1
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Ieda N, Takakura H, Maeta H, Ohira T, Tsuchiya K, Nakajima K, Ogawa M. Investigation of the substituent effect of indocyanine green derivatives for lymph imaging. Bioorg Med Chem 2024; 110:117824. [PMID: 38981218 DOI: 10.1016/j.bmc.2024.117824] [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: 04/22/2024] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 07/11/2024]
Abstract
Fluorescence lymph imaging with indocyanine green (ICG) is widely utilized as diagnostic tool for lymphatic diseases. While this technique offers numerous advantages, the kinetics of ICG at the injection site can pose challenges for a detailed diagnosis. In this study, we synthesized various ICG derivatives possessing cationic, anionic, or uncharged substituents and examined their photochemical properties, binding affinity to human serum albumin, as well as their correlation to pharmacokinetics in mice. The introduction of different substituents not only affected certain physiochemical properties, but also impacted the pharmacokinetics within the lymph nodes. Immunofluorescence imaging suggested that the extent of uptake of the ICG derivatives by phagocytic cells may affect the retention of the contrast ratios in the lymph nodes. These findings can provide new insights in the pharmacokinetics in lymphatic tissues, which could be useful for the development of novel fluorescent agents for lymph imaging.
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Affiliation(s)
- Naoya Ieda
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Hideo Takakura
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Hirotaka Maeta
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Takayuki Ohira
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Koki Tsuchiya
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan; WPI-ICReDD, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Kohei Nakajima
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Mikako Ogawa
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan; WPI-ICReDD, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan.
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2
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Bhat AR, Patel R. Exploring the binding mechanism and esterase-like activity of human serum albumin with levofloxacin and its choline based conjugates: A biophysical approach. Int J Biol Macromol 2024; 274:133011. [PMID: 38852730 DOI: 10.1016/j.ijbiomac.2024.133011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/05/2024] [Accepted: 06/06/2024] [Indexed: 06/11/2024]
Abstract
Human serum albumin (HSA) effectively binds to compounds having different molecular weight and thus facilitates their distribution in the living organisms. Thus, the binding interactions between a potential antibacterial drug (levofloxacin) and synthesized choline based levofloxacinate conjugates with HSA have been explored. The binding efficacy and mechanism were explored by utilizing different spectroscopic techniques; UV-Visible, steady state fluorescence, time resolved fluorescence and esterase-like activity. The interactions between the ligands and protein were electrostatic as well as hydrophobic in nature. The influence of different ligands having different alkyl chain shows quenching of the fluorescence emission of HSA. The spontaneous binding/quenching of HSA with ligands was static in nature, validated by steady state and time resolved fluorescence spectroscopy. Also, the impact of these ligands on the conformation of the native HSA structure was evaluated by using circular dichroism spectroscopy. In combination to the structural change study, the native protein functionality was observed (in terms of 'esterase-like activity') which has been found to be on lower side due to ligand binding. Further, we have performed the reverse study to check the impact of HSA on the fluorescent fluoroquinolone drug. The current study may prove helpful in elucidating the chemico-biological interactions which may prove useful in the pharmaceuticals, pharmacology, and different biochemistry fields.
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Affiliation(s)
- Ab Raouf Bhat
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India.
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3
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Zheng L, Zeng Z, Zhao Y, Liu X, Huai Z, Zhang X, Sun Z, Zhang JZH. HSADab: A comprehensive database for human serum albumin. Int J Biol Macromol 2024:134289. [PMID: 39084442 DOI: 10.1016/j.ijbiomac.2024.134289] [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: 06/03/2024] [Revised: 07/27/2024] [Accepted: 07/28/2024] [Indexed: 08/02/2024]
Abstract
Human Serum Albumin (HSA), the most abundant protein in human body fluids, plays a crucial role in the transportation, absorption, metabolism, distribution, and excretion of drugs, significantly influencing their therapeutic efficacy. Despite the importance of HSA as a drug target, the available data on its interactions with external agents, such as drug-like molecules and antibodies, are limited, posing challenges for molecular modeling investigations and the development of empirical scoring functions or machine learning predictors for this target. Furthermore, the reported entries in existing databases often contain major inconsistencies due to varied experiments and conditions, raising concerns about data quality. To address these issues, a pioneering database, HSADab, was established through an extensive review of >30,000 scientific publications published between 1987 and 2023. The database encompasses over 5000 affinity data points at multiple temperatures and >130 crystal structures, including both ligand-bound and apo forms. The current HSADab resource (www.hsadab.cn) serves as a reliable foundation for validating molecular simulation protocols, such as traditional virtual screening workflows using docking, end-point, and al-chemical free energy techniques. Additionally, it provides a valuable data source for the implementation of machine learning predictors, including plasma protein binding models and plasma protein-based drug design models.
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Affiliation(s)
- Lei Zheng
- NYU-ECNU Center for Computational Chemistry and Shanghai Frontiers Science Center of Artificial Intelligence and Deep Learning, NYU Shanghai, Shanghai 200062, China; Department of Chemistry, New York University, NY NY10003, USA.
| | - Zhaoyi Zeng
- NYU-ECNU Center for Computational Chemistry and Shanghai Frontiers Science Center of Artificial Intelligence and Deep Learning, NYU Shanghai, Shanghai 200062, China.
| | - Yao Zhao
- Department of Cardiovasology, Changhai Hospital, Naval Military Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Xiao Liu
- School of Mathematics, Physics and Statistics, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Zhe Huai
- Clickmab Biotechnology Research Center, Beijing 100094, China.
| | - Xudong Zhang
- Department of Chemistry, New York University, NY NY10003, USA.
| | - Zhaoxi Sun
- Changping Laboratory, Beijing 102206, China.
| | - John Z H Zhang
- NYU-ECNU Center for Computational Chemistry and Shanghai Frontiers Science Center of Artificial Intelligence and Deep Learning, NYU Shanghai, Shanghai 200062, China; Department of Chemistry, New York University, NY NY10003, USA; Faculty of Synthetic Biology and Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
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4
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Murathan Z, Zahirul Kabir M, Seng J, Mohamad SB, Uslu B. Multi-spectral and docking assessments to explore the combination of an antiviral drug, entecavir with bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 322:124792. [PMID: 38981287 DOI: 10.1016/j.saa.2024.124792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 06/25/2024] [Accepted: 07/05/2024] [Indexed: 07/11/2024]
Abstract
Molecular interaction of entecavir (ETV) with the transport protein, albumin from bovine serum (BSA) was explored through multispectral and molecular docking approaches. The BSA fluorescence was appreciably quenched upon ETV binding and the quenching nature was static. The ETV-BSA complexation and the static quenching process were further reiterated using UV-visible absorption spectra. The binding constant (Ka) values of the complex were found as 1.47 × 104-4.0 × 103 M-1, which depicting a modarate binding strength in the ETV-BSA complexation. The experimental outcomes verified that the stable complexation was primarily influenced by hydrophobic interactions, hydrogen bonds and van der Waals forces. Synchronous and 3-D fluorescence spectral results demonstrated that ETV had significant impact on the hydrophobicity and polarity of the molecular environment near Tyr and Trp residues. Competitive site-markers displacement (with warfarin and ketoprofen) results discovered the suitable binding locus of ETV at site I in BSA. The molecular docking assessments also revealed that ETV formed hydrogen bonds and hydrophobic interactions with BSA, predominantly binding to site I (sub-domain IIA) of BSA.
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Affiliation(s)
- Zeynep Murathan
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Turkey
| | - Md Zahirul Kabir
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Turkey.
| | - Jane Seng
- Faculty of Science, Bioinformatics Programme, Institute of Biological Sciences, Malaysia; Centre of Research for Computational Sciences and Informatics for Biology, Bioindustry, Environment, Agriculture and Healthcare, University of Malaya, Kuala Lumpur, Malaysia
| | - Saharuddin B Mohamad
- Faculty of Science, Bioinformatics Programme, Institute of Biological Sciences, Malaysia; Centre of Research for Computational Sciences and Informatics for Biology, Bioindustry, Environment, Agriculture and Healthcare, University of Malaya, Kuala Lumpur, Malaysia
| | - Bengi Uslu
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Turkey.
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5
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Jalan A, Sangeet S, Pradhan AK, Moyon NS. Exploring the interaction of a potent anti-cancer drug Selumetinib with bovine serum albumin: Spectral and computational attributes. J Mol Recognit 2024; 37:e3084. [PMID: 38596890 DOI: 10.1002/jmr.3084] [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: 08/09/2023] [Revised: 03/05/2024] [Accepted: 03/22/2024] [Indexed: 04/11/2024]
Abstract
The binding of drugs to plasma proteins determines its fate within the physiological system, hence profound understanding of its interaction within the bloodstream is important to understand its pharmacodynamics and pharmacokinetics and thereby its therapeutic potential. In this regard, our work delineates the mechanism of interaction of Selumetinib (SEL), a potent anti-cancer drug showing excellent effect against multiple solid tumors, with plasma protein bovine serum albumin (BSA), using methods such as absorption, steady-state fluorescence, time-resolved, fluorescence resonance energy transfer, Fourier transform infrared spectra (FTIR), circular dichroism (CD), synchronous and 3D-fluorescence, salt fluorescence, molecular docking and molecular dynamic simulations. The BSA fluorescence intensity was quenched with increasing concentration of SEL which indicates interactions of SEL with BSA. Stern-Volmer quenching analysis and lifetime studies indicate the involvement of dynamic quenching. However, some contributions from the static quenching mechanism could not be ruled out unambiguously. The association constant was found to be 5.34 × 105 M-1 and it has a single binding site. The Förster distance (r) indicated probable energy transmission between the BSA and SEL. The positive entropy changes and enthalpy change indicate that the main interacting forces are hydrophobic forces, also evidenced by the results of molecular modeling studies. Conformation change in protein framework was revealed from FTIR, synchronous and 3D fluorescence and CD studies. Competitive binding experiments as well as docking studies suggest that SEL attaches itself to site I (subdomain IIA) of BSA where warfarin binds. Molecular dynamic simulations indicate the stability of the SEL-BSA complex. The association energy between BSA and SEL is affected in the presence of different metals differently.
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Affiliation(s)
- Ankita Jalan
- Department of Chemistry, National Institute of Technology Silchar, Silchar, India
| | - Satyam Sangeet
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, India
| | - Amit Kumar Pradhan
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, India
| | - N Shaemningwar Moyon
- Department of Chemistry, National Institute of Technology Silchar, Silchar, India
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6
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Tiburtini GA, Bertarini L, Bersani M, Dragani TA, Rolando B, Binello A, Barge A, Spyrakis F. In silico prediction of the interaction of legacy and novel per- and poly-fluoroalkyl substances (PFAS) with selected human transporters and of their possible accumulation in the human body. Arch Toxicol 2024:10.1007/s00204-024-03797-0. [PMID: 38884658 DOI: 10.1007/s00204-024-03797-0] [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: 02/23/2024] [Accepted: 05/23/2024] [Indexed: 06/18/2024]
Abstract
Per- and poly-fluorinated compounds constitute a wide group of fluorocarbon chemicals with widespread industrial applications, ranging from non-stick coating in cookware to water surfactants, from fire-fighting foams to water-repellent coatings on textiles. Presently, over 12,000 PFAS are known worldwide. In recent years, extensive research has focused on investigating the biological effects of these molecules on various organisms, including humans. Here, we conducted in silico simulations to examine the potential binding of a representative selection of PFAS to various human proteins known to be involved in chemical transportation and accumulation processes. Specifically, we targeted human serum albumin (HSA), transthyretin (TTR), thyroxine binding protein (TBG), fatty acid binding proteins (FABPs), organic anion transporters (OATs), aiming to assess the potential for bioaccumulation. Molecular docking simulations were employed for this purpose, supplemented by molecular dynamics (MD) simulations to account for protein flexibility, when necessary. Our findings indicate that so-called "legacy PFAS" such as PFOA or PFOS exhibit a higher propensity for interaction with the analysed human protein targets compared to newly formulated PFAS, characterised by higher branching and hydrophilicity, and possibly a higher accumulation in the human body.
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Affiliation(s)
- G A Tiburtini
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - L Bertarini
- Department of Drug Science and Technology, University of Turin, Turin, Italy
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - M Bersani
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | | | - B Rolando
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - A Binello
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - A Barge
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - F Spyrakis
- Department of Drug Science and Technology, University of Turin, Turin, Italy.
