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Jagdish RK, Maras JS, Sarin SK. Albumin in Advanced Liver Diseases: The Good and Bad of a Drug! Hepatology 2021; 74:2848-2862. [PMID: 33772846 DOI: 10.1002/hep.31836] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 02/13/2021] [Accepted: 03/17/2021] [Indexed: 12/13/2022]
Abstract
Human serum albumin is the most abundant plasma protein, and it regulates diverse body functions. In patients with advanced and decompensated cirrhosis, serum albumin levels are low because of a reduction in the hepatocyte mass due to disease per se and multiple therapeutic interventions. Because of their oncotic and nononcotic properties, administration of human albumin solutions (HAS) have been found to be beneficial in patients undergoing large-volume paracentesis or who have hepatorenal syndrome or spontaneous bacterial peritonitis. Albumin also improves the functionality of the immune cells and mitigates the severity and risk of infections in advanced cirrhosis. Its long-term administration can modify the course of decompensated cirrhosis patients by reducing the onset of new complications, improving the quality of life, and probably providing survival benefits. There is, however, a need to rationalize the dose, duration, and frequency of albumin therapy in different liver diseases and stages of cirrhosis. In patients with acute-on-chronic liver failure, potentially toxic oxidized isoforms of albumin increase substantially, especially human nonmercaptalbumin and 2, and nitrosoalbumin. The role of administration of HAS in such patients is unclear. Determining whether removal of the pathological and dysfunctional albumin forms in these patients by "albumin dialysis" is helpful, requires additional studies. Use of albumin is not without adverse events. These mainly include allergic and transfusion reactions, volume overload, antibody formation and coagulation derangements. Considering their cost, limited availability, need for a health care setting for their administration, and potential adverse effects, judicious use of HAS in liver diseases is advocated. There is a need for new albumin molecules and economic alternatives in hepatologic practice.
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Affiliation(s)
- Rakesh Kumar Jagdish
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Jaswinder Singh Maras
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Shiv Kumar Sarin
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
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2
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Mendonça LS, Nóbrega C, Tavino S, Brinkhaus M, Matos C, Tomé S, Moreira R, Henriques D, Kaspar BK, Pereira de Almeida L. Ibuprofen enhances synaptic function and neural progenitors proliferation markers and improves neuropathology and motor coordination in Machado-Joseph disease models. Hum Mol Genet 2020; 28:3691-3703. [PMID: 31127937 DOI: 10.1093/hmg/ddz097] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 04/22/2019] [Accepted: 05/07/2019] [Indexed: 01/09/2023] Open
Abstract
Machado-Joseph disease or spinocerebellar ataxia type 3 is an inherited neurodegenerative disease associated with an abnormal glutamine over-repetition within the ataxin-3 protein. This mutant ataxin-3 protein affects several cellular pathways, leading to neuroinflammation and neuronal death in specific brain regions resulting in severe clinical manifestations. Presently, there is no therapy able to modify the disease progression. Nevertheless, anti-inflammatory pharmacological intervention has been associated with positive outcomes in other neurodegenerative diseases. Thus, the present work aimed at investigating whether ibuprofen treatment would alleviate Machado-Joseph disease. We found that ibuprofen-treated mouse models presented a significant reduction in the neuroinflammation markers, namely Il1b and TNFa mRNA and IKB-α protein phosphorylation levels. Moreover, these mice exhibited neuronal preservation, cerebellar atrophy reduction, smaller mutant ataxin-3 inclusions and motor performance improvement. Additionally, neural cultures of Machado-Joseph disease patients' induced pluripotent stem cells-derived neural stem cells incubated with ibuprofen showed increased levels of neural progenitors proliferation and synaptic markers such as MSI1, NOTCH1 and SYP. These findings were further confirmed in ibuprofen-treated mice that display increased neural progenitor numbers (Ki67 positive) in the subventricular zone. Furthermore, interestingly, ibuprofen treatment enhanced neurite total length and synaptic function of human neurons. Therefore, our results indicate that ibuprofen reduces neuroinflammation and induces neuroprotection, alleviating Machado-Joseph disease-associated neuropathology and motor impairments. Thus, our findings demonstrate that ibuprofen treatment has the potential to be used as a neuroprotective therapeutic approach in Machado-Joseph disease.
