1
|
Chen J, Yu S, He Z, Zhu D, Cai X, Ruan Z, Jin N. Inhibition of Xanthine Oxidase by 4-nitrocinnamic Acid: In Vitro and In Vivo Investigations and Docking Simulations. Curr Pharm Biotechnol 2024; 25:477-487. [PMID: 37345239 DOI: 10.2174/1389201024666230621141014] [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: 11/12/2022] [Revised: 05/21/2023] [Accepted: 05/29/2023] [Indexed: 06/23/2023]
Abstract
Background: Cinnamic acid and its derivatives have gained significant attention in recent medicinal research due to their broad spectrum of pharmacological properties. However, the effects of these compounds on xanthine oxidase (XO) have not been systematically investigated, and the inhibitory mechanism remains unclear. Objectives: The objective of this study was to screen 18 compounds and identify the XO inhibitor with the strongest inhibitory effect. Furthermore, we aimed to study the inhibitory mechanism of the identified compound. Methods: The effects of the inhibitors on XO were evaluated using kinetic analysis, docking simulations, and in vivo study. Among the compounds tested, 4-NA was discovered as the first XO inhibitor and exhibited the most potent inhibitory effects, with an IC50 value of 23.02 ± 0.12 μmol/L. The presence of the nitro group in 4-NA was found to be essential for enhancing XO inhibition. The kinetic study revealed that 4-NA inhibited XO in a reversible and noncompetitive manner. Moreover, fluorescence spectra analysis demonstrated that 4-NA could spontaneously form complexes with XO, referred to as 4-NA-XO complexes, with the negative values of △H and ΔS. Results: This suggests that hydrogen bonds and van der Waals forces play crucial roles in the binding process. Molecular docking studies further supported the kinetic analysis and provided insight into the optimal binding conformation, indicating that 4-NA is located at the bottom outside the catalytic center through the formation of three hydrogen bonds. Furthermore, animal studies confirmed that the inhibitory effects of 4-NA on XO resulted in a significant reduction of serum uric acid level in hyperuricemia mice. Conclusion: This work elucidates the mechanism of 4-NA inhibiting XO, paving the way for the development of new XO inhibitors. .
Collapse
Affiliation(s)
- Jianmin Chen
- School of Pharmacy and Medical Technology, Putian University, Fujian, China
- Key Laboratory of Pharmaceutical Analysis and Laboratory Medicine (Putian University), Fujian Province University, Fujian, China
| | - Sijin Yu
- School of Pharmacy and Medical Technology, Putian University, Fujian, China
| | - Zemin He
- School of Pharmacy and Medical Technology, Putian University, Fujian, China
| | - Danhong Zhu
- School of Pharmacy and Medical Technology, Putian University, Fujian, China
| | - Xiaozhen Cai
- School of Pharmacy and Medical Technology, Putian University, Fujian, China
| | - Zhipeng Ruan
- School of Pharmacy and Medical Technology, Putian University, Fujian, China
- Key Laboratory of Pharmaceutical Analysis and Laboratory Medicine (Putian University), Fujian Province University, Fujian, China
| | - Nan Jin
- School of Pharmacy and Medical Technology, Putian University, Fujian, China
- Key Laboratory of Pharmaceutical Analysis and Laboratory Medicine (Putian University), Fujian Province University, Fujian, China
| |
Collapse
|
2
|
Li YJ, Liang CC, Jin L, Chen J. Inhibition mechanisms of four ellagitannins from terminalia chebula fruits on acetylcholinesterase by inhibition kinetics, spectroscopy and molecular docking analyses. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123115. [PMID: 37453379 DOI: 10.1016/j.saa.2023.123115] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 06/15/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
Acetylcholinesterase (AChE) is an important therapeutic target for the treatment of Alzheimer's disease (AD), and the development of natural AChE inhibitors as candidates has played a significant role in drug discovery. In this study, the inhibition mechanisms of four ellagitannins, punicalagin, chebulinic acid, geraniin and corilagin, from Terminalia chebula fruits on AChE were investigated systematically by a combination of inhibition kinetics, multi-spectroscopic methods and molecular docking. The kinetic results showed that punicalagin, chebulinic acid and geraniin exhibited strong reversible inhibitory effects on AChE in an uncompetitive manner with the IC50 values of 0.43, 0.50, and 0.51 mM, respectively, while corilagin inhibited AChE activity in a mixed type with the IC50 value of 0.72 mM. The results of fluorescence and UV-vis spectra and fluorescence resonance energy transfer (FRET) revealed that four ellagitannins could significantly quenched the intrinsic fluorescence of AChE though a static quenching along with non-radiative energy transfer. Thermodynamic analyses showed that values of ΔG, ΔH and ΔS were negative, indicating that all binding processes were spontaneous, and the hydrogen bonding and Van der Waals forces might make a great contribution to the formation of inhibitor-AChE complexes. The synchronous fluorescence, three-dimensional (3D) fluorescence, UV-vis, and FT-IR spectra studies suggested that four ellagitannins could lead to alterations in the micro-environment and secondary structure of AChE, and thus the conformational change of AChE. Moreover, molecular docking demonstrated that four ellagitannins could interacted with main amino acid residues of AChE with affinity energies ranging from -9.9 to -8.7 kJ/mol, and further confirmed the above experimental results. This study provided valuable findings for the potential application of four ellagitannins as promising candidates in the exploration of natural AChE inhibitors for the treatment of AD.
Collapse
Affiliation(s)
- Yan-Jun Li
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Cai-Cai Liang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Ling Jin
- College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, China.
| | - Juan Chen
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China.
| |
Collapse
|
3
|
Leimann FV, de Souza LB, de Oliveira BPM, Rossi BF, da Silva PS, Shiraishi CSH, Kaplum V, Abreu RM, Pereira C, Barros L, Peron AP, Ineu RP, Oechsler BF, Sayer C, de Araújo PHH, Gonçalves OH. Evaluation of berberine nanoparticles as a strategy to modulate acetylcholinesterase activity. Food Res Int 2023; 173:113295. [PMID: 37803607 DOI: 10.1016/j.foodres.2023.113295] [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: 04/05/2023] [Revised: 07/13/2023] [Accepted: 07/19/2023] [Indexed: 10/08/2023]
Abstract
Researchers have concentrated efforts in the search for natural-based reversible inhibitors for cholinesterase enzymes as they may play a key role in the treatment of degenerative diseases. Diverse plant alkaloids can inhibit the action of acetylcholinesterase and, among them, berberine is a promising bioactive. However, berberine has poor water solubility and low bioavailability, which makes it difficult to use in treatment. The solid dispersion technique can improve the water affinity of hydrophobic substances, but berberine solid dispersions have not been extensively studied. Safety testing is also essential to ensure that the berberine-loaded solid dispersions are safe for use. This study investigated the effectiveness of berberine-loaded solid dispersions (SD) as inhibitors of acetylcholinesterase enzyme (AChE). Docking simulation was used to investigate the influence of berberine on AChE, and in vitro assays were conducted to confirm the enzymatic kinetics of AChE in the presence of berberine. Berberine SD also showed improved cytotoxic effects on tumoral cells when dispersed in aqueous media. In vivo assays using Allium cepa were implemented, and no cytotoxicity/genotoxicity was found for the berberine solid dispersion. These results suggest that berberine SD could be a significant step towards safe nanostructures for use in the treatment of neurodegenerative diseases.
