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Poddar S, Woolfork AG, Iftekhar S, Ovbude ST, Hage DS. Characterization of binding by sulfonylureas with normal or modified human serum albumin using affinity microcolumns prepared by entrapment. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1226:123798. [PMID: 37331054 PMCID: PMC10529298 DOI: 10.1016/j.jchromb.2023.123798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/20/2023]
Abstract
Modification of proteins can occur during diabetes due to the formation of advanced glycation end-products (AGEs) with reactive dicarbonyls such as glyoxal (Go) and methylglyoxal (MGo). Human serum albumin (HSA) is a serum protein that binds to many drugs in blood and that is known to be modified by Go and MGo. This study examined the binding of various sulfonylurea drugs with these modified forms of HSA by using high-performance affinity microcolumns prepared by non-covalent protein entrapment. Zonal elution experiments were employed to compare the retention and overall binding constants for the drugs with Go- or MGo-modified HSA vs normal HSA. The results were compared to values from the literature, such as measured or estimated using affinity columns containing covalently immobilized HSA or biospecifically-adsorbed HSA. The entrapment-based approach provided estimates of global affinity constants within 3-5 min for most of the tested drugs and with typical precisions of ±10-23%. Each entrapped protein microcolumn was stable for over at least 60-70 injections and one month of use. The results obtained with normal HSA agreed at the 95% confidence level with global affinity constants that have been reported for the given drugs in the literature. It was found for HSA that had been modified with clinically-relevant levels of either Go or MGo that an increase in the global affinity constant of up to 2.1-fold occurred for some of the tested drugs. The information acquired in this study can be used in the future to adapt this entrapment-based approach to study and evaluate interactions between other types of drugs and normal or modified binding agents for clinical testing and biomedical research.
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Affiliation(s)
- Saumen Poddar
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Ashley G Woolfork
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Sazia Iftekhar
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Susan T Ovbude
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA.
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2
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Parker JA, Fung ES, Trejo-Martin A, Liang L, Gibbs K, Bandara S, Chen S, Sandhu R, Bercu J, Maier A. The utility of hERG channel inhibition data in the derivation of occupational exposure limits. Regul Toxicol Pharmacol 2022; 134:105224. [PMID: 35817210 DOI: 10.1016/j.yrtph.2022.105224] [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: 03/07/2022] [Revised: 05/20/2022] [Accepted: 07/06/2022] [Indexed: 11/19/2022]
Abstract
Inhibition of the human ether-à-go-go (hERG) channel may lead to QT prolongation and fatal arrhythmia. While pharmaceutical drug candidates that exhibit potent hERG channel inhibition often fail early in development, many drugs with both cardiac and non-cardiac indications proceed to market. In this study, the relationship between in vitro hERG channel inhibition and published occupational exposure limit (OEL) was evaluated. A total of 23 cardiac drugs and 44 drugs with non-cardiac indications with published hERG channel IC50 and published OELs were identified. There was an apparent relationship between hERG IC50 potency and the OEL for cardiac and non-cardiac drugs. Twenty cardiac and non-cardiac drugs were identified that had a potent hERG IC50 (≤25 μM) and a contrastingly large OEL value (≥100 μg/m3). OELs or hazard banding corresponding to ≤100 μg/m3 should be sufficiently protective of effects following occupational exposure to the majority of APIs with hERG IC50 values ≤ 100 μM. It is important to consider hERG IC50 values and possible cardiac effects when deriving OEL values for drugs, regardless of indication. These considerations may be particularly important early in the drug development process for establishing exposure control bands for drugs that do not yet have full clinical safety data.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Joel Bercu
- Gilead Sciences, Inc., Nonclinical Safety and Pathobiology, Foster City, CA, USA
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Hann E, Malagu K, Stott A, Vater H. The importance of plasma protein and tissue binding in a drug discovery program to successfully deliver a preclinical candidate. PROGRESS IN MEDICINAL CHEMISTRY 2022; 61:163-214. [PMID: 35753715 DOI: 10.1016/bs.pmch.2022.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Plasma protein binding and tissue binding are arguably two of the most critical parameters that are measured as part of a drug discovery program since, according to the free drug hypothesis, it is the free drug that is responsible for both efficacy and toxicity. This chapter aims to deconstruct the role of plasma protein and tissue binding in drug discovery programs, and to consider the conclusion made by Pfizer and Genentech/Depomed a decade ago that optimising plasma protein binding as an independent parameter does not significantly influence efficacy. This chapter will also examine how binding metrics are applied in drug discovery programs and explore circumstances where optimising plasma protein or tissue binding can be an effective strategy to deliver a candidate molecule for preclinical development with an early indication of sufficient therapeutic index.
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Affiliation(s)
- Elizabeth Hann
- Charles River Laboratories, Robinson Building, Chesterford Research Park, Saffron Walden, United Kingdom.
| | - Karine Malagu
- Charles River Laboratories, Robinson Building, Chesterford Research Park, Saffron Walden, United Kingdom
| | - Andrew Stott
- Charles River Laboratories, Robinson Building, Chesterford Research Park, Saffron Walden, United Kingdom
| | - Huw Vater
- Charles River Laboratories, Robinson Building, Chesterford Research Park, Saffron Walden, United Kingdom
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Characterization of drug binding with alpha 1-acid glycoprotein in clinical samples using ultrafast affinity extraction. J Chromatogr A 2021; 1649:462240. [PMID: 34034105 DOI: 10.1016/j.chroma.2021.462240] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/01/2021] [Accepted: 05/03/2021] [Indexed: 11/24/2022]
Abstract
Many drugs bind to serum transport proteins, which can affect both drug distribution and activity in the body. α1-Acid glycoprotein (AGP) is a key transport protein for basic and neutral drugs. Both elevated levels and altered glycosylation patterns of AGP have been seen in clinical conditions such as systemic lupus erythematosus (SLE). This study developed, optimized, and used the method of ultrafast affinity extraction (UAE) to examine whether these changes in AGP are associated with changes in the binding by some drugs to this transport protein. This approach used affinity microcolumns to capture and measure, in serum, the free fractions of several drugs known to bind AGP. These measurements were made with pooled normal control serum and serum samples from individuals with SLE. Immunoaffinity chromatography was used to obtain the content of AGP and HSA in these samples, and CE was used to examine the glycoform pattern for AGP in each serum sample. The free drug fractions measured for normal control serum ranged from 3.5 to 29.1%, in agreement with the results of ultrafiltration, and provided binding constants of ~105-106 M-1 for the given drugs with AGP at 37⁰C. Analysis of a screening set of SLE serum samples by UAE gave decreased free fractions (relative change, 12-55%) vs normal serum when spiked with the same types and amounts of drugs. These changes were related in some cases to AGP content, with some SLE samples having AGP levels 1.3- to 2.1-fold above the upper end of the normal range. In other cases, the changes in free fractions appeared to be linked to alterations in the glycoforms and binding constants of AGP, with some affinities differing by 1.2- to 1.5-fold vs normal AGP. This approach can be employed with other solute-protein systems and to investigate binding by other drugs or transport proteins directly in clinical samples.
