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Université de Fribourg

β-Arrestin1 and β-Arrestin2 are required to support the activity of the CXCL12/HMGB1 heterocomplex on CXCR4

D’Agostino, Gianluca ; Artinger, Marc ; Locati, Massimo ; Perez, Laurent ; Legler, Daniel F. ; Bianchi, Marco E. ; Rüegg, Curzio ; Thelen, Marcus ; Marchese, Adriano ; Rocchi, Marco B. L. ; Cecchinato, Valentina ; Uguccioni, Mariagrazia

In: Frontiers in Immunology, 2020, vol. 11, p. -

The chemokine receptor CXCR4 plays a fundamental role in homeostasis and pathology by orchestrating recruitment and positioning of immune cells, under the guidance of a CXCL12 gradient. The ability of chemokines to form heterocomplexes, enhancing their function, represents an additional level of regulation on their cognate receptors. In particular, the multi-faceted activity of the...

Università della Svizzera italiana

Modulation of chemokine responses : synergy and cooperativity

Proudfoot, Amanda E.I. ; Uguccioni, Mariagrazia

In: Frontiers in immunology, 2016, vol. 7, p. 183

Chemokine biology is mediated by more complex interactions than simple monomolecular ligand–receptor interactions, as chemokines can form higher order quaternary structures, which can also be formed after binding to glycosaminoglycans (GAGs) on endothelial cells, and their receptors are found as dimers and/or oligomers at the cell surface. Due to the complexity of the chemokine binding and...

Università della Svizzera italiana

Molecularly specific detection of bacterial lipoteichoic acid for diagnosis of prosthetic joint infection of the bone

Pickett, Julie E. ; Thompson, John M. ; Sadowska, Agnieszka ; Tkaczyk, Christine ; Sellman, Bret R. ; Minola, Andrea ; Corti, Davide ; Lanzavecchia, Antonio ; Miller, Lloyd S. ; Thorek, Daniel LJ

In: Bone research, 2018, vol. 6, p. 13

Discriminating sterile inflammation from infection, especially in cases of aseptic loosening versus an actual prosthetic joint infection, is challenging and has significant treatment implications. Our goal was to evaluate a novel human monoclonal antibody (mAb) probe directed against the Gram-positive bacterial surface molecule lipoteichoic acid (LTA). Specificity and affinity were assessed in...

Consortium of Swiss Academic Libraries

Radiolabelled GLP-1 receptor antagonist binds to GLP-1 receptor-expressing human tissues

Waser, Beatrice ; Reubi, Jean

In: European Journal of Nuclear Medicine and Molecular Imaging, 2014, vol. 41, no. 6, p. 1166-1171