Bioinfo Chem
System biology and Infochemistry | Online ISSN 3071-4826
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Artificial Intelligence in Drug Repurposing: Machine Learning, Deep Learning, and Network-Based Drug Discovery
Shunqi Liu 1*
Bioinfo Chem 5 (1) 1-8 https://doi.org/10.25163/bioinformatics.5110723
Submitted: 01 January 2023 Revised: 17 February 2023 Accepted: 25 February 2023 Published: 27 February 2023
Abstract
AI-driven drug repurposing is increasingly emerging as a powerful strategy in drug discovery, addressing the high cost, long timelines, and low success rates of conventional drug development. By leveraging artificial intelligence, machine learning, and deep learning, drug repurposing is evolving from serendipitous discovery toward systematic, data-driven approaches. This review synthesizes recent advances in AI-driven drug repurposing, highlighting the integration of heterogeneous biomedical data, including genomic, transcriptomic, clinical, and pharmacological datasets. Machine learning and deep learning models demonstrate strong potential to identify novel drug–disease relationships, particularly by capturing complex, nonlinear biological interactions. Network pharmacology approaches further enhance this capability by modeling drug action within interconnected biological systems rather than isolated targets. Despite these advances, key challenges remain. Data heterogeneity, limited model interpretability, and insufficient experimental validation continue to constrain clinical translation. These limitations highlight the need for robust validation frameworks and improved data integration strategies. Overall, AI-driven drug repurposing represents a shift toward predictive and integrative drug discovery. Continued progress will depend on combining advanced computational methods with interdisciplinary validation to translate computational insights into clinically actionable therapies.
Keywords: AI-driven drug repurposing; machine learning; deep learning; network pharmacology; biomedical data integration
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