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Agarwal S, Allard R, Darcy J, Chigas S, Gu Y, Nguyen T, Bond S, Chong S, Wu JT, Janas MM. Impact of Serum Proteins on the Uptake and RNAi Activity of GalNAc-Conjugated siRNAs. Nucleic Acid Ther 2021; 31:309-315. [PMID: 33861634 PMCID: PMC8377513 DOI: 10.1089/nat.2020.0919] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Serum protein interactions are evaluated during the drug development process since they determine the free drug concentration in blood and thereby can influence the drug's pharmacokinetic and pharmacodynamic properties. While the impact of serum proteins on the disposition of small molecules is well understood, it is not yet well characterized for a new modality, RNA interference therapeutics. When administered systemically, small interfering RNAs (siRNAs) conjugated to the N-acetylgalactosamine (GalNAc) ligand bind to proteins present in circulation. However, it is not known if these protein interactions may impact the GalNAc-conjugated siRNA uptake into hepatocytes mediated through the asialoglycoprotein receptor (ASGPR) and thereby influence the activity of GalNAc-conjugated siRNAs. In this study, we assess the impact of serum proteins on the uptake and activity of GalNAc-conjugated siRNAs in primary human hepatocytes. We found that a significant portion of the GalNAc-conjugated siRNAs is bound to serum proteins. However, ASGPR-mediated uptake and activity of GalNAc-conjugated siRNAs were minimally impacted by the presence of serum relative to their uptake and activity in the absence of serum. Therefore, in contrast to small molecules, serum proteins are expected to have minimal impact on pharmacokinetic and pharmacodynamic properties of GalNAc-conjugated siRNAs.
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Affiliation(s)
- Saket Agarwal
- Early Development, Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Ruth Allard
- Early Development, Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Justin Darcy
- Early Development, Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Samantha Chigas
- Early Development, Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Yongli Gu
- Early Development, Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Tuyen Nguyen
- Early Development, Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Sarah Bond
- Early Development, Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Saeho Chong
- Early Development, Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Jing-Tao Wu
- Early Development, Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Maja M Janas
- Early Development, Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
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Factors to influence the accuracy of albumin adjusted free valproic acid concentration. J Formos Med Assoc 2020; 120:1114-1120. [PMID: 32978045 DOI: 10.1016/j.jfma.2020.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/31/2020] [Accepted: 09/07/2020] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Therapeutic drug monitoring (TDM) is recommended during treatment with valproic acid (VPA), as is the measurement of free VPA concentration (MfVPA). However, MfVPA is unavailable in many institutions. Based on the highly protein-bound characteristics of VPA, an albumin-adjusted formula has been proposed to predict free VPA concentration (PfVPA). Nevertheless, the factors affecting the accuracy of this formula remain unknown, as does the concordance between MfVPA and PfVPA. METHODS Adult patients receiving VPA and undergoing TDM were enrolled. Free and total serum concentration (TVPA) were categorized as subtherapeutic, therapeutic, or supratherapeutic based on the reference range of 5-15 and 50-100 μg/mL, respectively. Concordance was defined as MfVPA and PfVPA, or MfVPA and TVPA, falling within the same category. Multivariate logistic regression with generalized estimating equation was adopted to identify factors affecting concordance, and the receiver operating characteristic curve was applied to determine the cutoff values of predictors. RESULTS A total of 98 data points from 51 participants were included for analysis. The concordance of MfVPA and PfVPA, and MfVPA and TVPA, was 72% and 44%, respectively. Blood urea nitrogen (BUN) (0.97 [0.95-0.99], P = 0.01) and TVPA (0.97 [0.95-0.99], P = 0.02) had a significant influence on the concordance of MfVPA and PfVPA. The cutoff values of TVPA and BUN for the accuracy of the albumin-adjusted formula were 56.4 μg/mL and 51.05 mg/dL, respectively. CONCLUSION If MfVPA is not available, the albumin-adjusted formula should be applied before VPA dosage adjustment when TVPA is < 56.4 μg/mL and BUN is < 51.05 mg/dL.
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Kodama M, Higuchi H, Ishii-Maruhama M, Nakano M, Honda-Wakasugi Y, Maeda S, Miyawaki T. Multi-drug therapy for epilepsy influenced bispectral index after a bolus propofol administration without affecting propofol's pharmacokinetics: a prospective cohort study. Sci Rep 2020; 10:1578. [PMID: 32005870 PMCID: PMC6994638 DOI: 10.1038/s41598-020-58460-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 01/15/2020] [Indexed: 11/30/2022] Open
Abstract
Some previous studies have indicated that valproate (VPA) might change the pharmacokinetics and enhance the effects of propofol. We evaluated whether clinical VPA therapy affected the propofol blood level, the protein-unbound free propofol level, and/or the anesthetic effects of propofol in the clinical setting. The subjects were divided into the control group (not medicated with antiepileptics), the mono-VPA group (medicated with VPA alone), and the poly-VPA group (medicated with VPA, other antiepileptics, and/or psychoactive drugs). General anesthesia was induced via the administration of a single bolus of propofol and a remifentanil infusion, and when the bispectral index (BIS) exceeded 60 sevoflurane was started. There were no significant differences in the total blood propofol level at 5, 10, 15, and 20 min or the protein-unbound free propofol level at 5 min after the intravenous administration of propofol between the 3 groups. However, the minimum BIS was significantly lower and the time until the BIS exceeded 60 was significantly longer in the poly-VPA group. In the multivariate regression analysis, belonging to the poly-VPA group was found to be independently associated with the minimum BIS value and the time until the BIS exceeded 60. Clinical VPA therapy did not influence the pharmacokinetics of propofol. However, multi-drug therapy involving VPA might enhance the anesthetic effects of propofol.
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Affiliation(s)
- Matsuri Kodama
- Department of Dental Anesthesiology and Special Care Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hitoshi Higuchi
- Department of Dental Anesthesiology, Okayama University Hospital, Okayama, Japan.
| | - Minako Ishii-Maruhama
- Department of Dental Anesthesiology and Special Care Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Mai Nakano
- Department of Dental Anesthesiology and Special Care Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yuka Honda-Wakasugi
- Department of Dental Anesthesiology and Special Care Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Shigeru Maeda
- Department of Dental Anesthesiology, Okayama University Hospital, Okayama, Japan
| | - Takuya Miyawaki
- Department of Dental Anesthesiology and Special Care Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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8
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Nix DE, Villanueva JE, Matthias KR. The importance of dosing interval in limiting vancomycin AUC with trough monitoring. Am J Health Syst Pharm 2019; 77:487-492. [DOI: 10.1093/ajhp/zxz180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- David E Nix
- Department of Pharmacy Practice and Science, College of Pharmacy, University of Arizona, Tucson, AZ
| | - Juan E Villanueva
- Department of Pharmacy Practice and Science, College of Pharmacy, University of Arizona, Tucson, AZ
| | - Kathryn R Matthias
- Department of Pharmacy Practice and Science, College of Pharmacy, University of Arizona, Tucson, AZ
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9
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Ishii-Maruhama M, Higuchi H, Nakanou M, Honda-Wakasugi Y, Yabuki-Kawase A, Maeda S, Miyawaki T. In vitro changes in the proportion of protein-unbound-free propofol induced by valproate. J Anesth 2018; 32:688-693. [PMID: 30062394 DOI: 10.1007/s00540-018-2540-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 07/24/2018] [Indexed: 11/29/2022]
Abstract
PURPOSE It has been reported that oral valproate (VPA) reduces the dose of propofol required for sedation. As a potential reason for this, it is considered that VPA displaces serum protein-bound propofol and increases the proportion of protein-unbound-free propofol. To examine this hypothesis, the present in vitro study investigated the influence of VPA on the proportion of protein-unbound-free propofol in human serum samples. METHODS Serum samples were collected from 10 healthy volunteers, who were not taking any medication. VPA (final concentration: 0.05, 0.1 or 1 mg/mL) and propofol (final concentration: 1 or 5 µg/mL) were mixed with serum samples with normal (4.0 g/dL) or low (2.5 g/dL) albumin concentrations. Then, protein-unbound-free propofol was extracted from the samples, and its concentration was measured using high-performance liquid chromatography. We compared the proportion of protein-unbound-free propofol in each of the VPA-containing samples with that in serum samples without VPA (control). RESULTS In the serum samples with normal albumin concentrations, 1 mg/mL VPA significantly increased the proportion of protein-unbound-free propofol at 1 and 5 µg/mL propofol. Furthermore, in the serum samples with low albumin concentrations, the proportion of protein-unbound-free propofol was significantly increased by both 0.1 and 1 mg/mL VPA at propofol concentrations of 1 and 5 µg/mL. CONCLUSION VPA might increase the proportion of protein-unbound-free propofol in human serum via displacement reactions.
