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The bacterial cell wall, a sophisticated and dynamic structure predominantly composed of peptidoglycan (PG), plays a pivotal role in bacterial survival and adaptation. Bacteria actively modify their cell walls by editing PG components in response to environmental challenges. Diverse variations in peptide composition, cross-linking patterns, and glycan strand structures empower bacteria to resist antibiotics, evade host immune detection, and adapt to dynamic environments. This review comprehensively summarizes the most common modifications reported to date and their associated adaptive role and further highlights how regulation of PG synthesis and turnover provides resilience to cell lysis.
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http://dx.doi.org/10.1042/BST20230027 | DOI Listing |
Cornea
September 2025
Department of Ophthalmology, University of California Los Angeles, Los Angeles, CA.
Purpose: To evaluate visual outcomes after bacterial keratitis (BK) and identify predictive factors for poor prognosis at a tertiary referral center in Southern California.
Methods: This is a cross-sectional retrospective review of patients' medical records with culture-positive BK at University of California Los Angeles from January 1, 2014, to December 31, 2019. Main outcome measure was change in best-corrected visual acuity (BCVA) at 12 weeks posttreatment.
PLoS One
September 2025
Department of Information Technology, Uppsala University, Uppsala, Sweden.
For effective treatment of bacterial infections, it is essential to identify the species causing the infection as early as possible. Current methods typically require hours of overnight culturing of a bacterial sample and a larger quantity of cells to function effectively. This study uses one-hour phase-contrast time-lapses of single-cell bacterial growth collected from microfluidic chip traps, also known as a "mother machine".
View Article and Find Full Text PDFPLoS Pathog
September 2025
Department of Molecular, Cellular and Developmental Biology, University of California, Santa Cruz, California, United States of America.
The discovery of the endosymbiotic bacteria Wolbachia as an obligate symbiont of. filarial nematodes has led to antibiotic-based treatments for filarial diseases. While lab.
View Article and Find Full Text PDFPLoS Pathog
September 2025
State Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
Hepatocyte nuclear factor 4 alpha (Hnf4α), a conserved nuclear receptor central to vertebrate liver development and metabolic regulation, emerges here as a pivotal immune regulator in teleosts against complex infectious threats. While its metabolic roles are well-established, Hnf4α's function in bacterial infection, viral infection, and bacterial-viral coinfection-major challenges in global aquaculture-remained uncharacterized. This study reveals that teleost Hnf4α acts as a dual-functional immune checkpoint, essential for combating Aeromonas salmonicida, grass carp reovirus (GCRV), and their coinfection.
View Article and Find Full Text PDFACS Infect Dis
September 2025
Animal-Derived Food Safety Innovation Team, College of Veterinary Medicine, Anhui Agricultural University, Hefei 230036, China.
The emergence of multidrug-resistant (MDR) poses a significant threat to global public health, necessitating alternative therapeutic strategies. In this study, we isolated and characterized a novel lytic bacteriophage (phage), vB_EcoM_51, from poultry farm sewage and evaluated its potential against MDR . Transmission electron microscopy revealed that the phage exhibits morphological features typical of the family, including a polyhedral head (∼66.
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