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Affiliation(s)
- Liliana S Mendonça
- Vectors and Gene Therapy Group, Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Clévio Nóbrega
- Vectors and Gene Therapy Group, Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Silvia Tavino
- Vectors and Gene Therapy Group, Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Maximilian Brinkhaus
- Vectors and Gene Therapy Group, Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Carlos Matos
- Vectors and Gene Therapy Group, Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Sandra Tomé
- Vectors and Gene Therapy Group, Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Ricardo Moreira
- Vectors and Gene Therapy Group, Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Daniel Henriques
- Vectors and Gene Therapy Group, Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Brian K Kaspar
- The Research Institute at Nationwide Children's Hospital, Ohio State University School of Medicine, Columbus, Ohio 43205, USA
| | - Luís Pereira de Almeida
- Vectors and Gene Therapy Group, Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal.,Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
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3
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Urbanovský P, Kotek J, Carniato F, Botta M, Hermann P. Lanthanide Complexes of DO3A-(Dibenzylamino)methylphosphinate: Effect of Protonation of the Dibenzylamino Group on the Water-Exchange Rate and the Binding of Human Serum Albumin. Inorg Chem 2019; 58:5196-5210. [PMID: 30942072 DOI: 10.1021/acs.inorgchem.9b00267] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Protonation of a distant, noncoordinated group of metal-based magnetic resonance imaging contrast agents potentially changes their relaxivity. The effect of a positive charge of the drug on the human serum albumin (HSA)-drug interaction remains poorly understood as well. Accordingly, a (dibenzylamino)methylphosphinate derivative of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) was efficiently synthesized using pyridine as the solvent for a Mannich-type reaction of tBu3DO3A, formaldehyde, and Bn2NCH2PO2H2 ethyl ester. The ligand protonation and metal ion (Gd3+, Cu2+, and Zn2+) stability constants were similar to those of the parent DOTA, whereas the basicity of the side-chain amino group of the complexes (log KA = 5.8) was 1 order of magnitude lower than that of the free ligand (log KA = 6.8). The presence of one bound water molecule in both deprotonated and protonated forms of the gadolinium(III) complex was deduced from the solid-state X-ray diffraction data [gadolinium(III) and dysprosium(III)], from the square antiprism/twisted square antiprism (SA/TSA) isomer ratio along the lanthanide series, from the fluorescence data of the europium(III) complex, and from the 17O NMR measurements of the dysprosium(III) and gadolinium(III) complexes. In the gadolinium(III) complex with the deprotonated amino group, water exchange is extremely fast (τM = 6 ns at 25 °C), most likely thanks to the high abundance of the TSA isomer and to the presence of a proximate protonable group, which assists the water-exchange process. The interaction between lanthanide(III) complexes and HSA is pH-dependent, and the deprotonated form is bound much more efficaciously (∼13% and ∼70% bound complex at pH = 4 and 7, respectively). The relaxivities of the complex and its HSA adduct are also pH-dependent, and the latter is approximately 2-3 times increased at pH = 4-7. The relaxivity for the supramolecular HSA-complex adduct ( r1b) is as high as 52 mM-1 s-1 at neutral pH (at 20 MHz and 25 °C). The findings of this study stand as a proof-of-concept, showing the ability to manipulate an albumin-drug interaction, and thus the blood pool residence time of the drug, by introducing a positive charge in a side-chain amino group.
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Affiliation(s)
- Peter Urbanovský
- Department of Inorganic Chemistry , Universita Karlova (Charles University) , Hlavova 2030 , 12843 Prague 2 , Czech Republic
| | - Jan Kotek
- Department of Inorganic Chemistry , Universita Karlova (Charles University) , Hlavova 2030 , 12843 Prague 2 , Czech Republic
| | - Fabio Carniato
- Dipartimento di Scienze e Innovazione Tecnologica , Università del Piemonte Orientale "A. Avogadro" , Viale T. Michel 11 , 15121 Alessandria , Italy
| | - Mauro Botta
- Dipartimento di Scienze e Innovazione Tecnologica , Università del Piemonte Orientale "A. Avogadro" , Viale T. Michel 11 , 15121 Alessandria , Italy
| | - Petr Hermann
- Department of Inorganic Chemistry , Universita Karlova (Charles University) , Hlavova 2030 , 12843 Prague 2 , Czech Republic
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Guglielmelli A, Rizzuti B, Guzzi R. Stereoselective and domain-specific effects of ibuprofen on the thermal stability of human serum albumin. Eur J Pharm Sci 2017; 112:122-131. [PMID: 29158196 DOI: 10.1016/j.ejps.2017.11.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 10/31/2017] [Accepted: 11/16/2017] [Indexed: 12/20/2022]
Abstract
Ibuprofen is one of the most used anti-inflammatory drugs, and it is transported in the blood by human serum albumin, a major plasmatic protein with a peculiar adaptability in the binding of several different ligands. We have characterized the interaction between albumin and ibuprofen, either in racemic mixture, or in the S(+) and R(-) enantiomeric forms, by using differential scanning calorimetry, attenuated total reflectance Fourier transform infrared spectroscopy, and molecular dynamics simulation. The results show that increasing concentrations of ibuprofen (up to sixfold drug/protein molar ratio) improve the protein resistance to thermal unfolding without altering the secondary structure. Deconvolution of the calorimetric thermal profiles at different albumin/ibuprofen molar ratios demonstrates a selective stability of the protein domains where the binding sites of the drug are localized. At the highest ibuprofen concentration, the melting temperature increased by about 10°C with respect to the drug-free protein, whereas the unfolding enthalpy maintains an almost constant value. Furthermore, the degree of protein stabilization depends upon the chirality of the drug, and the R(-) enantiomer is more effective compared to the S(+) form. The stability is supported by molecular dynamics simulations, showing that ibuprofen maintains a stable coordination in the most favorable binding sites, leading to a more compact protein structure at high temperature. The overall results attest that the binding of ibuprofen determines on albumin a stereoselective and domain-specific stabilization with a predominantly entropic character, contributing to clarify significant aspects of the molecular mechanism of protein/drug interaction.
