1
|
Halder D, Purkayastha P. Impact of cationic surfactant-induced DNA compaction on the characteristics of a minor groove bound flavonol. SOFT MATTER 2022; 18:938-942. [PMID: 35045144 DOI: 10.1039/d1sm01792f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
3-Hydroxyflavone (3-HF), which binds to the minor groove of DNA, is a strong antioxidant and hence a potent therapeutic and diagnostic agent. A special photo-property, called excited state intramolecular proton transfer (ESIPT), makes the 3-HF derivatives sensitive to the cellular hydrophobic microenvironment. The present study depicts the various changes in the ESIPT of 3-HF due to cationic surfactant-induced compaction of DNA.
Collapse
Affiliation(s)
- Dipanjan Halder
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur 741246, WB, India.
| | - Pradipta Purkayastha
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur 741246, WB, India.
| |
Collapse
|
2
|
Kumar S, Nair MS. Deciphering the interaction of flavones with calf thymus DNA and octamer DNA sequence (CCAATTGG) 2. RSC Adv 2021; 11:29354-29371. [PMID: 35479565 PMCID: PMC9040621 DOI: 10.1039/d1ra04101k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/22/2021] [Indexed: 01/18/2023] Open
Abstract
We investigated the interaction of three flavone compounds, baicalein, chrysin and flavone with calf thymus DNA and octamer DNA sequence (CCAATTGG)2. The binding mechanisms of the flavone compounds with both DNA were unveiled using biophysical, thermodynamic and molecular modelling techniques. Absorption and fluorescence titrations confirm the formation of the DNA complexes along with the extent of interaction. Absorption data proposed an intercalation mode of binding. Fluorescence displacement assays using ethidium bromide and Hoechst 33258 data supports a partial intercalation. Potassium iodide quenching substantiated this finding. Circular dichroism data revealed major structural changes on binding with flavones which can arise from intercalation partially or in a tilted arrangement. Analysis of the effect of ionic strength on complex formation eliminated the role of electrostatic interaction in the binding. Differential scanning calorimetric data showed substantial changes in the melting temperatures of complexes and predicted the DNA–baicalein complex as the most stable one. Molecular modelling showcased that the complexes are located near the AT rich region. Docking analysis with different sequences showed that the flavone compounds intercalated with base pairs only with d(CGATCG)2. Binding of flavones induce conformational changes in double stranded DNA.![]()
Collapse
Affiliation(s)
- Shailendra Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee Roorkee Uttarakhand-247667 India +91-1332-273560 +91-1332-285790
| | - Maya S Nair
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee Roorkee Uttarakhand-247667 India +91-1332-273560 +91-1332-285790
| |
Collapse
|
3
|
Mondal S, Karmakar A, Mallick T, Begum NA. Exploring the efficacy of naturally occurring biflavone based antioxidants towards the inhibition of the SARS-CoV-2 spike glycoprotein mediated membrane fusion. Virology 2021; 556:133-139. [PMID: 33571798 PMCID: PMC7860945 DOI: 10.1016/j.virol.2021.01.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 12/22/2022]
Abstract
Molecular docking studies were done to show the inhibitory effect of two naturally occurring biflavone based anti-HIV agents, hinokiflavone and robustaflavone against the SARS-CoV-2 spike (S) protein mediated attack on the human ACE2 receptors via membrane fusion mechanism. Nefamostat, a FDA approved drug, well-known as a serine protease inhibitor for MERS-CoV infection, was used as the reference compound. Both the biflavones, showed potential as inhibitors for SARS-CoV-2 S protein-mediated viral entry. The binding affinities of these naturally occurring biflavones for RBD-S2 subunit protein of SARS-CoV-2 were explored for the first time. Such binding affinities play a critical role in the virus-cell membrane fusion process. These biflavones are able to interact more strongly with the residues of heptad repeat 1 and 2 (HR1 and HR2) regions of S2 protein of SARS-CoV-2 compared to nefamostat, and thus, these biflavones can effectively block the formation of six-helix bundle core fusion structure (6-HB) leading to the inhibition of virus-target cell-membrane fusion.
