Pseudomonas aeruginosa is a prevalent opportunistic human pathogen, particularly associated with cystic fibrosis. Among its virulence factors are the LecA and LecB lectins. Both lectins play an important role in the adhesion to the host cells and display cytotoxic activity. In this study, we successfully synthesized hardly hydrolysable carbohydrate ligands targeting these pathogenic lectins, including two bispecific glycans. The interactions between LecA/LecB lectins and synthetic glycans were evaluated using hemagglutination (yeast agglutination) inhibition assays, comparing their efficacy with corresponding monosaccharides. Additionally, the binding affinities of bispecific glycans were assessed using isothermal titration calorimetry (ITC). Structural insight into the lectin-ligand interaction was obtained by determining the crystal structures of LecA/LecB lectins in complex with one of the bispecific ligands using X ray crystallography. This comprehensive investigation into the inhibitory potential of synthetic glycosides against P. aeruginosa lectins sheds light on their potential application in antimicrobial therapy.

• Klíčová slova
• Agglutination, Inhibition, Lectins, Pseudomonas aeruginosa, Synthetic carbohydrates,
• MeSH
• bakteriální adheziny * chemie   metabolismus   MeSH
• disacharidy * chemie   farmakologie   MeSH
• krystalografie rentgenová MeSH
• lektiny * chemie   antagonisté a inhibitory   metabolismus   MeSH
• lidé MeSH
• ligandy MeSH
• polysacharidy chemie   MeSH
• Pseudomonas aeruginosa * chemie   metabolismus   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• bakteriální adheziny * MeSH
• disacharidy * MeSH
• LecA protein, bacteria MeSH Prohlížeč
• LecB protein, Pseudomonas aeruginosa MeSH Prohlížeč
• lektiny * MeSH
• ligandy MeSH
• polysacharidy MeSH