RT Conference Proceedings T1 MASS CYTOMETRY DATA RECLASSIFY SYSTEMIC AUTOIMMUNE DISEASE PATIENTS IN PHENOTYPICALLY DISTINCTIVE GROUPS A1 Rybakowska, P. A1 van Gassen, S. A1 Perez-Sanchez, C. A1 Ibanez-Costa, A. A1 Varela, N. A1 Castro, R. Ortega A1 Fernandez-Roldan, C. A1 Jimenez-Moleon, I. A1 Ortego, N. A1 Raya, E. A1 Quesada, R. Aguilar A1 Lopez-Pedrera, C. A1 Estevez, E. Collantes A1 Saeys, Y. A1 Alarcon-Riquelme, M. A1 Maranon, C. K1 Antiphospholipid syndrome K1 Mixed connective tissue disease K1 Undifferentiated connective tissue diseases K1 Proteomics AB Systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), systemic sclerosis (SSC), Sjögren’s syndrome (SJS), mixed connective tissue disease (MCTD), primary antiphospholipid syndrome (PAPS) and undifferentiated connective tissue disease (UCTD) are classified as systemic autoimmune diseases (SADs). They are diagnosed based on different clinical and laboratory criteria. Due to their high internal heterogeneity and overlapping symptoms, SADs are difficult to diagnose. Therefore, molecular and cellular-based studies need to be undertaken to precisely classify the patients. Mass cytometry is a single-cell proteomics technology that measures approximately 50 markers per cell, thus it is a suitable tool to perform deep-phenotyping studies in SADs. PB BMJ Group SN 0003-4967 YR 2022 FD 2022-06-01 LK http://hdl.handle.net/10668/20061 UL http://hdl.handle.net/10668/20061 LA en DS RISalud RD Apr 6, 2025