Collapse
Affiliation(s)
- Samiran Mondal
- Department of Chemistry, Rammohan College, 102/1-Raja Rammohan Sarani, Kolkata, 700009, West Bengal, India.
| | - Abhijit Karmakar
- Department of Chemistry, Visva-Bharati (Central University), Santiniketan, 731 235, India
| | - Tamanna Mallick
- Department of Chemistry, Visva-Bharati (Central University), Santiniketan, 731 235, India
| | - Naznin Ara Begum
- Department of Chemistry, Visva-Bharati (Central University), Santiniketan, 731 235, India
| |
Collapse
|
4
|
Das S, Mukherjee S, Chakrabarty S, Chattopadhyay N. Hydroxyl Group-Directed Solvation of Excited-State Intramolecular Proton Transfer Probes in Water: A Demonstration from the Fluorescence Anisotropy of Hydroxyflavones. J Phys Chem A 2021; 125:57-64. [PMID: 33166155 DOI: 10.1021/acs.jpca.0c08023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Formation of a probe-solvent network resulting in unusually high fluorescence anisotropy (FA) of an excited-state intramolecular proton transfer (ESIPT) probe, 3-hydroxyflavone (3HF), in water prompted us to explore the solvation patterns on its 7-hydroxy (7HF) and 6-hydroxy (6HF) positional analogues. In the present study, it was observed that 7HF exhibits a lower FA than 3HF does in water, implying that the volume of the 7HF-water cluster is less than that of the 3HF-water cluster. Experimental and computational results led us to propose that 7HF forms its water cluster at the molecular periphery in contrast to the projected-out structure in case of the 3HF-water cluster. Density functional theory (DFT)-based quantum chemical calculations provide an approach for the differential solvation patterns of 3HF and 7HF. 6HF, a non-ESIPT probe, exhibits very low FA in water compared with both 3HF and 7HF. This study demonstrates that proper positioning of the hydroxyl group and its participation in the extended π-conjugation within the molecule dictate the formation of the solvated cluster endorsing directed solvation.
Collapse
Affiliation(s)
- Sinjan Das
- Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Shounak Mukherjee
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata 700 106, India
| | - Suman Chakrabarty
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata 700 106, India
| | | |
Collapse
|
5
|
Structure functionality relationship of flavonoids (myricetin, morin, taxifolin and 3′,4′-dihydroxyflavone). A computational study via the cupric ion probe. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
6
|
Song X, Wang Y, Gao L. Mechanism of antioxidant properties of quercetin and quercetin-DNA complex. J Mol Model 2020; 26:133. [PMID: 32399900 DOI: 10.1007/s00894-020-04356-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 03/18/2020] [Indexed: 12/20/2022]
Abstract
Quercetin is the most abundant flavonoid with potent antioxidant activities. In the current research, the antioxidant properties of quercetin and quercetin-DNA complex were investigated theoretically and experimentally. Free radical scavenging experiments with thiobarbituric acid-reactive substances (TBARS) and 1,1-diphenyl-2-trinitrophenylhydrazine (DPPH) indicate that quercetin can protect DNA from free radical damage, and the antioxidant activity of the quercetin-DNA complex is stronger than quercetin. Deoxyriboseadenine-quercetin-dimethylphosphinic acid (DA-Q-P) model was extracted from molecular docking. The contributions of hydroxyl groups in quercetin and DA-Q-P model molecules to the antioxidant activity were investigated by computation of bond dissociation enthalpy (BDE) parameter and Fukui function, at B3LYP/6-311++G(2d,2p) level of theory. The results outlined that the hydroxyl groups from the B ring (3'-OH and 4'-OH) have a lower BDE compared with the ones from the A and C rings (3-OH, 5-OH, and 7-OH) and hence define antioxidant activity. The computational result based on Fukui function shows that the B ring is an electrophilic region. The interaction of antioxidant with DNA discovered at the molecular level could provide the structural basis of the antioxidant property of active ingredients in the flavonoids. It is of great significance to study the interaction mechanism between the small drug molecules with DNA at the molecular level.
Collapse
Affiliation(s)
- Xiaoli Song
- College of Chemistry and Chemical Engineering, Yulin University, Yulin, 719000, Shaanxi, China.
| | - Yali Wang
- College of Chemistry and Chemical Engineering, Yulin University, Yulin, 719000, Shaanxi, China.
| | - Liguo Gao
- College of Chemistry and Chemical Engineering, Yulin University, Yulin, 719000, Shaanxi, China.