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7
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Tamarit L, El Ouardi M, Lence E, Andreu I, González-Bello C, Miranda MA, Vayá I. Modulation of the photobehavior of gefitinib and its phenolic metabolites by human transport proteins. Front Pharmacol 2024; 15:1387057. [PMID: 38818381 PMCID: PMC11137198 DOI: 10.3389/fphar.2024.1387057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 05/02/2024] [Indexed: 06/01/2024] Open
Abstract
The photobiological damage that certain drugs or their metabolites can photosensitize in proteins is generally associated with the nature of the excited species that are generated upon interaction with UVA light. In this regard, the photoinduced damage of the anticancer drug gefitinib (GFT) and its two main photoactive metabolites GFT-M1 and GFT-M2 in cellular milieu was recently investigated. With this background, the photophysical properties of both the drug and its metabolites have now been studied in the presence of the two main transport proteins of human plasma, i.e., serum albumin (HSA) and α1-acid glycoprotein (HAG) upon UVA light excitation. In general, the observed photobehavior was strongly affected by the confined environment provided by the protein. Thus, GFT-M1 (which exhibits the highest phototoxicity) showed the highest fluorescence yield arising from long-lived HSA-bound phenolate-like excited species. Conversely, locally excited (LE) states were formed within HAG, resulting in lower fluorescence yields. The reserve was true for GFT-M2, which despite being also a phenol, led mainly to formation of LE states within HSA, and phenolate-like species (with a minor contribution of LE) inside HAG. Finally, the parent drug GFT, which is known to form LE states within HSA, exhibited a parallel behavior in the two proteins. In addition, determination of the association constants by both absorption and emission spectroscopy revealed that the two metabolites bind stronger to HSA than the parent drug, whereas smaller differences were observed for HAG. This was further confirmed by studying the competing interactions between GFT or its metabolites with the two proteins using fluorescence measurements. These above experimental findings were satisfactorily correlated with the results obtained by means of molecular dynamics (MD) simulations, which revealed the high affinity binding sites, the strength of interactions and the involved amino acid residues. In general, the differences observed in the photobehavior of the drug and its two photoactive metabolites in protein media are consistent with their relative photosensitizing potentials.
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Affiliation(s)
- Lorena Tamarit
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Valencia, Spain
- Unidad Mixta de Investigación UPV-IISLaFe, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Meryem El Ouardi
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Valencia, Spain
- Unidad Mixta de Investigación UPV-IISLaFe, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Emilio Lence
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Inmaculada Andreu
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Valencia, Spain
- Unidad Mixta de Investigación UPV-IISLaFe, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Concepcion González-Bello
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Miguel A. Miranda
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Valencia, Spain
- Unidad Mixta de Investigación UPV-IISLaFe, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Ignacio Vayá
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Valencia, Spain
- Unidad Mixta de Investigación UPV-IISLaFe, Hospital Universitari i Politècnic La Fe, Valencia, Spain
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8
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Zhang H, He Y, Zhang Y, Pan J, Guo T, Huang H, Dai M, Shang J, Gong G, Guo J. Direct Assembly of Bioactive Nanoparticles Constructed from Polyphenol-Nanoengineered Albumin. Biomacromolecules 2024; 25:2852-2862. [PMID: 38574372 DOI: 10.1021/acs.biomac.4c00010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Albumin nanoparticles are widely used in biomedicine due to their safety, low immunogenicity, and prolonged circulation. However, incorporating therapeutic molecules into these carriers faces challenges due to limited binding sites, restricting drug conjugation efficiency. We introduce a universal nanocarrier platform (X-UNP) using polyphenol-based engineering to incorporate phenolic moieties into albumin nanoparticles. Integration of catechol or galloyl groups significantly enhances drug binding and broadens the drug conjugation possibilities. Our study presents a library of X-UNP nanoparticles with improved drug-loading efficiency, achieving up to 96% across 10 clinically used drugs, surpassing conventional methods. Notably, ibuprofen-UNP nanoparticles exhibit a 5-fold increase in half-life compared with free ibuprofen, enhancing in vivo analgesic and anti-inflammatory effectiveness. This research establishes a versatile platform for protein-based nanosized materials accommodating various therapeutic agents in biotechnological applications.
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Affiliation(s)
- Haojie Zhang
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yunxiang He
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yajing Zhang
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, Sichuan 610065, China
| | - Jiezhou Pan
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, Sichuan 610065, China
| | - Tingxu Guo
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, Sichuan 610065, China
| | - Huijun Huang
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, Sichuan 610065, China
| | - Mengyuan Dai
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, Sichuan 610065, China
| | - Jiaojiao Shang
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, Sichuan 610065, China
| | - Guidong Gong
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, Sichuan 610065, China
| | - Junling Guo
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, Sichuan 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu Sichuan 610065, China
- Bioproducts Institute, Department of Chemical and Biological Engineering, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada
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9
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Gupta R, Paul K. Investigating the Serum Albumin Binding Behavior of Naphthalimide Based Fluorophore Conjugates: Spectroscopic and Molecular Docking Approach. ChemMedChem 2024:e202400114. [PMID: 38676621 DOI: 10.1002/cmdc.202400114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 04/29/2024]
Abstract
In the present study, naphthalimide-pyrazole-benzothiazole based fluorescent analogs were synthesized by substituting different primary and secondary amines on the naphthalimide nucleus and were evaluated for their sensitivity and selectivity towards serum albumin. Among various synthesized analogues compound 25 showed the most significant change with serum albumin and was further studied for selective detection and mode of interaction with serum albumin. Here, we compared the binding interaction of fluorescent probe 25 for variation/detection of two 76 % structurally resembling proteins HSA and BSA, by spectroscopic experiments. The compound shows more selectivity for HSA and BSA with a higher binding constant and evident visible change in the emission spectra of two serum albumins among different bioanalytes. The mode of interaction of 25 with human serum albumin and bovine serum albumin was investigated by FT-IR, circular dichroism, and DLS techniques to find out the change in the microenvironment and variation in the structure of serum albumin proteins. Higher binding affinity and specific selectivity of 25 with a limit of detection of 0.69 μM and 1.4 μM towards HSA and BSA compared to other bioanalytes make it a significant fluorescent probe for quantitatively detecting serum albumins at the very early stage of many fatal diseases.
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Affiliation(s)
- Rohini Gupta
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India
| | - Kamaldeep Paul
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India
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10
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Ohanyan N, Abelyan N, Manukyan A, Hayrapetyan V, Chailyan S, Tiratsuyan S, Danielyan K. Tannin-albumin particles as stable carriers of medicines. Nanomedicine (Lond) 2024; 19:689-708. [PMID: 38348681 DOI: 10.2217/nnm-2023-0275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2024] Open
Abstract
Background: The effectiveness of a drug is dependent on its accumulation at the site of therapeutic action, as well as its time in circulation. The aim of the research was the creation of stable albumin/tannin (punicalagin, punicalin) particles, which might serve for the delivery of medicines. Methods: Numerous chromatographic and analytical methods, docking analyses and in vivo testing were applied and used. Results: Stable tannin-albumin/medicine particles with a diameter of ∼100 nm were obtained. The results of in vivo experiments proved that tannin-albumin particles are more stable than albumin particles. Conclusion: Based on the experiments and docking analyses, these stable particles can carry an extended number of medicines, with diverse chemical structures.
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Affiliation(s)
- Nelli Ohanyan
- Institute of Biochemistry named after H Buniatian, NAS RA, Yerevan 0014, Armenia
| | | | - Arpi Manukyan
- Institute of Biochemistry named after H Buniatian, NAS RA, Yerevan 0014, Armenia
| | - Vardan Hayrapetyan
- Institute of Chemical Physics named after A.B. Nalbandyan, NAS RA, Yerevan 0014, Armenia
| | - Samvel Chailyan
- Institute of Biochemistry named after H Buniatian, NAS RA, Yerevan 0014, Armenia
| | | | - Kristine Danielyan
- Institute of Biochemistry named after H Buniatian, NAS RA, Yerevan 0014, Armenia
- Pharmacy Department, Eurasia International University, Yerevan 0014, Armenia
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11
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Rehman F, Abubakar M, Ridzwan NFW, Mohamad SB, Abd Halim AA, Tayyab S. Deciphering the binding mode and structural perturbations in floxuridine-human serum albumin complexation with spectroscopic, microscopic, and computational techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123641. [PMID: 38061108 DOI: 10.1016/j.saa.2023.123641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/29/2023] [Accepted: 11/10/2023] [Indexed: 01/13/2024]
Abstract
The binding mode of antineoplastic antimetabolite, floxuridine (FUDR), with human serum albumin (HSA), the leading carrier in blood circulation, was ascertained using multi-spectroscopic, microscopic, and computational techniques. A static fluorescence quenching was established due to decreased Ksv values with rising temperatures, suggesting FUDR-HSA complexation. UV-vis absorption spectral results also supported this conclusion. The binding constant, Ka values, were found within 9.7-7.9 × 103 M-1 at 290, 300, and 310 K, demonstrating a moderate binding affinity for the FUDR-HSA system. Thermodynamic data (ΔS = +46.35 J.mol-1.K-1 and ΔH = -8.77 kJ.mol-1) predicted the nature of stabilizing forces (hydrogen-bonds, hydrophobic, and van der Waals interactions) for the FUDR-HSA complex. Circular dichroism spectra displayed a minor disruption in the protein's 2° and 3° structures. At the same time, atomic force microscopy images proved variations in the FUDR-HSA surface morphology, confirming its complex formation. The protein's microenvironment around Trp/Tyr residues was also modified, as judged by 3-D fluorescence spectra. FUDR-bound HSA showed better resistance against thermal stress. As disclosed from ligand displacement studies, the FUDR binding site was placed in subdomain IIA (Site I). Further, the molecular docking analysis corroborated the competing displacement studies. Molecular dynamics evaluations revealed that the complex achieved equilibrium during simulations, confirming the FUDR-HSA complex's stability.
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Affiliation(s)
- Fazal Rehman
- Biochemistry Program, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Malaysia
| | - Mujaheed Abubakar
- Biochemistry Program, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Malaysia
| | - Nor Farrah Wahidah Ridzwan
- Bioinformatics Program, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Malaysia
| | - Saharuddin B Mohamad
- Bioinformatics Program, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Malaysia.
| | - Adyani Azizah Abd Halim
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, Universiti Malaya, Malaysia
| | - Saad Tayyab
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur, Malaysia.
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Sánchez-Ospina D, Mas-Fontao S, Gracia-Iguacel C, Avello A, González de Rivera M, Mujika-Marticorena M, Gonzalez-Parra E. Displacing the Burden: A Review of Protein-Bound Uremic Toxin Clearance Strategies in Chronic Kidney Disease. J Clin Med 2024; 13:1428. [PMID: 38592263 PMCID: PMC10934686 DOI: 10.3390/jcm13051428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/19/2024] [Accepted: 02/28/2024] [Indexed: 04/10/2024] Open
Abstract
Uremic toxins (UTs), particularly protein-bound uremic toxins (PBUTs), accumulate in chronic kidney disease (CKD) patients, causing significant health complications like uremic syndrome, cardiovascular disease, and immune dysfunction. The binding of PBUTs to plasma proteins such as albumin presents a formidable challenge for clearance, as conventional dialysis is often insufficient. With advancements in the classification and understanding of UTs, spearheaded by the European Uremic Toxins (EUTox) working group, over 120 molecules have been identified, prompting the development of alternative therapeutic strategies. Innovations such as online hemodiafiltration aim to enhance the removal process, while novel adsorptive therapies offer a means to address the high affinity of PBUTs to plasma proteins. Furthermore, the exploration of molecular displacers, designed to increase the free fraction of PBUTs, represents a cutting-edge approach to facilitate their dialytic clearance. Despite these advancements, the clinical application of displacers requires more research to confirm their efficacy and safety. The pursuit of such innovative treatments is crucial for improving the management of uremic toxicity and the overall prognosis of CKD patients, emphasizing the need for ongoing research and clinical trials.
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Affiliation(s)
- Didier Sánchez-Ospina
- Servicio Análisis Clínicos, Hospital Universitario de Burgos, 09006 Burgos, Spain; (D.S.-O.); (M.M.-M.)
| | - Sebastián Mas-Fontao
- IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain;
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain
- Faculty of Medicine and Biomedicine, Universidad Alfonso X el Sabio (UAX), 28037 Madrid, Spain
| | - Carolina Gracia-Iguacel
- Department of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz, Univerdad Autonoma de madrid, 28049 Madrid, Spain; (C.G.-I.); (A.A.); (M.G.d.R.)
| | - Alejandro Avello
- Department of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz, Univerdad Autonoma de madrid, 28049 Madrid, Spain; (C.G.-I.); (A.A.); (M.G.d.R.)
| | - Marina González de Rivera
- Department of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz, Univerdad Autonoma de madrid, 28049 Madrid, Spain; (C.G.-I.); (A.A.); (M.G.d.R.)
| | | | - Emilio Gonzalez-Parra
- IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain;
- Department of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz, Univerdad Autonoma de madrid, 28049 Madrid, Spain; (C.G.-I.); (A.A.); (M.G.d.R.)
