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Zhang Y, Zhang H, Chan DWH, Ma Y, Lu A, Yu S, Zhang B, Zhang G. Strategies for developing long-lasting therapeutic nucleic acid aptamer targeting circulating protein: The present and the future. Front Cell Dev Biol 2022; 10:1048148. [PMID: 36393853 PMCID: PMC9664076 DOI: 10.3389/fcell.2022.1048148] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 10/20/2022] [Indexed: 08/09/2023] Open
Abstract
Aptamers are short, single-stranded DNA or RNA oligonucleotide sequences that can bind specific targets. The molecular weight of aptamers (<20 kDa) is lower than the renal filtration threshold (30∼50 kDa), resulting in very short half-lives in vivo, which limit their druggability. The development of long-lasting modification approaches for aptamers can help address the druggability bottleneck of aptamers. This review summarized two distinct kinds of long-lasting modification approaches for aptamers, including macromolecular modification and low-molecular-weight modification. Though it is a current approach to extend the half-life of aptamers, the macromolecular modification approach could limit the space for the dosage increases, thus causing potential compliance concerns due to large molecular weight. As for the other modification approach, the low-molecular-weight modification approach, which uses low molecular weight coupling agents (LMWCAs) to modify aptamers, could greatly increase the proportion of aptamer moiety. However, some LMWCAs could bind to other proteins, causing a decrease in the drug amounts in blood circulation. Given these issues, the outlook for the next generation of long-lasting modification approaches was proposed at the end, including improving the administration method to increase dosage for aptamer drugs modified by macromolecule and developing Artificial intelligence (AI)-based strategies for optimization of LMWCAs.
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Affiliation(s)
- Yihao Zhang
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China
| | - Huarui Zhang
- School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Daniel Wing Ho Chan
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China
| | - Yuan Ma
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China
- Institute of Integrated Bioinfomedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China
- Institute of Precision Medicine and Innovative Drug Discovery, HKBU Institute for Research and Continuing Education, Shenzhen, China
| | - Aiping Lu
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China
- Institute of Integrated Bioinfomedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China
- Institute of Precision Medicine and Innovative Drug Discovery, HKBU Institute for Research and Continuing Education, Shenzhen, China
| | - Sifan Yu
- School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Baoting Zhang
- School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Ge Zhang
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China
- Institute of Integrated Bioinfomedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China
- Institute of Precision Medicine and Innovative Drug Discovery, HKBU Institute for Research and Continuing Education, Shenzhen, China
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2
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Hammami R, Bahloul A, Charfeddine S, Gargouri R, Ellouze T, Abid L, Triki F, Kammoun S, Mrad IB, Amor HIH. [Maladies cardiaques et Ramadan : revue de la littérature]. Ann Cardiol Angeiol (Paris) 2022; 71:166-172. [PMID: 35039144 DOI: 10.1016/j.ancard.2021.09.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 09/07/2021] [Indexed: 12/23/2022]
Abstract
We review the literature on the safety of fasting in cardiac patients. We examined the changes of blood pressure among hypertensive patients and the incidence of cardiac events during Ramadan in patients with coronary disease and heart failure. We also assess the modifications of INR levels in cardiac patients who take oral anticoagulant. We found that Ramadan fasting is safe in stable cardiac patients, even under several drugs. Fasting does not affect blood pressure. There is no difference in regards to cardiac event incidence between Ramadan and the non-fasting-months. The level of INR is slightly higher when fasting, it is thus recommended to monitor patients with high bleeding risk during Ramadan.
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Affiliation(s)
- Rania Hammami
- Cardiology department, Hedi Chaker Hospital, Research Unit RU17ES37, Sfax Faculty of Medecine, Sfax, Tunisia.
| | - Amine Bahloul
- Cardiology department, Hedi Chaker Hospital, Research Unit RU17ES37, Sfax Faculty of Medecine, Sfax, Tunisia.
| | - Selma Charfeddine
- Cardiology department, Hedi Chaker Hospital, Research Unit RU17ES37, Sfax Faculty of Medecine, Sfax, Tunisia.
| | - Rania Gargouri
- Cardiology department, Hedi Chaker Hospital, Research Unit RU17ES37, Sfax Faculty of Medecine, Sfax, Tunisia.
| | - Tarek Ellouze
- Cardiology department, Hedi Chaker Hospital, Research Unit RU17ES37, Sfax Faculty of Medecine, Sfax, Tunisia.
| | - Leila Abid
- Cardiology department, Hedi Chaker Hospital, Research Unit RU17ES37, Sfax Faculty of Medecine, Sfax, Tunisia.
| | - Faten Triki
- Cardiology department, Hedi Chaker Hospital, Research Unit RU17ES37, Sfax Faculty of Medecine, Sfax, Tunisia.
| | - Samir Kammoun
- Cardiology department, Hedi Chaker Hospital, Research Unit RU17ES37, Sfax Faculty of Medecine, Sfax, Tunisia.
