Università della Svizzera italiana

Role of CXCL13 and CCL20 in the recruitment of B cells to inflammatory foci in chronic arthritis

Armas-González, Estefanía ; Domínguez-Luis, María Jesús ; Díaz-Martín, Ana ; Arce-Franco, Mayte ; Castro-Hernández, Javier ; Danelon, Gabriela ; Hernández-Hernández, Vanesa ; Bustabad-Reyes, Sagrario ; Cantabrana, Alberto ; Uguccioni ; Díaz-González, Federico

In: Arthritis research & therapy, 2018, vol. 20, p. 114

Background: B cells exert their pathogenic action in rheumatoid arthritis (RA) locally in the synovium. This study was undertaken to elucidate the chemokines responsible for the recruitment of B cells in the inflamed synovium, taking into account that the rich chemokine milieu present in the synovial tissue can fine-tune modulate discrete chemokine receptors. Methods: Expression levels of...

Università della Svizzera italiana

Redox-mediated mechanisms fuel monocyte responses to CXCL12/HMGB1 in active rheumatoid arthritis

Cecchinato, Valentina ; D'Agostino, Gianluca ; Raeli, Lorenzo ; Nerviani, Alessandra ; Schiraldi, Milena ; Danelon, Gabriela ; Manzo, Antonio ; Thelen, Marcus ; Ciurea, Adrian ; Bianchi, Marco E. ; Rubartelli, Anna ; Pitzalis, Costantino ; Uguccioni, Mariagrazia

In: Frontiers in immunology, 2018, vol. 9, p. 2118

Chemokine synergy-inducing molecules are emerging as regulating factors in cell migration. The alarmin HMGB1, in its reduced form, can complex with CXCL12 enhancing its activity on monocytes via the chemokine receptor CXCR4, while the form containing a disulfide bond, by binding to TLR2 or TLR4, initiates a cascade of events leading to production of cytokines and chemokines. So far, the...