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Schmidt S, Holzgrabe U. Do the enantiomers of ketamine bind enantioselectively to human serum albumin? Eur J Pharm Sci 2024; 192:106640. [PMID: 37979888 DOI: 10.1016/j.ejps.2023.106640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/08/2023] [Accepted: 11/11/2023] [Indexed: 11/20/2023]
Abstract
The binding of drugs to plasma proteins is an important process in the human body and has a significant influence on pharmacokinetic parameter. Human serum albumin (HSA) has the most important function as a transporter protein. The binding of ketamine to HSA has already been described in literature, but only of the racemate. The enantiomerically pure S-ketamine is used as injection solution for induction of anesthesia and has been approved by the Food and Drug Administration for the therapy of severe depression as a nasal spray in 2019. The question arises if there is enantioselective binding to HSA. Hence, the aim of this study was to investigate whether there is enantioselective binding of S-and R-ketamine to HSA or not. Ultrafiltration (UF) followed by chiral capillary electrophoretic analysis was used to determine the extent of protein binding. Bound fraction to HSA was 71.2 % and 64.9 % for enantiomerically pure R- and S-ketamine, respectively, and 66.5 % for the racemate. Detailed binding properties were studied by Saturation Transfer Difference (STD)-, waterLOGSY- and Carr-Purcell-Meiboom-Gill (CPMG)-NMR spectroscopy. With all three methods, the aromatic ring and the N-methyl group could be identified as the structural moieties most strongly involved in binding of ketamine to HSA. pKaff values determined using UF and NMR indicate that ketamine is a weak affinity ligand to HSA and no significant differences in binding behavior were found between the individual enantiomers and the racemate.
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Affiliation(s)
- Sebastian Schmidt
- Institute for Pharmacy and Food Chemistry, Am Hubland, D-97074 Wuerzburg, Germany
| | - Ulrike Holzgrabe
- Institute for Pharmacy and Food Chemistry, Am Hubland, D-97074 Wuerzburg, Germany.
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2
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Ultrasound-assisted dispersive liquid–liquid microextraction coupled with field-amplified capillary electrophoresis for sensitive and quantitative determination of fluoxetine and norfluoxetine enantiomers in biological fluids. Anal Bioanal Chem 2020; 412:5113-5123. [DOI: 10.1007/s00216-020-02441-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/16/2019] [Accepted: 01/20/2020] [Indexed: 10/24/2022]
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3
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Volpp M, Holzgrabe U. Determination of plasma protein binding for sympathomimetic drugs by means of ultrafiltration. Eur J Pharm Sci 2018; 127:175-184. [PMID: 30391401 DOI: 10.1016/j.ejps.2018.10.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/22/2018] [Accepted: 10/30/2018] [Indexed: 10/28/2022]
Abstract
Ephedrine and its diastereomer pseudoephedrine have long been used in therapy and are part of over-the-counter combination drugs against colds or allergies. Nonetheless, there is scarcely any information on their plasma protein binding in literature. Plasma protein binding is an important parameter from a pharmacokinetic and pharmacodynamic point of view and can play a crucial role in therapy. The aim of this study was to determine the extent of plasma protein binding using ultrafiltration and different types of plasma proteins like human (HSA) and bovine serum albumin (BSA) and human serum. Two orthogonal methods - continuous and discontinuous ultrafiltration - were used to confirm our findings. To get some structural and stereochemical insights into binding affinity towards plasma proteins, all four stereoisomers of ephedrine and pseudoephedrine were included in this study. Since all four stereoisomers exhibit a low affinity towards albumin, other sympathomimetic drugs of structural similarity were tested to investigate the influence of the basic character of the Ephedra alkaloids in their binding to plasma proteins.
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Affiliation(s)
- M Volpp
- Institute of Pharmacy and Food Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - U Holzgrabe
- Institute of Pharmacy and Food Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany.
