1
|
Wang H, Lv R, Gao S, Wang Y, Hao N, An Y, Li Y, Ji Y, Cao M. Investigation of the interaction between the functionalized mesoporous silica nanocarriers and bovine serum albumin via multi-spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 293:122421. [PMID: 36801729 DOI: 10.1016/j.saa.2023.122421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/09/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
It is well known that the physicochemical properties of nanocarriers, which are closely related to the surface modification of nanoparticles, have crucial impacts on their biological effects. Herein, the interaction between functionalized degradable dendritic mesoporous silica nanoparticles (DDMSNs) and bovine serum albumin (BSA) was investigated for probing into the nanocarriers' potential toxicity using multi-spectroscopy such as ultraviolet/visible (UV/Vis), synchronous fluorescence, Raman and circular dichroism (CD) spectroscopy. BSA, owing to its structural homology and high sequence similarity with HSA, was employed as the model protein to study the interactions with DDMSNs, amino-modified DDMSNs (DDMSNs-NH2) and hyaluronic acid (HA) coated nanoparticles (DDMSNs-NH2-HA). It was found that the static quenching behavior of DDMSNs-NH2-HA to BSA was accompanied by an endothermic and hydrophobic force-driven thermodynamic process, which was confirmed by fluorescence quenching spectroscopic studies and thermodynamic analysis. Furthermore, the conformational variations of BSA upon interaction with nanocarriers were observed by combination of UV/Vis, synchronous fluorescence, Raman and CD spectroscopy. The microstructure of amino residues in BSA changed due to the existence of nanoparticles, for example, the amino residues and hydrophobic groups exposed to microenvironment and the alpha helix (α-helix) content of BSA decreased. Specially, through thermodynamic analysis, the diverse binding modes and driving forces between nanoparticles and BSA were discovered because of different surface modifications on DDMSNs, DDMSNs-NH2 and DDMSNs-NH2-HA. We believe that this work can promote the interpretation of mutual impact between nanoparticles and biomolecules, which will be in favor of predicting the biological toxicity of nano-DDS and engineering functionalized nanocarriers.
Collapse
Affiliation(s)
- Haohao Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Ruihong Lv
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Shanshan Gao
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Yuan Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Ning Hao
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Yingli An
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Yichen Li
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Yongsheng Ji
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
| | - Mingzhuo Cao
- Academy of Chinese Medicine Science, Henan University of Chinese Medicine, Zhengzhou, Henan 450046, China.
| |
Collapse
|
2
|
Osman MM, El-Shaheny R, Ibrahim FA. Perception of the interaction behavior between pepsin and the antimicrobial drug secnidazole with combined experimental spectroscopy and computer-aided techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 291:122336. [PMID: 36680834 DOI: 10.1016/j.saa.2023.122336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 12/17/2022] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
Drug-pepsin interaction possibly affects pepsin activity, leads to undesirable shift of its functionality, and likely induces adverse effects in the gastrointestinal tract. The present study aims at exploring the interaction of pepsin with the antiprotozoal/antibacterial drug secnidazole adopting a combination of experimental spectroscopy and computational techniques. For this purpose, different spectroscopic methods including fluorescence, synchronous fluorescence, UV-Visible absorption, and infrared spectroscopy were adopted and coordinated with in silico analysis via molecular docking. The employed synchronized approaches evidenced that; pepsin interacted with secnidazole via static mechanism at stomach pH inferring some consequent conformational changes in the structure of pepsin. Thermodynamic study of drug-pepsin interaction demonstrated that the interaction is spontaneous via van der Waals and hydrogen bonding interaction and the orientation of ligand within pepsin cavity was illustrated by molecular docking. The synchronous fluorescence study proved that tyrosine amino acid residues were involved in the interaction more than tryptophan amino acid residues. Eventually, the combined experimental and molecular docking approaches suggest that secnidazole interacts with pepsin and alter its structure, that finding correlates to gastrointestinal side effects related to secnidazole oral administration.
Collapse
Affiliation(s)
- Mohamed M Osman
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Rania El-Shaheny
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Fawzia A Ibrahim
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| |
Collapse
|
3
|
Karthikeyan S, Grishina M, Kandasamy S, Mangaiyarkarasi R, Ramamoorthi A, Chinnathambi S, Pandian GN, John Kennedy L. A review on medicinally important heterocyclic compounds and importance of biophysical approach of underlying the insight mechanism in biological environment. J Biomol Struct Dyn 2023; 41:14599-14619. [PMID: 36914255 DOI: 10.1080/07391102.2023.2187640] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 02/12/2023] [Indexed: 03/16/2023]
Abstract
Heterocyclic derivatives have more interesting biological properties which hold a remarkable place in pharmaceutical industries due to their unique physiochemical properties and ease of adaption in various biological environments. Of many, the above-said derivatives have been recently examined for their promising action against a few malignancies. Specifically, anti-cancer research has benefited from these derivatives' natural flexibility and dynamic core scaffold. In any case, concerning some other promising anti-cancer drugs, heterocyclic derivative doesn't come without deficiencies. To be a successful drug candidate it should poses Absorption, Distribution, Metabolism and Eliminations (ADME) parameter, and must also have good binding interaction towards carrier protein as well as DNA and less in toxic nature, economically feasible. In this review, we described the overview of biologically important heterocyclic derivatives and their main application in medicine. Further, we focus types of biophysical techniques to understand the binding interaction mechanism.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Subramani Karthikeyan
- Division of Physics, School of Advanced Sciences, Vellore Institute of Technology University, Chennai, India
- Centre for Healthcare Advancement, Innovation and Research, Vellore Institute of Technology University, Chennai, India
| | - Maria Grishina
- Laboratory of Computational Modelling of Drugs, South Ural State University, Chelyabinsk, Russia
| | | | | | - Anitha Ramamoorthi
- Department of Chemistry, Velammal Intitute of Technology, Velammal Knowledge Park, Panchetti, India
| | - Shanmugavel Chinnathambi
- Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University, Kyoto, Japan
| | - Ganesh N Pandian
- Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University, Kyoto, Japan
- Department of Molecular Engineering, Kyoto University, Kyoto, Japan
| | - L John Kennedy
- Division of Physics, School of Advanced Sciences, Vellore Institute of Technology University, Chennai, India
| |
Collapse
|
4
|
Sharma S, Takkella D, Kumar P, Gavvala K. Spectroscopic analysis to identify the binding site for Rifampicin on Bovine Serum Albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 283:121721. [PMID: 35964352 DOI: 10.1016/j.saa.2022.121721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
This article reports the interaction of rifampicin, one of the important antituberculosis drugs, with Bovine Serum Albumin (BSA). Herein, we have monitored the fluorescence properties of tryptophan (Trp) residue in BSA to understand the interactions between protein and rifampicin. Fluorescence intensity of BSA was quenched tremendously upon interacting with the drug. Using steady state and time-resolved spectroscopic tools the static and dynamic nature of quenching have been characterised. Time correlated single photon counting technique confirmed that out of two lifetime components ∼6.2 ns and ∼2.8 ns of BSA, the rifampicin has affected only the shorter lifetime component a lot that was assigned to Trp-213 residue. Hence, it was thought that the drug must have been located near to the amino acid residue. Molecular docking studies have revealed the structural information of drug-protein complex which supported the above conjecture, confirming the nearest tryptophan as Trp-213 to the complexing rifampicin molecule.