Collapse
Affiliation(s)
- Fernanda Vitória Leimann
- Post-Graduation Program of Food Technology (PPGTA), Federal University of Technology - Paraná - UTFPR, Brazil; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal.
| | - Luma Borges de Souza
- Post-Graduation Program of Food Technology (PPGTA), Federal University of Technology - Paraná - UTFPR, Brazil
| | | | - Bruna Franzon Rossi
- Food and Chemical Engineering Academic Department (DAAEQ), Federal University of Technology - Paraná - UTFPR, Brazil
| | | | - Carlos Seiti Hurtado Shiraishi
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Vanessa Kaplum
- Post-Graduation Program of Food Technology (PPGTA), Federal University of Technology - Paraná - UTFPR, Brazil
| | - Rui Miguel Abreu
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Carla Pereira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Ana Paula Peron
- Biodiversity and Nature Conservation Department, Federal University of Technology - Paraná - UTFPR, Brazil
| | - Rafael Porto Ineu
- Department of Technology and Food Science, Federal University of Santa Maria - UFSM, Brazil
| | - Bruno Francisco Oechsler
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Brazil
| | - Claudia Sayer
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Brazil
| | | | - Odinei Hess Gonçalves
- Post-Graduation Program of Food Technology (PPGTA), Federal University of Technology - Paraná - UTFPR, Brazil; Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal.
| |
Collapse
|
4
|
Chen J, Wang Y, Pan X, Cheng Y, Liu J, Cao X. Study on the interaction mechanism between luteoloside and xanthine oxidase by multi-spectroscopic and molecular docking methods. J Mol Recognit 2022; 35:e2985. [PMID: 35907782 DOI: 10.1002/jmr.2985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/29/2022] [Accepted: 07/25/2022] [Indexed: 01/05/2023]
Abstract
Gout is an inflammatory joint disease caused by urate crystal deposition, which is associated with hyperuricemia. Gout will take place when the uric acid accumulates. Xanthine oxidase (XO) is a crucial enzyme in the formation of uric acid. Inhibiting XO is one of the means to ameliorate gout. Luteoloside is a kind of natural flavonoid, which has an excellent prospect for relieving gout. But there are few reports on the interaction mechanism between luteoloside and XO currently. In this study, the interaction mechanism between luteoloside and XO was explored using spectroscopy and molecular docking. The fluorescence spectroscopy results indicated that luteoloside could make the intrinsic fluorescence of XO quenched, and the binding constant between luteoloside and XO was (1.85 ± 0.22) × 103 L mol-1 at 298 K. The synchronous fluorescence spectroscopy results showed that the absorption peaks of Tyr and Trp shifted blue, and the hydrophobicity of the microenvironment increased. Moreover, CD spectra showed that α-helix of XO decreased, β-sheet and β-turn increased after adding luteoloside. The results of molecular docking analysis showed that XO could combine with luteoloside through hydrogen bonds and hydrophobic force. The results indicated that luteoloside could remarkably interact with XO. Insights into the interaction mechanism provide a necessary basis for the search for low-toxic natural products as targets of XO. HIGHLIGHTS: Luteoloside and xanthine oxidase was a strong binding mode and had only one binding site. Luteoloside could cause α-helix reduced, β-sheet and β-turn increased, and change the secondary structure of XO. The binding between luteoloside and xanthine oxidase was a spontaneous process. The main binding force was hydrophobic force between luteoloside and xanthine oxidase.
Collapse
Affiliation(s)
- Junliang Chen
- Department of Biological Sciences, School of life Science, Liaoning University, Shenyang, People's Republic of China
| | - Yuxiao Wang
- Department of Food Science, College of Light Industry, Liaoning University, Shenyang, People's Republic of China
| | - Xinyu Pan
- Department of Biological Sciences, School of life Science, Liaoning University, Shenyang, People's Republic of China
| | - Ye Cheng
- Department of Biological Sciences, School of life Science, Liaoning University, Shenyang, People's Republic of China
| | - Jianli Liu
- Department of Biological Sciences, School of life Science, Liaoning University, Shenyang, People's Republic of China
| | - Xiangyu Cao
- Department of Biological Sciences, School of life Science, Liaoning University, Shenyang, People's Republic of China
| |
Collapse
|
5
|
Zhang Q, Duan S, Huang Y, Tian J, Hu J. Dual-band fluorescence detection of double-stranded DNA with QDs-Mn 2+-pefloxacin. Colloids Surf B Biointerfaces 2022; 217:112649. [PMID: 35753193 DOI: 10.1016/j.colsurfb.2022.112649] [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: 04/21/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 11/18/2022]
Abstract
By integrating the fluorescence of quantum dots (QDs) and Mn2+-pefloxacin mesylate (Mn2+-pefloxacin), a new type of dual-band fluorescence biosensor for high-efficiency and sensitive determination of double-stranded DNA (dsDNA) is developed. The biosensor is based on the fluorescence "OFF-ON" mode of both QDs and QDs-Mn2+-pefloxacin. The Mn2+-pefloxacin complex can quench the QDs fluorescence via photoinduced electron transfer (PET), and its fluorescence is also quenched. Due to the specificity and strong binding affinity of dsDNA for the Mn2+-pefloxacin complex, it can break the low fluorescent QDs-Mn2+-pefloxacin and restore the fluorescence of QDs and Mn2+-pefloxacin complex in their respective bands. Therefore, the dual-band fluorescence quantitative detection of dsDNA by QDs-Mn2+-pefloxacin can be achieved, while bovine serum albumin, single-stranded DNA, and bio-related ions do not yield similar results. Furthermore, the possible reaction mechanisms are systematically discussed. The detection limits (3δ/K) of herring sperm (hs) DNA in the fluorescence recovery bands of QDs and Mn2+-pefloxacin complex are 0.0142 and 0.0465 μg/mL, respectively. The developed biosensor was used for dsDNA detection in synthetic samples, and desirable results are obtained.
Collapse
Affiliation(s)
- Qiang Zhang
- Academy for Engineering & Technology, Fudan University, Shanghai 200433, PR China; CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, PR China
| | - Shengbao Duan
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, PR China; Jihua Laboratory, Foshan, PR China
| | - Yinong Huang
- Shaanxi Institute of Pediatric Diseases, Xi'an Children's Hospital, Xi'an, Shaanxi 710003, PR China
| | - Jingjing Tian
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, PR China.
| | - Jia Hu
- School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou, Jiangsu 215123, PR China; Suzhou Industrial Technology Research Institute of Zhejiang University, Suzhou, Jiangsu 215163, PR China.
| |
Collapse
|
6
|
Su Y, Sun Y, Zhai Y, Gu L, Li J, Gong L, Chang C, Yang Y. Effects of surfactants on activity and structure of egg yolk antibody. FOOD AND BIOPRODUCTS PROCESSING 2022. [DOI: 10.1016/j.fbp.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
7
|
Nguyen HT, Vu TY, Dakal TC, Dhabhai B, Nguyen XHQ, Tatipamula VB. Cleroda-4(18),13-dien-15,16-olide as novel xanthine oxidase inhibitors: An integrated in silico and in vitro study. PLoS One 2021; 16:e0253572. [PMID: 34191831 PMCID: PMC8244894 DOI: 10.1371/journal.pone.0253572] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/08/2021] [Indexed: 11/18/2022] Open
Abstract
In the present study, in silico predictions and molecular docking were performed on five clerodane diterpenes (1-5) from Polyalthia longifolia seeds to evaluate their potential as xanthine oxidase (XO) inhibitors. The initial screening was conducted by target prediction using TargetNet web server application and only compounds 3 and 4 showed a potential interaction with XO. Compounds 3 and 4 were subsequently subjected to in silico analyses on XO protein structure (PDB: 1N5X) using Schrödinger Release 2020-3 followed by structural modeling & molecular simulation studies to confirm the initial prediction result and identify the binding mode of these compounds to the XO. Molecular docking results revealed that compounds 3 (-37.3 kcal/mol) and 4 (-32.0 kcal/mol) binds more stably to XO than the reference drug allopurinol (-27.0 kcal/mol). Interestingly, two residues Glu 802 and Thr 1010 were observed as the two main H-bond binding sites for both tested compounds and the allopurinol. The center scaffold of allopurinol was positioned by some π-π stacking with Phe 914 and Phe 1009, while that of compounds 3 and 4 were supported by many hydrophobic interactions mainly with Leu 648, Phe 649, Phe 1013, and Leu 1014. Additionally, the docking simulation predicted that the inhibitory effect of compounds 3 and 4 was mediated by creating H-bond with particularly Glu 802, which is a key amino acid for XO enzyme inhibition. Altogether, in vitro studies showed that compounds 3 and 4 had better inhibitory capacity against XO enzyme with IC50 values significantly (p < 0.001) lower than that of allopurinol. In short, the present study identified cleroda-4(18),13-dien-15,16-olide as novel potential XO inhibitors, which can be potentially used for the treatment of gout.
