title: Application of mass spectrometry-based proteomics techniques for the detection of protein doping in sports.
abstract: Mass spectrometry-based proteomic approaches have been used to develop methodologies capable of detecting the abuse of protein therapeutics such as recombinant human erythropoietin and recombinant human growth hormone. Existing detection methods use antibody-based approaches that, although effective, suffer from long assay development times and specificity issues. The application of liquid chromatography with tandem mass spectrometry and selected reaction-monitoring-based analysis has demonstrated the ability to detect and quantify existing protein therapeutics in plasma. Furthermore, the multiplexing capability of selected reaction-monitoring analysis has also aided in the detection of multiple downstream biomarkers in a single analysis, requiring less sample than existing immunological techniques. The flexibility of mass spectrometric instrumentation has shown that the technique is capable of detecting the abuse of novel and existing protein therapeutics, and has a vital role in the fight to keep sports drug-free.
authors.affiliation: HFL Sport Science, Quotient Bioresearch Ltd, Fordham, Cambridgeshire CB7 5WW, UK. richard.kay@quotientbioresearch.com
authors.forename: Richard G
authors.initials: RG
authors.lastname: Kay
authors.forename: Colin S
authors.initials: CS
authors.lastname: Creaser
mesh_terms: D002853:Chromatography, Liquid; D004300:Doping in Sports / Q000517:prevention & control*; D004921:Erythropoietin / Q000097:blood; D019382:Human Growth Hormone / Q000097:blood; D006801:Humans; D013058:Mass Spectrometry / Q000379:methods*; D040901:Proteomics / Q000379:methods*; D011994:Recombinant Proteins
chemical_list: D011994:Recombinant Proteins; D004921:Erythropoietin; D019382:Human Growth Hormone