Collapse
Affiliation(s)
- Sudhanshu Sharma
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
| | - Dineshbabu Takkella
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
| | - Pintu Kumar
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
| | - Krishna Gavvala
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India.
| |
Collapse
|
5
|
Chakraborty G. Red emitting fluorogenic dye as an efficient turn-on probe for milk allergen. Int J Biol Macromol 2022; 221:1527-1535. [PMID: 36122782 DOI: 10.1016/j.ijbiomac.2022.09.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 09/14/2022] [Accepted: 09/14/2022] [Indexed: 11/24/2022]
Abstract
Development of simple, fast and non-destructive technique such as fluorescence based method for the quantification of milk allergens in various dairy products is a highly rewarding task. In this contribution, a red emitting fluorogenic dye, quinaldine red (QR) is reported for the detection and quantification of a milk allergen, beta lactoglobulin (β-LG) in milk and whey matrices, utilizing its high selectivity and sensitivity towards β-LG. Detail spectroscopic investigation reveals that binding of QR to the hydrophobic calyx site of β-LG protein substantially reduces the torsional agility and propensity of TICT state formation of QR, rendering the dye highly fluorescent in nature. This enables estimation of β-LG with LOD 52.1(±0.9) nM in buffer solution and 0.21(±0.01) μM in 5 % bovine milk matrix respectively. Additionally, high selectivity and sensitivity, excellent repeatability, quick response, and emission in the biologically favorable red spectral region make QR based fluorometric quantification of β-LG a highly attractive choice. Finally, the estimated β-LG concentrations in milk and whey matrices from fluorometric titration and densitometry methods are found to match excellently with each other, suggesting potential of QR as an efficient turn-on fluorescent probe for the quantification of β-LG (milk allergen) in various dairy products.
Collapse
Affiliation(s)
- Goutam Chakraborty
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
| |
Collapse
|
6
|
Sohtun WP, Kathiravan A, Asha Jhonsi M, Aashique M, Bera S, Velusamy M. Synthesis, crystal structure, BSA binding and antibacterial studies of Ni(II) complexes derived from dithiocarbazate based ligands. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
7
|
Ding Y, Xia S, Zhang H, Chen Q, Niu B. Loureirin B activates GLP-1R and promotes insulin secretion in Ins-1 cells. J Cell Mol Med 2020; 25:855-866. [PMID: 33300675 PMCID: PMC7812269 DOI: 10.1111/jcmm.16138] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 10/21/2020] [Accepted: 11/04/2020] [Indexed: 12/12/2022] Open
Abstract
Loureirin B (LB) is a natural product derived from Sanguis draconis, which has hypoglycaemic effects. In order to research the possible target of LB in the treatment of diabetes, molecular docking was used to simulate the interaction between LB and potential targets, and among them, glucagon‐like peptide‐1 receptor (GLP‐1R) had the optimal results. Further, spectroscopy and surface plasmon resonance (SPR) experiments were applied to detect the interaction between LB and GLP‐1R. Ultimately, after GLP‐1R siRNA interfering the expression of GLP‐1R in Ins‐1 cell, the promoting insulin secretion of LB was weaken, which directly proved that GLP‐1R plays an important role. These results show that LB promotes insulin secretion of Ins‐1 cells through GLP‐1R. Hence, the strategy of LB as a prodrug will provide a potential approach for non‐peptide GLP‐1R agonist.
Collapse
Affiliation(s)
- Yanting Ding
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China.,Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - Sijing Xia
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - Han Zhang
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - Qin Chen
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - Bing Niu
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| |
Collapse
|
8
|
Li XF, Yang YQ, Li YX, Yang HX, Zhao WF, Meng XR. Synthesis, crystal structure, and BSA binding studies of new Co(II) and Ni(II) complexes of 2-(hydroxymethyl)-1H-imidazole-4,5-dicarboxylate. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119469] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
9
|
Li XF, Ma LG, Yang YQ, Liu YJ, Meng XR, Yang HX. Synthesis, crystal structure and bovine serum albumin–binding studies of a new Cd(II) complex incorporating 2,2′-(propane-1,3-diyl)bis(1H-imidazole-4,5-dicarboxylate). JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819895240] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A new Cd(II) complex, [Cd(H4pbidc)(H2O)] n (1), incorporating 2,2′-(propane-1,3-diyl)bis(1H- imidazole-4,5-dicarboxylic acid) (H6pbidc) was synthesized and characterized by elemental analysis, infrared spectra and X-ray single-crystal diffraction. In complex 1, each Cd(II) ion is hepta-coordinated, showing a significantly distorted pentagonal-bipyramidal coordination environment. Adjacent Cd(II) ions are alternately joined through two carboxylate oxygen atoms and two bridging water molecules resulting in a one-dimensional chain structure. In the solid state, adjacent chains are further linked by hydrogen bonds, forming a three-dimensional supramolecular architecture. Meanwhile, the interactions of complex 1 with bovine serum albumin were analysed by fluorescence measurements under physiological conditions. The results indicated that the fluorescence intensity of bovine serum albumin was decreased considerably upon the addition of complex 1 through a static quenching mechanism with formation of one binding site. The negative values of the thermodynamic parameters including enthalpy change (Δ H), entropy change (Δ S) and Gibbs free energy change (Δ G) showed that hydrogen bonding and van der Waals forces were the main interactions in the binding of complex 1 to bovine serum albumin, and the binding process is spontaneous in thermodynamics.
Collapse
Affiliation(s)
- Xiao-Fei Li
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, P.R. China
| | - Li-Gang Ma
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, P.R. China
| | - Yan-Qiu Yang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, P.R. China
| | - Yan-Ju Liu
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, P.R. China
| | - Xiang-Ru Meng
- College of Chemistry, Zhengzhou University, Zhengzhou, P.R. China
| | - Huai-Xia Yang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, P.R. China
| |
Collapse
|
10
|
Ma R, Guo DX, Li HF, Liu HX, Zhang YR, Ji JB, Xing J, Wang SQ. Spectroscopic methodologies and molecular docking studies on the interaction of antimalarial drug piperaquine and its metabolites with human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117158. [PMID: 31181505 DOI: 10.1016/j.saa.2019.117158] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 05/19/2019] [Accepted: 05/25/2019] [Indexed: 06/09/2023]
Abstract
Artemisinin-based combination therapy is widely used for the treatment of uncomplicated Plasmodium falciparum malaria, and piperaquine (PQ) is one of the important partner drugs. During the biotransformation of PQ, M1 (N-oxidation product), M2 (N-oxidation product), M3 (carboxylic acid product), M4 (N-dealkylation product), and M5 (N-oxidated product of M4) are formed by cytochrome P450 pathways. Despite decades of clinical use, the interactions between PQ and its main metabolites (PQs) with human serum albumin (HSA) have not been reported. In the present study, the binding of PQs with HSA under physiological conditions was investigated systematically through fluorescence, circular dichroism (CD) spectroscopy, and molecular docking methods. The experimental results show that the intrinsic fluorescence quenching of HSA was induced by those compounds resulting from the formation of stable HSA-compound complexes. The main forces involved in the interactions between PQ, M1, and M2 which bind to HSA were hydrogen s and van der Waals forces, while the interactions of M3, M4, and M5 were driven by hydrophobic forces. The main binding sites of the compounds to HSA were also examined by classical fluorescent marker experiments and molecular docking studies. Binding constants (Kb) revealed that the affinities of the PQ, M1, M2, M3, and M4 to HSA were stronger than that of M5. Additionally, the binding rates of PQs with HSA were determined by ultrafiltration methods. Consistent with the binding constant results, the binding rate of M5 was lower than the binding rates of PQ, M1, M2, M3, and M4. Furthermore, PQs binding to HSA led to conformational and structural alterations of HSA, as revealed by multi-spectroscopic studies. In order to investigate one possible mechanism by which PQs inhibit the growth of malaria-causing Plasmodium parasites, 1H NMR spectroscopy was performed to investigate the interaction of the PQs with heme. This study is beneficial to enhance our understanding of the ecotoxicology and environmental behaviors of PQ and its metabolites.