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4
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Hancu G, Budău M, Muntean DL, Gagyi L, Rusu A. Capillary electrophoresis in the enantioseparation of modern antidepressants: An overview. Biomed Chromatogr 2018; 32:e4335. [DOI: 10.1002/bmc.4335] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 06/26/2018] [Accepted: 07/04/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Gabriel Hancu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; University of Medicine and Pharmacy of Tîrgu Mureș; Romania
| | - Monica Budău
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; University of Medicine and Pharmacy of Tîrgu Mureș; Romania
| | - Daniela Lucia Muntean
- Department of Analytical Chemistry and Drug Analysis, Faculty of Pharmacy; University of Medicine and Pharmacy of Tîrgu Mureș; Romania
| | | | - Aura Rusu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; University of Medicine and Pharmacy of Tîrgu Mureș; Romania
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5
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Hancu G, Cârcu-Dobrin M, Budău M, Rusu A. Analytical methodologies for the stereoselective determination of fluoxetine: An overview. Biomed Chromatogr 2017; 32. [DOI: 10.1002/bmc.4040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 06/14/2017] [Accepted: 06/27/2017] [Indexed: 01/14/2023]
Affiliation(s)
- Gabriel Hancu
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry; University of Medicine and Pharmacy; Tîrgu Mureş Romania
| | - Melania Cârcu-Dobrin
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry; University of Medicine and Pharmacy; Tîrgu Mureş Romania
| | | | - Aura Rusu
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry; University of Medicine and Pharmacy; Tîrgu Mureş Romania
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6
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Asensi-Bernardi L, Martín-Biosca Y, Escuder-Gilabert L, Sagrado S, Medina-Hernández MJ. Evaluation of the enantioselective binding of imazalil to human serum albumin by capillary electrophoresis. Biomed Chromatogr 2015; 29:1637-42. [DOI: 10.1002/bmc.3472] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 02/04/2015] [Accepted: 03/04/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Lucía Asensi-Bernardi
- Departamento de Química Analítica, Facultad de Farmacia; Universitat de València; Burjassot Spain
| | - Yolanda Martín-Biosca
- Departamento de Química Analítica, Facultad de Farmacia; Universitat de València; Burjassot Spain
| | - Laura Escuder-Gilabert
- Departamento de Química Analítica, Facultad de Farmacia; Universitat de València; Burjassot Spain
| | - Salvador Sagrado
- Departamento de Química Analítica, Facultad de Farmacia; Universitat de València; Burjassot Spain
- Centro Interuniversitario de Reconocimiento Molecular y Desarrollo Tecnológico; Unidad Mixta Universidad Politécnica de Valencia-Universitat de València; Valencia Spain
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7
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Asensi-Bernardi L, Escuder-Gilabert L, Martín-Biosca Y, Medina-Hernández MJ, Sagrado S. Modeling the chiral resolution ability of highly sulfated β-cyclodextrin for basic compounds in electrokinetic chromatography. J Chromatogr A 2013; 1308:152-60. [PMID: 23958689 DOI: 10.1016/j.chroma.2013.08.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 07/31/2013] [Accepted: 08/01/2013] [Indexed: 11/30/2022]
Abstract
Despite the fact that extensive research in the field of enantioseparations by capillary electrophoresis has been carried out, it is difficult to predict whether a concrete chiral selector would be useful for the separation of a racemic compound. Hence, several experimental effort is necessary to test the abilities of individual chiral selectors, usually by trial and error procedures. Thus, the enantioseparation of a new racemate becomes a time- and money-consuming task. In this work, the ability of highly sulfated β-cyclodextrin (HS-β-CD) as chiral selector in electrokinetic chromatography (EKC) is modeled for the first time, using exclusively directly-available structural data of forty compounds (structurally unrelated basic drugs and pesticides). A discriminant partial least squares (PLS)-based quantitative structure-property relationship (QSPR) approach is simplified, resulting in a consistent, predictive and descriptive model. It is converted into an explicit equation able to predict the enantioresolution level (Rs) of new compounds, from four structure properties available in an on-line open database: logarithm of octanol-water partition coefficient estimated at pH 7.4 (lgD), polar surface area (PSA), number of hydrogen bond donors (HBD) and acceptors (HBA). For the cases in which the model predicts good Rs only in concrete experimental conditions, a Box-Behnken experimental design is proposed for the fast PLS-based optimization of the most influential experimental variables: cyclodextrin concentration, temperature and pH.
