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Bao X, Liu X, Dou R, Xu S, Liu D, Luo J, Gong X, Wong CF, Zhou B. How are N-methylcarbamates encapsulated by β-cyclodextrin: insight into the binding mechanism. Phys Chem Chem Phys 2023; 25:13923-13932. [PMID: 37184134 DOI: 10.1039/d3cp01252b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Guest molecules containing chromophore groups encapsulated by β-cyclodextrin (β-CD) generate circular dichroism (CD) signals, which enables a preliminary prediction of their binding modes. However, the accurate determination of the representative binding conformation (RC) remains a challenging task due to the complex conformational space of these host-guest systems. Here, we combine a molecular dynamics/quantum mechanics/continuum solvent model (MD/QM/CSM) with induced circular dichroism (ICD) data (N. L. Pacioni, A. B. Pierini and A. V. Veglia, Spectrochim. Acta A Mol. Biomol. Spectrosc., 2013, 103, 319-324.) to explore the binding mechanism of β-CD with four N-methylcarbamate molecules: promecarb (PC), bendiocarb (BC), carbaryl (CY) and carbofuran (CF). In aqueous solution, their stability decreases as: PC > BC > CY > CF. Comparing the ECD spectra computed from TD-DFT with the ICD data can help eliminate many common binding configurations and identify the RC. The host-guest binding affinities (BAs) estimated using a ONIOM2(B971:PM6)/SMD model reproduce the measured binding trend, reveal the competition between the non-covalent interaction and solvent effect and explain the large difference in their binding modes. We also examine the fluctuations in the computed BA using similar structures.
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Affiliation(s)
- Xiaofang Bao
- Computational Institute for Molecules and Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Xiao Liu
- Computational Institute for Molecules and Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Ran Dou
- Computational Institute for Molecules and Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Sen Xu
- Computational Institute for Molecules and Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Dabin Liu
- Computational Institute for Molecules and Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Jun Luo
- Computational Institute for Molecules and Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Xuedong Gong
- Computational Institute for Molecules and Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Chung F Wong
- Department of Chemistry and Biochemistry and Center for Nanoscience, University of Missouri-Saint Louis, One University Boulevard, Saint Louis, MO 63121, USA
| | - Baojing Zhou
- Computational Institute for Molecules and Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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Alshati F, Alahmed TAA, Sami F, Ali MS, Majeed S, Murtuja S, Hasnain MS, Ansari MT. Guest-host Relationship of Cyclodextrin and its Pharmacological Benefits. Curr Pharm Des 2023; 29:2853-2866. [PMID: 37946351 DOI: 10.2174/0113816128266398231027100119] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 09/21/2023] [Indexed: 11/12/2023]
Abstract
Many methods, including solid dispersion, micellization, and inclusion complexes, have been employed to increase the solubility of potent drugs. Beta-cyclodextrin (βCD) is a cyclic oligosaccharide consisting of seven glucopyranoside molecules, and is a widely used polymer for formulating soluble inclusion complexes of hydrophobic drugs. The enzymatic activity of Glycosyltransferase or α-amylase converts starch or its derivatives into a mixture of cyclodextrins. The βCD units are characterized by α -(1-4) glucopyranose bonds. Cyclodextrins possess certain properties that make them very distinctive because of their toroidal or truncated cage-like supramolecular configurations with multiple hydroxyl groups at each end. This allowed them to encapsulate hydrophobic compounds by forming inclusion complexes without losing their solubility in water. Chemical modifications and newer derivatives, such as methylated βCD, more soluble hydroxyl propyl methyl βCD, and sodium salts of sulfobutylether-βCD, known as dexolve® or captisol®, have envisaged the use of CDs in various pharmaceutical, medical, and cosmetic industries. The successful inclusion of drug complexes has demonstrated improved solubility, bioavailability, drug resistance reduction, targeting, and penetration across skin and brain tissues. This review encompasses the current applications of β-CDs in improving the disease outcomes of antimicrobials and antifungals as well as anticancer and anti-tubercular drugs.
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Affiliation(s)
- Fatmah Alshati
- School of Pharmacy, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Teejan Ameer Abed Alahmed
- School of Pharmacy, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Selangor, Malaysia
| | - Farheen Sami
- Department of Pharmaceutics, Hygia Institute of Pharmaceutical Sciences and Research, Lucknow, India
| | - Md Sajid Ali
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, Kingdome of Saudi Arabia
| | - Shahnaz Majeed
- Department of Pharmacy, Royal College of Medicine Perak, Universiti Kuala Lumpur, Ipoh, Malaysia
| | - Sheikh Murtuja
- Department of Pharmacy, Palamu Institute of Pharmacy, Chianki, Jharkhand 822102, India
| | - M Saquib Hasnain
- Department of Pharmacy, Palamu Institute of Pharmacy, Chianki, Jharkhand 822102, India
| | - Mohammed Tahir Ansari
- School of Pharmacy, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Selangor, Malaysia
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Belica-Pacha S, Daśko M, Buko V, Zavodnik I, Miłowska K, Bryszewska M. Thermodynamic Studies of Interactions between Sertraline Hydrochloride and Randomly Methylated β-Cyclodextrin Molecules Supported by Circular Dichroism Spectroscopy and Molecular Docking Results. Int J Mol Sci 2021; 22:12357. [PMID: 34830239 PMCID: PMC8620473 DOI: 10.3390/ijms222212357] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 12/20/2022] Open
Abstract
The interaction between sertraline hydrochloride (SRT) and randomly methylated β-cyclodextrin (RMβCD) molecules have been investigated at 298.15 K under atmospheric pressure. The method used-Isothermal Titration Calorimetry (ITC) enabled to determine values of the thermodynamic functions like the enthalpy (ΔH), the entropy (ΔS) and the Gibbs free energy (ΔG) of binding for the examined system. Moreover, the stoichiometry coefficient of binding (n) and binding/association constant (K) value have been calculated from the experimental results. The obtained outcome was compared with the data from the literature for other non-ionic βCD derivatives interacting with SRT and the enthalpy-entropy compensation were observed and interpreted. Furthermore, the connection of RMβCD with SRT was characterized by circular dichroism spectroscopy (CD) and complexes of βCD derivatives with SRT were characterized through the computational studies with the use of molecular docking (MD).
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Affiliation(s)
- Sylwia Belica-Pacha
- Unit of Biophysical Chemistry, Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 165, 90-236 Lodz, Poland
| | - Mateusz Daśko
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland;
| | - Vyacheslav Buko
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Compounds, National Academy of Sciences, BLK-50, 230030 Grodno, Belarus; (V.B.); (I.Z.)
- Department of Biotechnology, School of Medical Sciences, Krakowska 9, 15-875 Bialystok, Poland
| | - Ilya Zavodnik
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Compounds, National Academy of Sciences, BLK-50, 230030 Grodno, Belarus; (V.B.); (I.Z.)
- Department of Biochemistry, Yanka Kupala Grodno State University, BLK-50, 230030 Grodno, Belarus
| | - Katarzyna Miłowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (K.M.); (M.B.)
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (K.M.); (M.B.)
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