Collapse
Affiliation(s)
- Rui Ma
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Dong-Xiao Guo
- Shandong Institute for Food and Drug Control, Jinan, Shandong 250101, China
| | - Hui-Fen Li
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Hui-Xiang Liu
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Yun-Rui Zhang
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Jian-Bo Ji
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Jie Xing
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Shu-Qi Wang
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China.
| |
Collapse
|
11
|
Janek T, Rodrigues LR, Gudiña EJ, Czyżnikowska Ż. Metal-Biosurfactant Complexes Characterization: Binding, Self-Assembly and Interaction with Bovine Serum Albumin. Int J Mol Sci 2019; 20:ijms20122864. [PMID: 31212764 PMCID: PMC6627489 DOI: 10.3390/ijms20122864] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/04/2019] [Accepted: 06/10/2019] [Indexed: 12/21/2022] Open
Abstract
Studies on the specific and nonspecific interactions of biosurfactants with proteins are broadly relevant given the potential applications of biosurfactant/protein systems in pharmaceutics and cosmetics. The aim of this study was to evaluate the interactions of divalent counterions with the biomolecular anionic biosurfactant surfactin-C15 through molecular modeling, surface tension and dynamic light scattering (DLS), with a specific focus on its effects on biotherapeutic formulations. The conformational analysis based on a semi-empirical approach revealed that Cu2+ ions can be coordinated by three amide nitrogens belonging to the surfactin-C15 cycle and one oxygen atom of the aspartic acid from the side chain of the lipopeptide. Backbone oxygen atoms mainly involve Zn2+, Ca2+ and Mg2+. Subsequently, the interactions between metal-coordinated lipopeptide complexes and bovine serum albumin (BSA) were extensively investigated by fluorescence spectroscopy and molecular docking analysis. Fluorescence results showed that metal-lipopeptide complexes interact with BSA through a static quenching mechanism. Molecular docking results indicate that the metal-lipopeptide complexes are stabilized by hydrogen bonding and van der Waals forces. The biosurfactant-protein interaction properties herein described are of significance for metal-based drug discovery hypothesizing that the association of divalent metal ions with surfactin allows its interaction with bacteria, fungi and cancer cell membranes with effects that are similar to those of the cationic peptide antibiotics.
Collapse
Affiliation(s)
- Tomasz Janek
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland.
| | - Lígia R Rodrigues
- Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
| | - Eduardo J Gudiña
- Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
| | - Żaneta Czyżnikowska
- Department of Inorganic Chemistry, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wrocław, Poland.
| |
Collapse
|
12
|
Qi Q, Yang C, Xia Y, Guo S, Song D, Su H. Preferential Binding of π-Ligand Porphyrin Targeting 5'-5' Stacking Interface of Human Telomeric RNA G-Quadruplex Dimer. J Phys Chem Lett 2019; 10:2143-2150. [PMID: 30995046 DOI: 10.1021/acs.jpclett.9b00637] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Human telomeric RNA (TERRA) containing thousands of G-rich repeats has the propensity to form parallel-stranded G-quadruplexes. The emerging crucial roles of TERRA G-quadruplexes in RNA biology fuel increasing attention for studying anticancer ligand binding with such structures, which, however, remains scarce. Here we utilized multiple steady-state and time-resolved spectroscopy analyses in conjunction with NMR methods and investigated thoroughly the binding behavior of TMPyP4 to a TERRA G-quadruplex dimer formed by the 10-nucleotide sequence r(GGGUUAGGGU). It is clearly identified that TMPyP4 intercalates into the 5'-5' stacking interface of two G-quadruplex blocks with a binding stoichiometry of 1:1 and binding constant of 1.92 × 106 M-1. This is consistent with the unique TERRA structural features of the enlarged π-π stacking plane of the A·(G·G·G·G)·A hexad at 5'-ends of each G-quadruplex block. The preferential binding of π-ligand porphyrin to the 5'-5' stacking interface of the native TERRA G-quadruplex dimer is first ascertained by the combination of dynamics and structural characterization.
Collapse
Affiliation(s)
- Qige Qi
- Beijing National Laboratory for Molecular Science, Institute of Chemistry , Chinese Academy of Science , Beijing 100190 , China
- University of Chinese Academy of Science , Beijing 100049 , China
| | - Chunfan Yang
- College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Ye Xia
- College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Shaoshi Guo
- College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Di Song
- Beijing National Laboratory for Molecular Science, Institute of Chemistry , Chinese Academy of Science , Beijing 100190 , China
| | - Hongmei Su
- College of Chemistry , Beijing Normal University , Beijing 100875 , China
| |
Collapse
|
13
|
Baghaee PT, Divsalar A, Chamani J, Donya A. Human serum albumin–malathion complex study in the presence of silver nanoparticles at different sizes by multi spectroscopic techniques. J Biomol Struct Dyn 2018; 37:2254-2264. [DOI: 10.1080/07391102.2018.1491416] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Parisa Teimoori Baghaee
- Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Adeleh Divsalar
- Department of Cell & Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Jamshikhan Chamani
- Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Atena Donya
- Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| |
Collapse
|
14
|
Guo Y, Lu J, Kang Q, Fang M, Yu L. Fabrication of Biocompatible, Luminescent Supramolecular Structures and Their Applications in the Detection of Dopamine. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9195-9202. [PMID: 30001135 DOI: 10.1021/acs.langmuir.8b01548] [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
Supramolecular materials assembled by amide-functionalized surface active ionic liquid, N-dodecyl- N'-acetamido imidazolium bromide ([C12ImCONH2]Br), and europium-containing polyoxometalates (Eu-POM) were fabricated in aqueous solution by a one-step method via ionic self-assembly strategy. The [C12ImCONH2]Br/Eu-POM supramolecular structures exhibit favorable fluorescence properties and represent a 15-fold increase in quantum yield (∼13.68%) compared to Eu-POM. Besides, more fluorescence was quenched obviously with the increasing concentration of dopamine (DA) (within the range of 0-100 μM), based on which DA monitoring could be achieved. The detection limit was identified to be 0.1 μM. The supramolecular nanoparticles are highly specific for the detection of DA. In addition, the hybrid assemblies display not only low cytotoxicity but also excellent biocompatibility to MC3T3-E1 cells. As a result, as-prepared supramolecular materials with these superior properties show the promising application in some fields such as biochemistry and biomedical science.