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Affiliation(s)
- Minako Ishii-Maruhama
- Department of Dental Anesthesiology and Special Care Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan.,Department of Anesthesiology and ICM, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Hitoshi Higuchi
- Department of Dental Anesthesiology, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan.
| | - Mai Nakanou
- Department of Dental Anesthesiology and Special Care Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan
| | - Yuka Honda-Wakasugi
- Department of Dental Anesthesiology and Special Care Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan
| | - Akiko Yabuki-Kawase
- Department of Dental Anesthesiology, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan
| | - Shigeru Maeda
- Department of Dental Anesthesiology, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan
| | - Takuya Miyawaki
- Department of Dental Anesthesiology and Special Care Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan
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Proks P, Kramer H, Haythorne E, Ashcroft FM. Binding of sulphonylureas to plasma proteins - A KATP channel perspective. PLoS One 2018; 13:e0197634. [PMID: 29772022 PMCID: PMC5957440 DOI: 10.1371/journal.pone.0197634] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/04/2018] [Indexed: 12/25/2022] Open
Abstract
Sulphonylurea drugs stimulate insulin secretion from pancreatic β-cells primarily by inhibiting ATP sensitive potassium (KATP) channels in the β-cell membrane. The effective sulphonylurea concentration at its site of action is significantly attenuated by binding to serum albumin, which makes it difficult to compare in vitro and in vivo data. We therefore measured the ability of gliclazide and glibenclamide to inhibit KATP channels and stimulate insulin secretion in the presence of serum albumin. We used this data, together with estimates of free drug concentrations from binding studies, to predict the extent of sulphonylurea inhibition of KATP channels at therapeutic concentrations in vivo. KATP currents from mouse pancreatic β-cells and Xenopus oocytes were measured using the patch-clamp technique. Gliclazide and glibenclamide binding to human plasma were determined in spiked plasma samples using an ultrafiltration-mass spectrometry approach. Bovine serum albumin (60g/l) produced a mild, non-significant reduction of gliclazide block of KATP currents in pancreatic β-cells and Xenopus oocytes. In contrast, glibenclamide inhibition of recombinant KATP channels was dramatically suppressed by albumin (predicted free drug concentration <0.1%). Insulin secretion was also reduced. Free concentrations of gliclazide and glibenclamide in the presence of human plasma measured in binding experiments were 15% and 0.05%, respectively. Our data suggest the free concentration of glibenclamide in plasma is too low to account for the drug’s therapeutic effect. In contrast, the free gliclazide concentration in plasma is high enough to close KATP channels and stimulate insulin secretion.
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Affiliation(s)
- Peter Proks
- Oxford Centre for Gene Function, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Holger Kramer
- Oxford Centre for Gene Function, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Elizabeth Haythorne
- Oxford Centre for Gene Function, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Frances M. Ashcroft
- Oxford Centre for Gene Function, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
- * E-mail:
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Beeram SR, Zheng X, Suh K, Hage DS. Characterization of solution-phase drug-protein interactions by ultrafast affinity extraction. Methods 2018; 146:46-57. [PMID: 29510250 DOI: 10.1016/j.ymeth.2018.02.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/17/2018] [Accepted: 02/22/2018] [Indexed: 11/25/2022] Open
Abstract
A number of tools based on high-performance affinity separations have been developed for studying drug-protein interactions. An example of one recent approach is ultrafast affinity extraction. This method has been employed to examine the free (or non-bound) fractions of drugs and other solutes in simple or complex samples that contain soluble binding agents. These free fractions have also been used to determine the binding constants and rate constants for the interactions of drugs with these soluble agents. This report describes the general principles of ultrafast affinity extraction and the experimental conditions under which it can be used to characterize such interactions. This method will be illustrated by utilizing data that have been obtained when using this approach to measure the binding and dissociation of various drugs with the serum transport proteins human serum albumin and alpha1-acid glycoprotein. A number of practical factors will be discussed that should be considered in the design and optimization of this approach for use with single-column or multi-column systems. Techniques will also be described for analyzing the resulting data for the determination of free fractions, rate constants and binding constants. In addition, the extension of this method to complex samples, such as clinical specimens, will be considered.
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Affiliation(s)
- Sandya R Beeram
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Xiwei Zheng
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Kyungah Suh
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
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12
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Kaur A, Banipal PK, Banipal TS. Local anesthetic-bovine serum albumin interactional behaviour: Characterization by volumetric, calorimetric, and spectroscopic methods. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.08.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Dubey RK, Leeners B, Imthurn B, Merki-Feld GS, Rosselli M. Piperine Decreases Binding of Drugs to Human Plasma and Increases Uptake by Brain Microvascular Endothelial Cells. Phytother Res 2017; 31:1868-1874. [DOI: 10.1002/ptr.5929] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/09/2017] [Accepted: 08/18/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Raghvendra K. Dubey
- Department for Reproductive Endocrinology; University Hospital Zurich; Schlieren Switzerland
- Zurich Center for Integrative Human Physiology (ZIHP); University of Zurich; Zurich Switzerland
- Department of Pharmacology and Chemical Biology; University of Pittsburgh School of Medicine; Pittsburgh PA USA
| | - Brigitte Leeners
- Department for Reproductive Endocrinology; University Hospital Zurich; Schlieren Switzerland
| | - Bruno Imthurn
- Department for Reproductive Endocrinology; University Hospital Zurich; Schlieren Switzerland
| | | | - Marinella Rosselli
- Department for Reproductive Endocrinology; University Hospital Zurich; Schlieren Switzerland
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Li Z, Hage DS. Analysis of stereoselective drug interactions with serum proteins by high-performance affinity chromatography: A historical perspective. J Pharm Biomed Anal 2017; 144:12-24. [PMID: 28094095 PMCID: PMC5505820 DOI: 10.1016/j.jpba.2017.01.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/06/2017] [Accepted: 01/10/2017] [Indexed: 01/09/2023]
Abstract
The interactions of drugs with serum proteins are often stereoselective and can affect the distribution, activity, toxicity and rate of excretion of these drugs in the body. A number of approaches based on affinity chromatography, and particularly high-performance affinity chromatography (HPAC), have been used as tools to study these interactions. This review describes the general principles of affinity chromatography and HPAC as related to their use in drug binding studies. The types of serum agents that have been examined with these methods are also discussed, including human serum albumin, α1-acid glycoprotein, and lipoproteins. This is followed by a description of the various formats based on affinity chromatography and HPAC that have been used to investigate drug interactions with serum proteins and the historical development for each of these formats. Specific techniques that are discussed include zonal elution, frontal analysis, and kinetic methods such as those that make use of band-broadening measurements, peak decay analysis, or ultrafast affinity extraction.
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Affiliation(s)
- Zhao Li
- Department of Chemistry, University of Nebraska, Lincoln, NE, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska, Lincoln, NE, USA.