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3
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Guzzi R, Bartucci R. Interactive multiple binding of oleic acid, warfarin and ibuprofen with human serum albumin revealed by thermal and fluorescence studies. EUROPEAN BIOPHYSICS JOURNAL : EBJ 2022; 51:41-49. [PMID: 35048131 DOI: 10.1007/s00249-021-01582-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/23/2021] [Accepted: 12/04/2021] [Indexed: 06/14/2023]
Abstract
Human serum albumin binds a wide variety of drugs with different structure and affinity to two main binding sites, drug site 1 (DS1) and drug site 2 (DS2), which partially or totally overlap with fatty acid (FA) sites. Although multiple binding sites are available for endogenous compounds, FAs are the primary physiological ligands of albumin and their competition in the occupancy of DS1 and DS2 affects the binding of exogenous molecules, with a possible impact on drug delivery. In this work, we have investigated the simultaneous binding of oleic acid, warfarin and ibuprofen to albumin using differential scanning calorimetry and fluorescence to evaluate the impact on the conformational stability of the protein. The two drugs are widely used for their anticoagulant (warfarin) and anti-inflammatory (ibuprofen) properties, and can be also considered as site markers to probe DS1 and DS2, respectively. Oleic acid is one of the most important fatty acids from a physiological point of view for its role as a source of energy for cells, and also it binds albumin with the highest association constant. When complexed with oleic acid the calorimetric profile of albumin shows a biphasic trend whose line shape depends on the ligand concentration. The binding capacity of either warfarin or ibuprofen to albumin is modulated by oleate molecules in a concentration-dependent mode being synergic cooperative (warfarin) or competitive-like (ibuprofen). The overall results provide insights on the dynamics of albumin/ligands complex, which in turn may have important pharmacokinetic and pharmacodynamic implications.
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Affiliation(s)
- Rita Guzzi
- Department of Physics, Molecular Biophysics Laboratory, University of Calabria, 87036, Rende, Italy.
- CNR-NANOTEC, Licryl-UOS Cosenza and CEMIF.Cal, Department of Physics, University of Calabria, 87036, Rende, Italy.
| | - Rosa Bartucci
- Department of Physics, Molecular Biophysics Laboratory, University of Calabria, 87036, Rende, Italy
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036, Rende, Italy
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4
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Kalhor HR, Taghikhani E. Probe into the Molecular Mechanism of Ibuprofen Interaction with Warfarin Bound to Human Serum Albumin in Comparison to Ascorbic and Salicylic Acids: Allosteric Inhibition of Anticoagulant Release. J Chem Inf Model 2021; 61:4045-4057. [PMID: 34292735 DOI: 10.1021/acs.jcim.1c00352] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The release of anticoagulant drugs such as warfarin from human serum albumin (HSA) has been important not only mechanistically but also clinically for patients who take multiple drugs simultaneously. In this study, the role of some commonly used drugs, including s-ibuprofen, ascorbic acid, and salicylic acid, was investigated in the release of warfarin bound to HSA in silico. The effects of the aforementioned drugs on the HSA-warfarin complex were investigated with molecular dynamics (MD) simulations using two approaches; in the first perspective, molecular docking was used to model the interaction of each drug with the HSA-warfarin complex, and in the second approach, drugs were positioned randomly and distant from the binary complex (HSA-warfarin) in a physiologically relevant concentration. The results obtained from both approaches indicated that s-ibuprofen and ascorbic acid both displayed allosteric effects on the release of warfarin from HSA. Although ascorbic acid aided in warfarin release, leading to destabilization of HSA, ibuprofen demonstrated a stabilizing effect on releasing the anticoagulant drug through several noncovalent interactions, including hydrophobic, electrostatic, and hydrogen-bonding interactions with the protein. The calculated binding free energy and energy contribution of involved residues using the molecular mechanics-Poisson Boltzmann surface area (MM-PBSA) method, along with root mean square deviation (RMSD) values, protein gyration, and free energy surface (FES) mapping of the protein, provided valuable details on the nature of the interactions of each drug on the release of warfarin from HSA. These results can provide important information on the mechanisms of anticoagulant release that has not been revealed in molecular details previously.
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Affiliation(s)
- Hamid Reza Kalhor
- Biochemistry Research Laboratory, Chemistry Department, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
| | - Elham Taghikhani
- Biochemistry Research Laboratory, Chemistry Department, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
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Jayaraj A, Schwanz HA, Spencer DJ, Bhasin S, Hamilton JA, Jayaram B, Goldman AL, Krishna M, Krishnan M, Shah A, Jin Z, Krenzel E, Nair SN, Ramesh S, Guo W, Wagner G, Arthanari H, Peng L, Lawney B, Jasuja R. Allosterically Coupled Multisite Binding of Testosterone to Human Serum Albumin. Endocrinology 2021; 162:5944062. [PMID: 33125473 PMCID: PMC7774055 DOI: 10.1210/endocr/bqaa199] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Indexed: 12/25/2022]
Abstract
Human serum albumin (HSA) acts as a carrier for testosterone, other sex hormones, fatty acids, and drugs. However, the dynamics of testosterone's binding to HSA and the structure of its binding sites remain incompletely understood. Here, we characterize the dynamics of testosterone's binding to HSA and the stoichiometry and structural location of the binding sites using 2-dimensional nuclear magnetic resonance (2D NMR), fluorescence spectroscopy, 4,4'-dianilino-1,1'-binaphthyl-5,5'-disulfonic acid dipotassium salt partitioning, and equilibrium dialysis, complemented by molecular modeling. 2D NMR studies showed that testosterone competitively displaced 18-[13C]-oleic acid from at least 3 known fatty acid binding sites on HSA that also bind many drugs. Binding isotherms of testosterone's binding to HSA generated using fluorescence spectroscopy and equilibrium dialysis were nonlinear and the apparent dissociation constant varied with different concentrations of testosterone and HSA. The binding isotherms neither conformed to a linear binding model with 1:1 stoichiometry nor to 2 independent binding sites; the binding isotherms were most consistent with 2 or more allosterically coupled binding sites. Molecular dynamics studies revealed that testosterone's binding to fatty acid binding site 3 on HSA was associated with conformational changes at site 6, indicating that residues in in these 2 distinct binding sites are allosterically coupled. There are multiple, allosterically coupled binding sites for testosterone on HSA. Testosterone shares these binding sites on HSA with free fatty acids, which could displace testosterone from HSA under various physiological states or disease conditions, affecting its bioavailability.
