1
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Rutherford S, Hutchison CDM, Greetham GM, Parker AW, Nordon A, Baker MJ, Hunt NT. Optical Screening and Classification of Drug Binding to Proteins in Human Blood Serum. Anal Chem 2023; 95:17037-17045. [PMID: 37939225 PMCID: PMC10666086 DOI: 10.1021/acs.analchem.3c03713] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/17/2023] [Accepted: 10/23/2023] [Indexed: 11/10/2023]
Abstract
Protein-drug interactions in the human bloodstream are important factors in applications ranging from drug design, where protein binding influences efficacy and dose delivery, to biomedical diagnostics, where rapid, quantitative measurements could guide optimized treatment regimes. Current measurement approaches use multistep assays, which probe the protein-bound drug fraction indirectly and do not provide fundamental structural or dynamic information about the in vivo protein-drug interaction. We demonstrate that ultrafast 2D-IR spectroscopy can overcome these issues by providing a direct, label-free optical measurement of protein-drug binding in blood serum samples. Four commonly prescribed drugs, known to bind to human serum albumin (HSA), were added to pooled human serum at physiologically relevant concentrations. In each case, spectral changes to the amide I band of the serum sample were observed, consistent with binding to HSA, but were distinct for each of the four drugs. A machine-learning-based classification of the serum samples achieved a total cross-validation prediction accuracy of 92% when differentiating serum-only samples from those with a drug present. Identification on a per-drug basis achieved correct drug identification in 75% of cases. These unique spectroscopic signatures of the drug-protein interaction thus enable the detection and differentiation of drug containing samples and give structural insight into the binding process as well as quantitative information on protein-drug binding. Using currently available instrumentation, the 2D-IR data acquisition required just 1 min and 10 μL of serum per sample, and so these results pave the way to fast, specific, and quantitative measurements of protein-drug binding in vivo with potentially invaluable applications for the development of novel therapies and personalized medicine.
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Affiliation(s)
- Samantha
H. Rutherford
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, U.K.
| | - Christopher D. M. Hutchison
- STFC
Central Laser Facility, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, U.K.
| | - Gregory M. Greetham
- STFC
Central Laser Facility, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, U.K.
| | - Anthony W. Parker
- STFC
Central Laser Facility, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, U.K.
| | - Alison Nordon
- WestCHEM,
Department of Pure and Applied Chemistry and CPACT, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K.
| | - Matthew J. Baker
- School
of Medicine and Dentistry, University of
Central Lancashire, Fylde Rd, Preston PR1
2HE, U.K.
| | - Neil T. Hunt
- Department
of Chemistry and York Biomedical Research Institute, University of York, Heslington, York YO10 5DD, U.K.
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2
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Haghighi M, Moradi S, Nowroozi A, Tahmasbi M, Naseri MJ, Karami K, Shahlaei M. Determining the stoichiometry and binding constant of Lamotrigine with human serum albumin using voltammetry analysis and molecular modeling. J Biomol Struct Dyn 2023; 41:10117-10124. [PMID: 36476279 DOI: 10.1080/07391102.2022.2153170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/24/2022] [Indexed: 12/12/2022]
Abstract
In this study, the interaction of an anticonvulsant drug that used in the treatment of epilepsy, Lamotrigine (LTG) with the most important transport protein of the blood, human serum albumin (HSA) has been studied by using the electrochemical methods and molecular modeling techniques. For this purpose, a simple carbon paste electrode (CPE) was applied for electrocatalytic oxidation and investigation of LTG interaction with HSA. The stoichiometry of the complex between LTG and HSA and the binding constant (Kb) of the reaction were calculated from the calibration curves. The results show that binding of LTG to HSA formed two complexes with different stoichiometries with Kb1 (2.46 × 103) and Kb2 (1.75 × 107), respectively. In agreement with the experimental data, molecular modeling approach also confirmed that LTG can bind to the subdomain IIA and IB of HSA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Maryam Haghighi
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sajad Moradi
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Amin Nowroozi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Meisam Tahmasbi
- Electrical Engineering Department, South Tehran Branch, Islamic Azad University, Tehran
| | - Mohamad Javad Naseri
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kasra Karami
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohsen Shahlaei
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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3
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Yanaka S, Yogo R, Yagi H, Onitsuka M, Wakaizumi N, Yamaguchi Y, Uchiyama S, Kato K. Negative interference with antibody-dependent cellular cytotoxicity mediated by rituximab from its interactions with human serum proteins. Front Immunol 2023; 14:1090898. [PMID: 36761774 PMCID: PMC9905677 DOI: 10.3389/fimmu.2023.1090898] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/03/2023] [Indexed: 01/26/2023] Open
Abstract
Although interactions of small molecular drugs with serum proteins have been widely studied from pharmacokinetic and pharmacodynamic perspectives, there have been few reports on the effects of serum components on therapeutic antibody functions. This study reports the effect of abundant serum proteins on antibody-dependent cellular cytotoxicity (ADCC) mediated by rituximab and Fcγ receptor III (FcγRIII). Human serum albumin (HSA) and the Fab fragment from the pooled serum polyclonal IgG were found to compromise ADCC as non-competitive inhibitors. Our nuclear magnetic resonance data provided direct evidence for the interactions of HSA with both the Fab and Fc regions of rituximab and also with the extracellular region of FcγRIII (sFcγRIII). The degree of involvement in the interaction decreased in the order of rituximab-Fab > rituximab-Fc > sFcγRIII, suggesting preferential binding of HSA to net positively charged proteins. Although much less pronounced than the effect of HSA, polyclonal IgG-Fab specifically interacted with rituximab-Fc. The NMR data also showed that the serum protein interactions cover the Fc surface extensively, suggesting that they can act as pan-inhibitors against various Fc receptor-mediated functions and pharmacokinetics. Our findings highlight the importance of considering serum-protein interactions in the design and application of antibody-based drugs with increased efficacy and safety.
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Affiliation(s)
- Saeko Yanaka
- Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki, Japan.,Institute for Molecular Science (IMS), National Institutes of Natural Sciences, Okazaki, Japan.,Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan.,Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Rina Yogo
- Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki, Japan.,Institute for Molecular Science (IMS), National Institutes of Natural Sciences, Okazaki, Japan.,Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Hirokazu Yagi
- Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki, Japan.,Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Masayoshi Onitsuka
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima, Japan
| | | | - Yuki Yamaguchi
- Graduate School of Engineering, University of Osaka, Osaka, Japan
| | - Susumu Uchiyama
- Graduate School of Engineering, University of Osaka, Osaka, Japan
| | - Koichi Kato
- Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki, Japan.,Institute for Molecular Science (IMS), National Institutes of Natural Sciences, Okazaki, Japan.,Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
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4
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Kerep R, Šeba T, Gabričević M. Effect of the sialic acid residues upon the binding of beta blocker propranolol to human serum alpha-1 acid glycoprotein. MAKEDONSKO FARMACEVTSKI BILTEN 2022. [DOI: 10.33320/maced.pharm.bull.2022.68.03.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Affiliation(s)
- Robert Kerep
- University of Zagreb, Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, HR-10000 Zagreb, Croatia
| | - Tino Šeba
- University of Zagreb, Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, HR-10000 Zagreb, Croatia
| | - Mario Gabričević
- University of Zagreb, Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, HR-10000 Zagreb, Croatia
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5
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Amado PM, Woodley C, Cristiano MLS, O’Neill PM. Recent Advances of DprE1 Inhibitors against Mycobacterium tuberculosis: Computational Analysis of Physicochemical and ADMET Properties. ACS OMEGA 2022; 7:40659-40681. [PMID: 36406587 PMCID: PMC9670723 DOI: 10.1021/acsomega.2c05307] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/21/2022] [Indexed: 05/14/2023]
Abstract
Decaprenylphosphoryl-β-d-ribose 2'-epimerase (DprE1) is a critical flavoenzyme in Mycobacterium tuberculosis, catalyzing a vital step in the production of lipoarabinomannan and arabinogalactan, both of which are essential for cell wall biosynthesis. Due to its periplasmic localization, DprE1 is a susceptible target, and several compounds with diverse scaffolds have been discovered that inhibit this enzyme, covalently or noncovalently. We evaluated a total of ∼1519 DprE1 inhibitors disclosed in the literature from 2009 to April 2022 by performing an in-depth analysis of physicochemical descriptors and absorption, distribution, metabolism, excretion, and toxicity (ADMET), to gain new insights into these properties in DprE1 inhibitors. Several molecular properties that should facilitate the design and optimization of future DprE1 inhibitors are described, allowing for the development of improved analogues targeting M. tuberculosis.
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Affiliation(s)
- Patrícia
S. M. Amado
- Center
of Marine Sciences - CCMAR, University of
Algarve, P-8005-039 Faro, Portugal
- Department
of Chemistry and Pharmacy, FCT, University
of Algarve, P-8005-039 Faro, Portugal
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Christopher Woodley
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Maria L. S. Cristiano
- Center
of Marine Sciences - CCMAR, University of
Algarve, P-8005-039 Faro, Portugal
- Department
of Chemistry and Pharmacy, FCT, University
of Algarve, P-8005-039 Faro, Portugal
- Email
for M.L.S.C.:
| | - Paul M. O’Neill
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
- Email for P.M.O.:
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6
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Wu YJ, Li ZH, Li JY, Zhou Y, Wang RY, Chen XY, Qing LS, Luo P. Elucidation of the binding mechanism of astragaloside IV derivative with human serum albumin and its cardiotoxicity in zebrafish embryos. Front Pharmacol 2022; 13:987882. [PMID: 36210826 PMCID: PMC9537572 DOI: 10.3389/fphar.2022.987882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 09/01/2022] [Indexed: 11/13/2022] Open
Abstract
LS-102 is a new derivative of astragaloside IV (AGS IV) that has been shown to possess potentially significant cardioprotective effects. However, there are no reports concerning its interaction with human serum albumin (HSA) and toxicology in vertebrates. The present investigation was undertaken to characterize the interaction of AGS IV and LS-102 with HSA using equilibrium dialysis and UHPLC-MS/MS methods, along with computational methods. Notably, the effects of AGS IV and LS-102 were studied in vivo using the zebrafish embryo model. Markers related to embryonic cardiotoxicity and thrombosis were evaluated. We showed that the plasma protein binding rate of AGS IV (94.04%–97.42%) was significantly higher than that of LS-102 (66.90%–69.35%). Through site marker competitive experiments and molecular docking, we found that AGS IV and LS-102 were located at the interface of subdomains IIA and IIIA, but the site I might be the primary binding site. Molecular dynamics revealed that AGS IV showed a higher binding free energy mainly due to the stronger hydrophobic and hydrogen bonding interactions. Moreover, the secondary structure implied no obvious effect on the protein structure and conformation during the binding of LS-102. LS-102 significantly ameliorated the astramizole-induced heart rate slowing, increased SV-BA spacing, and prevented arachidonic acid-induced thrombosis in zebrafish. To our knowledge, we are the first to reveal that LS-102 binds to HSA with reversible and moderate affinity, indicating its easy diffusion from the circulatory system to the target tissue, thereby providing significant insights into its pharmacokinetic and pharmacodynamic properties when spread in the human body. Our results also provide a reference for the rational clinical application of LS-102 in the cardiovascular field.