Collapse
Affiliation(s)
- Yongxian Guo
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education , Shandong University , Jinan 250100 , P.R. China
| | - Jie Lu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education , Shandong University , Jinan 250100 , P.R. China
| | - Qi Kang
- College of Chemistry, Chemical Engineering and Materials Science , Shandong Normal University , Jinan 250014 , P. R. China
| | - Ming Fang
- Department of Chemistry , University of Houston , Houston 77204 , United States
| | - Li Yu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education , Shandong University , Jinan 250100 , P.R. China
| |
Collapse
|
15
|
Interaction of zearalenone with bovine serum albumin as determined by fluorescence quenching. Mycotoxin Res 2017; 34:39-48. [DOI: 10.1007/s12550-017-0297-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 10/25/2017] [Accepted: 10/26/2017] [Indexed: 12/25/2022]
|
16
|
Biophysical and In Silico Studies of the Interaction between the Anti-Viral Agents Acyclovir and Penciclovir, and Human Serum Albumin. Molecules 2017; 22:molecules22111906. [PMID: 29113080 PMCID: PMC6150291 DOI: 10.3390/molecules22111906] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 10/29/2017] [Accepted: 10/30/2017] [Indexed: 12/19/2022] Open
Abstract
Acyclovir (ACV) and penciclovir (PNV) have been commonly used during the last few decades as potent antiviral agents, especially for the treatment of herpes virus infections. In the present research their binding properties with human serum albumin (HSA) were studied using different advanced spectroscopic and in-silico methods. The interactions between ACV/PNV and HSA at the three investigated temperatures revealed a static type of binding. Extraction of the thermodynamic parameters of the ACV-HSA and PNV-HSA systems from the measured spectrofluorimetric data demonstrated spontaneous interactions with an enthalpy change (∆H0) of −1.79 ± 0.29 and −4.47 ± 0.51 kJ·mol−1 for ACV and PNV, respectively. The entropy change (∆S0) of 79.40 ± 0.95 and 69.95 ± 1.69 J·mol−1·K−1 for ACV and PNV, respectively, hence supported a potential contribution of electrostatic binding forces to the ACV-HSA and PNV-HSA systems. Putative binding of ACV/PNV to HSA, using previously reported site markers, showed that ACV/PNV were bound to HSA within subdomains IIA and IIIA (Sudlow sites I and II). Further confirmation was obtained through molecular docking studies of ACV-HSA and PNV-HSA binding, which confirmed the binding site of ACV/PNV with the most stable configurations of ACV/PNV within the HSA. These ACV/PNV conformers were shown to have free energies of −25.61 and −22.01 kJ·mol−1 for ACV within the HSA sites I and II and −22.97 and −26.53 kJ·mol−1 for PNV in HSA sites I and II, with hydrogen bonding and electrostatic forces being the main binding forces in such conformers.
Collapse
|
17
|
Bhowal AC, Kundu S. A comparative study on intrinsic fluorescence of BSA and lysozyme proteins in presence of different divalent ions from their solution and thin film conformations. LUMINESCENCE 2017; 33:267-276. [PMID: 29052335 DOI: 10.1002/bio.3409] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 06/21/2017] [Accepted: 08/24/2017] [Indexed: 01/04/2023]
Abstract
Optical emission behaviours of lysozyme and bovine serum albumin, from bulk and thin film geometry, were studied in the presence of three different divalent ions (Mg2+ , Ca2+ or Ba2+ ) using different spectroscopic [steady-state fluorescence, UV-Vis and Fourier transform infra-red (FTIR)] techniques. Additionally, protein thin films on silicon surfaces were prepared and morphological studies were carried out using atomic force microscopy. Dynamic quenching was mainly identified for both proteins in the presence of Mg2+ , Ca2+ and Ba2+ ions. The molecular conformation of the proteins was modified in thin films compared with that in solution, consequently quenching efficiencies also varied. ATR-FTIR studies confirmed the conformational changes of proteins in the presence of all divalent ions. All metal ions used were divalent in nature and belonged to the same group of the periodic table but, depending on their individual characteristics such as electron affinity, ionic radius, etc., the magnitude of the protein and hydrated ion interaction varied and accordingly the quenching efficiency was modified. Quenching was maximum for Ca2+ ions, followed by the other two ions. Our study clearly illustrates the geometry-dependent physical and biological functions of proteins.
Collapse
Affiliation(s)
- Ashim Chandra Bhowal
- Soft Nano Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam, India
| | - Sarathi Kundu
- Soft Nano Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam, India
| |
Collapse
|
18
|
Yasmeen S, Riyazuddeen, Qais FA. Unraveling the thermodynamics, binding mechanism and conformational changes of HSA with chromolyn sodium: Multispecroscopy, isothermal titration calorimetry and molecular docking studies. Int J Biol Macromol 2017; 105:92-102. [PMID: 28690169 DOI: 10.1016/j.ijbiomac.2017.06.122] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/28/2017] [Accepted: 06/30/2017] [Indexed: 12/26/2022]
Abstract
Cromolyn sodium is an anti-allergic drug effective for treatment in asthma and allergic rhinitis. In this project, interaction of chromolyn sodium (CS) with human serum albumin (HSA) has been investigated by various techniques such as UV-vis, fluorescence, circular dichorism (CD), fourier transform infrared (FT-IR) spectroscopy, isothermal titration calorimetric (ITC) and molecular docking. The fluorescence quenching results revealed that there was static quenching mechanism in the interactions of CS with HSA. The binding constant (Kb), enthalpy change (ΔH°), entropy change (ΔS°) and Gibbs free energy change (ΔG°) were calculated. The negative values of TΔS° and ΔH° obtained from fluorescence spectroscopy and isothermal titration calorimetry, indicate that hydrogen bonding and van der Waal's forces played major role in the binding process and the reaction is exothermic in nature. The binding constant (Kb) was found to be in the order of 104M-1 which depicts a good binding affinity of CS towards HSA. The conformational changes in the HSA due to interaction of CS were investigated from CD and FT-IR spectroscopy. The binding site of CS in HSA was sub-domain IIA as evident from site probing experiment and molecular docking studies.
Collapse
Affiliation(s)
- Shama Yasmeen
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Riyazuddeen
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India.
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| |
Collapse
|
19
|
Biophysical insight into the binding of triprolidine hydrochloride to human serum albumin: Calorimetric, spectroscopy and molecular docking approaches. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.02.099] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
20
|
Byadagi K, Meti M, Nandibewoor S, Chimatadar S. Investigation of binding behaviour of procainamide hydrochloride with human serum albumin using synchronous, 3D fluorescence and circular dichroism. J Pharm Anal 2017; 7:103-109. [PMID: 29404024 PMCID: PMC5686859 DOI: 10.1016/j.jpha.2016.07.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 07/15/2016] [Accepted: 07/17/2016] [Indexed: 11/15/2022] Open
Abstract
Interaction of procainamide hydrochloride (PAH) with human serum albumin (HSA) is of great significance in understanding the pharmacokinetic and pharmacodynamic mechanisms of the drug. Multi-spectroscopic techniques were used to investigate the binding mode of PAH to HSA and results revealed the presence of static type of quenching mechanism. The number of binding sites, binding constants and thermodynamic parameters were calculated. The results showed a spontaneous binding of PAH to HSA and hydrophobic interactions played a major role. In addition, the distance between PAH and the Trp-214 was estimated employing the Förster's theory. Site marker competitive experiments indicated that the binding of PAH to HSA primarily took place in subdomain IIA (Sudlow's site I). The influence of interference of some common metal ions on the binding of PAH to HSA was studied. Synchronous fluorescence spectra (SFS), 3D fluorescence spectra and circular dichroism (CD) results indicated the conformational changes in the structure of HSA.
