Impaired response of blood neutrophils to cell-death stimulus differentiates AQP4-IgG-seropositive NMOSD from MOGAD

Maria Schroeder-Castagno, Alba Del Rio-Serrato, Andreas Wilhelm, Silvina Romero-Suárez, Patrick Schindler, Cesar Alvarez-González, Ankelien-Solveig Duchow, Judith Bellmann-Strobl, Klemens Ruprecht, Maria Hastermann, Gerald Grütz, Brigitte Wildemann, Sven Jarius, Tanja Schmitz-Hübsch, Friedemann Paul & Carmen Infante-Duarte
Abstract Background In neuromyelitis optica spectrum disorders (NMOSD) and myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD), neutrophils are found in CNS lesions. We previously demonstrated that NMOSD neutrophils show functional deficiencies. Thus, we hypothesized that neutrophil accumulation in the CNS may be facilitated by impairments affecting mechanisms of neutrophil death. Objective To evaluate cell death in blood neutrophils from aquaporin-4 (AQP4)-IgG-seropositive NMOSD and MOGAD patients as well as matched healthy controls (HC) using in vitro assays....
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