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Abed J, Maalouf N, Manson AL, Earl AM, Parhi L, Emgård JEM, Klutstein M, Tayeb S, Almogy G, Atlan KA, Chaushu S, Israeli E, Mandelboim O, Garrett WS, Bachrach G. Colon Cancer-Associated Fusobacterium nucleatum May Originate From the Oral Cavity and Reach Colon Tumors via the Circulatory System. Front Cell Infect Microbiol 2020; 10:400. [PMID: 32850497 PMCID: PMC7426652 DOI: 10.3389/fcimb.2020.00400] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 06/29/2020] [Indexed: 12/16/2022] Open
Abstract
Fusobacterium nucleatum is a common oral bacterium that is enriched in colorectal adenomas and adenocarcinomas (CRC). In humans, high fusobacterial CRC abundance is associated with chemoresistance and poor prognosis. In animal models, fusobacteria accelerate CRC progression. Targeting F. nucleatum may reduce fusobacteria cancer progression and therefore determining the origin of CRC F. nucleatum and the route by which it reaches colon tumors is of biologic and therapeutic importance. Arbitrarily primed PCR performed previously on matched same-patients CRC and saliva F. nucleatum isolates, suggested that CRC F. nucleatum may originate from the oral cavity. However, the origin of CRC fusobacteria as well as the route of their arrival to the tumor have not been well-established. Herein, we performed and analyzed whole genome sequencing of paired, same-patient oral, and CRC F. nucleatum isolates and confirmed that CRC-fusobacteria originate from the oral microbial reservoir. Oral fusobacteria may translocate to CRC by descending via the digestive tract or using the hematogenous route during frequent transient bacteremia caused by chewing, daily hygiene activities, or dental procedures. Using the orthotropic CT26 mouse model we previously showed that IV injected F. nucleatum colonize CRC. Here, we compared CRC colonization by gavage vs. intravenous inoculated F. nucleatum in the MC38 and CT26 mouse orthotropic CRC models. Under the tested conditions, hematogenous fusobacteria were more successful in CRC colonization than gavaged ones. Our results therefore provide evidence that the hematogenous route may be the preferred way by which oral fusobacteria reach colon tumors.
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Affiliation(s)
- Jawad Abed
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.,Department of Orthodontics, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel
| | - Naseem Maalouf
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel
| | - Abigail L Manson
- Infectious Disease & Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, United States
| | - Ashlee M Earl
- Infectious Disease & Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, United States
| | - Lishay Parhi
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel
| | - Johanna E M Emgård
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel
| | - Michael Klutstein
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel
| | - Shay Tayeb
- Department of Biotechnology, Hadassah Academic College, Jerusalem, Israel
| | - Gideon Almogy
- Department of General Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Karine A Atlan
- Department of Pathology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Stella Chaushu
- Department of Orthodontics, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel
| | - Eran Israeli
- Department of Gastroenterology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Ofer Mandelboim
- Department of Immunology and Cancer Research, Institute for Medical Research Israel Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Wendy S Garrett
- Infectious Disease & Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, United States.,Department of Immunology and Infectious Diseases and Molecular Metabolism, Harvard T. H. Chan School of Public Health, Boston, MA, United States.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Gilad Bachrach
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel
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Abed J, Emgård JEM, Zamir G, Faroja M, Almogy G, Grenov A, Sol A, Naor R, Pikarsky E, Atlan KA, Mellul A, Chaushu S, Manson AL, Earl AM, Ou N, Brennan CA, Garrett WS, Bachrach G. Fap2 Mediates Fusobacterium nucleatum Colorectal Adenocarcinoma Enrichment by Binding to Tumor-Expressed Gal-GalNAc. Cell Host Microbe 2017; 20:215-25. [PMID: 27512904 DOI: 10.1016/j.chom.2016.07.006] [Citation(s) in RCA: 440] [Impact Index Per Article: 62.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 06/01/2016] [Accepted: 07/13/2016] [Indexed: 12/12/2022]
Abstract
Fusobacterium nucleatum is associated with colorectal cancer and promotes colonic tumor formation in preclinical models. However, fusobacteria are core members of the human oral microbiome and less prevalent in the healthy gut, raising questions about how fusobacteria localize to CRC. We identify a host polysaccharide and fusobacterial lectin that explicates fusobacteria abundance in CRC. Gal-GalNAc, which is overexpressed in CRC, is recognized by fusobacterial Fap2, which functions as a Gal-GalNAc lectin. F. nucleatum binding to clinical adenocarcinomas correlates with Gal-GalNAc expression and is reduced upon O-glycanase treatment. Clinical fusobacteria strains naturally lacking Fap2 or inactivated Fap2 mutants show reduced binding to Gal-GalNAc-expressing CRC cells and established CRCs in mice. Additionally, intravenously injected F. nucleatum localizes to mouse tumor tissues in a Fap2-dependent manner, suggesting that fusobacteria use a hematogenous route to reach colon adenocarcinomas. Thus, targeting F. nucleatum Fap2 or host epithelial Gal-GalNAc may reduce fusobacteria potentiation of CRC.
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Affiliation(s)
- Jawad Abed
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem 91120, Israel
| | - Johanna E M Emgård
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem 91120, Israel
| | - Gideon Zamir
- Department of General Surgery, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Mouhammad Faroja
- Department of General Surgery, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Gideon Almogy
- Department of General Surgery, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Amalie Grenov
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem 91120, Israel
| | - Asaf Sol
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem 91120, Israel
| | - Ronit Naor
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem 91120, Israel
| | - Eli Pikarsky
- Department of Immunology and Cancer Research, Institute for Medical Research Israel Canada, Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel; Department of Pathology, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Karine A Atlan
- Department of Pathology, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Anna Mellul
- Department of Pathology, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Stella Chaushu
- Department of Orthodontics, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem 91120, Israel
| | - Abigail L Manson
- Broad Institute of MIT and Harvard University, Cambridge, MA 02141, USA
| | - Ashlee M Earl
- Broad Institute of MIT and Harvard University, Cambridge, MA 02141, USA
| | - Nora Ou
- Departments of Immunology and Infectious Diseases and Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Caitlin A Brennan
- Departments of Immunology and Infectious Diseases and Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Wendy S Garrett
- Broad Institute of MIT and Harvard University, Cambridge, MA 02141, USA; Departments of Immunology and Infectious Diseases and Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA.
| | - Gilad Bachrach
- The Institute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, Jerusalem 91120, Israel.
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