Collapse
|
21
|
Li L, Wang H, Wang H, Li L, Wang P, Wang X, Liu Q. Interaction and oxidative damage of DVDMS to BSA: a study on the mechanism of photodynamic therapy-induced cell death. Sci Rep 2017; 7:43324. [PMID: 28252029 PMCID: PMC5333107 DOI: 10.1038/srep43324] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 01/25/2017] [Indexed: 12/22/2022] Open
Abstract
Photodynamic therapy (PDT) is a promising method for neoplastic and nonneoplastic diseases. In this study, we utilized sinoporphyrin sodium (DVDMS) as a sensitizer combined with light to investigate its cytotoxic effect on different cell lines. For this purpose, we chose bovine serum albumin (BSA) as a model to explore the mechanism of PDT-induced cell death at a molecular level. Our findings indicated that the combined treatment significantly suppressed cell survival. Fluorescence spectroscopy revealed a strong interaction between DVDMS and BSA molecules in aqueous solution, affecting DVDMS’ targeting distribution and metabolism. Spectroscopic analysis and carbonyl content detection indicated that DVDMS-PDT significantly enhanced the damage of BSA at a higher extent than Photofrin II-PDT under similar experimental conditions. Our observations were consistent with the cytotoxicity results. Excessive reactive oxygen species (ROS) were induced by the synergy effect of the sensitizer and light, which played an important role in damaging BSA and tumor cells. These results suggested that the interaction and oxidative damage of protein molecules by DVDMS were the main reasons to cell death and constitute a valuable reference for future DVDMS-PDT investigations.
Collapse
Affiliation(s)
- Li Li
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Huiyu Wang
- Department of Ultrasound, Beijing Shijitan Hospital Affiliated to the Capital Medical University, 100038, Beijing, China
| | - Haiping Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Lijun Li
- Department of Surgical Oncology, Beijing Shijitan Hospital Affiliated to the Capital Medical University, 100038, Beijing, China
| | - Pan Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Xiaobing Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Quanhong Liu
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| |
Collapse
|
22
|
Yang Y, Liu Y, Zhang J, Yang H. Study on interaction between salicylaldehyde l-serine schiff base and human serum albumin by fluorescence spectroscopy. BIO WEB OF CONFERENCES 2017. [DOI: 10.1051/bioconf/20170801021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
23
|
Si F, Wang W, Song X, Zhao X, Hao L. Fluorescence spectral studies on interaction of SEGS with BSA. BIO WEB OF CONFERENCES 2017. [DOI: 10.1051/bioconf/20170801017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
|
24
|
Tong J, Hu T, Qin A, Sun JZ, Tang BZ. Deciphering the binding behaviours of BSA using ionic AIE-active fluorescent probes. Faraday Discuss 2017; 196:285-303. [DOI: 10.1039/c6fd00165c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The binding behaviours of a transport protein, bovine serum albumin (BSA), in its native, unfolding and refolding states have been probed by monitoring the emission changes of two exogenous AIE-active fluorescent probes, M2 and M3, which are designed to be anionic and cationic, respectively. Due to their AIE properties, both M2 and M3 display emission enhancement when bound to the hydrophobic cavity of BSA. The binding site of M2 and M3 is found to be subdomain IIA. Then, the BSA + M2 and BSA + M3 systems are utilized to fluorescently signal the conformation changes of BSA caused by various external stimuli, including thermally or chemically induced denaturation. The data confirmed the multi-step unfolding process and the existence of a molten-globule intermediate state. The unfolding process consists of the rearrangement of subdomain IIA, the exposure of a negatively charged binding site in domain I that prefers interacting with cationic species, and the transformation of the molten-globule intermediate into the final random coil. The anionic and cationic modifications of the probes enable us to observe that electrostatic interactions play a role in the folding and unfolding of BSA.
Collapse
Affiliation(s)
- Jiaqi Tong
- MoE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Ting Hu
- MoE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Anjun Qin
- Guangdong Innovative Research Team
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Jing Zhi Sun
- MoE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Ben Zhong Tang
- MoE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| |
Collapse
|
25
|
Lin T, Liu X, Lou Z, Hou Y, Teng F. Intermolecular-charge-transfer-induced fluorescence quenching in protic solvent. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.06.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
26
|
Duan L, Yuan J, Yang X, Cheng X, Li J. Interaction study of collagen and sericin in blending solution. Int J Biol Macromol 2016; 93:468-475. [PMID: 27601133 DOI: 10.1016/j.ijbiomac.2016.09.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 06/29/2016] [Accepted: 09/01/2016] [Indexed: 11/28/2022]
Abstract
The interactions of collagen and sericin were studied by fluorescence spectra, ultraviolet spectra, FTIR spectra and dynamic light scattering. The fluorescence quenching in emission spectra and red-shift (283-330nm) in synchronous fluorescence spectra suggested the Tyr of collagen and sericin overlapped with a distance of 3Å, generating excimer. The overlapped Tyr of collagen and sericin decreased the hydrophobicity of collagen, which resulted in the red-shifts (233-240nm) in ultraviolet spectra. Moreover, the red-shifts of amide bands of collagen in FTIR spectra indicated the hydrogen bonds of collagen were weaken and it could also be explained by the overlapped Tyr. The results of 2D-FTIR spectra demonstrated the backbone of collagen molecule was varied and the most susceptible structure of collagen was the triple helix with the presence of sericin. Based on dynamic light scattering, we conjectured large pure collagen aggregates were replaced by hybrid aggregates of collagen and sericin particles after the addition of sericin. With ascending sericin ratio, the diameters of the hybrid aggregates increased and attained maximum with 60% ratio of sericin, which were on account of the increasing excimer number. The results of DSC demonstrated the presence of sericin enhanced the thermal stability of collagen.
Collapse
Affiliation(s)
- Lian Duan
- College of Textiles and Garments, Southwest University, Chongqing 400715, PR China
| | - Jingjie Yuan
- Chongqing Special Equipment Inspection and Research Institute, Chongqing 401121, PR China
| | - Xiao Yang
- College of Textiles and Garments, Southwest University, Chongqing 400715, PR China
| | - Xinjian Cheng
- College of Textiles and Garments, Southwest University, Chongqing 400715, PR China
| | - Jiao Li
- College of Textiles and Garments, Southwest University, Chongqing 400715, PR China; The Affiliated Stomatology Hospital, Chongqing Medical University, Chongqing 401147, PR China.
