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Yang D, Zhang S, Cao H, Wu H, Liang Y, Teng CB, Yu HF. Detoxification of Aflatoxin B 1 by Phytochemicals in Agriculture and Food Science. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38897919 DOI: 10.1021/acs.jafc.4c01796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Aflatoxin B1 (AFB1), the most toxic and harmful mycotoxin, has a high likelihood of occurring in animal feed and human food, which seriously affects agriculture and food safety and endangers animal and human health. Recently, natural plant products have attracted widespread attention due to their low toxicity, high biocompatibility, and simple composition, indicating significant potential for resisting AFB1. The mechanisms by which these phytochemicals resist toxins mainly involve antioxidative, anti-inflammatory, and antiapoptotic pathways. Moreover, these substances also inhibit the genotoxicity of AFB1 by directly influencing its metabolism in vivo, which contributes to its elimination. Here, we review various phytochemicals that resist AFB1 and their anti-AFB1 mechanisms in different animals, as well as the common characteristics of phytochemicals with anti-AFB1 function. Additionally, the shortcomings of current research and future research directions will be discussed. Overall, this comprehensive summary contributes to the better application of phytochemicals in agriculture and food safety.
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Affiliation(s)
- Dian Yang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Sihua Zhang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Hongda Cao
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Huan Wu
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Yang Liang
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Chun-Bo Teng
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Hai-Fan Yu
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, College of Life Science, Northeast Forestry University, Harbin 150040, China
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Todorović N, Čanji Panić J, Pavlić B, Popović S, Ristić I, Rakić S, Rajšić I, Vukmirović S, Srđenović Čonić B, Milijašević B, Milošević N, Lalić-Popović M. Supercritical fluid technology as a strategy for nifedipine solid dispersions formulation: In vitro and in vivo evaluation. Int J Pharm 2024; 649:123634. [PMID: 38000651 DOI: 10.1016/j.ijpharm.2023.123634] [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: 08/14/2023] [Revised: 11/07/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023]
Abstract
Supercritical fluid technology (SFT) is an insufficiently investigated approach for the production of solid dispersions, it is environmentally acceptable and has a high potential for application in the pharmaceutical industry. The aim of this work was to formulate and characterize nifedipine solid dispersions (SDs) produced by the SFT and compare the results with ones obtained by the classical solvent based kneading method. The following in vitro tests were conducted: assay and yield, solvent residues, solid state characterization (FTIR, DSC, XRD), flowability, hygroscopicity, solubility, dissolution and stability. Additionally, bioavailability was examined on an animal model (Wistar rats). The formulation selection for in vivo study was performed using the multilevel categoric experimental design and the health risk assessment. Solid state characterization revealed that formulation obtained by the SFT method and higher ratio of polymer (1:5) have had nifedipine in completely amorphous form. Polymer ratio and method of SDs preparation do influence the investigation characteristics. Dissolution rate was fastest in SDs prepared by the SFT and higher polymer ration (1:5). In vivo data of selected SDs prepared by the kneading (ratio 1:1) and the SFT (ratio 1:5) showed alteration in pharmacokinetic profile after i.v. and p.o. application.
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Affiliation(s)
- Nemanja Todorović
- University of Novi Sad, Faculty of Medicine Novi Sad, Department of Pharmacy, Hajduk Veljkova 3, 21000 Novi Sad, Republic of Serbia
| | - Jelena Čanji Panić
- University of Novi Sad, Faculty of Medicine Novi Sad, Department of Pharmacy, Hajduk Veljkova 3, 21000 Novi Sad, Republic of Serbia
| | - Branimir Pavlić
- University of Novi Sad, Faculty of Technology Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Republic of Serbia
| | - Senka Popović
- University of Novi Sad, Faculty of Technology Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Republic of Serbia
| | - Ivan Ristić
- University of Novi Sad, Faculty of Technology Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Republic of Serbia
| | - Srđan Rakić
- University of Novi Sad, Faculty of Sciences, Department of Physics, Trg Dositeja Obradovića 4, 21000 Novi Sad, Republic of Serbia
| | - Ivana Rajšić
- University of Novi Sad, Faculty of Medicine Novi Sad, Department of Pharmacology and Toxicology, Hajduk Veljkova 3, 21000 Novi Sad, Republic of Serbia
| | - Saša Vukmirović
- University of Novi Sad, Faculty of Medicine Novi Sad, Department of Pharmacology and Toxicology, Hajduk Veljkova 3, 21000 Novi Sad, Republic of Serbia
| | - Branislava Srđenović Čonić
- University of Novi Sad, Faculty of Medicine Novi Sad, Department of Pharmacy, Hajduk Veljkova 3, 21000 Novi Sad, Republic of Serbia; University of Novi Sad, Faculty of Medicine Novi Sad, Centre for Medical and Pharmaceutical Investigations and Quality Control (CEMPhIC), Hajduk Veljkova 3, 21000 Novi Sad, Republic of Serbia
| | - Boris Milijašević
- University of Novi Sad, Faculty of Medicine Novi Sad, Department of Pharmacology and Toxicology, Hajduk Veljkova 3, 21000 Novi Sad, Republic of Serbia
| | - Nataša Milošević
- University of Novi Sad, Faculty of Medicine Novi Sad, Department of Pharmacy, Hajduk Veljkova 3, 21000 Novi Sad, Republic of Serbia
| | - Mladena Lalić-Popović
- University of Novi Sad, Faculty of Medicine Novi Sad, Department of Pharmacy, Hajduk Veljkova 3, 21000 Novi Sad, Republic of Serbia; University of Novi Sad, Faculty of Medicine Novi Sad, Centre for Medical and Pharmaceutical Investigations and Quality Control (CEMPhIC), Hajduk Veljkova 3, 21000 Novi Sad, Republic of Serbia.
