|
1
|
Singh V, West G, Fiocchi C, Cominelli F, Good CE, Jacobs MR, Rodriguez-Palacios A. Genomes of Bacteroides ovatus, B. cellulosilyticus, B. uniformis, Phocaeicola vulgatus, and P. dorei isolated from gut cavernous fistulous tract micropathologies in Crohn's disease. Microbiol Resour Announc 2024; 13:e0115223. [PMID: 38411071 PMCID: PMC11008141 DOI: 10.1128/mra.01152-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/22/2024] [Indexed: 02/28/2024] Open
Abstract
Surgically removed bowels from Crohn's disease patients exhibit a novel form of micropathologies known as cavernous fistulous tract microlesions (CavFT), resembling fissures. We announce the genomes/plasmids and antimicrobial resistance genes of six CavFT bacterial isolates representing the Bacteroidota genera Bacteroides and Phocaeicola. Plasmids were identified in Bacteroides cellulosilyticus and Phocaeicola vulgatus.
Collapse
Affiliation(s)
- Vaidhvi Singh
- Division of Gastroenterology and Liver Disease, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Digestive Health Research Institute, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Gail West
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Claudio Fiocchi
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Fabio Cominelli
- Division of Gastroenterology and Liver Disease, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Digestive Health Research Institute, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- University Hospitals Research and Education Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Caryn E. Good
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Michael R. Jacobs
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Alexander Rodriguez-Palacios
- Division of Gastroenterology and Liver Disease, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Digestive Health Research Institute, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
- Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| |
Collapse
|
|
2
|
Singh V, West G, Fiocchi C, Good CE, Katz J, Jacobs MR, Dichosa AEK, Flask C, Wesolowski M, McColl C, Grubb B, Ahmed S, Bank NC, Thamma K, Bederman I, Erokwu B, Yang X, Sundrud MS, Menghini P, Basson AR, Ezeji J, Viswanath SE, Veloo A, Sykes DB, Cominelli F, Rodriguez-Palacios A. Clonal Parabacteroides from Gut Microfistulous Tracts as Transmissible Cytotoxic Succinate-Commensal Model of Crohn's Disease Complications. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.09.574896. [PMID: 38260564 PMCID: PMC10802508 DOI: 10.1101/2024.01.09.574896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Crohn's disease (CD) has been traditionally viewed as a chronic inflammatory disease that cause gut wall thickening and complications, including fistulas, by mechanisms not understood. By focusing on Parabacteroides distasonis (presumed modern succinate-producing commensal probiotic), recovered from intestinal microfistulous tracts (cavernous fistulous micropathologies CavFT proposed as intermediate between 'mucosal fissures' and 'fistulas') in two patients that required surgery to remove CD-damaged ilea, we demonstrate that such isolates exert pathogenic/pathobiont roles in mouse models of CD. Our isolates are clonally-related; potentially emerging as transmissible in the community and mice; proinflammatory and adapted to the ileum of germ-free mice prone to CD-like ileitis (SAMP1/YitFc) but not healthy mice (C57BL/6J), and cytotoxic/ATP-depleting to HoxB8-immortalized bone marrow derived myeloid cells from SAMP1/YitFc mice when concurrently exposed to succinate and extracts from CavFT-derived E. coli , but not to cells from healthy mice. With unique genomic features supporting recent genetic exchange with Bacteroides fragilis -BGF539, evidence of international presence in primarily human metagenome databases, these CavFT Pdis isolates could represent to a new opportunistic Parabacteroides species, or subspecies (' cavitamuralis' ) adapted to microfistulous niches in CD.
Collapse
|