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Identifying Bayesian Optimal Experiments for Uncertain Biochemical Pathway Models

2023/09/12 by Natalie M. Isenberg, Isenberg, Natalie M., Susan D. Mertins +7
Biochemistry, Genetics and Molecular Biology · Computer Science · Mathematics · #Applications (stat.AP) #Computation (stat.CO) #Computational Drug Discovery Methods #FOS: Biological sciences #FOS: Computer and information sciences #Molecular Networks (q-bio.MN) #Receptor Mechanisms and Signaling #Statistical Methods in Clinical Trials

paper · pdf · doi:10.48550/arxiv.2309.06540

openalex publication_date 2023/09/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Pharmacodynamic (PD) models are mathematical models of cellular reaction networks that include drug mechanisms of action. These models are useful for studying predictive therapeutic outcomes of novel drug therapies in silico. However, PD models are known to possess significant uncertainty with respect to constituent parameter data, leading to uncertainty in the model predictions. Furthermore, experimental data to calibrate these models is often limited or unavailable for novel pathways. In this study, we present a Bayesian optimal experimental design approach for improving PD model prediction accuracy. We then apply our method using simulated experimental data to account for uncertainty in hypothetical laboratory measurements. This leads to a probabilistic prediction of drug performance and a quantitative measure of which prospective laboratory experiment will optimally reduce prediction uncertainty in the PD model. The methods proposed here provide a way forward for uncertainty quantification and guided experimental design for models of novel biological pathways.

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