1
|
Zhang X, Xiao H, Zhang H, Jiang Y. Lactobacillus plantarum surface-displayed FomA ( Fusobacterium nucleatum) protein generally stimulates protective immune responses in mice. Front Microbiol 2023; 14:1228857. [PMID: 37799603 PMCID: PMC10548212 DOI: 10.3389/fmicb.2023.1228857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/07/2023] [Indexed: 10/07/2023] Open
Abstract
A significant correlation is observed between Fusobacterium nucleatum (F. nucleatum) and the evolution of inflammatory bowel disease (IBD). Particularly, FomA, a critical pathogenic element of F. nucleatum, inflicts substantial detriment to human intestinal health. Our research focused on the development of recombinant Lactobacillus plantarum that expresses FomA protein, demonstrating its potential in protecting mice from severe IBD induced by F. nucleatum. To commence, two recombinant strains, namely L. plantarum NC8-pSIP409-pgsA'-FomA and NC8-pSIP409-FnBPA-pgsA'-FomA, were successfully developed. Validation of the results was achieved through flow cytometry, ELISA, and MTT assays. It was observed that recombinant L. plantarum instigated mouse-specific humoral immunity and elicited mucosal and T cell-mediated immune responses. Significantly, it amplified the immune reaction of B cells and CD4+T cells, facilitated the secretion of cytokines such as IgA, IL4, and IL10, and induced lymphocyte proliferation in response to FomA protein stimulation. Finally, we discovered that administering recombinant L. plantarum could protect mice from severe IBD triggered by F. nucleatum, subsequently reducing pathological alterations and inflammatory responses. These empirical findings further the study of an innovative oral recombinant Lactobacillus vaccine.
Collapse
Affiliation(s)
- Xiaoyu Zhang
- Department of Gastrointestinal and Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Huijie Xiao
- Department of Gastrointestinal and Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Huaiyu Zhang
- Department of Rehabilitation Medicine, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yang Jiang
- Department of Gastrointestinal and Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| |
Collapse
|
2
|
Toyoshima H, Tanigawa M, Ishiguro C, Tanaka H, Nakanishi Y, Sakabe S. Vertebral osteomyelitis caused by Fusobacterium nucleatum with an associated asymptomatic liver abscess in an immunocompetent adult: a case report and literature review. IDCases 2023; 32:e01754. [PMID: 37096206 PMCID: PMC10121789 DOI: 10.1016/j.idcr.2023.e01754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023] Open
Abstract
Fusobacterium nucleatum rarely causes vertebral osteomyelitis or liver abscesses, and no reports exist of it concurrently causing vertebral osteomyelitis and pyogenic liver abscess. A 58-year-old woman with a history of periodontitis presented with worsening lumbago, left lower leg pain, numbness, and fever for a week. Physical examination indicated knocking pain at the L2-L3 levels with a psoas sign on the left side. A magnetic resonance image showed L2-S1 vertebral osteomyelitis and intervertebral discitis, with a left psoas major muscle abscess. Vertebral osteomyelitis caused by Staphylococcus aureus was suspected; blood cultures were obtained, and intravenous cefazolin was administered. Computed tomography, which was performed to detect disseminated foci, revealed a multilocular liver abscess. On day 4 of incubation, the anaerobic blood culture bottles were positive for characteristic filamentous gram-negative rods. The empiric antimicrobial therapy was changed to ampicillin/sulbactam. The isolate was identified as F. nucleatum based on 16S rRNA gene sequencing. The liver abscess was drained on day 12. Based on the antimicrobial susceptibility test results, the patient was treated with intravenous ampicillin/sulbactam for 4 weeks followed by oral amoxicillin/clavulanate for an additional 8 weeks and remained disease-free at the 1-year follow-up. Clinicians should consider F. nucleatum as the causative organism for vertebral osteomyelitis presenting with asymptomatic pyogenic liver abscess. The gold standard for identifying and diagnosing F. nucleatum infections is 16S rRNA gene sequencing, and gram staining helps determine appropriate antimicrobials.
Collapse
|
3
|
Yun SY, Lee Y, Hong J, Kim DC, Lee H, Yong D, Lim YK, Kook JK, Lee K. Identification of Fusobacterium Species Using Matrix-Assisted Laser Desorption/Ionization-Time-of-Flight Mass Spectrometry by Updating ASTA CoreDB. Yonsei Med J 2022; 63:1138-1143. [PMID: 36444550 PMCID: PMC9760896 DOI: 10.3349/ymj.2022.0271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/14/2022] [Accepted: 10/20/2022] [Indexed: 11/22/2022] Open
Abstract
PURPOSE Fusobacterium species can cause infections, and associations with cancer are being increasingly reported. As their clinical significance differs, accurate identification of individual species is important. However, matrix-assisted laser desorption/ionization-time of flight mass spectrometry has not been found to be effective in identifying Fusobacterium species in previous studies. In this study, we aimed to improve the accuracy and efficacy of identifying Fusobacterium species in clinical laboratories. MATERIALS AND METHODS In total, 229 Fusobacterium isolates were included in this study. All isolates were identified at the species level based on nucleotide sequences of the 16S ribosomal RNA gene and/or DNA-dependent RNA polymerase β-subunit gene (rpoB). Where necessary, isolates were identified based on whole genome sequences. Among them, 47 isolates were used for updating the ASTA database, and 182 isolates were used for the validation of Fusobacterium spp. identification. RESULTS Fusobacterium isolates used for validation (182/182) were correctly identified at the genus level, and most (180/182) were correctly identified at the species level using the ASTA MicroIDSys system. Most of the F. nucleatum isolates (74/75) were correctly identified at the subspecies level. CONCLUSION The updated ASTA MicroIDSys system can identify nine species of Fusobacterium and four subspecies of F. nucleatum in good agreement. This tool can be routinely used in clinical microbiology laboratories to identify Fusobacterium species and serve as a springboard for future research.
