title: The Presage(®) ST2 Assay: analytical considerations and clinical applications for a high-sensitivity assay for measurement of soluble ST2.
abstract: The Presage(®) ST2 Assay (Critical Diagnostics, CA, USA) is an in vitro diagnostic device that quantitatively measures soluble suppression of tumorigenicity 2 (sST2) in serum and plasma by ELISA. This assay is US FDA approved and is indicated to be used in conjunction with clinical evaluation as an aid in assessing the prognosis of patients diagnosed with chronic heart failure. sST2 binds to IL-33 and functions as a 'decoy' receptor for IL-33, thereby attenuating the systemic effects of IL-33. Due to the role of IL-33/transmembrane isoform of suppression of tumorigenicity 2 signaling in cardiac remodeling, sST2 has emerged as a novel cardiovascular biomarker. In recent studies, it was shown that sST2 is a valuable predictor of several end points in heart failure, in acute coronary syndromes and in critically ill patients. In this review, analytical considerations and clinical applications of the Presage ST2 Assay will be discussed, as well as probable future concepts for adoption of sST2 measurements into clinical practice.
authors.affiliation: Department of Laboratory Medicine, Konventhospital Barmherzige Brueder, Seilerstaette 2-4, A-4020 Linz, Austria. thomas.mueller@bs-lab.at
authors.forename: Thomas
authors.initials: T
authors.lastname: Mueller
authors.forename: Benjamin
authors.initials: B
authors.lastname: Dieplinger
mesh_terms: D015415:Biomarkers / Q000097:blood; D006333:Heart Failure / Q000175:diagnosis* / Q000401:mortality; D006801:Humans; D000072179:Interleukin-1 Receptor-Like 1 Protein; D000067596:Interleukin-33; D007378:Interleukins / Q000378:metabolism; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000401:mortality; D011379:Prognosis; D011956:Receptors, Cell Surface / Q000097:blood* / Q000378:metabolism; D012680:Sensitivity and Specificity; D015398:Signal Transduction
chemical_list: D015415:Biomarkers; C079241:IL1RL1 protein, human; C506536:IL33 protein, human; D000072179:Interleukin-1 Receptor-Like 1 Protein; D000067596:Interleukin-33; D007378:Interleukins; D011956:Receptors, Cell Surface