Fusobacterium nucleatum is an anaerobic oral commensal and a periodontal pathogen associated with a wide spectrum of human diseases. This article reviews its implication in adverse pregnancy outcomes (chorioamnionitis, preterm birth, stillbirth, neonatal sepsis, preeclampsia), GI disorders (colorectal cancer, inflammatory bowel disease, appendicitis), cardiovascular disease, rheumatoid arthritis, respiratory tract infections, Lemierre's syndrome and Alzheimer's disease. The virulence mechanisms involved in the diseases are discussed, with emphasis on its colonization, systemic dissemination, and induction of host inflammatory and tumorigenic responses. The FadA adhesin/invasin conserved in F. nucleatum is a key virulence factor and a potential diagnostic marker for F. nucleatum-associated diseases.
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http://dx.doi.org/10.1016/j.mib.2014.11.013 | DOI Listing |
Eur J Case Rep Intern Med
December 2024
Respiratory Department, Barnsley District General Hospital, Barnsley, UK.
Unlabelled: A 16-year-old man presented to the Accident and Emergence services with a 10-day history of shortness of breath, sore throat, vomiting, diarrhoea, poor oral intake, chest pain, jaundice, diplopia and reduced urine output. He was initially treated for sepsis, however, subsequent imaging and blood cultures confirmed the diagnosis of Lemierre's syndrome (LS). LS, also known as necrobacillosis or post-pharyngitis anaerobic septicaemia is comprised of a triad of metastatic septic emboli secondary to pharyngitis, bacteraemia, and internal jugular vein thrombophlebitis.
View Article and Find Full Text PDFAm J Med Sci
January 2025
University of Arizona College of Medicine - Tucson, AZ, USA; Medical Scientist Training MD-PhD Program, University of Arizona College of Medicine Tucson, AZ, USA. Electronic address:
Cancers of the oral cavity, lip, salivary gland, and oropharynx cause substantial global disease burden. While tobacco-use and alcohol use are highly associated with oral cancers, the rising incidence of disease in patients who do not use tobacco or alcohol points to additional carcinogenic risk factors. Chronic inflammation, disruption of the oral microbiome, and dysbiosis are becoming more widely implicated in the pathogenesis of oral cancer.
View Article and Find Full Text PDFMicroorganisms
December 2024
Oral Care Product Development, The Procter & Gamble Company, Cincinnati, OH 45202, USA.
Various ingredients are utilized to inhibit the growth of harmful bacteria associated with cavities, gum disease, and bad breath. However, the precise mechanisms by which these ingredients affect the oral microbiome have not been fully understood at the molecular level. To elucidate the molecular mechanisms, a high-throughput bacterial transcriptomics study was conducted, and the gene expression profiles of six common oral bacteria, including two Gram-positive bacteria (, ) and four Gram-negative bacteria (, , , and ), were analyzed.
View Article and Find Full Text PDFBiomedicines
December 2024
Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran.
The gut microbiota plays a crucial role in modulating anticancer immunity, significantly impacting the effectiveness of various cancer therapies, including immunotherapy, chemotherapy, and radiotherapy. Its impact on the development of cancer is complex; certain bacteria, like and , can stimulate the growth of tumors by causing immunological evasion and inflammation, while advantageous strains, like , have the ability to suppress tumors by modifying immune responses. Cytokine activity and immune system regulation are intimately related.
View Article and Find Full Text PDFJ Oral Microbiol
December 2024
School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
Background And Purpose: F. nucleatum, a gram-negative oral bacteria, is abundant in laryngeal cancer (LC). While specific 14-3-3 proteins act as LC oncogenes, the link between F.
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