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Abubakar M, Mohamad SB, Abd Halim AA, Tayyab S. Unveiling the molecular interaction of hepatitis B virus inhibitor, entecavir with human serum albumin through computational, microscopic and spectroscopic approaches. J Biomol Struct Dyn 2024:1-14. [PMID: 38315445 DOI: 10.1080/07391102.2024.2311331] [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: 09/11/2023] [Accepted: 01/23/2024] [Indexed: 02/07/2024]
Abstract
Molecular docking, molecular dynamics (MD) simulation, atomic force microscopy (AFM) and multi-spectroscopic techniques were selected to unveil the molecular association between the hepatitis B virus (HBV) inhibitor, entecavir (ETR), and the major blood plasma transporter, human serum albumin (HSA). The entire docking and simulation analyses recognized ETR binding to subdomain IIA (Site I) of HSA through hydrogen bonds, hydrophobic and van der Waals forces while maintaining the complex's stability throughout the 100 ns. A gradual lessening in the Stern-Volmer quenching constant (K sv ) with rising temperatures registered ETR-induced quenching of HBV fluorescence as static quenching, thus advising complexation between ETR and HSA. The further advocation of this conclusion was seen from a larger value of the biomolecular quenching rate constant ((kq ) > 1010 M-1s-1), changes in the spectra (UV-Vis absorption) of HSA following ETR inclusion and ETR-induced swelling of HSA in the AFM results. The ETR appeared to bind to HSA with moderate affinity (K a = 1.87 - 1.19 × 10 4 M-1) at 290, 300 and 310 K. Significant alterations in the protein's secondary and tertiary structures, including changes in the protein's Tyr/Trp microenvironment, were also detected by circular dichroism and three-dimensional fluorescence spectra when the protein was bound to ETR. The findings of the drug displacement study backed the docking results of Site I as ETR's preferred binding site in HSA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mujaheed Abubakar
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Saharuddin B Mohamad
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Adyani Azizah Abd Halim
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Saad Tayyab
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur, Malaysia
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14
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Jalan A, Moyon NS. Molecular interactions and binding dynamics of Alpelisib with serum albumins: insights from multi-spectroscopic techniques and molecular docking. J Biomol Struct Dyn 2024; 42:2127-2143. [PMID: 37098825 DOI: 10.1080/07391102.2023.2203256] [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: 11/24/2022] [Accepted: 04/10/2023] [Indexed: 04/27/2023]
Abstract
Alpelisib (ALP) is a potent anti-cancer drug showing promising activity against advanced breast cancers. Hence, profound understanding of its binding dynamics within the physiological system is vital. Herein, we have investigated interaction of ALP with human serum albumin (HSA) and bovine serum albumin (BSA) using spectroscopic techniques like absorption, fluorescence, time-resolved, synchronous and 3D-fluorescence, FRET, FT-IR, CD, and molecular docking studies. The intrinsic fluorescence of both BSA and HSA quenched significantly by ALP with an appreciable red shift in its emission maxima. Stern-Volmer analysis showed increase in Ksv with temperature indicating involvement of dynamic quenching process. This was further validated by no significant change in absorption spectrum of BSA and HSA (at 280 nm) upon ALP interaction, and by results of fluorescence time-resolved lifetime studies. ALP exhibited moderately strong binding affinity with BSA (of the order 106 M-1) and HSA (of the order 105 M-1), and the major forces accountable for stabilizing the interactions are hydrophobic forces. Competitive drug binding experiments and molecular docking suggested that ALP binds to site I in subdomain IIA of BSA and HSA. The Förster distance r was found to be less than 8 nm and 0.5 Ro < r < 1.5 Ro which suggests possible energy transfer between donors BSA/HSA and acceptor ALP. Synchronous and 3D-fluoresecnce, FT-IR and CD studies indicated that ALP induces conformational changes of BSA and HSA upon interaction.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Ankita Jalan
- Department of Chemistry, National Institute of Technology Silchar, Cachar, Assam, India
| | - N Shaemningwar Moyon
- Department of Chemistry, National Institute of Technology Silchar, Cachar, Assam, India
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15
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Liu S, Zhao Q, Wang Z, Zhao B, Zhang X. Albumin‑bilirubin grade is an independent prognostic factor for small lung cell cancer. Mol Clin Oncol 2024; 20:12. [PMID: 38213660 PMCID: PMC10777464 DOI: 10.3892/mco.2023.2710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 11/13/2023] [Indexed: 01/13/2024] Open
Abstract
Albumin-bilirubin (ALBI) grade was first described in 2015 as an indicator of liver dysfunction in patients with hepatocellular carcinoma. ALBI grade has been reported to have prognostic value in several malignancies including non-small cell lung cancer (NSCLC). The present study aimed to explore the prognostic impact of ALBI grade in patients with small cell lung cancer (SCLC). It retrospectively analyzed 135 patients with SCLC treated at Hebei General Hospital between April 2015 and August 2021. Patients were divided into two groups according to the cutoff point of ALBI grade determined by the receiver operating characteristic (ROC) curve: Group 1 with pre-treatment ALBI grade ≤-2.55 for an improved hepatic reserve and group 2 with ALBI grade >-2.55. Kaplan-Meier and Cox regression analysis were performed to assess the potential prognostic factors associated with progression free survival (PFS) and overall survival (OS). Propensity score matching (PSM) was applied to eliminate the influence of confounding factors. PFS and OS (P<0.001) were significantly improved in group 1 compared with in group 2. Multivariate analysis revealed that sex (P=0.024), surgery (P=0.050), lactate dehydrogenase (LDH; P=0.038), chemotherapy (P=0.038) and ALBI grade (P=0.028) are independent risk factors for PFS and that surgery (P=0.013), LDH (P=0.039), chemotherapy (P=0.009) and ALBI grade (P=0.013) are independent risk factors for OS. After PSM, ALBI grade is an independent prognostic factor of PFS (P=0.039) and OS (P=0.007). It was concluded that ALBI grade was an independent prognostic factor in SCLC.
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Affiliation(s)
- Shicheng Liu
- Department of Thoracic Surgery, Hebei General Hospital, Shijiazhuang, Hebei 050000, P.R. China
| | - Qingtao Zhao
- Department of Thoracic Surgery, Hebei General Hospital, Shijiazhuang, Hebei 050000, P.R. China
| | - Zengming Wang
- Department of Thoracic Surgery, Hebei General Hospital, Shijiazhuang, Hebei 050000, P.R. China
- Graduate School, Hebei North University, Zhangjiakou, Hebei 075000, P.R. China
| | - Bin Zhao
- Department of Thoracic Surgery, Hebei General Hospital, Shijiazhuang, Hebei 050000, P.R. China
- Graduate School, Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Xiaopeng Zhang
- Department of Thoracic Surgery, Hebei General Hospital, Shijiazhuang, Hebei 050000, P.R. China
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16
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Minaychev VV, Teterina AY, Smirnova PV, Menshikh KA, Senotov AS, Kobyakova MI, Smirnov IV, Pyatina KV, Krasnov KS, Fadeev RS, Komlev VS, Fadeeva IS. Composite Remineralization of Bone-Collagen Matrices by Low-Temperature Ceramics and Serum Albumin: A New Approach to the Creation of Highly Effective Osteoplastic Materials. J Funct Biomater 2024; 15:27. [PMID: 38391880 PMCID: PMC10889756 DOI: 10.3390/jfb15020027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 02/24/2024] Open
Abstract
This study examined the effectiveness of coating demineralized bone matrix (DBM) with amorphous calcium phosphate (DBM + CaP), as well as a composite of DBM, calcium phosphate, and serum albumin (DBM + CaP + BSA). The intact structure of DBM promotes the transformation of amorphous calcium phosphate (CaP) into dicalcium phosphate dihydrate (DCPD) with a characteristic plate shape and particle size of 5-35 µm. The inclusion of BSA in the coating resulted in a better and more uniform distribution of CaP on the surface of DBM trabeculae. MG63 cells showed that both the obtained forms of CaP and its complex with BSA did not exhibit cytotoxicity up to a concentration of 10 mg/mL in vitro. Ectopic (subcutaneous) implantation in rats revealed pronounced biocompatibility, as well as strong osteoconductive, osteoinductive, and osteogenic effects for both DBM + CaP and DBM + CaP + BSA, but more pronounced effects for DBM + CaP + BSA. In addition, for the DBM + CaP + BSA samples, there was a pronounced full physiological intrafibrillar biomineralization and proangiogenic effect with the formation of bone-morrow-like niches, accompanied by pronounced processes of intramedullary hematopoiesis, indicating a powerful osteogenic effect of this composite.
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Affiliation(s)
- Vladislav V Minaychev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
| | - Anastasia Yu Teterina
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
| | - Polina V Smirnova
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
| | - Ksenia A Menshikh
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
- Center for Translational Research on Autoimmune and Allergic Disease-CAAD, Department of Health Sciences, Università del Piemonte Orientale, 28100 Novara, Italy
| | - Anatoliy S Senotov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Margarita I Kobyakova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
- Research Institute of Clinical and Experimental Lymphology-Branch of the Institute of Cytology and Genetics Siberian Branch of Russian Academy of Sciences, 630060 Novosibirsk, Russia
| | - Igor V Smirnov
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
| | - Kira V Pyatina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Kirill S Krasnov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Roman S Fadeev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Vladimir S Komlev
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
| | - Irina S Fadeeva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
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17
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Wang L, Wang T, Wu G, Tian D. An HDBB-based fluorescent probe for the sensitive detection of human serum albumin. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:427-433. [PMID: 38165671 DOI: 10.1039/d3ay01733h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
The detection of human serum albumin (HSA) in bodily fluids is of great significance in the biomedical area because HSA in bodily fluids is commonly used as a biomarker for the early diagnosis of diseases. To detect HSA, we employed HDBB, 4,4'-(hydrazine-1,2-diylidene bis(methanylylidene)) bis(3-hydroxybenzoic acid), as a fluorescent probe with a large Stokes shift. HDBB had obvious excited state intramolecular proton transfer (ESIPT) and aggregation-induced emission (AIE) features. We elucidated the ESIPT characteristics of HDBB through the DFT approach. We also performed a molecular docking simulation between HDBB and HSA, showing that HDBB primarily bonded to HSA via hydrophobic force and hydrogen bonds. The FL intensities of HDBB with HSA concentrations had a linear range of 0.01-0.2 mg mL-1 (R2 = 0.9995), and the LOD was 1.104 μg mL-1. We also used the probe to detect HSA in urine, with spiked recoveries of 98.10-105.33%. Given its high selectivity and feasible synthesis, HDBB has potential applications in detecting HSA in real biological systems.
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Affiliation(s)
- Liwen Wang
- Hubei Key Laboratory of Biological Resources Protection and Utilization, School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi 445000, PR China.
| | - Tengfei Wang
- Hubei Key Laboratory of Biological Resources Protection and Utilization, School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi 445000, PR China.
| | - Guang Wu
- Hubei Key Laboratory of Biological Resources Protection and Utilization, School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi 445000, PR China.
| | - Dating Tian
- Hubei Key Laboratory of Biological Resources Protection and Utilization, School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi 445000, PR China.
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Bao J, Ren H, Han J, Yang X, Li Y, Jin J. Levels, tissue distribution and isomer stereoselectivity of Dechlorane Plus in humans: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166156. [PMID: 37572901 DOI: 10.1016/j.scitotenv.2023.166156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/14/2023]
Abstract
Exposure of human tissues to Dechlorane Plus (DP) has raised public concern because of the multiple health threats it may pose to humans. Therefore, it is important to summarize the main findings of previous studies on DP in human tissues and to provide potential guidance for future studies. In this paper, DP levels in different populations and human tissues worldwide since 2009 were systematically reviewed. DP levels in human tissues of workers in e-waste dismantling sites in Guangdong Province, China (median 190 ng·g-1 lw in serum) and DP manufacturing plants in Jiangsu Province, China (mean 857 ng·g-1 lw in whole-blood) are the highest reported worldwide. DP levels in tissues of the general population in recent studies are close to those of residents near e-waste dismantling sites, which should be of concern. DP levels in different human tissues were found to be positively correlated with a pattern of blood > breast milk > adipose tissue. The distribution of DP in different human tissues is mainly lipid-driven and may also be influenced by the interaction of DP with proteins such as human serum albumin. Most of the past studies determined the isomer stereoselectivity of DP in human tissues only by comparing the composition of DP in commercial DP products and human tissues, which lacks evidence of mechanism. Recently, a significantly different affinity of DP isomers for proteins was found, which seems to confirm the isomer selectivity of DP in human tissues. We simulated the binding of DP to human serum albumin and DP to thyroid hormone receptor β by molecular docking and found differences in the binding behavior of syn-DP and anti-DP to the selected proteins. Molecular docking seems to be a feasible approach for future studies to predict and reveal the mechanisms of DP behavior and health effects in human tissues.
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Affiliation(s)
- Junsong Bao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, 19 Xinjiekouwai Street, Haidian District, Beijing 100875, China
| | - Hongmin Ren
- Department of Chemical Engineering, Hebei Petroleum University of Technology, 2 Xueyuanlu Street, Shuangqiao District, Chengde 067000, China
| | - Jiali Han
- College of Life and Environmental Sciences, Minzu University of China, 27 Zhongguancun South Street, Haidian District, Beijing 100081, China
| | - Xinrui Yang
- Hainan Ecological Environmental Monitoring Center, 98 Baiju Avenue, Haikou 571126, China
| | - Yingxia Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, 19 Xinjiekouwai Street, Haidian District, Beijing 100875, China.
| | - Jun Jin
- College of Life and Environmental Sciences, Minzu University of China, 27 Zhongguancun South Street, Haidian District, Beijing 100081, China.
