1
|
Daksh S, Gond C, Kumar N, Kaur L, Ojha H, Deep S, Datta A. Binding studies of potential amyloid-β inhibiting chalcone derivative with bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123362. [PMID: 37774582 DOI: 10.1016/j.saa.2023.123362] [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: 05/28/2023] [Revised: 08/23/2023] [Accepted: 09/04/2023] [Indexed: 10/01/2023]
Abstract
Chalcones (α-phenyl-β-benzoylethylene) and their natural-source derivatives have been investigated for their remarkable biological activities, like neuroprotective, anti-inflammatory, and anti-tumor properties. A triazole chalcone ligand (E)-3-(4-(dimethylamino)phenyl)-1-(4-((1-(2-(4-((E)-3-(4(dimethylamino)phenyl)acryloyl)phenoxy)ethyl)-1H-1,2,3-triazol-4-yl)methoxy)phenyl)prop-2-en-1-one (L1) was synthesized by Cu(I)- catalysed click reaction. The mechanistic properties of L1 for therapy were evaluated by analyzing the binding interactions between L1 and bovine serum albumin (BSA) through photophysical and computational studies. The structural elucidation of ligand L1 was carried out by NMR and mass spectrometry. The Aβ inhibitory activity of L1 was studied by thioflavin T assay and transmission electron microscopy. The biomolecular interaction of L1 with bovine serum albumin was examined through multi-spectroscopic techniques in combination with in silico studies. UV-Visible absorption, fluorescence spectroscopy, circular dichroism, Förster resonance energy transfer, and three-dimensional fluorescence studies confirmed the formation of a BSA-L1 complex. The potential binding sites, mechanism of interactions, and variations in the environment of tyrosine and tryptophan amino acid residues of BSA were assessed at different temperatures. The binding constant for the Static quenching mechanism of intrinsic fluorescence of BSA was of the order of 105 M-1. The esterase enzyme activity assay in the presence of L1 revealed an increase in the protein enzyme activity. Molecular docking studies suggested L1 was predominantly bound to BSA by hydrogen bonds and Van der Waals forces.
Collapse
Affiliation(s)
- Shivani Daksh
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Brig S. K. Mazumdar Marg, Delhi 110054, India; Department of Chemistry, Indian Institute of Technology, Delhi, Hauz-Khas, New Delhi 110016, India
| | - Chandraprakash Gond
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, Uttar Pradesh, India
| | - Nikhil Kumar
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Brig S. K. Mazumdar Marg, Delhi 110054, India; Department of Chemistry, Indian Institute of Technology, Delhi, Hauz-Khas, New Delhi 110016, India
| | - Lajpreet Kaur
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Brig S. K. Mazumdar Marg, Delhi 110054, India
| | - Himanshu Ojha
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Brig S. K. Mazumdar Marg, Delhi 110054, India
| | - Shashank Deep
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz-Khas, New Delhi 110016, India.
| | - Anupama Datta
- Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization, Brig S. K. Mazumdar Marg, Delhi 110054, India.
| |
Collapse
|
2
|
Solution behavior of native and denatured beta lactoglobulin in presence of pyridinium based ionic liquids: A biophysical perspective of folding and refolding pattern of the protein. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
3
|
Babgi BA, Alzaidi NA, Alsayari JH, Emwas AHM, Jaremko M, Abdellattif MH, Aljahdali M, Hussien MA. Synthesis, HSA-Binding and Anticancer Properties of [Cu2($$\mu$$-dppm)2(N^N)2]2+. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02404-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
4
|
Sengottiyan S, Malakar K, Kathiravan A, Velusamy M, Mikolajczyk A, Puzyn T. Integrated Approach to Interaction Studies of Pyrene Derivatives with Bovine Serum Albumin: Insights from Theory and Experiment. J Phys Chem B 2022; 126:3831-3843. [PMID: 35583491 PMCID: PMC9169062 DOI: 10.1021/acs.jpcb.2c00778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
This work aimed to
investigate the interaction of bovine serum
albumin with newly synthesized potent new pyrene derivatives (PS1
and PS2), which might prove useful to have a better antibacterial
character as found for similar compounds in the previous report [Low et al. Bioconjugate Chemistry2014, 12, 2269−2284]. However, to date, binding studies with
plasma protein are still unknown. Steady-state fluorescence spectroscopy
and lifetime fluorescence studies show that the static interaction
binding mode and binding constants of PS1 and PS2 are 7.39 and 7.81
[Kb × 105 (M–1)], respectively. The experimental results suggest that hydrophobic
forces play a crucial role in interacting pyrene derivatives with
BSA protein. To verify this, molecular docking and molecular dynamics
simulations were performed to predict the nature of the interaction
and the dynamic behavior of the two compounds in the BSA complex,
PS1 and PS2, under physiological conditions of pH = 7.1. In addition,
the free energies of binding for the BSA-PS1 and BSA-PS2 complexes
were estimated at 300 K based on the molecular mechanics of the Poisson–Boltzmann
surface (MMPBSA) with the Gromacs package. PS2 was found to have a
higher binding affinity than PS1. To determine the behavior of the
orbital transitions in the ground state geometry, we found that both
compounds have similar orbital transitions from HOMO–LUMO via
π → π* and HOMO–1–LUMO+1 via n →
π*, which was included in the FMO analysis. A cytotoxicity study
was performed to determine the toxicity of the compounds. Based on
the MD study, the stability of the compounds with BSA and the dynamic
binding modes were further revealed, as well as the nature of the
binding force components involved and the important residues involved
in the binding process. From the binding energy analysis, it can be
assumed that PS2 may be more active than PS1.
Collapse
Affiliation(s)
- Selvaraj Sengottiyan
- Laboratory of Environmental Chemoinformatics, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, Gdansk, 80-308 Poland
| | - Kakoli Malakar
- Department of Chemistry, North Eastern Hill University, Shillong 793 022, Meghalaya, India
| | - Arunkumar Kathiravan
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R & D Institute of Science and Technology, Avadi, Chennai 600 062, Tamil Nadu, India
| | - Marappan Velusamy
- Department of Chemistry, North Eastern Hill University, Shillong 793 022, Meghalaya, India
| | - Alicja Mikolajczyk
- Laboratory of Environmental Chemoinformatics, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, Gdansk, 80-308 Poland.,QSAR Lab Ltd., ul. Trzy Lipy 3, Gdansk, 80-266 Poland
| | - Tomasz Puzyn
- Laboratory of Environmental Chemoinformatics, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, Gdansk, 80-308 Poland.,QSAR Lab Ltd., ul. Trzy Lipy 3, Gdansk, 80-266 Poland
| |
Collapse
|
5
|
Bayraktutan T, Gür B, Onganer Y. A new FRET-based functional chemosensor for fluorometric detection of Fe3+and its validation through in silico studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
6
|
Rahman AJ, Kaur L, Pathak M, Singh A, Verma P, Singhal R, Kumar V, Ojha H. Spectroscopic studies of binding interactions of 2-chloroethylphenyl sulphide with bovine serum albumin. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117144] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
7
|
Joksimović N, Petronijević J, Milović E, Janković N, Baskić D, Popović S, Todorović D, Matić S, Vraneš M, Tot A. Synthesis, characterization, antitumor potential, BSA and DNA binding properties, and molecular docking study of some novel 3-hydroxy-3-pyrrolin-2-ones. Med Chem 2021; 18:337-352. [PMID: 34344294 DOI: 10.2174/1573406417666210803094127] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/05/2020] [Accepted: 02/07/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND In order to make progress in discovering the new agents for cancer treatment with improved properties and considering the fact that 3-hydroxy-3-pyrrolin-2-ones belong to a class of biologically active compounds, we tested series of eleven novels 1,5-diaryl-4-(2-thienylcarbonyl)-3-hydroxy-3-pyrrolin-2-ones for their antitumor potential. METHODS All novel compounds were characterized by spectral (IR, NMR, MS) and elemental analysis. All novel 3-hydroxy-3-pyrrolin-2-ones were screened for their cytotoxic activity on two cancer cell lines, SW480 and MDA-MB 231, and non-transformed fibroblasts (MRC-5). RESULTS Compounds B8, B9, and B10 showed high cytotoxicity on SW480 cells together with good selectivity towards MRC-5 cells. It is important to empathize that the degree of selectivity of B8 and B10 was high (SI = 5.54 and 12.09, respectively). Besides, we explored the mechanisms of cytotoxicity of novel derivatives, B8, B9, and B10. The assay showed that tested derivatives induce an apoptotic type of cell death in SW480 cells, with a minor percent of necrotic cells. Additionally, to better understand the suitability of the compounds for potential use as anticancer medicaments, we studied their interactions with biomacromolecules (DNA or BSA). The results indicated that the tested compounds have a great affinity to displace EB from the EB-DNA complex through intercalation. Also, DNA and BSA molecular docking study was performed to predict the binding mode and the interaction region of the compounds. CONCLUSION Achieved results indicate that our compounds have the potential to become candidates for use as medicaments.
