2017; 9:1320193. [PMID: 28748028 PMCID: PMC5508355 DOI: 10.1080/20002297.2017.1320193] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 04/01/2017] [Accepted: 04/13/2017] [Indexed: 01/12/2023] Open
Abstract
Invasion of periodontal pathogens into periodontal tissues is an important step that can cause tissue destruction in periodontal diseases. Porphyromonas gingivalis is a keystone pathogen and its gingipains are key virulence factors. Fusobacterium nucleatum is a bridge organism that mediates coadhesion of disease-causing late colonizers such as P. gingivalis and early colonizers during the development of dental biofilms. The aim of this study was to investigate how P. gingivalis, in particular its gingipains, influences the invasion of coinfecting F. nucleatum into gingival epithelial cells. When invasion of F. nucleatum was analyzed after 4 h of infection, invasion of F. nucleatum was suppressed in the presence of P. gingivalis compared with during monoinfection. However, coinfection with a gingipain-null mutant of P. gingivalis did not affect invasion of F. nucleatum. Inhibition of PI3K reduced invasion of F. nucleatum. P. gingivalis inactivated the PI3K/AKT pathway, which was also dependent on gingipains. Survival of intracellular F. nucleatum was promoted by P. gingivalis with Arg gingipain mutation. The results suggest that P. gingivalis, in particular its gingipains, can affect the invasion of coinfecting F. nucleatum through modulating intracellular signaling of the host cells.
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Affiliation(s)
- Young-Jung Jung
- Department of Oral Microbiology and Immunology, School of Dentistry, University of Louisville, KY, USA
| | - Hye-Kyoung Jun
- Department of Oral Microbiology and Immunology, School of Dentistry, University of Louisville, KY, USA
| | - Bong-Kyu Choi
- Department of Oral Microbiology and Immunology, School of Dentistry, University of Louisville, KY, USA.,Dental Research Institute;Seoul National University, Seoul, Republic of Korea
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Guo L, Shokeen B, He X, Shi W, Lux R. Streptococcus mutans SpaP binds to RadD of Fusobacterium nucleatum ssp. polymorphum. Mol Oral Microbiol 2017; 32:355-364. [PMID: 27976528 DOI: 10.1111/omi.12177] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Adhesin-mediated bacterial interspecies interactions are important elements in oral biofilm formation. They often occur on a species-specific level, which could determine health or disease association of a biofilm community. Among the key players involved in these processes are the ubiquitous fusobacteria that have been recognized for their ability to interact with numerous different binding partners. Fusobacterial interactions with Streptococcus mutans, an important oral cariogenic pathogen, have previously been described but most studies focused on binding to non-mutans streptococci and specific cognate adhesin pairs remain to be identified. Here, we demonstrated differential binding of oral fusobacteria to S. mutans. Screening of existing mutant derivatives indicated SpaP as the major S. mutans adhesin specific for binding to Fusobacterium nucleatum ssp. polymorphum but none of the other oral fusobacteria tested. We inactivated RadD, a known adhesin of F. nucleatum ssp. nucleatum for interaction with a number of gram-positive species, in F. nucleatum ssp. polymorphum and used a Lactococcus lactis heterologous SpaP expression system to demonstrate SpaP interaction with RadD of F. nucleatum ssp. polymorphum. This is a novel function for SpaP, which has mainly been characterized as an adhesin for binding to host proteins including salivary glycoproteins. In conclusion, we describe an additional role for SpaP as adhesin in interspecies adherence with RadD-SpaP as the interacting adhesin pair for binding between S. mutans and F. nucleatum ssp. polymorphum. Furthermore, S. mutans attachment to oral fusobacteria appears to involve species- and subspecies-dependent adhesin interactions.
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Affiliation(s)
- Lihong Guo
- School of Dentistry, University of California, Los Angeles, CA, USA
| | - Bhumika Shokeen
- School of Dentistry, University of California, Los Angeles, CA, USA
| | - Xuesong He
- School of Dentistry, University of California, Los Angeles, CA, USA
| | - Wenyuan Shi
- School of Dentistry, University of California, Los Angeles, CA, USA
| | - Renate Lux
- School of Dentistry, University of California, Los Angeles, CA, USA
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Lima BP, Shi W, Lux R. Identification and characterization of a novel Fusobacterium nucleatum adhesin involved in physical interaction and biofilm formation with Streptococcus gordonii. Microbiologyopen 2017; 6. [PMID: 28173636 PMCID: PMC5458471 DOI: 10.1002/mbo3.444] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 12/11/2016] [Accepted: 12/21/2016] [Indexed: 11/24/2022] Open
Abstract
To successfully colonize the oral cavity, bacteria must directly or indirectly adhere to available oral surfaces. Fusobacterium nucleatum plays an important role in oral biofilm community development due to its broad adherence abilities, serving as a bridge between members of the oral biofilm that cannot directly bind to each other. In our efforts to characterize the molecular mechanisms utilized by F. nucleatum to physically bind to key members of the oral community, we investigated the involvement of F. nucleatum outer membrane proteins in its ability to bind to the pioneer biofilm colonizer, Streptococcus gordonii. Here, we present evidence that in addition to the previously characterized fusobacterial adhesin RadD, the interaction between F. nucleatum ATCC 23726 and S. gordonii V288 involves a second outer membrane protein, which we named coaggregation mediating protein A (CmpA). We also characterized the role of CmpA in dual‐species biofilm formation with S. gordonii V288, evaluated growth‐phase‐dependent as well as biofilm expression profiles of radD and cmpA, and confirmed an important role for CmpA, especially under biofilm growth conditions. Our findings underscore the complex set of specific interactions involved in physical binding and thus community integration of interacting bacterial species. This complex set of interactions could have critical implications for the formation and maturation of the oral biofilms in vivo, and could provide clues to the mechanism behind the distribution of organisms inside the human oral cavity.
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Affiliation(s)
- Bruno P Lima
- Division of Constitutive and Regenerative Sciences, University of California School of Dentistry, Los Angeles, CA, USA
| | - Wenyuan Shi
- Division of Oral Biology and Medicine, University of California School of Dentistry, Los Angeles, CA, USA
| | - Renate Lux
- Division of Constitutive and Regenerative Sciences, University of California School of Dentistry, Los Angeles, CA, USA.,Division of Oral Biology and Medicine, University of California School of Dentistry, Los Angeles, CA, USA
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