Urine and serum S100A8/A9 and S100A12 associate with active lupus nephritis and may predict response to rituximab treatment

Autor: Ian N Bruce, Christian M Hedrich, Michael W Beresford, Jennifer C Davies, Angela Midgley, Emil Carlsson, Sean Donohue
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: RMD Open, Vol 6, Iss 2 (2020)
Druh dokumentu: article
ISSN: 2056-5933
DOI: 10.1136/rmdopen-2020-001257
Popis: Background Approximately 30% of patients with the systemic autoimmune/inflammatory disorder systemic lupus erythematosus (SLE) develop lupus nephritis (LN) that affects treatment and prognosis. Easily accessible biomarkers do not exist to reliably predict renal disease. The Maximizing SLE Therapeutic Potential by Application of Novel and Systemic Approaches and the Engineering Consortium aims to identify indicators of treatment responses in SLE. This study tested the applicability of calcium-binding S100 proteins in serum and urine as biomarkers for disease activity and response to treatment with rituximab (RTX) in LN.Methods S100A8/A9 and S100A12 proteins were quantified in the serum and urine of 243 patients with SLE from the British Isles Lupus Assessment Group Biologics Register (BILAG-BR) study and 48 controls matched for age using Meso Scale Discovery’s technology to determine whether they perform as biomarkers for active LN and/or may be used to predict response to treatment with RTX. Renal disease activity and response to treatment was based on BILAG-BR scores and changes in response to treatment.Results Serum S100A12 (p
Databáze: Directory of Open Access Journals