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Affiliation(s)
- You-Jiao Wu
- State Key Laboratories for Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, SAR, China
| | - Zhan-Hua Li
- State Key Laboratories for Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, SAR, China
| | - Jiu-Yan Li
- State Key Laboratories for Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, SAR, China
| | - Yan Zhou
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Run-Yue Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Xiao-Yi Chen
- State Key Laboratories for Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, SAR, China
| | - Lin-Sen Qing
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- *Correspondence: Lin-Sen Qing, ; Pei Luo,
| | - Pei Luo
- State Key Laboratories for Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macao, SAR, China
- *Correspondence: Lin-Sen Qing, ; Pei Luo,
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7
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Hypoalbuminemia affects the spatio-temporal tissue distribution of ochratoxin A in liver and kidneys: consequences for organ toxicity. Arch Toxicol 2022; 96:2967-2981. [PMID: 35962801 PMCID: PMC9525345 DOI: 10.1007/s00204-022-03361-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/03/2022] [Indexed: 11/21/2022]
Abstract
Hypoalbuminemia (HA) is frequently observed in systemic inflammatory diseases and in liver disease. However, the influence of HA on the pharmacokinetics and toxicity of compounds with high plasma albumin binding remained insufficiently studied. The ‘lack-of-delivery-concept’ postulates that HA leads to less carrier mediated uptake of albumin bound substances into hepatocytes and to less glomerular filtration; in contrast, the ‘concept-of-higher-free-fraction’ argues that increased concentrations of non-albumin bound compounds facilitate hepatocellular uptake and enhance glomerular filtration. To address this question, we performed intravital imaging on livers and kidneys of anesthetized mice to quantify the spatio-temporal tissue distribution of the mycotoxin ochratoxin A (OTA) based on its auto-fluorescence in albumin knockout and wild-type mice. HA strongly enhanced the uptake of OTA from the sinusoidal blood into hepatocytes, followed by faster secretion into bile canaliculi. These toxicokinetic changes were associated with increased hepatotoxicity in heterozygous albumin knockout mice for which serum albumin was reduced to a similar extent as in patients with severe hypoalbuminemia. HA also led to a shorter half-life of OTA in renal capillaries, increased glomerular filtration, and to enhanced uptake of OTA into tubular epithelial cells. In conclusion, the results favor the ‘concept-of-higher-free-fraction’ in HA; accordingly, HA causes an increased tissue uptake of compounds with high albumin binding and increased organ toxicity. It should be studied if this concept can be generalized to all compounds with high plasma albumin binding that are substrates of hepatocyte and renal tubular epithelial cell carriers.
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8
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Jagusiak A, Chłopaś K, Zemanek G, Kościk I, Skorek P, Stopa B. Albumin Binds Doxorubicin via Self−Assembling Dyes as Specific Polymolecular Ligands. Int J Mol Sci 2022; 23:ijms23095033. [PMID: 35563426 PMCID: PMC9104453 DOI: 10.3390/ijms23095033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 11/16/2022] Open
Abstract
Congo red (CR) type self–assembled ribbon–like structures (SRLS) were previously shown to interact with some proteins, including albumin. SRLS also complex with some drugs with a flat, ring–shaped structure with aromatic characteristics, intercalating them into their ribbon structure. The combination of interaction with proteins and drug binding by SRLS enables the use of such systems for immunotargeting. It is especially interesting in the case of chemotherapeutic agents. The present experiments aimed to show that the model carrier system composed of supramolecular albumin and Congo red efficiently binds doxorubicin (Dox) and that the drug can be released at reduced pH. The presented results come from the studies on such complexes differing in the molar ratio of CR to Dox. The following methods were used for the analysis: electrophoresis, dialysis, gel filtration, spectral analysis, and analysis of the size of the hydrodynamic radius using the dynamic light scattering method (DLS). The applied methods confirmed the formation of the CR–Dox complex, with large dimensions and changed properties compared with free CR. The presented results show that albumin binds both CR and its complex with Dox. Various CR–Dox molar ratios, 5:1, 2:1, and 1:1, were analyzed. The confirmation of the possibility of releasing the drug from the carriers thus formed was also obtained. The presented research is important due to the search for optimal solutions for the use of SRLS in drug immunotargeting, with particular emphasis on chemotherapeutic agents.
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Affiliation(s)
- Anna Jagusiak
- Chair of Medical Biochemistry, Faculty of Medicine, Medical College, Jagiellonian University, 31-034 Krakow, Poland; (G.Z.); (I.K.); (B.S.)
- Correspondence:
| | - Katarzyna Chłopaś
- Pulmonology and Allergology Clinical Department, University Hospital in Krakow, 30-688 Krakow, Poland;
| | - Grzegorz Zemanek
- Chair of Medical Biochemistry, Faculty of Medicine, Medical College, Jagiellonian University, 31-034 Krakow, Poland; (G.Z.); (I.K.); (B.S.)
| | - Izabela Kościk
- Chair of Medical Biochemistry, Faculty of Medicine, Medical College, Jagiellonian University, 31-034 Krakow, Poland; (G.Z.); (I.K.); (B.S.)
- Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, 31-425 Krakow, Poland
| | - Paweł Skorek
- Department of Cardiac and Vascular Diseases, John Paul II Hospital, 31-202 Krakow, Poland;
| | - Barbara Stopa
- Chair of Medical Biochemistry, Faculty of Medicine, Medical College, Jagiellonian University, 31-034 Krakow, Poland; (G.Z.); (I.K.); (B.S.)
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9
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Rutherford SH, Greetham GM, Towrie M, Parker AW, Kharratian S, Krauss TF, Nordon A, Baker MJ, Hunt NT. Detection of paracetamol binding to albumin in blood serum using 2D-IR spectroscopy. Analyst 2022; 147:3464-3469. [DOI: 10.1039/d2an00978a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-Dimensional Infrared (2D-IR) spectroscopy is used to detect binding of paracetamol with proteins in blood serum. Quantitative peak patterns are observed indicating structural changes of the albumins' secondary structure when paracetamol bound.
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Affiliation(s)
- Samantha H. Rutherford
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
| | - Gregory M. Greetham
- STFC Central Laser Facility, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK
| | - Michael Towrie
- STFC Central Laser Facility, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK
| | - Anthony W. Parker
- STFC Central Laser Facility, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK
| | - Soheila Kharratian
- Department of Chemistry and York Biomedical Institute, University of York, Heslington, York, YO10 5DD, UK
- School of Physics, Engineering and Technology and York Biomedical Research Institute, University of York, Heslington, York, YO10 5DD, UK
| | - Thomas F. Krauss
- School of Physics, Engineering and Technology and York Biomedical Research Institute, University of York, Heslington, York, YO10 5DD, UK
| | - Alison Nordon
- WestCHEM, Department of Pure and Applied Chemistry and CPACT, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
| | - Matthew J. Baker
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
- Dxcover Ltd, Suite RC534, 204 George Street, Glasgow, G1 1XL, UK
| | - Neil T. Hunt
- Department of Chemistry and York Biomedical Institute, University of York, Heslington, York, YO10 5DD, UK
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10
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Ali A, Hasan P, Irfan M, Uddin A, Khan A, Saraswat J, Maguire R, Kavanagh K, Patel R, Joshi MC, Azam A, Mohsin M, Haque QMR, Abid M. Development of Oxadiazole-Sulfonamide-Based Compounds as Potential Antibacterial Agents. ACS OMEGA 2021; 6:27798-27813. [PMID: 34722980 PMCID: PMC8552329 DOI: 10.1021/acsomega.1c03379] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
In this work, substituted 1,2,4-oxadiazoles (OX1-OX27) were screened against five bacterial strains, identified to be OX7 and OX11 as growth inhibitors with minimum inhibitory concentration (MIC) values of 31.25 and 15.75 μg/mL, respectively. The growth inhibitory property of OX7 and OX11 was further validated by disk diffusion, growth curve, and time kill curve assays. Both disrupted biofilm formation with 92-100% reduction examined by the XTT assay were further visualized by scanning electron microscopy analysis. These compounds in combination with ciprofloxacin also exhibit synergy against Escherichia coli cells. With insignificant cytotoxic behavior on HEK293 cells, human red blood cells, and Galleria mellonella larvae, OX11 was tested against 28 multidrug resistant environmental isolates of bacteria and showed inhibition of Kluyvera georgiana and Citrobacter werkmanii strains with 32 and 16 μg/mL MIC values, respectively. The synergistic behavior of OX11 with ampicillin showed many fold reductions in MIC values against K. georgiana and Klebsiella pneumoniae multidrug resistant strains. Further, transmission electron microscopy analysis of OX11-treated E. coli cells showed a significantly damaged cell wall, which resulted in the loss of integrity and cytosolic oozing. OX11 showed significant changes in the secondary structure of human serum albumin (HSA) in the presence of OX11, enhancing HSA stability. Overall, the study provided a suitable core for further synthetic alterations and development as an antibacterial agent.
