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Targeted inhibition of PqsR in Pseudomonas aeruginosa PAO1 quorum-sensing network by chalcones as promising antibacterial compounds.
Mol Biol Rep
January 2025
Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
Background: Pseudomonas aeruginosa's inherent and adapted resistance makes this pathogen a serious problem for antimicrobial treatments. Furthermore, its biofilm formation ability is the most critical armor against antimicrobial therapy, and the virulence factors, on the other hand, contribute to fatal infection and other recalcitrant phenotypic characteristics. These capabilities are harmonized through cell-cell communication called Quorum Sensing (QS), which results in gene expression regulation via three major interconnected circuits: las, rhl, and pqs system.
View Article and Find Full Text PDFRole of glycosylation in bacterial resistance to carbapenems.
World J Microbiol Biotechnol
January 2025
School of Medicine, Faculty of Life Science & Medicine, Northwest University, Xi'an, China.
Carbapenems are a class of β-lactam antibacterial drugs with a broad antibacterial spectrum and strong activity, commonly used to treat serious bacterial infections. However, improper or excessive use of carbapenems can lead to increased bacterial resistance, which is a significant concern as they are often used as last resort for treating multidrug-resistant (MDR) gram-negative bacteria. Confronted with this challenge, it is crucial to comprehensively understand the mechanism of carbapenem resistance to develop effective therapeutic strategies and innovative drugs.
View Article and Find Full Text PDFCrude Antibiotics and Antifungal Metabolites from Chaetomium globosum Cg6 Suppress Pythium aphanidermatum, Causal Agent of Rhizome Rot of Turmeric.
Curr Microbiol
January 2025
Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, 641003, India.
Turmeric is affected by various phytopathogens, which cause huge economic losses to farmers. In the present study, ten isolates of Pythium spp. were isolated from infected turmeric rhizomes and characterized.
View Article and Find Full Text PDFFunctional characterization of novel anti-DEFA5 monoclonal antibody clones 1A8 and 4F5 in inflammatory bowel disease colitis tissues.
Inflamm Res
January 2025
Department of Biochemistry, Cancer Biology, Neuroscience, and Pharmacology, School of Medicine, Meharry Medical College, 1005 D.B. Todd Jr. Blvd, Nashville, TN, USA.
Background: The aberrant expression of α defensin 5 (DEFA5) protein in colonic inflammatory bowel diseases (IBDs) underlies the distinct pathogenesis of Crohn's colitis (CC). It can serve as a biomarker for differentiating CC from Ulcerative colitis (UC), particularly in Indeterminate colitis (IC) cases into UC and CC. We evaluated the specificity of commercially available anti-DEFA5 antibodies, emphasizing the need to further validate their appropriateness for a given application and highlighting the necessity for novel antibodies.
View Article and Find Full Text PDFCdr1 in focus: a personal reflection on multidrug transporter research.
FEMS Yeast Res
January 2025
Amity Institute of Integrative Science and Health, Amity University Haryana, Gurugram, 122413, India.
Drug resistance mechanisms in human pathogenic Candida species are constantly evolving. Over time, these species have developed diverse strategies to counter the effects of various drug classes, making them a significant threat to human health. In addition to well-known mechanisms such as drug target modification, overexpression, and chromosome duplication, Candida species have also developed permeability barriers to antifungal drugs through reduced drug import or increased efflux.
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