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3
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Qureshi MA, Amir M, Khan RH, Musarrat J, Javed S. Glycation reduces the binding dynamics of aflatoxin B 1 to human serum albumin: a comprehensive spectroscopic and computational investigation. J Biomol Struct Dyn 2023; 41:14797-14811. [PMID: 37021366 DOI: 10.1080/07391102.2023.2194000] [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: 01/04/2023] [Accepted: 02/25/2023] [Indexed: 04/07/2023]
Abstract
Aflatoxin B1 (AFB1), a potent mutagen, is synthesized by Aspergillus parasiticus and Aspergillus flavus. Human serum albumin (HSA) is a globular protein with diverse roles. As AFB1 is ingested with food and is transported in the body via blood, it becomes pertinent to comprehend the effect of the binding of this toxin on the structure and conformation of HSA, which may help to get insight into the toxic effect of the exposure of the mycotoxin. In this study, multi-spectroscopic approaches have been used to evaluate the binding efficiency of AFB1 with both the native HSA (nHSA) and the glycated HSA (gHSA). Steady-state fluorescence spectroscopy reveals the static type of fluorescence quenching in the fluorescence emission spectra of nHSA and gHSA in the presence of AFB1. The binding constant (Kb) is calculated to be 6.88 × 104 M-1 for nHSA, while a reduced Kb value of 2.95 × 104 M-1 has been obtained for gHSA. The circular dichroism study confirms the change in the secondary structure of nHSA and gHSA in the presence of AFB1, followed by alterations in the melting temperature (Tm) of nHSA and gHSA. In silico computational findings envisaged the amino acid residues and bonds involved in the binding of nHSA and gHSA with AFB1. The comprehensive study analyzes the binding effectiveness of AFB1 with nHSA and gHSA and shows reduced binding of AFB1 to gHSA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mohd Aamir Qureshi
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Mohd Amir
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Javed Musarrat
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, India
| | - Saleem Javed
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
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Gu J, Liu H, Huang X, Ma Y, Zhang L. Investigation of the separate and simultaneous bindings of warfarin and fenofibrate to bovine serum albumin. Int J Biol Macromol 2023; 236:123978. [PMID: 36906198 DOI: 10.1016/j.ijbiomac.2023.123978] [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: 11/23/2022] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 03/12/2023]
Abstract
Lipid-lowering drugs are often taken with anticoagulant drugs in hyperlipidemia patients. Fenofibrate (FNBT) and warfarin (WAR) are common clinical lipid-lowering drugs and anticoagulant drugs, respectively. A study of binding affinity, binding force, binding distance, and binding sites was performed to determine the interaction mechanism between drugs and carrier proteins (bovine serum albumin, BSA), as well as their effects on BSA conformation. Both FNBT and WAR can form complexes with BSA by van der Waals force and hydrogen bonds. WAR had a stronger fluorescence quenching effect on BSA, a stronger binding affinity, and greater effects on BSA conformation than FNBT. According to fluorescence spectroscopy and cyclic voltammetry, co-administration of drugs decreased one drug's binding constant to BSA and increased its binding distance. This suggested that each drug's binding to BSA was disturbed by each other, as well as each drug's binding ability to BSA was altered by the other. It was demonstrated that co-administration of drugs had greater effects on the secondary structure of BSA and microenvironment polarity surrounding amino acid residues, using multiple spectroscopy techniques, such as ultraviolet spectroscopy, Fourier transform infrared spectroscopy, and synchronous fluorescence spectroscopy.
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Affiliation(s)
- Jiali Gu
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, PR China.
| | - Hongrui Liu
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, PR China
| | - Xiyao Huang
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, PR China
| | - Yanxuan Ma
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, PR China
| | - Liang Zhang
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, PR China
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5
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Triptolide and methotrexate binding competitively to bovine serum albumin: A study of spectroscopic experiments, molecular docking, and molecular dynamic simulation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Fabijanić I, Jurković M, Jakšić D, Piantanida I. Photoluminescent Gold/BSA Nanoclusters (AuNC@BSA) as Sensors for Red-Fluorescence Detection of Mycotoxins. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8448. [PMID: 36499945 PMCID: PMC9740986 DOI: 10.3390/ma15238448] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
The BSA-encapsulated gold nanoclusters (AuNC@BSA) have drawn considerable interest and demonstrated applications as biological sensors. In this study, we demonstrated that the red-emitting AuNC@BSA prepared using a modified procedure fully retained the binding of standard BSA-ligands (small molecule drugs), significantly improving fluorescence detection in some cases due to the red-emission property. Further, we showed that AuNC@BSA efficiently bind a series of aflatoxin-related mycotoxins as well as the aliphatic mycotoxin FB1, reporting interactions in the nanomolar range by instantaneous emission change at 680 nm. Such red emission detection is advantageous over current detection strategies for the same mycotoxins, based on complex mass spectrometry procedures or, eventually (upon chemical modification of the mycotoxin), by fluorescence detection in the UV range (<400 nm). The later technique yields fluorescence strongly overlapping with the intrinsic absorption and emission of biorelevant mixtures in which mycotoxins appear. Thus, here we present a new approach using the AuNC@BSA red fluorescence reporter for mycotoxins as a fast, cheap, and simple detection technique that offers significant advantages over currently available methods.