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Affiliation(s)
- L Asensi-Bernardi
- Departamento de Química Analítica, Universidad de Valencia, Burjassot, Valencia, Spain
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8
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Asensi-Bernardi L, Martín-Biosca Y, Escuder-Gilabert L, Sagrado S, Medina-Hernández M. In-line capillary electrophoretic evaluation of the enantioselective metabolism of verapamil by cytochrome P3A4. J Chromatogr A 2013; 1298:139-45. [DOI: 10.1016/j.chroma.2013.05.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 05/13/2013] [Accepted: 05/14/2013] [Indexed: 01/28/2023]
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9
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Asensi-Bernardi L, Escuder-Gilabert L, Martín-Biosca Y, Sagrado S, Medina-Hernández MJ. Characterizing the interaction between enantiomers of eight psychoactive drugs and highly sulfated-β-cyclodextrin by counter-current capillary electrophoresis. Biomed Chromatogr 2013; 28:120-6. [DOI: 10.1002/bmc.2935] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 04/11/2013] [Accepted: 04/12/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Lucía Asensi-Bernardi
- Departamento de Química Analítica; Universidad de Valencia, Burjassot; Valencia Spain
| | | | - Yolanda Martín-Biosca
- Departamento de Química Analítica; Universidad de Valencia, Burjassot; Valencia Spain
| | - Salvador Sagrado
- Departamento de Química Analítica; Universidad de Valencia, Burjassot; Valencia Spain
- Centro Interuniversitario de Reconocimiento Molecular y Desarrollo Tecnológico; Unidad mixta Universidad Politécnica de Valencia - Universidad de Valencia; Valencia Spain
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10
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Gumede NJ, Singh P, Sabela MI, Bisetty K, Escuder-Gilabert L, Medina-Hernández MJ, Sagrado S. Experimental-Like Affinity Constants and Enantioselectivity Estimates from Flexible Docking. J Chem Inf Model 2012; 52:2754-9. [DOI: 10.1021/ci300335m] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- N. J. Gumede
- Department of Chemistry, Mangosuthu University of Technology, P.O. Box 12363,
Jacobs, 4026, South Africa
- Department of Chemistry, Durban University of Technology, P.O. Box 1334, Durban,
4000, South Africa
| | - P. Singh
- Department of Chemistry, Durban University of Technology, P.O. Box 1334, Durban,
4000, South Africa
| | - M. I. Sabela
- Department of Chemistry, Durban University of Technology, P.O. Box 1334, Durban,
4000, South Africa
| | - K. Bisetty
- Department of Chemistry, Durban University of Technology, P.O. Box 1334, Durban,
4000, South Africa
| | - L. Escuder-Gilabert
- Departamento
de Química
Analítica, Facultad de Farmacia, Universidad de Valencia, Burjassot, Valencia, Spain
| | - M. J. Medina-Hernández
- Departamento
de Química
Analítica, Facultad de Farmacia, Universidad de Valencia, Burjassot, Valencia, Spain
| | - S. Sagrado
- Departamento
de Química
Analítica, Facultad de Farmacia, Universidad de Valencia, Burjassot, Valencia, Spain
- Centro de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM), Unidad mixta Universidad Politécnica de Valencia−Universidad de Valencia, Valencia, Spain
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11
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Asensi-Bernardi L, Martín-Biosca Y, Fornet-Herrero E, Sagrado S, Medina-Hernández MJ. Determination of fluoxetine enantiomers in pharmaceutical formulations by electrokinetic chromatography-counter current technique. Biomed Chromatogr 2012; 27:377-81. [DOI: 10.1002/bmc.2802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Revised: 07/23/2012] [Accepted: 07/23/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Lucía Asensi-Bernardi
- Departamento de Química Analítica, Facultad de Farmacia; Universidad de Valencia; Burjassot; Valencia; Spain
| | - Yolanda Martín-Biosca
- Departamento de Química Analítica, Facultad de Farmacia; Universidad de Valencia; Burjassot; Valencia; Spain
| | - Eder Fornet-Herrero
- Departamento de Química Analítica, Facultad de Farmacia; Universidad de Valencia; Burjassot; Valencia; Spain
| | | | - María José Medina-Hernández