Collapse
Affiliation(s)
- Ha Thi Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- Faculty of Medicine, Duy Tan University, Da Nang, Vietnam
| | - Thien-Y Vu
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- * E-mail: (TYV); (VBT)
| | - Tikam Chand Dakal
- Genome and Computational Biology Lab, Department of Biotechnology, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Bhanupriya Dhabhai
- Genome and Computational Biology Lab, Department of Biotechnology, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | | | - Vinay Bharadwaj Tatipamula
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- Faculty of Medicine, Duy Tan University, Da Nang, Vietnam
- * E-mail: (TYV); (VBT)
| |
Collapse
|
8
|
Huang Y, Wu P, Ying J, Dong Z, Chen XD. Mechanistic study on inhibition of porcine pancreatic α-amylase using the flavonoids from dandelion. Food Chem 2020; 344:128610. [PMID: 33221105 DOI: 10.1016/j.foodchem.2020.128610] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 10/10/2020] [Accepted: 11/07/2020] [Indexed: 11/18/2022]
Abstract
This study was designed to investigate quantitatively the inhibition and molecular mechanism of pancreatic α-amylase exhibited by flavonoids from dandelion to reveal its potential use in relieving postprandial hyperglycemia. The results show that the flavonoids reversibly inhibited the α-amylase in a non-competitive manner with Michaelis-Menten constant (Km) and half-inhibitory concentration (IC50) value of 10.51 and 0.0067 mg/mL, respectively. The flavonoids present a strong ability to quench the intrinsic fluorescence of α-amylase through static quenching by forming a complex. The values of the binding site (n) at different temperatures were found to be approximately the unity, indicating the presence of a single class of molecular binding of the dandelion flavonoids on α-amylase. The positive values of enthalpy and entropy change reveal that the binding was predominately driven by hydrophobic interactions. This study suggests a benefit of incorporating the dandelion flavonoids in making functional foods in managing the diet of the diabetes.
Collapse
Affiliation(s)
- Yanmei Huang
- Suzhou Key Laboratory of Green Chemical Engineering, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Peng Wu
- Suzhou Key Laboratory of Green Chemical Engineering, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Jian Ying
- Nutrition & Health Research Institute, COFCO Corporation, Beijing 102209, China
| | - Zhizhong Dong
- Nutrition & Health Research Institute, COFCO Corporation, Beijing 102209, China; Beijing Key Laboratory of Nutrition & Health and Food Safety, Beijing 102209, China
| | - Xiao Dong Chen
- Suzhou Key Laboratory of Green Chemical Engineering, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| |
Collapse
|
9
|
Zhao J, Huang L, Sun C, Zhao D, Tang H. Studies on the structure-activity relationship and interaction mechanism of flavonoids and xanthine oxidase through enzyme kinetics, spectroscopy methods and molecular simulations. Food Chem 2020; 323:126807. [PMID: 32330646 DOI: 10.1016/j.foodchem.2020.126807] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/25/2020] [Accepted: 04/13/2020] [Indexed: 12/14/2022]
Abstract
In this study, some flavonoids were screened as potent xanthine oxidase (XO) inhibitors in vitro. Flavonoid 9 was demonstrated to exhibit the inhibitory activity through a ping-pong mechanism. Further structure-activity relationship revealed that different structural elements had greatly influenced the inhibition effect on XO and underlined the requirement of hydroxyl groups at C5 and C4' of flavonoid type I. Moreover, some bioactive flavonoids could efficiently quench the intrinsic fluorescence of XO by either static or static-dynamic mixed mechanism. The synchronous fluorescence, ANS-binding fluorescence, Fourier transform infrared spectra and circular dichroism suggested that active flavonoids could bind to the active center of XO, prevent the entrance of substrate, and induce the rearrangement and conformation change of its secondary structures, ultimately resulting in the significant inhibition effect. Additionally, molecular docking further confirmed these conclusions and highlighted the great importance of hydrophobic interactions and hydrogen bonds for the formation of stable complex conformation.
Collapse
Affiliation(s)
- Jie Zhao
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, PR China
| | - Lin Huang
- Blood Purification Center, Affiliated Yijishan Hospital of Wannan Medical College, Wuhu 241001, PR China
| | - Chunyong Sun
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Dongsheng Zhao
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China.
| | - Hongjin Tang
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, PR China.
| |
Collapse
|
10
|
Wang X, Liu Z, Gao P, Li Y, Qu X. Surface functionalized quantum dots as biosensor for highly selective and sensitive detection of ppb level of propafenone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117709. [PMID: 31699588 DOI: 10.1016/j.saa.2019.117709] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/22/2019] [Accepted: 10/24/2019] [Indexed: 06/10/2023]
Abstract
Monodispersed CdTe quantum dots (QDs) were prepared by using thioglycolic acid as surfactants in aqueous solution. The thioglycolic acid was chemically adsorbed on the surface of CdTe QDs that enables the QDs positively charged. In week acidic media, propafenone is positively charged, which can combine with the CdTe QDs to form larger ion-association complex via electrostatic attraction and hydrogen bond. Moreover, the formed ion-association complex could increase the intensity of resonance Rayleigh scattering (RRS), second-order scattering (SOS) and frequency doubling-scattering (FDS) of CdTe QDs, and quench the CdTe QDs fluorescence. Importantly, under optimal experimental conditions, the increased RRS, SOS and FDS intensity, and quenched fluorescence intensity of CdTe QDs were in direct proportion to the propafenone concentration in a certain range, respectively. Among them, the RRS method exhibited the highest sensitivity. In a wide concentration range of propafenone from 0.003 to 7.0 μg mL-1, the detection limit could reach 0.96 ng mL-1, which was much lower than previously reported methods. To simulate practical applications, the possible foreign interfering substances were also investigated, such as common ions, amino acid, and glucide. The proposed method here is rapid, sensitive and shows promising application for detection of ppb level of propafenone in human serum.
Collapse
Affiliation(s)
- Xiaodan Wang
- Department of Mining and Metallurgical Engineering, Baiyin Institute of Mining and Metallurgy, Chengxin Road No.2, Baiyin, Gansu Province, 730900, China
| | - Zhengqing Liu
- Frontier Institute of Science and Technology Jointly with College of Science, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, 99 Yanxiang Road, Yanta District, Xi'an, Shaanxi Province, 710054, China
| | - Pengfei Gao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, PR China
| | - Yanjie Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, PR China
| | - Xiaoyan Qu
- Frontier Institute of Science and Technology, Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, State Key Laboratory for Manufacturing Systems Engineering, Instrument Analysis Center, Xi'an Jiaotong University, Xi'an, 710000, China.
| |
Collapse
|
11
|
Tang H, Huang L, Sun C, Zhao D. Exploring the structure–activity relationship and interaction mechanism of flavonoids and α-glucosidase based on experimental analysis and molecular docking studies. Food Funct 2020; 11:3332-3350. [DOI: 10.1039/c9fo02806d] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An integrated method was explored to investigate the structure–activity relationship and interaction mechanism between a library of natural flavonoids and α-glucosidase.