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Affiliation(s)
- Abhilash Jayaraj
- Department of Chemistry, Bioinformatics and Computational Biology, Kusuma School of Biological Sciences, Indian Institute of Technology, New Delhi, India
| | - Heidi A Schwanz
- Department of Biophysics, Boston University School of Medicine, Boston, MA, USA
| | - Daniel J Spencer
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Shalender Bhasin
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - James A Hamilton
- Department of Biophysics, Boston University School of Medicine, Boston, MA, USA
| | - B Jayaram
- Department of Chemistry, Bioinformatics and Computational Biology, Kusuma School of Biological Sciences, Indian Institute of Technology, New Delhi, India
| | - Anna L Goldman
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Meenakshi Krishna
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Maya Krishnan
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Aashay Shah
- Division of Medicinal and Natural Products Chemistry, Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, USA
| | - Zhendong Jin
- Division of Medicinal and Natural Products Chemistry, Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, USA
| | - Eileen Krenzel
- Department of Biophysics, Boston University School of Medicine, Boston, MA, USA
| | - Sashi N Nair
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Sid Ramesh
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Wen Guo
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Gerhard Wagner
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Haribabu Arthanari
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Liming Peng
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Brian Lawney
- Department of Biostatistics, Harvard School of Public Health, Boston, MA, USA
| | - Ravi Jasuja
- Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Correspondence: Ravi Jasuja, Research Program in Men’s Health: Aging and Metabolism, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115. E-mail:
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Bteich M, Poulin P, Haddad S. The potential protein-mediated hepatic uptake: discussion on the molecular interactions between albumin and the hepatocyte cell surface and their implications for the in vitro-to-in vivo extrapolations of hepatic clearance of drugs. Expert Opin Drug Metab Toxicol 2019; 15:633-658. [DOI: 10.1080/17425255.2019.1640679] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Michel Bteich
- Department of Environmental and Occupational Health, School of Public Health, Université de Montréal, Montreal, Quebec, Canada
| | - Patrick Poulin
- Department of Environmental and Occupational Health, School of Public Health, Université de Montréal, Montreal, Quebec, Canada
- Consultant Patrick Poulin Inc., Québec city, Canada
| | - Sami Haddad
- Department of Environmental and Occupational Health, School of Public Health, Université de Montréal, Montreal, Quebec, Canada
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7
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Jaunet-Lahary T, Vercauteren DP, Fleury F, Laurent AD. Computational simulations determining disulfonic stilbene derivative bioavailability within human serum albumin. Phys Chem Chem Phys 2019; 20:18020-18030. [PMID: 29931001 DOI: 10.1039/c8cp00704g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Disulfonic stilbene (DS) derivatives are a member of the large family of compounds widely employed in medicine and biology as modulators for membrane transporters or inhibitors of a protein involved in DNA repair. They constitute interesting compounds that have not yet been investigated within the bioavailability framework. No crystallographic structures exist involving such compounds embedded in the most common drug carrier, human serum albumin (HSA). The present work studies, for the first time, the physico-chemical features driving the inclusion of three DS derivatives (amino, nitro and acetamido, named DADS, DNDS and DATDS, respectively) within the four common HSA binding sites using combined molecular docking and molecular dynamics simulations. A careful analysis of each ligand within each of the studied binding sites is carried out, highlighting specific interactions and key residues playing a role in stabilizing the ligand within each pocket. The comparison between DADS, DNDS and DATDS reveals that depending on the binding site, the conclusions are rather different. For instance, the IB binding site shows a specificity to DADS compounds while IIIA is the most favorable site for DNDS and DATDS.
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Affiliation(s)
- Titouan Jaunet-Lahary
- Laboratoire CEISAM - UMR CNRS 6230, Université de Nantes, 2 Rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France.
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Das M, Chaudhuri SR, Basak D, Dasgupta S, Ray D. Inhibition of ligand arm hydrolysis and carboxylate coordination directed formation of μ4-oxido-bridged [Cu4] complexes: Synthesis, X-ray structure and functional activity. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.10.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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9
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Asada M, Nagata M, Mizuno T, Uchida T, Kurashima N, Takahashi H, Makita K, Arai H, Echizen H, Yasuhara M. Effects of cardiopulmonary bypass on the disposition of cefazolin in patients undergoing cardiothoracic surgery. Pharmacol Res Perspect 2018; 6:e00440. [PMID: 30410768 PMCID: PMC6218359 DOI: 10.1002/prp2.440] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 09/27/2018] [Accepted: 10/02/2018] [Indexed: 11/21/2022] Open
Abstract
The aim of the study was to evaluate the disposition of plasma unbound cefazolin in patients undergoing cardiothoracic surgery with cardiopulmonary bypass (CPB). Adult patients undergoing cardiothoracic surgery with CPB were enrolled in the study. Cefazolin sodium was given intravenously before skin incision (1 g) and at the beginning of CPB (2 g). Thereafter, an additional dose (1 g) was given every 4 hours. Seven to ten blood samples were collected before and during surgery. Plasma total and unbound (ultrafiltrated) cefazolin concentrations were analyzed using an HPLC-UV method. Plasma protein binding was analyzed with the Langmuir model. Twenty-seven patients (aged 70 ± 12 years, body weight 62 ± 12 kg, mean ± SD) with GFR >30 mL min-1 completed the study. There was a significant (P < 0.001) increase in median plasma unbound fraction of cefazolin from 21% before skin incision to 45% during CPB (P < 0.001), which was accompanied by a significant (P < 0.001) reduction in median plasma albumin concentration from 36 to 27 g L-1. Plasma concentrations of unbound cefazolin exceeded the assumed target thresholds of 2 μg mL-1 in all samples and of 8 μg mL-1 in all but one of 199 samples. The increased plasma unbound fraction of cefazolin would be attributable to dilutional reduction of serum albumin at the beginning of CPB and to saturable plasma protein binding of cefazolin. These data reveal CPB may alter the plasma protein binding and possibly distribution of cefazolin. Further studies are warranted to reappraise the protocol of antimicrobial prophylaxis with cefazolin in patients undergoing surgery with CPB.