Collapse
Affiliation(s)
- Nenad Joksimović
- University of Kragujevac, Faculty of Science, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac. Serbia
| | - Jelena Petronijević
- University of Kragujevac, Faculty of Science, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac. Serbia
| | - Emilija Milović
- University of Kragujevac, Faculty of Science, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac. Serbia
| | - Nenad Janković
- University of Kragujevac, Institute for Information Technologies Kragujevac, Department of Sciences, Jovana Cvijića bb, 34000 Kragujevac. Serbia
| | - Dejan Baskić
- University of Kragujevac, Faculty of Medical Sciences, Centre for Molecular Medicine and Stem Cell Research, Svetozara Markovića 69, 34000 Kragujevac. Serbia
| | - Suzana Popović
- University of Kragujevac, Faculty of Medical Sciences, Centre for Molecular Medicine and Stem Cell Research, Svetozara Markovića 69, 34000 Kragujevac. Serbia
| | - Danijela Todorović
- University of Kragujevac, Faculty of Medical Sciences, Department of Genetics, Svetozara Markovića 69, 34000 Kragujevac. Serbia
| | - Sanja Matić
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac. Serbia
| | - Milan Vraneš
- University of Novi Sad, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad. Serbia
| | - Aleksandar Tot
- University of Novi Sad, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad. Serbia
| |
Collapse
|
8
|
Alsaedi S, Babgi BA, Abdellatif MH, Emwas AH, Jaremko M, Humphrey MG, Hussien MA. Effect of Net Charge on DNA-Binding, Protein-Binding and Anticancer Properties of Copper(I) Phosphine-Diimine Complexes. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02063-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
AbstractThe syntheses of [Cu(PPh3)2(L)]NO3 and [Cu(PPh3)2(L-SO3Na)]NO3 were achieved through the reaction of Cu(PPh3)2NO3 and equimolar amount of the ligands (L = 5,6-diphenyl-3-[2-pyridyl]-1,2,4-triazine; LSO3Na = 5,6-diphenyl-3-[2-pyridyl]-1,2,4-triazine-4,4′-disulfonic acid disodium salt). The complexes were characterized by NMR and IR spectroscopy and mass spectrometry. The compounds exhibit similar absorption and emission spectra, suggesting a similar electronic structure. Ct-DNA binding studies show the strong influence of the net charge as Cu-L (positively charged) is able to bind to ct-DNA while Cu-LSO3Na (negatively charged) is not. The net charge of the complexes affects the thermodynamic and kinetic binding parameters toward human serum albumin. HSA-binding of the complexes was further investigated by molecular docking, revealing different binding sites on the HSA protein as a function of the net charge. The different anticancer activities of the complexes towards ovcar-3 and hope-62 cancer cell lines are suggestive of a role for the overall charge of the complexes. Interaction with the DNA is not the major mechanism for this class of complexes. The overall net charge of the pharmacophore (anticancer agent) should be a key consideration in the design of anticancer metal complexes.
Collapse
|
9
|
Rabiul Islam M, Warsi F, Sayem Alam M, Ali M. Solvatochromic behaviour of coumarin 102 in PEGs + ionic liquid/water solutions: Role of solute-solvent or solvent-solvent interactions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116483] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
10
|
Unravelling the aggregation behaviour and micellar properties of CHAPS (3-[(3-cholamidopropyl)-dimethylamino]-1-propanesulfonate), a zwitterionic derivative of cholic acid, using Coumarin 1 photophysics. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
11
|
Synthesis, Structural Studies, and Anticancer Properties of [CuBr(PPh3)2(4,6-Dimethyl-2-Thiopyrimidine-κS]. CRYSTALS 2021. [DOI: 10.3390/cryst11060688] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
CuBr(PPh3)2(4,6-dimethylpyrimidine-2-thione) (Cu-L) was synthesized by stirring CuBr(PPh3)3 and 4,6-dimethylpyrimidine-2-thione in dichloromethane. The crystal structure of Cu-L was obtained, and indicated that the complex adopts a distorted tetrahedral structure with several intramolecular hydrogen bonds. Moreover, a centrosymmetric dimer is formed by the intermolecular hydrogen bonding of the bromine acceptor created by symmetry operation 1−x, 1−y, 1−z to the methyl group (D3 = C42) of the pyrimidine–thione ligand. HSA-binding of Cu-L and its ligand were evaluated, revealing that Cu-L binds to HSA differently than its ligand. The HSA-bindings were modeled by molecular docking, which suggested that Cu-L binds to the II A domain while L binds between the I B and II A domains. Anticancer activities toward OVCAR-3 and HeLa cell lines were tested and indicated the significance of the copper center in enhancing the cytotoxic effect; negligible toxicities for L and Cu-L were observed towards a non-cancer cell line. The current study highlights the potential of copper(I)-phosphine complexes containing thione ligands as therapeutic agents.
Collapse
|
12
|
Aslam J, Hussain Lone I, Ansari F, Aslam A, Aslam R, Akram M. Molecular binding interaction of pyridinium based gemini surfactants with bovine serum albumin: Insights from physicochemical, multispectroscopic, and computational analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 250:119350. [PMID: 33387804 DOI: 10.1016/j.saa.2020.119350] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
To study the interaction of the series of pyridinium based gemini surfactants (GS) (referred to as m-Py-m, m = 14, 16); 4,4'-(propane-1,3-diyl)bis(1-(2-(tetradecyloxy)-2-oxoethyl) dipyridinium chloride (14-Py-14), and 4,4'-(propane-1,3-diyl) bis(1-(2-(hexadecyloxy)-2-oxoethyl)dipyridinium chloride (16-Py-16) with bovine serum albumin (BSA), various physicochemical and spectroscopic tools such as tensiometry, steady-state fluorescence, synchronous fluorescence, pyrene fluorescence, UV-visible, far-UV circular dichroism (CD) were utilized at physiological pH (7.4) and 298 K in combination with computational molecular modeling analysis. The tensiometric results show significant modifications in interfacial and thermodynamic parameters for m-Py-m GS upon BSA combination, deciphering the gemini surfactant-BSA interaction. Steady-state fluorescence analysis evaluates the structural alterations of BSA with the addition of m-Py-m GS. The plots of Stern-Volmer, modified Stern-Volmer, and thermodynamic parameters were used to determine the binding type of m-Py-m GS to BSA. The synchronous fluorescence spectra state a mild effect of gemini surfactants on the emission intensity of tyrosine (Tyr) residues, on the other hand, tryptophan (Trp) residues showed a significant effect. Post addition of GS, the plot of pyrene fluorescence reveals the mild micropolarity fluctuations via the probe (pyrene) molecules encapsulated in BSA. UV-visible experiments support the complex formation between the BSA and m-Py-m GS. Far-UV CD measurements revealed the modifications in the secondary structure of protein produced by m-Py-m GS. Furthermore, we also used the computational molecular modeling for attaining deep insight into BSA and m-Py-m GS binding and the results are supported with our experimental results.