Collapse
Affiliation(s)
- Hongjin Tang
- College of Biological and Chemical Engineering
- Anhui Polytechnic University
- Wuhu 241000
- P. R. China
| | - Lin Huang
- Blood Purification Center
- Affiliated Yijishan Hospital of Wannan Medical College
- Wuhu 241001
- P. R. China
| | - Chunyong Sun
- College of Pharmacy
- Shandong University of Traditional Chinese Medicine
- Jinan 250355
- P. R. China
| | - Dongsheng Zhao
- College of Pharmacy
- Shandong University of Traditional Chinese Medicine
- Jinan 250355
- P. R. China
| |
Collapse
|
12
|
Tong W, Yang Y. Spectroscopic studies on the interaction of a novel porphyrin derivative (PFP) and bovine serum albumin. MEDICINE IN DRUG DISCOVERY 2019. [DOI: 10.1016/j.medidd.2020.100015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
13
|
Effect of Salvia miltiorrhiza on acetylcholinesterase: Enzyme kinetics and interaction mechanism merging with molecular docking analysis. Int J Biol Macromol 2019; 135:303-313. [PMID: 31128195 DOI: 10.1016/j.ijbiomac.2019.05.132] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 05/20/2019] [Accepted: 05/21/2019] [Indexed: 11/22/2022]
Abstract
Acetylcholinesterase (AchE) serves as an important target for Alzheimer's disease. Salvia miltiorrhiza has been used to treat cardiovascular disease for hundreds of years. However, the interaction between S. miltiorrhiza and AchE is still inadequate. Herein, an integrated method including molecular docking and experimental studies was employed to investigate the interaction. Consequently, some components were screened as potent AchE inhibitors by in silico and in vitro. Among them, miltirone (MT) and salvianolic acid A (SAA) reversibly inhibited AchE in a mixed-competitive manner. Fluorescence data revealed that SAA and salvianolic acid C (SAC) strongly quenched the intrinsic fluorescence of AchE through a static quenching mechanism, and the binding was spontaneous and dominated by hydrophobic interaction inferred by the thermodynamic parameters. The synchronous and ANS-binding fluorescence spectra suggested that SAA and SAC could bind to the enzyme and induce its conformation changes of secondary structures, which was further confirmed by Fourier transform infrared spectra. Meanwhile, molecular docking presented the probable binding modes of inhibitors to AchE and highlighted the key role of hydrophobic interaction and hydrogen bonds for the stability of docking complex. These findings put more insights into understanding the interaction of S. miltiorrhiza chemicals and AchE, as well as Alzheimer's disease.
Collapse
|
14
|
Yuan M, Liu Y, Xiao A, Leng J, Liao L, Ma L, Liu L. The interaction of dietary flavonoids with xanthine oxidase in vitro: molecular property-binding affinity relationship aspects. RSC Adv 2019; 9:10781-10788. [PMID: 35515322 PMCID: PMC9062502 DOI: 10.1039/c8ra09926j] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/25/2019] [Indexed: 11/21/2022] Open
Abstract
The molecular property-affinity relationships of dietary flavonoids binding to xanthine oxidase were investigated in vitro by comparing the binding constants obtained from a fluorescence-quenching method. The inhibitions of dietary flavonoids on xanthine oxidase were also investigated and analyzed, revealing that the binding process was influenced by the structural differences of the flavonoids under investigation. For example, methylation and hydroxylation at the 7- and 5-positions weakened the binding affinities, while hydroxylation at the 3- and 3'-positions mostly improved binding affinities. Glycosylation and hydrogenation of the C2[double bond, length as m-dash]C3 double bond also increased affinities for xanthine oxidase. In addition, galloylated catechins showed higher binding affinities than non-galloylated catechins. Trends in the binding affinities and inhibition of flavonoids during structure modifications were summarized. Affinities for xanthine oxidase and inhibition on xanthine oxidase changed in the opposite direction during the methylation and hydroxylation of flavonoids in the A ring, and the glycosylation and hydrogenation of C2[double bond, length as m-dash]C3. However, affinities and inhibition for xanthine oxidase changed in the same direction during the methylation and hydroxylation of flavonoids in the B ring.
Collapse
Affiliation(s)
- Mengmeng Yuan
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
- College of Chemistry and Chemical Engineering, Central South University Changsha 410083 China
| | - Yi Liu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
| | - Aiping Xiao
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
| | - Juan Leng
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
| | - Liping Liao
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
| | - Lei Ma
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University China
| | - Liangliang Liu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences Changsha 410205 China
| |
Collapse
|
15
|
Shahraki S, Heydari A, Delarami HS, Oveisi Keikha A, Azizi Z, Fathollahi Zonouz A. Preparation, characterization and comparison of biological potency in two new Zn(II) and Pd(II) complexes of butanedione monoxime derivatives. J Biomol Struct Dyn 2019; 38:997-1011. [PMID: 30938659 DOI: 10.1080/07391102.2019.1591305] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel Schiff base ligand (2-iminothiophenol-2,3-butanedione monoxime, ITBM) and its complexes with Pd(II) and Zn(II) metal ions ([M(ITBM)2]Cl2) were synthesized and characterized in the present study. The formulated complexes were evaluated for in vitro antioxidant activity as radical scavengers against 1,1-diphenyl-2-picrylhydrazyl radicals (DPPH•). According to the results, antioxidant activity of Pd complex (IC50=36 mg L-1) was more effective than that of Zn(II) complex (IC50=72 mg L-1). Biophysical techniques along with computational modeling were employed to examine the binding of these complexes with human serum albumin (HSA) as the model protein. The trial findings revealed an interaction between Schiff base complexes and HSA with a modest binding affinity [Kb=6.31(±0.11)×104 M-1 for Zn(II) complex and 0.71(±0.05)×104 M-1 for Pd(II) complex at 310 K]. An intense fluorescence quenching of protein through a static quenching mechanism was occurred due to the binding of both complexes to HSA. Hydrogen bonds and van der Waals forces in both examined systems were the main stabilizing forces in the development of drug-protein complex. Based on far-UV-CD observations, the content of α-helical structure in the protein was reduced through induction by both complexes. Analysis of protein-ligand docking demonstrated binding of the two Schiff base complexes to residues placed in the IIA subdomain of HSA. In addition, Zn complex with HSA showed a stronger binding ability than that of Pd complex.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
| | - Ali Heydari
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran
| | | | | | - Zahra Azizi
- Faculty of Pharmacy, Zabol University of Medical Sciences, Zabol, Iran
| | | |
Collapse
|
16
|
Shahraki S, Shiri F, Heidari Majd M, Dahmardeh S. Investigating the biological potency of novel lanthanum(III) amino acid complex: MCF-7 breast cancer cell line, BSA and β-LG as targets. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-018-1508-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
17
|
Shahraki S, Majd MH, Heydari A. Novel tetradentate Schiff base zinc(II) complex as a potential antioxidant and cancer chemotherapeutic agent: Insights from the photophysical and computational approach. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
18
|
Shahraki S, Shiri F, Razmara Z, Majd MH. A comparative study of the impact of metal complex size on the in vitro biological behavior of hetero di- and poly-nuclear Mn-Co complexes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
19
|
Shahraki S, Shiri F, Heidari Majd M, Dahmardeh S. Anti-cancer study and whey protein complexation of new lanthanum(III) complex with the aim of achieving bioactive anticancer metal-based drugs. J Biomol Struct Dyn 2018; 37:2072-2085. [PMID: 29768984 DOI: 10.1080/07391102.2018.1476266] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this study, a new lanthanum (III)-amino acid complex utilizing cysteine has been synthesized and characterized. The anticancer activities of the prepared La(III) complex against MCF-7 cell lines were studied. Results of MTT assay showed that at all three incubation times, the cytotoxic effect of prepared La(III) complex on MCF-7 breast cancer cell lines displays a time- and dose-dependent inhibitory effects. The interactions of the La(III) complex with two whey proteins (bovine serum albumin, BSA, and Bovine β-lactoglobulin, βLG) have been explored by using spectroscopic and molecular dicking methods. The obtained results indicated that La(III) complex strongly quenched the fluorescence of two carrier proteins in static quenching mode and also, BSA hah stronger binding affinity toward studied complex than βLG whit binding constant values of KBSA-La Complex ∼ 0.11 × 104 M-1 and KβLG-La Complex ∼ 0.63 × 103 M-1 at 300 K. The thermodynamic parameters revealed the contribution of hydrogen bond and Vander Waals interactions in both systems. The distances of the La(III) complex whit whey proteins were calculated using Förster energy transfer theory and proved existence of the energy transfer between two proteins and prepared La(III) complex with a high probability. FT-IR and UV-Vis absorption measurements indicated that the binding of the La(III) to BSA and βLG may induce conformational and micro-environmental changes of the proteins. The docking results indicate that the La(III) complex bind to residues located in the site II of BSA and second site of βLG. Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Somaye Shahraki