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Affiliation(s)
- Mizuho Asada
- Department of PharmacyMedical HospitalTokyo Medical and Dental University (TMDU)TokyoJapan
| | - Masashi Nagata
- Department of PharmacyMedical HospitalTokyo Medical and Dental University (TMDU)TokyoJapan
- Department of Pharmacokinetics and PharmacodynamicsGraduate School of Medical and Dental SciencesTokyo Medical and Dental University (TMDU)TokyoJapan
| | - Tomohiro Mizuno
- Department of Cardiovascular SurgeryGraduate School of Medical and Dental ScienceTokyo Medical and Dental University (TMDU)TokyoJapan
| | - Tokujiro Uchida
- Department of AnesthesiologyGraduate School of Medical and Dental SciencesTokyo Medical and Dental University (TMDU)TokyoJapan
| | - Naoki Kurashima
- Medical Engineering CenterMedical Hospital of Tokyo Medical and Dental University (TMDU)TokyoJapan
| | - Hiromitsu Takahashi
- Department of PharmacyMedical HospitalTokyo Medical and Dental University (TMDU)TokyoJapan
| | - Koshi Makita
- Department of AnesthesiologyGraduate School of Medical and Dental SciencesTokyo Medical and Dental University (TMDU)TokyoJapan
| | - Hirokuni Arai
- Department of Cardiovascular SurgeryGraduate School of Medical and Dental ScienceTokyo Medical and Dental University (TMDU)TokyoJapan
| | - Hirotoshi Echizen
- Department of PharmacotherapyMeiji Pharmaceutical UniversityTokyoJapan
| | - Masato Yasuhara
- Department of Pharmacokinetics and PharmacodynamicsGraduate School of Medical and Dental SciencesTokyo Medical and Dental University (TMDU)TokyoJapan
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10
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Giorgetti A, Marras G, Genovesi D, Filidei E, Bottoni A, Mangione M, Emdin M, Marzullo P. Effect of prolonged fasting and low molecular weight heparin or warfarin therapies on 2-deoxy-2-[18F]-fluoro-D-glucose PET cardiac uptake. J Nucl Cardiol 2018; 25:1364-1371. [PMID: 28160263 DOI: 10.1007/s12350-017-0800-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/17/2017] [Indexed: 10/20/2022]
Abstract
BACKGROUND Whether anticoagulants other than unfractionated heparin are able to suppress cardiac PET uptake of 2-deoxy-2-[18F]-fluoro-D-glucose (18F-FDG) is unknown. METHODS One-hundred-seventy-four patients without history and clinical evidence of cardiac dysfunction and/or coronary heart disease underwent a 18F-FDG PET/CT study. All patients were studied with a >12-hours fasting and divided into 2 groups: group-1 without anticoagulant therapy (n:75); group-2 patients on low molecular weight heparin (n:60) or warfarin therapy (n:39). Cardiac 18F-FDG uptake was estimated qualitatively using a 4-point scale and semiquantitatively as total LV glycolysis (LVG) and metabolic volume (MV), drawing isocontour volume of interest (VOI) including the whole LV. RESULTS Qualitatively, LV 18-FDG uptake was scored 0 or 1, indicating a good suppression, in 10/75 (13%) patients of group-1 and 77/99 (78%) of group-2 (p < .001). Semiquantitatively, patients of group-1 showed higher values of 18-FDG uptake than patients of group-2, assessed as LVG (802,649 ± 468,442 vs 198,989 ± 261,439, p < .0001) or MV (219 ± 77 vs 57 ± 48 cm3, p < .0001). Subanalysis for anticoagulant drugs showed similar results. CONCLUSIONS Prolonged fasting combined to anticoagulants other than unfractionated heparin is able to minimize glucose cardiac metabolism. Our data confirm previous observation on the possibility to influence the metabolic pattern of the heart before the PET scan and broadens the spectrum of pharmacological options.