| |
Collapse
|
7
|
Abbas G, Asim S, Bhatti HN, Mansha A, Zahid M, Ahmad M, Haider R. Spectroscopic studies of interactions of 2-(2-Oxo-2-Phenylethyl)-1, 2-benzisothiazol-3(2H)-one-1, 1-dioxide with human DNA. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.06.079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
8
|
Exploration of synthetic antioxidant flavonoid analogs as acetylcholinesterase inhibitors: an approach towards finding their quantitative structure–activity relationship. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02330-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
9
|
Mitra A, Saikh F, Das J, Ghosh S, Ghosh R. Studies on the interaction of a synthetic nitro-flavone derivative with DNA: A multi-spectroscopic and molecular docking approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 203:357-369. [PMID: 29885634 DOI: 10.1016/j.saa.2018.05.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/09/2018] [Accepted: 05/20/2018] [Indexed: 06/08/2023]
Abstract
Interaction of a ligand with DNA is often the basis of drug action of many molecules. Flavones are important in this regard as their structural features confer them the ability to bind to DNA. 2-(4-Nitrophenyl)-4H-chromen-4-one (4NCO) is an important biologically active synthetic flavone derivative. We are therefore interested in studying its interaction with DNA. Absorption spectroscopy studies included standard and reverse titration, effect of ionic strength on titration, determination of stoichiometry of binding and thermal denaturation. Spectrofluorimetry techniques included fluorimetric titration, quenching studies and fluorescence displacement assay. Assessment of relative viscosity and estimation of thermodynamic parameters from CD spectral studies were also undertaken. Furthermore, molecular docking analyses were also done with different short DNA sequences. The fluorescent flavone 4NCO reversibly interacted with DNA through partial intercalation as well as minor-groove binding. The binding constant and the number of binding sites were of the order 104 M-1 and 1 respectively. The binding stoichiometry with DNA was found to be 1:1. The nature of the interaction of 4NCO with DNA was hydrophobic in nature and the process of binding was spontaneous, endothermic and entropy-driven. The flavone also showed a preference for binding to GC rich sequences. The study presents a profile for structural and thermodynamic parameters, for the binding of 4NCO with DNA. DNA is an important target for ligands that are effective against cell proliferative disorders. In this regard, the molecule 4NCO is important since it can exert its biological activity through its DNA binding ability and can be a potential drug candidate.
Collapse
Affiliation(s)
- A Mitra
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani 741235, West Bengal, India
| | - F Saikh
- Department of Chemistry, Organic Section, Jadavpur University, Kolkata 700032, West Bengal, India
| | - J Das
- Department of Chemistry, Organic Section, Jadavpur University, Kolkata 700032, West Bengal, India
| | - S Ghosh
- Department of Chemistry, Organic Section, Jadavpur University, Kolkata 700032, West Bengal, India
| | - R Ghosh
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani 741235, West Bengal, India.
| |
Collapse
|
10
|
Karmakar A, Mallick T, Alam MN, Das S, Batuta S, Chandra SK, Mandal D, Begum NA. Understanding of the interactions of ctDNA with an antioxidant flavone analog: Exploring the utility of the small molecule as fluorescent probe for biomacromolecule. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.113] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
11
|
Exploring the non-covalent binding behaviours of 7-hydroxyflavone and 3-hydroxyflavone with hen egg white lysozyme: Multi-spectroscopic and molecular docking perspectives. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 180:25-38. [DOI: 10.1016/j.jphotobiol.2018.01.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 01/18/2018] [Accepted: 01/21/2018] [Indexed: 12/11/2022]
|
12
|
Mallick T, Karmakar A, Batuta S, Ahamed G, Das S, Alam MN, Mukherjee M, Das N, Mandal D, Begum NA. Fluorescent Small Molecules Are BIG Enough To Sense Biomacromolecule: Synthesis of Aromatic Thioesters and Understanding Their Interactions with ctDNA. ACS OMEGA 2018; 3:334-348. [PMID: 30023778 PMCID: PMC6044905 DOI: 10.1021/acsomega.7b01933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 12/25/2017] [Indexed: 06/08/2023]
Abstract
The visible fluorescent chromophoric moiety present in the water-soluble photoactive yellow protein (PYP) of Ectothiorhodospira halophila is p-hydroxycinnamic acid linked to the cysteine residue (Cys-69) by a thioester bond and it controls the key photoinduced biological processes of the host organism. In the present work, we have synthesized and characterized three structurally different thiophenyl esters [viz., p-hydroxycinnamic-thiophenyl ester (1), p-N,N-dimethylaminocinnamic-thiophenyl ester (2), and S-phenyl-3-(4-chlorophenyl)-3-(phenylthio)propanethioate (3)] in addition to a novel (to the best of our knowledge) stilbene-type olefinic compound, N1,N1,N2,N2-tetramethyl-1,2-bis(phenylthio)ethene-1,2-diamine (4), under the same reaction condition. All of these four compounds showed characteristic and distinguishable chromophoric/fluorophoric behavior in ethanol and also at pH 7.4. However, we have observed that the intrinsic chromophoric/fluorophoric activities of (1) and (2) were greatly influenced during their interactions with calf-thymus DNA, studied by a range of spectroscopic and physicochemical measurements. We have also applied density functional theory [B3LYP, 6-311G+(d,p)]-based method to get optimized structures of (1) and (2), which were explored further for molecular docking studies to understand their mode of interaction with DNA. The present study opens up their possible applications as fluorescence probes for biomacromolecules like DNA in future.