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Affiliation(s)
- Alexa Guglielmelli
- Molecular Biophysics Laboratory, Department of Physics, University of Calabria, 87036 Rende, Italy
| | - Bruno Rizzuti
- CNR-NANOTEC, Licryl-UOS Cosenza and CEMIF.Cal, Department of Physics, University of Calabria, 87036 Rende, Italy
| | - Rita Guzzi
- Molecular Biophysics Laboratory, Department of Physics, University of Calabria, 87036 Rende, Italy.
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5
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Raoufinia R, Mota A, Keyhanvar N, Safari F, Shamekhi S, Abdolalizadeh J. Overview of Albumin and Its Purification Methods. Adv Pharm Bull 2016; 6:495-507. [PMID: 28101456 PMCID: PMC5241407 DOI: 10.15171/apb.2016.063] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/08/2016] [Accepted: 09/10/2016] [Indexed: 01/06/2023] Open
Abstract
As the most frequent plasma protein, albumin constitutes more than 50% of the serum proteins in healthy individuals. It has a key role in oncotic pressure maintenance and it is known as a versatile protein carrier for transportation of various endogenous and exogenous ligands. Reduced amounts of albumin in the body will lead to different kinds of diseases such as hypovolemia and hypoproteinemia. It also has various indications in shocks, burns, cardiopulmonary bypass, acute liver failure and etc. Further applications in research consist of cell culture supplement, drug delivery carrier and protein/drug stabilizer. So, the demand for albumin increased annually worldwide. Due to different applications of albumin, many efforts have been accomplished to achieve albumin during a long period of time. In this review, an overview of serum albumin and different purification methods are summarized.
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Affiliation(s)
- Ramin Raoufinia
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Clinical Biochemistry and Laboratory Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Mota
- Department of Clinical Biochemistry and Laboratory Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Neda Keyhanvar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Safari
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sara Shamekhi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jalal Abdolalizadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Paramedical faculty, Tabriz University of Medical Sciences, Tabriz, Iran
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6
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Eleta-Lopez A, Etxebarria J, Reichardt NC, Georgieva R, Bäumler H, Toca-Herrera JL. On the molecular interaction between albumin and ibuprofen: An AFM and QCM-D study. Colloids Surf B Biointerfaces 2015. [PMID: 26218522 DOI: 10.1016/j.colsurfb.2015.06.063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The adsorption of proteins on surfaces often results in a change of their structural behavior and consequently, a loss of bioactivity. One experimental method to study interactions on a molecular level is single molecular force spectroscopy that permits to measure forces down to the pico-newton range. In this work, the binding force between human serum albumin (HSA), covalently immobilized on glutaraldehyde modified gold substrates, and ibuprofen sodium salt was studied by means of single molecular force spectroscopy. First of all, a protocol was established to functionalize atomic force microscopy (AFM) tips with ibuprofen. The immobilization protocol was additionally tested by quartz crystal microbalance with dissipation (QCM-D) and contact angle measurements. AFM was used to characterize the adsorption of HSA on gold substrates, which lead to a packed monolayer of thickness slightly lower than the reported value in solution. Finally, single molecule spectroscopy results were used to characterize the binding force between albumin and ibuprofen and calculate the distance of the transition state (0.6 nm) and the dissociation rate constant (0.055 s(-1)). The results might indicate that part of the adsorbed protein still preserves its functionality upon adsorption.
