Date
25 April 2025
Title
Hybrid AI and Open Source for Drug Design
Abstract
Addressing the complexities of drug design – exemplified here on human protein kinases – necessitates innovative approaches that blend artificial intelligence (AI) with domain expertise. With over 6,000 human kinase structures available in the PDB and around 70 small molecule kinase inhibitors, persistent challenges such as drug promiscuity, resistance, and unexplored kinase territories remain.
This presentation showcases open-source approaches that integrate domain knowledge into AI frameworks to overcome data scarcity issues and enhance model generalization. Leveraging openly available kinase data, we demonstrate how hybrid AI and classical methods can generate new insights and foster community engagement. The TeachOpenCADD platform [1,2] serves as a versatile tool for orchestrating diverse computer-aided drug design (CADD) tasks, exemplified on individual kinases. We introduce freely available resources to support kinase research and incorporate structural data to enhance prediction accuracy and guide drug discovery efforts. These resources include active learning on the KinFragLib kinase fragment library for inhibitor design [3], and structure-based deep learning approaches for affinity prediction [4].
These projects highlight how hybrid AI approaches fuse experimental with computational insights to advance the frontier of data-driven drug design.
References:
[1] S. Dominique, et al., TeachOpenCADD 2022: Open Source and FAIR Python Pipelines to Assist in Structural Bioinformatics and Cheminformatics Research. Nucleic Acids Research, 2022. https://doi.org/10.1093/nar/gkac267
[2] M. Backenköhler, et al., TeachOpenCADD goes Deep Learning: Open-source Teaching Platform Exploring Molecular DL Applications. ChemRxiv, 2023. https://doi.org/10.26434/chemrxiv-2023-kz1pb
[3] S. Dominique, et al., KinFragLib: Exploring the Kinase Inhibitor Space Using Subpocket-Focused Fragmentation and Recombination. Journal of Chemical Information and Modeling, 2020. https://doi.org/10.1021/acs.jcim.0c00839
[4] M. Backenköhler, J. Groß, V. Wolf, A. Volkamer, Guided docking as a data generation approach facilitates structure-based machine learning on kinases. Journal of Chemical Information and Modeling, 2024, 64, 10, 4009–4020 https://pubs.acs.org/doi/10.1021/acs.jcim.4c00055
Vita:
Andrea Volkamer studied bioinformatics at Saarland University, followed by a one-year research stay at Purdue University (USA). After her PhD at the University of Hamburg, she worked at the BioMedX Innovation Center Heidelberg as a Postdoc on methods for the development of selective kinase inhibitors. Before her appointment as a university professor at Saarland University in 2022, she has been leading a research group for structural bioinformatics and in silico toxicology at the Institute of Physiology at Charité Universitätsmedizin Berlin as an assistant professor. Andrea Volkamer is an associated researcher at the Helmholtz Institute for Pharmaceutical Research Saarland (HIPS).
Andrea Volkamer’s scientific focus is on method development with a particular interest in structure-based machine learning approaches for computational drug design. The application focus so far is in the areas of cancer research and risk assessment of new molecules (alternative to animal testing). She does so by exploiting the rapidly growing amount of available experimental data – increasingly complemented by synthetic data, as well as powerful computational algorithms – to develop in silico methods that support the drug design process.
Andrea Volkamer is a strong advocate of FAIR science and supports many open source initiatives. In this context, for example, her public teaching materials TeachOpenCADD and Dr. med. AI are worth mentioning, as well as her contributions to the Covid Moonshot Consortium.
(Based on: https://saarland-informatics-campus.de/en/piece-of-news/andrea-volkamer-new-professor-for-data-driven-drug-development/ )
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