Collapse
Affiliation(s)
- Shin Young Yun
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Yunhee Lee
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Juwon Hong
- R&D Center, NOSQUEST Inc., Yongin, Korea
| | | | - Hyukmin Lee
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea.
| | - Dongeun Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Yun Kyong Lim
- Korean Collection for Oral Microbiology and Department of Oral Biochemistry, School of Dentistry, Chosun University, Gwangju, Korea
| | - Joong-Ki Kook
- Korean Collection for Oral Microbiology and Department of Oral Biochemistry, School of Dentistry, Chosun University, Gwangju, Korea.
| | - Kyungwon Lee
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
- Seoul Clinical Laboratories Academy, Yongin, Korea
| |
Collapse
|
4
|
Ou S, Wang H, Tao Y, Luo K, Ye J, Ran S, Guan Z, Wang Y, Hu H, Huang R. Fusobacterium nucleatum and colorectal cancer: From phenomenon to mechanism. Front Cell Infect Microbiol 2022; 12:1020583. [PMID: 36523635 PMCID: PMC9745098 DOI: 10.3389/fcimb.2022.1020583] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 11/09/2022] [Indexed: 11/30/2022] Open
Abstract
Colorectal cancer(CRC) is the third most frequent malignant tumor. The gut microbiome acts as a vital component of CRC etiology. Fusobacterium nucleatum(Fn) is a key member of colorectal cancer-associated bacteria. But we lack a systematic and in-depth understanding on its role in CRC evolution. In this article, We reviewed the abundance changes and distribution of Fn in CRC occurrence and development, potential effect of Fn in the initiation of CRC, the source of intratumoral Fn and the cause of its tropism to CRC. In addition, We described the mechanism by which Fn promotes the malignant biological behavior of CRC, affects CRC response to therapy, and shapes the tumor immune microenvironment in great detail. Based on the relationship between Fn and CRC, we proposed strategies for CRC prevention and treatment, and discussed the feasibility and limitations of specific cases, to gain insights into further basic and clinical research in the future.
Collapse
Affiliation(s)
- Suwen Ou
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Hufei Wang
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yangbao Tao
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Kangjia Luo
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China,Department of Gastrointestinal Surgery, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China
| | - Jinhua Ye
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Songlin Ran
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Zilong Guan
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China,Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yuliuming Wang
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Hanqing Hu
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Rui Huang
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China,*Correspondence: Rui Huang,
| |
Collapse
|
5
|
Bi D, Zhu Y, Gao Y, Li H, Zhu X, Wei R, Xie R, Wei Q, Qin H. A newly developed PCR-based method revealed distinct Fusobacterium nucleatum subspecies infection patterns in colorectal cancer. Microb Biotechnol 2021; 14:2176-2186. [PMID: 34309194 PMCID: PMC8449656 DOI: 10.1111/1751-7915.13900] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 07/12/2021] [Indexed: 12/28/2022] Open
Abstract
Fusobacterium nucleatum, which has four subspecies (nucleatum, animalis, vincentii and polymorphum), plays an important role in promoting colorectal cancer (CRC). However, as there is no efficient method of differentiating these subspecies in the context of a rich gut microbiota, the compositions in CRC remain largely unknown. In this study, a PCR-based differentiation method enabling profiling of F. nucleatum infection in CRC at the subspecies level was developed. Based on the analysis of 53 F. nucleatum genomes, we identified genetic markers specific to each subspecies and designed primers for the conserved sequences of those markers. The PCR performance of the primers was tested with F. nucleatum and non-nucleatum Fusobacterium strains, and complete consistence with taxonomy was achieved. Additionally, no non-specific amplification occurred when using human DNA. The method was then applied to faecal (n = 58) and fresh-frozen tumour tissue (n = 100) samples from CRC patients, and wide heterogeneity in F. nucleatum subspecies compositions in the gut microbiota among CRC patients was observed. Single-subspecies colonization was common, whereas coexistence of four subspecies was rare. Subspecies animalis was most prevalent, while nucleatum was not frequently detected. The results of this study contribute to our understanding of the pathogenicity of F. nucleatum at the subspecies level and the method developed has potential for clinical and epidemiological use.
Collapse
Affiliation(s)
- Dexi Bi
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Yin Zhu
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Yaohui Gao
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Hao Li
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Xingchen Zhu
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Rong Wei
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Ruting Xie
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Qing Wei
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Huanlong Qin
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| |
Collapse
|
6
|
Chen XF, Hou X, Xiao M, Zhang L, Cheng JW, Zhou ML, Huang JJ, Zhang JJ, Xu YC, Hsueh PR. Matrix-Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry (MALDI-TOF MS) Analysis for the Identification of Pathogenic Microorganisms: A Review. Microorganisms 2021; 9:microorganisms9071536. [PMID: 34361971 PMCID: PMC8304613 DOI: 10.3390/microorganisms9071536] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/03/2021] [Accepted: 07/10/2021] [Indexed: 12/13/2022] Open
Abstract
Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) has been used in the field of clinical microbiology since 2010. Compared with the traditional technique of biochemical identification, MALDI-TOF MS has many advantages, including convenience, speed, accuracy, and low cost. The accuracy and speed of identification using MALDI-TOF MS have been increasing with the development of sample preparation, database enrichment, and algorithm optimization. MALDI-TOF MS has shown promising results in identifying cultured colonies and rapidly detecting samples. MALDI-TOF MS has critical research applications for the rapid detection of highly virulent and drug-resistant pathogens. Here we present a scientific review that evaluates the performance of MALDI-TOF MS in identifying clinical pathogenic microorganisms. MALDI-TOF MS is a promising tool in identifying clinical microorganisms, although some aspects still require improvement.