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15
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Khatibi A, Keihan AH, Sheikh Hasani V. Bio thermodynamic studies of diclofenac interaction with lysozyme under various conditions using diclofenac-selective membrane electrode and molecular docking. J Biomol Struct Dyn 2016; 35:2789-2793. [DOI: 10.1080/07391102.2016.1231083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ali Khatibi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Amir Homayoun Keihan
- Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Vahid Sheikh Hasani
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
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16
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Filipic S, Ruzic D, Vucicevic J, Nikolic K, Agbaba D. Quantitative structure-retention relationship of selected imidazoline derivatives on α1-acid glycoprotein column. J Pharm Biomed Anal 2016; 127:101-11. [DOI: 10.1016/j.jpba.2016.02.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 02/18/2016] [Accepted: 02/28/2016] [Indexed: 10/22/2022]
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17
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Matthes E, Goepp J, Carlile GW, Luo Y, Dejgaard K, Billet A, Robert R, Thomas DY, Hanrahan JW. Low free drug concentration prevents inhibition of F508del CFTR functional expression by the potentiator VX-770 (ivacaftor). Br J Pharmacol 2016; 173:459-70. [PMID: 26492939 DOI: 10.1111/bph.13365] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 07/22/2015] [Accepted: 10/12/2015] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND AND PURPOSE The most common cystic fibrosis (CF) mutation F508del inhibits the gating and surface expression of CFTR, a plasma membrane anion channel. Optimal pharmacotherapies will probably require both a 'potentiator' to increase channel open probability and a 'corrector' that improves folding and trafficking of the mutant protein and its stability at the cell surface. Interaction between CF drugs has been reported but remains poorly understood. EXPERIMENTAL APPROACH CF bronchial epithelial cells were exposed to the corrector VX-809 (lumacaftor) and potentiator VX-770 (ivacaftor) individually or in combination. Functional expression of CFTR was assayed as the forskolin-stimulated short-circuit current (Isc ) across airway epithelial monolayers expressing F508del CFTR. KEY RESULTS The potentiated Isc response during forskolin stimulation was increased sixfold after pretreatment with VX-809 alone and reached ~11% that measured across non-CF monolayers. VX-770 (100 nM) and genistein (50 μM) caused similar levels of potentiation, which were not additive and were abolished by the CFTR inhibitor CFTRinh -172. The unbound fraction of VX-770 in plasma was 0.13 ± 0.04%, which together with previous measurements in patients given 250 mg p.o. twice daily, suggests a peak free plasma concentration of 1.5-8.5 nM. Chronic exposure to high VX-770 concentrations (>1 μM) inhibited functional correction by VX-809 but not in the presence of physiological protein levels (20-40 mg·mL(-1) ). Chronic exposure to a low concentration of VX-770 (100 nM) together with VX-809 (1 μM) also did not reduce the forskolin-stimulated Isc , relative to cells chronically exposed to VX-809 alone, provided it was assayed acutely using the same, clinically relevant concentration of potentiator. CONCLUSIONS AND IMPLICATIONS Chronic exposure to clinically relevant concentrations of VX-770 did not reduce F508del CFTR function. Therapeutic benefit of VX-770 + VX-809 (Orkambi) is probably limited by the efficacy of VX-809 rather than by inhibition by VX-770.
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Affiliation(s)
- Elizabeth Matthes
- Department of Physiology, McGill University, Montréal, QC, Canada.,CF Translational Research Centre, McGill University, Montréal, QC, Canada
| | - Julie Goepp
- Department of Physiology, McGill University, Montréal, QC, Canada.,CF Translational Research Centre, McGill University, Montréal, QC, Canada
| | - Graeme W Carlile
- CF Translational Research Centre, McGill University, Montréal, QC, Canada.,Department of Biochemistry, McGill University, Montréal, QC, Canada
| | - Yishan Luo
- Department of Physiology, McGill University, Montréal, QC, Canada.,CF Translational Research Centre, McGill University, Montréal, QC, Canada
| | - Kurt Dejgaard
- Department of Biochemistry, McGill University, Montréal, QC, Canada
| | - Arnaud Billet
- Department of Physiology, McGill University, Montréal, QC, Canada.,CF Translational Research Centre, McGill University, Montréal, QC, Canada
| | - Renaud Robert
- Department of Physiology, McGill University, Montréal, QC, Canada.,CF Translational Research Centre, McGill University, Montréal, QC, Canada
| | - David Y Thomas
- CF Translational Research Centre, McGill University, Montréal, QC, Canada.,Department of Biochemistry, McGill University, Montréal, QC, Canada
| | - John W Hanrahan
- Department of Physiology, McGill University, Montréal, QC, Canada.,CF Translational Research Centre, McGill University, Montréal, QC, Canada.,Research Institute of the McGill University Health Centre, Montréal, QC, Canada
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18
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Vayá I, Andreu I, Monje VT, Jiménez MC, Miranda MA. Mechanistic Studies on the Photoallergy Mediated by Fenofibric Acid: Photoreactivity with Serum Albumins. Chem Res Toxicol 2015; 29:40-6. [PMID: 26633742 DOI: 10.1021/acs.chemrestox.5b00357] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The photoreactivity of fenofibric acid (FA) in the presence of human and bovine serum albumins (HSA and BSA, respectively) has been investigated by steady-state irradiation, fluorescence, and laser flash photolysis (LFP). Spectroscopic measurements allowed for the determination of a 1:1 stoichiometry for the FA/SA complexes and pointed to a moderate binding of FA to the proteins; by contrast, the FA photoproducts were complexed more efficiently with SAs. Covalent photobinding to the protein, which is directly related to the photoallergic properties of the drug, was detected after long irradiation times and was found to be significantly higher in the case of BSA. Intermolecular FA-amino acid and FA-albumin irradiations resulted in the formation of photoproducts arising from coupling between both moieties, as indicated by mass spectrometric analysis. Mechanistic studies using model drug-amino acid linked systems indicated that the key photochemical step involved in photoallergy is formal hydrogen atom transfer from an amino acid residue to the excited benzophenone chromophore of FA or (more likely) its photoproducts. This results in the formation of caged radical pairs followed by C-C coupling to give covalent photoaducts.
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Affiliation(s)
- Ignacio Vayá
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia, Spain
| | - Inmaculada Andreu
- Unidad Mixta de Investigación IIS La Fe-UPV, Hospital Universitari i Politècnic La Fe , Avenida de Fernando Abril Martorell 106, 46026 Valencia, Spain
| | - Vicente T Monje
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia, Spain
| | - M Consuelo Jiménez
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia, Spain
| | - Miguel A Miranda
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia, Spain
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19
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Li Z, Beeram SR, Bi C, Suresh D, Zheng X, Hage DS. High-Performance Affinity Chromatography: Applications in Drug-Protein Binding Studies and Personalized Medicine. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 102:1-39. [PMID: 26827600 DOI: 10.1016/bs.apcsb.2015.09.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The binding of drugs with proteins and other agents in serum is of interest in personalized medicine because this process can affect the dosage and action of drugs. The extent of this binding may also vary with a given disease state. These interactions may involve serum proteins, such as human serum albumin or α1-acid glycoprotein, or other agents, such as lipoproteins. High-performance affinity chromatography (HPAC) is a tool that has received increasing interest as a means for studying these interactions. This review discusses the general principles of HPAC and the various approaches that have been used in this technique to examine drug-protein binding and in work related to personalized medicine. These approaches include frontal analysis and zonal elution, as well as peak decay analysis, ultrafast affinity extraction, and chromatographic immunoassays. The operation of each method is described and examples of applications for these techniques are provided. The type of information that can be obtained by these methods is also discussed, as related to the analysis of drug-protein binding and the study of clinical or pharmaceutical samples.
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Affiliation(s)
- Zhao Li
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Sandya R Beeram
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Cong Bi
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - D Suresh
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Xiwei Zheng
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
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20
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Analysis of free drug fractions in human serum by ultrafast affinity extraction and two-dimensional affinity chromatography. Anal Bioanal Chem 2015; 408:131-40. [PMID: 26462924 DOI: 10.1007/s00216-015-9082-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 09/19/2015] [Accepted: 09/24/2015] [Indexed: 12/12/2022]
Abstract
Ultrafast affinity extraction and a two-dimensional high performance affinity chromatographic system were used to measure the free fractions for various drugs in serum and at typical therapeutic concentrations. Pooled samples of normal serum or serum from diabetic patients were utilized in this work. Several drug models (i.e., quinidine, diazepam, gliclazide, tolbutamide, and acetohexamide) were examined that represented a relatively wide range of therapeutic concentrations and affinities for human serum albumin (HSA). The two-dimensional system consisted of an HSA microcolumn for the extraction of a free drug fraction, followed by a larger HSA analytical column for the further separation and measurement of this fraction. Factors that were optimized in this method included the flow rates, column sizes, and column switching times that were employed. The final extraction times used for isolating the free drug fractions were 333-665 ms or less. The dissociation rate constants for several of the drugs with soluble HSA were measured during system optimization, giving results that agreed with reference values. In the final system, free drug fractions in the range of 0.7-9.5% were measured and gave good agreement with values that were determined by ultrafiltration. Association equilibrium constants or global affinities were also estimated by this approach for the drugs with soluble HSA. The results for the two-dimensional system were obtained in 5-10 min or less and required only 1-5 μL of serum per injection. The same approach could be adapted for work with other drugs and proteins in clinical samples or for biomedical research.