Collapse
Affiliation(s)
- Jeenat Aslam
- Department of Chemistry, College of Science, Yanbu-30799, Taibah University, Al-Madina, Saudi Arabia.
| | - Irfan Hussain Lone
- Department of Chemistry, College of Science, Yanbu-30799, Taibah University, Al-Madina, Saudi Arabia
| | - Farah Ansari
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202002, India
| | - Afroz Aslam
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202002, India
| | - Ruby Aslam
- Corrosion Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India
| | - Mohd Akram
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202002, India.
| |
Collapse
|
13
|
Alteration of Anticancer and Protein-Binding Properties of Gold(I) Alkynyl by Phenolic Schiff Bases Moieties. Pharmaceutics 2021; 13:pharmaceutics13040461. [PMID: 33805337 PMCID: PMC8066730 DOI: 10.3390/pharmaceutics13040461] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 11/17/2022] Open
Abstract
A set of five gold complexes with the general formula Au(PR3)(C≡C-C6H4-4-R′) (R = PPh3, R′ = –CHO (1), R = PCy3, R′ = –CHO (2), R = PPh3, R′ = –N=CH-C6H4-2-OH (3), R = PPh3, R′ = –N=CH-C6H4-4-OH (4), R = PCy3, R′ = –N=CH-C6H4-2-OH (5)) were synthesized and characterized by elemental analysis, 1H-NMR spectroscopy, 31P-NMR spectroscopy, and mass spectrometry. The structures of complexes 2 and 5 were determined by X-ray crystallography. The effects of the structural modifications on the protein binding affinities and anticancer activities of the five gold complexes were assessed. Fluorescence quenching experiments to assess binding to human serum albumin (HSA) revealed that the Schiff base complexes (3, 4, and 5) had binding constants that were superior to their parent aldehyde complexes and highlighted the position of the hydroxy group because complex 4 (4-hydroxy) had a binding constant 6400 times higher than complex 3 (2-hydroxy). The anticancer activities of the complexes against the OVCAR-3 (ovarian carcinoma) and HOP-62 (non-small-cell lung) cancer cell lines showed that the Schiff bases (3–5) were more cytotoxic than the aldehyde-containing complexes (1 and 2). Notably, compound 4 had cytotoxic activity comparable to that of cisplatin against OVCAR-3, demonstrating the significance of the para position for the hydroxy group. Molecular docking studies against the enzyme thioredoxin reductase (TrxR) and human serum albumin were conducted, with docking scores in good agreement with the experimental data. The current study highlights how small structural modifications can alter physiochemical and anticancer properties. Moreover, this simple design strategy using the aldehyde group can generate extensive opportunities to explore new gold(I)-based anticancer drugs via condensation, cyclization, or nucleophilic addition reactions of the aldehyde.
Collapse
|
14
|
Rahman AJ, Sharma D, Kumar D, Pathak M, Singh A, Kumar V, Chawla R, Ojha H. Spectroscopic and molecular modelling study of binding mechanism of bovine serum albumin with phosmet. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 244:118803. [PMID: 32829155 DOI: 10.1016/j.saa.2020.118803] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/20/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
Phosmet exerts its neurotoxicity by inhibiting acetylcholinesterase that catalyzes the degradation of acetylcholine (a neurotransmitter). Serum proteins are known to influence the biodistribution of various endogenous and exogenous compounds. In the present study, the binding interactions of phosmet with bovine serum albumin (BSA) was investigated to determine the free concentration of phosmet for its neurotoxicity. The binding mechanism was studied using fluorescence, UV-Vis absorption spectroscopy, circular dichroism (CD), and molecular docking techniques. UV-Vis absorption data showed an increase in absorbance of BSA upon binding with phosmet with a slight red-shift in the peak around 280 nm. Intrinsic fluorescence of BSA was quenched in the presence of phosmet. The quenching was observed to be inversely correlated to the temperature that indicated the formation of ground state non-fluorescent complex (static quenching). Binding constant values and n values for the binding of phosmet with BSA at three different temperatures confirmed non-covalent binding interactions with a single set of equivalent binding sites. Thermodynamic parameters ∆G (-137.40 ± 3.58 kJ mol-1); ΔH (-16.33 ± 5.28 kJ mol-1) and ΔS(-469 ± 12.45 kJ mol-1) confirmed that the binding was spontaneous and non-covalent interactions like electrostatic, hydrogen bonding and van der Waals forces played an important role in the binding. The CD data indicated the conformational change in BSA upon binding with phosmet which resulted in a change in the melting temperature. Molecular docking presented the binding model for BSA-phosmet complex and displayed that non-covalent interactions played a significant role in the binding mechanism.
Collapse
Affiliation(s)
- Afreen Jahan Rahman
- CBRN Protection and Decontamination Research Group, Division of CBRN Defence, Institute of Nuclear Medicine and Allied Sciences, DRDO, Timarpur, Delhi 110054, India
| | - Deepti Sharma
- CBRN Protection and Decontamination Research Group, Division of CBRN Defence, Institute of Nuclear Medicine and Allied Sciences, DRDO, Timarpur, Delhi 110054, India
| | - Deepanshu Kumar
- CBRN Protection and Decontamination Research Group, Division of CBRN Defence, Institute of Nuclear Medicine and Allied Sciences, DRDO, Timarpur, Delhi 110054, India
| | - Mallika Pathak
- Department of Chemistry, Miranda House, University of Delhi, Delhi 110007, India
| | - Anju Singh
- Department of Chemistry, Ramjas College, University of Delhi, Delhi 110007, India; Nucleic Acids Research Lab, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Vinod Kumar
- CBRN Protection and Decontamination Research Group, Division of CBRN Defence, Institute of Nuclear Medicine and Allied Sciences, DRDO, Timarpur, Delhi 110054, India
| | - Raman Chawla
- CBRN Protection and Decontamination Research Group, Division of CBRN Defence, Institute of Nuclear Medicine and Allied Sciences, DRDO, Timarpur, Delhi 110054, India
| | - Himanshu Ojha
- CBRN Protection and Decontamination Research Group, Division of CBRN Defence, Institute of Nuclear Medicine and Allied Sciences, DRDO, Timarpur, Delhi 110054, India.
