Selectins impair regulatory T cell function and contribute to systemic lupus erythematosus pathogenesis

Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by a loss of tolerance toward self-nucleic acids, autoantibody production, interferon expression and signaling, and a defect in the regulatory T (T reg ) cell compartment. In this work, we identified that platelets from patients with active SLE preferentially interacted with T reg cells via the P-selectin/P-selectin glycoprotein ligand-1 (PSGL-1) axis. Selectin...