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Affiliation(s)
- Asghar Ali
- Microbiology
Research Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Phool Hasan
- Medicinal
Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mohammad Irfan
- Medicinal
Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Amad Uddin
- Medicinal
Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Ashba Khan
- Medicinal
Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Juhi Saraswat
- Biophysical
Chemistry Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Ronan Maguire
- Department
of Biology, Maynooth University, Maynooth, Co. Kildare ABC127 Ireland
| | - Kevin Kavanagh
- Department
of Biology, Maynooth University, Maynooth, Co. Kildare ABC127 Ireland
| | - Rajan Patel
- Biophysical
Chemistry Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mukesh C. Joshi
- Motilal
Nehru College, University of Delhi, Benito Juarez Marg, South Campus, New Delhi 110021, India
| | - Amir Azam
- Department
of Chemistry, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mohd. Mohsin
- Metabolic
Engineering Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Qazi Mohd. Rizwanul Haque
- Microbiology
Research Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mohammad Abid
- Medicinal
Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
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11
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Roy KS, Nazdrajić E, Shimelis OI, Ross MJ, Chen Y, Cramer H, Pawliszyn J. Optimizing a High-Throughput Solid-Phase Microextraction System to Determine the Plasma Protein Binding of Drugs in Human Plasma. Anal Chem 2021; 93:11061-11065. [PMID: 34353028 DOI: 10.1021/acs.analchem.1c01986] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Plasma protein binding refers to the binding of a drug to plasma proteins after entering the body. The measurement of plasma protein binding is essential during drug development and in clinical practice, as it provides a more detailed understanding of the available free concentration of a drug in the blood, which is in turn critical for pharmacokinetics and pharmacodynamics studies. In addition, the accurate determination of the free concentration of a drug in the blood is also highly important for therapeutic drug monitoring and in personalized medicine. The present study uses C18-coated solid-phase microextraction 96-pin devices to determine the free concentrations of a set of drugs in plasma, as well as the plasma protein binding of drugs with a wide range of physicochemical properties. It should be noted that the extracted amounts used to calculate the binding constants and plasma protein bindings should be measured at respective equilibrium for plasma and phosphate buffer. Therefore, special attention is placed on properly determining the equilibration times required to correctly estimate the free concentrations of drugs in the investigated systems. The plasma protein binding values obtained with the 96-pin devices are consistent with those reported in the literature. The 96-pin device used in this research can be easily coupled with a Concept96 or other automated robotic systems to create an automated plasma protein binding determination protocol that is both more time and labor efficient compared to conventional equilibrium dialysis and ultrafiltration methods.
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Affiliation(s)
- Kanchan Sinha Roy
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Emir Nazdrajić
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Olga I Shimelis
- MilliporeSigma, 595 N. Harrison Road, Bellefonte, Pennsylvania 16823, United States
| | - M James Ross
- MilliporeSigma, 595 N. Harrison Road, Bellefonte, Pennsylvania 16823, United States
| | - Yong Chen
- MilliporeSigma, 595 N. Harrison Road, Bellefonte, Pennsylvania 16823, United States
| | - Hugh Cramer
- MilliporeSigma, 595 N. Harrison Road, Bellefonte, Pennsylvania 16823, United States
| | - Janusz Pawliszyn
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
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12
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Salim MM, El Sharkasy ME, Belal F, Walash M. Multi-spectroscopic and molecular docking studies for binding interaction between fluvoxamine and human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119495. [PMID: 33524820 DOI: 10.1016/j.saa.2021.119495] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/04/2021] [Accepted: 01/12/2021] [Indexed: 06/12/2023]
Abstract
In the present study, different spectroscopic techniques have been used to study the binding interaction between the antidepressant drug fluvoxamine and human serum albumin under simulated physiological conditions (pH 7.4). The utilized spectroscopic techniques include fluorescence emission spectroscopy, synchronous fluorescence spectroscopy, UV-Vis absorption spectroscopy, Fourier Transform Infrared spectroscopy (FT-IR), and molecular modeling methods. The obtained results revealed that the formation of a complex between human serum albumin and fluvoxamine was responsible for quenching the native fluorescence of human serum albumin. The results indicated that the quenching mechanism between human serum albumin and fluvoxamine was static. Besides, the binding constant (K), number of binding sites (n), thermodynamic parameters (ΔH, ΔS, and ΔG), and binding forces were calculated at three different temperatures (298, 310, and 318 K). These data proposed that hydrophobic forces were the principal intermolecular forces stabilizing the complex. From the molecular docking results, it could be deduced that fluvoxamine was inserted into sub-domain II A (site I) of human serum albumin and led to a slight change in human serum albumin conformation.
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Affiliation(s)
- M M Salim
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta 34518, Egypt.
| | - Mona E El Sharkasy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - F Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - M Walash
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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13
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Synthesis of sorafenib analogues incorporating a 1,2,3-triazole ring and cytotoxicity towards hepatocellular carcinoma cell lines. Bioorg Chem 2021; 112:104831. [PMID: 33831675 DOI: 10.1016/j.bioorg.2021.104831] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 02/28/2021] [Accepted: 03/12/2021] [Indexed: 01/07/2023]
Abstract
A series of 1,2,3-triazole-containing Sorafenib analogues, in which the aryl urea moiety of Sorafenib (1) was replaced with a 1,2,3-triazole ring linking a substituted phenoxy fragment, were prepared successfully via Huisgen 1,3-dipolar cycloaddition and nucleophilic aromatic substitution. The studies of cytotoxicity towards human hepatocellular carcinoma (HCC) cell lines, HepG2 and Huh7, indicated that p-tert-butylphenoxy analogue 2m showed significant inhibitory activity against Huh7 with IC50 = 5.67 ± 0.57 µM. More importantly, 2m showed low cytotoxicity against human embryonal lung fibroblast cell line, MRC-5, with IC50 > 100 µM, suggesting its highly selective cytotoxic activity (SI > 17.6) towards Huh7 which is much superior to that of Sorafenib (SI = 6.73). The molecular docking studies revealed that the analogue 2m bound B-RAF near the binding position of Sorafenib, while it interacted VEGFR2 efficiently at the same binding position of Sorafenib. However, 2m exhibited moderate inhibitory activity toward B-RAF, implying that its anti-Huh7 effect might not strictly relate to inhibition of B-RAF. Wound healing and BrdU cell proliferation assays confirmed anti-cell migration and anti-cell proliferative activities towards Huh7. With its inhibitory efficiency and high safety profile, 2m has been identified as a promising candidate for the treatment of HCC.
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Severe hypoglycaemia under abemaciclib administration in a patient with breast cancer: A case report. Mol Clin Oncol 2021; 14:61. [PMID: 33604051 PMCID: PMC7849062 DOI: 10.3892/mco.2021.2223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 01/11/2021] [Indexed: 01/22/2023] Open
Abstract
The current study reports the case of an 80-year-old woman who experienced severe hypoglycaemia after abemaciclib administration, with a recovery time of ~46 h. Abemaciclib is a cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitor that is used to treat metastatic breast cancer. A side effect of abemaciclib administration is an increase in creatinine levels. The half-life (t1/2) of 150 mg abemaciclib in patients with breast cancer was reported to be 17.5 h (nearly lower limit), and the time to reach Cmax was ~5 h (Tmax, 4-6 h). Therefore, the total time to reach half the maximum blood concentration after abemaciclib administration is ~24 h (Tmax + t1/2=5+17.5=22.5 h). As abemaciclib is administered twice daily, a considerable amount (Cmax = 123 ng/ml) may persist in the blood following the initial dose. Upon repeated administration, the blood abemaciclib concentration in patients with metastatic liver tumours might increase, although their liver function remains normal. The patient described in the current study had a creatinine level of 1.05 mg/dl at the start of abemaciclib administration. At the time of emergency hospitalisation (on day 5 of abemaciclib administration), the creatinine level was 1.40 mg/dl; however, dehydration was not observed. The patient had been administered the same dose of glimepiride for >1 year and had not experienced hypoglycaemia previously. It can be speculated that the increase in blood creatinine level had some effect on glimepiride metabolism. It is thought that administered abemaciclib enhances metabolic delay in the blood in the same way as in patients with impaired liver function, and as a result, the creatinine level increases in patients with liver metastases. This causes a decrease in renal function, which in turn results in an increase in blood concentration of glimepiride, consequently leading to severe hypoglycaemia. Therefore, clinicians must be careful when using abemaciclib in patients with liver metastases, diabetes and poor renal function.
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15
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Mainardi Martins F, Chaves OA, Acunha TV, Roman D, Iglesias BA, Back DF. Helical water-soluble Ni II complexes with pyridoxal ligand derivatives: Structural evaluation and interaction with biomacromolecules. J Inorg Biochem 2020; 215:111307. [PMID: 33341589 DOI: 10.1016/j.jinorgbio.2020.111307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/29/2020] [Accepted: 11/07/2020] [Indexed: 11/26/2022]
Abstract
This article deals with the synthesis of Schiff-based bis-azomethine-based ligands derived from pyridoxal and aliphatic dihydrazides and the synthesis of nickel(II) complexes C1-C4. The synthesized complexes had their structures elucidated by monocrystal X-ray diffraction and were characterized by vibrational and absorption spectroscopy. The synthesized ligands have characteristics that allow the formation of self-assembly processes, thus, the flexibility or rigidity of the coordination of organic molecules added to the orbitals of the NiII cation leads to the formation of helical complexes with double helix and a dinucler nickel(II) complex. Moreover, compounds was their interactions with CT-DNA and HSA absorption and emission analysis and molecular docking calculations.
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Affiliation(s)
| | - Otávio Augusto Chaves
- Instituto SENAI de Inovação em Química Verde, Firjan-SENAI, Rio de Janeiro, RJ, Brazil
| | - Thiago V Acunha
- Laboratório de Bioinorgânica e Materiais Porfirínicos, Departamento de Química, CCNE, UFSM, Santa Maria, RS, Brazil
| | - Daiane Roman
- Laboratório de Síntese e Modificação Molecular, Faculdade de Ciências Exatas e Tecnologia, UFGD, Dourados, MS, Brazil
| | - Bernardo Almeida Iglesias
- Laboratório de Bioinorgânica e Materiais Porfirínicos, Departamento de Química, CCNE, UFSM, Santa Maria, RS, Brazil
| | - Davi Fernando Back
- Laboratório de Materiais Inorgânicos, Departamento de Química, CCNE, UFSM, Santa Maria, RS, Brazil.
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16
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López-Yerena A, Perez M, Vallverdú-Queralt A, Escribano-Ferrer E. Insights into the Binding of Dietary Phenolic Compounds to Human Serum Albumin and Food-Drug Interactions. Pharmaceutics 2020; 12:E1123. [PMID: 33233356 PMCID: PMC7700232 DOI: 10.3390/pharmaceutics12111123] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 02/06/2023] Open
Abstract
The distribution of drugs and dietary phenolic compounds in the systemic circulation de-pends on, among other factors, unspecific/specific reversible binding to plasma proteins such as human serum albumin (HSA). Phenolic substances, present in plant-derived feeds, foods, beverages, herbal medicines, and dietary supplements, are of great interest due to their biological activity. Recently, considerable research has been directed at the formation of phenol-HSA complexes, focusing above all on structure-affinity relationships. The nucleophilicity and planarity of molecules can be altered by the number and position of hydroxyl groups on the aromatic ring and by hydrogenation. Binding affinities towards HSA may also differ between phenolic compounds in their native form and conjugates derived from phase II reactions. On the other hand, food-drug interactions may increase the concentration of free drugs in the blood, affecting their transport and/or disposition and in some cases provoking adverse or toxic effects. This is caused mainly by a decrease in drug binding affinities for HSA in the presence of flavonoids. Accordingly, to avoid the side effects arising from changes in plasma protein binding, the intake of flavonoid-rich food and beverages should be taken into consideration when treating certain pathologies.