| |
Collapse
|
15
|
Murugesan A, Singh T, Rajamanikandan R, Vinu M, Ilanchelian M, Lin CH, Gengan RM. Synthesis, spectroscopic, DFT, HSA binding and docking studies of new 1,5-bis(4-chlorophenyl)-3-(2-(4-methylpiperazin-1-yl)quinolin-3-yl)pentane-1,5-dione. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129260] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
16
|
Hashemi S, Karami K, Saberi Dehkordi Z, Momtazi-Borojeni AA, Esmaeili SA. Novel P,C-orthopalladated complexes containing histidine and phenylalanine amino acids: synthesis, DNA and BSA interactions, in vitro antitumoral activity and molecular docking approach. J Biomol Struct Dyn 2020; 40:5000-5015. [PMID: 33356950 DOI: 10.1080/07391102.2020.1865202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Novel [Pd(o-CH2C6H4P(o-tolyl)2)(histidine)] (1) and [Pd(o-CH2C6H4P(o tolyl)2)(phenylalanine)] (2) P,C-orthopalladated complexes have been prepared and characterized by elemental analysis, IR and NMR spectroscopy. To study the stability of the compounds in biological media, the complexes were incubated in Tris buffer during 10 days. The absorbance of the compounds remained constant, which confirmed the stability of the complexes in biological media. UV-Vis absorption spectrophotometry, fluorescence spectroscopy and viscosity studies were used to investigate the binding of the complexes with native calf thymus DNA (CT-DNA). These methods along with competitive binding of methylene blue (MB) DNA show that the complexes interact with DNA via groove mode. The UV-Vis absorption spectrophotometry of BSA with complexes has shown an α-helix perturbation induced by a particular interaction between the metal complexes and BSA. In addition, the fluorescence quenching mechanism of BSA with the complexes is a static process, according to the fluorescence spectrometry of bovine serum albumin (BSA). The experimental results of site competitive replacement with specific site markers are clear indications that the complexes bind to site I of BSA. Furthermore, both complexes showed significant selective cytotoxic activity against melanoma B16F0 and colon carcinoma C26 cancer cells as well as normal fibroblast NIH cell line. Ultimately, the binding of Pd(II) complexes to DNA and BSA was verified by molecular docking experiment.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Sara Hashemi
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Kazem Karami
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Zeinab Saberi Dehkordi
- Department of Chemistry, Faculty of Science, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Amir Abbas Momtazi-Borojeni
- Nanotechnology Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Biotechnology, Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Alireza Esmaeili
- Department of Immunology and Allergy, Student Research Committee, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
17
|
Mukhopadhyay A, Sharma M, Sharma KP. Dispersion and Interaction of Charged Fluorescent Dyes in Protein‐Polymer Surfactant‐based Non‐Aqueous Liquid. Chemphyschem 2020; 21:2127-2135. [DOI: 10.1002/cphc.202000443] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/18/2020] [Indexed: 11/12/2022]
Affiliation(s)
- Anasua Mukhopadhyay
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Monika Sharma
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Kamendra P. Sharma
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| |
Collapse
|
18
|
Yu Y, Gong QT, Lu WF, Liu YH, Yang ZJ, Wang N, Yu XQ. Aggregation-Induced Emission Probes for Specific Turn-On Quantification of Bovine Serum Albumin. ACS APPLIED BIO MATERIALS 2020; 3:5193-5201. [PMID: 35021694 DOI: 10.1021/acsabm.0c00589] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A series of aggregation-induced emission (AIE) fluorescence probes, coined 4H-pyrimido[2,1-b]benzothiazole derivatives, has been synthesized by Biginelli reactions. Utilizing spectroscopic techniques, their photophysical properties have been comprehensively investigated in working environment both in vitro and in vivo. Density functional theory (DFT) calculations were performed to better understand the mechanism of these probes. The interactions between 4H-pyrimido[2,1-b]benzothiazoles with different substituents and bovine serum albumin (BSA) were analyzed using UV-vis and fluorescence spectroscopy, synchronous fluorescence, and docking analysis. Studies found that 4H-pyrimido[2,1-b]benzothiazole could bind to bovine serum albumin (BSA) through a hydrogen bond and hydrophobic interactions, resulting in enhancement of fluorescence emission of probes 1a-6f and fluorescence quenching of BSA. Combined with cell imaging experiments, these provide information on potential effects of benzothiazoles on disease treatment.
Collapse
Affiliation(s)
- Yuan Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Qing-Tian Gong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Wei-Fan Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Zeng-Jie Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Na Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| |
Collapse
|
19
|
Fik-Jaskółka MA, Mkrtchyan AF, Saghyan AS, Palumbo R, Belter A, Hayriyan LA, Simonyan H, Roviello V, Roviello GN. Biological macromolecule binding and anticancer activity of synthetic alkyne-containing L-phenylalanine derivatives. Amino Acids 2020; 52:755-769. [PMID: 32430874 DOI: 10.1007/s00726-020-02849-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 04/29/2020] [Indexed: 01/17/2023]
Abstract
Herein, we described the synthesis of two L-phenylalanines α-derivatized with a terminal alkyne moiety whose structures differed by phenyl ring halogen substitution (two o-Cl in 1 vs. one p-Br in 2) and investigated their effect on biological macromolecules and living cells. We explored their interaction with quadruplex DNA (G4 DNA), using tel26 and c-myc as models, and bovine serum albumin (BSA). By CD spectroscopy, we found that 1 caused minor tel26 secondary structure changes, leading also to a slight thermal stabilization of this hybrid antiparallel/parallel G4 structure, while the c-myc parallel topology remained essentially unchanged upon 1 binding. Other CD evidences showed the ability of 1 to bind BSA, while molecular docking studies suggested that the same molecule could be housed into the hydrophobic cavity between sub-domains IIA, IIB, and IIIA of the protein. Furthermore, preliminary aggregation studies, based on concentration-dependent spectroscopic experiments, suggested the ability of 1 to aggregate forming noncovalent polymeric systems in aqueous solution. Differently from 1, the bromine-modified compound was able to bind Cu(II) ion, likely with the formation of a CuL2 complex, as found by UV spectroscopy. Finally, cell tests excluded any cytotoxic effect of both compounds toward normal cells, but showed slight antiproliferative effects of 2 on PC3 cancerous cells at 24 h, and of 1 on both T98G and MDA-MB-231 cancer cells at 48 h.
Collapse
Affiliation(s)
- Marta A Fik-Jaskółka
- Department of Bioinorganic Chemistry, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego Str. 8, 61-614, Poznan, Poland.,Centre for Advanced Technology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego Str. 10, 61-614, Poznan, Poland.,Istituto di Biostrutture e Bioimmagini, IBB-CNR, Via Mezzocannone 16, 80134, Naples, Italy
| | - Anna F Mkrtchyan
- Scientific and Production Center, Armbiotechnology" of NAS RA, 14 Gyurjyan Str., 0056, Yerevan, Armenia.,Institute of Pharmacy, Yerevan State University, 1 Alex Manoogian Str., 0025, Yerevan, Armenia
| | - Ashot S Saghyan
- Scientific and Production Center, Armbiotechnology" of NAS RA, 14 Gyurjyan Str., 0056, Yerevan, Armenia.,Institute of Pharmacy, Yerevan State University, 1 Alex Manoogian Str., 0025, Yerevan, Armenia
| | - Rosanna Palumbo
- Istituto di Biostrutture e Bioimmagini, IBB-CNR, Via Mezzocannone 16, 80134, Naples, Italy
| | - Agnieszka Belter
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Liana A Hayriyan
- Scientific and Production Center, Armbiotechnology" of NAS RA, 14 Gyurjyan Str., 0056, Yerevan, Armenia.,Institute of Pharmacy, Yerevan State University, 1 Alex Manoogian Str., 0025, Yerevan, Armenia
| | - Hayarpi Simonyan
- Institute of Pharmacy, Yerevan State University, 1 Alex Manoogian Str., 0025, Yerevan, Armenia
| | - Valentina Roviello
- Department of Chemical, Materials and Industrial Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125, Naples, Italy
| | - Giovanni N Roviello
- Istituto di Biostrutture e Bioimmagini, IBB-CNR, Via Mezzocannone 16, 80134, Naples, Italy.