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Affiliation(s)
- Aitziber Eleta-Lopez
- CIC nanoGUNE Consolider, Tolosa Hiribidea 20018 Donostia/San Sebastian, Spain; Biosurfaces Unit, CIC biomaGUNE, Miramon Pasealekua 182, 20009 Donostia/San Sebastian, Spain.
| | - Juan Etxebarria
- Biofunctional Nanomaterials Unit, CIC biomaGUNE, Miramon Pasealekua 182, 20009 Donostia/San Sebastian, Spain
| | - Niels-Christian Reichardt
- Biofunctional Nanomaterials Unit, CIC biomaGUNE, Miramon Pasealekua 182, 20009 Donostia/San Sebastian, Spain; CIBER-BBN, Miramon Pasealekua 182, 20009 Donostia/San Sebastian, Spain
| | - Radostina Georgieva
- Charité-Universitätsmedizin Berlin, Institute of Transfusion Medicine, Charitéplatz 1, 10117 Berlin, Germany; Department of Medical Physics, Biophysics and Radiology, Medical Faculty, Trakia University,, ul. Armeiska 11, 6000 Stara Zagora, Bulgaria
| | - Hans Bäumler
- Charité-Universitätsmedizin Berlin, Institute of Transfusion Medicine, Charitéplatz 1, 10117 Berlin, Germany
| | - José L Toca-Herrera
- Biosurfaces Unit, CIC biomaGUNE, Miramon Pasealekua 182, 20009 Donostia/San Sebastian, Spain; Institute for Biophysics, Department of Nanobiotechnology, University of Natural Resources and Life Sciences Vienna (BOKU), Muthgasse 11, A-1190 Vienna, Austria.
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7
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Meneghini C, Leboffe L, Bionducci M, Fanali G, Meli M, Colombo G, Fasano M, Ascenzi P, Mobilio S. The five-to-six-coordination transition of ferric human serum heme-albumin is allosterically-modulated by ibuprofen and warfarin: a combined XAS and MD study. PLoS One 2014; 9:e104231. [PMID: 25153171 PMCID: PMC4143227 DOI: 10.1371/journal.pone.0104231] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 07/08/2014] [Indexed: 12/20/2022] Open
Abstract
Human serum albumin (HSA) is involved physiologically in heme scavenging; in turn, heme-albumin (HSA-heme-Fe) displays globin-like properties. Here, the allosteric effect of ibuprofen and warfarin on the local atomic structure around the ferric heme-Fe (heme-Fe(III)) atom of HSA-heme-Fe (HSA-heme-Fe(III)) has been probed by Fe-K edge X-ray absorption spectroscopy (XAS). The quantitative analysis of the Fe-K edge extended X-ray absorption fine structure (EXAFS) signals and modeling of the near edge (XANES) spectral features demonstrated that warfarin and ibuprofen binding modify the local structure of the heme-Fe(III). Combined XAS data analysis and targeted molecular dynamics (MD) simulations provided atomic resolution insights of protein structural rearrangements required to accommodate the heme-Fe(III) upon ibuprofen and warfarin binding. In the absence of drugs, the heme-Fe(III) atom is penta-coordinated having distorted 4+1 configuration made by the nitrogen atoms of the porphyrin ring and the oxygen phenoxy atom of the Tyr161 residue. MD simulations show that ibuprofen and warfarin association to the secondary fatty acid (FA) binding site 2 (FA2) induces a reorientation of domain I of HSA-heme-Fe(III), this leads to the redirection of the His146 residue providing an additional bond to the heme-Fe(III) atom, providing the 5+1 configuration. The comparison of Fe-K edge XANES spectra calculated using MD structures with those obtained experimentally confirms the reliability of the proposed structural model. As a whole, combining XAS and MD simulations it has been possible to provide a reliable model of the heme-Fe(III) atom coordination state and to understand the complex allosteric transition occurring in HSA-heme-Fe(III) upon ibuprofen and warfarin binding.