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21
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Zheng X, Bi C, Li Z, Podariu M, Hage DS. Analytical methods for kinetic studies of biological interactions: A review. J Pharm Biomed Anal 2015; 113:163-80. [PMID: 25700721 PMCID: PMC4516701 DOI: 10.1016/j.jpba.2015.01.042] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 01/16/2015] [Accepted: 01/19/2015] [Indexed: 01/13/2023]
Abstract
The rates at which biological interactions occur can provide important information concerning the mechanism and behavior of these processes in living systems. This review discusses several analytical methods that can be used to examine the kinetics of biological interactions. These techniques include common or traditional methods such as stopped-flow analysis and surface plasmon resonance spectroscopy, as well as alternative methods based on affinity chromatography and capillary electrophoresis. The general principles and theory behind these approaches are examined, and it is shown how each technique can be utilized to provide information on the kinetics of biological interactions. Examples of applications are also given for each method. In addition, a discussion is provided on the relative advantages or potential limitations of each technique regarding its use in kinetic studies.
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Affiliation(s)
- Xiwei Zheng
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Cong Bi
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Zhao Li
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Maria Podariu
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA.
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22
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Ultrasonic microdialysis coupled with capillary electrophoresis electrochemiluminescence study the interaction between trimetazidine dihydrochloride and human serum albumin. Anal Chim Acta 2014; 851:37-42. [DOI: 10.1016/j.aca.2014.08.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 08/01/2014] [Accepted: 08/06/2014] [Indexed: 11/19/2022]
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23
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Zheng X, Li Z, Beeram S, Podariu M, Matsuda R, Pfaunmiller EL, White CJ, Carter N, Hage DS. Analysis of biomolecular interactions using affinity microcolumns: a review. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 968:49-63. [PMID: 24572459 PMCID: PMC4112177 DOI: 10.1016/j.jchromb.2014.01.026] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 01/16/2014] [Accepted: 01/19/2014] [Indexed: 12/15/2022]
Abstract
Affinity chromatography has become an important tool for characterizing biomolecular interactions. The use of affinity microcolumns, which contain immobilized binding agents and have volumes in the mid-to-low microliter range, has received particular attention in recent years. Potential advantages of affinity microcolumns include the many analysis and detection formats that can be used with these columns, as well as the need for only small amounts of supports and immobilized binding agents. This review examines how affinity microcolumns have been used to examine biomolecular interactions. Both capillary-based microcolumns and short microcolumns are considered. The use of affinity microcolumns with zonal elution and frontal analysis methods are discussed. The techniques of peak decay analysis, ultrafast affinity extraction, split-peak analysis, and band-broadening studies are also explored. The principles of these methods are examined and various applications are provided to illustrate the use of these methods with affinity microcolumns. It is shown how these techniques can be utilized to provide information on the binding strength and kinetics of an interaction, as well as on the number and types of binding sites. It is further demonstrated how information on competition or displacement effects can be obtained by these methods.
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Affiliation(s)
- Xiwei Zheng
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Zhao Li
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Sandya Beeram
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Maria Podariu
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Ryan Matsuda
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Erika L Pfaunmiller
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Christopher J White
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - NaTasha Carter
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
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24
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Matsuda R, Bi C, Anguizola J, Sobansky M, Rodriguez E, Vargas Badilla J, Zheng X, Hage B, Hage DS. Studies of metabolite-protein interactions: a review. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 966:48-58. [PMID: 24321277 PMCID: PMC4032809 DOI: 10.1016/j.jchromb.2013.11.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Revised: 11/14/2013] [Accepted: 11/18/2013] [Indexed: 11/25/2022]
Abstract
The study of metabolomics can provide valuable information about biochemical pathways and processes at the molecular level. There have been many reports that have examined the structure, identity and concentrations of metabolites in biological systems. However, the binding of metabolites with proteins is also of growing interest. This review examines past reports that have looked at the binding of various types of metabolites with proteins. An overview of the techniques that have been used to characterize and study metabolite-protein binding is first provided. This is followed by examples of studies that have investigated the binding of hormones, fatty acids, drugs or other xenobiotics, and their metabolites with transport proteins and receptors. These examples include reports that have considered the structure of the resulting solute-protein complexes, the nature of the binding sites, the strength of these interactions, the variations in these interactions with solute structure, and the kinetics of these reactions. The possible effects of metabolic diseases on these processes, including the impact of alterations in the structure and function of proteins, are also considered.
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Affiliation(s)
- Ryan Matsuda
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Cong Bi
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Jeanethe Anguizola
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Matthew Sobansky
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Elliott Rodriguez
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - John Vargas Badilla
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Xiwei Zheng
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Benjamin Hage
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
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25
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Analysis of drug interactions with very low density lipoprotein by high-performance affinity chromatography. Anal Bioanal Chem 2014; 406:6203-11. [PMID: 25103529 DOI: 10.1007/s00216-014-8081-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 07/23/2014] [Accepted: 07/29/2014] [Indexed: 11/30/2022]
Abstract
High-performance affinity chromatography (HPAC) was utilized to examine the binding of very low density lipoprotein (VLDL) with drugs, using R/S-propranolol as a model. These studies indicated that two mechanisms existed for the binding of R- and S-propranolol with VLDL. The first mechanism involved non-saturable partitioning of these drugs with VLDL, which probably occurred with the lipoprotein's non-polar core. This partitioning was described by overall affinity constants of 1.2 (±0.3) × 10(6) M(-1) for R-propranolol and 2.4 (±0.6) × 10(6) M(-1) for S-propranolol at pH 7.4 and 37 °C. The second mechanism occurred through saturable binding by these drugs at fixed sites on VLDL, such as represented by apolipoproteins on the surface of the lipoprotein. The association equilibrium constants for this saturable binding at 37 °C were 7.0 (±2.3) × 10(4) M(-1) for R-propranolol and 9.6 (±2.2) × 10(4) M(-1) for S-propranolol. Comparable results were obtained at 20 and 27 °C for the propranolol enantiomers. This work provided fundamental information on the processes involved in the binding of R- and S-propranolol to VLDL, while also illustrating how HPAC can be used to evaluate relatively complex interactions between agents such as VLDL and drugs or other solutes.
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26
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Chrysanthakopoulos M, Vallianatou T, Giaginis C, Tsantili-Kakoulidou A. Investigation of the retention behavior of structurally diverse drugs on alpha1 acid glycoprotein column: Insight on the molecular factors involved and correlation with protein binding data. Eur J Pharm Sci 2014; 60:24-31. [DOI: 10.1016/j.ejps.2014.04.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 02/27/2014] [Accepted: 04/24/2014] [Indexed: 12/01/2022]
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27
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Du P, Han X, Li N, Wang H, Yang S, Song Y, Shi Y. Development and validation of an ultrafiltration-UPLC-MS/MS method for rapid quantification of unbound docetaxel in human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 967:28-35. [PMID: 25063925 DOI: 10.1016/j.jchromb.2014.07.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 06/25/2014] [Accepted: 07/07/2014] [Indexed: 10/25/2022]
Abstract
Docetaxel lipid microsphere (DT-LM) is a novel formulation of docetaxel without Tween-80. A sensitive, robust and reproducible ultrafiltration (UF) followed by UPLC-MS/MS method was developed and validated for the quantification of unbound docetaxel in human plasma using paclitaxel as IS. Ultrafiltrate samples were chromatographed on Acquity UPLC BEH C18 column (50 mm × 2.1 mm, 1.7 μm). The mobile phase was a mixture of 10mM ammonium formate in water containing 0.2% formic acid (A) and acetonitrile containing 0.2% formic acid (B). The volume of plasma utilized was only 450 μL. The calibration curve was linear over the range of 0.2-200 ng/mL, with LLOQ of 0.2 ng/mL. The method was shown to be reliable and reproducible with intra- and inter-day precision and accuracy <±15%, and extraction recovery of 98.1-104.8%. Docetaxel was stable during stability studies, e.g., short term, post-preparation and freeze-thaw cycles. The validated method was utilized to support the pharmacological study of DT-LM in patients with advanced cancer.