| |
Collapse
|
20
|
Sett R, Paul BK, Guchhait N. Suppression of ESIPT Phenomenon of Flavonoids on Binding Interaction with Double Stranded RNA. ChemistrySelect 2020. [DOI: 10.1002/slct.202000402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Riya Sett
- Department of ChemistryUniversity of Calcutta 92 A. P. C. Road Kolkata 700009 India
| | - Bijan K. Paul
- Department of Chemistry Mahadevananda Mahavidyalaya Barrackpore Kolkata 700120 India
| | - Nikhil Guchhait
- Department of ChemistryUniversity of Calcutta 92 A. P. C. Road Kolkata 700009 India
| |
Collapse
|
21
|
Fik-Jaskółka MA, Mkrtchyan AF, Saghyan AS, Palumbo R, Belter A, Hayriyan LA, Simonyan H, Roviello V, Roviello GN. Spectroscopic and SEM evidences for G4-DNA binding by a synthetic alkyne-containing amino acid with anticancer activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117884. [PMID: 31927477 DOI: 10.1016/j.saa.2019.117884] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/26/2019] [Accepted: 12/01/2019] [Indexed: 06/10/2023]
Abstract
Herein, we present a spectroscopic (CD and UV) and SEM study of a phenylalanine derivative carrying a terminal alkyne moiety and indicated by us CF3IIIPhe, with particular attention to its interaction with Cu(II) cation and some biological macromolecules, as well as a preliminary evaluation of its effect on cancerous cells. CD spectroscopy evidenced the ability of CF3IIIPhe to interact with tel26 and c-myc, two quadruplex DNA (G4 DNA) models explored in this study. Other CD and UV studies revealed the ability of the unnatural amino acid to form aggregates in aqueous solution, to bind Cu(II) cation, and to interact with bovine serum albumin (BSA). Cellular studies demonstrated CF3IIIPhe antiproliferative activity on PC3 cells. Its ability to bind telomeric DNA was verified with tel26 by CD investigation and SEM analysis, that revealed a noteworthy change in DNA morphology (mainly based on nanosphere structures) by CF3IIIPhe, confirming its G4-DNA binding ability already evidenced by spectroscopy.
Collapse
Affiliation(s)
- Marta A Fik-Jaskółka
- Department of Bioinorganic Chemistry, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego Str. 8, 61-614 Poznan, Poland; Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego Str. 10, 61-614 Poznań, Poland; Istituto di Biostrutture e Bioimmagini IBB - CNR, Via Mezzocannone 16, I-80134 Naples, Italy
| | - Anna F Mkrtchyan
- Scientific and Production Center "Armbiotechnology" of NAS RA, 14 Gyurjyan Str., 0056 Yerevan, Armenia; Institute of Pharmacy, Yerevan State University, 1 Alex Manoogian Str., 0025 Yerevan, Armenia
| | - Ashot S Saghyan
- Scientific and Production Center "Armbiotechnology" of NAS RA, 14 Gyurjyan Str., 0056 Yerevan, Armenia; Institute of Pharmacy, Yerevan State University, 1 Alex Manoogian Str., 0025 Yerevan, Armenia
| | - Rosanna Palumbo
- Istituto di Biostrutture e Bioimmagini IBB - CNR, Via Mezzocannone 16, I-80134 Naples, Italy
| | - Agnieszka Belter
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland
| | - Liana A Hayriyan
- Scientific and Production Center "Armbiotechnology" of NAS RA, 14 Gyurjyan Str., 0056 Yerevan, Armenia; Institute of Pharmacy, Yerevan State University, 1 Alex Manoogian Str., 0025 Yerevan, Armenia
| | - Hayarpi Simonyan
- Institute of Pharmacy, Yerevan State University, 1 Alex Manoogian Str., 0025 Yerevan, Armenia
| | - Valentina Roviello
- Department of Chemical, Materials and Industrial Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
| | - Giovanni N Roviello
- Istituto di Biostrutture e Bioimmagini IBB - CNR, Via Mezzocannone 16, I-80134 Naples, Italy.
| |
Collapse
|
22
|
Sphingomyelin-induced structural modification of native human hemoglobin and its chemically and thermally disrupted secondary structure: A photophysical exploration. Colloids Surf B Biointerfaces 2020; 190:110909. [PMID: 32146276 DOI: 10.1016/j.colsurfb.2020.110909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/14/2020] [Accepted: 02/25/2020] [Indexed: 11/23/2022]
Abstract
Sphingomyelin-induced structural modification of Human Hemoglobin (Hb) has been investigated in its native and unfolded conformers that are partially denatured in presence of ∼ 4 M urea, completely denatured in ∼ 8 M urea and thermally disrupted (at ∼ 65 °C) state. The absorption studies unveil ground state complexation between Hb and SM. From steady-state fluorescence and quenching studies alteration of the micro-environments around Trp residues of Hb in above mentioned different cases has been determined. Moreover, lesser exposure of Trp residues to SM in thermally disrupted Hb can be accounted for the exceptionally interesting outcomes in other experiments. The alterations in the time-resolved decay profiles of native Hb, partially and totally chemically denatured as well as thermally disrupted Hb with gradual addition of SM also affirm the amendment of the proteinous micro-environment surrounding Trp residues in a view of FRET between Trp residues and heme group. Wavelength-sensitive emission spectral studies reveal that the protein shows red edge effect in its different conformations in presence and absence of SM. Interestingly, the wavelength-responsive time-resolved study at a constant excitation wavelength demonstrates that with addition of lipid the increment of the average fluorescence lifetime signifies a considerable modulation of solvation dynamics of the fluorescent Trp residues in their excited state being greatest in case of thermally disrupted Hb. Nevertheless, the loss of α-helicity of Hb at its various conformers with addition of SM has been portrayed thoroughly by means of far-UV CD spectral studies in a view of disruption of secondary structure of the protein.
Collapse
|
23
|
Effect of adiphenine hydrochloride on the structure of bovine serum albumin: Spectroscopic and docking study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127168] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
24
|
Mishra SS, Mohanty S, Mishra J, Subuddhi U. Photophysical Properties of Coumarin 1 in Bile Salt Aggregates: An Insight into the Role of Bile Salt Structure on the Aggregation Behavior. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:16555-16567. [PMID: 31742410 DOI: 10.1021/acs.langmuir.9b02664] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The photophysical behavior of Coumarin 1 (Cou1), a well-known 7-aminocoumarin derivative, is very sensitive to the microenvironment in which it resides. In the present study, the effect of six bile salt variants on the photophysical behavior of Cou1 has been investigated. Dihydroxy (deoxycholates) as well as trihydroxy (cholates) bile salts with conjugated and unconjugated side chains have been chosen to get insight into the role of bile salt structure on the microenvironment of Cou1. Cou1 photophysics was found to be extremely sensitive to the aggregation process of the bile salt variants. The reduced polarity of the micellar environment stabilizes the planar intramolecular charge transferred state of Cou1, resulting in significant modulation in its photophysics in the bile salt media. The changes in the fluorescence parameters such as fluorescence intensity, emission energy, fluorescence quantum yield, anisotropy, and lifetime of Cou1 reveal that there is a distinct difference in the aggregation behavior of deoxycholates from that of cholates. The deoxycholates form micelles more or less critically similar to those of conventional surfactants, whereas the cholates self-assemble rather noncritically over a wide concentration range, thus signifying the vital role of the extra hydroxyl group in the aggregation pattern of trihydroxy bile salts. The conjugated bile salts are found to provide a relatively more compact, rigid, and hydrophobic microenvironment to Cou1 as compared to their unconjugated counterparts. Considering the significant modulation in the photophysical properties of Cou1, it has been employed as a molecular reporter for monitoring the aggregation process of bile salt variants and important information could be obtained about the effect of bile salt structure on the aggregation pattern and also about the micellar properties.