Collapse
Affiliation(s)
- Tamanna Mallick
- Department
of Chemistry and Department of Biotechnology, Visva-Bharati
(Central University), Santiniketan 731235, India
| | - Abhijit Karmakar
- Department
of Chemistry and Department of Biotechnology, Visva-Bharati
(Central University), Santiniketan 731235, India
| | - Shaikh Batuta
- Department
of Chemistry and Department of Biotechnology, Visva-Bharati
(Central University), Santiniketan 731235, India
| | - Giasuddin Ahamed
- Department
of Chemistry, University College of Science and Technology, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata 700009, India
| | - Sreeparna Das
- Department
of Chemistry and Department of Biotechnology, Visva-Bharati
(Central University), Santiniketan 731235, India
| | - Md. Niharul Alam
- Department
of Chemistry and Department of Biotechnology, Visva-Bharati
(Central University), Santiniketan 731235, India
| | - Madhumathan Mukherjee
- Department
of Chemistry and Department of Biotechnology, Visva-Bharati
(Central University), Santiniketan 731235, India
| | - Nilanjana Das
- Department
of Chemistry and Department of Biotechnology, Visva-Bharati
(Central University), Santiniketan 731235, India
| | - Debabrata Mandal
- Department
of Chemistry, University College of Science and Technology, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata 700009, India
| | - Naznin Ara Begum
- Department
of Chemistry and Department of Biotechnology, Visva-Bharati
(Central University), Santiniketan 731235, India
| |
Collapse
|
13
|
Grigalius I, Petrikaite V. Relationship between Antioxidant and Anticancer Activity of Trihydroxyflavones. Molecules 2017; 22:molecules22122169. [PMID: 29215574 PMCID: PMC6149854 DOI: 10.3390/molecules22122169] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/03/2017] [Accepted: 12/06/2017] [Indexed: 11/16/2022] Open
Abstract
Plant polyphenols have been highlighted not only as chemopreventive, but also as potential anticancer substances. Flavones are a subclass of natural flavonoids reported to have an antioxidant and anticancer activity. The aim of our study was to evaluate antioxidant and anticancer activity of seventeen trihydroxyflavone derivatives, including apigenin (API) and baicalein (BCL). Also, we wanted to find out if there is a correlation between those two effects. Cell growth inhibition testing was carried out using MTT assay in three different human cancer cell lines: lung (A549), breast (MCF-7) and brain epithelial (U87). Antioxidant activity was determined by the DPPH radical scavenging method. Thirteen trihydroxyflavones possessed anticancer activity against at least one tested cancer cell line. They were more active against the MCF-7 cell line, and the lowest activity was determined against the U87 cell line. The majority of compounds inhibited cancer cell growth at EC50 values between 10-50 µM. The most active compound was 3',4',5-trihydroxyflavone 7, especially against A549 and MCF-7 cell lines. The correlation between anti-proliferative and antioxidant activity was only moderate, and it was determined for A549 and U87 cancer cell lines. The most important fragment for those two effects is the ortho-dihydroxy group in ring B. CONCLUSIONS Trihydroxyflavones demonstrated anticancer activity. Further and more detailed studies should to be carried out to estimate the structure-activity relationship of these compounds.