Collapse
Affiliation(s)
- Xin-Fei Chen
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China; (X.-F.C.); (X.H.); (M.X.); (L.Z.); (M.-L.Z.); (J.-J.H.); (J.-J.Z.)
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing 100730, China
| | - Xin Hou
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China; (X.-F.C.); (X.H.); (M.X.); (L.Z.); (M.-L.Z.); (J.-J.H.); (J.-J.Z.)
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing 100730, China
| | - Meng Xiao
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China; (X.-F.C.); (X.H.); (M.X.); (L.Z.); (M.-L.Z.); (J.-J.H.); (J.-J.Z.)
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing 100730, China
| | - Li Zhang
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China; (X.-F.C.); (X.H.); (M.X.); (L.Z.); (M.-L.Z.); (J.-J.H.); (J.-J.Z.)
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing 100730, China
| | - Jing-Wei Cheng
- Center of Clinical Laboratory, Beijing Friendship Hospital, Capital Medical University, Beijing 100053, China;
| | - Meng-Lan Zhou
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China; (X.-F.C.); (X.H.); (M.X.); (L.Z.); (M.-L.Z.); (J.-J.H.); (J.-J.Z.)
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing 100730, China
| | - Jing-Jing Huang
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China; (X.-F.C.); (X.H.); (M.X.); (L.Z.); (M.-L.Z.); (J.-J.H.); (J.-J.Z.)
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing 100730, China
| | - Jing-Jia Zhang
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China; (X.-F.C.); (X.H.); (M.X.); (L.Z.); (M.-L.Z.); (J.-J.H.); (J.-J.Z.)
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing 100730, China
| | - Ying-Chun Xu
- Department of Laboratory Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China; (X.-F.C.); (X.H.); (M.X.); (L.Z.); (M.-L.Z.); (J.-J.H.); (J.-J.Z.)
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing 100730, China
- Correspondence: (Y.-C.X.); (P.-R.H.)
| | - Po-Ren Hsueh
- Departments of Laboratory Medicine and Internal Medicine, China Medical University Hospital, School of Medicine, China Medical University, Taichung 40447, Taiwan;
- Departments of Laboratory Medicine and Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei 100, Taiwan
- Correspondence: (Y.-C.X.); (P.-R.H.)
| |
Collapse
|
7
|
Dekio I, Sugiura Y, Hamada-Tsutsumi S, Murakami Y, Tamura H, Suematsu M. What Do We See in Spectra?: Assignment of High-Intensity Peaks of Cutibacterium and Staphylococcus Spectra of MALDI-TOF Mass Spectrometry by Interspecies Comparative Proteogenomics. Microorganisms 2021; 9:microorganisms9061243. [PMID: 34201063 PMCID: PMC8227259 DOI: 10.3390/microorganisms9061243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 11/16/2022] Open
Abstract
Matrix-assisted laser-desorption/ionization time-of-flight (MALDI–TOF) mass spectrometry is a widely used and reliable technology to identify microbial species and subspecies. The current methodology is based on spectral fingerprinting, analyzing protein peaks, most of which are yet to be characterized. In order to deepen the understanding of these peaks and to develop a more reasonable identification workflow, we applied proteogenomic approaches to assign the high-intensity peaks of MALDI–TOF spectra of two bacterial genera. First, the 3–22 kD proteomes of 5 Cutibacterium strains were profiled by UPLC–MS/MS, and the amino acid sequences were refined by referring to their genome in the public database. Then, the sequences were converted to m/z (x-axis) values based on their molecular masses. When the interspecies comparison of calculated m/z values was well-fitted to the observed peaks, the peak assignments for the five Cutibacterium species were confirmed. Second, the peak assignments for six Staphylococcus species were performed by using the above result for Cutibacterium and referring to ribosomal subunit proteins coded on the S10-spc-alpha operon (the S10-GERMS method), a previous proteomics report by Becher et al., and comprehensive genome analysis. We successfully assigned 13 out of 15 peaks for the Cutibacterium species and 11 out of 13 peaks for the Staphylococcus species. DNA-binding protein HU, the CsbD-like protein, and 50S ribosomal protein L7/L12 were observed in common. The commonality suggests they consist of high-intensity peaks in the MALDI spectra of other bacterial species. Our workflow may lead to the development of a more accurate species identification database of MALDI–TOF mass spectrometry based on genome data.
Collapse
Affiliation(s)
- Itaru Dekio
- Department of Biochemistry & Integrative Medical Biology, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; (Y.S.); (M.S.)
