Abstract. Tian Q, Price ND, Hood L (Institute for Systems Biology, Seattle, WA, USA). Systems cancer medicine: towards realization of predictive, preventive, personalized and participatory (P4) medicine (Key Symposium). J Intern Med 2012; 271: 111–121.A grand challenge impeding optimal treatment outcomes for patients with cancer arises from the complex nature of the disease: the cellular heterogeneity, the myriad of dysfunctional molecular and genetic networks as results of genetic (somatic) and environmental perturbations. Systems biology, with its holistic approach to understanding fundamental principles in biology, and the empowering technologies in genomics, proteomics, single‐cell analysis, microfluidics and computational strategies, enables a comprehensive approach to medicine, which strives to unveil the pathogenic mechanisms of diseases, identify disease biomarkers and begin thinking about new strategies for drug target discovery. The integration of multidimensional high‐throughput ‘omics’ measurements from tumour tissues and corresponding blood specimens, together with new systems strategies for diagnostics, enables the identification of cancer biomarkers that will enable
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