title: ProteoMiner™ and SELDI-TOF-MS: a robust and highly reproducible combination for biomarker discovery from whole blood serum.
abstract: Surface-enhanced laser desorption ionization time of flight mass spectrometry (SELDI-TOF-MS) has been recognized as an appropriate technology for biomarker discovery. Nevertheless, whenever human blood serum is studied, its sensitivity is restricted due to the wide dynamic range of serum protein concentrations. In this context, sample pre-fractionation targeting the low abundant proteins may help to overcome these limitations. Here, we evaluate the combination of ProteoMiner™ pre-fractionation and SELDI based protein profiling. We introduce a simplified workflow and demonstrate the high sensitivity and reproducibility of this combined profiling approach. Our analyses show that this combination is suitable for large-scale serum proteome profiling studies yielding reliable and reproducible results.
authors.affiliation: Department of Clinical Biochemistry and Pathobiochemistry, Heinrich-Heine-University, Leibniz Centre for Diabetes Research, Düsseldorf, Germany. julia.froebel@med.uni-duesseldorf.de
authors.forename: Julia
authors.initials: J
authors.lastname: Fröbel
authors.forename: Sonja
authors.initials: S
authors.lastname: Hartwig
authors.forename: Waltraud
authors.initials: W
authors.lastname: Passlack
authors.forename: Jürgen
authors.initials: J
authors.lastname: Eckel
authors.forename: Rainer
authors.initials: R
authors.lastname: Haas
authors.forename: Akos
authors.initials: A
authors.lastname: Czibere
authors.forename: Stefan
authors.initials: S
authors.lastname: Lehr
mesh_terms: D015415:Biomarkers / Q000097:blood / Q000737:chemistry; D001798:Blood Proteins / Q000032:analysis; D005591:Chemical Fractionation / Q000379:methods*; D015180:Electrophoresis, Gel, Two-Dimensional; D006801:Humans; D007091:Image Processing, Computer-Assisted; D040081:Protein Array Analysis / Q000379:methods; D020543:Proteome / Q000032:analysis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*; D013223:Statistics as Topic
chemical_list: D015415:Biomarkers; D001798:Blood Proteins; D020543:Proteome