- Correspondence: ; Tel.: +81-3-3433-1111 (ext. 3341); Fax: +81-3-5401-0125
| | - Yuki Sugiura
- Department of Biochemistry & Integrative Medical Biology, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; (Y.S.); (M.S.)
| | - Susumu Hamada-Tsutsumi
- Department of Environmental Bioscience, Meijo University, 1-501 Shiogamaguchi, Tenpaku-ku, Nagoya, Aichi 468-8502, Japan; (S.H.-T.); (H.T.)
| | - Yoshiyuki Murakami
- Seikakai Mildix Skin Clinic, 3rd Floor, 3-98 Senju, Adachi-ku, Tokyo 120-0034, Japan;
| | - Hiroto Tamura
- Department of Environmental Bioscience, Meijo University, 1-501 Shiogamaguchi, Tenpaku-ku, Nagoya, Aichi 468-8502, Japan; (S.H.-T.); (H.T.)
| | - Makoto Suematsu
- Department of Biochemistry & Integrative Medical Biology, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; (Y.S.); (M.S.)
| |
Collapse
|
8
|
Tomida J, Akiyama-Miyoshi T, Tanaka K, Hayashi M, Kutsuna R, Fujiwara N, Kawamura Y. Fusobacterium watanabei sp. nov. As additional species within the genus Fusobacerium, isolated from human clinical specimens. Anaerobe 2021; 69:102323. [PMID: 33515720 DOI: 10.1016/j.anaerobe.2021.102323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/12/2021] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Abstract
Eight spindle-shaped bacteria were isolated from clinical samples in Japan and investigated for their taxonomic position. Phylogenetic trees (based on 16S rRNA, rpoB, zinc protease, and gyrB gene sequence comparisons) showed distinct clustering of eight strains with the type strain of Fusobacterium nucleatum and its closely related species. In silico whole genome comparison analysis based on average nucleotide index based on BLAST (ANIb) and digital DNA-DNA hybridization (dDDH) data between our clinical isolates (PAGU 1795, PAGU 1796T, and PAGU 1797) and the type strain of the closely related species showed values of less than 92.4% and 49.5%, respectively. On the basis of its phylogenetic and genomic distinctiveness together with differential phenotypic properties and matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF-MS) characteristic signal patterns, we propose Fusobacterium watanabei sp. nov., with the type strain PAGU 1796T (= GTC 21791T = CCUG 74246T).
Collapse
Affiliation(s)
- Junko Tomida
- Department of Microbiology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Nagoya, Aichi, 464-8650, Japan.
| | - Toru Akiyama-Miyoshi
- Pathogenic Microbe Laboratory, Research Institute, National Center for Global Health and Medicine, Shinjuku, Tokyo, 162-8655, Japan.
| | - Kaori Tanaka
- Division of Anaerobe Research, Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu, Gifu, 501-1194, Japan.
| | - Masahiro Hayashi
- Division of Anaerobe Research, Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu, Gifu, 501-1194, Japan.
| | - Ryo Kutsuna
- Department of Microbiology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Nagoya, Aichi, 464-8650, Japan.
| | - Nagatoshi Fujiwara
- Department of Food and Nutrition, Faculty of Contemporary Human Life Science, Tezukayama University, 3-1-3, Gakuen-Minami, Nara, Naraz, 631-8585, Japan.
| | - Yoshiaki Kawamura
- Department of Microbiology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Nagoya, Aichi, 464-8650, Japan.
| |
Collapse
|
9
|
Janati AI, Karp I, Laprise C, Sabri H, Emami E. Detection of Fusobaterium nucleatum in feces and colorectal mucosa as a risk factor for colorectal cancer: a systematic review and meta-analysis. Syst Rev 2020; 9:276. [PMID: 33272322 PMCID: PMC7716586 DOI: 10.1186/s13643-020-01526-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 11/09/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is a major cause of cancer deaths worldwide. Accumulating evidence suggests a potentially important role of colorectal infection with Fusobacterium nucleatum (F. nucleatum) in colorectal carcinogenesis. We conducted a systematic review, including both a qualitative synthesis and a meta-analysis, to synthesize the evidence from the epidemiological literature on the association between F. nucleatum detection in the colon/rectum and CRC. METHODS A systematic literature search of Ovid MEDLINE(R), Embase, Web of Science Core Collection, EBM Reviews-Cochrane Database of Systematic Reviews, and CINAHL Plus with Full Text was conducted using earliest inclusive dates up to 4 October 2020. Eligible studies were original, comparative observational studies that reported results on colorectal F. nucleatum detection and CRC. Two independent reviewers extracted the relevant information. Odds ratio (OR) estimates were pooled across studies using the random effects model. Newcastle-Ottawa scale was used to critically appraise study quality. RESULTS Twenty-four studies were included in the systematic review, of which 12 were included in the meta-analysis. Studies investigated F. nucleatum in feces, colorectal tissue samples, or both. In most studies included in the systematic review, the load of F. nucleatum was higher, on average, in specimens from CRC patients than in those from CRC-free controls. Meta-analysis showed a positive association between F. nucleatum detection in colorectal specimens and CRC (OR = 8.3; 95% confidence interval (95% CI) 5.2 to 13.0). CONCLUSIONS The results of this systematic review suggest that F. nucleatum in the colon/rectum is associated with CRC. SYSTEMATIC REVIEW REGISTRATION This systematic review protocol has been registered with the International Prospective Register of Systematic Reviews (PROSPERO) on July 10, 2018 (registration number CRD42018095866).
Collapse
Affiliation(s)
| | - Igor Karp
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
- Department of Social and Preventive Medicine, School of Public Health, Université de Montréal, Montreal, Canada
| | - Claudie Laprise
- Faculty of Dentistry, McGill University, 2001 McGill College Avenue, Suite 500, Montreal, QC, H3A 1G1, Canada
| | - Hisham Sabri
- Faculty of Dentistry, McGill University, 2001 McGill College Avenue, Suite 500, Montreal, QC, H3A 1G1, Canada
| | - Elham Emami
- Faculty of Dentistry, McGill University, 2001 McGill College Avenue, Suite 500, Montreal, QC, H3A 1G1, Canada.
