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• W2912016703 endingPage "e0209587" @default.
• W2912016703 startingPage "e0209587" @default.
• W2912016703 abstract "The therapeutic effect of a drug is governed by its pharmacokinetics which determine the downstream pharmacodynamic response within the cellular network. A complete understanding of the drug-effect relationship therefore requires multi-scale models which integrate the properties of the different physiological scales. Computational modelling of these individual scales has been successfully established in the past. However, coupling of the scales remains challenging, although it will provide a unique possibility of mechanistic and holistic analyses of therapeutic outcomes for varied treatment scenarios. We present a methodology to combine whole-body physiologically-based pharmacokinetic (PBPK) models with mechanistic intracellular models of signal transduction in the liver for therapeutic proteins. To this end, we developed a whole-body distribution model of IFN-α in human and a detailed intracellular model of the JAK/STAT signalling cascade in hepatocytes and coupled them at the liver of the whole-body human model. This integrated model infers the time-resolved concentration of IFN-α arriving at the liver after intravenous injection while simultaneously estimates the effect of this dose on the intracellular signalling behaviour in the liver. In our multi-scale physiologically-based pharmacokinetic/pharmacodynamic (PBPK/PD) model, receptor saturation is seen at low doses, thus giving mechanistic insights into the pharmacodynamic (PD) response. This model suggests a fourfold lower intracellular response after administration of a typical IFN-α dose to an individual as compared to the experimentally observed responses in in vitro setups. In conclusion, this work highlights clear differences between the observed in vitro and in vivo drug effects and provides important suggestions for future model-based study design." @default.
• W2912016703 created "2019-02-21" @default.
• W2912016703 creator A5021273069 @default.
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• W2912016703 date "2019-02-13" @default.
• W2912016703 modified "2023-10-14" @default.
• W2912016703 title "Quantitative systems pharmacology of interferon alpha administration: A multi-scale approach" @default.
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• W2912016703 doi "https://doi.org/10.1371/journal.pone.0209587" @default.
• W2912016703 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6374012" @default.
• W2912016703 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30759154" @default.
• W2912016703 hasPublicationYear "2019" @default.
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