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Affiliation(s)
| | - Loris Leboffe
- Department of Sciences, Roma Tre University, Roma, Italy
- National Institute of Biostructures and Biosystems, Roma, Italy
| | | | - Gabriella Fanali
- Biomedical Research Division, Department of Theoretical and Applied Sciences, and Center of Neuroscience, University of Insubria, Busto Arsizio (VA), Italy
| | - Massimiliano Meli
- Institute for Molecular Recognition Chemistry, National Research Council, Milano, Italy
| | - Giorgio Colombo
- Institute for Molecular Recognition Chemistry, National Research Council, Milano, Italy
| | - Mauro Fasano
- Biomedical Research Division, Department of Theoretical and Applied Sciences, and Center of Neuroscience, University of Insubria, Busto Arsizio (VA), Italy
| | - Paolo Ascenzi
- National Institute of Biostructures and Biosystems, Roma, Italy
- Interdepartmental Laboratory of Electron Microscopy, Roma Tre University, Roma, Italy
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8
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Del Giudice A, Leggio C, Balasco N, Galantini L, Pavel NV. Ibuprofen and Propofol Cobinding Effect on Human Serum Albumin Unfolding in Urea. J Phys Chem B 2014; 118:10043-51. [DOI: 10.1021/jp504280n] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Alessandra Del Giudice
- Dipartimento
di Chimica, Sapienza Università di Roma, P.O. Box 34-Roma 62, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Claudia Leggio
- Dipartimento
di Chimica, Sapienza Università di Roma, P.O. Box 34-Roma 62, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Nicole Balasco
- Dipartimento
di Chimica, Sapienza Università di Roma, P.O. Box 34-Roma 62, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Luciano Galantini
- Dipartimento
di Chimica, Sapienza Università di Roma, P.O. Box 34-Roma 62, Piazzale A. Moro 5, I-00185 Roma, Italy
| | - Nicolae V. Pavel
- Dipartimento
di Chimica, Sapienza Università di Roma, P.O. Box 34-Roma 62, Piazzale A. Moro 5, I-00185 Roma, Italy
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Neudert O, Raich HP, Mattea C, Stapf S, Münnemann K. An Alderman-Grant resonator for S-Band Dynamic Nuclear Polarization. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2014; 242:79-85. [PMID: 24607825 DOI: 10.1016/j.jmr.2014.02.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 01/31/2014] [Accepted: 02/01/2014] [Indexed: 06/03/2023]
Abstract
An Alderman-Grant resonator with resonance at 2GHz (S-Band) was simulated, developed and constructed for Dynamic Nuclear Polarization (DNP) experiments at 73mT. The resonator fits into magnet bores with a minimum diameter of 20mm and is compatible with standard 3mm NMR tubes. The compact resonator design achieves good separation of electric and magnetic fields and therefore can be used with comparatively large sample volumes with only small sample heating effects comparable to those obtained with optimized X- and W-Band DNP setups. The saturation efficiency and sample heating effects were investigated for Overhauser DNP experiments of aqueous solutions of TEMPOL radical, showing relative saturation better than 0.9 and sample heating not exceeding a few Kelvin even at high microwave power and long irradiation time. An application is demonstrated, combining the DNP setup with a commercial fast field cycling NMR relaxometer. Using this resonator design at low microwave frequencies can provide DNP polarization for a class of low-field and time-domain NMR experiments and therefore may enable new applications that benefit from increased sensitivity.
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Affiliation(s)
- Oliver Neudert
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.
| | - Hans-Peter Raich
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.
| | - Carlos Mattea
- Institute of Physics, Ilmenau University of Technology, D-98693 Ilmenau, Germany.
| | - Siegfried Stapf
- Institute of Physics, Ilmenau University of Technology, D-98693 Ilmenau, Germany.
| | - Kerstin Münnemann
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.
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10
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Evaluation of albumin structural modifications through cobalt-albumin binding (CAB) assay. J Pharm Biomed Anal 2013; 91:17-23. [PMID: 24434278 DOI: 10.1016/j.jpba.2013.12.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Revised: 12/03/2013] [Accepted: 12/06/2013] [Indexed: 11/23/2022]
Abstract
Human serum albumin (HSA) is the most abundant protein in the human body. HSA injections prepared by fractionating human blood have mainly covered the demand for albumin to treat hypoalbuminemia, the state of low concentration of albumin in blood. HSA in solution may exist in various forms such as monomers, oligomers, polymers, or as mixtures, and its conformational change and/or aggregation may occur easily. Considering these characteristics, there is a great chance of modification and polymer formation during the preparation processes of albumin products, especially injections. The albumin cobalt binding (ACB) test reported by Bar-Or et al. was originally designed to detect ischemia modified albumin (IMA), which contains the modified HSA N-terminal sequence by cleavage of the last two amino acids. In this study, we developed a cobalt albumin binding (CAB) assay to correct the flaws of the ACB test with improving the sensitivity and precision. The newly developed CAB assay easily detects albumin configuration alterations and may be able to be used in developing a quality control method for albumin and its pharmaceutical formulations including albumin injections.
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11
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Sen P, Khan MM, Equbal A, Ahmad E, Khan RH. At very low concentrations known chaotropes act as kosmotropes for the N and B isoforms of human serum albumin. Biochem Cell Biol 2013; 91:72-8. [DOI: 10.1139/bcb-2012-0035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Very few studies have been done to understand the effect of millimolar concentrations of chaotropes on protein structure. In our previous study we observed that the secondary and tertiary structure of human serum albumin (HSA) increases in the presence of 5 mmol/L urea. Micelle formation in amphoteric detergents increases in the presence of equivalent concentrations of urea. Here, we observed a significant increase in the secondary and tertiary structure of HSA. Interestingly, guanidine hydrochloride, another chaotropic agent, also shows a similar effect. Our results show electrostatic interaction may play a role in neutral to basic transition in HSA. This study further supports the claim that at millimolar concentrations the chaotropes may act as kosmotropes for proteins.