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Affiliation(s)
- Assuero Giorgetti
- Fondazione CNR/Regione Toscana "G. Monasterio", Via Moruzzi n.1, 56124, Pisa, Italy.
| | - Gavino Marras
- Fondazione CNR/Regione Toscana "G. Monasterio", Via Moruzzi n.1, 56124, Pisa, Italy
| | - Dario Genovesi
- Fondazione CNR/Regione Toscana "G. Monasterio", Via Moruzzi n.1, 56124, Pisa, Italy
| | - Elena Filidei
- Fondazione CNR/Regione Toscana "G. Monasterio", Via Moruzzi n.1, 56124, Pisa, Italy
| | - Antonio Bottoni
- Fondazione CNR/Regione Toscana "G. Monasterio", Via Moruzzi n.1, 56124, Pisa, Italy
| | - Maurizio Mangione
- Fondazione CNR/Regione Toscana "G. Monasterio", Via Moruzzi n.1, 56124, Pisa, Italy
| | - Michele Emdin
- Fondazione CNR/Regione Toscana "G. Monasterio", Via Moruzzi n.1, 56124, Pisa, Italy
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Paolo Marzullo
- Fondazione CNR/Regione Toscana "G. Monasterio", Via Moruzzi n.1, 56124, Pisa, Italy
- Institute of Clinical Physiology, CNR, Pisa, Italy
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11
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Zhang HX, Zhou D, Xia QH. Study on the molecular recognition action of lamivudine by human serum albumin. J Mol Recognit 2018; 31:e2705. [DOI: 10.1002/jmr.2705] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/21/2017] [Accepted: 01/26/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Hua-xin Zhang
- Hubei Key Laboratory of Drug Synthesis and Optimization; Jingchu University of Technology; Jingmen Hubei People's Republic of China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials; Hubei University; Wuhan Hubei People's Republic of China
| | - Dan Zhou
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials; Hubei University; Wuhan Hubei People's Republic of China
| | - Qing-hua Xia
- Hubei Key Laboratory of Drug Synthesis and Optimization; Jingchu University of Technology; Jingmen Hubei People's Republic of China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials; Hubei University; Wuhan Hubei People's Republic of China
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12
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Díaz N, Suárez D. Role of the Protonation State on the Structure and Dynamics of Albumin. J Chem Theory Comput 2016; 12:1972-88. [DOI: 10.1021/acs.jctc.5b01001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Natalia Díaz
- C/Julián
Clavería
8. Dpto. de Química Física y Analítica, Universidad de Oviedo, Oviedo, 33006 Asturias, Spain
| | - Dimas Suárez
- C/Julián
Clavería
8. Dpto. de Química Física y Analítica, Universidad de Oviedo, Oviedo, 33006 Asturias, Spain
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di Masi A, Trezza V, Leboffe L, Ascenzi P. Human plasma lipocalins and serum albumin: Plasma alternative carriers? J Control Release 2016; 228:191-205. [PMID: 26951925 DOI: 10.1016/j.jconrel.2016.02.049] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Revised: 02/23/2016] [Accepted: 02/24/2016] [Indexed: 01/14/2023]
Abstract
Lipocalins are an evolutionarily conserved family of proteins that bind and transport a variety of exogenous and endogenous ligands. Lipocalins share a conserved eight anti-parallel β-sheet structure. Among the different lipocalins identified in humans, α-1-acid glycoprotein (AGP), apolipoprotein D (apoD), apolipoprotein M (apoM), α1-microglobulin (α1-m) and retinol-binding protein (RBP) are plasma proteins. In particular, AGP is the most important transporter for basic and neutral drugs, apoD, apoM, and RBP mainly bind endogenous molecules such as progesterone, pregnenolone, bilirubin, sphingosine-1-phosphate, and retinol, while α1-m binds the heme. Human serum albumin (HSA) is a monomeric all-α protein that binds endogenous and exogenous molecules like fatty acids, heme, and acidic drugs. Changes in the plasmatic levels of lipocalins and HSA are responsible for the onset of pathological conditions associated with an altered drug transport and delivery. This, however, does not necessary result in potential adverse effects in patients because many drugs can bind both HSA and lipocalins, and therefore mutual compensatory binding mechanisms can be hypothesized. Here, molecular and clinical aspects of ligand transport by plasma lipocalins and HSA are reviewed, with special attention to their role as alterative carriers in health and disease.
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Affiliation(s)
- Alessandra di Masi
- Dipartimento di Scienze, Università Roma Tre, Viale Marconi 446, I-00146 Roma, Italy; Istituto Nazionale di Biostrutture e Biosistemi, Via delle Medaglie d'Oro 305, I-00136 Roma, Italy.
| | - Viviana Trezza
- Dipartimento di Scienze, Università Roma Tre, Viale Marconi 446, I-00146 Roma, Italy
| | - Loris Leboffe
- Dipartimento di Scienze, Università Roma Tre, Viale Marconi 446, I-00146 Roma, Italy; Istituto Nazionale di Biostrutture e Biosistemi, Via delle Medaglie d'Oro 305, I-00136 Roma, Italy
| | - Paolo Ascenzi
- Istituto Nazionale di Biostrutture e Biosistemi, Via delle Medaglie d'Oro 305, I-00136 Roma, Italy; Laboratorio Interdipartimentale di Microscopia Elettronica, Università Roma Tre, Via della Vasca Navale 79, I-00146 Roma, Italy
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14
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Mahapatra TS, Chaudhury S, Dasgupta S, Bertolasi V, Ray D. Dinuclear nickel complexes of divergent Ni⋯Ni separation showing ancillary ligand addition and bio-macromolecular interaction. NEW J CHEM 2016. [DOI: 10.1039/c5nj02410b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Reactions of ligand HL with nickel(ii) salts produce a family of five [Ni2] complexes of varying co-ligand environments and intermetallic separations and show prominent interactions with HSA and CT-DNA.