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Affiliation(s)
- Ping Du
- Department of Medical Oncology, Cancer Institute/Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, Beijing 100021, China
| | - Xiaohong Han
- Department of Medical Oncology, Cancer Institute/Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, Beijing 100021, China
| | - Ning Li
- Department of Medical Oncology, Cancer Institute/Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, Beijing 100021, China
| | - Hongyu Wang
- Department of Medical Oncology, Cancer Institute/Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, Beijing 100021, China
| | - Sheng Yang
- Department of Medical Oncology, Cancer Institute/Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, Beijing 100021, China
| | - Yuanyuan Song
- Department of Medical Oncology, Cancer Institute/Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, Beijing 100021, China
| | - Yuankai Shi
- Department of Medical Oncology, Cancer Institute/Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, Beijing 100021, China.
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28
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Sayama H, Takubo H, Komura H, Kogayu M, Iwaki M. Application of a physiologically based pharmacokinetic model informed by a top-down approach for the prediction of pharmacokinetics in chronic kidney disease patients. AAPS JOURNAL 2014; 16:1018-28. [PMID: 24912798 DOI: 10.1208/s12248-014-9626-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Accepted: 05/19/2014] [Indexed: 01/05/2023]
Abstract
Quantitative prediction of the impact of chronic kidney disease (CKD) on drug disposition has become important for the optimal design of clinical studies in patients. In this study, clinical data of 151 compounds under CKD conditions were extensively surveyed, and alterations in pharmacokinetic parameters were evaluated. In CKD patients, the unbound hepatic intrinsic clearance decreased to a similar extent for drugs eliminated via hepatic metabolism by cytochrome P450, UDP-glucuronosyltransferase, and other mechanisms. Renal clearance showed a similar decrease to glomerular filtration rate, irrespective of the contribution of tubular secretion. The scaling factor (SF) obtained from the interquartile range of the relative change in each parameter was applied to the well-stirred model to predict clearance in patients. Hepatic and renal clearance could be successfully predicted for approximately half and two-thirds, respectively, of the applied compounds, showing the high utility of SFs. SFs were also introduced to a physiologically based pharmacokinetic (PBPK) model, and the plasma concentration profiles of 12 model compounds with different elimination pathways were predicted for CKD patients. The PBPK model combined with SFs provided good predictability for plasma concentration. The developed PBPK model with information on SFs would accelerate translational research in drug development by predicting pharmacokinetics in CKD patients.
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Affiliation(s)
- Hiroyuki Sayama
- Drug Metabolism & Pharmacokinetics Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Osaka, Japan,
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29
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Yeggoni DP, Gokara M, Mark Manidhar D, Rachamallu A, Nakka S, Reddy CS, Subramanyam R. Binding and Molecular Dynamics Studies of 7-Hydroxycoumarin Derivatives with Human Serum Albumin and Its Pharmacological Importance. Mol Pharm 2014; 11:1117-31. [DOI: 10.1021/mp500051f] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | | | - Darla Mark Manidhar
- Department
of Chemistry, Sri Venkateswara University, Tirupathi, Andhra Pradesh 517502, India
| | | | | | - Cirandur Suresh Reddy
- Department
of Chemistry, Sri Venkateswara University, Tirupathi, Andhra Pradesh 517502, India
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30
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Vayá I, Lhiaubet-Vallet V, Jiménez MC, Miranda MA. Photoactive assemblies of organic compounds and biomolecules: drug–protein supramolecular systems. Chem Soc Rev 2014; 43:4102-22. [DOI: 10.1039/c3cs60413f] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Modification of the drug excited state properties within proteins provides information on binding and may result in a different photoreactivity.
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Affiliation(s)
- Ignacio Vayá
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC
- Universitat Politècnica de València
- E-46071 Valencia, Spain
| | - Virginie Lhiaubet-Vallet
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC
- Universitat Politècnica de València
- E-46071 Valencia, Spain
| | - M. Consuelo Jiménez
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC
- Universitat Politècnica de València
- E-46071 Valencia, Spain
| | - Miguel A. Miranda
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC
- Universitat Politècnica de València
- E-46071 Valencia, Spain
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31
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Haouala A, Widmer N, Guidi M, Montemurro M, Leyvraz S, Buclin T, Eap CB, Decosterd LA, Csajka C. Prediction of free imatinib concentrations based on total plasma concentrations in patients with gastrointestinal stromal tumours. Br J Clin Pharmacol 2013; 75:1007-18. [PMID: 22891806 DOI: 10.1111/j.1365-2125.2012.04422.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Accepted: 07/24/2012] [Indexed: 11/28/2022] Open
Abstract
AIM Total imatinib concentrations are currently measured for the therapeutic drug monitoring of imatinib, whereas only free drug equilibrates with cells for pharmacological action. Due to technical and cost limitations, routine measurement of free concentrations is generally not performed. In this study, free and total imatinib concentrations were measured to establish a model allowing the confident prediction of imatinib free concentrations based on total concentrations and plasma proteins measurements. METHODS One hundred and fifty total and free plasma concentrations of imatinib were measured in 49 patients with gastrointestinal stromal tumours. A population pharmacokinetic model was built up to characterize mean total and free concentrations with inter-patient and intrapatient variability, while taking into account α1 -acid glycoprotein (AGP) and human serum albumin (HSA) concentrations, in addition to other demographic and environmental covariates. RESULTS A one compartment model with first order absorption was used to characterize total and free imatinib concentrations. Only AGP influenced imatinib total clearance. Imatinib free concentrations were best predicted using a non-linear binding model to AGP, with a dissociation constant Kd of 319 ng ml(-1) , assuming a 1:1 molar binding ratio. The addition of HSA in the equation did not improve the prediction of imatinib unbound concentrations. CONCLUSION Although free concentration monitoring is probably more appropriate than total concentrations, it requires an additional ultrafiltration step and sensitive analytical technology, not always available in clinical laboratories. The model proposed might represent a convenient approach to estimate imatinib free concentrations. However, therapeutic ranges for free imatinib concentrations remain to be established before it enters into routine practice.
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Affiliation(s)
- Amina Haouala
- Division of Clinical Pharmacology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
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32
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Shen Q, Wang L, Zhou H, Jiang HD, Yu LS, Zeng S. Stereoselective binding of chiral drugs to plasma proteins. Acta Pharmacol Sin 2013; 34:998-1006. [PMID: 23852086 PMCID: PMC3733166 DOI: 10.1038/aps.2013.78] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 05/17/2013] [Indexed: 12/15/2022] Open
Abstract
Chiral drugs show distinct biochemical and pharmacological behaviors in the human body. The binding of chiral drugs to plasma proteins usually exhibits stereoselectivity, which has a far-reaching influence on their pharmacological activities and pharmacokinetic profiles. In this review, the stereoselective binding of chiral drugs to human serum albumin (HSA), α1-acid glycoprotein (AGP) and lipoprotein, three most important proteins in human plasma, are detailed. Furthermore, the application of AGP variants and recombinant fragments of HSA for studying enantiomer binding properties is also discussed. Apart from the stereoselectivity of enantiomer-protein binding, enantiomer-enantiomer interactions that may induce allosteric effects are also described. Additionally, the techniques and methods used to determine drug-protein binding parameters are briefly reviewed.