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Affiliation(s)
- Ivana Fabijanić
- Division of Organic Chemistry and Biochemistry, Laboratory for Biomolecular Interactions and Spectroscopy, Ruđer Bošković Institute, 10002 Zagreb, Croatia
| | - Marta Jurković
- Division of Organic Chemistry and Biochemistry, Laboratory for Biomolecular Interactions and Spectroscopy, Ruđer Bošković Institute, 10002 Zagreb, Croatia
| | - Daniela Jakšić
- Department of Microbiology, Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia
| | - Ivo Piantanida
- Division of Organic Chemistry and Biochemistry, Laboratory for Biomolecular Interactions and Spectroscopy, Ruđer Bošković Institute, 10002 Zagreb, Croatia
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7
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Rasouli H, Nayeri FD, Khodarahmi R. May phytophenolics alleviate aflatoxins-induced health challenges? A holistic insight on current landscape and future prospects. Front Nutr 2022; 9:981984. [PMID: 36386916 PMCID: PMC9649842 DOI: 10.3389/fnut.2022.981984] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/26/2022] [Indexed: 12/24/2022] Open
Abstract
The future GCC-connected environmental risk factors expedited the progression of nCDs. Indeed, the emergence of AFs is becoming a global food security concern. AFs are lethal carcinogenic mycotoxins, causing damage to the liver, kidney, and gastrointestinal organs. Long-term exposure to AFs leads to liver cancer. Almost a variety of food commodities, crops, spices, herbaceous materials, nuts, and processed foods can be contaminated with AFs. In this regard, the primary sections of this review aim to cover influencing factors in the occurrence of AFs, the role of AFs in progression of nCDs, links between GCC/nCDs and exposure to AFs, frequency of AFs-based academic investigations, and world distribution of AFs. Next, the current trends in the application of PPs to alleviate AFs toxicity are discussed. Nearly, more than 20,000 published records indexed in scientific databases have been screened to find recent trends on AFs and application of PPs in AFs therapy. Accordingly, shifts in world climate, improper infrastructures for production/storage of food commodities, inconsistency of global polices on AFs permissible concentration in food/feed, and lack of the public awareness are accounting for a considerable proportion of AFs damages. AFs exhibited their toxic effects by triggering the progression of inflammation and oxidative/nitrosative stress, in turn, leading to the onset of nCDs. PPs could decrease AFs-associated oxidative stress, genotoxic, mutagenic, and carcinogenic effects by improving cellular antioxidant balance, regulation of signaling pathways, alleviating inflammatory responses, and modification of gene expression profile in a dose/time-reliant fashion. The administration of PPs alone displayed lower biological properties compared to co-treatment of these metabolites with AFs. This issue might highlight the therapeutic application of PPs than their preventative content. Flavonoids such as quercetin and oxidized tea phenolics, curcumin and resveratrol were the most studied anti-AFs PPs. Our literature review clearly disclosed that considering PPs in antioxidant therapies to alleviate complications of AFs requires improvement in their bioavailability, pharmacokinetics, tissue clearance, and off-target mode of action. Due to the emergencies in the elimination of AFs in food/feedstuffs, further large-scale clinical assessment of PPs to decrease the consequences of AFs is highly required.
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Affiliation(s)
- Hassan Rasouli
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fatemeh Dehghan Nayeri
- Department of Biotechnology, Faculty of Agricultural and Natural Sciences, Imam Khomeini International University (IKIU), Qazvin, Iran
| | - Reza Khodarahmi
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
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8
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Quercetin: Its Antioxidant Mechanism, Antibacterial Properties and Potential Application in Prevention and Control of Toxipathy. Molecules 2022; 27:molecules27196545. [PMID: 36235082 PMCID: PMC9571766 DOI: 10.3390/molecules27196545] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 11/30/2022] Open
Abstract
Quercetin, as a flavonol compound found in plants, has a variety of biological activities. It is widely present in nature and the human diet, with powerful oxidative properties and biological activities. In this review, the antioxidant mechanism and broad-spectrum antibacterial properties of quercetin are revealed; the intervention effects of quercetin on pesticide poisoning and the pathway of action are investigated; the toxic effects of main mycotoxins on the collection and the detoxification process of quercetin are summarized; whether it is able to reduce the toxicity of mycotoxins is proved; and the harmful effects of heavy metal poisoning on the collection, the prevention, and control of quercetin are evaluated. This review is expected to enrich the understanding of the properties of quercetin and promote its better application in clinical practice.