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Affiliation(s)
| | | | - Swagata Dasgupta
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721 302
- India
| | - Valerio Bertolasi
- Dipartimento di Scienze Chimiche e Farmaceutiche and Centro di Strutturistica Diffrattometrica
- Università di Ferrara
- I44121 Ferrara
- Italy
| | - Debashis Ray
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721 302
- India
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15
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Interaction of bovine serum albumin with N-acyl amino acid based anionic surfactants: Effect of head-group hydrophobicity. J Colloid Interface Sci 2015; 458:284-92. [DOI: 10.1016/j.jcis.2015.07.064] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 07/26/2015] [Accepted: 07/28/2015] [Indexed: 11/21/2022]
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16
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Sand KMK, Bern M, Nilsen J, Noordzij HT, Sandlie I, Andersen JT. Unraveling the Interaction between FcRn and Albumin: Opportunities for Design of Albumin-Based Therapeutics. Front Immunol 2015; 5:682. [PMID: 25674083 PMCID: PMC4306297 DOI: 10.3389/fimmu.2014.00682] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 12/17/2014] [Indexed: 01/08/2023] Open
Abstract
The neonatal Fc receptor (FcRn) was first found to be responsible for transporting antibodies of the immunoglobulin G (IgG) class from the mother to the fetus or neonate as well as for protecting IgG from intracellular catabolism. However, it has now become apparent that the same receptor also binds albumin and plays a fundamental role in homeostatic regulation of both IgG and albumin, as FcRn is expressed in many different cell types and organs at diverse body sites. Thus, to gain a complete understanding of the biological function of each ligand, and also their distribution in the body, an in-depth characterization of how FcRn binds and regulates the transport of both ligands is necessary. Importantly, such knowledge is also relevant when developing new drugs, as IgG and albumin are increasingly utilized in therapy. This review discusses our current structural and biological understanding of the relationship between FcRn and its ligands, with a particular focus on albumin and design of albumin-based therapeutics.
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Affiliation(s)
- Kine Marita Knudsen Sand
- Department of Biosciences, Centre for Immune Regulation (CIR), University of Oslo , Oslo , Norway ; Department of Immunology, Centre for Immune Regulation (CIR), Oslo University Hospital Rikshospitalet , Oslo , Norway
| | - Malin Bern
- Department of Biosciences, Centre for Immune Regulation (CIR), University of Oslo , Oslo , Norway ; Department of Immunology, Centre for Immune Regulation (CIR), Oslo University Hospital Rikshospitalet , Oslo , Norway
| | - Jeannette Nilsen
- Department of Immunology, Centre for Immune Regulation (CIR), Oslo University Hospital Rikshospitalet , Oslo , Norway ; Institute of Clinical Medicine, University of Oslo , Oslo , Norway
| | - Hanna Theodora Noordzij
- Department of Biosciences, Centre for Immune Regulation (CIR), University of Oslo , Oslo , Norway ; Department of Immunology, Centre for Immune Regulation (CIR), Oslo University Hospital Rikshospitalet , Oslo , Norway
| | - Inger Sandlie
- Department of Biosciences, Centre for Immune Regulation (CIR), University of Oslo , Oslo , Norway ; Department of Immunology, Centre for Immune Regulation (CIR), Oslo University Hospital Rikshospitalet , Oslo , Norway
| | - Jan Terje Andersen
- Department of Immunology, Centre for Immune Regulation (CIR), Oslo University Hospital Rikshospitalet , Oslo , Norway
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17
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Taguchi K, Chuang VTG, Yamasaki K, Urata Y, Tanaka R, Anraku M, Seo H, Kawai K, Maruyama T, Komatsu T, Otagiri M. Cross-linked human serum albumin dimer has the potential for use as a plasma-retaining agent for the fatty acid-conjugated antidiabetic drugs. J Pharm Pharmacol 2014; 67:255-63. [DOI: 10.1111/jphp.12338] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 09/28/2014] [Indexed: 01/23/2023]
Abstract
Abstract
Objectives
The half-life of fatty acid-conjugated antidiabetic drugs are prolonged through binding to albumin, but this may not occur in diabetic patients with nephropathy complicated with hypoalbuminemia. We previously showed that human serum albumin (HSA) dimerized at the protein's Cys34 by 1,6-bis(maleimido)hexane has longer half-life than the monomer under high permeability conditions. The aim of this study was to investigate the superior ability of this HSA dimer as a plasma-retaining agent for fatty acid conjugated antidiabetic drugs.
Methods
The diabetic nephropathy rat model was prepared by administering a single injection of streptozotocin (STZ) intravenously, and the pharmacokinetic properties of HSA monomer and dimer were evaluated. Site-specific fluorescent probe displacement experiments were performed using warfarin and dansylsarcosine as site I and site II specific fluorescent probes, respectively.
Key findings
The half-life of the HSA dimer in STZ-induced diabetic nephropathy model rats was 1.5 times longer than the HSA monomer. The fluorescent probe displacement experiment results for HSA monomer and dimer were similar, where fatty acid-conjugated antidiabetic drugs displaced dansylsarcosine but not warfarin in a concentration-dependent manner.
Conclusions
The HSA dimer shows potential for use as a plasma-retaining agent for antidiabetic drugs due to its favourable pharmacokinetic properties.