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Vallianatou T, Lambrinidis G, Tsantili-Kakoulidou A. In silicoprediction of human serum albumin binding for drug leads. Expert Opin Drug Discov 2013; 8:583-95. [DOI: 10.1517/17460441.2013.777424] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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35
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Determination of free and total valproic acid in human plasma by capillary electrophoresis with contactless conductivity detection. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 907:74-8. [DOI: 10.1016/j.jchromb.2012.08.037] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 08/27/2012] [Accepted: 08/29/2012] [Indexed: 11/21/2022]
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36
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Sobansky MR, Hage DS. Identification and analysis of stereoselective drug interactions with low-density lipoprotein by high-performance affinity chromatography. Anal Bioanal Chem 2012; 403:563-71. [PMID: 22354572 DOI: 10.1007/s00216-012-5816-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 01/21/2012] [Accepted: 01/31/2012] [Indexed: 11/27/2022]
Abstract
Columns containing immobilized low-density lipoprotein (LDL) were prepared for the analysis of drug interactions with this agent by high-performance affinity chromatography (HPAC). R/S-Propranolol was used as a model drug for this study. The LDL columns gave reproducible binding to propranolol over 60 h of continuous use in the presence of pH 7.4 0.067 M potassium phosphate buffer. Experiments conducted with this type of column through frontal analysis indicated that two types of interactions were occurring between R-propranolol and LDL, while only a single type of interaction was observed between S-propranolol and LDL. The first type of interaction, which was seen for both enantiomers, involved non-saturable binding; this interaction had an overall affinity (nK(a)) of 1.9 (±0.1) × 10(5) M(-1) for R-propranolol and 2.7 (±0.2) × 10(5) M(-1) for S-propranolol at 37 °C. The second type of interaction was observed only for R-propranolol and involved saturable binding that had an association equilibrium constant (K(a)) of 5.2 (±2.3) × 10(5) M(-1) at 37 °C. Similar differences in binding behavior were found for the two enantiomers at 20 °C and 27 °C. This is the first known example of stereoselective binding of drugs by LDL or other lipoproteins. This work also illustrates the ability of HPAC to be used as a tool for characterizing mixed-mode interactions that involve LDL and related binding agents.
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Affiliation(s)
- Matthew R Sobansky
- Chemistry Department, University of Nebraska, Lincoln, NE 68588-0304, USA
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37
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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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38
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Development of a negligible depletion-solid phase microextraction method to determine the free concentration of chlorpromazine in aqueous samples containing albumin. J Chromatogr A 2011; 1218:8529-35. [DOI: 10.1016/j.chroma.2011.09.064] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 08/31/2011] [Accepted: 09/22/2011] [Indexed: 11/20/2022]
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39
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Li W, Lin H, Smith HT, Tse FL. Developing a robust ultrafiltration-LC–MS/MS method for quantitative analysis of unbound vadimezan (ASA404) in human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:1927-33. [DOI: 10.1016/j.jchromb.2011.05.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 04/29/2011] [Accepted: 05/08/2011] [Indexed: 10/18/2022]
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40
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Hage DS, Anguizola JA, Jackson AJ, Matsuda R, Papastavros E, Pfaunmiller E, Tong Z, Vargas-Badilla J, Yoo MJ, Zheng X. CHROMATOGRAPHIC ANALYSIS OF DRUG INTERACTIONS IN THE SERUM PROTEOME. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2011; 3:10.1039/C1AY05068K. [PMID: 24223625 PMCID: PMC3820373 DOI: 10.1039/c1ay05068k] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The binding of drugs with serum proteins and binding agents such as human serum albumin, α1-acid glycoprotein, and lipoproteins is an important process in determining the activity and fate of many pharmaceuticals in the body. A variety of techniques have been used to study drug interactions with serum proteins, but there is still a need for faster or better methods for such work. High-performance liquid chromatography (HPLC) is one tool that has been utilized in many formats for these types of measurements. Advantages of using HPLC for this application include its speed and precision, its ability to be automated, its good limits of detection, and its compatibility with a wide range of assay formats and detectors. This review will discuss various approaches in which HPLC can be employed for the study of drug-protein interactions. These techniques include the use of soluble proteins in zonal elution and frontal analysis methods or vacancy techniques such as the Hummel-Dreyer method. Zonal elution and frontal analysis methods that make use of immobilized proteins and high-performance affinity chromatography will also be presented. A variety of applications will be examined, ranging from the determination of free drug fractions to the measurement of the strength or rate of a drug-protein interaction. Newer developments that will be discussed include recent work in the creation of novel mathematical approaches for HPLC studies of drug-protein binding, the use of HPLC methods for the high-throughput screening of drug-protein binding, and the creation and use of affinity monoliths or affinity microcolumns for examining drug-protein systems.
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Affiliation(s)
- David S. Hage
- Chemistry Department, University of Nebraska, Lincoln, NE USA
| | | | - Abby J. Jackson
- Chemistry Department, University of Nebraska, Lincoln, NE USA
| | - Ryan Matsuda
- Chemistry Department, University of Nebraska, Lincoln, NE USA
| | | | | | - Zenghan Tong
- Chemistry Department, University of Nebraska, Lincoln, NE USA
| | | | - Michelle J. Yoo
- Chemistry Department, University of Nebraska, Lincoln, NE USA
| | - Xiwei Zheng
- Chemistry Department, University of Nebraska, Lincoln, NE USA
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41
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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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42
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Plise EG, Tran D, Salphati L. Semi-automated protein binding methodology using equilibrium dialysis and a novel mixed-matrix cassette approach. J Pharm Sci 2011; 99:5070-8. [PMID: 20821380 DOI: 10.1002/jps.22188] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A semi-automated protein binding assay using equilibrium dialysis (ED) and a novel mixed-matrix methodology has been developed. This method decreases mass spectrometer run time and reduces the likelihood of experimental artifacts. In this cassette-based approach, a single matrix is prepared following dialysis by mixing dialyzed plasma and buffer containing different test compounds from the same dialysis plate. This approach differs from the traditional mixed-matrix method where fresh plasma and fresh buffer are mixed with opposing dialyzed samples. This new mixed-matrix methodology is compatible with various high-throughput ED and ultrafiltration devices, many liquid handling systems, and can be used for plasma, serum, albumin, alpha-1 acid glycoprotein, microsomal, and fine tissue homogenate binding studies. The utility of the method can be further enhanced by varying the number of replicates, concentrations, and matrices with simple modifications. Using 29 structurally diverse marketed drugs with a wide range of protein binding values reported in the literature, we have shown the new procedure reduces the total number of samples by nearly half compared to traditional methods, eliminates the need for standard curves, and increases the uniformity of the sample matrix for LC/MS/MS analysis.