| |
Collapse
|
27
|
Maurya JK, Mir MUH, Maurya N, Dohare N, Ali A, Patel R. A spectroscopic and molecular dynamic approach on the interaction between ionic liquid type gemini surfactant and human serum albumin. J Biomol Struct Dyn 2016; 34:2130-45. [DOI: 10.1080/07391102.2015.1109552] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jitendra Kumar Maurya
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Muzaffar Ul Hassan Mir
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Neha Maurya
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Neeraj Dohare
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Anwar Ali
- Department of Chemistry, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India
| |
Collapse
|
28
|
Fluorescence study on the aggregation of collagen molecules in acid solution influenced by hydroxypropyl methylcellulose. Carbohydr Polym 2016; 136:224-31. [DOI: 10.1016/j.carbpol.2015.09.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 08/21/2015] [Accepted: 09/09/2015] [Indexed: 11/17/2022]
|
29
|
Ayaz Ahmed KB, Ahalya P, Sengan M, Kamlekar R, Veerappan A. Synthesis and characterization of zinc sulfide quantum dots and their interaction with snake gourd (Trichosanthes anguina) seed lectin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:739-45. [PMID: 26172461 DOI: 10.1016/j.saa.2015.07.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 06/05/2015] [Accepted: 07/07/2015] [Indexed: 05/20/2023]
Abstract
Owing to the use of quantum dots in biological labeling, and the specific interaction of lectins with tumor cells, studies on lectin-QDs interaction are of potential interest. Herein, we report a facile method to prepare zinc sulfide quantum dots (ZnS QDs) using pectin as a capping agent and studied their interaction with snake gourd seed lectin (SGSL) by fluorescence spectroscopy. The QDs were characterized by X-ray diffraction, high-resolution transmission electron microscopy, UV-Vis absorption and fluorescence spectroscopy. The thermodynamic forces governing the interaction between ZnS-QDs and SGSL have been delineated from the temperature dependent association constant. These results suggest that the binding between ZnS QDs and SGSL is governed by enthalpic forces with negative entropic contribution. The red shift of synchronous fluorescence spectra showed that the microenvironment around the tryptophan residues of SGSL was perturbed by ZnS-QDs. The obtained results suggest that the development of optical bioimaging agents by using the conjugated lectin-QDs would be possible to diagnose cancerous tissues.
Collapse
Affiliation(s)
- Khan Behlol Ayaz Ahmed
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India
| | - Pichaikkannu Ahalya
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India
| | - Megarajan Sengan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India
| | - Ravikanth Kamlekar
- Environmental and Analytical Chemistry Division, School of Advance Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Anbazhagan Veerappan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thanjavur, Tamil Nadu, India.
| |
Collapse
|
30
|
Yu X, Jiang B, Xun C, Yao Q. Interaction between fasudil hydrochloride and bovine serum albumin: spectroscopic study. LUMINESCENCE 2015; 31:986-91. [PMID: 26554343 DOI: 10.1002/bio.3062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 10/16/2015] [Accepted: 10/18/2015] [Indexed: 11/11/2022]
Abstract
The interaction between fasudil hydrochloride (FSD) and bovine serum albumin (BSA) was investigated using fluorescence and ultraviolet spectroscopy under imitated physiological conditions. The Stern-Volmer quenching model has been successfully applied and the results revealed that FSD could quench the intrinsic fluorescence of BSA effectively via static quenching. The binding constants and binding sites for the BSA-FSD system were evaluated. The corresponding thermodynamic parameters obtained at different temperatures indicated that hydrophobic force played a major role in the interaction of FSD and BSA. The distance between the donor (BSA) and the acceptor (FSD) was obtained according to fluorescence resonance energy transfer (FRET). Synchronous fluorescence spectroscopy and FT-IR spectra showed that the conformation of BSA was changed in the presence of FSD. Copyright © 2015 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Organic Chemistry and Functional 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, People's Republic of China
| | - Bingfei Jiang
- Key Laboratory of Theoretical Organic Chemistry and Functional 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
| | - Caifang Xun
- Key Laboratory of Theoretical Organic Chemistry and Functional 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
| | - Qing Yao
- Key Laboratory of Theoretical Organic Chemistry and Functional 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
|
31
|
Karthikeyan S, Bharanidharan G, Kesherwani M, Mani KA, Srinivasan N, Velmurugan D, Aruna P, Ganesan S. Insights into the binding of thiosemicarbazone derivatives with human serum albumin: spectroscopy and molecular modelling studies. J Biomol Struct Dyn 2015; 34:1264-81. [DOI: 10.1080/07391102.2015.1075905] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
32
|
Sun H, Liu Y, Li M, Han S, Yang X, Liu R. Toxic effects of chrysoidine on human serum albumin: isothermal titration calorimetry and spectroscopic investigations. LUMINESCENCE 2015; 31:335-340. [DOI: 10.1002/bio.2964] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 06/01/2015] [Accepted: 06/02/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Haoyu Sun
- School of Environmental Science and Engineering; Shandong University, China-America CRC for Environment & Health; Shandong Province 27# Shanda South Road Jinan 250100 Peoples Republic of China
| | - Yingxue Liu
- School of Environmental Science and Engineering; Shandong University, China-America CRC for Environment & Health; Shandong Province 27# Shanda South Road Jinan 250100 Peoples Republic of China
| | - Meng Li
- School of Environmental Science and Engineering; Shandong University, China-America CRC for Environment & Health; Shandong Province 27# Shanda South Road Jinan 250100 Peoples Republic of China
| | - Songlin Han
- School of Environmental Science and Engineering; Shandong University, China-America CRC for Environment & Health; Shandong Province 27# Shanda South Road Jinan 250100 Peoples Republic of China
| | - Xudan Yang
- School of Environmental Science and Engineering; Shandong University, China-America CRC for Environment & Health; Shandong Province 27# Shanda South Road Jinan 250100 Peoples Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering; Shandong University, China-America CRC for Environment & Health; Shandong Province 27# Shanda South Road Jinan 250100 Peoples Republic of China
| |
Collapse
|
33
|
Dangkoob F, Housaindokht MR, Asoodeh A, Rajabi O, Rouhbakhsh Zaeri Z, Verdian Doghaei A. Spectroscopic and molecular modeling study on the separate and simultaneous bindings of alprazolam and fluoxetine hydrochloride to human serum albumin (HSA): with the aim of the drug interactions probing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:1106-1119. [PMID: 25300043 DOI: 10.1016/j.saa.2014.08.149] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 07/20/2014] [Accepted: 08/31/2014] [Indexed: 06/04/2023]
Abstract
The objective of the present research is to study the interaction of separate and simultaneous of alprazolam (ALP) and fluoxetine hydrochloride (FLX) with human serum albumin (HSA) in phosphate buffer (pH 7.4) using different kinds of spectroscopic, cyclic voltammetry and molecular modeling techniques. The absorbance spectra of protein, drugs and protein-drug showed complex formation between the drugs and HSA. Fluorescence analysis demonstrated that ALP and FLX could quench the fluorescence spectrum of HSA and demonstrated the conformational change of HSA in the presence of both drugs. Also, fluorescence quenching mechanism of HSA-drug complexes both separately and simultaneously was suggested as static quenching. The analysis of UV absorption data and the fluorescence quenching of HSA in the binary and ternary systems showed that FLX decreased the binding affinity between ALP and HSA. On the contrary, ALP increased the binding affinity of FLX and HSA. The results of synchronous fluorescence and three-dimensional fluorescence spectra indicated that the binding of drugs to HSA would modify the microenvironment around the Trp and Tyr residues and the conformation of HSA. The distances between Trp residue and the binding sites of the drugs were estimated according to the Förster theory, and it was demonstrated that non-radiative energy transfer from HSA to the drugs occurred with a high probability. Moreover, according to CV measurements, the decrease of peak current in the cyclic voltammogram of the both drugs in the presence of HSA revealed that they interacted with albumin and binding constants were calculated for binary systems which were in agreement with the binding constants obtained from UV absorption and fluorescence spectroscopy. The prediction of the best binding sites of ALP and FLX in binary and ternary systems in molecular modeling approach was done using of Gibbs free energy.