Collapse
Affiliation(s)
- Smruti Snigdha Mishra
- Department of Chemistry , National Institute of Technology , Rourkela , 769008 Odisha , India
| | - Subhrajit Mohanty
- Department of Chemistry , National Institute of Technology , Rourkela , 769008 Odisha , India
| | - Jhili Mishra
- Department of Chemistry , Indian Institute of Technology , Madras , Chennai 600036 , India
| | - Usharani Subuddhi
- Department of Chemistry , National Institute of Technology , Rourkela , 769008 Odisha , India
| |
Collapse
|
25
|
Damera DP, Kaja S, Janardhanam LSL, Alim S, Venuganti VVK, Nag A. Synthesis, Detailed Characterization, and Dual Drug Delivery Application of BSA Loaded Aquasomes. ACS APPLIED BIO MATERIALS 2019; 2:4471-4484. [DOI: 10.1021/acsabm.9b00635] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | - Sk Alim
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | | | | |
Collapse
|
26
|
Sen S, Paul BK, Guchhait N. Interaction of a sphingolipid with human serum albumin in the native, thermally denatured and chemically denatured states: Emission wavelength-dependent photophysical revelation. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111456] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
27
|
Siddiq AM, Murugan D, Srivastava R, Alam MS. Influence of pH on interaction of silver nanoparticles - protein: Analyses by spectroscopic and thermodynamic ideology. Colloids Surf B Biointerfaces 2019; 184:110524. [PMID: 31586899 DOI: 10.1016/j.colsurfb.2019.110524] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 09/16/2019] [Accepted: 09/22/2019] [Indexed: 12/25/2022]
Abstract
To investigate the interaction between bovine serum albumin (BSA) and silver nanoparticles (AgNPs) at five different pHs (below (3.0 and 4.0), above (7.4 and 9.2) and at the isoelectric point (4.7) of BSA) by spectroscopic (viz., UV-vis, fluorescence, circular dichroism (CD)), microscopic (viz., atomic force microscopy (AFM), transmission electron microscopy (TEM), field emission scanning electron microscope (FESEM)) and thermodynamic (viz., isothermal titration calorimetry (ITC)) methods. The fluorescence quenching spectra provided binding constants via Stern-Volmer plot, quenching constant (Ksv) and rate constant (Kq) were calculated. From the CD spectra, it is clear that the α-helix decreases by increasing the AgNP's concentration. However, at isoelectric point (pH = 4.7), BSA shows more helicity in the presence of AgNPs, which indicates that the structures of BSA become more ordered and stable, and aggregation occurs at strong acidic (3.0), and basic medium (9.2) Fluorescence spectra also indicate the aggregation of the protein at strong acidic (pH = 3.0) and basic medium (pH = 9.2). Furthermore, the morphological and topographical evolute ion upon the interaction was examined using TEM, FESEM, and AFM. The studies conclude the effect of the pH in the medium and behavior of AgNPs with BSA by using different spectroscopic and microscopic techniques.
Collapse
Affiliation(s)
- A Mohammed Siddiq
- Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Polymer Science & Technology Laboratory, Chennai 600020, India
| | - Devaraj Murugan
- Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Chemical Engineering, Chennai 600020, India
| | - Rachana Srivastava
- Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Polymer Science & Technology Laboratory, Chennai 600020, India
| | - Md Sayem Alam
- Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Polymer Science & Technology Laboratory, Chennai 600020, India; Chemical Science, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201 002, India.
| |
Collapse
|
28
|
Simin khataee, Dehghan G, Rashtbari S, Yekta R, Sheibani N. Synergistic inhibition of catalase activity by food colorants sunset yellow and curcumin: An experimental and MLSD simulation approach. Chem Biol Interact 2019; 311:108746. [DOI: 10.1016/j.cbi.2019.108746] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/06/2019] [Accepted: 07/10/2019] [Indexed: 11/26/2022]
|
29
|
Berberine derivatives as heteroatom induced hydrophobic sensor: An analytical approach for the selective and sensitive fluorometric detection and discrimination of serum albumins. Anal Chim Acta 2019; 1065:124-133. [DOI: 10.1016/j.aca.2019.03.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/07/2019] [Accepted: 03/12/2019] [Indexed: 12/19/2022]
|
30
|
Bhattacharyya A, Makhal SC, Guchhait N. Comparative Photophysical Study of Differently Substituted Cinnamaldehyde-Based Chalcones: From Intramolecular Charge Transfer to Fluorogenic Solvent Selectivity. J Phys Chem A 2019; 123:6411-6419. [PMID: 31287690 DOI: 10.1021/acs.jpca.9b03437] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We synthesized three cinnamaldehyde-based chalcone derivatives, (2E,4E)-1-(2-hydroxyphenyl)-5-phenylpenta-2,4-dien-1-one (HPD), (2E,4E)-5-(4-(dimethylamino)phenyl)-1-phenylpenta-2,4-dien-1-one (DPPD), and (2E,4E)-5-(4-(dimethylamino)phenyl)-1-(2-hydroxyphenyl)penta-2,4-dien-1-one (DPHPD). The molecule HPD was totally nonfluorescent. Exclusion of a phenolic -OH moiety from HPD along with the introduction of a dimethylamino moiety in DPPD resulted in excellent excited-state charge-transfer properties in the solution phase. Interestingly, introduction of phenolic -OH and dimethylamino moieties in DPHPD resulted in solvent selectivity in the excited state. DPHDP behaved as a strong fluorophore only in carbonyl- or thiocarbonyl-containing solvents, such as dimethylsulfoxide (DMSO), dimethylformamide (DMF) and dimethylacetamide (DMAC) and showed a prominent red color under UV light. However, no emission was observed in similar carbonylated solvents, such as acetone or formamide, or in viscous medium, such as glycerol. The difference in solvent response was probed by various spectroscopic techniques and analyzed using the crystal structure of the three chalcones along with theoretical calculations. The practical utility of DPHPD was explored by detecting the percentage of water in DMSO solvent.
Collapse
Affiliation(s)
| | - Subhash Chandra Makhal
- Department of Chemistry , University of Calcutta , 92, A.P.C. Road , Kolkata 700009 , India
| | - Nikhil Guchhait
- Department of Chemistry , University of Calcutta , 92, A.P.C. Road , Kolkata 700009 , India
| |
Collapse
|
31
|
Zhu L, Pelaz B, Chakraborty I, Parak WJ. Investigating Possible Enzymatic Degradation on Polymer Shells around Inorganic Nanoparticles. Int J Mol Sci 2019; 20:E935. [PMID: 30795518 PMCID: PMC6412445 DOI: 10.3390/ijms20040935] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/01/2019] [Accepted: 02/03/2019] [Indexed: 12/05/2022] Open
Abstract
Inorganic iron oxide nanoparticle cores as model systems for inorganic nanoparticles were coated with shells of amphiphilic polymers, to which organic fluorophores were linked with different conjugation chemistries, including 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) chemistry and two types of "click chemistry". The nanoparticle-dye conjugates were exposed to different enzymes/enzyme mixtures in order to investigate potential enzymatic degradation of the fluorophore-modified polymer shell. The release of the dyes and polymer fragments upon enzymatic digestion was quantified by using fluorescence spectroscopy. The data indicate that enzymatic cleavage of the fluorophore-modified organic surface coating around the inorganic nanoparticles in fact depends on the used conjugation chemistry, together with the types of enzymes to which the nanoparticle-dye conjugates are exposed.
Collapse
Affiliation(s)
- Lin Zhu
- Faculty of Physics, Universität Hamburg, 22761 Hamburg, Germany.
| | - Beatriz Pelaz
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | | | - Wolfgang J Parak
- Faculty of Physics, Universität Hamburg, 22761 Hamburg, Germany.
- CIC Biomagune, 20014 San Sebastian, Spain.
| |
Collapse
|
32
|
Bhattacharyya A, Makhal SC, Guchhait N. Photophysical Properties of an Azine-Linked Pyrene-Cinnamaldehyde Hybrid: Evidence of Solvent-Dependent Charge-Transfer-Coupled Excimer Emission. ACS OMEGA 2019; 4:2178-2187. [PMID: 31459464 PMCID: PMC6648816 DOI: 10.1021/acsomega.8b02717] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/13/2018] [Indexed: 06/10/2023]
Abstract
We report the photophysical properties of a synthetic asymmetric azine-based compound (17Z,18E)-4'-((E)-3-phenylallylidene)-1'-(dimethylamino)-1-((pyren-8-yl)methylene)hydrazine (PYNC). The molecule PYNC shows an appreciable red shift in the emission maximum in a wide range of solvents. In water, PYNC shows the characteristic feature of excimer formation exclusively. However, in all other solvents, the excimer band is present alongside the charge transfer emission band. The assignment of charge transfer and excimer bands has been established by various steady-state emission spectral data. PYNC, owing to this novel excimer-coupled charge transfer phenomenon, can be a potential probe for studying various supramolecular assemblies of biological interest.