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Affiliation(s)
- Anallely López-Yerena
- Department of Nutrition, Food Science and Gastronomy XaRTA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; (A.L.-Y.); (M.P.); (A.V.-Q.)
| | - Maria Perez
- Department of Nutrition, Food Science and Gastronomy XaRTA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; (A.L.-Y.); (M.P.); (A.V.-Q.)
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain
| | - Anna Vallverdú-Queralt
- Department of Nutrition, Food Science and Gastronomy XaRTA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; (A.L.-Y.); (M.P.); (A.V.-Q.)
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Elvira Escribano-Ferrer
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain
- Pharmaceutical Nanotechnology Group I+D+I Associated Unit to CSIC, Biopharmaceutics and Pharmacokinetics Unit, Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Institute of Nanoscience and Nanotechnology (IN2UB), Pharmacy and Food Sciences School, University of Barcelona, 08028 Barcelona, Spain
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17
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Iqbal H, Yang T, Li T, Zhang M, Ke H, Ding D, Deng Y, Chen H. Serum protein-based nanoparticles for cancer diagnosis and treatment. J Control Release 2020; 329:997-1022. [PMID: 33091526 DOI: 10.1016/j.jconrel.2020.10.030] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/13/2020] [Accepted: 10/15/2020] [Indexed: 12/15/2022]
Abstract
Serum protein as naturally essential biomacromolecules has recently emerged as a versatile carrier for diagnostic and therapeutic drug delivery for cancer nanomedicine with superior biocompatibility, improved pharmacokinetics and enhanced targeting capacity. A variety of serum proteins have been utilized for drug delivery, mainly including albumin, ferritin/apoferritin, transferrin, low-density lipoprotein, high-density lipoprotein and hemoglobin. As evidenced by the success of paclitaxel-bound albumin nanoparticles (AbraxaneTM), serum protein-based nanoparticles have gained attractive attentions for precise biological design and potential clinical application. In this review, we summarize the general design strategies, targeting mechanisms and recent development of serum protein-based nanoparticles in the field of cancer nanomedicine. Moreover, we also concisely specify the current challenges to be addressed for a bright future of serum protein-based nanomedicines.
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Affiliation(s)
- Haroon Iqbal
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Tao Yang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Ting Li
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Miya Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Hengte Ke
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Dawei Ding
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Yibin Deng
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China.
| | - Huabing Chen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China; State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China.
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18
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Lehner AF, Dirikolu L, Johnson M, Buchweitz JP, Langlois DK. Liquid chromatography/tandem mass spectrometric analysis of penicillamine for its pharmacokinetic evaluation in dogs. Toxicol Mech Methods 2020; 30:687-702. [PMID: 32854553 DOI: 10.1080/15376516.2020.1814467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Copper storage disease occurs in multiple dog breeds and is one of the most common causes of chronic hepatitis in this species. The disease is caused by hereditary defects in copper metabolism in conjunction with high dietary copper levels. The progressive copper accumulation leads to hepatitis, cirrhosis, and eventually death if left untreated. Copper chelators are critical in modulating the effects of this disease. It is therefore of significant practicality to understand the pharmacokinetic (PK) parameters of chelating agents, particularly since they are oftentimes quite expensive. A liquid chromatography-tandem mass spectrometric (LC/MS/MS) method was developed to measure plasma levels of one of the most common chelators, d-penicillamine. The compound was discovered to exist in two forms, monomeric and dimeric, and various chemical derivatizations were tried to force the compound into one form or the other. Eventually, the simplest approach was individual determination of penicillamine and its dimer, with summation of the two quantities. This enabled determination of canine PK parameters for penicillamine based on comparison of oral and intravenous administration of the drug, including time to maximum drug level (Tmax), concentration at maximum (Cmax), clearance (Cls) and volume of distribution (Vdss). The drug was found to exist predominantly in the dimeric form in plasma, which is incapable of chelating copper owing to lack of free sulfhydryl groups and must therefore provide a storage form of the drug in equilibrium with its monomeric form in vivo. Mechanisms are discussed for the electrospray-induced fragmentation of penicillamine as well as of its dimer.
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Affiliation(s)
- Andreas F Lehner
- Veterinary Diagnostic Laboratory, Michigan State University, East Lansing, MI, USA
| | - Levent Dirikolu
- Comparative Biomedical Sciences, School of Veterinary Medicine, Louisianna State University, Baton Rouge, LA, USA
| | - Margaret Johnson
- Veterinary Diagnostic Laboratory, Michigan State University, East Lansing, MI, USA
| | - John P Buchweitz
- Veterinary Diagnostic Laboratory, Michigan State University, East Lansing, MI, USA.,Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, USA
| | - Daniel K Langlois
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
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19
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Hansen TWR, Wong RJ, Stevenson DK. Molecular Physiology and Pathophysiology of Bilirubin Handling by the Blood, Liver, Intestine, and Brain in the Newborn. Physiol Rev 2020; 100:1291-1346. [PMID: 32401177 DOI: 10.1152/physrev.00004.2019] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Bilirubin is the end product of heme catabolism formed during a process that involves oxidation-reduction reactions and conserves iron body stores. Unconjugated hyperbilirubinemia is common in newborn infants, but rare later in life. The basic physiology of bilirubin metabolism, such as production, transport, and excretion, has been well described. However, in the neonate, numerous variables related to nutrition, ethnicity, and genetic variants at several metabolic steps may be superimposed on the normal physiological hyperbilirubinemia that occurs in the first week of life and results in bilirubin levels that may be toxic to the brain. Bilirubin exists in several isomeric forms that differ in their polarities and is considered a physiologically important antioxidant. Here we review the chemistry of the bilirubin molecule and its metabolism in the body with a particular focus on the processes that impact the newborn infant, and how differences relative to older children and adults contribute to the risk of developing both acute and long-term neurological sequelae in the newborn infant. The final section deals with the interplay between the brain and bilirubin and its entry, clearance, and accumulation. We conclude with a discussion of the current state of knowledge regarding the mechanism(s) of bilirubin neurotoxicity.
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Affiliation(s)
- Thor W R Hansen
- Division of Paediatric and Adolescent Medicine, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; and Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Ronald J Wong
- Division of Paediatric and Adolescent Medicine, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; and Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - David K Stevenson
- Division of Paediatric and Adolescent Medicine, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; and Department of Pediatrics, Stanford University School of Medicine, Stanford, California
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20
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Johnson J, Flores MG, Rosa J, Han C, Salvi AM, DeMali KA, Jagnow JR, Sparks A, Haim H. The High Content of Fructose in Human Semen Competitively Inhibits Broad and Potent Antivirals That Target High-Mannose Glycans. J Virol 2020; 94:e01749-19. [PMID: 32102878 PMCID: PMC7163146 DOI: 10.1128/jvi.01749-19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/17/2020] [Indexed: 11/20/2022] Open
Abstract
Semen is the primary transmission vehicle for various pathogenic viruses. Initial steps of transmission, including cell attachment and entry, likely occur in the presence of semen. However, the unstable nature of human seminal plasma and its toxic effects on cells in culture limit the ability to study in vitro virus infection and inhibition in this medium. We found that whole semen significantly reduces the potency of antibodies and microbicides that target glycans on the envelope glycoproteins (Envs) of HIV-1. The extraordinarily high concentration of the monosaccharide fructose in semen contributes significantly to the effect by competitively inhibiting the binding of ligands to α1,2-linked mannose residues on Env. Infection and inhibition in whole human seminal plasma are accurately mimicked by a stable synthetic simulant of seminal fluid that we formulated. Our findings indicate that, in addition to the protein content of biological secretions, their small-solute composition impacts the potency of antiviral microbicides and mucosal antibodies.IMPORTANCE Biological secretions allow viruses to spread between individuals. Each type of secretion has a unique composition of proteins, salts, and sugars, which can affect the infectivity potential of the virus and inhibition of this process. Here, we describe HIV-1 infection and inhibition in whole human seminal plasma and a synthetic simulant that we formulated. We discovered that the sugar fructose in semen decreases the activity of a broad and potent class of antiviral agents that target mannose sugars on the envelope protein of HIV-1. This effect of semen fructose likely reduces the efficacy of such inhibitors to prevent the sexual transmission of HIV-1. Our findings suggest that the preclinical evaluation of microbicides and vaccine-elicited antibodies will be improved by their in vitro assessment in synthetic formulations that simulate the effects of semen on HIV-1 infection and inhibition.
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Affiliation(s)
- Jacklyn Johnson
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Manuel G Flores
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - John Rosa
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Changze Han
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Alicia M Salvi
- Department of Biochemistry, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Kris A DeMali
- Department of Biochemistry, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Jennifer R Jagnow
- In Vitro Fertilization and Reproductive Testing Laboratory, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Amy Sparks
- In Vitro Fertilization and Reproductive Testing Laboratory, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Hillel Haim
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
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21
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Ricciardi L, Guzzi R, Rizzuti B, Ionescu A, Aiello I, Ghedini M, La Deda M. Anionic versus neutral Pt (II) complexes: The relevance of the charge for human serum albumin binding. J Inorg Biochem 2020; 206:111024. [PMID: 32070915 DOI: 10.1016/j.jinorgbio.2020.111024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/30/2020] [Accepted: 02/09/2020] [Indexed: 10/25/2022]
Abstract
The focus of this work is pointing out the different behavior of two structurally related Pt(II) complexes, the anionic cyclometalated NBu4[(Bzq)Pt(Thio)], 1 and the neutral [(Phen)Pt(Thio)], 2, (Bzq = benzo[h]quinoline, Phen = 1,10-phenantroline, Thio = 1,2-benzenedithiolate), on the interaction with human serum albumin (HSA), a key drug-delivery protein in the bloodstream. Being very limited the number of anionic Pt(II) complexes reported to date, this is a pioneering example of report on a protein-ligand interaction involving a negatively charged platinum compound. The study was carried out by using fluorescence spectroscopy, differential scanning calorimetry and molecular docking simulations. The results revealed a strong binding affinity between the anionic compound and the protein, whereas a weak/moderate binding interaction was highlighted for the neutral one. Comparative studies with site specific ligands (warfarin and ibuprofen), allowed us to identify the protein binding sites of the two compounds. The work aims to shed light on the relevance of the charge in designing new drugs with a favorable binding affinity for HSA, which strongly contributes to influence their pharmacological and toxicological profile.