- a Department of Chemistry , University of Zabol , P.O. Box 98615-538 , Zabol , Iran
| | - Fereshteh Shiri
- a Department of Chemistry , University of Zabol , P.O. Box 98615-538 , Zabol , Iran
| | | | - Somaye Dahmardeh
- b Faculty of Pharmacy , Zabol University of Medical Sciences , Zabol , Iran
| |
Collapse
|
20
|
Mechanistic insights into the inhibition of quercetin on xanthine oxidase. Int J Biol Macromol 2018; 112:405-412. [DOI: 10.1016/j.ijbiomac.2018.01.190] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 11/21/2022]
|
21
|
Liu T, Chen X, Xing J, Ge Z. Effects of acetazolamide on the conformations and activities of digestive enzymes: pepsin and trypsin. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2172-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
22
|
Li M, Yu Y, Liu J, Chen Z, Cao S. Investigation of the interaction between benzaldehyde thiosemicarbazone compounds and xanthine oxidase. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.01.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
23
|
Shahraki S, Shiri F. Binding interaction of isoxsuprine hydrochloride and levothyroxine to milk β-lactoglobulin; from the perspective of comparison. Int J Biol Macromol 2018; 109:576-588. [DOI: 10.1016/j.ijbiomac.2017.12.117] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/16/2017] [Accepted: 12/20/2017] [Indexed: 12/16/2022]
|
24
|
Su G, He W, Zhao M, Waterhouse GI, Sun-Waterhouse D. Effect of different buffer systems on the xanthine oxidase inhibitory activity of tuna ( Katsuwonus pelamis ) protein hydrolysate. Food Res Int 2018; 105:556-562. [DOI: 10.1016/j.foodres.2017.11.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 11/18/2017] [Accepted: 11/19/2017] [Indexed: 02/06/2023]
|
25
|
Intermolecular interactions and binding mechanism of inclusion complexation between sulfonate calix[n]arenes and ethidium bromide. J INCL PHENOM MACRO 2018. [DOI: 10.1007/s10847-018-0786-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
26
|
Shahraki S, Saeidifar M, Gomroki M. Probing the
in vitro
binding mechanism between human serum albumin and La
2
O
2
CO
3
nanoparticles. IET Nanobiotechnol 2018. [DOI: 10.1049/iet-nbt.2017.0190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
| | - Maryam Saeidifar
- Department of Nanotechnology and Advanced MaterialsMaterials and Energy Research CenterKarajIran
| | | |
Collapse
|
27
|
Santi MD, Paulino Zunini M, Vera B, Bouzidi C, Dumontet V, Abin-Carriquiry A, Grougnet R, Ortega MG. Xanthine oxidase inhibitory activity of natural and hemisynthetic flavonoids from Gardenia oudiepe (Rubiaceae) in vitro and molecular docking studies. Eur J Med Chem 2017; 143:577-582. [PMID: 29207340 DOI: 10.1016/j.ejmech.2017.11.071] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/21/2017] [Accepted: 11/25/2017] [Indexed: 01/19/2023]
Abstract
Xanthine oxidase (XO), an enzyme widely distributed among mammalian tissues, is associated with the oxidation of xanthine and hypoxanthine to form uric acid. Reactive oxygen species are also released during this process, leading to oxidative damages and to the pathology called gout. Available treatments mainly based on allopurinol cause serious side effects. Natural products such as flavonoids may represent an alternative. Thus, a series of polymethoxyflavones isolated and hemisynthesized from the bud exudates of Gardenia oudiepe has been evaluated for in vitro XO inhibitory activity. Compounds 1, 2 and 3 were more active than the reference inhibitor, Allopurinol (IC50 = 0.25 ± 0.004 μM) with IC50 values of (0.004 ± 0.001) μM, (0.05 ± 0.01) μM and (0.09 ± 0.003) μM, respectively. Structure-activity relationships were established. Additionally, a molecular docking study using MOE™ tool was carried out to establish the binding mode of the most active flavones with the enzyme, showing important interactions with its catalytic residues. These promising results, suggest the use of these compounds as potential leads for the design and development of novel XO inhibitors.
Collapse
Affiliation(s)
- M D Santi
- Farmacognosia, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Haya de La Torre y Medina Allende, Edificio Ciencias II, X5000HUA Córdoba, Argentina; Instituto Multidisciplinario de Biología Vegetal (IMBIV-CONICET), Ciudad Universitaria, X5000HUA Córdoba, Argentina
| | - M Paulino Zunini
- Center of Bioinformatics, Faculty of Chemistry - UdelaR, 11800 Montevideo, Uruguay
| | - B Vera
- Center of Bioinformatics, Faculty of Chemistry - UdelaR, 11800 Montevideo, Uruguay
| | - C Bouzidi
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de L'Observatoire, 75006 Paris, France
| | - V Dumontet
- Laboratoire des Plantes Médicinales de Nouméa, CNRS-Centre IRD, BP 643, 98845 Nouméa Cedex, Nouvelle-Calédonie, France
| | - A Abin-Carriquiry
- Department of Neurochemistry, Instituto de Investigaciones Biológicas Clemente Estable, 11600 Montevideo, Uruguay
| | - R Grougnet
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de L'Observatoire, 75006 Paris, France
| | - M G Ortega
- Farmacognosia, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Haya de La Torre y Medina Allende, Edificio Ciencias II, X5000HUA Córdoba, Argentina; Instituto Multidisciplinario de Biología Vegetal (IMBIV-CONICET), Ciudad Universitaria, X5000HUA Córdoba, Argentina.
| |
Collapse
|
28
|
Shahraki S, Heydari A, Saeidifar M, Gomroki M. Biophysical and computational comparison on the binding affinity of three important nutrients to β-lactoglobulin: folic acid, ascorbic acid and vitamin K3. J Biomol Struct Dyn 2017; 36:3651-3665. [DOI: 10.1080/07391102.2017.1394222] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
| | - Ali Heydari
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran
| | - Maryam Saeidifar
- Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, Karaj, Iran
| | | |
Collapse
|
29
|
Molecular study of mucin-procyanidin interaction by fluorescence quenching and Saturation Transfer Difference (STD)-NMR. Food Chem 2017; 228:427-434. [DOI: 10.1016/j.foodchem.2017.02.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 02/02/2017] [Accepted: 02/06/2017] [Indexed: 11/18/2022]
|
30
|
Shahraki S, Shiri F, Saeidifar M. Synthesis, characterization, in silico ADMET prediction, and protein binding analysis of a novel zinc(II) Schiff-base complex: Application of multi-spectroscopic and computational techniques. J Biomol Struct Dyn 2017; 36:1666-1680. [DOI: 10.1080/07391102.2017.1334595] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | | | - Maryam Saeidifar
- Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center , Karaj, Iran
| |
Collapse
|
31
|
Sharifi M, Ezzati Nazhad Dolatabadi J, Fathi F, Zakariazadeh M, Barzegar A, Rashidi M, Tajalli H, Rashidi MR. Surface plasmon resonance and molecular docking studies of bovine serum albumin interaction with neomycin: kinetic and thermodynamic analysis. ACTA ACUST UNITED AC 2017; 7:91-97. [PMID: 28752073 PMCID: PMC5524990 DOI: 10.15171/bi.2017.12] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 05/20/2017] [Accepted: 05/24/2017] [Indexed: 11/09/2022]
Abstract
Introduction: The interactions between biomacromolecules such as serum albumin (SA) and various drugs have attracted increasing research attention in recent years. However, the study of SA with those drugs that have relatively high hydrophilicity and a lower affinity for SA could be a challenging issue. At the present study, the interaction of bovine SA (BSA) with neomycin as a hydrophilic drug has been investigated using surface plasmon resonance (SPR) and molecular docking methods. Methods: BSA was immobilized on the carboxymethyl dextran hydrogel sensor chip after activation of carboxylic groups through NHS/EDC and, then, the neomycin interaction with BSA at different concentrations (1-128 µM) was investigated. Results: Dose-response sensorgrams of BSA upon increasing concentration of neomycin has been shown through SPR analysis. The small KD value (4.96 e-7 at 40°C) demonstrated high affinity of neomycin to BSA. Thermodynamic parameters were calculated through van't Hoff equation at 4 different temperatures. The results showed that neomycin interacts with BSA via Van der Waals interactions and hydrogen bonds and increase of KD with temperature rising indicated that the binding process was entropy driven. Molecular docking study confirmed that hydrogen bond was the major intermolecular force stabilizing neomycin-BSA complex. Conclusion: The attained results showed that neomycin molecules can efficiently distribute within the body after interaction with BSA in spite of having hydrophilic properties. Besides, SPR can be considered as a useful instrument for study of the interaction of hydrophilic drugs with SA.
