Biomarkers of treatment toxicity in combined-modality cancer therapies with radiation and systemic drugs: Study design, multiplex methods, molecular networks

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Abstract

Organ toxicity in cancer therapy is likely caused by an underlying disposition for given pathophysiological mechanisms in the individual patient. Mechanistic data on treatment toxicity at the patient level are scarce; hence, probabilistic and translational linkages among different layers of data information, all the way from cellular targets of the therapeutic exposure to tissues and ultimately the patient’s organ systems, are required. Throughout all of these layers, untoward treatment effects may be viewed as perturbations that propagate within a hierarchically structured network from one functional level to the next, at each level causing disturbances that reach a critical threshold, which ultimately are manifested as clinical adverse reactions. Advances in bioinformatics permit compilation of information across the various levels of data organization, presumably enabling integrated systems biology-based prediction of treatment safety. In view of the complexity of biological responses to cancer therapy, this communication reports on a “top-down” strategy, starting with the systematic assessment of adverse effects within a defined therapeutic context and proceeding to transcriptomic and proteomic analysis of relevant patient tissue samples and computational exploration of the resulting data, with the ultimate aim of utilizing information from functional connectivity networks in evaluation of patient safety in multimodal cancer therapy.

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Ree, A. H., Meltzer, S., Flatmark, K., Dueland, S., & Kalanxhi, E. (2014, December 9). Biomarkers of treatment toxicity in combined-modality cancer therapies with radiation and systemic drugs: Study design, multiplex methods, molecular networks. International Journal of Molecular Sciences. MDPI AG. https://doi.org/10.3390/ijms151222835

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