Collapse
Affiliation(s)
- Ignas Grigalius
- Department of Drug Chemistry, Faculty of Pharmacy, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania.
| | - Vilma Petrikaite
- Department of Drug Chemistry, Faculty of Pharmacy, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania.
| |
Collapse
|
14
|
Stompor M, Świtalska M, Wietrzyk J. Synthesis and biological evaluation of acyl derivatives of hydroxyflavones as potent antiproliferative agents against drug resistance cell lines. ACTA ACUST UNITED AC 2017; 73:87-93. [DOI: 10.1515/znc-2017-0093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 10/16/2017] [Indexed: 11/15/2022]
Abstract
Abstract
The synthesis of hydroxyflavone derivatives is described. The acyl derivatives of 3-, 6-, 7-hydroxyflavones (compounds 2, 4, 6, respectively) and chrysin (5,7-dihydroxyflavone, 7) were obtained in high yields and evaluated in vitro for their cytotoxic activity against several cancer cell lines of different origin: MCF-7 (breast cancer), A549 (nonsmall cell lung cancer), MES-SA (uterine sarcoma), LoVo (colon cancer), drug-resistant human cancer cells (MES-SA/DX5, LoVo/DX) and also towards non-cancer cell line MCF-10A (normal breast epithelial cells). The flavones modified with acyl group showed higher antiproliferative activity than free hydroxyflavones. The highest activity was noted for 3-acetoxyflavone (2), which proved active against LoVo, LoVo/DX, and MES-SA cell lines (IC50 from 4.7 μM to 7.8 μM, respectively). The highest ability to overcome the barrier of resistance (resistance index=0.82) against the drug-resistant MES-SA/DX5 cells compared to the parental drug-sensitive MES-SA cell line was found for 7-acetoxyflavone (6).
Collapse
Affiliation(s)
- Monika Stompor
- Faculty of Medicine, Centre for Innovative Research in Medical and Natural Sciences , University of Rzeszów , Warzywna 1a 35-310 , Rzeszów , Poland , Phone: +48 17 851 68 55
- Department of Biochemistry, Faculty of Medicine , University of Rzeszów , Warzywna 1a 35-310 , Rzeszów , Poland
| | - Marta Świtalska
- Department of Experimental Oncology , Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences , Weigla 12 53–114 , Wrocław , Poland
| | - Joanna Wietrzyk
- Department of Experimental Oncology , Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences , Weigla 12 53–114 , Wrocław , Poland
| |
Collapse
|
15
|
Samsonowicz M, Regulska E. Spectroscopic study of molecular structure, antioxidant activity and biological effects of metal hydroxyflavonol complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:757-771. [PMID: 27792987 DOI: 10.1016/j.saa.2016.10.031] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 10/11/2016] [Accepted: 10/18/2016] [Indexed: 05/05/2023]
Abstract
Flavonols with varied hydroxyl substitution can act as strong antioxidants. Thanks to their ability to chelate metals as well as to donate hydrogen atoms they have capacity to scavenge free radicals. Their metal complexes are often more active in comparison with free ligands. They exhibit interesting biological properties, e.g. anticancer, antiphlogistic and antibacterial. The relationship between molecular structure and their biological properties was intensively studied using spectroscopic methods (UV-Vis, IR, Raman, NMR, ESI-MS). The aim of this paper is review on spectroscopic analyses of molecular structure and biological activity of hydroxyflavonol metal complexes.
Collapse
Affiliation(s)
- Mariola Samsonowicz
- Bialystok University of Technology, Division of Chemistry, Wiejska 45E, 15-351 Bialystok, Poland.
| | - Ewa Regulska
- Bialystok University of Technology, Division of Chemistry, Wiejska 45E, 15-351 Bialystok, Poland
| |
Collapse
|
16
|
Pandiyan RP, Raman N. Biological screening and DNA nuclease activity of transition metal complexes of N2O2type of Knoevenagel condensate Schiff base. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3466] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
| | - Natarajan Raman
- Research Department of Chemistry; VHNSN College; Virudhunagar 626 001 Tamil Nadu India
| |
Collapse
|
17
|
Serdiuk IE, Roshal AD. 7-Hydroxyflavone Revisited. 2. Substitution Effect on Spectral and Acid–Base Properties in the Ground and Excited States. J Phys Chem A 2015; 119:12672-85. [DOI: 10.1021/acs.jpca.5b09185] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Illia E. Serdiuk
- Department
of Chemistry, University of Gdańsk, Gdańsk, 80-308 Poland
- Institute
of Chemistry, V. N. Karazin Kharkiv National University, Kharkiv, 61022 Ukraine
| | - Alexander D. Roshal
- Institute
of Chemistry, V. N. Karazin Kharkiv National University, Kharkiv, 61022 Ukraine
| |
Collapse
|
18
|
Yuan X, Gu W, Xiao M, Xie W, Wei S, Zhou L, Zhou J, Shen J. Interactions of CT DNA with hexagonal NaYF4 co-doped with Yb(3+)/Tm(3+) upconversion particles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:995-1003. [PMID: 25305602 DOI: 10.1016/j.saa.2014.08.087] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/30/2014] [Accepted: 08/24/2014] [Indexed: 06/04/2023]
Abstract
The interaction of UCPs with CT DNA are studied in detail by zeta potential, Energy dispersive spectrometer (EDS) spectroscopy, Thermogravimetric (TGA) analysis, DNA melting determination and various spectroscopic techniques including Ultraviolet-Visible (UV-Vis) absorption, fluorescence, circular dichroism (CD), Fourier transform infrared (FTIR) and Raman spectroscopy. The results indicate that CT DNA can assemble on the surface of UCPs mainly by relative stronger hydrophobic force and electrostatic binding, and the predominant interaction site is the deoxyribosyl phosphate backbone of CT DNA. Moreover, after interacting with UCPs, the double helix structure of DNA is undamaged.