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Affiliation(s)
- Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan
| | - Victor Tuan Giam Chuang
- School of Pharmacy, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan
- DDS Research Institute, Sojo University, Kumamoto, Japan
| | - Yukino Urata
- Department of Biopharmaceutics, Kumamoto University, Kumamoto, Japan
| | - Ryota Tanaka
- Department of Biopharmaceutics, Kumamoto University, Kumamoto, Japan
| | - Makoto Anraku
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan
| | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan
- DDS Research Institute, Sojo University, Kumamoto, Japan
| | - Keiichi Kawai
- School of Health Sciences, Faculty of Medicine, Kanazawa University, Kanazawa, Japan
| | - Toru Maruyama
- Department of Biopharmaceutics, Kumamoto University, Kumamoto, Japan
- Center for Clinical Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Teruyuki Komatsu
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, Bunkyo-ku, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan
- Department of Biopharmaceutics, Kumamoto University, Kumamoto, Japan
- DDS Research Institute, Sojo University, Kumamoto, Japan
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18
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Pongprayoon P, Gleeson MP. Probing the binding site characteristics of HSA: A combined molecular dynamics and cheminformatics investigation. J Mol Graph Model 2014; 54:164-73. [DOI: 10.1016/j.jmgm.2014.10.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 10/08/2014] [Accepted: 10/11/2014] [Indexed: 10/24/2022]
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19
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Phuangsawai O, Hannongbua S, Gleeson MP. Elucidating the Origin of the Esterase Activity of Human Serum Albumin Using QM/MM Calculations. J Phys Chem B 2014; 118:11886-94. [DOI: 10.1021/jp506629y] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Oraphan Phuangsawai
- Department
of Chemistry,
Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
| | - Supa Hannongbua
- Department
of Chemistry,
Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
| | - M. Paul Gleeson
- Department
of Chemistry,
Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
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20
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Kitamura K, Takegami S, Tanaka R, Omran AA, Kitade T. Effect of long-chain Fatty acids on the binding of triflupromazine to human serum albumin: a spectrophotometric study. Sci Pharm 2014; 82:233-45. [PMID: 24959397 PMCID: PMC4065120 DOI: 10.3797/scipharm.1310-23] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Accepted: 12/28/2013] [Indexed: 11/28/2022] Open
Abstract
Human serum albumin (HSA) in the blood binds long-chain fatty acids (LCFAs), and the number of bound LCFAs varies from 1 to 7 depending on the physical condition of the body. In this study, the influence of LCFA-HSA binding on drug-HSA binding was studied using triflupromazine (TFZ), a psychotropic phenothiazine drug, in a buffer (0.1 M NaCl, pH 7.40, 37°C) by a second-derivative spectrophotometric method which can suppress the residual background signal effects of HSA observed in the absorption spectra. The examined LCFAs were caprylic acid (CPA), lauric acid (LRA), oleic acid (OLA), and linoleic acid (LNA), respectively. Using the derivative intensity change of TFZ induced by the addition of HSA containing LCFA, the binding mode of TFZ was predicted to be a partition-like nonspecific binding. The binding constant (K M−1) showed an increase according to the LCFA content in HSA for LRA, OLA, and LNA up to an LCFA/HSA molar ratio of 3–4. However, at higher ratios the K value decreased, i.e. for OLA and LNA, at an LCFA/HSA ratio of 6–7, the K value decreased to 40% of the value for HSA alone. In contrast, CPA, having the shortest chain length (8 carbons) among the studied LCFAs, induced a 20% decrease in the K value regardless of its content in HSA. Since the pharmacological activity of a drug is closely related to the unbound drug concentration in the blood, the results of the present study are pharmaco-kinetically, pharmacologically, and clinically very important.
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Affiliation(s)
- Keisuke Kitamura
- Kyoto Pharmaceutical University, 5 Nakauchicho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Shigehiko Takegami
- Kyoto Pharmaceutical University, 5 Nakauchicho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Rumi Tanaka
- Kyoto Pharmaceutical University, 5 Nakauchicho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Ahmed Ahmed Omran
- Chemistry Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt. ; Chemistry Department, Faculty of Science, King Khalid University, Abha 9004, Saudi Arabia
| | - Tatsuya Kitade
- Kyoto Pharmaceutical University, 5 Nakauchicho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
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21
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Addad F, Amami M, Ibn Elhadj Z, Chakroun T, Marrakchi S, Kachboura S. Does Ramadan fasting affect the intensity of acenocoumarol-induced anticoagulant effect? Br J Haematol 2014; 166:792-4. [PMID: 24749553 DOI: 10.1111/bjh.12897] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Faouzi Addad
- Department of Cardiology, Abderrahmen Mami University Hospital, Ariana, Tunisia.