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Li Y, Tan H, Zhou H, Guo T, Zhou Y, Zhang Y, Liu X, Ma L. Study of Competitive Displacement of Curcumin on α-zearalenol Binding to Human Serum Albumin Complex Using Fluorescence Spectroscopy. Toxins (Basel) 2022; 14:toxins14090604. [PMID: 36136542 PMCID: PMC9501389 DOI: 10.3390/toxins14090604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/22/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
α-zearalenol (α-ZOL) is a mycotoxin with a strong estrogen effect that affects the synthesis and secretion of sex hormones and is transported to target organs through human serum albumin (HSA). Additionally, it has been reported that curcumin can also bind to HSA with high affinity at the same binding site as α-ZOL. Additionally, several studies reported that reducing the bound fraction of α-ZOL contributes to speeding up the elimination rate of α-ZOL to reduce its hazard to organs. Therefore, to explore the influence of a nutrition intervention with curcumin on α-ZOL effects, the competitive displacement of α-ZOL from HSA by curcumin was investigated using spectroscopic techniques, ultrafiltration techniques and HPLC methods. Results show that curcumin and α-ZOL share the same binding site (subdomain IIA) on HSA, and curcumin binds to HSA with a binding constant of 1.12 × 105 M−1, which is higher than that of α-ZOL (3.98 × 104 M−1). Ultrafiltration studies demonstrated that curcumin could displace α-ZOL from HSA to reduce α-ZOL’s binding fraction. Synchronous fluorescence spectroscopy revealed that curcumin could reduce the hydrophobicity of the microenvironment of an HSA–α-ZOL complex. This study is of great significance for applying curcumin and other highly active foodborne components to interfere with the toxicokinetics of α-ZOL and reduce its risk of its exposure.
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Affiliation(s)
- Yifang Li
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Hongxia Tan
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Hongyuan Zhou
- College of Food Science, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China
| | - Ting Guo
- College of Food Science, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China
| | - Ying Zhou
- College of Food Science, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China
| | - Yuhao Zhang
- College of Food Science, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Southwest University, Ministry of Education, Chongqing 400715, China
- Key Laboratory of Condiment Supervision Technology for State Market Regulation, Chongqing 400715, China
| | - Xiaozhu Liu
- Foshan Micro Miracles Biotechnology Company, Foshan 528000, China
| | - Liang Ma
- College of Food Science, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
- Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing 400712, China
- Key Laboratory of Condiment Supervision Technology for State Market Regulation, Chongqing 400715, China
- Correspondence: or ; Tel.: +86-1310-1282-977
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Ovung A, Mavani A, Ghosh A, Chatterjee S, Das A, Suresh Kumar G, Ray D, Aswal VK, Bhattacharyya J. Heme Protein Binding of Sulfonamide Compounds: A Correlation Study by Spectroscopic, Calorimetric, and Computational Methods. ACS OMEGA 2022; 7:4932-4944. [PMID: 35187312 PMCID: PMC8851458 DOI: 10.1021/acsomega.1c05554] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 01/24/2022] [Indexed: 05/16/2023]
Abstract
Protein-ligand interaction studies are useful to determine the molecular mechanism of the binding phenomenon, leading to the establishment of the structure-function relationship. Here, we report the binding of well-known antibiotic sulfonamide drugs (sulfamethazine, SMZ; and sulfadiazine, SDZ) with heme protein myoglobin (Mb) using spectroscopic, calorimetric, ζ potential, and computational methods. Formation of a 1:1 complex between the ligand and Mb through well-defined equilibrium was observed. The binding constants obtained between Mb and SMZ/SDZ drugs were on the order of 104 M-1. SMZ with two additional methyl (-CH3) substitutions has higher affinity than SDZ. Upon drug binding, a notable loss in the helicity (via circular dichroism) and perturbation of the three-dimensional (3D) protein structure (via infrared and synchronous fluorescence experiments) were observed. The binding also indicated the dominance of non-polyelectrolytic forces between the amino acid residues of the protein and the drugs. The ligand-protein binding distance signified high probability of energy transfer between them. Destabilization of the protein structure upon binding was evident from differential scanning calorimetry results and ζ potential analyses. Molecular docking presented the best probable binding sites of the drugs inside protein pockets. Thus, the present study explores the potential binding characteristics of two sulfonamide drugs (with different substitutions) with myoglobin, correlating the structural and energetic aspects.