Collapse
Affiliation(s)
- Faeze Dangkoob
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohmmad Reza Housaindokht
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran; Research and Technology Center of Biomolecules, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Ahmad Asoodeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran; Research and Technology Center of Biomolecules, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Omid Rajabi
- Medical Chemistry Department, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Asma Verdian Doghaei
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| |
Collapse
|
34
|
Zhang X, Gao R, Li D, Yin H, Zhang J, Cao H, Zheng X. Study on Interaction between 5-Bromo-4-thio-2'-deoxyuridine and human serum albumin by spectroscopy and molecular docking. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt C:1775-1781. [PMID: 25467669 DOI: 10.1016/j.saa.2014.10.081] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 10/18/2014] [Accepted: 10/23/2014] [Indexed: 06/04/2023]
Abstract
The interaction between 5-Bromo-4-thio-2'-deoxyuridine (4-SBrdU) and human serum albumin (HSA) was investigated by the methods of UV-vis absorbance, fluorescence and circular dichroism (CD) spectroscopy and molecular docking under simulative physiological conditions. The results showed that the quenching mechanism of HAS by 4-SBrdU was dynamic fluorescence quenching, hydrophobic interaction was the main intermolecular force based on thermodynamic data, the fluorescence experimental results were in agreement with results obtained by the molecular docking study.
Collapse
Affiliation(s)
- Xiaohui Zhang
- College of Environment and Chemical Engineering, Dalian University, Dalian, Liaoning 116622, China.
| | - Ruiqi Gao
- College of Environment and Chemical Engineering, Dalian University, Dalian, Liaoning 116622, China
| | - Depeng Li
- College of Environment and Chemical Engineering, Dalian University, Dalian, Liaoning 116622, China
| | - Hongyan Yin
- College of Environment and Chemical Engineering, Dalian University, Dalian, Liaoning 116622, China
| | - Juling Zhang
- MOE Key laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong 510631, China
| | - Hongyu Cao
- College of Bioengineering, Dalian University, Dalian, Liaoning 116622, China
| | - Xuefang Zheng
- College of Bioengineering, Dalian University, Dalian, Liaoning 116622, China
| |
Collapse
|
35
|
Tyagi N, Viji M, Karunakaran SC, Varughese S, Ganesan S, Priya S, Saneesh Babu PS, Nair AS, Ramaiah D. Enhancement in intramolecular interactions and in vitro biological activity of a tripodal tetradentate system upon complexation. Dalton Trans 2015; 44:15591-601. [DOI: 10.1039/c5dt00450k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Naphthalimide appended metal complexes uniquely exhibited intramolecular interactions, affinity for DNA/proteins and apoptosis mediated anticancer activity.
Collapse
Affiliation(s)
- Nidhi Tyagi
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Mambattakkara Viji
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Suneesh C. Karunakaran
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Sunil Varughese
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Shilpa Ganesan
- Agroprocessing and Natural Products Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | - Sulochana Priya
- Agroprocessing and Natural Products Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| | | | - Asha S. Nair
- Rajiv Gandhi Centre for Biotechnology
- Thiruvananthapuram 695014
- India
| | - Danaboyina Ramaiah
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram 695019
- India
| |
Collapse
|
36
|
Rakotoarivelo NV, Perio P, Najahi E, Nepveu F. Interaction between Antimalarial 2-Aryl-3H-indol-3-one Derivatives and Human Serum Albumin. J Phys Chem B 2014; 118:13477-85. [DOI: 10.1021/jp507569e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Nambinina V. Rakotoarivelo
- UPS,
PHARMA-DEV, UMR 152, Université de Toulouse, 118 Route de
Narbonne, F-31062 Toulouse cedex 9, France
- IRD,
UMR 152, Université de Toulouse, F-31062 Toulouse
cedex 9, France
| | - Pierre Perio
- UPS,
PHARMA-DEV, UMR 152, Université de Toulouse, 118 Route de
Narbonne, F-31062 Toulouse cedex 9, France
- IRD,
UMR 152, Université de Toulouse, F-31062 Toulouse
cedex 9, France
| | - Ennaji Najahi
- UPS,
PHARMA-DEV, UMR 152, Université de Toulouse, 118 Route de
Narbonne, F-31062 Toulouse cedex 9, France
- IRD,
UMR 152, Université de Toulouse, F-31062 Toulouse
cedex 9, France
| | - Françoise Nepveu
- UPS,
PHARMA-DEV, UMR 152, Université de Toulouse, 118 Route de
Narbonne, F-31062 Toulouse cedex 9, France
- IRD,
UMR 152, Université de Toulouse, F-31062 Toulouse
cedex 9, France
| |
Collapse
|
37
|
Wang Q, Wu Q, Wang J, Chen D, Li Y, Gao J, Wang B. Spectroscopic investigation on sonodynamic and sonocatalytic damage of BSA molecules by Thymol Blue (TB) derivants under ultrasonic irradiation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 128:591-602. [PMID: 24691374 DOI: 10.1016/j.saa.2014.02.199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 02/26/2014] [Accepted: 02/27/2014] [Indexed: 06/03/2023]
Abstract
In this paper, the Thymol Blue derivants including Thymol Blue (thymolsulfonphthalein), Thymol Blue-DA (3,3'-Bis [N,N-bis (carboxymethyl) aminomethyl] thymolsulfonphthalein) and Thymol Blue-DA-Fe(III) (3,3'-Bis [N,N-bis (carboxymethyl) aminomethyl] thymolsulfonphthalein-Ferrous(III)) were adopted as sonosensitizers to study the sonodynamic and sonocatalytic activities under ultrasonic irradiation. At first, the interaction of Thymol Blue derivants with bovine serum albumin (BSA) was studied by fluorescence spectroscopy. On that basis, the sonodynamic and sonocatalytic damages of Thymol Blue derivants to BSA under ultrasonic irradiation were investigated by the combination of UV-vis, circular dichroism (CD) and fluorescence spectroscopy. Meanwhile, some influenced factors (ultrasonic irradiation time, Thymol Blue derivants concentration and ionic strength) on the damaging degree of BSA molecules were also reviewed. In addition, synchronous fluorescence spectra were used to estimate the binding and damage sites of Thymol Blue derivants to BSA. Finally, the generation of ROS during sonodynamic and sonocatalytic processes was confirmed by the method of Oxidation-Extraction Spectrometry (OEP). Perhaps, this paper may offer some important subjects for the study of Thymol Blue derivants in sonodynamic therapy (SDT) and sonocatalytic therapy (SCT) technologies for tumor treatment and the effect of the amino acid and central metal.