Collapse
|
33
|
Karami K, Jamshidian N, Zakariazadeh M. Synthesis, characterization and molecular docking of newC,N-palladacycles containing pyridinium-derived ligands: DNA and BSA interaction studies and evaluation as anti-tumor agents. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4728] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Kazem Karami
- Department of Chemistry; Isfahan University of Technology; Isfahan 84156/83111 Iran
| | - Nasrin Jamshidian
- Department of Chemistry; Isfahan University of Technology; Isfahan 84156/83111 Iran
| | - Mostafa Zakariazadeh
- Research Institute for Fundamental Sciences (RIFS); University of Tabriz; Tabriz Iran
| |
Collapse
|
34
|
Arumugam V, Rajamanikandan R, Ilanchelian M, Moodley KG, Redhi GG. Elucidation of interactions of BSA with [EPMpyr]+[Cl]− using spectroscopic techniques with reference to theoretical thermodynamic and molecular docking studies. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.09.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
35
|
Hosseini-Kharat M, Rahimi R, Zargarian D, Mehri Lighvan Z, Momtazi-Borojeni AA, Sharifi T, Abdollahi E, Tavakol H, Mohammadi T. Antiproliferative activity of morpholine-based compounds on MCF-7 breast cancer, colon carcinoma C26, and normal fibroblast NIH-3T3 cell lines and study of their binding affinity to calf thymus-DNA and bovine serum albumin. J Biomol Struct Dyn 2018; 37:3788-3802. [DOI: 10.1080/07391102.2018.1527724] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Rahmatollah Rahimi
- Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
| | - Davit Zargarian
- Département de Chimie, Université de Montréal, Montreal, QC, Canada
| | | | - Amir Abbas Momtazi-Borojeni
- Nanotechnology Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Tayebeh Sharifi
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Elham Abdollahi
- Department of Medical Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Tavakol
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Tecush Mohammadi
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| |
Collapse
|
36
|
Bhuiya S, Chowdhury S, Haque L, Das S. Spectroscopic, photophysical and theoretical insight into the chelation properties of fisetin with copper (II) in aqueous buffered solutions for calf thymus DNA binding. Int J Biol Macromol 2018; 120:1156-1169. [DOI: 10.1016/j.ijbiomac.2018.08.162] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 08/21/2018] [Accepted: 08/27/2018] [Indexed: 01/29/2023]
|
37
|
Influence of BSA on micelle formation of SDBS and CPC: An experimental–theoretical approach of its binding properties. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
38
|
|
39
|
Halder S, Kumari S, Kumar S, Aswal VK, Saha SK. Fluorescence Resonance Energy Transfer, Small-Angle Neutron Scattering, and Dynamic Light Scattering Study on Interactions of Gemini Surfactants Having Different Spacer Groups with Protein at Various Regions of Binding Isotherms. ACS OMEGA 2018; 3:11192-11204. [PMID: 31459229 PMCID: PMC6645604 DOI: 10.1021/acsomega.8b01471] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/03/2018] [Indexed: 06/07/2023]
Abstract
The binding interactions of three gemini surfactants having different spacer groups (12-4-12, 12-8-12, and 12-4(OH)-12) with a high concentration (150 μM) of bovine serum albumin (BSA) at various regions of binding isotherms have been studied by means of steady-state fluorescence and fluorescence anisotropy, time-correlated single-photon counting fluorescence of trans-2-[4-(dimethylamino)styryl]benzothiazole, small-angle neutron scattering (SANS), and dynamic light scattering (DLS) measurements. The fluorescence resonance energy transfer phenomenon between the twisted intramolecular charge transfer fluorescent molecule, trans-2-[4-(dimethylamino)styryl]benzothiazole as an acceptor, and tryptophan 213 (Trp-213) of BSA as a donor has been successfully used to probe the binding interactions of gemini surfactants with protein at all regions of binding isotherms. The increasing order of energy transfer efficiency at a higher concentration range of surfactants is 12-8-12 > 12-4-12 > 12-4(OH)-12. Stronger binding of micelles of gemini surfactant molecules having a comparatively more hydrophobic spacer group with the hydrophobic segments of the protein results in closer approach of trans-2-[4-(dimethylamino)styryl]benzothiazole molecules solubilized in micelles to Trp-213. The average excited-state lifetimes become shorter with a trend of increase in contribution from the fast component and decrease in contribution from the slow component to the decay with increasing concentration of a surfactant. The nonradiative rate constant of trans-2-[4-(dimethylamino)styryl]benzothiazole increases with increasing concentration of a surfactant because the average microenvironment around it in protein-surfactant aggregates is more polar as compared to that in native protein. SANS and DLS measurements were carried out for the study of the structural deformations in the protein, on enhancement of the concentration of the gemini surfactants. The necklace and bead model has been used for the analysis of SANS data for the protein-surfactant complexes. At a higher concentration range, 12-8-12 and 12-4-12 have a slightly smaller fractal dimension and a larger correlation length as compared to 12-4(OH)-12. DLS data show that the increasing order of hydrodynamic diameter for the complexes of protein with three gemini surfactants in their high concentration range is 12-4(OH)-12 < 12-4-12 < 12-8-12.
Collapse
Affiliation(s)
- Sayantan Halder
- Department
of Chemistry, Birla Institute of Technology
& Science (BITS), Pilani, Pilani Campus, Pilani, 333 031 Rajasthan, India
| | - Sunita Kumari
- Department
of Chemistry, Birla Institute of Technology
& Science (BITS), Pilani, Pilani Campus, Pilani, 333 031 Rajasthan, India
| | - Sugam Kumar
- Solid
State Physics Division, Bhabha Atomic Research
Centre (BARC), Trombay, Mumbai, 400085 Maharashtra, India
| | - Vinod K. Aswal
- Solid
State Physics Division, Bhabha Atomic Research
Centre (BARC), Trombay, Mumbai, 400085 Maharashtra, India
| | - Subit K. Saha
- Department
of Chemistry, Birla Institute of Technology
& Science (BITS), Pilani, Pilani Campus, Pilani, 333 031 Rajasthan, India
| |
Collapse
|
40
|
Ghobadi R, Divsalar A, Harifi-Mood AR, Saboury AA, Eslami-Moghadam M. How a promising anti-cancer derivative of palladium consisting phen-imidazole ligand affects bovine liver catalase functionality. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.05.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
41
|
Sasmal M, Bhowmick R, Musha Islam AS, Bhuiya S, Das S, Ali M. Domain-Specific Association of a Phenanthrene-Pyrene-Based Synthetic Fluorescent Probe with Bovine Serum Albumin: Spectroscopic and Molecular Docking Analysis. ACS OMEGA 2018; 3:6293-6304. [PMID: 31458811 PMCID: PMC6644396 DOI: 10.1021/acsomega.8b00186] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 06/01/2018] [Indexed: 05/20/2023]
Abstract
In this report, the interaction between a phenanthrene-pyrene-based fluorescent probe (PPI) and bovine serum albumin (BSA), a transport protein, has been explored by steady-state emission spectroscopy, fluorescence anisotropy, far-ultraviolet circular dichroism (CD), time-resolved spectral measurements, and molecular docking simulation study. The blue shift along with emission enhancement indicates the interaction between PPI and BSA. The binding of the probe causes quenching of BSA fluorescence through both static and dynamic quenching mechanisms, revealing a 1:1 interaction, as delineated from Benesi-Hildebrand plot, with a binding constant of ∼105 M-1, which is in excellent agreement with the binding constant extracted from fluorescence anisotropy measurements. The thermodynamic parameters, ΔH°, ΔS°, and ΔG°, as determined from van't Hoff relationship indicate the predominance of van der Waals/extensive hydrogen-bonding interactions for the binding phenomenon. The molecular docking and site-selective binding studies reveal the predominant binding of PPI in subdomain IIA of BSA. From the fluorescence resonance energy transfer study, the average distance between tryptophan 213 of the BSA donor and the PPI acceptor is found to be 3.04 nm. CD study demonstrates the reduction of α-helical content of BSA protein on binding with PPI, clearly indicating the change of conformation of BSA.