| |
Collapse
|
10
|
Richardson M, Ren J, Rubinstein MR, Taylor JA, Friedman RA, Shen B, Han YW. Analysis of 16S rRNA genes reveals reduced Fusobacterial community diversity when translocating from saliva to GI sites. Gut Microbes 2020; 12:1-13. [PMID: 33054632 PMCID: PMC7577115 DOI: 10.1080/19490976.2020.1814120] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 07/22/2020] [Accepted: 08/17/2020] [Indexed: 02/03/2023] Open
Abstract
Fusobacterium nucleatum is a Gram-negative oral commensal anaerobe which has been increasingly implicated in various gastrointestinal (GI) disorders, including inflammatory bowel disease, appendicitis, GI cancers. The oral cavity harbors a diverse group of Fusobacterium, and it is postulated that F. nucleatum in the GI tract originate from the mouth. It is not known, however, if all oral Fusobacterium translocate to the GI sites with equal efficiencies. Therefore, we amplified 16S rRNA genes of F. nucleatum and F. periodonticum, two closely related oral species from matched saliva, gastric aspirates, and colon or ileal pouch aspirates of three patients with inflammatory bowel disease (IBD) and three healthy controls, and saliva alone from seven patients with either active IBD or IBD in remission. The 16S rRNA gene amplicons were cloned, and the DNA sequences determined by Sanger sequencing. The results demonstrate that fusobacterial community composition differs more significantly between the oral and GI sites than between different individuals. The oral communities demonstrate the highest level of variation and have the richest pool of unique sequences, with certain nodes/strains enriched in the GI tract and others diminished during translocation. The gastric and colon/pouch communities exhibit reduced diversity and are more closely related, possibly due to selective pressure in the GI tract. This study elucidates selective translocation of oral fusobacteria to the GI tract. Identification of specific transmissible clones will facilitate risk assessment for developing Fusobacterium-implicated GI disorders.
Collapse
Affiliation(s)
- Miles Richardson
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY, USA
| | - Jihui Ren
- Division of Periodontics, College of Dental Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Mara Roxana Rubinstein
- Division of Periodontics, College of Dental Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Jamila A. Taylor
- Division of Periodontics, College of Dental Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Richard A. Friedman
- Department of Biomedical Informatics, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, New York, NY, USA
- Biomedical Informatics Shared Resource, Herbert Irving Comprehensive Cancer Center, Vagelos Columbia University Irving Medical Center, New York, NY, USA
| | - Bo Shen
- Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH, USA
| | - Yiping W. Han
- Division of Periodontics, College of Dental Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Department of Microbiology, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, New York, NY, USA
- Department of Microbiology, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Medical Center, Columbia University Irving Medical Center, New York, NY, USA
- Institute of Human Nutrition, Columbia University Irving Medicine Center, New York, NY, USA
| |
Collapse
|
11
|
Cairns CM, St Michael F, Fleming P, Vinogradov EV, Cox AD. Structural analysis of the lipopolysaccharide O-antigen from Fusobacterium nucleatum strain CC 7/3 JVN3 C1 and development of a mouse monoclonal antibody specific to the O-antigen. Can J Microbiol 2020; 66:529-534. [PMID: 32396022 DOI: 10.1139/cjm-2020-0117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Fusobacterium nucleatum is becoming increasingly recognised as an emerging pathogen, gaining attention as a potential factor for exacerbating colorectal cancer and is strongly linked with pregnancy complications including pre-term and still births. Little is known about the virulence factors of this organism; thus, we have initiated studies to examine the bacterium's surface glycochemistry. In an effort to characterise the surface carbohydrates of F. nucleatum, the aims of this study were to investigate the structure of the lipopolysaccharide (LPS) O-antigen of the cancer-associated isolate F. nucleatum strain CC 7/3 JVN3 C1 (hereafter C1) and to develop monoclonal antibodies (mAbs) to the LPS O-antigen that may be beneficial to the growing field of F. nucleatum research. In this study, we combined several technologies, including nuclear magnetic resonance (NMR) spectroscopy, to elucidate the structure of the LPS O-antigen repeat unit as -[-4-β-Gal-3-α-FucNAc4N-4-α-NeuNAc-]-. We have previously identified this structure as the LPS O-antigen repeat unit from strain 10953. In this present study, we developed a mAb to the C1 LPS O-antigen and confirmed the mAbs cross-reactivity to the 10953 strain, thus confirming the structural identity.
Collapse
Affiliation(s)
- Chantelle M Cairns
- Vaccine and Emerging Infections Research, Human Health Therapeutics Research Centre, National Research Council, Ottawa, ON K1A 0R6, Canada.,Vaccine and Emerging Infections Research, Human Health Therapeutics Research Centre, National Research Council, Ottawa, ON K1A 0R6, Canada
| | - Frank St Michael
- Vaccine and Emerging Infections Research, Human Health Therapeutics Research Centre, National Research Council, Ottawa, ON K1A 0R6, Canada.,Vaccine and Emerging Infections Research, Human Health Therapeutics Research Centre, National Research Council, Ottawa, ON K1A 0R6, Canada
| | - Perry Fleming
- Vaccine and Emerging Infections Research, Human Health Therapeutics Research Centre, National Research Council, Ottawa, ON K1A 0R6, Canada.,Vaccine and Emerging Infections Research, Human Health Therapeutics Research Centre, National Research Council, Ottawa, ON K1A 0R6, Canada
| | - Evgeny V Vinogradov
- Vaccine and Emerging Infections Research, Human Health Therapeutics Research Centre, National Research Council, Ottawa, ON K1A 0R6, Canada.,Vaccine and Emerging Infections Research, Human Health Therapeutics Research Centre, National Research Council, Ottawa, ON K1A 0R6, Canada
| | - Andrew D Cox
- Vaccine and Emerging Infections Research, Human Health Therapeutics Research Centre, National Research Council, Ottawa, ON K1A 0R6, Canada.,Vaccine and Emerging Infections Research, Human Health Therapeutics Research Centre, National Research Council, Ottawa, ON K1A 0R6, Canada
| |
Collapse
|
12
|
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: 576] [Impact Index Per Article: 144.0] [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.