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Affiliation(s)
- Aben Ovung
- Department
of Chemistry, National Institute of Technology
Nagaland, Chumukedima, Dimapur 797103, India
| | - A. Mavani
- Department
of Chemistry, National Institute of Technology
Nagaland, Chumukedima, Dimapur 797103, India
| | - Ambarnil Ghosh
- UCD
Conway Institute of Biomolecular & Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Sabyasachi Chatterjee
- Biophysical
Chemistry Laboratory, CSIR—Indian
Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700032, India
| | - Abhi Das
- Biophysical
Chemistry Laboratory, CSIR—Indian
Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700032, India
| | - Gopinatha Suresh Kumar
- Biophysical
Chemistry Laboratory, CSIR—Indian
Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700032, India
| | - Debes Ray
- Solid
State Physics Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
| | - Vinod K. Aswal
- Solid
State Physics Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
| | - Jhimli Bhattacharyya
- Department
of Chemistry, National Institute of Technology
Nagaland, Chumukedima, Dimapur 797103, India
- ,
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11
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Investigating binding dynamics of trans resveratrol to HSA for an efficient displacement of aflatoxin B1 using spectroscopy and molecular simulation. Sci Rep 2022; 12:2400. [PMID: 35165338 PMCID: PMC8844415 DOI: 10.1038/s41598-022-06375-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 01/19/2022] [Indexed: 01/22/2023] Open
Abstract
Resveratrol is a polyphenol belonging to the class stilbenes. The active and stable form of resveratrol is trans-resveratrol. This polyphenol is bestowed with numerous biological properties. Aflatoxin B1 is a hepato-carcinogen and mutagen that is produced by Aspergillus species. In this study, the interaction of trans-resveratrol with HSA followed by competitive dislodging of AFB1 from HSA by trans-resveratrol has been investigated using spectroscopic studies. The UV-absorption studies revealed ground state complex formation between HSA and trans-resveratrol. Trans-resveratrol binds strongly to HSA with the binding constant of ~ 107 M−1 to a single binding site (n = 1.58), at 298.15 K. The Stern–Volmer quenching constant was calculated as 7.83 × 104 M−1 at 298.15 K, suggesting strong fluorescence quenching ability of trans-resveratrol. Site markers displacement assay projected subdomain IIA as the binding site of trans-resveratrol to HSA. The molecular docking approach envisages the amino acid residues involved in the formation of the binding pocket. As confirmed from the site marker displacement assays, both trans-resveratrol and AFB1 binds to HSA in the same binding site, subdomain IIA. The study explores the ability of trans-resveratrol to displace AFB1 from the HSA-AFB1 complex, thereby affecting the toxicokinetic behavior of AFB1 associated with AFB1 exposure.
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Prasanthan P, Kishore N. Unusual human serum albumin fibrillation inhibition by ketoprofen and fenoprofen: Mechanistic insights. J Mol Recognit 2021; 34:e2937. [PMID: 34505308 DOI: 10.1002/jmr.2937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/10/2021] [Accepted: 08/21/2021] [Indexed: 11/07/2022]
Abstract
Development of efficient therapeutic strategies to combat protein misfolding and fibrillation is of great clinical significance. In the current study, efforts have been made to obtain qualitative and quantitative insights into interactions of anti-inflammatory drugs; ketoprofen and fenoprofen with the transport protein HSA and their inhibitory action on fibrillation by employing a combination of calorimetric, spectroscopic, microscopic, and molecular docking methods. Interestingly, both ketoprofen and fenoprofen are able to completely inhibit fibrillation of HSA when added at a concentration of 0.5 mM for fenoprofen or 1 mM ketoprofen. Further, no amorphous aggregates are formed. Isothermal titration calorimetric studies highlight the predominant role of polar interactions of these drugs with protein in prevention of fibrillation. The role of conformational flexibility of benzoyl and phenoxy groups of drugs has been correlated with inhibition efficiency. Such studies highlight the role of functionality required for an inhibitor in addressing neurodegenerative diseases.
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Affiliation(s)
- Pooja Prasanthan
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India
| | - Nand Kishore
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India
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Qureshi MA, Javed S. Aflatoxin B 1 Induced Structural and Conformational Changes in Bovine Serum Albumin: A Multispectroscopic and Circular Dichroism-Based Study. ACS OMEGA 2021; 6:18054-18064. [PMID: 34308039 PMCID: PMC8296610 DOI: 10.1021/acsomega.1c01799] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 06/23/2021] [Indexed: 05/15/2023]
Abstract
Aflatoxin B1 (AFB1) is a mutagen that has been categorized as a group 1 human carcinogen by the International Agency for Research on Cancer. It is produced as a secondary metabolite by soil fungi Aspergillus flavus and Aspergillus parasiticus . Here, in this study, the effect of AFB1 on the structure and conformation of bovine serum albumin (BSA) using multispectroscopic tools like fluorescence spectroscopy, ultraviolet-visible absorption spectroscopy, and circular dichroism spectropolarimetry has been ascertained. Ultraviolet absorption spectroscopy revealed hyperchromicity in the absorption spectra of BSA in the presence of AFB1. The binding constant was calculated in the range of 104 M-1, by fluorescence spectroscopy suggesting moderate binding of the toxin to BSA. The study also confirms the static nature of fluorescence quenching. The stoichiometry of binding sites was found to be unity. The competing capability of warfarin for AFB1 was higher than ibuprofen as calculated from site marker displacement assay. Förster resonance energy transfer confirmed the high efficiency of energy transfer from BSA to AFB1. Circular dichroism spectropolarimetry showed a decrease in the α-helix in BSA in the presence of AFB1. The melting temperature of BSA underwent an increment in the presence of a mycotoxin from 62.5 to 70.3 °C. Molecular docking confirmed the binding of AFB1 to subdomain IIA in BSA.
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Wani TA, Bakheit AH, Zargar S, Alanazi ZS, Al-Majed AA. Influence of antioxidant flavonoids quercetin and rutin on the in-vitro binding of neratinib to human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 246:118977. [PMID: 33017787 DOI: 10.1016/j.saa.2020.118977] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/14/2020] [Accepted: 09/16/2020] [Indexed: 06/11/2023]
Abstract
This study was designed to examine the interaction of neratinib (NRB) with human serum albumin (HSA) in presence of flavonoids quercetin and rutin. Both quercetin and rutin can compete with NRB to bind to HSA and displace NRB from its binding site. The interaction mechanism was studied with several spectroscopic techniques and molecular docking. Static fluorescence quenching mechanism was observed on interaction of HSA with NRB. van der Waals force and hydrogen bond were involved in the HSA-NRB interaction as per the results of thermodynamic parameters. Further, the conformational changes were observed in the HSA on its interaction with NRB. Interaction of NRB with HSA in presence of quercetin and rutin resulted in changes in the binding constants of HSA-NRB suggesting some impact on the binding of NRB in the presence of flavonoids.