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Ashraf S, Qaiser H, Tariq S, Khalid A, Makeen HA, Alhazmi HA, Ul-Haq Z. Unraveling the versatility of human serum albumin - A comprehensive review of its biological significance and therapeutic potential. Curr Res Struct Biol 2023; 6:100114. [PMID: 38111902 PMCID: PMC10726258 DOI: 10.1016/j.crstbi.2023.100114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 12/20/2023] Open
Abstract
Human serum albumin (HSA) is a multi-domain macromolecule with diverse ligand binding capability because of its ability to allow allosteric modulation despite being a monomeric protein. Physiologically, HSA act as the primary carrier for various exogenous and endogenous compounds and fatty acids, and alter the pharmacokinetic properties of several drugs. It has antioxidant properties and is utilized therapeutically to improve the drug delivery of pharmacological agents for the treatment of several disorders. The flexibility of albumin in holding various types of drugs coupled with a variety of modifications makes this protein a versatile drug carrier with incalculable potential in therapeutics. This review provides a brief outline of the different structural properties of HSA, and its various binding sites, moreover, an overview of the genetic, biomedical, and allosteric modulation of drugs and drug delivery aspects of HSA is also included, which may be helpful in guiding advanced clinical applications and further research on the therapeutic potential of this extraordinary protein.
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Affiliation(s)
- Sajda Ashraf
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75210, Pakistan
| | - Hina Qaiser
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75210, Pakistan
| | - Sumayya Tariq
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75210, Pakistan
| | - Asaad Khalid
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, Jazan, Saudi Arabia
- Medicinal and Aromatic Plants Research Institute, National Center for Research, P.O. Box: 2424, Khartoum, 11111, Sudan
| | - Hafiz A. Makeen
- Pharmacy Practice Research Unit, Clinical Pharmacy Department, Faculty of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Hassan A. Alhazmi
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, Jazan, Saudi Arabia
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P.O. Box 114, 45142, Jazan, Saudi Arabia
| | - Zaheer Ul-Haq
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75210, Pakistan
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20
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Siriwardane DA, Jiang W, Mudalige T. Profiling in-vitro release of verteporfin from VISUDYNE® liposomal formulation and investigating verteporfin binding to human serum albumin. Int J Pharm 2023; 646:123449. [PMID: 37776965 DOI: 10.1016/j.ijpharm.2023.123449] [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: 08/15/2023] [Revised: 09/17/2023] [Accepted: 09/24/2023] [Indexed: 10/02/2023]
Abstract
VISUDYNE® is a liposomal formulation of verteporfin, used in the photodynamic therapy of age-related macular degeneration via intravenous administration. In this study, we developed a new in vitro method to quantify verteporfin release from VISUDYNE® under conditions that replicate in vivo conditions using human serum albumin (HSA). Verteporfin release from the liposomes was quantified using capillary electrophoresis (CE) with optical detection. Verteporfin binding to HSA was quantified by measuring HSA fluorescence that is quenched by drugs binding to specific HSA binding sites. The binding constant of verteporfin to HSA was calculated using the Stern Volmer plot and found to be 1.966 × 107 M-1 at 37 °C. Verteporfin binding to HSA involves one albumin binding site and the binding molar ratio between verteporfin and HSA is approximately 1:1. A rapid partitioning of verteporfin from VISUDYNE® onto HSA takes place within 10 min and involves the release of more than 90% of the verteporfin at physiological temperatures. This study verifies this approach of using CE to rapidly separate liposome and HSA-bound drug, thus minimizing drug release artifacts created with other methods.
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Affiliation(s)
- Dumindika A Siriwardane
- Arkansas Laboratory, Office of Regulatory Science, Office of Regulatory Affairs, U.S. Food and Drug Administration, Jefferson, AR 72079, USA
| | - Wenlei Jiang
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD 20993, USA.
| | - Thilak Mudalige
- Arkansas Laboratory, Office of Regulatory Science, Office of Regulatory Affairs, U.S. Food and Drug Administration, Jefferson, AR 72079, USA.
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21
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Khersonsky O, Goldsmith M, Zaretsky I, Hamer-Rogotner S, Dym O, Unger T, Yona M, Fridmann-Sirkis Y, Fleishman SJ. Stable Mammalian Serum Albumins Designed for Bacterial Expression. J Mol Biol 2023; 435:168191. [PMID: 37385581 DOI: 10.1016/j.jmb.2023.168191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/18/2023] [Accepted: 06/20/2023] [Indexed: 07/01/2023]
Abstract
Albumin is the most abundant protein in the blood serum of mammals and has essential carrier and physiological roles. Albumins are also used in a wide variety of molecular and cellular experiments and in the cultivated meat industry. Despite their importance, however, albumins are challenging for heterologous expression in microbial hosts, likely due to 17 conserved intramolecular disulfide bonds. Therefore, albumins used in research and biotechnological applications either derive from animal serum, despite severe ethical and reproducibility concerns, or from recombinant expression in yeast or rice. We use the PROSS algorithm to stabilize human and bovine serum albumins, finding that all are highly expressed in E. coli. Design accuracy is verified by crystallographic analysis of a human albumin variant with 16 mutations. This albumin variant exhibits ligand binding properties similar to those of the wild type. Remarkably, a design with 73 mutations relative to human albumin exhibits over 40 °C improved stability and is stable beyond the boiling point of water. Our results suggest that proteins with many disulfide bridges have the potential to exhibit extreme stability when subjected to design. The designed albumins may be used to make economical, reproducible, and animal-free reagents for molecular and cell biology. They also open the way to high-throughput screening to study and enhance albumin carrier properties.
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Affiliation(s)
- Olga Khersonsky
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel.
| | - Moshe Goldsmith
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Irina Zaretsky
- Antibody Engineering Unit, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Shelly Hamer-Rogotner
- Israel Structural Proteomics Center, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Orly Dym
- Israel Structural Proteomics Center, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Tamar Unger
- Israel Structural Proteomics Center, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Meital Yona
- Israel Structural Proteomics Center, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Yael Fridmann-Sirkis
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Sarel J Fleishman
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel.
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22
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Zhang H, Cai R, Chen C, Gao L, Ding P, Dai L, Chi B. Impacts of Halogen Substitutions on Bisphenol A Compounds Interaction with Human Serum Albumin: Exploring from Spectroscopic Techniques and Computer Simulations. Int J Mol Sci 2023; 24:13281. [PMID: 37686087 PMCID: PMC10487517 DOI: 10.3390/ijms241713281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/19/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Bisphenol A (BPA) is an endocrine-disrupting compound, and the binding mechanism of BPA with carrier proteins has drawn widespread attention. Halogen substitutions can significantly impact the properties of BPA, resulting in various effects for human health. Here, we selected tetrabromobisphenol A (TBBPA) and tetrachlorobisphenol A (TCBPA) to investigate the interaction between different halogen-substituted BPAs and human serum albumin (HSA). TBBPA/TCBPA spontaneously occupied site I and formed stable binary complexes with HSA. Compared to TCBPA, TBBPA has higher binding affinity to HSA. The effect of different halogen substituents on the negatively charged surface area of BPA was an important reason for the higher binding affinity of TBBPA to HSA compared to TCBPA. Hydrogen bonds and van der Waals forces were crucial in the TCBPA-HSA complex, while the main driving factor for the formation of the TBBPA-HSA complex was hydrophobic interactions. Moreover, the presence of TBBPA/TCBPA changed the secondary structure of HSA. Amino acid residues such as Lys199, Lys195, Phe211, Arg218, His242, Leu481, and Trp214 were found to play crucial roles in the binding process between BPA compounds and HSA. Furthermore, the presence of halogen substituents facilitated the binding of BPA compounds with HSA.
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Affiliation(s)
- Huan Zhang
- School of Life Sciences, Nanchang University, Nanchang 330031, China;
| | - Ruirui Cai
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; (R.C.); (C.C.); (L.G.); (L.D.)
| | - Chaolan Chen
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; (R.C.); (C.C.); (L.G.); (L.D.)
| | - Linna Gao
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; (R.C.); (C.C.); (L.G.); (L.D.)
| | - Pei Ding
- School of Pharmacy, Nanchang University, Nanchang 330031, China;
| | - Lulu Dai
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; (R.C.); (C.C.); (L.G.); (L.D.)
| | - Baozhu Chi
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; (R.C.); (C.C.); (L.G.); (L.D.)
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23
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Klinkmann G, Waterstradt K, Klammt S, Schnurr K, Schewe JC, Wasserkort R, Mitzner S. Exploring Albumin Functionality Assays: A Pilot Study on Sepsis Evaluation in Intensive Care Medicine. Int J Mol Sci 2023; 24:12551. [PMID: 37628734 PMCID: PMC10454468 DOI: 10.3390/ijms241612551] [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: 07/03/2023] [Revised: 08/03/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
Human serum albumin (HSA) as the most abundant plasma protein carries multifunctional properties. A major determinant of the efficacy of albumin relies on its potent binding capacity for toxins and pharmaceutical agents. Albumin binding is impaired in pathological conditions, affecting its function as a molecular scavenger. Limited knowledge is available on the functional properties of albumin in critically ill patients with sepsis or septic shock. A prospective, non-interventional clinical trial assessed blood samples from 26 intensive care patients. Albumin-binding capacity (ABiC) was determined by quantifying the unbound fraction of the fluorescent marker, dansyl sarcosine. Electron paramagnetic resonance fatty acid spin-probe evaluated albumin's binding and detoxification efficiencies. Binding efficiency (BE) reflects the strength and amount of bound fatty acids, and detoxification efficiency (DTE) indicates the molecular flexibility of patient albumin. ABiC, BE, and DTE effectively differentiated control patients from those with sepsis or septic shock (AUROC > 0.8). The diagnostic performance of BE showed similarities to procalcitonin. Albumin functionality correlates with parameters for inflammation, hepatic, or renal insufficiency. Albumin-binding function was significantly reduced in critically ill patients with sepsis or septic shock. These findings may help develop patient-specific algorithms for new diagnostic and therapeutic approaches.
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Affiliation(s)
- Gerd Klinkmann
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Center Rostock, Schillingallee 35, 18057 Rostock, Germany
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Extracorporeal Therapy Systems, Schillingallee 68, 18057 Rostock, Germany
| | - Katja Waterstradt
- Department of Research and Development, MedInnovation GmbH, 12487 Berlin, Germany
| | - Sebastian Klammt
- Division of Nephrology, Department of Internal Medicine, University Medical Center Rostock, Ernst-Heydemann-Str. 6, 18057 Rostock, Germany
| | - Kerstin Schnurr
- Department of Research and Development, MedInnovation GmbH, 12487 Berlin, Germany
| | - Jens-Christian Schewe
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Center Rostock, Schillingallee 35, 18057 Rostock, Germany
| | - Reinhold Wasserkort
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Extracorporeal Therapy Systems, Schillingallee 68, 18057 Rostock, Germany
- Division of Nephrology, Department of Internal Medicine, University Medical Center Rostock, Ernst-Heydemann-Str. 6, 18057 Rostock, Germany
| | - Steffen Mitzner
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Extracorporeal Therapy Systems, Schillingallee 68, 18057 Rostock, Germany
- Division of Nephrology, Department of Internal Medicine, University Medical Center Rostock, Ernst-Heydemann-Str. 6, 18057 Rostock, Germany
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24
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Bai Z, Méndez-Sánchez N, Romeiro FG, Mancuso A, Philips CA, Tacke F, Basaranoglu M, Primignani M, Ibrahim M, Wong YJ, Nery FG, Teschke R, Ferreira CN, Muñoz AE, Pinyopornpanish K, Thevenot T, Singh SP, Mohanty A, Satapathy SK, Ridola L, Maruyama H, Cholongitas E, Levi Sandri GB, Yang L, Shalimar, Yang Y, Villa E, Krag A, Wong F, Jalan R, O’Brien A, Bernardi M, Qi X. Use of albumin infusion for cirrhosis-related complications: An international position statement. JHEP Rep 2023; 5:100785. [PMID: 37456673 PMCID: PMC10339261 DOI: 10.1016/j.jhepr.2023.100785] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/06/2023] [Accepted: 04/18/2023] [Indexed: 07/18/2023] Open
Abstract
Background & Aims Numerous studies have evaluated the role of human albumin (HA) in managing various liver cirrhosis-related complications. However, their conclusions remain partially controversial, probably because HA was evaluated in different settings, including indications, patient characteristics, and dosage and duration of therapy. Methods Thirty-three investigators from 19 countries with expertise in the management of liver cirrhosis-related complications were invited to organise an International Special Interest Group. A three-round Delphi consensus process was conducted to complete the international position statement on the use of HA for treatment of liver cirrhosis-related complications. Results Twelve clinically significant position statements were proposed. Short-term infusion of HA should be recommended for the management of hepatorenal syndrome, large volume paracentesis, and spontaneous bacterial peritonitis in liver cirrhosis. Its effects on the prevention or treatment of other liver cirrhosis-related complications should be further elucidated. Long-term HA administration can be considered in specific settings. Pulmonary oedema should be closely monitored as a potential adverse effect in cirrhotic patients receiving HA infusion. Conclusions Based on the currently available evidence, the international position statement suggests the potential benefits of HA for the management of multiple liver cirrhosis-related complications and summarises its safety profile. However, its optimal timing and infusion strategy remain to be further elucidated. Impact and implications Thirty-three investigators from 19 countries proposed 12 position statements on the use of human albumin (HA) infusion in liver cirrhosis-related complications. Based on current evidence, short-term HA infusion should be recommended for the management of HRS, LVP, and SBP; whereas, long-term HA administration can be considered in the setting where budget and logistical issues can be resolved. However, pulmonary oedema should be closely monitored in cirrhotic patients who receive HA infusion.
