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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...