BACKGROUND: IL-23 is a cytokine produced by dendritic cells, T-cells and macrophages that plays a critical regulatory role in the inflammatory and autoimmune responses. We describe the development and preclinical validation of a highly sensitive Luminex(®) assay specific to IL-23 that is suitable for its measurement in support of early-phase clinical trials. RESULTS: Intra-assay precision for the BioSource™ ELISA was under 12.3%, and under 5.2% for the eBioscience(®) ELISA. In comparison, the Luminex assays provided an intra-assay precision under 6.2%. The measured inter-assay precision was less than 15.6% for the BioSource ELISA, under 33% for the eBioscience and less than 10% for the Luminex assays. CONCLUSIONS: The Luminex method described provides a way to measure IL-23 in clinical samples either as a single biomarker or as a panel of biomarkers. The assay should prove useful to scientists and clinicians investigating the biology of IL-23 and to those needing to monitor changes in IL-23 as part of a clinical study.
BACKGROUND:IL-23 is a cytokine produced by dendritic cells, T-cells and macrophages that plays a critical regulatory role in the inflammatory and autoimmune responses. We describe the development and preclinical validation of a highly sensitive Luminex(®) assay specific to IL-23 that is suitable for its measurement in support of early-phase clinical trials. RESULTS: Intra-assay precision for the BioSource™ ELISA was under 12.3%, and under 5.2% for the eBioscience(®) ELISA. In comparison, the Luminex assays provided an intra-assay precision under 6.2%. The measured inter-assay precision was less than 15.6% for the BioSource ELISA, under 33% for the eBioscience and less than 10% for the Luminex assays. CONCLUSIONS: The Luminex method described provides a way to measure IL-23 in clinical samples either as a single biomarker or as a panel of biomarkers. The assay should prove useful to scientists and clinicians investigating the biology of IL-23 and to those needing to monitor changes in IL-23 as part of a clinical study.
Authors: Carlota Dobaño; Marta Vidal; Rebeca Santano; Alfons Jiménez; Jordi Chi; Diana Barrios; Gemma Ruiz-Olalla; Natalia Rodrigo Melero; Carlo Carolis; Daniel Parras; Pau Serra; Paula Martínez de Aguirre; Francisco Carmona-Torre; Gabriel Reina; Pere Santamaria; Alfredo Mayor; Alberto L García-Basteiro; Luis Izquierdo; Ruth Aguilar; Gemma Moncunill Journal: J Clin Microbiol Date: 2021-01-21 Impact factor: 5.948