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Affiliation(s)
- Zhaohui Bai
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Nahum Méndez-Sánchez
- Liver Research Unit, Medica Sur Clinic and Foundation, National Autonomous University of Mexico, Mexico City, Mexico
| | | | - Andrea Mancuso
- Medicina Interna 1, Azienda di Rilievo Nazionale ad Alta Specializzazione Civico-Di Cristina-Benfratelli, Palermo, Italy
| | - Cyriac Abby Philips
- Clinical and Translational Hepatology, The Liver Institute, Center of Excellence in GI Sciences, Rajagiri Hospital, Aluva, India
| | - Frank Tacke
- Department of Hepatology and Gastroenterology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Metin Basaranoglu
- Division of Gastroenterology, Department of Internal Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Massimo Primignani
- Division of Gastroenterology and Hepatology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Mostafa Ibrahim
- Department of Gastroenterology and Hepatology, Theodor Bilharz Research Institute, Cairo, Egypt
| | - Yu Jun Wong
- Department of Gastroenterology and Hepatology, Changi General Hospital, Singapore
| | - Filipe Gaio Nery
- Serviço de Cuidados Intensivos, Unidade de Cuidados Intermédios Médico-Cirúrgica, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Rolf Teschke
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Germany
| | - Carlos Noronha Ferreira
- Serviço de Gastrenterologia e Hepatologia, Hospital de Santa Maria-Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | - Alberto E. Muñoz
- Sección Hepatología, Hospital Dr. Carlos B. Udaondo. Ciudad Autónoma de Buenos Aires, Argentina
| | - Kanokwan Pinyopornpanish
- Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Thierry Thevenot
- Centre Hospitalier Universitaire de Besançon, Hôpital Jean Minjoz, Service d’Hépatologie et de Soins Intensifs Digestifs, Besançon, France
| | | | - Arpan Mohanty
- Section of Gastroenterology, Boston Medical Center, Boston, MA, USA
| | - Sanjaya K. Satapathy
- Department of Internal Medicine, Division of Hepatology, Sandra Atlas Bass Center for Liver Diseases & Transplantation, Donald and Barbara Zucker School of Medicine for Hofstra/Northwell Health, Manhasset, New York, USA
| | - Lorenzo Ridola
- Department of Translational and Precision Medicine, “Sapienza” University of Rome, Rome, Italy
| | - Hitoshi Maruyama
- Department of Gastroenterology, Juntendo University, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Evangelos Cholongitas
- First Department of Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Li Yang
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, China
| | - Shalimar
- Department of Gastroenterology, All India Institute of Medical Sciences, New Delhi, India
| | - Yongping Yang
- Senior Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Erica Villa
- Department of Gastroenterology, University of Modena & Reggio Emilia and Azienda Ospedaliero-Universitaria di Modena, Italy
| | - Aleksander Krag
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Florence Wong
- Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Rajiv Jalan
- Liver Failure Group, UCL Institute for Liver and Digestive Health, The Royal Free Hospital, University College London, London, UK
| | | | - Mauro Bernardi
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Xingshun Qi
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - the Liver Cirrhosis-related Complications (LCC)-International Special Interest Group
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
- Liver Research Unit, Medica Sur Clinic and Foundation, National Autonomous University of Mexico, Mexico City, Mexico
- Internal Medicine Department, Botucatu Medical School, São Paulo, Brazil
- Medicina Interna 1, Azienda di Rilievo Nazionale ad Alta Specializzazione Civico-Di Cristina-Benfratelli, Palermo, Italy
- Clinical and Translational Hepatology, The Liver Institute, Center of Excellence in GI Sciences, Rajagiri Hospital, Aluva, India
- Department of Hepatology and Gastroenterology, Charité Universitätsmedizin Berlin, Berlin, Germany
- Division of Gastroenterology, Department of Internal Medicine, Bezmialem Vakif University, Istanbul, Turkey
- Division of Gastroenterology and Hepatology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Gastroenterology and Hepatology, Theodor Bilharz Research Institute, Cairo, Egypt
- Department of Gastroenterology and Hepatology, Changi General Hospital, Singapore
- Serviço de Cuidados Intensivos, Unidade de Cuidados Intermédios Médico-Cirúrgica, Centro Hospitalar Universitário do Porto, Porto, Portugal
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Germany
- Serviço de Gastrenterologia e Hepatologia, Hospital de Santa Maria-Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
- Sección Hepatología, Hospital Dr. Carlos B. Udaondo. Ciudad Autónoma de Buenos Aires, Argentina
- Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Centre Hospitalier Universitaire de Besançon, Hôpital Jean Minjoz, Service d’Hépatologie et de Soins Intensifs Digestifs, Besançon, France
- Kalinga Gastroenterology Foundation, Odisha, India
- Section of Gastroenterology, Boston Medical Center, Boston, MA, USA
- Department of Internal Medicine, Division of Hepatology, Sandra Atlas Bass Center for Liver Diseases & Transplantation, Donald and Barbara Zucker School of Medicine for Hofstra/Northwell Health, Manhasset, New York, USA
- Department of Translational and Precision Medicine, “Sapienza” University of Rome, Rome, Italy
- Department of Gastroenterology, Juntendo University, Hongo, Bunkyo-ku, Tokyo, Japan
- First Department of Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
- Division of General Surgery and Liver Transplantation, San Camillo Hospital, Rome, Italy
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, China
- Department of Gastroenterology, All India Institute of Medical Sciences, New Delhi, India
- Senior Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
- Department of Gastroenterology, University of Modena & Reggio Emilia and Azienda Ospedaliero-Universitaria di Modena, Italy
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Liver Failure Group, UCL Institute for Liver and Digestive Health, The Royal Free Hospital, University College London, London, UK
- Division of Medicine, Royal Free Campus, London, UK
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
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25
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Poddar S, Woolfork AG, Iftekhar S, Ovbude ST, Hage DS. Characterization of binding by sulfonylureas with normal or modified human serum albumin using affinity microcolumns prepared by entrapment. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1226:123798. [PMID: 37331054 PMCID: PMC10529298 DOI: 10.1016/j.jchromb.2023.123798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/20/2023]
Abstract
Modification of proteins can occur during diabetes due to the formation of advanced glycation end-products (AGEs) with reactive dicarbonyls such as glyoxal (Go) and methylglyoxal (MGo). Human serum albumin (HSA) is a serum protein that binds to many drugs in blood and that is known to be modified by Go and MGo. This study examined the binding of various sulfonylurea drugs with these modified forms of HSA by using high-performance affinity microcolumns prepared by non-covalent protein entrapment. Zonal elution experiments were employed to compare the retention and overall binding constants for the drugs with Go- or MGo-modified HSA vs normal HSA. The results were compared to values from the literature, such as measured or estimated using affinity columns containing covalently immobilized HSA or biospecifically-adsorbed HSA. The entrapment-based approach provided estimates of global affinity constants within 3-5 min for most of the tested drugs and with typical precisions of ±10-23%. Each entrapped protein microcolumn was stable for over at least 60-70 injections and one month of use. The results obtained with normal HSA agreed at the 95% confidence level with global affinity constants that have been reported for the given drugs in the literature. It was found for HSA that had been modified with clinically-relevant levels of either Go or MGo that an increase in the global affinity constant of up to 2.1-fold occurred for some of the tested drugs. The information acquired in this study can be used in the future to adapt this entrapment-based approach to study and evaluate interactions between other types of drugs and normal or modified binding agents for clinical testing and biomedical research.
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Affiliation(s)
- Saumen Poddar
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Ashley G Woolfork
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Sazia Iftekhar
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Susan T Ovbude
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA.
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26
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Eren E, Black SM, Reader BF, Beal E, Cuddington C, Belcher DA, Palmer AF, Whitson BA. Novel Polymerized Human Serum Albumin For Ex Vivo Lung Perfusion. ASAIO J 2023; 69:716-723. [PMID: 36976617 PMCID: PMC10313759 DOI: 10.1097/mat.0000000000001918] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
Ex vivo lung perfusion (EVLP) is a method of organ preservation to expand the donor pool by allowing organ assessment and repair. Perfusion solution composition is crucial to maintaining and improving organ function during EVLP. EVLP compared perfusates supplemented with either polymeric human serum albumin (PolyHSA) or standard human serum albumin (HSA). Rat heart-lung blocks underwent normothermic EVLP (37°C) for 120 minutes using perfusate with 4% HSA or 4% PolyHSA synthesized at a 50:1 or 60:1 molar ratio of glutaraldehyde to PolyHSA. Oxygen delivery, lung compliance, pulmonary vascular resistance (PVR), wet-to-dry ratio, and lung weight were measured. Perfusion solution type (HSA or PolyHSA) significantly impacted end-organ metrics. Oxygen delivery, lung compliance, and PVR were comparable among groups ( P > 0.05). Wet-to-dry ratio increased in the HSA group compared to the PolyHSA groups (both P < 0.05) suggesting edema formation. Wet-to-dry ratio was most favorable in the 60:1 PolyHSA-treated lungs compared to HSA ( P < 0.05). Compared to using HSA, PolyHSA significantly lessened lung edema. Our data confirm that the physical properties of perfusate plasma substitutes significantly impact oncotic pressure and the development of tissue injury and edema. Our findings demonstrate the importance of perfusion solutions and PolyHSA is an excellent candidate macromolecule to limit pulmonary edema. http://links.lww.com/ASAIO/A980.
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Affiliation(s)
- Emre Eren
- Department of Surgery, The Ohio State University Wexner Medical Center
- The Collaboration for Organ Perfusion, Preservation, Engineering and Regeneration (COPPER) Laboratory
| | - Sylvester M. Black
- Department of Surgery, The Ohio State University Wexner Medical Center
- The Collaboration for Organ Perfusion, Preservation, Engineering and Regeneration (COPPER) Laboratory
| | - Brenda F. Reader
- Department of Surgery, The Ohio State University Wexner Medical Center
- The Collaboration for Organ Perfusion, Preservation, Engineering and Regeneration (COPPER) Laboratory
| | - Eliza Beal
- Department of Surgery, The Ohio State University Wexner Medical Center
| | - Clayton Cuddington
- The Collaboration for Organ Perfusion, Preservation, Engineering and Regeneration (COPPER) Laboratory
- William G. Lowrie Department of Chemical and Biomolecular Engineering, College of Engineering, The Ohio State University
| | - Donald A. Belcher
- William G. Lowrie Department of Chemical and Biomolecular Engineering, College of Engineering, The Ohio State University
| | - Andre F. Palmer
- The Collaboration for Organ Perfusion, Preservation, Engineering and Regeneration (COPPER) Laboratory
- William G. Lowrie Department of Chemical and Biomolecular Engineering, College of Engineering, The Ohio State University
| | - Bryan A. Whitson
- Department of Surgery, The Ohio State University Wexner Medical Center
- The Collaboration for Organ Perfusion, Preservation, Engineering and Regeneration (COPPER) Laboratory
- The Davis Heart and Lung Research Institute at The Ohio State University Wexner Medical, College of Medicine
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27
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Abubakar M, Mohamed SB, Abd Halim AA, Tayyab S. Use of computational and wet lab techniques to examine the molecular association between a potent hepatitis C virus inhibitor, PSI-6206 and human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 294:122543. [PMID: 36868020 DOI: 10.1016/j.saa.2023.122543] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/17/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
This study explores the plausible molecular interaction between a potent hepatitis C virus inhibitor, PSI-6206 (PSI), and human serum albumin (HSA), a primary transporter in blood plasma. Results obtained from both computational viz. molecular docking and molecular dynamics (MD) simulation and wet lab techniques such as UV absorption, fluorescence, circular dichroism (CD), and atomic force microscopy (AFM) complemented each other. While docking results identified PSI binding to subdomain IIA (Site I) of HSA by forming six hydrogen bonds, MD simulations signified the complex stability throughout the 50,000 ps. A consistent cutback in the Stern-Volmer quenching constant (Ksv) along with rising temperatures supported the static mode of fluorescence quenching in response to PSI addition and implied the development of the PSI-HSA complex. This discovery was backed by the alteration of the HSA UV absorption spectrum, a larger value (>1010 M-1.s-1) of the bimolecular quenching rate constant (kq) and the AFM-guided swelling of the HSA molecule, in the presence of PSI. Moreover, the fluorescence titration results revealed a modest binding affinity (4.27-6.25×103 M-1) in the PSI-HSA system, involving hydrogen bonds, van der Waals and hydrophobic interactions, as inferred from ΔS = + 22.77 J mol-1 K-1 and ΔH = - 11.02 KJ mol-1values. CD and 3D fluorescence spectra reminded significant adjustment in the 2° and 3° structures and modification in the Tyr/Trp microenvironment of the protein in the PSI-bound state. The results obtained from drug competing experiments also advocated the binding location of PSI in HSA as Site I.