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Affiliation(s)
- Tanveer A Wani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
| | - Ahmed H Bakheit
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Seema Zargar
- Department of Biochemistry, College of Science, King Saud University, PO Box 22452, Riyadh 11451, Saudi Arabia
| | - Zahi Saad Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Abdulrahman A Al-Majed
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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15
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Faisal Z, Vörös V, Fliszár-Nyúl E, Lemli B, Kunsági-Máté S, Poór M. Interactions of zearalanone, α-zearalanol, β-zearalanol, zearalenone-14-sulfate, and zearalenone-14-glucoside with serum albumin. Mycotoxin Res 2020; 36:389-397. [PMID: 32740802 PMCID: PMC7536148 DOI: 10.1007/s12550-020-00404-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/16/2020] [Accepted: 07/22/2020] [Indexed: 01/29/2023]
Abstract
The xenoestrogenic mycotoxin zearalenone is a Fusarium-derived food and feed contaminant. In mammals, the reduced (e.g., zearalanone, α-zearalanol, and β-zearalanol) and conjugated (e.g., zearalenone-14-sulfate) metabolites of zearalenone are formed. Furthermore, filamentous fungi and plants are also able to convert zearalenone to conjugated derivatives, including zearalenone-14-sulfate and zearalenone-14-glucoside, respectively. Serum albumin is the dominant plasma protein in the circulation; it interacts with certain mycotoxins, affecting their toxicokinetics. In a previous investigation, we demonstrated the remarkable species differences regarding the albumin binding of zearalenone and zearalenols. In the current study, the interactions of zearalanone, α-zearalanol, β-zearalanol, zearalenone-14-sulfate, and zearalenone-14-glucoside with human, bovine, porcine, and rat serum albumins were examined, employing fluorescence spectroscopy and affinity chromatography. Zearalanone, zearalanols, and zearalenone-14-sulfate form stable complexes with albumins tested (K = 9.3 × 103 to 8.5 × 105 L/mol), while the albumin binding of zearalenone-14-glucoside seems to be weak. Zearalenone-14-sulfate formed the most stable complexes with albumins examined. Considerable species differences were observed in the albumin binding of zearalenone metabolites, which may have a role in the interspecies differences regarding the toxicity of zearalenone.
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Affiliation(s)
- Zelma Faisal
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, Pécs, H-7624, Hungary
- János Szentágothai Research Centre, Ifjúság útja 20, Pécs, H-7624, Hungary
| | - Virág Vörös
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, Pécs, H-7624, Hungary
- János Szentágothai Research Centre, Ifjúság útja 20, Pécs, H-7624, Hungary
| | - Eszter Fliszár-Nyúl
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, Pécs, H-7624, Hungary
- János Szentágothai Research Centre, Ifjúság útja 20, Pécs, H-7624, Hungary
| | - Beáta Lemli
- János Szentágothai Research Centre, Ifjúság útja 20, Pécs, H-7624, Hungary
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Szigeti út 12, Pécs, H-7624, Hungary
| | - Sándor Kunsági-Máté
- János Szentágothai Research Centre, Ifjúság útja 20, Pécs, H-7624, Hungary
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Szigeti út 12, Pécs, H-7624, Hungary
| | - Miklós Poór
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, Pécs, H-7624, Hungary.
- János Szentágothai Research Centre, Ifjúság útja 20, Pécs, H-7624, Hungary.
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16
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Rimac H, Tandarić T, Vianello R, Bojić M. Indomethacin Increases Quercetin Affinity for Human Serum Albumin: A Combined Experimental and Computational Study and Its Broader Implications. Int J Mol Sci 2020; 21:ijms21165740. [PMID: 32785199 PMCID: PMC7460863 DOI: 10.3390/ijms21165740] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/06/2020] [Accepted: 08/08/2020] [Indexed: 12/17/2022] Open
Abstract
Human serum albumin (HSA) is the most abundant carrier protein in the human body. Competition for the same binding site between different ligands can lead to an increased active concentration or a faster elimination of one or both ligands. Indomethacin and quercetin both bind to the binding site located in the IIA subdomain. To determine the nature of the HSA-indomethacin-quercetin interactions, spectrofluorometric, docking, molecular dynamics studies, and quantum chemical calculations were performed. The results show that the indomethacin and quercetin binding sites do not overlap. Moreover, the presence of quercetin does not influence the binding constant and position of indomethacin in the pocket. However, binding of quercetin is much more favorable in the presence of indomethacin, with its position and interactions with HSA significantly changed. These results provide a new insight into drug-drug interactions, which can be important in situations when displacement from HSA or other proteins is undesirable or even desirable. This principle could also be used to deliberately prolong or shorten the xenobiotics' half-life in the body, depending on the desired outcomes.
