AUTHOR=Ferraz-Amaro Iván , Santos-Concepción Sergio , Castro-Hernández Javier , Hernández-Hernández Maria Vanesa , Tejera Segura Beatriz , Luna Cristina , Delgado-Frias Esmeralda , Díaz-González Federico TITLE=Tocilizumab modulates the activity of the classical and alternative complement pathways in rheumatoid arthritis patients JOURNAL=Frontiers in Immunology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1486588 DOI=10.3389/fimmu.2025.1486588 ISSN=1664-3224