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Affiliation(s)
- Mujaheed Abubakar
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Saharuddin B Mohamed
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia.
| | - Adyani Azizah Abd Halim
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Saad Tayyab
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur, Malaysia.
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28
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Duman B, Erkmen C, Zahirul Kabir M, Ching Yi L, Mohamad SB, Uslu B. In vitro interactions of two pesticides, propazine and quinoxyfen with bovine serum albumin: Spectrofluorometric and molecular docking investigations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 300:122907. [PMID: 37257323 DOI: 10.1016/j.saa.2023.122907] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 06/02/2023]
Abstract
Binding mechanisms of two selected pesticides, propazine (PRO) and quinoxyfen (QUI) with bovine serum albumin (BSA) was examined using fluorescence, absorption and molecular docking methods. Intrinsic fluorescence of BSA was quenched in the presence of both PRO and QUI. The quenching was ascertained to be conversely linked to temperature, which suggested the contribution of static quenching process in the PRO-BSA and QUI-BSA complex formations. This results were validated by the enhancement in absorption spectrum of BSA upon binding with PRO and QUI. Binding constant values (Kf = 9.55-0.60 × 10-3 M-1 for PRO-BSA system; Kf = 7.08-5.01 × 102 M-1 for QUI-BSA system) and number of binding site (n) values for the PRO-BSA and QUI-BSA systems at different temperatures affirmed a weak binding strength with a set of equivalent binding sites on BSA. Thermodynamic data obtained for both the PRO-BSA and QUI-BSA interactions predicted that the association process was spontaneous and non-covalent contacts such as hydrophobic interactions, van der Waals forces and hydrogen bonds participated in the binding reactions. This result was further supported by the molecular docking assessments. Three-dimensional spectral results revealed the microenvironmental alterations near tryptophan (Trp) and tyrosine (Tyr) residues in BSA by the addition of PRO and QUI. The docking analysis demonstrated the binding pattern for the PRO-BSA and QUI-BSA systems and disclosed the preferred binding site of both PRO and QUI as site I (subdomain IIA) of BSA.
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Affiliation(s)
- Bahadir Duman
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Türkiye; Ankara University, The Graduate School of Health Sciences, 06110 Ankara, Türkiye
| | - Cem Erkmen
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Türkiye
| | - Md Zahirul Kabir
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Türkiye
| | - Lim Ching Yi
- Faculty of Science, Bioinformatics Programme, Institute of Biological Sciences, University of Malaya, Kuala Lumpur, Malaysia
| | - Saharuddin B Mohamad
- Faculty of Science, Bioinformatics Programme, Institute of Biological Sciences, University of Malaya, Kuala Lumpur, Malaysia; Centre of Research for Computational Sciences and Informatics for Biology, Bioindustry, Environment, Agriculture and Healthcare, University of Malaya, Kuala Lumpur, Malaysia
| | - Bengi Uslu
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Türkiye.
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29
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Yin J, Liu K, Yuan S, Guo Y, Yu H, Cheng Y, Xie Y, Qian H, Yao W. Carbon dots in breadcrumbs: Effect of frying on them and interaction with human serum albumin. Food Chem 2023; 424:136371. [PMID: 37210845 DOI: 10.1016/j.foodchem.2023.136371] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 04/25/2023] [Accepted: 05/11/2023] [Indexed: 05/23/2023]
Abstract
This research confirmed the existence of carbon dots (CDs) in breadcrumbs before frying, and CDs could be significantly affected by frying. The content of CDs increased from 0.013 ± 0.002% to 1.029 ± 0.002%, and the fluorescence quantum yield increased from 1.82 ± 0.01% to 3.16 ± 0.002% after frying at 180℃ for 5 min. The size reduced from 3.32 ± 0.71 nm to 2.67 ± 0.48 nm, and the content of N increased from 1.58% to 2.53%. In addition, the interaction of the CDs and human serum albumin (HSA) through electrostatic and hydrophobic induces the increase of α-helix structure and the change of the amino acid microenvironment of HSA. CDs corona, which may have physiological significance, was found through the transmission electron microscope.
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Affiliation(s)
- Jie Yin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China
| | - Kunfeng Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China
| | - Shaofeng Yuan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China
| | - Yahui Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China
| | - Hang Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China
| | - Yuliang Cheng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China
| | - Yunfei Xie
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China
| | - He Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China.
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30
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Anderson GM. Determination of Indolepropionic Acid and Related Indoles in Plasma, Plasma Ultrafiltrate, and Saliva. Metabolites 2023; 13:metabo13050602. [PMID: 37233643 DOI: 10.3390/metabo13050602] [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: 03/29/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
The microbial metabolite indolepropionic acid (IPA) and related indolic metabolites, including indolecarboxylic acid (ICA), indolelactic acid (ILA), indoleacetic acid (IAA), indolebutyric acid (IBA), indoxylsulfate (ISO4), and indole, were determined in human plasma, plasma ultrafiltrate (UF), and saliva. The compounds were separated on a 150 × 3 mm column of 3 μm Hypersil C18 eluted with a mobile phase of 80% pH 5 0.01 M sodium acetate containing 1.0 g/L of tert-butylammonium chloride/20% acetonitrile and then detected fluorometrically. Levels of IPA in human plasma UF and of ILA in saliva are reported for the first time. The determination of IPA in plasma UF enables the first report of free plasma IPA, the presumed physiologically active pool of this important microbial metabolite of tryptophan. Plasma and salivary ICA and IBA were not detected, consistent with the absence of any prior reported values. Observed levels or limits of detection for other indolic metabolites usefully supplement limited prior reports.
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Affiliation(s)
- George M Anderson
- Department of Laboratory Medicine, The Child Study Center, Yale University School of Medicine, 230 S. Frontage Rd., New Haven, CT 06519, USA
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31
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Guglielmelli A, Bartucci R, Rizzuti B, Palermo G, Guzzi R, Strangi G. The interaction of tryptophan enantiomers with model membranes is modulated by polar head type and physical state of phospholipids. Colloids Surf B Biointerfaces 2023; 224:113216. [PMID: 36848783 DOI: 10.1016/j.colsurfb.2023.113216] [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: 11/18/2022] [Revised: 01/29/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023]
Abstract
The mutual influence of chiral bioactive molecules and supramolecular assemblies is currently being studied in many research fields, including medical-pharmaceutical applications. Model membranes of phospholipids, such as the zwitterionic dipalmitoylphosphatidylcholine (DPPC) and the anionic dipalmitoylphosphatidylglycerol (DPPG), interact with a variety of chiral compounds that include amino acids. In this work, the interaction of tryptophan enantiomers, L-Trp and D-Trp, on DPPC and DPPG bilayers was investigated by using differential scanning calorimetry, attenuated total reflectance-Fourier transform infrared and spin-label electron spin resonance spectroscopies as well as molecular docking simulations. The results show that Trp enantiomers slightly perturb the bilayer thermotropic phase transitions. For both membranes, O atoms in the carbonyl groups have a propensity to act as acceptors of a (weak) hydrogen bond. The Trp chiral forms also promote formation of hydrogen bonds and/or hydration in the PO2- moiety of the phosphate group, especially for the DPPC bilayer. In contrast, they interact more closely with the glycerol group of DPPG polar head. Only for DPPC bilayers, both enantiomers increase the packing of the first hydrocarbon chain segments for temperatures through the gel state, whereas they do not affect the lipid chain order and mobility in the fluid state. The results are consistent with a Trp association in the upper region of the bilayers without permeation in the innermost hydrophobic region. The findings suggest that neutral and anionic lipid bilayers are differently sensitive to amino acid chirality.
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Affiliation(s)
- Alexa Guglielmelli
- Department of Physics, NLHT Lab., University of Calabria, 87036 Rende, Italy; CNR NANOTEC-Institute of Nanotechnology, SS Rende (CS), 87036 Rende, Italy
| | - Rosa Bartucci
- Department of Chemistry and Chemical Technologies, Molecular Biophysics Laboratory, University of Calabria, 87036 Rende, Italy.
| | - Bruno Rizzuti
- CNR NANOTEC-Institute of Nanotechnology, SS Rende (CS), 87036 Rende, Italy; Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Unit GBsC-CSIC-BIFI, University of Zaragoza, 50018 Zaragoza, Spain
| | - Giovanna Palermo
- Department of Physics, NLHT Lab., University of Calabria, 87036 Rende, Italy; CNR NANOTEC-Institute of Nanotechnology, SS Rende (CS), 87036 Rende, Italy
| | - Rita Guzzi
- CNR NANOTEC-Institute of Nanotechnology, SS Rende (CS), 87036 Rende, Italy; Department of Physics, Molecular Biophysics Laboratory, University of Calabria, 87036 Rende, Italy
| | - Giuseppe Strangi
- Department of Physics, NLHT Lab., University of Calabria, 87036 Rende, Italy; CNR NANOTEC-Institute of Nanotechnology, SS Rende (CS), 87036 Rende, Italy; Department of Physics, Case Western Reserve University, 2076 Adelbert Rd, Cleveland, OH 44106 USA
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32
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Label-free biosensing of lignans for therapeutics using engineered model surfaces. Int J Biol Macromol 2023; 233:123528. [PMID: 36736979 DOI: 10.1016/j.ijbiomac.2023.123528] [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: 11/16/2022] [Revised: 01/24/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023]
Abstract
The label-free interaction analysis of macromolecules and small molecules has increasing importance nowadays, both in diagnostics and therapeutics. In the blood vascular system, human serum albumin (HSA) is a vital globular transport protein with potential multiple ligand binding sites. Characterizing the binding affinity of compounds to HSA is essential in pharmaceutics and in developing new compounds for clinical application. Aryltetralin lignans from the roots of Anthriscus sylvestris are potential antitumor therapeutic candidates, but their molecular scale interactions with specific biomolecules are unrevealed. Here, we applied the label-free grating-coupled interferometry (GCI) biosensing method with a polycarboxylate-based hydrogel layer with immobilized HSA on top of it. With this engineered model surface, we could determine the binding parameters of two novel aryltetralin lignans, deoxypodophyllotoxin (DPT), and angeloyl podophyllotoxin (APT) to HSA. Exploiting the multi-channel referencing ability, the unique surface sensitivity, and the throughput of GCI, we first revealed the specific biomolecular interactions. Traditional label-free kinetic measurements were also compared with a novel, fast way of measuring affinity kinetics using less sample material (repeated analyte pulses of increasing duration (RAPID)). Experiments with well-characterized molecular interactions (furosemide to carbonic-anhydrase (CAII) and warfarin, norfloxacin to HSA) were performed to prove the reliability of the RAPID method. In all investigated cases, the RAPID and traditional measurement gave similar affinity values. In the case of DPT, the measurements and relevant modeling suggested two binding sites on HSA, with dissociation constant values of Kd1 = 1.8 ± 0.01 μM, Kd2 = 3 ± 0.02 μM. In the case of APT, the experiments resulted in Kd1 = 9 ± 1.7 μM, Kd2 = 28 ± 0.3 μM. The obtained binding values might suggest the potential medical application of DPT and APT without further optimization of their binding affinity to HSA. These results could be also adapted to other biomolecules and applications where sample consumption and the rapidity of the measurements are critical.
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33
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Zahirul Kabir M, Tayyab H, Erkmen C, Kurbanoglu S, Mohamad SB, Uslu B. Characterization of Climbazole-Bovine serum albumin interaction by experimental and in silico approaches. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 288:122197. [PMID: 36470090 DOI: 10.1016/j.saa.2022.122197] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/08/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Interactive association of an antifungal drug, climbazole (CBZ) with the carrier protein in bovine circulation, bovine serum albumin (BSA) was explored by fluorescence and absorption spectroscopy along with in silico techniques. The fluorescence and absorption spectral alterations of the protein upon addition of CBZ affirmed the complex foration between CBZ and BSA. The inverse temperature dependence behaviour of the KSV values as well as the hyperchromic result of the protein's absorption signals characterized CBZ-triggered quenching of BSA fluorescence as the static quenching. A weak binding affinity (Ka = 3.12-1.90-× 103 M-1) was reported towards the CBZ-BSA association process. Interpretation of thermodynamic data (entropy change = +14.68 J mol-1 K-1 and enthalpy change = -15.07 kJ mol-1) and in silico analyses anticipated that hydrophobic forces, van der Waals forces and hydrogen bonds were the key intermolecular forces in the complex stabilization. Inclusion of CBZ to BSA produced microenvironmental perturbations around Tyr and Trp residues, and also significantly defended temperature-induced destabilization of BSA. The binding locus of CBZ was detected in the proximity of Sudlow's sites I (subdomain IIA) and II (subdomain IIIA) of BSA, exhibiting greater preference towards site II, as revealed by competitive site-marker displacement investigations and in silico analysis. The stability of the CBZ-BSA complex was further validated by the molecular dynamics simulation assessments.
