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Ovung A, Bhattacharyya J. Sulfonamide drugs: structure, antibacterial property, toxicity, and biophysical interactions. Biophys Rev 2021; 13:259-272. [PMID: 33936318 PMCID: PMC8046889 DOI: 10.1007/s12551-021-00795-9] [Citation(s) in RCA: 130] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/03/2021] [Indexed: 12/11/2022] Open
Abstract
Sulfonamide (or sulphonamide) functional group chemistry (SN) forms the basis of several groups of drug. In vivo sulfonamides exhibit a range of pharmacological activities, such as anti-carbonic anhydrase and anti-t dihydropteroate synthetase allowing them to play a role in treating a diverse range of disease states such as diuresis, hypoglycemia, thyroiditis, inflammation, and glaucoma. Sulfamethazine (SMZ) is a commonly used sulphonamide drug in veterinary medicine that acts as an antibacterial compound to treat livestock diseases such as gastrointestinal and respiratory tract infections. Sulfadiazine (SDZ) is another frequently employed sulphonamide drug that is used in combination with the anti-malarial drug pyrimethamine to treat toxoplasmosis in warm-blooded animals. This study explores the research findings and the work behaviours of SN (SMZ and SDZ) drugs. The areas covered include SN drug structure, SN drug antibacterial activity, SN drug toxicity, and SN environmental toxicity.
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Affiliation(s)
- Aben Ovung
- Department of Chemistry, National Institute of Technology Nagaland, Chumukedima, Dimapur, 797103 India
| | - Jhimli Bhattacharyya
- Department of Chemistry, National Institute of Technology Nagaland, Chumukedima, Dimapur, 797103 India
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Waris S, Habib S, Khan S, Kausar T, Naeem SM, Siddiqui SA, Moinuddin, Ali A. Molecular docking explores heightened immunogenicity and structural dynamics of acetaldehyde human immunoglobulin G adduct. IUBMB Life 2019; 71:1522-1536. [PMID: 31185142 DOI: 10.1002/iub.2078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 05/08/2019] [Indexed: 12/19/2022]
Abstract
Acetaldehyde is a metabolite of ethanol, an important constituent of tobacco pyrolysis and the aldehydic product of lipid peroxidation. Acetaldehyde induced toxicity is mainly due to its binding to cellular macromolecules resulting in the formation of stable adducts accompanied by oxidative stress. The aim of this study was to characterize structural and immunological alterations in human immunoglobulin G (IgG) modified with acetaldehyde in the presence of sodium borohydride, a reducing agent. The IgG modifications were studied by various physicochemical techniques such as fluorescence and CD spectroscopy, free amino group estimation, 2,2-azobis 2-amidinopropane (AAPH) induced red blood cell hemolysis as well as transmission electron microscopy. Molecular docking was also employed to predict the preferential binding of acetaldehyde to IgG. The immunogenicity of native and acetaldehyde-modified IgG was investigated by immunizing female New Zealand white rabbits using native and modified IgG as antigens. Binding specificity and cross reactivity of rabbit antibodies was screened by competitive inhibition ELISA and band shift assays. The modification of human IgG with acetaldehyde results in quenching of the fluorescence of tyrosine residues, decrease in free amino group content, a change in the antioxidant property as well as formation of cross-linked structures in human IgG. Molecular docking reveals strong binding of IgG to acetaldehyde. Moreover, acetaldehyde modified IgG induced high titer antibodies (>1:12800) in the experimental animals. The antibodies exhibited high specificity in competitive binding assay toward acetaldehyde modified human IgG. The results indicate that acetaldehyde induces alterations in secondary and tertiary structure of IgG molecule that leads to formation of neo-epitopes on IgG that enhances its immunogenicity.