Collapse
Affiliation(s)
| | - Wendy S Garrett
- Harvard T. H. Chan School of Public Health, Boston, MA, USA.
| |
Collapse
|
13
|
Kostrzewa M, Nagy E, Schröttner P, Pranada AB. How MALDI-TOF mass spectrometry can aid the diagnosis of hard-to-identify pathogenic bacteria - the rare and the unknown. Expert Rev Mol Diagn 2019; 19:667-682. [PMID: 31303071 DOI: 10.1080/14737159.2019.1643238] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Introduction: Ten years after its introduction into clinical microbiology, MALDI-TOF mass spectrometry has become the standard routine identification tool for bacteria in most laboratories. The technology has accelerated analyses and improved the quality of results. The greatest significance has been observed for bacteria that were challenging to be identified by traditional methods. Areas covered: We searched in existing literature (Pubmed) for reports how MALDI-TOF MS has contributed to identification of rare and unknown bacteria from different groups. We describe how this has improved the diagnostics in different groups of bacteria. Reference patterns for strains which yet cannot be assigned to a known species even enable the search for related bacteria in studies as well as in routine diagnostics. MALDI-TOF MS can help to discover and investigate new species and their clinical relevance. It is a powerful tool in the elucidation of the bacterial composition of complex microbiota in culturomics studies. Expert opinion: MALDI-TOF MS has improved the diagnosis of bacterial infections. It also enables knowledge generation for prospective diagnostics. The term 'hard-to-identify' might only be rarely attributed to bacteria in the future. Novel applications are being developed, e.g. subspecies differentiation, typing, and antibiotic resistance testing which may further contribute to improved microbial diagnostics.
Collapse
Affiliation(s)
- Markus Kostrzewa
- Bioanalytical Development, Bruker Daltonik GmbH , Bremen , Germany
| | - Elisabeth Nagy
- Institute of Clinical Microbiology, University of Szeged , Szeged , Hungary
| | - Percy Schröttner
- Institut für Medizinische Mikrobiologie und Hygiene, Technische Universität Dresden , Dresden , Germany
| | - Arthur B Pranada
- Department of Medical Microbiology, MVZ Dr. Eberhard & Partner Dortmund (ÜBAG) , Dortmund , Germany
| |
Collapse
|
14
|
Immunological Pathways Triggered by Porphyromonas gingivalis and Fusobacterium nucleatum: Therapeutic Possibilities? Mediators Inflamm 2019; 2019:7241312. [PMID: 31341421 PMCID: PMC6612971 DOI: 10.1155/2019/7241312] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/28/2019] [Accepted: 05/19/2019] [Indexed: 02/06/2023] Open
Abstract
Porphyromonas gingivalis (P. gingivalis) and Fusobacterium nucleatum (F. nucleatum) are Gram-negative anaerobic bacteria possessing several virulence factors that make them potential pathogens associated with periodontal disease. Periodontal diseases are chronic inflammatory diseases of the oral cavity, including gingivitis and periodontitis. Periodontitis can lead to tooth loss and is considered one of the most prevalent diseases worldwide. P. gingivalis and F. nucleatum possess virulence factors that allow them to survive in hostile environments by selectively modulating the host's immune-inflammatory response, thereby creating major challenges to host cell survival. Studies have demonstrated that bacterial infection and the host immune responses are involved in the induction of periodontitis. The NLRP3 inflammasome and its effector molecules (IL-1β and caspase-1) play roles in the development of periodontitis. We and others have reported that the purinergic P2X7 receptor plays a role in the modulation of periodontal disease and intracellular pathogen control. Caspase-4/5 (in humans) and caspase-11 (in mice) are important effectors for combating bacterial pathogens via mediation of cell death and IL-1β release. The exact molecular events of the host's response to these bacteria are not fully understood. Here, we review innate and adaptive immune responses induced by P. gingivalis and F. nucleatum infections and discuss the possibility of manipulations of the immune response as therapeutic strategies. Given the global burden of periodontitis, it is important to develop therapeutic targets for the prophylaxis of periodontopathogen infections.
Collapse
|
15
|
Pérez-Sancho M, Vela AI, Horcajo P, Ugarte-Ruiz M, Domínguez L, Fernández-Garayzábal JF, de la Fuente R. Rapid differentiation of Staphylococcus aureus subspecies based on MALDI-TOF MS profiles. J Vet Diagn Invest 2018; 30:813-820. [PMID: 30280650 DOI: 10.1177/1040638718805537] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Staphylococcus aureus encompasses 2 subspecies ( aureus and anaerobius) with significant differences in their epidemiology and pathogenicity. We evaluated the suitability of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) for the rapid identification of both subspecies using a panel of 52 S. aureus isolates (30 subsp. anaerobius and 22 subsp. aureus) recovered from different origins, countries, and years. The on-board library identification system correctly identified 42 of 52 (81%) S. aureus isolates at the species level with score values >2.0. Limited performance was observed for differentiation of S. aureus subspecies (particularly subsp. anaerobius). Visual inspection of MALDI-TOF MS profiles identified 5 subspecies-specific mass peaks ( m/ z 3430 and 6861 in S. aureus subsp. anaerobius, and m/ z 4046, 6890, and 8093 in S. aureus subsp. aureus) with 100% sensitivity and specificity values, which is potentially useful for differentiating these subspecies. The suitability of 3 models, Genetic Analysis (GA), Quick Classifier (QC), and Supervised Neural Network, for automatic identification of both subspecies was evaluated using the Recognition Capability (RC) and Cross Validation (CV) values provided by the on-board ClinProTools software. The GA and QC models reached RC and CV values of 100%. Both models were externally validated using a panel of 26 S. aureus isolates of both subspecies, with both models correctly classifying all isolates of both subspecies. MALDI-TOF MS coupled with ClinProTools software represents a rapid and simple approach for S. aureus subspecies discrimination.