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Affiliation(s)
- Loredana Ricciardi
- CNR NANOTEC - Institute of Nanotechnology, UOS Cosenza, 87036 Arcavacata di Rende, CS, Italy.
| | - Rita Guzzi
- CNR NANOTEC - Institute of Nanotechnology, UOS Cosenza, 87036 Arcavacata di Rende, CS, Italy; Department of Physics, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Bruno Rizzuti
- CNR NANOTEC - Institute of Nanotechnology, UOS Cosenza, 87036 Arcavacata di Rende, CS, Italy
| | - Andreea Ionescu
- MAT_InLAB, Department of Chemistry and Chemical Technology, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Iolinda Aiello
- CNR NANOTEC - Institute of Nanotechnology, UOS Cosenza, 87036 Arcavacata di Rende, CS, Italy; MAT_InLAB, Department of Chemistry and Chemical Technology, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Mauro Ghedini
- CNR NANOTEC - Institute of Nanotechnology, UOS Cosenza, 87036 Arcavacata di Rende, CS, Italy; MAT_InLAB, Department of Chemistry and Chemical Technology, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Massimo La Deda
- CNR NANOTEC - Institute of Nanotechnology, UOS Cosenza, 87036 Arcavacata di Rende, CS, Italy; MAT_InLAB, Department of Chemistry and Chemical Technology, University of Calabria, 87036 Arcavacata di Rende, CS, Italy.
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22
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Chowdhury S, Bhuiya S, Haque L, Das S. In-depth investigation of the binding of flavonoid taxifolin with bovine hemoglobin at physiological pH: Spectroscopic and molecular docking studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 225:117513. [PMID: 31521000 DOI: 10.1016/j.saa.2019.117513] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/30/2019] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
The use of bioactive flavonoids as drugs has long mesmerized the scientific world. Their small size and planar structure enables them to interact with limitless substrates especially biomolecules. Taxifolin is a flavonoid well known for its anti-oxidizing and metal chelating properties. Its interaction with a few biomolecules has been studied so far to exploit its pharmacological activities. Hemoglobin, an iron containing macromolecule acts as a major carrier protein and is also associated with the occurrence of many diseases. Our present study lays emphasis on the interaction of flavanonol taxifolin with bovine hemoglobin at physiological pH. This was achieved by monitoring the changes in the absorbance, fluorescence, anisotropic, lifetime and circular dichroic spectra. Benesi-Hildebrand plot determined a binding constant value of 20.0 × 103 M-1 at 25 °C. Stern-Volmer quenching studies reveal that the binding is associated with a static mode of quenching. The complexation is thermodynamically favored as indicated by the negative value of enthalpy and positive value of entropy changes seen from the van't Hoff plot. Theoretical DFT calculations were used to find out an optimized geometry and HOMO-LUMO energy gap for taxifolin. Molecular docking studies revealed the location of taxifolin inside the hemoglobin moiety.
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Affiliation(s)
- Susmita Chowdhury
- Biophysical Chemistry Laboratory, Physical Chemistry Section, Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Sutanwi Bhuiya
- Biophysical Chemistry Laboratory, Physical Chemistry Section, Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Lucy Haque
- Biophysical Chemistry Laboratory, Physical Chemistry Section, Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Suman Das
- Biophysical Chemistry Laboratory, Physical Chemistry Section, Department of Chemistry, Jadavpur University, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India.
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Singh G, Kaur M, Aswal VK, Kang TS. Aqueous colloidal systems of bovine serum albumin and functionalized surface active ionic liquids for material transport. RSC Adv 2020; 10:7073-7082. [PMID: 35493898 PMCID: PMC9049728 DOI: 10.1039/c9ra05549e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 02/04/2020] [Indexed: 12/21/2022] Open
Abstract
Physicochemical and computational investigation of complexation between BSA and SAILs with application in material transport.
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Affiliation(s)
- Gagandeep Singh
- Department of Chemistry
- UGC-Centre for Advance Studies – II
- Guru Nanak Dev University
- Amritsar
- India
| | - Manvir Kaur
- Department of Chemistry
- UGC-Centre for Advance Studies – II
- Guru Nanak Dev University
- Amritsar
- India
| | - Vinod Kumar Aswal
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
| | - Tejwant Singh Kang
- Department of Chemistry
- UGC-Centre for Advance Studies – II
- Guru Nanak Dev University
- Amritsar
- India
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24
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Albumin Modifies Responses to Hematopoietic Stem Cell Mobilizing Agents in Mice. Cells 2019; 9:cells9010004. [PMID: 31861319 PMCID: PMC7017167 DOI: 10.3390/cells9010004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/13/2019] [Accepted: 12/15/2019] [Indexed: 12/15/2022] Open
Abstract
Albumin, the most abundant plasma protein, not only controls osmotic blood pressure, but also serves as a carrier for various small molecules, including pharmaceuticals. Its impact on pharmacological properties of many drugs has been extensively studied over decades. Here, we focus on its interaction with the following mobilizing agents: Granulocyte-colony stimulating factor (G-CSF) and AMD3100, where such analyses are lacking. These compounds are widely used for hematopoietic stem cell mobilization of healthy donors or patients. Using albumin-deficient (Alb−/−) mice, we studied the contribution of albumin to mobilization outcomes. Mobilization with the bicyclam CXCR4 antagonist AMD3100 was attenuated in Alb−/− mice compared to wild-type littermates. By contrast, mobilization with recombinant human G-CSF (rhG-CSF), administered twice daily over a five-day course, was significantly increased in Alb−/− mice. In terms of a mechanism, we show that rhG-CSF bioavailability in the bone marrow is significantly improved in Alb−/− mice, compared to wild-type (WT) littermates, where rhG-CSF levels dramatically drop within a few hours of the injection. These observations likely explain the favorable mobilization outcomes with split-dose versus single-dose administration of rhG-CSF to healthy donors.
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25
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Hay MP, Shin HN, Wong WW, Sahimi WW, Vaz ATD, Yadav P, Anderson RF, Hicks KO, Wilson WR. Benzotriazine Di-Oxide Prodrugs for Exploiting Hypoxia and Low Extracellular pH in Tumors. Molecules 2019; 24:E2524. [PMID: 31295864 PMCID: PMC6680510 DOI: 10.3390/molecules24142524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/05/2019] [Accepted: 07/06/2019] [Indexed: 12/31/2022] Open
Abstract
Extracellular acidification is an important feature of tumor microenvironments but has yet to be successfully exploited in cancer therapy. The reversal of the pH gradient across the plasma membrane in cells that regulate intracellular pH (pHi) has potential to drive the selective uptake of weak acids at low extracellular pH (pHe). Here, we investigate the dual targeting of low pHe and hypoxia, another key feature of tumor microenvironments. We prepared eight bioreductive prodrugs based on the benzotriazine di-oxide (BTO) nucleus by appending alkanoic or aminoalkanoic acid sidechains. The BTO acids showed modest selectivity for both low pHe (pH 6.5 versus 7.4, ratios 2 to 5-fold) and anoxia (ratios 2 to 8-fold) in SiHa and FaDu cell cultures. Related neutral BTOs were not selective for acidosis, but had greater cytotoxic potency and hypoxic selectivity than the BTO acids. Investigation of the uptake and metabolism of representative BTO acids confirmed enhanced uptake at low pHe, but lower intracellular concentrations than expected for passive diffusion. Further, the modulation of intracellular reductase activity and competition by the cell-excluded electron acceptor WST-1 suggests that the majority of metabolic reductions of BTO acids occur at the cell surface, compromising the engagement of the resulting free radicals with intracellular targets. Thus, the present study provides support for designing bioreductive prodrugs that exploit pH-dependent partitioning, suggesting, however, that that the approach should be applied to prodrugs with obligate intracellular activation.
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Affiliation(s)
- Michael P Hay
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Symonds St, Auckland 1142, New Zealand
| | - Hong Nam Shin
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Way Wua Wong
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Wan Wan Sahimi
- School of Chemical Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Aaron T D Vaz
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Pooja Yadav
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Robert F Anderson
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Symonds St, Auckland 1142, New Zealand
- School of Chemical Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Kevin O Hicks
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Symonds St, Auckland 1142, New Zealand
| | - William R Wilson
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand.
- Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Symonds St, Auckland 1142, New Zealand.
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26
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Ravelli D, Isernia P, Acquarulo A, Profumo A, Merli D. Voltammetric Determination of Binding Constant and Stoichiometry of Albumin (Human, Bovine, Ovine)–Drug Complexes. Anal Chem 2019; 91:10110-10115. [DOI: 10.1021/acs.analchem.9b02088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Davide Ravelli
- Università degli Studi di Pavia, Dipartimento di Chimica, Viale Taramelli 12, 27100 Pavia, Italia
| | - Paola Isernia
- Fondazione IRCCS Policlinico San Matteo, Servizio di Immunoematologia e Medicina Trasfusionale, Centro Lavorazione e Validazione Emocomponenti (CLV), Viale Camillo Golgi 19, 27100 Pavia, Italia
| | - Andrea Acquarulo
- Università degli Studi di Pavia, Dipartimento di Chimica, Viale Taramelli 12, 27100 Pavia, Italia
| | - Antonella Profumo
- Università degli Studi di Pavia, Dipartimento di Chimica, Viale Taramelli 12, 27100 Pavia, Italia
| | - Daniele Merli
- Università degli Studi di Pavia, Dipartimento di Chimica, Viale Taramelli 12, 27100 Pavia, Italia
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27
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Park J, Kim Y. Colloidal Fluorophore Aggregates for the Selective Detection of Albumins in Solution and on Electrophoresis Gels. Chembiochem 2018; 20:350-354. [DOI: 10.1002/cbic.201800608] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Indexed: 01/03/2023]
Affiliation(s)
- Jihee Park
- Department of ChemistryKyung Hee University 26 Kyungheedae-ro Dongdaemun-gu Seoul 02447 Republic of Korea
| | - Youngmi Kim
- Department of ChemistryKyung Hee University 26 Kyungheedae-ro Dongdaemun-gu Seoul 02447 Republic of Korea
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Abstract
Colchicine is an alkaloid which was originally extracted from bulbs of a plant called Colchicum autumnale (meadow saffron). Its active pharmacological component was isolated in 1820 and in 1833 the active ingredient was purified and named colchicine. It consists of three hexameric rings termed A, B, and C. It was first recommended for the treatment of gout by Alexander of Tralles in the sixth century AD. Later it has been employed for suggested and approved indications including primary biliary cirrhosis (PBC), alcohol induced hepatitis, psoriasis, Behçet disease, Sweet syndrome, scleroderma, sarcoidosis and amyloidosis. Perhaps the most effective results have been obtained in the prophylaxis of familial Mediterranean fever (FMF). Colchicine is absorbed in the jejunum and ileum and is trapped in the body tissues. It is metabolized in the liver and the intestine by cytochrome P (CYP) 450 3A4 and P-glycoprotein (PGY) 1. Colchicine is excreted mainly by the biliary system, intestines and the kidneys. It has a narrow therapeutic range, but with normal liver and kidney functions is relatively safe and can be used during pregnancy, nursing and in infants. The main mechanism of action of colchicine is probably through interaction with microtubules affecting leukocyte chemotaxis, thereby suppressing inflammation. The blood level of colchicine may be affected by concomitant drug administration and therefore, caution should be exercised when such medications are added.