Collapse
|
42
|
Patel R, Maurya N, Parray MUD, Farooq N, Siddique A, Verma KL, Dohare N. Esterase activity and conformational changes of bovine serum albumin toward interaction with mephedrone: Spectroscopic and computational studies. J Mol Recognit 2018; 31:e2734. [DOI: 10.1002/jmr.2734] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/26/2018] [Accepted: 05/08/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Rajan Patel
- 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
| | - Mehraj ud din Parray
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (A Central University); New Delhi India
| | - Nida Farooq
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (A Central University); New Delhi India
| | - Abrar Siddique
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (A Central University); New Delhi India
| | - Kanak Lata Verma
- Department of Chemistry, Regional Forensic Science Laboratory; Government of NCT of Delhi; New Delhi India
| | - Neeraj Dohare
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (A Central University); New Delhi India
| |
Collapse
|
43
|
Petronijević J, Janković N, Stanojković TP, Joksimović N, Grozdanić NĐ, Vraneš M, Tot A, Bugarčić Z. Biological evaluation of selected 3,4-dihydro-2(1H
)-quinoxalinones and 3,4-dihydro-1,4-benzoxazin-2-ones: Molecular docking study. Arch Pharm (Weinheim) 2018; 351:e1700308. [DOI: 10.1002/ardp.201700308] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 03/15/2018] [Accepted: 03/19/2018] [Indexed: 12/28/2022]
Affiliation(s)
| | - Nenad Janković
- Department of Chemistry; University of Kragujevac; Kragujevac Serbia
| | | | - Nenad Joksimović
- Department of Chemistry; University of Kragujevac; Kragujevac Serbia
| | | | - Milan Vraneš
- Department of Chemistry, Biochemistry and Environmental Protection; University of Novi Sad; Novi Sad Serbia
| | - Aleksandar Tot
- Department of Chemistry, Biochemistry and Environmental Protection; University of Novi Sad; Novi Sad Serbia
| | - Zorica Bugarčić
- Department of Chemistry; University of Kragujevac; Kragujevac Serbia
| |
Collapse
|
44
|
Sett R, Sen S, Paul BK, Guchhait N. How Does Nanoconfinement within a Reverse Micelle Influence the Interaction of Phenazinium-Based Photosensitizers with DNA? ACS OMEGA 2018; 3:1374-1385. [PMID: 31458466 PMCID: PMC6641382 DOI: 10.1021/acsomega.7b01820] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 01/17/2018] [Indexed: 06/10/2023]
Abstract
The major focus of the present work lies in exploring the influence of nanoconfinement within aerosol-OT (AOT) reverse micelles on the binding interaction of two phenazinium-based photosensitizers, namely, phenosafranin (PSF) and safranin-O (SO), with the DNA duplex. Circular dichroism and dynamic light-scattering studies reveal the condensation of DNA within the reverse micellar interior (transformation of the B-form of native DNA to ψ-form). Our results unveil a remarkable effect of the degree of hydration of the reverse micellar core on the stability of the stacking interaction (intercalation) of the drugs (PSF and SO) into DNA; increasing size of the water nanopool (that is, w 0) accompanies decreasing curvature of the DNA duplex structure with the consequent effect of increasing stabilization of the drug:DNA intercalation. The marked differences in the dynamical aspects of the interaction scenario following encapsulation within the reverse micellar core and the subsequent dependence on the size of the water nanopool are also meticulously explored. The differential degrees of steric interactions offered by the drug molecules (presence of methyl substitutions on the planar phenazinium ring in SO) are also found to affect the extent of intercalation of the drugs to DNA. In this context, it is imperative to state that the water pool of the reverse micellar core is often argued to approach bulk-like properties of water with increasing micellar size (typically w 0 ≥ 10), so that deviation from the bulk water properties is likely to be minimized in large reverse micelles (w 0 ≥ 10). On the contrary, our results (particularly quantitative elucidation of micropolarity and dynamical aspects of the interaction) explicitly demonstrate that the bulk-like behavior of the nanoconfined water is not truly achieved even in large reverse micelles.
Collapse
Affiliation(s)
- Riya Sett
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Swagata Sen
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Bijan K. Paul
- Department
of Chemistry, Mahadevananda Mahavidyalaya, Barrackpore, Kolkata 700120, India
| | - Nikhil Guchhait
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| |
Collapse
|
45
|
Synthesis and characterization of two new trans palladium (II) complexes containing benzylamine ligand: DNA/BSA interactions, molecular docking and in vitro cytotoxic activity. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.02.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
46
|
Aneja B, Kumari M, Azam A, Kumar A, Abid M, Patel R. Effect of triazole-tryptophan hybrid on the conformation stability of bovine serum albumin. LUMINESCENCE 2018; 33:464-474. [DOI: 10.1002/bio.3435] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 09/27/2017] [Accepted: 11/06/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Babita Aneja
- Medicinal Chemistry Laboratory, Department of Biosciences; Jamia Millia Islamia; New Delhi India
| | - Meena Kumari
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (A Central University); Jamia Nagar New Delhi India
| | - Amir Azam
- Department of Chemistr; Jamia Millia Islamia; New Delhi India
| | - Amit Kumar
- Centre for Nano and Material Sciences; Jain University; Jain Global Campus, Jakkasandra Post Bangalore India
| | - Mohammad Abid
- Medicinal Chemistry Laboratory, Department of Biosciences; Jamia Millia Islamia; New Delhi India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (A Central University); Jamia Nagar New Delhi India
| |
Collapse
|
47
|
Vodyanova OS, Kochergin BA, Usoltsev SD, Marfin YS, Rumyantsev EV, Aleksakhina EL, Tomilova IK. BODIPY dyes in bio environment: Spectral characteristics and possibilities for practical application. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.09.049] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
48
|
Murugesan A, Gengan RM, Rajamanikandan R, Ilanchelian M. One-pot synthesis via 1, 3-dipolar cycloaddition reaction to piperazinyl-quinolinyl dispiro heterocyclic derivatives and spectrofluorometric and molecular docking studies on their binding with human serum albumin. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.08.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
49
|
Bhuiya S, Haque L, Goswami R, Das S. Multispectroscopic and Theoretical Exploration of the Comparative Binding Aspects of Bioflavonoid Fisetin with Triple- and Double-Helical Forms of RNA. J Phys Chem B 2017; 121:11037-11052. [DOI: 10.1021/acs.jpcb.7b07972] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sutanwi Bhuiya
- Department of Chemistry, Jadavpur University, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Lucy Haque
- Department of Chemistry, Jadavpur University, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Rapti Goswami
- Department of Chemistry, Jadavpur University, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Suman Das
- Department of Chemistry, Jadavpur University, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India
| |
Collapse
|
50
|
Murugesan A, Gengan RM, Rajamanikandan R, Ilanchelian M, Lin CH. One-pot synthesis of Claisen–Schmidt reaction through (E)-chalcone derivatives: Spectral studies in human serum albumin protein binding and molecular docking investigation. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1355466] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Arul Murugesan
- Department of Chemistry, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | - Robert Moonsamy Gengan
- Department of Chemistry, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | | | - Malaichamy Ilanchelian
- Department of Chemistry, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | - Chia-Her Lin
- Department of Chemistry, Chung Yuan Christian University, Chungli, Taiwan
| |
Collapse
|