Collapse
Affiliation(s)
- Marta Pérez-Sancho
- VISAVET Health Surveillance Centre (Pérez-Sancho, Vela, Ugarte-Ruiz, Fernández-Garayzábal, Domínguez), Complutense University, Madrid, Spain.,Animal Health Department, Veterinary Faculty (Vela, Horcajo, Fernández-Garayzábal, Domínguez, de la Fuente), Complutense University, Madrid, Spain
| | - Ana I Vela
- VISAVET Health Surveillance Centre (Pérez-Sancho, Vela, Ugarte-Ruiz, Fernández-Garayzábal, Domínguez), Complutense University, Madrid, Spain.,Animal Health Department, Veterinary Faculty (Vela, Horcajo, Fernández-Garayzábal, Domínguez, de la Fuente), Complutense University, Madrid, Spain
| | - Pilar Horcajo
- VISAVET Health Surveillance Centre (Pérez-Sancho, Vela, Ugarte-Ruiz, Fernández-Garayzábal, Domínguez), Complutense University, Madrid, Spain.,Animal Health Department, Veterinary Faculty (Vela, Horcajo, Fernández-Garayzábal, Domínguez, de la Fuente), Complutense University, Madrid, Spain
| | - María Ugarte-Ruiz
- VISAVET Health Surveillance Centre (Pérez-Sancho, Vela, Ugarte-Ruiz, Fernández-Garayzábal, Domínguez), Complutense University, Madrid, Spain.,Animal Health Department, Veterinary Faculty (Vela, Horcajo, Fernández-Garayzábal, Domínguez, de la Fuente), Complutense University, Madrid, Spain
| | - Lucas Domínguez
- VISAVET Health Surveillance Centre (Pérez-Sancho, Vela, Ugarte-Ruiz, Fernández-Garayzábal, Domínguez), Complutense University, Madrid, Spain.,Animal Health Department, Veterinary Faculty (Vela, Horcajo, Fernández-Garayzábal, Domínguez, de la Fuente), Complutense University, Madrid, Spain
| | - José F Fernández-Garayzábal
- VISAVET Health Surveillance Centre (Pérez-Sancho, Vela, Ugarte-Ruiz, Fernández-Garayzábal, Domínguez), Complutense University, Madrid, Spain.,Animal Health Department, Veterinary Faculty (Vela, Horcajo, Fernández-Garayzábal, Domínguez, de la Fuente), Complutense University, Madrid, Spain
| | - Ricardo de la Fuente
- VISAVET Health Surveillance Centre (Pérez-Sancho, Vela, Ugarte-Ruiz, Fernández-Garayzábal, Domínguez), Complutense University, Madrid, Spain.,Animal Health Department, Veterinary Faculty (Vela, Horcajo, Fernández-Garayzábal, Domínguez, de la Fuente), Complutense University, Madrid, Spain
| |
Collapse
|
16
|
Ma CT, Luo HS, Gao F, Tang QC, Chen W. Fusobacterium nucleatum promotes the progression of colorectal cancer by interacting with E-cadherin. Oncol Lett 2018; 16:2606-2612. [PMID: 30013655 PMCID: PMC6036566 DOI: 10.3892/ol.2018.8947] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 12/15/2017] [Indexed: 02/06/2023] Open
Abstract
Increasing evidence suggests that Fusobacterium nucleatum is involved in colorectal carcinogenesis. Previous studies have explored whether F. nucleatum may trigger colonic epithelial-mesenchymal transition. The results of the present study demonstrated that F. nucleatum enhances the proliferation and invasion of NCM460 cells compared with that of normal control and DH5α cells. Furthermore, F. nucleatum significantly increased the phosphorylation of p65 (a subunit of nuclear factor-κB), as well as the expression of interleukin (IL)-6, IL-1β and matrix metalloproteinase (MMP)-13. Additionally, F. nucleatum infection did not affect the expression levels of epithelial (E-)cadherin and β-catenin. E-cadherin knockdown in NCM460 cells did not induce the activation of inflammatory responses in response to F. nucleatum infection, whereas it increased inflammation in response to β-catenin silencing. F. nucleatum infection could not increase the proportion of cells at S phase when E-cadherin was silenced. Nevertheless, F. nucleatum infection enhanced the proportion of NCM460 cells at S phase when transfected with small interfering RNAs to knock down β-catenin expression. In conclusion, the results of the present study demonstrated that F. nucleatum infection interacted with E-cadherin instead of β-catenin, which in turn enhances the malignant phenotype of colorectal cancer cells.