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Affiliation(s)
- Priyankar Sen
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
- P.G. Department of Biotechnology, Utkal University, Bhubaneswar 751004, India
| | - Mohd Moin Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Asif Equbal
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Ejaz Ahmad
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
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12
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Jana S, Dalapati S, Ghosh S, Guchhait N. Study of microheterogeneous environment of protein Human Serum Albumin by an extrinsic fluorescent reporter: A spectroscopic study in combination with Molecular Docking and Molecular Dynamics Simulation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2012; 112:48-58. [DOI: 10.1016/j.jphotobiol.2012.04.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 03/30/2012] [Accepted: 04/06/2012] [Indexed: 10/28/2022]
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13
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El-Ghaiesh S, Monshi MM, Whitaker P, Jenkins R, Meng X, Farrell J, Elsheikh A, Peckham D, French N, Pirmohamed M, Park BK, Naisbitt DJ. Characterization of the antigen specificity of T-cell clones from piperacillin-hypersensitive patients with cystic fibrosis. J Pharmacol Exp Ther 2012; 341:597-610. [PMID: 22371438 DOI: 10.1124/jpet.111.190900] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
β-Lactam antibiotics provide the cornerstone of treatment and reduce the rate of decline in lung function in patients with cystic fibrosis, but their use is limited by a high frequency of delayed-type allergic reactions. The objective of this study was to use cloned T-cells expressing a single T-cell receptor from five piperacillin-hypersensitive patients to characterize both the cellular pathophysiology of the reaction and antigen specificity to define the mechanism of activation of T-cells by piperacillin. More than 400 piperacillin-responsive CD4+, CD4+CD8+, or CD8+ T-cell clones were generated from lymphocyte transformation test and ELIspot-positive patients. The T-cell response (proliferation, T helper 2 cytokine secretion, and cytotoxicity) to piperacillin was concentration-dependent and highly specific. Enzyme-linked immunosorbent assay, gel electrophoresis, and mass spectrometry revealed that piperacillin bound exclusively to albumin in T-cell culture. Irreversible piperacillin binding at Lys 190, 195, 199, 432, and 541 on albumin and the stimulation of T-cells depended on incubation time. A synthetic piperacillin albumin conjugate stimulated T-cell receptors via a major histocompatibility complex- and processing-dependent pathway. Flucloxacillin competes for the same Lys residues on albumin as piperacillin, but the resulting conjugate does not stimulate T-cells, indicating that binding of the β-lactam hapten in peptide conjugates confers structural specificity on the activation of the T-cell receptors expressed on drug-specific clones. Collectively, these data describe the cellular processes that underlie the structural specificity of piperacillin antigen binding in hypersensitive patients with cystic fibrosis.
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Affiliation(s)
- Sabah El-Ghaiesh
- Medical Research Council Centre for Drug Safety Science, Department of Pharmacology, Sherrington Building, Ashton Street, University of Liverpool, Liverpool, L69 3GE, United Kingdom
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di Masi A, Gullotta F, Bolli A, Fanali G, Fasano M, Ascenzi P. Ibuprofen binding to secondary sites allosterically modulates the spectroscopic and catalytic properties of human serum heme-albumin. FEBS J 2011; 278:654-62. [DOI: 10.1111/j.1742-4658.2010.07986.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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15
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Ascenzi P, Bolli A, Gullotta F, Fanali G, Fasano M. Drug binding to Sudlow's site I impairs allosterically human serum heme-albumin-catalyzed peroxynitrite detoxification. IUBMB Life 2010; 62:776-80. [DOI: 10.1002/iub.381] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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16
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Saquib Q, Al-Khedhairy AA, Alarifi SA, Dwivedi S, Mustafa J, Musarrat J. Fungicide methyl thiophanate binding at sub-domain IIA of human serum albumin triggers conformational change and protein damage. Int J Biol Macromol 2010; 47:60-7. [DOI: 10.1016/j.ijbiomac.2010.03.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2010] [Revised: 03/06/2010] [Accepted: 03/26/2010] [Indexed: 10/19/2022]
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17
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Galantini L, Leggio C, Konarev PV, Pavel NV. Human serum albumin binding ibuprofen: A 3D description of the unfolding pathway in urea. Biophys Chem 2010; 147:111-22. [DOI: 10.1016/j.bpc.2010.01.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 01/08/2010] [Accepted: 01/10/2010] [Indexed: 11/28/2022]
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18
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Characterization of different conformations of bovine serum albumin and their propensity to aggregate in the presence of N-cetyl-N,N,N-trimethyl ammonium bromide. J Colloid Interface Sci 2010; 343:454-62. [DOI: 10.1016/j.jcis.2009.12.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Revised: 11/27/2009] [Accepted: 12/02/2009] [Indexed: 11/18/2022]
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19
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Varshney A, Sen P, Ahmad E, Rehan M, Subbarao N, Khan RH. Ligand binding strategies of human serum albumin: how can the cargo be utilized? Chirality 2010; 22:77-87. [PMID: 19319989 DOI: 10.1002/chir.20709] [Citation(s) in RCA: 242] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Human serum albumin (HSA), being the most abundant carrier protein in blood and a modern day clinical tool for drug delivery, attracts high attention among biologists. Hence, its unfolding/refolding strategies and exogenous/endogenous ligand binding preference are of immense use in therapeutics and clinical biochemistry. Among its fellow proteins albumin is known to carry almost every small molecule. Thus, it is a potential contender for being a molecular cargo/or nanovehicle for clinical, biophysical and industrial purposes. Nonetheless, its structure and function are largely regulated by various chemical and physical factors to accommodate HSA to its functional purpose. This multifunctional protein also possesses enzymatic properties which may be used to convert prodrugs to active therapeutics. This review aims to highlight current overview on the binding strategies of protein to various ligands that may be expected to lead to significant clinical applications.
