title: Proteomics: from single molecules to biological pathways.
abstract: The conventional reductionist approach to cardiovascular research investigates individual candidate factors or linear signalling pathways but ignores more complex interactions in biological systems. The advent of molecular profiling technologies that focus on a global characterization of whole complements allows an exploration of the interconnectivity of pathways during pathophysiologically relevant processes, but has brought about the issue of statistical analysis and data integration. Proteins identified by differential expression as well as those in protein-protein interaction networks identified through experiments and through computational modelling techniques can be used as an initial starting point for functional analyses. In combination with other '-omics' technologies, such as transcriptomics and metabolomics, proteomics explores different aspects of disease, and the different pillars of observations facilitate the data integration in disease-specific networks. Ultimately, a systems biology approach may advance our understanding of cardiovascular disease processes at a 'biological pathway' instead of a 'single molecule' level and accelerate progress towards disease-modifying interventions.
authors.affiliation: King's British Heart Foundation Centre, King's College London, 125 Coldharbour Lane, London SE5 9NU, UK.
authors.forename: Sarah R
authors.initials: SR
authors.lastname: Langley
authors.forename: Joseph
authors.initials: J
authors.lastname: Dwyer
authors.forename: Ignat
authors.initials: I
authors.lastname: Drozdov
authors.forename: Xiaoke
authors.initials: X
authors.lastname: Yin
authors.forename: Manuel
authors.initials: M
authors.lastname: Mayr
mesh_terms: D002853:Chromatography, Liquid; D006801:Humans; D055432:Metabolomics; D011506:Proteins / Q000032:analysis; D040901:Proteomics / Q000379:methods*; D049490:Systems Biology; D053719:Tandem Mass Spectrometry; D059467:Transcriptome
chemical_list: D011506:Proteins