Collapse
Affiliation(s)
- Maryam Sharifi
- Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz, Iran
| | - Jafar Ezzati Nazhad Dolatabadi
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farzaneh Fathi
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mostafa Zakariazadeh
- Research Institute for Fundamental Sciences (RIFS), University of Tabriz, Tabriz, Iran
| | - Abolfazl Barzegar
- Research Institute for Fundamental Sciences (RIFS), University of Tabriz, Tabriz, Iran
| | - Mohammad Rashidi
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Habib Tajalli
- Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz, Iran
| | - Mohammad-Reza Rashidi
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
32
|
Shiri F, Shahraki S, Shahriyar A, Majd MH. Exploring isoxsuprine hydrochloride binding with human serum albumin in the presence of folic acid and ascorbic acid using multispectroscopic and molecular modeling methods. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 170:152-163. [DOI: 10.1016/j.jphotobiol.2017.04.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 04/10/2017] [Indexed: 02/02/2023]
|
33
|
Sharifi M, Dolatabadi JEN, Fathi F, Rashidi M, Jafari B, Tajalli H, Rashidi MR. Kinetic and thermodynamic study of bovine serum albumin interaction with rifampicin using surface plasmon resonance and molecular docking methods. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:37002. [PMID: 28253382 DOI: 10.1117/1.jbo.22.3.037002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 02/10/2017] [Indexed: 06/06/2023]
Abstract
The interaction of bovine serum albumin (BSA) with various drugs, such as antibiotics, due to the importance of BSA in drug delivery has attracted increasing research attention at present. Therefore, the aim of this study was investigation of BSA interaction with rifampicin using surface plasmon resonance (SPR) and molecular docking methods under the imitated physiological conditions ( pH = 7.4 ). BSA immobilization on carboxymethyl dextran hydrogel chip has been carried out after activation with N-hydroxysuccinimide/N-ethyl-N-(3-diethylaminopropyl) carbodiimide. The dose-response sensorgrams of BSA upon increasing concentration of refampicin were attained in SPR analysis. The high affinity of rifampicin to BSA was demonstrated by a low equilibrium constants ( K D ) value ( 3.46 × 10 ? 5 at 40°C). The process of kinetic values changing shows that affinity of BSA to rifampicin decreased with rising temperature. The positive value of both enthalpy change ( ? H ) and entropy change ( ? S ) showed that hydrophobic force plays major role in the BSA interaction with rifampicin. The positive value of ? G was indicative of nonspontaneous and enthalpy-driven binding process. In addition, according to the molecular docking study, hydrogen binding has some contributions in the interaction of rifampicin with BSA.
Collapse
Affiliation(s)
- Maryam Sharifi
- University of Tabriz, Research Institute for Applied Physics and Astronomy, Tabriz, Iran
| | - Jafar Ezzati Nazhad Dolatabadi
- Tabriz University of Medical Sciences, Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz, Iran
| | - Farzaneh Fathi
- Tabriz University of Medical Sciences, Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz, IrancTabriz University of Medical Sciences, Student Research Committee, Tabriz, Iran
| | - Mohammad Rashidi
- Tabriz University of Medical Sciences, Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz, Iran
| | - Behzad Jafari
- Tabriz University of Medical Sciences, Biotechnology Research Center, Tabriz, Iran
| | - Habib Tajalli
- University of Tabriz, Research Institute for Applied Physics and Astronomy, Tabriz, Iran
| | - Mohammad-Reza Rashidi
- Tabriz University of Medical Sciences, Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz, Iran
| |
Collapse
|
34
|
Wang J, Ma L, Zhang Y, Jiang T. Investigation of the interaction of deltamethrin (DM) with human serum albumin by multi-spectroscopic method. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.09.061] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
35
|
Liu C, He W, Chen S, Chen J, Zeng M, Qin F, He Z. Interactions of digestive enzymes and milk proteins with tea catechins at gastric and intestinal pH. Int J Food Sci Technol 2016. [DOI: 10.1111/ijfs.13276] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Chan Liu
- State Key Laboratory of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
| | - Wenjia He
- State Key Laboratory of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
| | - Saisai Chen
- State Key Laboratory of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
| | - Jie Chen
- State Key Laboratory of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
- Synergetic Innovation Center of Food Safety and Nutrition; Jiangnan University; Wuxi Jiangsu 214122 China
| | - Maomao Zeng
- State Key Laboratory of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
| | - Fang Qin
- State Key Laboratory of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
| | - Zhiyong He
- State Key Laboratory of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
| |
Collapse
|
36
|
Zhang C, Zhang G, Pan J, Gong D. Galangin competitively inhibits xanthine oxidase by a ping-pong mechanism. Food Res Int 2016; 89:152-160. [DOI: 10.1016/j.foodres.2016.07.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 07/15/2016] [Accepted: 07/24/2016] [Indexed: 10/21/2022]
|
37
|
Hamishehkar H, Hosseini S, Naseri A, Safarnejad A, Rasoulzadeh F. Interactions of cephalexin with bovine serum albumin: displacement reaction and molecular docking. BIOIMPACTS 2016; 6:125-133. [PMID: 27853676 PMCID: PMC5108985 DOI: 10.15171/bi.2016.19] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 08/07/2016] [Accepted: 08/10/2016] [Indexed: 01/30/2023]
Abstract
![]()
Introduction: The drug-plasma protein interaction is a fundamental issue in guessing and checking the serious drug side effects related with other drugs. The purpose of this research was to study the interaction of cephalexin with bovine serum albumin (BSA) and displacement reaction using site probes.
Methods: The interaction mechanism concerning cephalexin (CPL) with BSA was investigated using various spectroscopic methods and molecular modeling method. The binding sites number, n, apparent binding constant, K, and thermodynamic parameters, ΔG0, ΔH0, and ΔS0 were considered at different temperatures. To evaluate the experimental results, molecular docking modeling was calculated.
Results: The distance, r=1.156 nm between BSA and CPL were found in accordance with the Forster theory of non-radiation energy transfer (FRET) indicating energy transfer occurs between BSA and CPL. According to the binding parameters and ΔG0= negative values and ΔS0= 28.275 j mol-1K-1, a static quenching process is effective in the CPL-BSA interaction spontaneously. ΔG0 for the CPL-BSA complex obtained from the docking simulation is -28.99 kj mol-1, which is close to experimental ΔG of binding, -21.349 kj mol-1 that indicates a good agreement between the results of docking methods and experimental data.
Conclusion: The outcomes of spectroscopic methods revealed that the conformation of BSA changed during drug-BSA interaction. The results of FRET propose that CPL quenches the fluorescence of BSA by static quenching and FRET. The displacement study showed that phenylbutazon and ketoprofen displaced CPL, indicating that its binding site on albumin is site I and Gentamicin cannot be displaced from the binding site of CPL. All results of molecular docking method agreed with the results of experimental data.