Collapse
Affiliation(s)
- Xiuxue Yuan
- College of Chemistry and Materials Science, Analysis and Testing Centre, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, China
| | - Wenchao Gu
- College of Chemistry and Materials Science, Analysis and Testing Centre, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, China
| | - Mengsi Xiao
- College of Chemistry and Materials Science, Analysis and Testing Centre, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, China
| | - Wenli Xie
- College of Chemistry and Materials Science, Analysis and Testing Centre, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, China
| | - Shaohua Wei
- College of Chemistry and Materials Science, Analysis and Testing Centre, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, China
| | - Lin Zhou
- College of Chemistry and Materials Science, Analysis and Testing Centre, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, China.
| | - Jiahong Zhou
- College of Chemistry and Materials Science, Analysis and Testing Centre, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, China.
| | - Jian Shen
- College of Chemistry and Materials Science, Analysis and Testing Centre, Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Key Laboratory of Applied Photochemistry, Nanjing Normal University, China
| |
Collapse
|
19
|
Synthesis, molecular structure, theoretical calculation, DNA/protein interaction and cytotoxic activity of manganese(III) complex with 8-hydroxyquinoline. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 142:220-31. [DOI: 10.1016/j.jphotobiol.2014.12.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 11/17/2014] [Accepted: 12/01/2014] [Indexed: 12/28/2022]
|
20
|
Song P, Zhao L, Ji S. Facile Synthesis of 4-H-Pyran Derivatives Bearing Indole Skeleton via [3+3] Cyclization of 3-Indolyl-3-oxopropanenitriles with Dialkyl Acetylenedicarboxylates and Isocyanides. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400155] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
21
|
Janjua NK, Akhter Z, Jabeen F, Iftikhar B. Cyclic Voltammetric Investigation of Interactions between Bisnitroaromatic Compounds and ds.DNA. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2014. [DOI: 10.5012/jkcs.2014.58.2.153] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
22
|
Simultaneous quantitation of 5- and 7-hydroxyflavone antioxidants and their binding constants with BSA using dual chiral capillary electrophoresis (dCCE) and HPLC with fluorescent detection. Talanta 2014; 119:417-24. [DOI: 10.1016/j.talanta.2013.11.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 11/06/2013] [Accepted: 11/08/2013] [Indexed: 12/27/2022]
|
23
|
Li H, Bu X, Lu J, Xu C, Wang X, Yang X. Interaction study of ciprofloxacin with human telomeric DNA by spectroscopy and molecular docking. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 107:227-234. [PMID: 23434548 DOI: 10.1016/j.saa.2013.01.069] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 01/23/2013] [Accepted: 01/24/2013] [Indexed: 06/01/2023]
Abstract
The interaction of ciprofloxacin (CIP) with human telomeric DNA was studied in vitro using multi-spectroscopy and molecular modeling methods. The hypochromic effect with a red shift in ultraviolet (UV) absorption indicated the occurrence of the interaction between CIP and DNA. The fluorescence quenching of CIP was observed with the addition of DNA and was proved to be the static quenching. The binding constant was found to be 9.62×10(4) L mol(-1). Electrospray ionization mass spectrometry (ESI-MS) result further confirmed the formation of 1:1 non-covalent complex between DNA and CIP. Combined with the UV melting results, circular dichroism (CD) results confirmed the existence of groove binding mode, as well as conformational changes of DNA. Molecular docking studies illustrated the visual display of the CIP binding to the GC region in the minor groove of DNA. Specific hydrogen bonds and van der Waals forces were demonstrated as main acting forces between CIP and guanine bases of DNA.