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Affiliation(s)
- Md Zahirul Kabir
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560, Ankara, Turkey
| | - Hafsa Tayyab
- Faculty of Science, Bioinformatics Programme, Institute of Biological Sciences, University of Malaya, Kuala Lumpur, Malaysia
| | - Cem Erkmen
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560, Ankara, Turkey; Ankara University, The Graduate School of Health Sciences, 06110, Ankara, Turkey
| | - Sevinc Kurbanoglu
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560, Ankara, Turkey
| | - Saharuddin B Mohamad
- Faculty of Science, Bioinformatics Programme, Institute of Biological Sciences, University of Malaya, Kuala Lumpur, Malaysia; Centre of Research for Computational Sciences and Informatics for Biology, Bioindustry, Environment, Agriculture and Healthcare, University of Malaya, Kuala Lumpur, Malaysia
| | - Bengi Uslu
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560, Ankara, Turkey.
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34
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Nishi K. [Elucidation of Drug Transport Mechanism by Serum Protein and Development for Pancreatic Cancer Treatment]. YAKUGAKU ZASSHI 2023; 143:205-210. [PMID: 36858548 DOI: 10.1248/yakushi.22-00173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Human serum albumin (HSA) and α1-acid glycoprotein (AGP) are the major drug-binding proteins in the blood and regulate the tissue transfer of bound drugs. We succeeded in clarifying the three-dimensional structure of AGP for the first time in the world from X-ray crystal structure analysis. Using a site-directed mutagenesis method by constructing yeast expression systems as well as the three-dimensional structure, we elucidated the properties of drug binding sites of AGP. We also found that structural change due to the interaction between AGP and cell membranes causes the release of bound drugs and reported an "AGP-mediated drug transport process." Pancreatic cancer has an extremely low response rate to anticancer drugs compared to other cancers and is resistant to starvation of nutrients including fatty acids. We clarified that glutamine metabolism is involved in this tolerance. Furthermore, aiming at efficient drug delivery and effective treatment for pancreatic cancer, we focused on nitric oxide (NO) which increases pancreatic blood flow and has a cell-killing effect on tumors and surrounding stromal tissues. We successfully synthesized nitrated phenylbutyrate (NPB), which binds to HSA and has an antitumor effect in vitro and vivo. The binding of NPB to HSA is considered to be useful for delivery to tumors through the enhanced permeability and retention (EPR) effect and HSA receptors.
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Affiliation(s)
- Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University.,Yokohama University of Pharmacy
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35
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Yokohata S, Ohkura K, Nagamune H, Tomoyasu T, Tabata A. Human serum albumin stabilizes streptolysin S activity secreted in the extracellular milieu by streptolysin S-producing streptococci. Microbiol Immunol 2023; 67:58-68. [PMID: 36478453 DOI: 10.1111/1348-0421.13042] [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: 06/28/2022] [Revised: 12/03/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
Anginosus group streptococci (AGS) are opportunistic pathogens of the human oral cavity; however, their pathogenicity has not been discussed in detail. Oral streptococci live in the gingival sulcus, from where they can easily translocate into the bloodstream due to periodontal diseases and dental treatment and cause hazardous effects on the host through their virulence factors. Streptolysin S (SLS), a pathogenic factor produced by β-hemolytic species/strains belonging to AGS, plays an important role in damaging host cells. Therefore, we investigated the SLS-dependent cytotoxicity of β-hemolytic Streptococcus anginosus subsp. anginosus (SAA), focusing on different growth conditions such as in the bloodstream. Consequently, SLS-dependent hemolytic activity/cytotoxicity in the culture supernatant of β-hemolytic SAA was stabilized by blood components, particularly human serum albumin (HSA). The present study suggests that the secreted SLS, not only from β-hemolytic SAA, but also from other SLS-producing streptococci, is stabilized by HSA. As HSA is the most abundant protein in human plasma, the results of this study provide new insights into the risk of SLS-producing streptococci which can translocate into the bloodstream.
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Affiliation(s)
- Shuto Yokohata
- Division of Bioresource Science, Graduate School of Sciences and Technology for Innovation, Tokushima University Graduate School, Tokushima, Japan
| | - Kazuto Ohkura
- Division of Clinical Pharmacy and Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Mie, Japan
| | - Hideaki Nagamune
- Division of Bioresource Science, Graduate School of Sciences and Technology for Innovation, Tokushima University Graduate School, Tokushima, Japan.,Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Toshifumi Tomoyasu
- Division of Bioresource Science, Graduate School of Sciences and Technology for Innovation, Tokushima University Graduate School, Tokushima, Japan.,Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Atsushi Tabata
- Division of Bioresource Science, Graduate School of Sciences and Technology for Innovation, Tokushima University Graduate School, Tokushima, Japan.,Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University Graduate School, Tokushima, Japan
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36
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Szafraniec MJ. Interactions of chlorophyll-derived photosensitizers with human serum albumin are determined by the central metal ion. J Biomol Struct Dyn 2023; 41:479-492. [PMID: 34844514 DOI: 10.1080/07391102.2021.2007794] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Two structurally similar derivatives of chlorophyll a, chlorophyllide a (Chlide) and zinc-pheophorbide a (Zn-Pheide), differing only in central metal ion (Mg2+ or Zn2+, respectively) substituting the tetrapyrrole ring, were investigated with regard to their binding to human serum albumin (HSA). Chlide and Zn-Pheide are very promising photosensitizers with potential application in photodynamic therapy, therefore it is desirable to investigate their interactions with serum proteins. The studies included absorption and steady-state fluorescence spectroscopy, as well as molecular docking. It was found that both investigated compounds form complexes with HSA. Experimental data revealed two classes of binding sites for each compound. The affinities (Ka) for the first class were in the range of 105 and 106 M-1 for Chlide and Zn-Pheide, respectively, while the second class was characterized by the affinities of the order of 104 M-1 for both derivatives. Molecular docking simulations together with displacement studies revealed that the primary binding site of the studied compounds is the heme site, localized in the subdomain IB, however the best characterized binding sites of HSA, namely the Sudlow's sites I and II are also involved. The interactions between the derivatives of chlorophyll and HSA were found to be predominantly hydrophobic and to a lesser extent hydrogen bonding. Our results demonstrate that the centrally bound metal ion determines both the affinity and mode of binding to HSA, which may be a feature differentiating these compounds in terms of their pharmacokinetics.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Milena J Szafraniec
- Łukasiewicz Research Network - PORT Polish Center for Technology Development, Wrocław, Poland
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37
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Jagrosse M, Agredo P, Abraham BL, Toriki ES, Nilsson BL. Supramolecular Phenylalanine-Derived Hydrogels for the Sustained Release of Functional Proteins. ACS Biomater Sci Eng 2023; 9:784-796. [PMID: 36693219 PMCID: PMC9930093 DOI: 10.1021/acsbiomaterials.2c01299] [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] [Indexed: 01/25/2023]
Abstract
Protein-based therapeutics have emerged as next-generation pharmaceutical agents for oncology, bone regeneration, autoimmune disorders, viral infections, and other diseases. The clinical application of protein therapeutics has been impeded by pharmacokinetic and pharmacodynamic challenges including off-target toxicity, rapid clearance, and drug stability. Strategies for the localized and sustained delivery of protein therapeutics have shown promise in addressing these challenges. Hydrogels are critical materials that enable these delivery strategies. Supramolecular hydrogels composed of self-assembled materials have demonstrated biocompatibility advantages over polymer hydrogels, with peptide and protein-based gels showing strong potential. However, cost is a significant drawback of peptide-based supramolecular hydrogels. Supramolecular hydrogels composed of inexpensive low-molecular-weight (LMW) gelators, including modified amino acid derivatives, have been reported as viable alternatives to peptide-based materials. Herein, we report the encapsulation and release of proteins from supramolecular hydrogels composed of perfluorinated fluorenylmethyloxcarbonyl-modified phenylalanine (Fmoc-F5-Phe-DAP). Specifically, we demonstrate release of four model proteins (ribonuclease A (RNase A), trypsin inhibitor (TI), bovine serum albumin (BSA), and human immunoglobulin G (IgG)) from these hydrogels. The emergent viscoelastic properties of these materials are characterized, and the functional and time-dependent release of proteins from the hydrogels is demonstrated. In addition, it is shown that the properties of the aqueous solution used for hydrogel formulation have a significant influence on the in vitro release profiles, as a function of the isoelectric point and molecular weight of the protein payloads. These studies collectively validate that this class of supramolecular LMW hydrogel possesses the requisite properties for the sustained and localized release of protein therapeutics.
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Affiliation(s)
- Melissa
L. Jagrosse
- Department
of Chemistry, University of Rochester, Rochester, New York14627, United States
| | - Pamela Agredo
- Department
of Chemistry, University of Rochester, Rochester, New York14627, United States
| | - Brittany L. Abraham
- Department
of Chemistry, University of Rochester, Rochester, New York14627, United States
| | - Ethan S. Toriki
- Department
of Chemistry, University of Rochester, Rochester, New York14627, United States
| | - Bradley L. Nilsson
- Department
of Chemistry, University of Rochester, Rochester, New York14627, United States,Materials
Science Program, University of Rochester, Rochester, New York14627, United States,. Tel: +1 585 276-3053
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38
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Yamasaki K, Teshima H, Yukizawa R, Kuyama K, Tsukigawa K, Nishi K, Otagiri M, Kawai A. Structural Basis of the Change in the Interaction Between Mycophenolic Acid and Subdomain IIA of Human Serum Albumin During Renal Failure. J Med Chem 2023; 66:951-961. [PMID: 36538495 DOI: 10.1021/acs.jmedchem.2c01790] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Mycophenolic acid (MP) is an active metabolite of mycophenolate mofetil, a widely used immunosuppressive drug. MP normally exhibits high plasma protein binding (97-99%), but its binding rate is decreased in patients with renal insufficiency. This decreased protein binding is thought to be associated with leukopenia, a side effect of MP. In this study, we characterized the change in protein binding of MP in renal failure patients. Our findings indicate that MP binds strongly to subdomain IIA of human serum albumin. X-ray crystallographic data indicated that the isobenzofuran group of MP forms a stacking interaction with Trp214, and the carboxyl group of MP is located at a position that allows the formation of hydrogen bonds with Tyr150, His242, or Arg257. Due to the specific binding of MP to subdomain IIA, MP is thought to be displaced by uremic toxin (3-carboxy-4-methyl-5-propyl-2-furan-propionic acid) and fatty acids (oleate or myristate) that can bind to subdomain IIA, resulting in the decreased plasma protein binding of MP in renal failure.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto860-0082, Japan
| | - Honoka Teshima
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
| | - Reina Yukizawa
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
| | - Koki Kuyama
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto860-0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto860-0082, Japan
| | - Akito Kawai
- Department of Microbiology, Fujita Health University School of Medicine, Toyoake, Aichi470-1192, Japan
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Owczarzy A, Rogóż W, Kulig K, Pożycka J, Zięba A, Maciążek-Jurczyk M. Spectroscopic Studies of Quinobenzothiazine Derivative in Terms of the In Vitro Interaction with Selected Human Plasma Proteins: Part 2. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020698. [PMID: 36677755 PMCID: PMC9865466 DOI: 10.3390/molecules28020698] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/14/2022] [Accepted: 01/05/2023] [Indexed: 01/12/2023]
Abstract
Synthesis of anticancer substances and studying their binding abilities towards human serum proteins as carriers are important parts of pharmaceutical and medical sciences development. The presented work is a continuation of studies of quinobenzothiazine derivatives binding with serum proteins. The main aim of this work was a spectroscopic analysis of second from benzothiazinium derivatives salt, 9-fluoro-5-alkyl-12(H)-quino [3,4-b][1,4]benzothiazinium chloride (Salt2), its interaction with carrier proteins, i.e., human serum albumin (HSA), α1-acid glycoprotein (AGP), human gamma globulin (HGG), and the study of protein secondary and tertiary structure changes using spectroscopic techniques (spectrofluorescence, UV-Vis and circular dichroism CD spectroscopy). In order to mimic in vivo conditions, control normal serum (CNS) was used. Using the Klotz method, both binding constants (Ka [M-1]) and the number of binding classes (n) were calculated. In addition, the percentage of displacement of binding site markers from HSA and AGP molecules has been defined. Based on the obtained data, it can be concluded that the main binding protein for Salt2 is AGP. HSA and HGG are also involved in the distribution of the studied substance in the bloodstream. Moreover, Salt2 very slightly interacts with CNS, which can cause strong therapeutic as well as toxic effects. The analysis of CD spectra confirms that there are no changes in the secondary structure of the main binding proteins in the presence of Salt2.