Collapse
Affiliation(s)
- Qi Wang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Qiong Wu
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Jun Wang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China.
| | - Dandan Chen
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Ying Li
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Jingqun Gao
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Baoxin Wang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| |
Collapse
|
38
|
Ratiometric fluorescent probe based on novel red-emission BODIPY for determination of bovine serum albumin. Chem Res Chin Univ 2014. [DOI: 10.1007/s40242-014-4029-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
39
|
Song Y, Zhong D, Luo D, Huang M, Huang Z, Tan H, Sun L, Wang L. Effect of particle size on conformation and enzymatic activity of EcoRI adsorbed on CdS nanoparticles. Colloids Surf B Biointerfaces 2014; 114:269-76. [DOI: 10.1016/j.colsurfb.2013.10.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 10/04/2013] [Accepted: 10/14/2013] [Indexed: 10/26/2022]
|
40
|
Li J, Li J, Jiao Y, Dong C. Spectroscopic analysis and molecular modeling on the interaction of jatrorrhizine with human serum albumin (HSA). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 118:48-54. [PMID: 24036307 DOI: 10.1016/j.saa.2013.07.029] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 07/16/2013] [Accepted: 07/21/2013] [Indexed: 06/02/2023]
Abstract
In this work, the interaction of jatrorrhizine with human serum albumin (HSA) was studied by means of UV-vis and fluorescence spectra. The intrinsic fluorescence of HSA was quenched by jatrorrhizine, which was rationalized in terms of the static quenching mechanism. The results show that jatrorrhizine can obviously bind to HSA molecules. According to fluorescence quenching calculations, the bimolecular quenching constant (kq), apparent quenching constant (KSV) at different temperatures were obtained. The binding constants K are 4059 L mol(-1) and 1438 L mol(-1) at 299 K and 304 K respectively, and the number of binding sites n is almost 1. The thermodynamic parameters determined by the Van't Hoff analysis of the binding constants (ΔH -12.25 kJ mol(-1) and ΔS 28.17 J mol(-1) K(-1)) clearly indicate that the electrostatic force plays a major role in the process. The efficiency of energy transfer and the distance between the donor (HSA) and the acceptor (jatrorrhizine) were calculated as 22.2% and 3.19 nm according to Föster's non-radiative energy transfer theory. In addition, synchronous fluorescence spectroscopy reveals that jatrorrhizine can influence HSA's microstructure. That is, jatrorrhizine is more vicinal to tryptophane (Trp) residue than to tyrosine (Tyr) residue and the damage site is also mainly at Trp residue. Molecular modeling result shows that jatrorrhizine-HSA complex formed not only on the basis of electrostatic forces, but also on the basis of π-π staking and hydrogen bond. The research results will offer a reference for the studies on the biological effects and action mechanism of small molecule with protein.
Collapse
Affiliation(s)
- Junfen Li
- Institute of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | | | | | | |
Collapse
|
41
|
Gucma M, Gołębiewski WM. 1,3-Dipolar Cycloaddition Reaction of Nitrile Oxides Revisited-Unusual Side Products Characterized by 2D NMR. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1792] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Gucma
- Institute of Industrial Organic Chemistry; Annopol 03-236 Warsaw Poland
| | - W. M. Gołębiewski
- Institute of Industrial Organic Chemistry; Annopol 03-236 Warsaw Poland
| |
Collapse
|
42
|
Yuan D, Shen ZL, Liu RT, Wei PH, Gao CZ. Toxic Interaction between Dibutyl Phthalate and Human Serum Albumin: Spectroscopic and Molecular Modeling Investigations. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201300206] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
43
|
Cytotoxic and spectroscopic studies on binding of a new synthesized bipyridine ethyl dithiocarbamate Pt(II) nitrate complex to the milk carrier protein of BLG. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2013. [DOI: 10.1007/s13738-013-0232-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
44
|
Soni K, Sah AK. Alanyl glycoconjugate: a selective receptor for free and protein-bound tryptophan. RSC Adv 2013. [DOI: 10.1039/c3ra40668g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
45
|
Wang X, Liu J, Sun L, Yu L, Jiao J, Wang R. Interaction of Bovine Serum Albumin with Ester-Functionalized Anionic Surface-Active Ionic Liquids in Aqueous Solution: A Detailed Physicochemical and Conformational Study. J Phys Chem B 2012; 116:12479-88. [DOI: 10.1021/jp307516a] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xiaoqing Wang
- Key Laboratory of Colloid and
Interface Chemistry, Shandong University, Ministry of Education, Jinan 250100, People's Republic of China
| | - Jie Liu
- Department of Chemistry, Liaocheng University, Liaocheng 252059, People's Republic
of China
| | - Limei Sun
- Working Station
for Postdoctoral
Scientific Research in Shengli Oil Field, Dongying, 257002, People's
Republic of China
| | - Li Yu
- Key Laboratory of Colloid and
Interface Chemistry, Shandong University, Ministry of Education, Jinan 250100, People's Republic of China
| | - Jingjing Jiao
- Key Laboratory of Colloid and
Interface Chemistry, Shandong University, Ministry of Education, Jinan 250100, People's Republic of China
| | - Rui Wang
- Key Laboratory of Colloid and
Interface Chemistry, Shandong University, Ministry of Education, Jinan 250100, People's Republic of China
| |
Collapse
|
46
|
Li Q, Zhu Q, Deng X, He W, Zhao T, Zhang B. Binding interactions of water-soluble camptothecin derivatives with bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 86:124-130. [PMID: 22051412 DOI: 10.1016/j.saa.2011.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 09/28/2011] [Accepted: 10/08/2011] [Indexed: 05/31/2023]
Abstract
In this study, the binding interactions of the water-soluble camptothecin derivatives hydroxycamptothecin (10-HCPT), topotecan (TPT), and camptothecin quaternary salt (CPT8), to bovine serum albumin (BSA) were determined using fluorescence spectra and UV-vis spectra. The results revealed that the fluorescence of BSA was strongly quenched by the binding of camptothecin derivatives to BSA. The quenching mechanism of the camptothecin derivatives was found to be static according to the Stern-Volmer equation. The binding constant and binding sites were confirmed by fluorescence quenching spectra. The thermodynamic parameters Gibbs free energy change (ΔG<0), enthalpy change (ΔH>0), and entropy change (ΔS>0) implied that the interaction process was spontaneous and endothermic, and the interaction forces between camptothecin compounds and BSA were found to be hydrophobic. According to Föster non-radioactive energy transfer, the binding distances between 10-HCPT, TPT, and CPT8, and BSA were determined to be 1.73nm, 1.63nm, and 1.61nm, respectively. The synchronous fluorescence spectra confirmed that the camptothecin compounds cannot cause conformational changes in BSA. A rapid and sensitive method for determining the binding interaction between water-soluble camptothecin derivatives and BSA was established based on these principles of fluorescence quenching.
Collapse
Affiliation(s)
- Qingyong Li
- The Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Ministry of Education, Harbin 150040, China.
| | | | | | | | | | | |
Collapse
|
47
|
The effect of anti-tubercular drug, ethionamide on the secondary structure of serum albumins: A biophysical study. J Pharm Biomed Anal 2012; 59:102-8. [DOI: 10.1016/j.jpba.2011.09.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 08/22/2011] [Accepted: 09/18/2011] [Indexed: 11/19/2022]
|
48
|
Spectral interaction between silica coated silver nanoparticles and serum albumins. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2011.12.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
49
|
Zhang MF, Fu L, Wang J, Xu ZQ, Jiang FL, Liu Y. Spectroscopic and electrochemical studies on the interaction of an inclusion complex of β-cyclodextrin/fullerene with bovine serum albumin in aqueous solution. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
50
|
Krishnamoorthy P, Sathyadevi P, Butorac RR, Cowley AH, Bhuvanesh NSP, Dharmaraj N. Copper(i) and nickel(ii) complexes with 1 : 1 vs. 1 : 2 coordination of ferrocenyl hydrazone ligands: Do the geometry and composition of complexes affect DNA binding/cleavage, protein binding, antioxidant and cytotoxic activities? Dalton Trans 2012; 41:4423-36. [DOI: 10.1039/c2dt11938b] [Citation(s) in RCA: 133] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|