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| http://dx.doi.org/10.1093/af/vfy003 | DOI Listing |
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Bacterium-Phage Symbiosis Facilitates the Enrichment of Bacterial Pathogens and Antibiotic-Resistant Bacteria in the Plastisphere.
Environ Sci Technol
January 2025
College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
The plastisphere, defined as the ecological niche for microbial colonization of plastic debris, has been recognized as a hotspot of pathogenic and antibiotic-resistant bacteria. However, the interactions between bacteria and phages facilitated by the plastisphere, as well as their impact on microbial risks to public health, remain unclear. Here, we analyzed public metagenomic data from 180 plastisphere and environmental samples, stemming from four different habitats and two plastic types (biodegradable and nonbiodegradable plastics) and obtained 611 nonredundant metagenome-assembled genomes (MAGs) and 4061 nonredundant phage contigs.
View Article and Find Full Text PDFSLO co-opts host cell glycosphingolipids to access cholesterol-rich lipid rafts for enhanced pore formation and cytotoxicity.
mBio
January 2025
Division of Infectious Diseases, Boston Children's Hospital, Boston, Massachusetts, USA.
Unlabelled: Streptolysin O (SLO) is a virulence determinant of group A (), the agent of streptococcal sore throat and severe invasive infections. SLO is a member of a family of bacterial pore-forming toxins known as cholesterol-dependent cytolysins, which require cell membrane cholesterol for pore formation. While cholesterol is essential for cytolytic activity, accumulating data suggest that cell surface glycans may also participate in the binding of SLO and other cholesterol-dependent cytolysins to host cells.
View Article and Find Full Text PDFAntimicrobial and Antiproliferative Properties of 2-Phenyl-N-(Pyridin-2-yl)acetamides.
Chem Biol Drug Des
January 2025
Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic.
Infectious diseases, including bacterial, fungal, and viral, have once again gained urgency in the drug development pipeline after the recent COVID-19 pandemic. Tuberculosis (TB) is an old infectious disease for which eradication has not yet been successful. Novel agents are required to have potential activity against both drug-sensitive and drug-resistant strains of Mycobacterium tuberculosis (Mtb), the causative agent of TB.
View Article and Find Full Text PDFFrom Antibacterial Activity to Molecular Mechanism: Case Study of Hexapeptide RWWRWW and Its Analogues.
Chembiochem
January 2025
Southeast University, School of Biological Science and Medical Engineering, 2 Sipailou, Xuanwu District, 210096, Nanjing, CHINA.
In recent years, antimicrobial peptides (AMPs) have emerged as a potent weapon against the growing threat of antibiotic resistance. Among AMPs, the ones containing tryptophan (W) and arginine (R) exhibit enhanced antimicrobial properties, benefiting from the unique physicochemical features of the two amino acids. Herein, we designed three hexapeptides, including WR, DWR (D-isomer), and RF, derived from the original sequence, RWWRWW-NH2 (RW).
View Article and Find Full Text PDFRobust Diagnosis of Acute Bacterial and Viral Infections via Host Gene Expression Rank-Based Ensemble Machine Learning Algorithm: A Multi-Cohort Model Development and Validation Study.
Clin Chem
January 2025
Department of Laboratory Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Background: The accurate and prompt diagnosis of infections is essential for improving patient outcomes and preventing bacterial drug resistance. Host gene expression profiling as an approach to infection diagnosis holds great potential in assisting early and accurate diagnosis of infection.
Methods: To improve the precision of infection diagnosis, we developed InfectDiagno, a rank-based ensemble machine learning algorithm for infection diagnosis via host gene expression patterns.
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