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Affiliation(s)
- Aleksandra Owczarzy
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Wojciech Rogóż
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Karolina Kulig
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Jadwiga Pożycka
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Andrzej Zięba
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
| | - Małgorzata Maciążek-Jurczyk
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
- Correspondence: ; Tel.: +48-32-364-1582
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Sapmaz H, Erkmen C, Kabır MZ, Tayyab H, Mohamad SB, Uslu B. Spectrofluorometric and computational approaches for the interaction studies of aclonifen and bifenox with human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 284:121772. [PMID: 36030670 DOI: 10.1016/j.saa.2022.121772] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/06/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Interaction of two broadly used herbicides, aclonifen (ACF) and bifenox (BIF) with the major transporter in human circulation, human serum albumin (HSA) were examined using fluorescence and absorption spectral measurements combined with in silico analyses. Assessment of the fluorescence and absorption spectral results affirmed the complexation between ACF/BIF and HSA. Increase in the KSV value with temperature characterized the ACF/BIF-induced quenching of the protein fluorescence as dynamic quenching. The moderate binding affinities (Kf = 1.74×104 - 1.95×106 M-1 for ACF-HSA complex; Kf = 2.00×103 - 1.02×106 M-1 for BIF-HSA complex) were pointed out between ACF/BIF and HSA, showing a relatively higher binding constant values with increasing temperatures. Quantitative evaluation of thermodynamic data (ΔS = +0.86 kJ mol-1 K-1 and ΔH = +225.43 kJ mol-1 for ACF-HSA complex; ΔS = +1.11 kJ mol-1 K-1 and ΔH = +304.63 kJ mol-1 for BIF-HSA complex) predicted the contribution of hydrophobic interactions in the ACF-HSA and BIF-HSA association processes, which were well supported by our molecular docking results. In silico analyses were made to acquire insight details into the ACF and BIF binding to HSA at the binding sites and suggested the locations of ACF and BIF binding sites as both subdomain IIA (site I) and subdomain IIIA (site II) of HSA, showing more preference toward site I.
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Affiliation(s)
- Hilal Sapmaz
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Turkey; Ankara University, The Graduate School of Health Sciences, Forensic Pharmacy, 06110 Ankara, Turkey
| | - Cem Erkmen
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Turkey
| | - Md Zahirul Kabır
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Turkey
| | - Hafsa Tayyab
- Faculty of Science, Bioinformatics Programme, Institute of Biological Sciences, University of Malaya, Kuala Lumpur, Malaysia
| | - Saharuddin B Mohamad
- Faculty of Science, Bioinformatics Programme, Institute of Biological Sciences, University of Malaya, Kuala Lumpur, Malaysia; Centre of Research for Computational Sciences and Informatics for Biology, Bioindustry, Environment, Agriculture and Healthcare, University of Malaya, Kuala Lumpur, Malaysia
| | - Bengi Uslu
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Turkey.
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Mo L, He W, Tang Y, Liang D, Yang C, Lin W. A novel 1,8-naphthalimide-based fluorescent chemosensor for the detection of HSA in living cells. LUMINESCENCE 2023; 38:83-88. [PMID: 36494185 DOI: 10.1002/bio.4421] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 11/06/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022]
Abstract
Human serum albumin (HSA) is an essential protein for maintaining human health. Accurate detection and quantification of HSA are of great significance for disease diagnosis and biochemical research. Here, a new HSA fluorescent probe BNPE based on the 1,8-naphthalimide fluorophore was designed and synthesized. The probe could recognize HSA through a twisted intramolecular charge transfer mechanism, effectively avoid the interference of most substances, and realize HSA fluorescence imaging in living cells.
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Affiliation(s)
- Liuting Mo
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, China
| | - Wanqi He
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, China
| | - Yonghe Tang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, China
| | - Danlian Liang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, China
| | - Chan Yang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, China
| | - Weiying Lin
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, China
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Tayyab S, Rehman F, Abubakar M, Ridzwan NF, Mohamed SB, Halim AAA. Deciphering the Binding Mode and Structural Perturbations in Floxuridine-Human Serum Albumin Complexation with Spectroscopic, Microscopic, and Computational Techniques.. [DOI: 10.2139/ssrn.4512714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Yeggoni DP, Dubey S, Mohammad YZ, Rachamallu A, Subramanyam R. Elucidation of binding mechanism of stigmasterol with human serum albumin: a biophysical and molecular dynamics simulation approach. J Biomol Struct Dyn 2022; 40:12135-12147. [PMID: 34463217 DOI: 10.1080/07391102.2021.1968498] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In the present study, we have analyzed the interaction of a phytochemical, stigmasterol (Stig), with human serum albumin (HSA) under physiological conditions using fluorescence quenching, circular dichroism and molecular modeling methods. Cytotoxic studies with Stig in mouse macrophages (RAW 246.7) and HeLa cell lines showed anti-inflammatory and anti-cancer properties. Further, the intrinsic fluorescence of HSA was quenched by Stig, which was considered a static quenching mechanism. The site-specific marker experiments revealed that Stig binds to the IIIA subdomain of HSA with a binding constant of KStig=1.8 ± 0.03 × 105 M-1 and free energy of -7.26 ± 0.031 Kcal/mol. The secondary structure of HSA was partially unfolded after binding of Stig, which indicates an alteration in the microenvironment of the protein binding site. Molecular docking experiments found that Stig binds strongly with HSA at the IIIA domain of the hydrophobic pocket with one hydrogen bond. The rigidity of the protein-Stig complex and free energies were analyzed by molecular dynamic simulation (MDS) for 100 ns, where the HSA-Stig was stabilized after 40 ns. MDS studies revealed that HSA does not significantly change the secondary structure when it binds with Stig, which is in agreement with the circular dichroism data. Overall, the results obtained gave qualitative and quantitative insight into the binding interaction between HSA and Stig, which is essential in understanding the latter as a therapeutic molecule.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Shreya Dubey
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Yusuf Zamal Mohammad
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | | | - Rajagopal Subramanyam
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, India
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Impact of Albumin Binding Function on Pharmacokinetics and Pharmacodynamics of Furosemide. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58121780. [PMID: 36556982 PMCID: PMC9787406 DOI: 10.3390/medicina58121780] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/26/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
Background and Objectives: Albumin binding of the loop diuretic furosemide forms the basis for its transport to the kidney and subsequent tubular secretion, which is a prerequisite for its therapeutic effects. Accordingly, high albumin concentrations should result in higher efficacy of furosemide. However, study results on the combination of furosemide in conjunction with albumin, and on the efficacy of furosemide in hypoalbuminemia, did not confirm this hypothesis. The aim of this study was to determine the efficacy of furosemide not only in relation to albumin concentration, but also taking albumin function into account. Materials and Methods: In a prospective and non-interventional clinical observational trial, blood and urine samples from 50 intensive care patients receiving continuous intravenous furosemide therapy were evaluated. Albumin binding capacity (ABiC) determination allowed conclusions to be drawn about the binding site-specific loading state of albumin, by quantifying the unbound fraction of the fluorescent marker dansylsarcosine. In addition, assessment of the total concentration of furosemide in plasma and urine, as well as the concentration of free furosemide fraction in plasma, was performed by HPLC−MS. The efficacy of furosemide was evaluated by the ratio of urine excretion to fluid intake. Results: In patients with an ABiC ≥ 60% free furosemide fraction was significantly lower compared to patients with a lower ABiC (p < 0.001), urinary furosemide concentration was higher (p = 0.136), and a significantly higher proportion of infused furosemide was excreted renally (p = 0.010). ABiC was positively correlated (r = 0.908, p = 0.017) with increase in the urine excretion to fluid input ratio after initiation of furosemide therapy. Conclusions: ABiC could serve as a marker for individual response to furosemide and could be used to generate patient-specific therapeutic regimens. In view of the relatively low number of patients in this study, the relationship between furosemide efficacy and albumin function should be investigated in larger studies in the future.
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45
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Tian Y, Li C, Zeng F, Yu C, Xia Z, Huang Y. Study the interactions between multiple flavonoids and bovine serum albumin by the developed equilibrium dialysis. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1212:123515. [DOI: 10.1016/j.jchromb.2022.123515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 09/13/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022]
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Exploring Molecular Interaction of Cefpirome with Human Serum Albumin: in vitro and in silico Approaches. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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47
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Nirwal S, Saravanan P, Bajpai A, Meshram VD, Raju G, Deeksha W, Prabusankar G, Patel BK. In Vitro Interaction of a C-Terminal Fragment of TDP-43 Protein with Human Serum Albumin Modulates Its Aggregation. J Phys Chem B 2022; 126:9137-9151. [PMID: 36326054 DOI: 10.1021/acs.jpcb.2c04469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
An increased level of naturally occurring anti-TDP-43 antibodies was observed in the serum and cerebrospinal fluid (CSF) of amyotrophic lateral sclerosis patients. Human serum albumin (HSA), the most abundant protein in blood plasma and CSF, is found to interact with pathological proteins like Aβ and α-synuclein. Therefore, we examined the effect on the in vitro aggregation of a C-terminal fragment of TDP-43 in the presence of HSA. We found that the lag phase in TDP-432C aggregation is abrogated in the presence of HSA, but there is an overall decreased aggregation as examined by thioflavin-T fluorescence spectroscopy and microscopy. An early onset of TDP-432C oligomer formation in the presence of HSA was observed using atomic force microscopy and transmission electron microscopy. Also, a known chemical inhibitor of TDP-432Caggregation, AIM4, abolishes the HSA-induced early formation of TDP-432C oligomers. Notably, the aggregates of TDP-432C formed in the presence of HSA are more stable against sarkosyl detergent. Using affinity copurification, we observed that HSA can bind to TDP-432C, and biolayer interferometry further supported their physical interaction and suggested the binding affinity to be in sub-micromolar range. Taken together, the data support that HSA can interact with TDP-432C in vitro and affect its aggregation.
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Affiliation(s)
- Sadhana Nirwal
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
| | - Preethi Saravanan
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
| | - Akarsh Bajpai
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
| | - Vini D Meshram
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
| | - Gembali Raju
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi Sangareddy, Telangana 502284, India
| | - Waghela Deeksha
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
| | - Ganesan Prabusankar
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi Sangareddy, Telangana 502284, India
| | - Basant K Patel
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
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Iftekhar S, Li Z, Tao P, Poddar S, Hage DS. Analysis of the binding of warfarin to glyoxal- and methylglyoxal-modified human serum albumin by ultrafast affinity extraction. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1211:123500. [PMID: 36272357 PMCID: PMC10015259 DOI: 10.1016/j.jchromb.2022.123500] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/04/2022] [Accepted: 10/07/2022] [Indexed: 11/29/2022]
Abstract
Ultrafast affinity extraction (UAE) and affinity microcolumns containing immobilized human serum albumin (HSA) were employed to evaluate the effect of advanced stage glycation on HSA and its binding to warfarin, a common site-specific probe for Sudlow site I of this protein. The modification of HSA by glyoxal (GO) and methylglyoxal (MGO) was considered, where GO and MGO are known to be important in the formation of many types of advanced glycation end products. Free drug fractions were measured by UAE for warfarin in solutions containing normal HSA or HSA that had been modified by GO or MGO at levels seen in serum during diabetes. The free fractions measured with the GO-modified HSA gave association equilibrium constants that ranged from 2.42-2.63 × 105 M-1 at pH 7.4 and 37 °C. These values were not significantly different from a value of 2.33 (±0.15) × 105 M-1 that was determined by the same method for warfarin with normal HSA. Similar studies using MGO-modified HSA gave association equilibrium constants for warfarin in the range of 3.07-3.31 × 105 M-1, which were 1.32- to 1.42-fold higher than the value seen for normal HSA (differences that were significant at the 95% confidence level). These results will be valuable in future binding studies based on affinity chromatography or other methods that employ warfarin as a probe to examine drug interactions at Sudlow site I of HSA and modified forms of this protein. This work also illustrates how UAE can be used, with analysis times of only minutes, to detect and measure small changes in the binding by drugs with unmodified or modified forms of a soluble binding agent or protein.
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Affiliation(s)
- Sazia Iftekhar
- Department of Chemistry, University of Nebraska-Lincoln, USA
| | - Zhao Li
- Department of Chemistry, University of Nebraska-Lincoln, USA
| | - Pingyang Tao
- Department of Chemistry, University of Nebraska-Lincoln, USA
| | - Saumen Poddar
- Department of Chemistry, University of Nebraska-Lincoln, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska-Lincoln, USA.
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Abubakar M, Kandandapani S, Mohamed SB, Azizah Abd Halim A, Tayyab S. Shedding light on the Molecular Interaction Between the Hepatitis B Virus Inhibitor, Clevudine, and Human Serum Albumin: Thermodynamic, Spectroscopic, Microscopic, and In Silico Analyses. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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50
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Ullah A, Kwon HT, Lim SI. Albumin: A Multi-talented Clinical and Pharmaceutical Player. BIOTECHNOL BIOPROC E 2022. [DOI: 10.1007/s12257-022-0104-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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