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Affiliation(s)
- Hrvoje Rimac
- Department of Medicinal Chemistry, University of Zagreb Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia;
- Laboratory of Computational Modelling of Drugs, South Ural State University, 454008 Chelyabinsk, Russia
- Correspondence:
| | - Tana Tandarić
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (T.T.); (R.V.)
| | - Robert Vianello
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (T.T.); (R.V.)
| | - Mirza Bojić
- Department of Medicinal Chemistry, University of Zagreb Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia;
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17
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Qiang T, Li Y, Xu X, Lin W, Wang X. Effect of herbs for treating coronary heart disease on the CYP450 enzyme system and transporters. Am J Transl Res 2020; 12:3182-3197. [PMID: 32774693 PMCID: PMC7407719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
The incidence and mortality of coronary heart disease (CHD) continue to increase every year in China. It has become a serious public health concern, threatening people's health. The combination of herbs and drugs has become a common mode of treatment for various chronic diseases such as CHD and chronic lung disease. Clinical studies have shown that the combination of herbs and drugs can bring more clinical benefits in the treatment of CHD. However, safety issues caused by the interaction between herbs and drugs deserve attention. Recent findings indicate that many herbs and their active ingredients can affect the activities of cytochrome P450 enzyme system (CYP450s) and transporters related to drug metabolism, thus changing the metabolic process of combined drugs, leading to an increase or a decrease in plasma drug concentrations, finally increasing the uncertainty of clinical efficacy and the possibility of adverse events. This review aimed to discuss in detail the effect of herbs on CYP450s and/or transporters in the treatment of CHD and the potential herb-drugs interaction, thus providing the basis for the clinical rational combination of drugs.
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Affiliation(s)
- Tingting Qiang
- Cardiovascular Research Institute of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai, China
- Cardiovascular Department of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai, China
| | - Yiping Li
- Cardiovascular Research Institute of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai, China
- Cardiovascular Department of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai, China
| | - Xiaowen Xu
- Cardiovascular Research Institute of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai, China
- Cardiovascular Department of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai, China
| | - Wenyong Lin
- Cardiovascular Research Institute of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai, China
- Cardiovascular Department of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai, China
| | - Xiaolong Wang
- Cardiovascular Research Institute of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai, China
- Cardiovascular Department of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai, China
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18
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Faisal Z, Vörös V, Fliszár-Nyúl E, Lemli B, Kunsági-Máté S, Csepregi R, Kőszegi T, Zsila F, Poór M. Probing the Interactions of Ochratoxin B, Ochratoxin C, Patulin, Deoxynivalenol, and T-2 Toxin with Human Serum Albumin. Toxins (Basel) 2020; 12:toxins12060392. [PMID: 32545742 PMCID: PMC7354631 DOI: 10.3390/toxins12060392] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 01/03/2023] Open
Abstract
Ochratoxins, patulin, deoxynivalenol, and T-2 toxin are mycotoxins, and common contaminants in food and drinks. Human serum albumin (HSA) forms complexes with certain mycotoxins. Since HSA can affect the toxicokinetics of bound ligand molecules, the potential interactions of ochratoxin B (OTB), ochratoxin C (OTC), patulin, deoxynivalenol, and T-2 toxin with HSA were examined, employing spectroscopic (fluorescence, UV, and circular dichroism) and ultrafiltration techniques. Furthermore, the influence of albumin on the cytotoxicity of these xenobiotics was also evaluated in cell experiments. Fluorescence studies showed the formation of highly stable OTB–HSA and OTC–HSA complexes. Furthermore, fluorescence quenching and circular dichroism measurements suggest weak or no interaction of patulin, deoxynivalenol, and T-2 toxin with HSA. In ultrafiltration studies, OTB and OTC strongly displaced the Sudlow’s site I ligand warfarin, while other mycotoxins tested did not affect either the albumin binding of warfarin or naproxen. The presence of HSA significantly decreased or even abolished the OTB- and OTC-induced cytotoxicity in cell experiments; however, the toxic impacts of patulin, deoxynivalenol, and T-2 toxin were not affected by HSA. In summary, the complex formation of OTB and OTC with albumin is relevant, whereas the interactions of patulin, deoxynivalenol, and T-2 toxin with HSA may have low toxicological importance.
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Affiliation(s)
- Zelma Faisal
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary; (Z.F.); (V.V.); (E.F.-N.)
- János Szentágothai Research Centre, Ifjúság útja 20, H-7624 Pécs, Hungary; (B.L.); (S.K.-M.); (R.C.); (T.K.)
| | - Virág Vörös
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary; (Z.F.); (V.V.); (E.F.-N.)
- János Szentágothai Research Centre, Ifjúság útja 20, H-7624 Pécs, Hungary; (B.L.); (S.K.-M.); (R.C.); (T.K.)
| | - Eszter Fliszár-Nyúl
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary; (Z.F.); (V.V.); (E.F.-N.)
- János Szentágothai Research Centre, Ifjúság útja 20, H-7624 Pécs, Hungary; (B.L.); (S.K.-M.); (R.C.); (T.K.)
| | - Beáta Lemli
- János Szentágothai Research Centre, Ifjúság útja 20, H-7624 Pécs, Hungary; (B.L.); (S.K.-M.); (R.C.); (T.K.)
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary
| | - Sándor Kunsági-Máté
- János Szentágothai Research Centre, Ifjúság útja 20, H-7624 Pécs, Hungary; (B.L.); (S.K.-M.); (R.C.); (T.K.)