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Gunaydin H, Altman MD, Ellis JM, Fuller P, Johnson SA, Lahue B, Lapointe B. Strategy for Extending Half-life in Drug Design and Its Significance. ACS Med Chem Lett 2018; 9:528-533. [PMID: 29937977 DOI: 10.1021/acsmedchemlett.8b00018] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 04/02/2018] [Indexed: 01/22/2023] Open
Abstract
Preclinical optimization of compounds toward viable drug candidates requires an integrated understanding of properties that impact predictions of the clinically efficacious dose. The importance of optimizing half-life, unbound clearance, and potency and how they impact dose predictions are discussed in this letter. Modest half-life improvements for short half-life compounds can dramatically lower the efficacious dose. The relationship between dose and half-life is nonlinear when unbound clearance is kept constant, whereas the relationship between dose and unbound clearance is linear when half-life is kept constant. Due to this difference, we show that dose is more sensitive to changes in half-life than changes in unbound clearance when half-lives are shorter than 2 h. Through matched molecular pair analyses, we also show that the strategic introduction of halogens is likely to increase half-life and lower projected human dose even though increased lipophilicity does not guarantee extended half-life.
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Lee U, Kwon MH, Kang HE. Pharmacokinetic alterations in poloxamer 407-induced hyperlipidemic rats. Xenobiotica 2018; 49:611-625. [PMID: 29658375 DOI: 10.1080/00498254.2018.1466212] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
1. Plasma lipid profile abnormalities in hyperlipidemia can potentially alter the pharmacokinetics of a drug in a complex manner. To evaluate these pharmacokinetic alterations in hyperlipidemia and to determine the underlying mechanism(s), poloxamer 407-induced hyperlipidemic rats (HL rats), a well-established animal model of hyperlipidemia have been used. 2. In this review, we summarize findings on the pathophysiological and gene expression changes in drug-metabolizing enzymes and transporters in HL rats. We discuss pharmacokinetic changes in drugs metabolized primarily via hepatic cytochrome P450 (CYPs) in terms of alterations in hepatic intrinsic clearance (CL'int), free fraction in plasma (fu) and hepatic blood flow rate (QH), depending on the hepatic excretion ratio, as well as drugs eliminated primarily by mechanisms other than hepatic CYPs. 3. For lipoprotein-bound drugs, increased binding to lipoproteins resulted in lower fu values and volumes of distribution, with some exceptions. Generally, slower non-renal clearance (or total body clearance) of drugs that are substrates of hepatic CYP3A and CYP2C is well explained by the following factors: alterations in CL'int (due to down-regulation of hepatic CYPs), decreased fu and/or possible decreased QH. 4. These consistent findings across studies in HL rats suggest more studies are needed at the clinical level for optimal pharmacotherapies for hyperlipidemia.
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Affiliation(s)
- Unji Lee
- a Department of Pharmacy , Ewha Womans University Medical Center , Seoul , South Korea
| | - Mi Hye Kwon
- b College of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences , The Catholic University of Korea , Bucheon , South Korea
| | - Hee Eun Kang
- b College of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences , The Catholic University of Korea , Bucheon , South Korea
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31
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Shen X, Laber CH, Sarkar U, Galazzi F, Johnson KM, Mahieu NG, Hillebrand R, Fuchs-Knotts T, Barnes CL, Baker GA, Gates KS. Exploiting the Inherent Photophysical Properties of the Major Tirapazamine Metabolite in the Development of Profluorescent Substrates for Enzymes That Catalyze the Bioreductive Activation of Hypoxia-Selective Anticancer Prodrugs. J Org Chem 2018; 83:3126-3131. [DOI: 10.1021/acs.joc.7b03035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Yin L, Yuvienco C, Montclare JK. Protein based therapeutic delivery agents: Contemporary developments and challenges. Biomaterials 2017; 134:91-116. [PMID: 28458031 DOI: 10.1016/j.biomaterials.2017.04.036] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/18/2017] [Accepted: 04/21/2017] [Indexed: 12/15/2022]
Abstract
As unique biopolymers, proteins can be employed for therapeutic delivery. They bear important features such as bioavailability, biocompatibility, and biodegradability with low toxicity serving as a platform for delivery of various small molecule therapeutics, gene therapies, protein biologics and cells. Depending on size and characteristic of the therapeutic, a variety of natural and engineered proteins or peptides have been developed. This, coupled to recent advances in synthetic and chemical biology, has led to the creation of tailor-made protein materials for delivery. This review highlights strategies employing proteins to facilitate the delivery of therapeutic matter, addressing the challenges for small molecule, gene, protein and cell transport.
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Affiliation(s)
- Liming Yin
- Department of Chemical and Biomolecular Engineering, NYU Tandon School of Engineering, Brooklyn, NY 11201, United States
| | - Carlo Yuvienco
- Department of Chemical and Biomolecular Engineering, NYU Tandon School of Engineering, Brooklyn, NY 11201, United States
| | - Jin Kim Montclare
- Department of Chemical and Biomolecular Engineering, NYU Tandon School of Engineering, Brooklyn, NY 11201, United States; Department of Chemistry, New York University, New York, NY 10003, United States; Department of Biomaterials, NYU College of Dentistry, New York, NY 10010, United States; Department of Biochemistry, SUNY Downstate Medical Center, Brooklyn, NY 11203, United States.
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33
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Aw MS, Paniwnyk L. Overcoming T. gondii infection and intracellular protein nanocapsules as biomaterials for ultrasonically controlled drug release. Biomater Sci 2017; 5:1944-1961. [DOI: 10.1039/c7bm00425g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
One of the pivotal matters of concern in intracellular drug delivery is the preparation of biomaterials containing drugs that are compatible with the host target.
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Affiliation(s)
- M. S. Aw
- School of Life Sciences
- Biomolecular and Sports Science
- Faculty of Health and Life Sciences
- Coventry University
- Coventry
| | - L. Paniwnyk
- School of Life Sciences
- Biomolecular and Sports Science
- Faculty of Health and Life Sciences
- Coventry University
- Coventry
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34
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Chen Q, Liu Z. Albumin Carriers for Cancer Theranostics: A Conventional Platform with New Promise. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:10557-10566. [PMID: 27111654 DOI: 10.1002/adma.201600038] [Citation(s) in RCA: 191] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 02/05/2016] [Indexed: 05/21/2023]
Abstract
Theranostic nanoplatforms with integrated diagnostic and therapeutic functions, aiming at imaging-guided therapy to improve treatment planning, as well as combination therapy to enhance treatment efficacy, have received tremendous attention in recent years. Among numerous types of functional nanomaterials explored in this field, protein-based nanocarriers with inherent biocompatibility have also been selected as building blocks to construct multifunctional theranostic platforms. In particular, albumin, which has been extensively used as drug-delivery carriers for decades, has shown great new promise in the construction of novel imaging and therapeutic nanoagents, as demonstrated by a number of recent studies. IHere, the motivations of using albumins to build up nanoscale theranostics are discussed, and the latest progress/future perspectives in this direction are summarized.
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Affiliation(s)
- Qian Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University Suzhou, Jiangsu, 215123, China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University Suzhou, Jiangsu, 215123, China
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35
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Siegel RA, Kirtane AR, Panyam J. Assessing the Benefits of Drug Delivery by Nanocarriers: A Partico/Pharmacokinetic Framework. IEEE Trans Biomed Eng 2016; 64:2176-2185. [PMID: 27913319 DOI: 10.1109/tbme.2016.2632733] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE An in vivo kinetic framework is introduced to analyze and predict the quantitative advantage of using nanocarriers to deliver drugs, especially anticancer agents, compared to administering the same drugs in their free form. METHODS This framework recognizes three levels of kinetics. First is the particokinetics associated with deposition of nanocarriers into tissues associated with drug effect and toxicity, their residence inside those tissues, and elimination of the nanocarriers from the body. Second is the release pattern in time of free drug from the nanocarriers. Third is the pharmacokinetics of free drug, as it relates to deposition and elimination processes in the target and toxicity associated tissues, and total body clearance. A figure of merit, the drug targeting index (DTI), is used to quantitate the benefit of nanocarrier-based drug delivery by considering the effects of preferential deposition of nanoparticles into target tissues and relative avoidance of tissues associated with drug toxicity, compared to drug that is administered in its free form. RESULTS General methods are derived for calculating DTI when appropriate particokinetic, pharmacokinetic, and drug release rate information is available, and it is shown that relatively simple algebraic forms result when some common assumptions are made. CONCLUSION This approach may find use in developing and selecting nanocarrier formulations, either for populations or for individuals.