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Affiliation(s)
- Ankita Varshney
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
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20
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Rezaei Behbehani G, Divsalar A, Saboury AA, Faridbod F, Ganjali MR. A Thermodynamic Study on the Binding of Human Serum Albumin with Lanthanum Ion. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.201090047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Baroni S, Pariani G, Fanali G, Longo D, Ascenzi P, Aime S, Fasano M. Thermodynamic analysis of hydration in human serum heme–albumin. Biochem Biophys Res Commun 2009; 385:385-9. [DOI: 10.1016/j.bbrc.2009.05.075] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2009] [Accepted: 05/15/2009] [Indexed: 10/20/2022]
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22
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Fanali G, Pariani G, Ascenzi P, Fasano M. Allosteric and binding properties of Asp1-Glu382 truncated recombinant human serum albumin - an optical and NMR spectroscopic investigation. FEBS J 2009; 276:2241-50. [DOI: 10.1111/j.1742-4658.2009.06952.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Fanali G, De Sanctis G, Gioia M, Coletta M, Ascenzi P, Fasano M. Reversible two-step unfolding of heme–human serum albumin: a 1H-NMR relaxometric and circular dichroism study. J Biol Inorg Chem 2008; 14:209-17. [DOI: 10.1007/s00775-008-0439-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2008] [Accepted: 09/29/2008] [Indexed: 11/29/2022]
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24
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Nicoletti FP, Howes BD, Fittipaldi M, Fanali G, Fasano M, Ascenzi P, Smulevich G. Ibuprofen Induces an Allosteric Conformational Transition in the Heme Complex of Human Serum Albumin with Significant Effects on Heme Ligation. J Am Chem Soc 2008; 130:11677-88. [DOI: 10.1021/ja800966t] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Francesco P. Nicoletti
- Dipartimento di Chimica and INSTM, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino (FI), Italy, Dipartimento di Biologia Strutturale e Funzionale, and Centro di Neuroscienze, Università dell’Insubria, Via Alberto da Giussano 12, I-21052 Busto Arsizio (VA), Italy, Centro Interdipartimentale di Microscopia Elettronica, Università Roma Tre, Via della Vasca Navale 79, I-00146 Roma, Italy, and Istituto Nazionale per le Malattie Infettive I.R.C.C.S. ‘Lazzaro Spallanzani’, Via Portuense
| | - Barry D. Howes
- Dipartimento di Chimica and INSTM, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino (FI), Italy, Dipartimento di Biologia Strutturale e Funzionale, and Centro di Neuroscienze, Università dell’Insubria, Via Alberto da Giussano 12, I-21052 Busto Arsizio (VA), Italy, Centro Interdipartimentale di Microscopia Elettronica, Università Roma Tre, Via della Vasca Navale 79, I-00146 Roma, Italy, and Istituto Nazionale per le Malattie Infettive I.R.C.C.S. ‘Lazzaro Spallanzani’, Via Portuense
| | - Maria Fittipaldi
- Dipartimento di Chimica and INSTM, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino (FI), Italy, Dipartimento di Biologia Strutturale e Funzionale, and Centro di Neuroscienze, Università dell’Insubria, Via Alberto da Giussano 12, I-21052 Busto Arsizio (VA), Italy, Centro Interdipartimentale di Microscopia Elettronica, Università Roma Tre, Via della Vasca Navale 79, I-00146 Roma, Italy, and Istituto Nazionale per le Malattie Infettive I.R.C.C.S. ‘Lazzaro Spallanzani’, Via Portuense
| | - Gabriella Fanali
- Dipartimento di Chimica and INSTM, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino (FI), Italy, Dipartimento di Biologia Strutturale e Funzionale, and Centro di Neuroscienze, Università dell’Insubria, Via Alberto da Giussano 12, I-21052 Busto Arsizio (VA), Italy, Centro Interdipartimentale di Microscopia Elettronica, Università Roma Tre, Via della Vasca Navale 79, I-00146 Roma, Italy, and Istituto Nazionale per le Malattie Infettive I.R.C.C.S. ‘Lazzaro Spallanzani’, Via Portuense
| | - Mauro Fasano
