RT Journal Article T1 Early restoration of immune and vascular phenotypes in systemic lupus erythematosus and rheumatoid arthritis patients after B cell depletion. A1 Perez-Sanchez, Carlos A1 Cecchi, Irene A1 Barbarroja, Nuria A1 Patiño-Trives, Alejandra M A1 Luque-Tevar, Maria A1 Perez-Sanchez, Laura A1 Ibañez-Costa, Alejandro A1 Arias de la Rosa, Ivan A1 Ortega, Rafaela A1 Escudero, Alejandro A1 Castro, María Carmen A1 Radin, Massimo A1 Roccatello, Dario A1 Sciascia, Savino A1 Aguirre, Maria Angeles A1 Collantes, Eduardo A1 Lopez-Pedrera, Chary K1 NETosis K1 endothelial dysfunction K1 inflammation K1 rheumatoid arthritis K1 rituximab K1 systemic lupus erythematosus AB This translational multi-centre study explored early changes in serologic variables following B lymphocyte depletion by rituximab (RTX) treatment in systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) patients and investigated in vitro effects on the activity of other immune cells and the vascular endothelium. Eighty-five SLE patients, seventy-five RA patients and ninety healthy donors were enrolled. Two additional cohorts of selected SLE and RA patients were treated with RTX for 3 months. Changes in circulating levels of inflammatory mediators, oxidative stress markers and NETosis-derived bioproducts were evaluated. Serum miRNomes were identified by next-generation sequencing, and RTX-induced changes were delineated. Mechanistic in vitro studies were performed to assess activity profiles. Altered inflammatory, oxidative and NETosis-derived biomolecules were found in SLE and RA patients, closely interconnected and associated to specific miRNA profiles. RTX treatment reduced SLE and RA patients' disease activity, linked to a prominent alteration in those biomolecules and the reversal of altered regulating miRNAs. In vitro studies showed inhibition of NETosis and decline of pro-inflammatory profiles of leucocytes and human umbilical vein endothelial cells (HUVECs) after B cell depletion. This study provides evidence supporting an early RTX-induced re-setting of the pro-inflammatory status in SLE and RA, involving a re-establishment of the homeostatic equilibrium in immune system and the vascular wall. PB Wiley-Blackwell Publishing Ltd. YR 2019 FD 2019-06-04 LK http://hdl.handle.net/10668/14310 UL http://hdl.handle.net/10668/14310 LA en NO érez-Sánchez C, Cecchi I, Barbarroja N, Patiño-Trives AM, Luque-Tévar M, Pérez-Sánchez L, Ibáñez-Costa A, Arias de la Rosa I, Ortega R, Escudero A, Castro MC, Radin M, Roccatello D, Sciascia S, Aguirre MÁ, Collantes E, et al. Early restoration of immune and vascular phenotypes in systemic lupus erythematosus and rheumatoid arthritis patients after B cell depletion. J Cell Mol Med. 2019 Sep;23(9):6308-6318 DS RISalud RD Apr 5, 2025