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Lunger C, Shen Z, Holcombe H, Mannion AJ, Dzink-Fox J, Kurnick S, Feng Y, Muthupalani S, Carrasco SE, Wilson KT, Peek RM, Piazuelo MB, Morgan DR, Armijo AL, Mammoliti M, Wang TC, Fox JG. Gastric coinfection with thiopeptide-positive Cutibacterium acnes decreases FOXM1 and pro-inflammatory biomarker expression in a murine model of Helicobacter pylori-induced gastric cancer. Microbiol Spectr 2024; 12:e0345023. [PMID: 38014984 PMCID: PMC10783005 DOI: 10.1128/spectrum.03450-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 10/19/2023] [Indexed: 11/29/2023] Open
Abstract
IMPORTANCE H. pylori infects half of the world population and is the leading cause of gastric cancer. We previously demonstrated that gastric cancer risk is associated with gastric microbiota. Specifically, gastric urease-positive Staphylococcus epidermidis and Streptococcus salivarius had contrasting effects on H. pylori-associated gastric pathology and immune responses in germ-free INS-GAS mice. As gastritis progresses to gastric cancer, the oncogenic transcription factor Foxm1 becomes increasingly expressed. In this study, we evaluated the gastric commensal C. acnes, certain strains of which produce thiopeptides that directly inhibit FOXM1. Thiopeptide-positive C. acnes was isolated from Nicaraguan patient gastric biopsies and inoculated into germ-free INS-GAS mice with H. pylori. We, therefore, asked whether coinfection with C. acnes expressing thiopeptide and H. pylori would decrease gastric Foxm1 expression and pro-inflammatory cytokine mRNA and protein levels. Our study supports the growing literature that specific non-H. pylori gastric bacteria affect inflammatory and cancer biomarkers in H. pylori pathogenesis.
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Affiliation(s)
- Courtney Lunger
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Zeli Shen
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Hilda Holcombe
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Anthony J. Mannion
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - JoAnn Dzink-Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Susanna Kurnick
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Yan Feng
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Sureshkumar Muthupalani
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Sebastian E. Carrasco
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Keith T. Wilson
- Division of Gastroenterology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Richard M. Peek
- Division of Gastroenterology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - M. Blanca Piazuelo
- Division of Gastroenterology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Douglas R. Morgan
- Division of Gastroenterology and Hepatology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Amanda L. Armijo
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Melissa Mammoliti
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Timothy C. Wang
- Division of Gastroenterology and Irvine Cancer Research Center, Columbia University, New York, New York, USA
| | - James G. Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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