title: Troponin as a marker of myocardiac damage in drug-induced cardiotoxicity.
abstract: Cardiac troponins T and I (cTnT and cTnI) are becoming the serum biomarkers of choice for monitoring potential drug-induced myocardial injury in both clinical and preclinical studies. The utility of cardiac troponins has been mainly demonstrated following the administration of antineoplastic drugs and beta-sympathomimetics, although the routine use of these markers in the monitoring in patients who received anthracyclines therapy is far from settled. Unlike the previous markers, which suffered from numerous shortages, the main advantages of cardiac troponins are their high specificity and sensitivity, wide diagnostic window and the possibility to use commercially available assays in clinical settings as well as in a broad range of laboratory animals. Nevertheless, in spite of vigorous research in this area, a number of questions are still unanswered and these are discussed in this review. The main problems seem to be the lack of standardisation of variety of troponin immunoassays, the assessment of suitable cutoff for drug-induced cardiotoxicity and determination of critical diagnostic window related to the optimal timing of sample collection, which may be drug-dependent.
authors.affiliation: Department of Physiology, Charles University in Prague, Faculty of Medicine, Simkova 870, 500 38, Hradec Králové, Czech Republic. adamcova@lfhk.cuni.cz
authors.forename: Michaela
authors.initials: M
authors.lastname: Adamcova
authors.forename: Martin
authors.initials: M
authors.lastname: Sterba
authors.forename: Tomas
authors.initials: T
authors.lastname: Simunek
authors.forename: Anna
authors.initials: A
authors.lastname: Potacova
authors.forename: Olga
authors.initials: O
authors.lastname: Popelova
authors.forename: Yvona
authors.initials: Y
authors.lastname: Mazurova
authors.forename: Vladimir
authors.initials: V
authors.lastname: Gersl
mesh_terms: D004353:Drug Evaluation, Preclinical; D006321:Heart / Q000187:drug effects*; D006801:Humans; D007118:Immunoassay; D012016:Reference Values; D012680:Sensitivity and Specificity; D018675:Toxicity Tests; D019210:Troponin I / Q000032:analysis*; D020107:Troponin T / Q000032:analysis*
chemical_list: D019210:Troponin I; D020107:Troponin T