Abstract
Hypertension treatment is a current therapeutic priority as there is a constantly increasing part of the population that suffers from this risk factor, which may lead to cardiovascular and encephalic episodes and eventually to death. A number of marketed medicines consist of active ingredients that may be relatively potent; however, there is plenty of room to enhance their pharmacological profile and therapeutic index by improving specific physicochemical properties. In this work, we focus on a class of blood pressure regulators, called sartans, and we present the computational scheme for the pharmacological improvement of irbesartan (IRB) as a representative example. IRB has been shown to exert increased pharmacological action compared with other sartans, but it appears to be highly lipophilic and violates Lipinski rule (MLogP >4.15). To circumvent this drawback, proper hydrophilic molecules, such as cyclodextrins, can be used as drug carriers. This chapter describes the combinatory use of computational methods, namely molecular docking, quantum mechanics, molecular dynamics, and free energy calculations, to study the interactions and the energetic contributions that govern the IRB:cyclodextrin association. We provide a detailed computational protocol, which aims to assist the improvement of the pharmacological properties of sartans. This protocol can also be applied to any other drug molecule with diminished hydrophilic character.
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Acknowledgments
This work has been co-financed by the European Union and Greek national funds through the program “Support for Researchers with Emphasis on Young Researchers” (call code: EDBM34, ΚΕ 14995) and under the research title “Preparation and study of innovative forms of administration of pharmaceutical molecules targeting at improved pharmacological properties.”
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Leonis, G., Ntountaniotis, D., Christodoulou, E., Mavromoustakos, T. (2021). Molecular Dynamics Protocols for the Study of Cyclodextrin Drug Delivery Systems. In: Mavromoustakos, T., Tzakos, A.G., Durdagi, S. (eds) Supramolecules in Drug Discovery and Drug Delivery. Methods in Molecular Biology, vol 2207. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-0920-0_9
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