Bioinfo Chem

System biology and Infochemistry | Online ISSN 3071-4826
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Bioinfo Chem 2 (1) 1-13 https://doi.org/10.25163/bioinformatics.2110738

Submitted: 17 June 2020 Revised: 10 August 2020  Accepted: 16 August 2020  Published: 18 August 2020 


Abstract

Toxicology, as a discipline, seems to be standing at a subtle yet decisive crossroads. For decades, safety assessment relied on animal-based models—robust in some respects, yet increasingly questioned for their cost, ethical implications, and, perhaps most critically, their imperfect translation to human biology. This review explores the emerging paradigm of Integrative Predictive Toxicology (IPT), where systems biology, machine learning, and biokinetic modeling converge to offer a more mechanistically grounded and human-relevant framework.Rather than focusing solely on late-stage apical outcomes, IPT shifts attention toward early molecular perturbations, often structured through Adverse Outcome Pathways (AOPs). Advances in high-throughput screening and multi-omics technologies now generate data at a scale that, not long ago, would have seemed unmanageable. Yet, when paired with machine learning algorithms and supported by curated databases, these datasets begin to reveal predictive patterns of toxicity. Importantly, the integration of physiologically based pharmacokinetic (PBPK) modeling and QIVIVE provides a necessary bridge between in vitro signals and real-world human exposure. Still, this transition is not without uncertainty. Questions of model interpretability, data harmonization, and regulatory acceptance remain. And yet, taken together, these approaches suggest something quite compelling: a shift from observing toxicity after it occurs to anticipating it before it manifests—arguably redefining the future of drug safety itself.

Keywords: Predictive toxicology; Machine learning; Systems biology; PBPK modeling; Adverse outcome pathways

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