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Published on: May 16, 2020
Computational studies of target-specific radiopharmaceuticals for theranostics
Silvia Gervasoni1, Camilla Guccione1, Giuliano Malloci1
1Department of Physics, University of Cagliari, Cittadella Universitaria, S.P. Monserrato-Sestu Km 0.7, Monserrato, I-09042, CA, Italy.
Abstract:
Radiopharmaceuticals are key tools in nuclear medicine, enabling both diagnostic imaging and targeted therapy for conditions such as cancer and neurological disorders. The integration of computational techniques in the drug-discovery process, such as molecular docking and molecular dynamics simulations, contributes to the development of this class of compounds. Here we review recent computational studies on radiopharmaceuticals acting on different targets: receptors, enzymes, and transporters. Several receptors such as chemokine receptor 4, neurokinin-1, metabotropic glutamate receptor, and gastrin-releasing peptide receptor have been investigated using molecular simulations to optimize ligand binding and enhance receptor targeting. Enzymes like prostate-specific membrane antigen and fibroblast activation protein α have been investigated in silico for their interaction with novel radiopharmaceutical inhibitors. Additionally, transporter proteins such as glucose transporters have been explored for their role in cancer metabolism and imaging applications. Advanced computational studies, including quantum mechanics calculations and free energy estimations, have contributed to our understanding of radiopharmaceutical binding modes and stability at the molecular level of detail. The review highlights the potential of computational approaches for cost-effective design of next-generation theranostic agents, emphasizing the importance of molecular databases in ligand-based drug discovery and artificial intelligence-based drug design.
Insights
Computational methods accelerate the development of radiopharmaceuticals for nuclear medicine imaging and therapy. These techniques optimize drug design for targets like receptors, enzymes, and transporters, paving the way for advanced theranostic agents.
Area of Science:
- Nuclear medicine
- Computational chemistry
- Drug discovery
Background:
- Radiopharmaceuticals are crucial for diagnostic imaging and targeted therapy in nuclear medicine.
- Computational techniques like molecular docking and dynamics are increasingly integrated into drug discovery.
- These methods aid in developing novel radiopharmaceutical compounds for various diseases.
Purpose of the Study:
- To review recent computational studies on radiopharmaceuticals targeting receptors, enzymes, and transporters.
- To highlight the role of advanced computational methods in understanding radiopharmaceutical interactions.
- To emphasize the potential of computational approaches for designing next-generation theranostic agents.
Main Methods:
- Molecular docking and molecular dynamics simulations.
- In silico investigations of radiopharmaceutical interactions with enzymes.
- Quantum mechanics calculations and free energy estimations.
Main Results:
- Molecular simulations optimized ligand binding for receptors like chemokine receptor 4 and neurokinin-1.
- In silico studies explored radiopharmaceutical inhibitors for enzymes such as prostate-specific membrane antigen.
- Computational approaches enhanced understanding of radiopharmaceutical binding modes and stability.
Conclusions:
- Computational methods offer a cost-effective pathway for designing advanced radiopharmaceuticals.
- Molecular databases and AI-driven design are vital for future radiopharmaceutical development.
- These approaches are essential for creating next-generation theranostic agents for cancer and neurological disorders.
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