Collapse
Affiliation(s)
- Huihui Li
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China.
| | | | | | | | | | | |
Collapse
|
24
|
Guo Q, Yuan J, Zeng J, He X, Li D. Synthesis of dihydromyricetin–manganese (II) complex and interaction with DNA. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.05.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
25
|
Sancho MI, Almandoz MC, Blanco SE, Castro EA. Spectroscopic study of solvent effects on the electronic absorption spectra of flavone and 7-hydroxyflavone in neat and binary solvent mixtures. Int J Mol Sci 2011; 12:8895-912. [PMID: 22272110 PMCID: PMC3257107 DOI: 10.3390/ijms12128895] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Revised: 11/05/2011] [Accepted: 11/14/2011] [Indexed: 11/17/2022] Open
Abstract
The solvatochromic characteristics of flavone and 7-hydroxyflavone were investigated in neat and binary solvent mixtures. The spectral shifts of these solutes were correlated with the Kamlet and Taft parameters (α, β and π*) using linear solvation energy relationships. The multiparametric analysis indicates that both specific hydrogen bond donor ability and non-specific dipolar interactions of the solvents play an important role in absorption maxima of flavone in pure solvents. The hydrogen bond acceptor ability of the solvent was the main parameter affecting the absorption maxima of 7-hydroxyflavone. The simulated absorption spectra using a TD-DFT method were in good agreement with the experimental ones for both flavones. Index of preferential solvation was calculated as a function of solvent composition. Preferential solvation by ethanol was detected in cyclohexane-ethanol and acetonitrile-ethanol mixtures for flavone and in acetonitrile-ethanol mixtures for 7-hydroxyflavone. These results indicate that intermolecular hydrogen bonds between solute and solvent are responsible for the non-linear variation of the solvatochromic shifts on the mole fraction of ethanol in the analyzed binary mixtures.
Collapse
Affiliation(s)
- Matias I. Sancho
- Physical Chemistry Laboratory, Faculty of Chemistry, Biochemistry and Pharmacy, San Luis National University, 5700 San Luis, Argentina; E-Mails: (M.I.S.); (M.C.A.); (S.E.B.)
- Multidisciplinary Institute of Biological Investigations (IMIBIO-SL) CONICET, 5700 San Luis, Argentina
| | - Maria C. Almandoz
- Physical Chemistry Laboratory, Faculty of Chemistry, Biochemistry and Pharmacy, San Luis National University, 5700 San Luis, Argentina; E-Mails: (M.I.S.); (M.C.A.); (S.E.B.)
| | - Sonia E. Blanco
- Physical Chemistry Laboratory, Faculty of Chemistry, Biochemistry and Pharmacy, San Luis National University, 5700 San Luis, Argentina; E-Mails: (M.I.S.); (M.C.A.); (S.E.B.)
- Multidisciplinary Institute of Biological Investigations (IMIBIO-SL) CONICET, 5700 San Luis, Argentina
| | - Eduardo A. Castro
- INIFTA, Chemistry Department, Faculty of Exact Sciences, La Plata National University, 1900 Buenos Aires, Argentina
| |
Collapse
|
26
|
Xu S, Shao Y, Ma K, Cui Q, Liu G, Wu F, Li M. Fluorescence light-up recognition of DNA nucleotide based on selective abasic site binding of an excited-state intramolecular proton transfer probe. Analyst 2011; 136:4480-5. [PMID: 21946800 DOI: 10.1039/c1an15652g] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DNA single-nucleotide polymorphism (SNP) detection has attracted much attention due to mutation-related diseases. Various fluorescence methods for SNP detection have been proposed and many are already in use. However, fluorescence enhancement for signal-on SNP identification without label modification still remains a challenge. Here, we find that the abasic site (AP site) in a DNA duplex can be developed as a binding pocket favorable for the occurrence of the excited-state intramolecular proton transfer (ESIPT) of a 3-hydroxyflavone, fisetin, which is used as a proof of concept for effective SNP identification. Fisetin binding at the AP site is highly selective for target thymine or cytosine facing the AP site by observation of a drastic increase in the ESIPT emission band. In addition, the target recognition selectivity based on this ESIPT process is not affected by flanking bases of the AP site. The binding selectivity of fisetin at the AP site is also confirmed by measurements of fluorescence resonance energy transfer, emission lifetime and DNA melting. The fluorescent signal-on sensing for SNP based on this fluorophore is substantially advantageous over the previously used fluorophores such as the AP site-specific signal-off organic ligands with a similar fluorescing mechanism before and after binding to DNA with hydrogen bonding interaction. We expect that this approach will be employed to develop a practical SNP detection method by locating an AP site toward a target and employing an ESIPT probe as readout.