- Dipartimento di Chimica and INSTM, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino (FI), Italy, Dipartimento di Biologia Strutturale e Funzionale, and Centro di Neuroscienze, Università dell’Insubria, Via Alberto da Giussano 12, I-21052 Busto Arsizio (VA), Italy, Centro Interdipartimentale di Microscopia Elettronica, Università Roma Tre, Via della Vasca Navale 79, I-00146 Roma, Italy, and Istituto Nazionale per le Malattie Infettive I.R.C.C.S. ‘Lazzaro Spallanzani’, Via Portuense
| | - Paolo Ascenzi
- Dipartimento di Chimica and INSTM, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino (FI), Italy, Dipartimento di Biologia Strutturale e Funzionale, and Centro di Neuroscienze, Università dell’Insubria, Via Alberto da Giussano 12, I-21052 Busto Arsizio (VA), Italy, Centro Interdipartimentale di Microscopia Elettronica, Università Roma Tre, Via della Vasca Navale 79, I-00146 Roma, Italy, and Istituto Nazionale per le Malattie Infettive I.R.C.C.S. ‘Lazzaro Spallanzani’, Via Portuense
| | - Giulietta Smulevich
- Dipartimento di Chimica and INSTM, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino (FI), Italy, Dipartimento di Biologia Strutturale e Funzionale, and Centro di Neuroscienze, Università dell’Insubria, Via Alberto da Giussano 12, I-21052 Busto Arsizio (VA), Italy, Centro Interdipartimentale di Microscopia Elettronica, Università Roma Tre, Via della Vasca Navale 79, I-00146 Roma, Italy, and Istituto Nazionale per le Malattie Infettive I.R.C.C.S. ‘Lazzaro Spallanzani’, Via Portuense
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Abacavir and warfarin modulate allosterically kinetics of NO dissociation from ferrous nitrosylated human serum heme-albumin. Biochem Biophys Res Commun 2008; 369:686-91. [DOI: 10.1016/j.bbrc.2008.02.077] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2008] [Accepted: 02/18/2008] [Indexed: 11/18/2022]
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26
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Fanali G, Bocedi A, Ascenzi P, Fasano M. Modulation of heme and myristate binding to human serum albumin by anti-HIV drugs. An optical and NMR spectroscopic study. FEBS J 2007; 274:4491-502. [PMID: 17725715 DOI: 10.1111/j.1742-4658.2007.05978.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Human serum albumin (HSA) has an extraordinary ligand-binding capacity, and transports Fe(III)heme and medium- and long-chain fatty acids. In human immunodeficiency virus-infected patients the administered drugs bind to HSA and act as allosteric effectors. Here, the binding of Fe(III)heme to HSA in the presence of three representative anti-HIV drugs and myristate is investigated. Values of the dissociation equilibrium constant K(d) for Fe(III)heme binding to HSA were determined at different myristate concentrations, in the absence and presence of anti-HIV drugs. Nuclear magnetic relaxation dispersion profiles of HSA-Fe(III)heme were measured, at different myristate concentrations, in the absence and presence of anti-HIV drugs. Structural bases for anti-HIV drug binding to HSA are provided by automatic docking simulation. Abacavir and nevirapine bind to HSA with K(d) values of 1 x 10(-6) and 2 x 10(-6) M, respectively. Therefore, at concentrations used in therapy (in the 1-5 x 10(-6) M range) abacavir and nevirapine bind to HSA and increase the affinity of heme for HSA. In the presence of abacavir or nevirapine, the affinity is not lowered by myristate. FA7 should therefore be intended as a secondary binding site for abacavir and nevirapine. Binding of atazanavir is limited by the large size of the drug, although preferential binding may be envisaged to a site positively coupled with FA1 and FA2, and negatively coupled to FA7. As a whole, these results provide a foundation for the comprehension of the complex network of links modulating HSA-binding properties.
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Affiliation(s)
- Gabriella Fanali
- Dipartimento di Biologia Strutturale e Funzionale, and Centro di Neuroscienze, Università dell'Insubria, Busto Arsizio, Italy
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