title: Application of proteomics and protein analysis for biomarker and target finding for immunotherapy.
abstract: Regulatory T-cells play a central role in the maintenance of the immunological balance and are powerful inhibitors of T-cell activation both in vivo and in vitro. The enhancement of suppressor-cell function might be a target for immunotherapeutic approaches for the treatment of immune-mediated diseases like multiple sclerosis and Crohn's disease.The method of choice to elucidate the still unclear effector functions of regulatory T-cells is the differential proteome analyses performed with human and murine T-cell populations. To this end, whole-protein extracts of conventional and regulatory T-cells are separated by high-resolution two-dimensional gel electrophoresis according to Klose. The proteomes are analyzed by a 2DE gel image analysis software, ProteomWeaver. The protein spots that are found differentially expressed are picked from the gels and prepared for matrix-assisted laser desorption/ionization (MALDI) mass spectrometrical analysis automatically. The high-resolution 2DE-PAGE and the automated spot handling and protein identification allows one to rapidly find new potential candidate proteins that are of functional relevance for regulatory T-cells, to be used as targets for drug development or as biomarkers for research and diagnostic purposes.
authors.affiliation: Protagen AG, Dortmund, Germany.
authors.forename: Petra
authors.initials: P
authors.lastname: Weingarten
authors.forename: Petra
authors.initials: P
authors.lastname: Lutter
authors.forename: Andreas
authors.initials: A
authors.lastname: Wattenberg
authors.forename: Martin
authors.initials: M
authors.lastname: Blueggel
authors.forename: Sonja
authors.initials: S
authors.lastname: Bailey
authors.forename: Joachim
authors.initials: J
authors.lastname: Klose
authors.forename: Helmut E
authors.initials: HE
authors.lastname: Meyer
authors.forename: Christoph
authors.initials: C
authors.lastname: Huels
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D015415:Biomarkers / Q000032:analysis; D002021:Buffers; D030562:Databases, Protein; D004591:Electrophoresis, Polyacrylamide Gel; D006801:Humans; D007167:Immunotherapy / Q000379:methods*; D007525:Isoelectric Focusing; D008969:Molecular Sequence Data; D011506:Proteins / Q000032:analysis* / Q000737:chemistry / Q000276:immunology / Q000378:metabolism*; D020543:Proteome / Q000032:analysis / Q000276:immunology / Q000378:metabolism; D040901:Proteomics / Q000379:methods*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D013194:Staining and Labeling
chemical_list: D015415:Biomarkers; D002021:Buffers; D011506:Proteins; D020543:Proteome