Collapse
Affiliation(s)
- Shujuan Xu
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
27
|
Janjua NK, Shaheen A, Yaqub A, Perveen F, Sabahat S, Mumtaz M, Jacob C, Ba LA, Mohammed HA. Flavonoid-DNA binding studies and thermodynamic parameters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:1600-1604. [PMID: 21715223 DOI: 10.1016/j.saa.2011.05.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Revised: 04/20/2011] [Accepted: 05/16/2011] [Indexed: 05/31/2023]
Abstract
Interactional studies of new flavonoid derivatives (Fl) with chicken blood ds.DNA were investigated spectrophotometrically in DMSO-H2O (9:1 v/v) at various temperatures. Spectral parameters suggest considerable binding between the flavonoid derivatives studied and ds.DNA. The binding constant values lie in the enhanced-binding range. Thermodynamic parameters obtained from UV studies also point to strong spontaneous binding of Fl with ds.DNA. Viscometric studies complimented the UV results where a small linear increase in relative viscosity of the DNA solution was observed with added optimal flavonoid concentration. An overall mixed mode of interaction (intercalative plus groove binding) is proposed between DNA and flavonoids. Conclusively, investigated flavonoid derivatives are found to be strong DNA binders and seem to be promising drug candidates like their natural analogues.
Collapse
|
28
|
Zhang G, Fu P, Wang L, Hu M. Molecular spectroscopic studies of farrerol interaction with calf thymus DNA. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:8944-8952. [PMID: 21761894 DOI: 10.1021/jf2019006] [Citation(s) in RCA: 149] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The interaction between farrerol and calf thymus DNA in a pH 7.4 Tris-HCl buffer was investigated with the use of neutral red (NR) dye as a spectral probe by UV-vis absorption, fluorescence, and circular dichroism (CD) spectroscopy, as well as viscosity measurements and DNA melting techniques. It was found that farrerol molecules could intercalate into the base pairs of DNA as evidenced by decreases in iodide quenching effect and single-stranded DNA (ssDNA) quenching effect, induced CD spectral changes, and significant increases in relative viscosity and denaturation temperature of DNA. Furthermore, the spectral data matrix of the competitive reaction between farrerol and NR with DNA was resolved with an alternative least-squares (ALS) algorithm, and the concentration profiles in the reaction and the corresponding pure spectra for three species (farrerol, NR, and DNA-NR complex) were obtained. This ALS analysis demonstrated the intercalation of farrerol to the DNA by substituting for NR in the DNA-NR complex. Moreover, the thermodynamic parameters enthalpy change (ΔH°) and entropy change (ΔS°) were calculated to be -16.49 ± 0.51 kJ mol(-1) and 32.47 ± 1.02 J mol(-1) K(-1) via the van't Hoff equation, which suggested that the binding of farrerol to DNA was driven mainly by hydrophobic interactions and hydrogen bonds.
Collapse
Affiliation(s)
- Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China.
| | | | | | | |
Collapse
|
29
|
Dolatabadi JEN. Molecular aspects on the interaction of quercetin and its metal complexes with DNA. Int J Biol Macromol 2010; 48:227-33. [PMID: 21115036 DOI: 10.1016/j.ijbiomac.2010.11.012] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Revised: 11/21/2010] [Accepted: 11/23/2010] [Indexed: 01/28/2023]
Abstract
Flavonoids occupy an important position in chemistry and pharmacology. Various flavonoids, particularly quercetin have potential to form molecular complexes with nucleic acid structure and have attracted recent attention for their prospective clinical and pharmacological utility. This review highlights the properties of quercetin and its different metal complexes as well as their interactions with DNA reported by several research groups. Various analytical techniques were employed including absorbance, fluorescence and circular dichroism spectroscopies, viscosity and voltammetry to provide more details about binding mechanism of these materials with DNA.
Collapse
Affiliation(s)
- Jafar Ezzati Nazhad Dolatabadi
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Daneshgah Street, Tabriz, Iran
| |
Collapse
|