Collapse
Affiliation(s)
- Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soheila Hosseini
- Biotechnology Research Center and School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abdolhossein Naseri
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Azam Safarnejad
- Biotechnology Research Center and School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farzaneh Rasoulzadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
38
|
Conformational modulation of the farnesoid X receptor by prenylflavonoids: Insights from hydrogen deuterium exchange mass spectrometry (HDX-MS), fluorescence titration and molecular docking studies. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2016; 1864:1667-1677. [PMID: 27596062 DOI: 10.1016/j.bbapap.2016.08.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 08/29/2016] [Accepted: 08/31/2016] [Indexed: 12/20/2022]
Abstract
We report on the molecular interactions of the farnesoid X receptor (FXR) with prenylflavonoids, an emerging class of FXR modulators. FXR is an attractive therapeutic target for mitigating metabolic syndromes (MetS) because FXR activates the inhibitory nuclear receptor, small heterodimer partner (SHP), thereby inhibiting both gluconeogenesis and de novo lipogenesis. We and others have shown that xanthohumol (XN), the principal prenylflavonoid of the hop plant (Humulus lupulus L.), is a FXR agonist based on its ability to affect lipid and glucose metabolism in vivo and to induces FXR target genes in biliary carcinoma cells and HEK293 cells. However, studies are currently lacking to rationalize the molecular mechanisms of FXR modulation by prenylflavonoids. We addressed this deficiency and report the first systematic study of FXR prenylflavonoid interactions. We combined hydrogen deuterium exchange mass spectrometry (HDX-MS) with computational studies for dissecting molecular recognition and conformational impact of prenylflavonoid interactions on the ligand binding domain (LBD) of human FXR. Four prenylflavonoids were tested: xanthohumol, a prenylated chalcone, two prenylated flavonones, namely isoxanthohumol (IX) and 8-prenylnaringenin (8PN), and a semisynthetic prenylflavonoid derivative, tetrahydroxanthohumol (TX). Enhancement of the HDX protection profile data by in silico predicted models of FXR prenylflavonoid complexes resulted in mapping of the prenylflavonoid interactions within the canonical ligand binding pocket. Our findings provide a foundation for the exploration of the chemical scaffolds of prenylated chalcones and flavanones as leads for future structure activity studies of this important nuclear receptor with potential relevance for ameliorating lipid metabolic disorders associated with obesity and MetS.
Collapse
|
39
|
Dumitrascu L, Stănciuc N, Bahrim GE, Aprodu I. Insights into the binding of ferulic acid to the thermally treated xanthine oxidase. LUMINESCENCE 2016. [DOI: 10.1002/bio.3099] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Loredana Dumitrascu
- Dunarea de Jos University of Galati, Faculty of Food Science and Engineering; Domnească Street 111 800201 Galati Romania
| | - Nicoleta Stănciuc
- Dunarea de Jos University of Galati, Faculty of Food Science and Engineering; Domnească Street 111 800201 Galati Romania
| | - Gabriela Elena Bahrim
- Dunarea de Jos University of Galati, Faculty of Food Science and Engineering; Domnească Street 111 800201 Galati Romania
| | - Iuliana Aprodu
- Dunarea de Jos University of Galati, Faculty of Food Science and Engineering; Domnească Street 111 800201 Galati Romania
| |
Collapse
|
40
|
Garzón A, Bravo I, Carrión-Jiménez MR, Rubio-Moraga Á, Albaladejo J. Spectroscopic study on binding of gentisic acid to bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 150:26-33. [PMID: 26010705 DOI: 10.1016/j.saa.2015.05.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 05/14/2015] [Accepted: 05/15/2015] [Indexed: 06/04/2023]
Abstract
The interaction of (gentisic acid) GA with (bovine serum albumin) BSA has been studied by different spectroscopic techniques. GA is a monoanionic specie at the working pH of 7.4, it was determined by combining UV-Vis absorption spectroscopy and theoretical calculations. A set of fluorescence quenching experiments at different temperatures was carried out employing the native fluorescence of BSA. A Stern-Volmer constant (KSV) of (2.07±0.12)×10(4) mol(-1) L and a binding constant (Ka) of (8.47±4.39)×10(3) were determined at 310 K. The static quenching caused by the BSA-GA complex formation seems to play a significant role in the overall quenching process. A single binding site on BSA for GA was observed. ΔH=-55.6±0.2 kJ mol(-1) and ΔS=-104.3±0.6 J mol(-1) K(-1) were determined in a set of experiments on the dependence of Ka with the temperature. The binding process is, therefore, spontaneous and enthalpy-driven. Van der Waals forces and hydrogen bonds could also play the major role in the binding mode. The secondary structure changes of BSA in the absence and presence of GA were studied by FTIR and UV-Vis absorption spectroscopy.
Collapse
Affiliation(s)
- Andrés Garzón
- Departamento de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Paseo de los estudiantes, s/n, 02071 Albacete, Spain.
| | - Iván Bravo
- Departamento de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Paseo de los estudiantes, s/n, 02071 Albacete, Spain
| | - M Rosario Carrión-Jiménez
- Departamento de Química Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Paseo de los estudiantes, s/n, 02071 Albacete, Spain
| | - Ángela Rubio-Moraga
- Instituto Botánico, Facultad de Farmacia, Universidad de Castilla-La Mancha, Paseo de los estudiantes, s/n, 02071 Albacete, Spain
| | - José Albaladejo
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Avenida Camilo José Cela, 10, 13071 Ciudad Real, Spain
| |
Collapse
|
41
|
Yu X, Jiang B, Liao Z, Jiao Y, Yi P. Study on the interaction between Besifloxacin and bovine serum albumin by spectroscopic techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 149:116-121. [PMID: 25950636 DOI: 10.1016/j.saa.2015.04.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 03/17/2015] [Accepted: 04/14/2015] [Indexed: 06/04/2023]
Abstract
The interaction between Besifloxacin (BFLX) and bovine serum albumin (BSA) was investigated by spectroscopic (fluorescence, UV-Vis absorption and circular dichroism) techniques under imitated physiological conditions. The experiments were conducted at different temperatures (298, 304 and 310 K) and the results showed that the BFLX caused the fluorescence quenching of BSA through a static quenching procedure. The binding constant (Ka), binding sites (n) were obtained. The corresponding thermodynamic parameters (ΔH, ΔS and ΔG) of the interaction system were calculated at different temperatures. The results revealed that the binding process was spontaneous and the acting force between BFLX and BSA were mainly electrostatic forces. According to Förster non-radiation energy transfer theory, the binding distance between BFLX and BSA was calculated to be 4.96 nm. What is more, both synchronous fluorescence and circular dichroism spectra confirmed conformational changes of BSA.
Collapse
Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; Key Laboratory of Computational Physical Sciences, Fudan University, Ministry of Education, Shanghai, China.
| | - Bingfei Jiang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Zhixi Liao
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Yue Jiao
- Nanjing Chemipioneer Pharma&Tech Co., Ltd, Nanjing 210032, China
| | - Pinggui Yi
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| |
Collapse
|
42
|
Yu X, Liao Z, Jiang B, Hu X, Li X. Spectroscopic analyses on interaction of bovine serum albumin with novel spiro[cyclopropane-pyrrolizin]. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:129-136. [PMID: 25218221 DOI: 10.1016/j.saa.2014.08.098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/09/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
The interaction between novel spiro[cyclopropane-pyrrolizin] (NSCP) and bovine serum albumin (BSA) was analyzed by fluorescence and ultraviolet-visible (UV-Vis) spectroscopy at 298 K, 304 K and 310 K under simulative physiological conditions. The results showed that NSCP can effectively quench the intrinsic fluorescence of BSA via static quenching. The binding constants, binding sites of NSCP with BSA were calculated. Hydrogen binds and van der Waals force played a major role in stabilizing the complex and the binding reaction were spontaneous. According to the Förster non-radiation energy transfer theory, the average binding distances between NSCP and BSA were obtained. What is more, the synchronous fluorescence spectra indicated that the conformation of BSA has been changed.