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary
| | - Rita Csepregi
- János Szentágothai Research Centre, Ifjúság útja 20, H-7624 Pécs, Hungary; (B.L.); (S.K.-M.); (R.C.); (T.K.)
- Department of Laboratory Medicine, University of Pécs, Medical School, Ifjúság útja 13, H-7624 Pécs, Hungary
| | - Tamás Kőszegi
- János Szentágothai Research Centre, Ifjúság útja 20, H-7624 Pécs, Hungary; (B.L.); (S.K.-M.); (R.C.); (T.K.)
- Department of Laboratory Medicine, University of Pécs, Medical School, Ifjúság útja 13, H-7624 Pécs, Hungary
| | - Ferenc Zsila
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar Tudósok krt. 2, H-1117 Budapest, Hungary;
| | - Miklós Poór
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary; (Z.F.); (V.V.); (E.F.-N.)
- János Szentágothai Research Centre, Ifjúság útja 20, H-7624 Pécs, Hungary; (B.L.); (S.K.-M.); (R.C.); (T.K.)
- Correspondence: ; Tel.: +36-536-000 (ext. 35052)
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Stojanović SD, Nićiforović JM, Živanović SM, Odović JV, Jelić RM. Spectroscopic studies on the drug–drug interaction: the influence of fluoroquinolones on the affinity of tigecycline to human serum albumin and identification of the binding site. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02627-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Phopin K, Ruankham W, Prachayasittikul S, Prachayasittikul V, Tantimongcolwat T. Insight into the Molecular Interaction of Cloxyquin (5-chloro-8-hydroxyquinoline) with Bovine Serum Albumin: Biophysical Analysis and Computational Simulation. Int J Mol Sci 2019; 21:E249. [PMID: 31905871 PMCID: PMC6981711 DOI: 10.3390/ijms21010249] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/24/2019] [Accepted: 12/26/2019] [Indexed: 12/21/2022] Open
Abstract
Cloxyquin is a potential therapeutic compound possessing various bioactivities, especially antibacterial, antifungal, cardioprotective, and pain relief activities. Herein, the interaction mechanism between cloxyquin and bovine serum albumin (BSA) has been elucidated in order to fulfill its pharmacokinetic and pharmacodynamic gaps essential for further development as a therapeutic drug. Multi-spectroscopic and biophysical model analysis suggested that cloxyquin interacts with BSA via a static process by ground-state complex formation. Its binding behavior emerged as a biphasic fashion with a moderate binding constant at the level of 104 M-1. Thermodynamic analysis and molecular docking simulation concurrently revealed that hydrophobic interaction is a major driving force for BSA-cloxyquin complexation. Binding of cloxyquin tends to slightly enlarge the monomeric size of BSA without a significant increase of aggregate fraction. Cloxyquin preferentially binds into the fatty acid binding site 5 (FA5) of the BSA via hydrophobic interaction amongst its quinoline scaffold and Phe550, Leu531, and Leu574 residues of BSA. The quinoline ring and hydroxyl moiety of cloxyquin also form the π-π interaction and the hydrogen bond with Phe506. Our data indicate a potential function of serum albumin as a carrier of cloxyquin in blood circulation.
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Affiliation(s)
- Kamonrat Phopin
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Waralee Ruankham
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Supaluk Prachayasittikul
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Virapong Prachayasittikul
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Tanawut Tantimongcolwat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
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21
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Aamir Qureshi M, Javed S. Structural dynamics studies on the binding of aflatoxin B 1 to chicken egg albumin using spectroscopic techniques and molecular docking. J Biomol Struct Dyn 2019; 38:3144-3155. [PMID: 31378144 DOI: 10.1080/07391102.2019.1652690] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Aflatoxin B1, a mycotoxin produced by large number of Aspergillus species including Aspergillus flavus and Aspergillus parasiticus, has been described as the most potent carcinogenic mycotoxin. In this study, we have used a multiple spectroscopic and molecular docking approach to investigate the interaction of aflatoxin B1 (AFB1) with chicken egg albumin (CEA). Fluorescence spectroscopy, UV-Vis spectroscopy, and three-dimensional fluorescence spectroscopic techniques were employed to gain insight into the conformational changes in CEA in the presence of AFB1. Fluorescence spectroscopy revealed ligand-induced quenching in the fluorescence emission spectra of CEA upon binding with AFB1. Hyperchromic effect was observed in case of the ground state complex formation between CEA and AFB1 by UV-Vis spectroscopy. To gain further comprehension into the site of binding of AFB1 to CEA, competitive site marker displacement assay was performed using warfarin site marker. The magnitude of ΔG value calculated from fluorescence-based method was negative which confirmed spontaneous process. The results obtained suggest that the binding is enthalpy driven and van der Waals force and hydrogen bonds are stabilizing the AFB1-CEA complex. Three-dimensional fluorescence studies also confirmed the quenching in the fluorescence intensity around tryptophan residues in CEA. Circular dichroism assessment revealed reduction in the alpha helical content of CEA in the presence of AFB1. Molecular docking studies showed hydrophobic interaction, van der Waals forces, and hydrogen bonds as major forces present in interaction between CEA and AFB1. The overall study confirms conformational and structural alteration in the protein due to binding of AFB1.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mohd Aamir Qureshi
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Saleem Javed
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
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