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36
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Manouchehri F, Izadmanesh Y, Aghaee E, Ghasemi JB. Experimental, computational and chemometrics studies of BSA-vitamin B6 interaction by UV–Vis, FT-IR, fluorescence spectroscopy, molecular dynamics simulation and hard-soft modeling methods. Bioorg Chem 2016; 68:124-36. [DOI: 10.1016/j.bioorg.2016.07.014] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Revised: 07/28/2016] [Accepted: 07/29/2016] [Indexed: 12/13/2022]
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37
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Kwon MH, Yoon JN, Baek YJ, Kim YC, Cho YY, Kang HE. Effects of poloxamer 407-induced hyperlipidemia on hepatic multidrug resistance protein 2 (Mrp2/Abcc2) and the pharmacokinetics of mycophenolic acid in rats. Biopharm Drug Dispos 2016; 37:352-65. [DOI: 10.1002/bdd.2017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 05/15/2016] [Accepted: 05/24/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Mi Hye Kwon
- College of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences; The Catholic University of Korea; Bucheon South Korea
| | - Ji Na Yoon
- College of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences; The Catholic University of Korea; Bucheon South Korea
| | - Yu Jin Baek
- College of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences; The Catholic University of Korea; Bucheon South Korea
| | - Yu Chul Kim
- Discovery Research Center; C&C Research Laboratories; Suwon South Korea
| | - Yong Yeon Cho
- College of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences; The Catholic University of Korea; Bucheon South Korea
| | - Hee Eun Kang
- College of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences; The Catholic University of Korea; Bucheon South Korea
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38
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Clinical Pharmacology Studies in Critically Ill Children. Pharm Res 2016; 34:7-24. [PMID: 27585904 DOI: 10.1007/s11095-016-2033-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 08/25/2016] [Indexed: 12/19/2022]
Abstract
Developmental and physiological changes in children contribute to variation in drug disposition with age. Additionally, critically ill children suffer from various life-threatening conditions that can lead to pathophysiological alterations that further affect pharmacokinetics (PK). Some factors that can alter PK in this patient population include variability in tissue distribution caused by protein binding changes and fluid shifts, altered drug elimination due to organ dysfunction, and use of medical interventions that can affect drug disposition (e.g., extracorporeal membrane oxygenation and continuous renal replacement therapy). Performing clinical studies in critically ill children is challenging because there is large inter-subject variability in the severity and time course of organ dysfunction; some critical illnesses are rare, which can affect subject enrollment; and critically ill children usually have multiple organ failure, necessitating careful selection of a study design. As a result, drug dosing in critically ill children is often based on extrapolations from adults or non-critically ill children. Dedicated clinical studies in critically ill children are urgently needed to identify optimal dosing of drugs in this vulnerable population. This review will summarize the effect of critical illness on pediatric PK, the challenges associated with performing studies in this vulnerable subpopulation, and the clinical PK studies performed to date for commonly used drugs.
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39
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Pandey S, Gautam N, Kushwaha HN, Singh SK. Pharmacokinetic studies of a novel trioxane antimalarial (99/411) in rats and monkeys using LC-MS/MS. Biomed Chromatogr 2016; 30:2038-2043. [DOI: 10.1002/bmc.3782] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 06/12/2016] [Accepted: 06/24/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Saurabh Pandey
- Pharmacokinetics and Metabolism Division; Central Drug Research Institute; UP, Lucknow India
- School of Pharmacy; The University of Queensland; Brisbane QLD, Australia
| | - Nagsen Gautam
- Pharmacokinetics and Metabolism Division; Central Drug Research Institute; UP, Lucknow India
- Department of Pharmaceutical Sciences; University of Nebraska Medical Center; Nebraska Omaha USA
| | - Hari Narayan Kushwaha
- Pharmacokinetics and Metabolism Division; Central Drug Research Institute; UP, Lucknow India
| | - Shio Kumar Singh
- Pharmacokinetics and Metabolism Division; Central Drug Research Institute; UP, Lucknow India
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40
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Mohseni-Shahri FS, Housaindokht MR, Bozorgmehr MR, Moosavi-Movahedi AA. Comparative study of the effects of the structurally similar flavonoids quercetin and taxifolin on the therapeutic behavior of alprazolam. CAN J CHEM 2016. [DOI: 10.1139/cjc-2015-0177] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
After a meal rich in plant products, dietary flavonoids can be detected in plasma as serum albumin bound conjugates. Flavonoid–albumin binding is expected to control the bioavailability of drugs. In this study, the binding of alprazolam (ALP) and human serum albumin (HSA) has been investigated in the absence and presence of two flavonoids with similar structures, quercetin (QUER) and taxifolin (TAX), by means of fluorescence spectroscopy, chemometrics, and molecular dynamics simulation. Our results show that ALP has the ability to quench the intrinsic fluorescence of HSA. This quenching is affected by flavonoids. The presence of QUER and TAX decreased the quenching constants, binding constants, and equilibrium constants associated with ALP binding to HSA. The effect of ALP and both flavonoids on the conformation of HSA was analyzed using synchronous fluorescence spectroscopy. Our results indicate a conformational change of HSA with the addition of ligands. The molecular dynamics study makes an important contribution to understanding the effect of the binding of ALP, QUER, and TAX on conformational changes of HSA and modification of its tertiary structure in the absence and presence of flavonoids. All of these results may have relevant consequences in rationalizing the interferences of common food and drugs.
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41
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Alnabulsi S, Santina E, Russo I, Hussein B, Kadirvel M, Chadwick A, Bichenkova EV, Bryce RA, Nolan K, Demonacos C, Stratford IJ, Freeman S. Non-symmetrical furan-amidines as novel leads for the treatment of cancer and malaria. Eur J Med Chem 2016; 111:33-45. [PMID: 26854376 DOI: 10.1016/j.ejmech.2016.01.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 12/08/2015] [Accepted: 01/15/2016] [Indexed: 11/21/2022]
Abstract
NRH:quinone oxidoreductase 2 enzyme (NQO2) is a potential therapeutic target in cancer and neurodegenerative diseases, with roles in either chemoprevention or chemotherapy. Here we report the design, synthesis and evaluation of non-symmetrical furan-amidines and their analogues as novel selective NQO2 inhibitors with reduced adverse off-target effects, such as binding to DNA. A pathway for the synthesis of the non-symmetrical furan-amidines was established from the corresponding 1,4-diketones. The synthesized non-symmetrical furan-amidines and their analogues showed potent NQO2 inhibition activity with nano-molar IC50 values. The most active compounds were non-symmetrical furan-amidines with meta- and para-nitro substitution on the aromatic ring, with IC50 values of 15 nM. In contrast to the symmetric furan-amidines, which showed potent intercalation in the minor grooves of DNA, the synthesized non-symmetrical furan-amidines showed no affinity towards DNA, as demonstrated by DNA melting temperature experiments. In addition, Plasmodium parasites, which possess their own quinone oxidoreductase PfNDH2, were inhibited by the non-symmetrical furan-amidines, the most active possessing a para-fluoro substituent (IC50 9.6 nM). The high NQO2 inhibition activity and nanomolar antimalarial effect of some of these analogues suggest the lead compounds are worthy of further development and optimization as potential drugs for novel anti-cancer and antimalarial strategies.
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Affiliation(s)
- Soraya Alnabulsi
- Manchester Pharmacy School, University of Manchester, Manchester M13 9PT, UK
| | - Elham Santina
- Manchester Pharmacy School, University of Manchester, Manchester M13 9PT, UK
| | - Ilaria Russo
- Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Buthaina Hussein
- Manchester Pharmacy School, University of Manchester, Manchester M13 9PT, UK
| | - Manikandan Kadirvel
- Manchester Pharmacy School, University of Manchester, Manchester M13 9PT, UK; CRUK-EPSRC Cancer Imaging Centre in Cambridge and Manchester, Manchester M20 3LJ, UK
| | - Amy Chadwick
- Manchester Pharmacy School, University of Manchester, Manchester M13 9PT, UK
| | - Elena V Bichenkova
- Manchester Pharmacy School, University of Manchester, Manchester M13 9PT, UK
| | - Richard A Bryce
- Manchester Pharmacy School, University of Manchester, Manchester M13 9PT, UK
| | - Karen Nolan
- Manchester Pharmacy School, University of Manchester, Manchester M13 9PT, UK
| | | | - Ian J Stratford
- Manchester Pharmacy School, University of Manchester, Manchester M13 9PT, UK
| | - Sally Freeman
- Manchester Pharmacy School, University of Manchester, Manchester M13 9PT, UK.
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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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43
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Morris TT, Ruan Y, Lewis VA, Narendran A, Gailer J. Fortification of blood plasma from cancer patients with human serum albumin decreases the concentration of cisplatin-derived toxic hydrolysis products in vitro. Metallomics 2015; 6:2034-41. [PMID: 25255207 DOI: 10.1039/c4mt00220b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
While cisplatin (CP) is still one of the world's bestselling anticancer drugs, its intravenous administration is inherently associated with severe, dose limiting toxic side-effects. Although the molecular basis of the latter are not well understood, biochemical transformations of CP in blood and the interaction of the generated platinum species with plasma proteins likely play a critical role since these processes will ultimately determine which platinum-species reach the intended tumor cells as well as non-target cells. Compared to healthy subjects, cancer patients often have decreased plasma human serum albumin (HSA) concentrations. Little, however, is known about how the plasma HSA concentration will affect the metabolism of CP. To gain insight, we obtained blood plasma from healthy adults (n = 20, 42 ± 4 g HSA per L) and pediatric cancer patients (n = 11, 26 ± 7 g HSA per L). After the incubation of plasma at 37 °C, a pharmacologically relevant dose of CP was added and the Pt-distribution therein was determined by size-exclusion chromatography coupled on-line to an inductively coupled plasma atomic emission spectrometer. At the 2 h time point, a 5.9% increase of toxic CP-derived hydrolysis products was detected in pediatric cancer patient plasma, while 9.8% less platinum was protein bound compared to plasma from healthy controls. These in vitro results suggest that the elevated concentration of highly reactive free CP-derived hydrolysis products in plasma may cause the toxic side-effects in cancer patients. More importantly, the deliberate increase of the plasma HSA concentration in cancer patients prior to CP treatment would represent a simple strategy to possibly alleviate the fraction of patients that suffer from drug induced toxic side-effects.
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Affiliation(s)
- Thomas T Morris
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada.
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Breault-Turcot J, Masson JF. Microdialysis SPR: diffusion-gated sensing in blood. Chem Sci 2015; 6:4247-4254. [PMID: 29218191 PMCID: PMC5707466 DOI: 10.1039/c5sc00716j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 05/07/2015] [Indexed: 11/21/2022] Open
Abstract
Chemical measurements are rarely performed in crude blood due to the poor performance of sensors and devices exposed to biofluids. In particular, biosensors have been severely limited for detection in whole blood due to surface fouling from proteins, the interaction of cells with the sensor surface and potential optical interference when considering optical methods of analysis. To solve this problem, a dialysis chamber was introduced to a surface plasmon resonance (SPR) biosensor to create a diffusion gate for large molecules. This dialysis chamber relies on the faster migration of small molecules through a microporous membrane towards a sensor, located at a specified distance from the membrane. Size filtering and diffusion through a microporous membrane restricted the access of blood cells and larger biomolecules to a sensing chamber, while smaller, faster diffusing biomolecules migrated preferentially to the sensor with limited interference from blood and serum. The affinity of a small peptide (DBG178) with anti-atherosclerotic activity and targeting type B scavenger receptor CD36 was successfully monitored at micromolar concentrations in human serum and blood without any pre-treatment of the sample. This concept could be generally applied to a variety of targets for biomolecular interaction monitoring and quantification directly in whole blood, and could find potential applications in biochemical assays, pharmacokinetic drug studies, disease treatment monitoring, implantable plasmonic sensors, and point-of-care diagnostics.