Collapse
Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China; Key Laboratory of Computational Physical Sciences (Fudan University), Ministry of Education, Shanghai 200433, China.
| | - Zhixi Liao
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Bingfei Jiang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Xiaolian Hu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Xiaofang Li
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| |
Collapse
|
43
|
Yang L, Lv J, Wang X, Zhang J, Li Q, Zhang T, Zhang Z, Zhang L. Direct interactions in the recognition between the environmental estrogen bisphenol AF and human serum albumin. J Mol Recognit 2015; 28:459-66. [DOI: 10.1002/jmr.2463] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Revised: 10/29/2014] [Accepted: 01/14/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Lijun Yang
- College of Chemistry; Liaoning University; Shenyang 110036 China
| | - Junna Lv
- College of Chemistry; Liaoning University; Shenyang 110036 China
| | - Xin Wang
- College of Chemistry; Liaoning University; Shenyang 110036 China
| | - Jing Zhang
- College of Chemistry; Liaoning University; Shenyang 110036 China
| | - Qi Li
- College of Chemistry; Liaoning University; Shenyang 110036 China
| | - Tingting Zhang
- College of Chemistry; Liaoning University; Shenyang 110036 China
| | - Zhenzhen Zhang
- College of Chemistry; Liaoning University; Shenyang 110036 China
| | - Lei Zhang
- College of Chemistry; Liaoning University; Shenyang 110036 China
| |
Collapse
|
44
|
Wang Y, Zhang G, Pan J, Gong D. Novel insights into the inhibitory mechanism of kaempferol on xanthine oxidase. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:526-534. [PMID: 25539132 DOI: 10.1021/jf505584m] [Citation(s) in RCA: 177] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Xanthine oxidase (XO), a key enzyme in purine catabolism, is widely distributed in human tissues. It can catalyze xanthine to generate uric acid and cause hyperuricemia and gout. Inhibition kinetics assay showed that kaempferol inhibited XO activity reversibly in a competitive manner. Strong fluorescence quenching and conformational changes of XO were found due to the formation of a kaempferol-XO complex, which was driven mainly by hydrophobic forces. The molecular docking further revealed that kaempferol inserted into the hydrophobic cavity of XO to interact with some amino acid residues. The main inhibition mechanism of kaempferol on XO activity may be due to the insertion of kaempferol into the active site of XO occupying the catalytic center of the enzyme to avoid the entrance of the substrate and inducing conformational changes of XO. In addition, luteolin exhibited a stronger synergistic effect with kaempferol than did morin at the lower concentration.
Collapse
Affiliation(s)
- Yajie Wang
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, China
| | | | | | | |
Collapse
|
45
|
Dias R, Perez-Gregorio R, Mateus N, De Freitas V. The interaction between tannins and gliadin derived peptides in a celiac disease perspective. RSC Adv 2015. [DOI: 10.1039/c5ra02968f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The demonstration that food tannins are able to complex with gliadin-derived peptides, in a way that is dependent on both structural features, highlights their potential as modulators of celiac disease.
Collapse
Affiliation(s)
- Ricardo Dias
- LAQV-REQUIMTE
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- 4169-007 Porto
- Portugal
| | - Rosa Perez-Gregorio
- LAQV-REQUIMTE
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- 4169-007 Porto
- Portugal
| | - Nuno Mateus
- LAQV-REQUIMTE
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- 4169-007 Porto
- Portugal
| | - Victor De Freitas
- LAQV-REQUIMTE
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- 4169-007 Porto
- Portugal
| |
Collapse
|
46
|
Yu X, Liao Z, Jiang B, Zheng L, Li X. Study on the interaction between carbonyl-fused N-confused porphyrin and bovine serum albumin by spectroscopic techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 133:372-377. [PMID: 24967543 DOI: 10.1016/j.saa.2014.05.085] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 05/12/2014] [Accepted: 05/25/2014] [Indexed: 06/03/2023]
Abstract
The interaction between carbonyl-fused N-confused porphyrin (CF-NCP) and bovine serum albumin (BSA) was investigated by fluorescence and ultraviolet-visible (UV-Vis) spectroscopy. The results indicated that CF-NCP has strong ability to quench the intrinsic fluorescence of BSA by forming complexes. The binding constants (Ka), binding sites (n) were obtained. The corresponding thermodynamic parameters (ΔH, ΔS and ΔG) of the interaction system were calculated at three different temperatures. The results revealed that the binding process is spontaneous, and the acting force between CF-NCP and BSA were mainly electrostatic forces. According to Förster non-radiation energy transfer theory, the binding distance between CF-NCP and BSA was calculated to be 4.37nm. What is more, the conformation of BSA was observed from synchronous fluorescence spectroscopy.
Collapse
Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China; Key Laboratory of Computational Physical Sciences, Fudan University, Ministry of Education, Shanghai, China.
| | - Zhixi Liao
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Bingfei Jiang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Lingyi Zheng
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Xiaofang Li
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| |
Collapse
|
47
|
Yu X, Liao Z, Yao Q, Liu H, Xie W. Spectroscopic studies on the interaction of Phacolysin and bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 127:231-236. [PMID: 24632176 DOI: 10.1016/j.saa.2014.02.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 01/29/2014] [Accepted: 02/11/2014] [Indexed: 06/03/2023]
Abstract
The interaction between Phacolysin (PCL) and bovine serum albumin (BSA) under imitated physiological conditions was investigated by spectroscopic (fluorescence, UV-Vis absorption and Circular dichroism) techniques. The experiments were conducted at different temperatures (294K, 302K, 306K and 310K) and the results showed that the PCL caused the fluorescence quenching of BSA through a static quenching procedure. The binding constant (Ka), binding sites (n) were obtained. The corresponding thermodynamic parameters (ΔH, ΔS and ΔG) of the interaction system were calculated at different temperatures. The results revealed that the binding process was spontaneous and the acting force between PCL and BSA were mainly hydrogen bonding and van der Waals forces. According to Förster non-radiation energy transfer theory, the binding distance between PCL and BSA was calculated to be 2.41nm. What is more, both synchronous fluorescence and Circular dichroism spectra confirmed the interaction, which indicated the conformational changes of BSA.
Collapse
Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China; Key Laboratory of Computational Physical Sciences, Fudan University, Ministry of Education, Shanghai, China.
| | - Zhixi Liao
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Qing Yao
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Heting Liu
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Wenlin Xie
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| |
Collapse
|
48
|
Biçer E, Özdemir S. Interaction thermodynamics of rutin (vitamin P) with basic L-amino acids at physiological pH: the effect of temperature on the affinity order. RUSS J ELECTROCHEM+ 2014. [DOI: 10.1134/s1023193514060032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
49
|
Liu R, Cheng Z, Jiang X. Comparative studies on the interactions of dihydroartemisinin and artemisinin with bovine serum albumin using spectroscopic methods. LUMINESCENCE 2014; 29:1033-46. [PMID: 24804646 DOI: 10.1002/bio.2655] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 12/11/2013] [Accepted: 01/24/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Rong Liu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province; China West Normal University; Nanchong 637002 China
| | - Zhengjun Cheng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province; China West Normal University; Nanchong 637002 China
| | - Xiaohui Jiang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province; China West Normal University; Nanchong 637002 China
| |
Collapse
|
50
|
Yu X, Liao Z, Yao Q, Liu H, Li X, Yi P. The investigation of the interaction between Tropicamide and bovine serum albumin by spectroscopic methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 118:331-336. [PMID: 24056312 DOI: 10.1016/j.saa.2013.08.103] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 08/15/2013] [Accepted: 08/23/2013] [Indexed: 06/02/2023]
Abstract
The fluorescence and ultraviolet-visible (UV-Vis) spectroscopy were explored to study the interaction between Tropicamide (TA) and bovine serum albumin (BSA) at three different temperatures (292, 301 and 310K) under imitated physiological conditions. The experimental results showed that the fluorescence quenching mechanism between TA and BSA was static quenching procedure. The binding constant (Ka), binding sites (n) were obtained. The corresponding thermodynamic parameters (ΔH, ΔS and ΔG) of the interaction system were calculated at different temperatures. The results revealed that the binding process is spontaneous, hydrogen binds and vander Waals were the main force to stabilize the complex. According to Förster non-radiation energy transfer theory, the binding distance between TA and BSA was calculated to be 4.90 nm. Synchronous fluorescence spectroscopy indicated the conformation of BSA changed in the presence of TA. Furthermore, the effect of some common metal ions (Mg(2+), Ca(2+), Cu(2+), and Ni(2+)) on the binding constants between TA and BSA were examined.
Collapse
Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China.
| | | | | | | | | | | |
Collapse
|