Collapse
Affiliation(s)
- Chun-Ting Ma
- Department of Gastroenterology, RenMin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - He-Sheng Luo
- Department of Gastroenterology, RenMin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
- Correspondence to: Dr He-Sheng Luo, Department of Gastroenterology, RenMin Hospital of Wuhan University, 9 Zhang Zhidong Road, Wuhan, Hubei 430060, P.R. China, E-mail:
| | - Feng Gao
- Department of Gastroenterology, The People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang 8320001, P.R. China
| | - Qin-Cai Tang
- Department of Gastroenterology, RenMin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Wei Chen
- Department of Gastroenterology, RenMin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| |
Collapse
|
17
|
Sex-specific differences in the occurrence of Fusobacterium nucleatum subspecies and Fusobacterium periodonticum in the oral cavity. Oncotarget 2018; 9:20631-20639. [PMID: 29755677 PMCID: PMC5945502 DOI: 10.18632/oncotarget.25042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 03/22/2018] [Indexed: 01/01/2023] Open
Abstract
The periodontitis-associated species Fusobacterium nucleatum (FN) has been implicated in several extra-oral diseases, including preterm birth and colorectal cancer. Due to its genetic and phenotypic heterogeneity, FN is classified in four subspecies which may differ in their disease potential. Here we compared the prevalence of FN subspecies and the close relative F. periodonticum (FP) via 16S rRNA gene analysis in saliva from 100 healthy individuals (60 females, and 40 males) from eleven countries spanning five continents. By focusing on the most abundant sequence types (i.e. analysis of approximately ten clone sequences each) the average number of FN/FP subspecies per individual differed significantly between females and males, i.e. 2.93 versus 2.5, respectively (P = 0.043). FN subsp. fusiforme/vincentii was significantly more prevalent in females vs males, with 2.85 vs. 1.68 sequence reads per individual, respectively (P = 0.012). A significant age-related difference was observed in females but not in males, i.e. 2.6 subspecies on average in females ≤ 30 years vs. 3.2 in females > 30 (P = 0.0076). Given the link between FN and systemic disorders our findings highlight the need for microbial studies at the subspecies level to further characterize the role of periodontal pathogens in diseases that affect females and males differently, e.g. colorectal cancer.
Collapse
|
18
|
Vinogradov E, St Michael F, Homma K, Sharma A, Cox AD. Structure of the LPS O-chain from Fusobacterium nucleatum strain 10953, containing sialic acid. Carbohydr Res 2017; 440-441:38-42. [PMID: 28199859 DOI: 10.1016/j.carres.2017.01.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 01/26/2017] [Accepted: 01/26/2017] [Indexed: 01/09/2023]
Abstract
Fusobacterium nucleatum is an anaerobic bacterium found in the human mouth where it causes periodontitis. Recently, it has been gaining attention as a potential causative agent for colorectal cancer and is strongly linked with pregnancy complications including pre-term and still births. Little is known about virulence factors of this organism and thus we have initiated studies to examine the bacterial surface glycochemistry. Consistent with a recent paper suggesting that F. nucleatum strain 10593 can synthesize sialic acid, a staining technique identified sialic acid on the bacterial surface. We isolated lipopolysaccharide from this F. nucleatum strain and performed structural analysis on the O-antigen. Our studies identified a trisaccharide repeating unit of the O-antigen with the following structure: -[→4)-α-Neup5Ac-(2 → 4)-β-d-Galp-(1 → 3)-α-d-FucpNAc4NAc-(1-]- where Ac indicates 4-N-acetylation of ∼30% FucNAc4N residues. The presence of sialic acid as a constituent of the O-antigen is consistent with recent data identifying de novo sialic acid synthesis in this strain.
Collapse
Affiliation(s)
- Evgeny Vinogradov
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, ON, K1A 0R6, Canada.
| | - Frank St Michael
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, ON, K1A 0R6, Canada
| | - Kiyonobu Homma
- Department of Oral Biology, University at Buffalo, Buffalo, NY, 14214, USA
| | - Ashu Sharma
- Department of Oral Biology, University at Buffalo, Buffalo, NY, 14214, USA
| | - Andrew D Cox
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, ON, K1A 0R6, Canada
| |
Collapse
|
19
|
Vinogradov E, St Michael F, Cox AD. The structure of the LPS O-chain of Fusobacterium nucleatum strain 25586 containing two novel monosaccharides, 2-acetamido-2,6-dideoxy-l-altrose and a 5-acetimidoylamino-3,5,9-trideoxy-gluco-non-2-ulosonic acid. Carbohydr Res 2017; 440-441:10-15. [PMID: 28135570 DOI: 10.1016/j.carres.2017.01.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 01/05/2017] [Accepted: 01/06/2017] [Indexed: 12/25/2022]
Abstract
Fusobacterium nucleatum is an anaerobic bacterium found in the human mouth where it causes periodontitis. Recently, it has been gaining attention as a potential causative agent for colorectal cancer and is strongly linked with pregnancy complications including pre-term and still births. Little is known about the virulence factors of this organism, and thus we have initiated studies to examine the bacterium's surface glycochemistry. We isolated lipopolysaccharide (LPS) from F. nucleatum strain 25586 and purified and performed structural analysis on the O-antigen polysaccharide. The polysaccharide contained two novel sugars, 2-acetamido-2,6-dideoxy-l-altrose (l-6dAltNAc) and a 5-acetimidoylamino-3,5,9-trideoxy-gluco-non-2-ulosonic acid (Non5Am), which was tentatively assigned the l-glycero-l-gluco configuration. The polysaccharide was found to have a trisaccharide repeating unit, which is phosphorylated with phosphocholine (PCho), and the following structure was established: -[-4-β-Nonp5Am-4-α-l-6dAltpNAc3PCho-3-β-d-QuipNAc-]- We propose the trivial name 'fusaminic acid' for the novel nonulosonic acid. It is the first occurrence of a 9-deoxynonulosonic acid with a hydroxyl group at C-7, which is occupied by an amino group in all monosaccharides of this class described so far.
Collapse
Affiliation(s)
- Evgeny Vinogradov
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, ON K1A 0R6, Canada.
| | - Frank St Michael
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, ON K1A 0R6, Canada
| | - Andrew D Cox
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, ON K1A 0R6, Canada
| |
Collapse
|