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22
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Fujiwara SI, Amisaki T. Fatty acid binding to serum albumin: Molecular simulation approaches. Biochim Biophys Acta Gen Subj 2013; 1830:5427-34. [DOI: 10.1016/j.bbagen.2013.03.032] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/26/2013] [Accepted: 03/28/2013] [Indexed: 02/02/2023]
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23
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Domonkos C, Fitos I, Visy J, Zsila F. Fatty Acid Modulated Human Serum Albumin Binding of the β-Carboline Alkaloids Norharmane and Harmane. Mol Pharm 2013; 10:4706-16. [DOI: 10.1021/mp400531n] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Celesztina Domonkos
- Department of Biochemical
Pharmacology, Institute of Molecular Pharmacology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, POB 17, H-1025, Budapest, Hungary
| | - Ilona Fitos
- Department of Biochemical
Pharmacology, Institute of Molecular Pharmacology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, POB 17, H-1025, Budapest, Hungary
| | - Júlia Visy
- Department of Biochemical
Pharmacology, Institute of Molecular Pharmacology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, POB 17, H-1025, Budapest, Hungary
| | - Ferenc Zsila
- Department of Biochemical
Pharmacology, Institute of Molecular Pharmacology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, POB 17, H-1025, Budapest, Hungary
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24
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Myung K, Manthey JA, Narciso JA. Protein sequestration of lipophilic furanocoumarins in grapefruit juice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:667-673. [PMID: 23256844 DOI: 10.1021/jf304271s] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The sequestration of grapefruit furanocoumarins by foods was investigated by characterizing the binding between these compounds and foods with contrasting protein, fat, and carbohydrate compositions. Individual grapefruit furanocoumarins exhibited contrasting affinities to foods, where the lipophilic bergamottin and several structurally related dimers bound to foods more tightly than the more polar 6',7'-dihydroxybergamottin. From the investigation of different classes of macromolecules in foods, water-soluble proteins were found to be the major constituents responsible for furanocoumarin sequestration. Studies using bovine serum albumin as a model protein demonstrated the dissociation of grapefruit furanocoumarins from the insoluble juice cloud particles and the subsequent formation of water-soluble bovine serum albumin-furanocoumarin complexes. Fluorescence binding assays further demonstrated the binding of bergamottin and 6',7'-dihydroxybergamottin to bovine serum albumin. These results demonstrate that proteins can be sequestration agents of these important dietary furanocoumarins.
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Affiliation(s)
- Kyung Myung
- United States Horticultural Research Laboratory, Agricultural Research Service, United States Department of Agriculture, Fort Pierce, Florida 34945, United States.
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25
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Abou-Zied OK, Al-Lawatia N, Elstner M, Steinbrecher TB. Binding of Hydroxyquinoline Probes to Human Serum Albumin: Combining Molecular Modeling and Förster’s Resonance Energy Transfer Spectroscopy to Understand Flexible Ligand Binding. J Phys Chem B 2013; 117:1062-74. [DOI: 10.1021/jp311238n] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Osama K. Abou-Zied
- Department of Chemistry, Faculty
of Science, Sultan Qaboos University, P.O.
Box 36, Postal Code 123, Muscat, Sultanate of Oman
| | - Najla Al-Lawatia
- Department of Chemistry, Faculty
of Science, Sultan Qaboos University, P.O.
Box 36, Postal Code 123, Muscat, Sultanate of Oman
| | - Marcus Elstner
- Department for Theoretical Chemical
Biology, Institute for Physical Chemistry, Kaiserstr. 12, Karlsruhe Institute of Technology, 76131 Karlsruhe,
Germany
| | - Thomas B. Steinbrecher
- Department for Theoretical Chemical
Biology, Institute for Physical Chemistry, Kaiserstr. 12, Karlsruhe Institute of Technology, 76131 Karlsruhe,
Germany
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26
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Silveira VC, Abbott MP, Cavicchioli M, Gonçalves MB, Petrilli HM, de Rezende L, Amaral AT, Fonseca DEP, Caramori GF, da Costa Ferreira AM. Peculiar reactivity of a di-imine copper(ii) complex regarding its binding to albumin protein. Dalton Trans 2013; 42:6386-96. [DOI: 10.1039/c3dt00108c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Poór M, Kunsági-Máté S, Czibulya Z, Li Y, Peles-Lemli B, Petrik J, Vladimir-Knežević S, Kőszegi T. Fluorescence spectroscopic investigation of competitive interactions between ochratoxin A and 13 drug molecules for binding to human serum albumin. LUMINESCENCE 2012; 28:726-33. [PMID: 22987806 DOI: 10.1002/bio.2423] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 07/13/2012] [Accepted: 07/19/2012] [Indexed: 11/11/2022]
Abstract
Ochratoxin A (OTA) is a highly toxic mycotoxin found worldwide in cereals, foods, animal feeds and different drinks. Based on previous studies, OTA is one of the major causes of the chronic tubulointerstitial nephropathy known as Balkan endemic nephropathy (BEN) and exerts several other adverse effects shown by cell and/or animal models. It is a well-known fact that OTA binds to various albumins with very high affinity. Recently, a few studies suggested that reducing the bound fraction of OTA might reduce its toxicity. Hypothetically, certain drugs can be effective competitors displacing OTA from its albumin complex. Therefore, we examined 13 different drug molecules to determine their competing abilities to displace OTA from human serum albumin (HSA). Competitors and ineffective chemicals were identified with a steady-state fluorescence polarization-based method. After characterization the competitive abilities of individual drugs, drug pairs were formed and their displacing activity were tested in OTA-HSA system. Indometacin, phenylbutazone, warfarin and furosemide showed the highest competing capacity but ibuprofen, glipizide and simvastatin represented detectable interaction too. Investigations of drug pairs raised the possibility of the presence of diverse binding sites of competing drugs. Apart from the chemical information obtained in our model, this explorative research might initiate future designs for epidemiologic studies to gain further in vivo evidence of long-term (potentially protective) effects of competing drugs administered to human patients.
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Affiliation(s)
- Miklós Poór
- Institute of Laboratory Medicine, University of Pécs, H-7624, Pécs, Hungary
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28
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Beckford G, Owens E, Henary M, Patonay G. The solvatochromic effects of side chain substitution on the binding interaction of novel tricarbocyanine dyes with human serum albumin. Talanta 2012; 92:45-52. [DOI: 10.1016/j.talanta.2012.01.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Accepted: 01/13/2012] [Indexed: 11/26/2022]
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