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Affiliation(s)
- Sana Waris
- Department of Biochemistry, Faculty of Medicine, J. N. Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Safia Habib
- Department of Biochemistry, Faculty of Medicine, J. N. Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Shifa Khan
- Department of Biochemistry, Faculty of Medicine, J. N. Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Tasneem Kausar
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Shahid M Naeem
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Shahid A Siddiqui
- Department of Radiotherapy, Faculty of Medicine, J. N. Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Moinuddin
- Department of Biochemistry, Faculty of Medicine, J. N. Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Asif Ali
- Department of Biochemistry, Faculty of Medicine, J. N. Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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Guo H, Zhang Y, Huang R, Su R, Qi W, He Z. Interactions of Fly Ash Particles with Mucin and Serum Albumin. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12251-12258. [PMID: 30230845 DOI: 10.1021/acs.langmuir.8b02188] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fly ash particles can contribute to haze and adverse health outcomes. In this study, two mucins, one from bovine submaxillary glands (bovine submaxillary mucin, BSM) and one from porcine stomach (porcine gastric mucin), as well as bovine serum albumin (BSA), which served as the physical barriers against foreign substances entering the tissues and the blood protein, respectively, were chosen as models for the investigations of the interactions between the proteins and the fly ash particles. Their adsorption behaviors were studied using spectroscopy and a quartz crystal microbalance with a dissipation monitor (QCM-D). The results indicated that the fly ash particles can induce the loosening of mucins and BSA, probably via the formation of complexes. Further, the secondary structure of proteins changed in the presence of fly ash particles. The α-helix content decreased with an increasing fly ash particle concentration. The addition of fly ash particles into protein solutions led to fluorescence quenching, which suggested that there were interactions between these particles and the mucins and BSA. The association constants ( Ka) for BSM and BSA were 5.35 and 4.18 L/g, respectively. Furthermore, the results of QCM-D analyses showed that the amount decreased on the mucin surface but increased slightly on the BSA surface, which indicated that the fly ash particles disrupted the mucin layer upon adsorption. These findings provide clear evidence of the interactions between the fly ash particles and the mucins and BSA, which can lead to structural changes. This study contributes to a better understanding of the interactions and adsorptions of atmospheric particulate pollutants with the proteins in the human body.
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Affiliation(s)
| | | | | | - Rongxin Su
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , PR China
| | - Wei Qi
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , PR China
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Mu H, Xu Z, Liu Y, Sun Y, Wang B, Sun X, Wang Z, Eremin S, Zherdev AV, Dzantiev BB, Lei H. Probing the stereoselective interaction of ofloxacin enantiomers with corresponding monoclonal antibodies by multiple spectrometry. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 194:83-91. [PMID: 29328954 DOI: 10.1016/j.saa.2018.01.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 12/19/2017] [Accepted: 01/03/2018] [Indexed: 06/07/2023]
Abstract
Although stereoselective antibody has immense potential in chiral compounds detection and separation, the interaction traits between stereoselective antibody and the corresponding antigenic enantiomers are not yet fully exploited. In this study, the stereospecific interactions between ofloxacin isomers and corresponding monoclonal antibodies (McAb-WR1 and McAb-MS1) were investigated using time-resolved fluorescence, steady-state fluorescence, and circular dichroism (CD) spectroscopic methods. The chiral recognition discrepancies of antibodies with ofloxacin isomers were reflected through binding constant, number of binding sites, driving forces and conformational changes. The major interacting forces of McAb-WR1 and McAb-MS1 chiral interaction systems were hydrophobic force and van der Waals forces joined up with hydrogen bonds, respectively. Synchronous fluorescence spectra and CD spectra results showed that the disturbing of tyrosine and tryptophan micro-environments were so slightly that no obvious secondary structure changes were found during the chiral hapten binding. Clarification of stereospecific interaction of antibody will facilitate the application of immunoassay to analyze chiral contaminants in food and other areas.
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Affiliation(s)
- Hongtao Mu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University / Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, Guangzhou 510642, China; College of Biology and Food Engineering, Guangdong University of Education, Guangzhou 510303, China
| | - Zhenlin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University / Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, Guangzhou 510642, China
| | - Yingju Liu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University / Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, Guangzhou 510642, China
| | - Yuanming Sun
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University / Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, Guangzhou 510642, China
| | - Baoling Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University / Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, Guangzhou 510642, China
| | - Xiulan Sun
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zhanhui Wang
- College of Veterinary, China Agricultural University, Beijing 100083, China
| | - Sergei Eremin
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
| | - Anatoly V Zherdev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
| | - Boris B Dzantiev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
| | - Hongtao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University / Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, Guangzhou 510642, China.
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