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Affiliation(s)
- Julien Breault-Turcot
- Departement de chimie , Université de Montréal , CP 6128 Succ. Centre-Ville , Montreal , QC H3C 3J7 , Canada . ; Tel: +1-514-343-7342
| | - Jean-Francois Masson
- Departement de chimie , Université de Montréal , CP 6128 Succ. Centre-Ville , Montreal , QC H3C 3J7 , Canada . ; Tel: +1-514-343-7342
- Centre for Self-Assembled Chemical Structures (CSACS) , Canada
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Lambrinidis G, Vallianatou T, Tsantili-Kakoulidou A. In vitro, in silico and integrated strategies for the estimation of plasma protein binding. A review. Adv Drug Deliv Rev 2015; 86:27-45. [PMID: 25819487 DOI: 10.1016/j.addr.2015.03.011] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 02/11/2015] [Accepted: 03/20/2015] [Indexed: 12/28/2022]
Abstract
Plasma protein binding (PPB) strongly affects drug distribution and pharmacokinetic behavior with consequences in overall pharmacological action. Extended plasma protein binding may be associated with drug safety issues and several adverse effects, like low clearance, low brain penetration, drug-drug interactions, loss of efficacy, while influencing the fate of enantiomers and diastereoisomers by stereoselective binding within the body. Therefore in holistic drug design approaches, where ADME(T) properties are considered in parallel with target affinity, considerable efforts are focused in early estimation of PPB mainly in regard to human serum albumin (HSA), which is the most abundant and most important plasma protein. The second critical serum protein α1-acid glycoprotein (AGP), although often underscored, plays also an important and complicated role in clinical therapy and thus the last years it has been studied thoroughly too. In the present review, after an overview of the principles of HSA and AGP binding as well as the structure topology of the proteins, the current trends and perspectives in the field of PPB predictions are presented and discussed considering both HSA and AGP binding. Since however for the latter protein systematic studies have started only the last years, the review focuses mainly to HSA. One part of the review highlights the challenge to develop rapid techniques for HSA and AGP binding simulation and their performance in assessment of PPB. The second part focuses on in silico approaches to predict HSA and AGP binding, analyzing and evaluating structure-based and ligand-based methods, as well as combination of both methods in the aim to exploit the different information and overcome the limitations of each individual approach. Ligand-based methods use the Quantitative Structure-Activity Relationships (QSAR) methodology to establish quantitate models for the prediction of binding constants from molecular descriptors, while they provide only indirect information on binding mechanism. Efforts for the establishment of global models, automated workflows and web-based platforms for PPB predictions are presented and discussed. Structure-based methods relying on the crystal structures of drug-protein complexes provide detailed information on the underlying mechanism but are usually restricted to specific compounds. They are useful to identify the specific binding site while they may be important in investigating drug-drug interactions, related to PPB. Moreover, chemometrics or structure-based modeling may be supported by experimental data a promising integrated alternative strategy for ADME(T) properties optimization. In the case of PPB the use of molecular modeling combined with bioanalytical techniques is frequently used for the investigation of AGP binding.
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Garzón A, Bravo I, Carrión-Jiménez MR, Rubio-Moraga Á, Albaladejo J. Spectroscopic study on binding of gentisic acid to bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 150:26-33. [PMID: 26010705 DOI: 10.1016/j.saa.2015.05.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 05/14/2015] [Accepted: 05/15/2015] [Indexed: 06/04/2023]
Abstract
The interaction of (gentisic acid) GA with (bovine serum albumin) BSA has been studied by different spectroscopic techniques. GA is a monoanionic specie at the working pH of 7.4, it was determined by combining UV-Vis absorption spectroscopy and theoretical calculations. A set of fluorescence quenching experiments at different temperatures was carried out employing the native fluorescence of BSA. A Stern-Volmer constant (KSV) of (2.07±0.12)×10(4) mol(-1) L and a binding constant (Ka) of (8.47±4.39)×10(3) were determined at 310 K. The static quenching caused by the BSA-GA complex formation seems to play a significant role in the overall quenching process. A single binding site on BSA for GA was observed. ΔH=-55.6±0.2 kJ mol(-1) and ΔS=-104.3±0.6 J mol(-1) K(-1) were determined in a set of experiments on the dependence of Ka with the temperature. The binding process is, therefore, spontaneous and enthalpy-driven. Van der Waals forces and hydrogen bonds could also play the major role in the binding mode. The secondary structure changes of BSA in the absence and presence of GA were studied by FTIR and UV-Vis absorption spectroscopy.
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Affiliation(s)
- Andrés Garzón
- Departamento de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Paseo de los estudiantes, s/n, 02071 Albacete, Spain.
| | - Iván Bravo
- Departamento de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Paseo de los estudiantes, s/n, 02071 Albacete, Spain
| | - M Rosario Carrión-Jiménez
- Departamento de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Paseo de los estudiantes, s/n, 02071 Albacete, Spain
| | - Ángela Rubio-Moraga
- Instituto Botánico, Facultad de Farmacia, Universidad de Castilla-La Mancha, Paseo de los estudiantes, s/n, 02071 Albacete, Spain
| | - José Albaladejo
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Avenida Camilo José Cela, 10, 13071 Ciudad Real, Spain
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Baker DJ, Atkinson AM, Wilkinson GP, Coope GJ, Charles AD, Leighton B. Characterization of the heterozygous glucokinase knockout mouse as a translational disease model for glucose control in type 2 diabetes. Br J Pharmacol 2014; 171:1629-41. [PMID: 24772483 DOI: 10.1111/bph.12498] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND AND PURPOSE The global heterozygous glucokinase (GK) knockout (gk(wt/del)) male mouse, fed on a high-fat (60% by energy) diet, has provided a robust and reproducible model of hyperglycaemia. This model could be highly relevant to some facets of human type 2 diabetes (T2D). We aimed to investigate the ability of standard therapeutic agents to lower blood glucose at translational doses, and to explore the glucose-lowering potential of novel glucokinase activators (GKAs) in this model. EXPERIMENTAL APPROACH We measured the ability of insulin, metformin, glipizide, exendin-4 and sitagliptin, after acute or repeat dose administration, to lower free-feeding glucose levels in gk(wt/del) mice. Further, we measured the ability of novel GKAs, GKA23, GKA71 and AZD6370 to control glucose either alone or in combination with some standard agents. KEY RESULTS A single dose of insulin (1 unit·kg(-1)), metformin (150, 300 mg·kg(-1)), glipizide (0.1, 0.3 mg·kg(-1)), exendin-4 (2, 20 μg·kg(-1)) and GKAs reduced free-feeding glucose levels. Sitagliptin (10 mg·kg(-1)), metformin (300 mg·kg(-1)) and AZD6370 (30, 400 mg·kg(-1)) reduced glucose excursions on repeat dosing. At a supra-therapeutic dose (400 mg·kg(-1)), AZD6370 also lowered basal levels of glucose without inducing hypoglycaemia. CONCLUSION AND IMPLICATIONS Standard glucose-lowering therapeutic agents demonstrated significant acute glucose lowering in male gk(wt/del) mice at doses corresponding to therapeutic free drug levels in man, suggesting the potential of these mice as a translatable model of human T2D. Novel GKAs also lowered glucose in this mouse model.
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Interactive association of drugs binding to human serum albumin. Int J Mol Sci 2014; 15:3580-95. [PMID: 24583848 PMCID: PMC3975355 DOI: 10.3390/ijms15033580] [Citation(s) in RCA: 235] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 02/17/2014] [Accepted: 02/18/2014] [Indexed: 02/06/2023] Open
Abstract
Human serum albumin (HSA) is an abundant plasma protein, which attracts great interest in the pharmaceutical industry since it can bind a remarkable variety of drugs impacting their delivery and efficacy and ultimately altering the drug’s pharmacokinetic and pharmacodynamic properties. Additionally, HSA is widely used in clinical settings as a drug delivery system due to its potential for improving targeting while decreasing the side effects of drugs. It is thus of great importance from the viewpoint of pharmaceutical sciences to clarify the structure, function, and properties of HSA–drug complexes. This review will succinctly outline the properties of binding site of drugs in IIA subdomain within the structure of HSA. We will also give an overview on the binding characterization of interactive association of drugs to human serum albumin that may potentially lead to significant clinical applications.
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Sooriyaarachchi M, Wedding JL, Harris HH, Gailer J. Simultaneous observation of the metabolism of cisplatin and NAMI-A in human plasma in vitro by SEC-ICP-AES. J Biol Inorg Chem 2014; 19:1049-53. [DOI: 10.1007/s00775-014-1102-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 12/21/2013] [Indexed: 01/06/2023]
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50
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Yamasaki K, Chuang VTG, Maruyama T, Otagiri M. Albumin-drug interaction and its clinical implication. Biochim Biophys Acta Gen Subj 2013; 1830:5435-43. [PMID: 23665585 DOI: 10.1016/j.bbagen.2013.05.005] [Citation(s) in RCA: 297] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 04/30/2013] [Accepted: 05/02/2013] [Indexed: 01/22/2023]
Abstract
BACKGROUND Human serum albumin acts as a reservoir and transport protein for endogenous (e.g. fatty acids or bilirubin) and exogenous compounds (e.g. drugs or nutrients) in the blood. The binding of a drug to albumin is a major determinant of its pharmacokinetic and pharmacodynamic profile. SCOPE OF REVIEW The present review discusses recent findings regarding the nature of drug binding sites, drug-albumin binding in certain diseased states or in the presence of coadministered drugs, and the potential of utilizing albumin-drug interactions in clinical applications. MAJOR CONCLUSIONS Drug-albumin interactions appear to predominantly occur at one or two specific binding sites. The nature of these drug binding sites has been fundamentally investigated as to location, size, charge, hydrophobicity or changes that can occur under conditions such as the content of the endogenous substances in question. Such findings can be useful tools for the analysis of drug-drug interactions or protein binding in diseased states. A change in protein binding is not always a problem in terms of drug therapy, but it can be used to enhance the efficacy of therapeutic agents or to enhance the accumulation of radiopharmaceuticals to targets for diagnostic purposes. Furthermore, several extracorporeal dialysis procedures using albumin-containing dialysates have proven to be an effective tool for removing endogenous toxins or overdosed drugs from patients. GENERAL SIGNIFICANCE Recent findings related to albumin-drug interactions as described in this review are useful for providing safer and efficient therapies and diagnoses in clinical settings. This article is part of a Special Issue entitled Serum Albumin.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
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