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Affiliation(s)
- Emile G Plise
- Drug Metabolism and Pharmacokinetics Department, Genentech, Inc., South San Francisco, California 94080, USA
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43
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Salih MRM, Bahari MB, Abd AY. Selected pharmacokinetic issues of the use of antiepileptic drugs and parenteral nutrition in critically ill patients. Nutr J 2010; 9:71. [PMID: 21194458 PMCID: PMC3022641 DOI: 10.1186/1475-2891-9-71] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Accepted: 12/31/2010] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES To conduct a systematic review for the evidence supporting or disproving the reality of parenteral nutrition- antiepileptic drugs interaction, especially with respect to the plasma protein-binding of the drug. METHODS The articles related to the topic were identified through Medline and PubMed search (1968-Feburary 2010) for English language on the interaction between parenteral nutrition and antiepileptic drugs; the search terms used were anti-epileptic drugs, parenteral nutrition, and/or interaction, and/or in vitro. The search looked for prospective randomized and nonrandomized controlled studies; prospective nonrandomized uncontrolled studies; retrospective studies; case reports; and in vitro studies. Full text of the articles were then traced from the Universiti Sains Malaysia (USM) library subscribed databases, including Wiley-Blackwell Library, Cochrane Library, EBSCOHost, OVID, ScienceDirect, SAGE Premier, Scopus, SpringerLINK, and Wiley InterScience. The articles from journals not listed by USM library were traced through inter library loan. RESULTS There were interactions between parenteral nutrition and drugs, including antiepileptics. Several guidelines were designed for the management of illnesses such as traumatic brain injuries or cancer patients, involving the use of parenteral nutrition and antiepileptics. Moreover, many studies demonstrated the in vitro and in vivo parenteral nutrition -drugs interactions, especially with antiepileptics. CONCLUSIONS There was no evidence supporting the existence of parenteral nutrition-antiepileptic drugs interaction. The issue has not been studied in formal researches, but several case reports and anecdotes demonstrate this drug-nutrition interaction. However, alteration in the drug-free fraction result from parenteral nutrition-drug (i.e. antiepileptics) interactions may necessitate scrupulous reassessment of drug dosages in patients receiving these therapies. This reassessment may be particularly imperative in certain clinical situations characterized by hypoalbuminemia (e.g., burn patients).
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Affiliation(s)
- Muhannad RM Salih
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Mohd Baidi Bahari
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Arwa Y Abd
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
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44
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Asensi-Bernardi L, Martin-Biosca Y, Villanueva-Camañas RM, Medina-Hernández MJ, Sagrado Vives S. Evaluation of enantioselective binding of fluoxetine to human serum albumin by ultrafiltration and CE - Experimental design and quality considerations. Electrophoresis 2010; 31:3268-80. [DOI: 10.1002/elps.201000250] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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45
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Alonso R, Yamaji M, Jiménez MC, Miranda MA. Enhanced Photostability of the Anthracene Chromophore in Aqueous Medium upon Protein Encapsulation. J Phys Chem B 2010; 114:11363-9. [DOI: 10.1021/jp104900r] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rafael Alonso
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universidad Politécnica de Valencia, Camino de Vera s/n, E-46022 Valencia, Spain
| | - Minoru Yamaji
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universidad Politécnica de Valencia, Camino de Vera s/n, E-46022 Valencia, Spain
| | - M. Consuelo Jiménez
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universidad Politécnica de Valencia, Camino de Vera s/n, E-46022 Valencia, Spain
| | - Miguel A. Miranda
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universidad Politécnica de Valencia, Camino de Vera s/n, E-46022 Valencia, Spain
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Mallik R, Yoo MJ, Briscoe CJ, Hage DS. Analysis of drug-protein binding by ultrafast affinity chromatography using immobilized human serum albumin. J Chromatogr A 2010; 1217:2796-803. [PMID: 20227701 DOI: 10.1016/j.chroma.2010.02.026] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2009] [Revised: 02/08/2010] [Accepted: 02/16/2010] [Indexed: 11/30/2022]
Abstract
Human serum albumin (HSA) was explored for use as a stationary phase and ligand in affinity microcolumns for the ultrafast extraction of free drug fractions and the use of this information for the analysis of drug-protein binding. Warfarin, imipramine, and ibuprofen were used as model analytes in this study. It was found that greater than 95% extraction of all these drugs could be achieved in as little as 250 ms on HSA microcolumns. The retained drug fraction was then eluted from the same column under isocratic conditions, giving elution in less than 40 s when working at 4.5 mL/min. The chromatographic behavior of this system gave a good fit with that predicted by computer simulations based on a reversible, saturable model for the binding of an injected drug with immobilized HSA. The free fractions measured by this method were found to be comparable to those determined by ultrafiltration, and equilibrium constants estimated by this approach gave good agreement with literature values. Advantages of this method include its speed and the relatively low cost of microcolumns that contain HSA. The ability of HSA to bind many types of drugs also creates the possibility of using the same affinity microcolumn to study and measure the free fractions for a variety of pharmaceutical agents. These properties make this technique appealing for use in drug-binding studies and in the high-throughput screening of new drug candidates.
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Affiliation(s)
- Rangan Mallik
- Chemistry Department, University of Nebraska, Lincoln, NE 68588-0304, USA
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47
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Chen S, Sobansky MR, Hage DS. Analysis of drug interactions with high-density lipoprotein by high-performance affinity chromatography. Anal Biochem 2009; 397:107-14. [PMID: 19833090 DOI: 10.1016/j.ab.2009.10.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Revised: 10/02/2009] [Accepted: 10/09/2009] [Indexed: 10/20/2022]
Abstract
Columns containing immobilized lipoproteins were prepared for the analysis of drug interactions with these particles by high-performance affinity chromatography (HPAC). This approach was evaluated by using it to examine the binding of high-density lipoprotein (HDL) to the drugs propranolol and verapamil. HDL was immobilized by the Schiff base method onto silica and gave HPAC columns with reproducible binding to propranolol over 4-5days of continuous operation at pH 7.4. Frontal analysis experiments indicated that two types of interaction were occurring between R- or S-propranolol and HDL at 37 degrees C: saturable binding with an association equilibrium constant (K(a)) of 1.1-1.9x10(5)M(-1) and nonsaturable binding with an overall affinity constant (n K(a)) of 3.7-4.1x10(4)M(-1). Similar results were found at 4 and 27 degrees C. Verapamil also gave similar behavior, with a K(a) of 6.0x10(4) M(-1) at 37 degrees C for the saturable sites and an n K(a) for the nonsaturable sites of 2.5x10(4)M(-1). These measured affinities gave good agreement with solution phase values. The results indicated that HPAC can be used to study drug interactions with HDL, providing information that should be valuable in obtaining a better description of how drugs are transported within the body.
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Affiliation(s)
- Sike Chen
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588-0304, USA
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48
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Yang Z, Lv ZH, Jiang TF, Wang YH. Affinity CE Determination of the Binding Constant of Bioactive Sulfated Polysaccharide 916 to Human Serum Albumin. Chromatographia 2009. [DOI: 10.1365/s10337-009-1177-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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49
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Escuder-Gilabert L, Martínez-Gómez MA, Villanueva-Camañas RM, Sagrado S, Medina-Hernández MJ. Microseparation techniques for the study of the enantioselectivity of drug-plasma protein binding. Biomed Chromatogr 2009; 23:225-38. [DOI: 10.1002/bmc.1134] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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50
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Hage DS, Jackson A, Sobansky MR, Schiel JE, Yoo MJ, Joseph KS. Characterization of drug-protein interactions in blood using high-performance affinity chromatography. J Sep Sci 2009; 32:835-53. [PMID: 19278006 PMCID: PMC2771590 DOI: 10.1002/jssc.200800640] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The binding of drugs with proteins in blood, serum, or plasma is an important process in determining the activity, distribution, rate of excretion, and toxicity of drugs in the body. High-performance affinity chromatography (HPAC) has received a great deal of interest as a means for studying these interactions. This review examines the various techniques that have been used in HPAC to examine drug-protein binding and discusses the types of information that can be obtained through this approach. A comparison of these techniques with traditional methods for binding studies (e.g., equilibrium dialysis and ultrafiltration) will also be presented. The use of HPAC with specific serum proteins and binding agents will then be discussed, including HSA and alpha(1)-acid glycoprotein (AGP). Several examples from the literature are provided to illustrate the applications of such research. Recent developments in this field are also described, such as the use of improved immobilization techniques, new data analysis methods, techniques for working directly with complex biological samples, and work with immobilized lipoproteins. The relative advantages and limitations of the methods that are described will be considered and the possible use of these techniques in the high-throughput screening or characterization of drug-protein binding will be discussed.
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Affiliation(s)
- David S Hage
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588-0304, USA.
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