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The use of antibiotics can disrupt the body's natural balance and increase the susteptibility of patients towards fungal infections. Candida albicans is a dimorphic opportunistic fungal pathogen with niches similar to those of bacteria. Our aim was to study the interaction between this pathogen and bacteria to facilitate the control of C. albicans infection. Alpha-hemolysin (Hla), a protein secreted from Staphylococcus aureus, causes cell wall damage and impedes the yeast-hyphae transition in C. albicans. Mechanistically, Hla stimulation triggered the formation of reactive oxygen species that damaged the cell wall and mitochondria of C. albicans. The cell cycle was arrested in the G0/G1 phase, CDC42 was downregulated, and Ywp1 was upregulated, disrupting yeast hyphae switching. Subsequently, hyphae development was inhibited. In mouse models, C. albicans pretreated with Hla reduced the C. albicans burden in skin and vaginal mucosal infections, suggesting that S. aureus Hla can inhibit hyphal development and reduce the pathogenicity of candidiasis in vivo.
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http://dx.doi.org/10.1007/s12275-022-00006-4 | DOI Listing |
Electrophoresis
September 2025
Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, and Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, People's Republic of China.
Foodborne pathogenic bacteria always threaten human health. Flavonoids are commonly used in antibacterial applications. Studying the antibacterial effect of flavonoids on bacteria is significant.
View Article and Find Full Text PDFTurk J Pharm Sci
September 2025
İstanbul University Faculty of Pharmacy, Department of Pharmaceutical Chemistry, İstanbul, Türkiye.
Objectives: This study focused on synthesizing and characterizing novel thiosemicarbazide derivatives containing a 1,2,4-triazole moiety and evaluating their antimicrobial activity against several bacterial strains. The research aimed to identify key structural features that enhance antimicrobial efficacy through structure-activity relationship analysis and identify the minimum inhibitory concentration (MIC) of the most potent compounds to assess their potential for further development as antimicrobial agents.
Materials And Methods: Nine novel thiosemicarbazide derivatives containing a 1,2,4-triazole moiety were synthesized by reacting 1,2,4-triazole derivatives with thiosemicarbazide precursors, and the products were characterized using infrared spectroscopy, proton nuclear magnetic resonance (H-NMR), carbon-13 nuclear magnetic resonance (C-NMR) spectroscopy, and elemental analysis.
Pestic Biochem Physiol
November 2025
Institute of Entomology, Guizhou University, Guizhou Key Laboratory of Agricultural Biosecurity, Guiyang 550025, China.
The Toll signaling pathway serves as a crucial regulatory mechanism in the insect innate immune system, playing a pivotal role in defending against pathogenic microorganisms. However, the specific functions of aphids' unique immune system and Toll signaling pathway remain poorly understood. In this study, we systematically analyzed 12 key genes associated with the Toll signaling pathway in Myzus persicae.
View Article and Find Full Text PDFAm J Infect Control
September 2025
Department of Food Science, 745 Agricultural Mall Drive, Purdue University, West Lafayette, IN USA 47907. Electronic address:
Background: Manual wiping of surfaces, a primary method in preventing hospital acquired infections, can vary significantly in its ability to eliminate bacteria and prevent cross-contamination.
Methods: Four liquid-based cleaning and disinfecting formulations comprised of hydrogen peroxide (HP), ethoxylated alcohol (EA), quaternary ammonium compounds (Quat and Quat2), or a water-based control were evaluated for their bactericidal efficacy in combination with three different wiping materials: microfiber, polypropylene, and cotton. Each chemistry and wipe combination were evaluated for its ability to reduce microbial contamination on a hard, non-porous surface measuring one meter.
Eur J Pharm Sci
September 2025
Department of Organic Chemistry, University of Debrecen, P.O. Box 400, H-4002 Debrecen, Hungary. Electronic address:
Platinum-group metal half-sandwich complexes are considered to be potential replacements of the clinically widely used platins which have several side effects and tend to cause resistance to develop. In our previous works, we used a range of 2-pyridyl-substituted N- and C-glycosyl heterocycles as N,N-chelating ligands to prepare ruthenium(II), osmium(II), iridium(III) and rhodium(III) polyhapto arene/arenyl half-sandwich complexes. Some of these complexes, particularly with the C-glucopyranosyl isoxazole derived ligand in its O-perbenzoylated form, exhibited greater anticancer efficiency than cisplatin and had minimal or negligible effects on non-transformed fibroblasts.
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