- Departamento de Química Analítica, Facultad de Farmacia; Universidad de Valencia; Burjassot; Valencia; Spain
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12
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Evaluation of enantioselective binding of propanocaine to human serum albumin by ultrafiltration and electrokinetic chromatography under intermediate precision conditions. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 889-890:87-94. [PMID: 22366280 DOI: 10.1016/j.jchromb.2012.01.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 01/24/2012] [Accepted: 01/29/2012] [Indexed: 11/23/2022]
Abstract
Stereoselectivity in protein binding can have a significant effect on the pharmacokinetic and pharmacodynamic properties of chiral drugs. In this paper, the enantioselective binding of propanocaine (PRO) enantiomers to human serum albumin (HSA), the most relevant plasmatic protein in view of stereoselectivity, has been evaluated by incubation and ultrafiltration of racemic PRO-HSA mixtures and chiral analysis of the bound and unbound fractions by electrokinetic chromatography using HSA as chiral selector. Experimental conditions for the separation of PRO enantiomers using HSA as chiral selector and electrokinetic chromatography have been optimised. Affinity constants and protein binding in percentage (PB) were obtained for both enantiomers of PRO, as well as the enantioselectivity (ES) to HSA. Data were obtained in two independent working sessions (days). The influence of the session and fraction processed factors were examined. A univariate direct-estimation approach was used facilitating outliers' identification and statistical comparison. Non-linear fitting of data was used to verify the stoichiometry and affinity estimations obtained by the direct approach. Robust statistics were applied to obtain reliable estimations of uncertainty, accounting for the factors (day and processed fraction), thus representing intermediate precision conditions. Mimicking in vivo experimental conditions, information unapproachable by in vivo experiments was obtained for PRO enantiomers interacting with HSA. For the first (E1) and the second (E2) eluted PRO enantiomers the results were: 1:1 stoichiometry, medium affinity constants, logK(E1)=3.20±0.16 and log K(E2)=3.40±0.14, medium protein binding percentage, PB=48.7 and 60.1% for E1 and E2, respectively, and moderate but significant enantioselectivity, ES=K(E2)/K(E1)=1.5±0.3.
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13
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Asensi-Bernardi L, Martín-Biosca Y, Sagrado S, Medina-Hernández MJ. Electrokinetic chromatographic estimation of the enantioselective binding of nomifensine to human serum albumin and total plasma proteins. Biomed Chromatogr 2012; 26:1357-63. [DOI: 10.1002/bmc.2704] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 12/15/2011] [Accepted: 12/15/2011] [Indexed: 01/01/2023]
Affiliation(s)
- Lucía Asensi-Bernardi
- Departamento de Química Analítica, Facultad de Farmacia; Universidad de Valencia; Burjassot; Valencia; Spain
| | - Yolanda Martín-Biosca
- Departamento de Química Analítica, Facultad de Farmacia; Universidad de Valencia; Burjassot; Valencia; Spain
| | | | - María J. Medina-Hernández
- Departamento de Química Analítica, Facultad de Farmacia; Universidad de Valencia; Burjassot; Valencia; Spain
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14
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Connecting simulated, bioanalytical, and molecular docking data on the stereoselective binding of (±)-catechin to human serum albumin. Anal Bioanal Chem 2011; 402:1899-909. [DOI: 10.1007/s00216-011-5636-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 11/10/2011] [Accepted: 12/04/2011] [Indexed: 10/14/2022]
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15
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On the zopiclone enantioselective binding to human albumin and plasma proteins. An electrokinetic chromatography approach. J Chromatogr A 2011; 1218:3111-7. [DOI: 10.1016/j.chroma.2011.03.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 03/07/2011] [Accepted: 03/14/2011] [Indexed: 11/17/2022]
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