1
|
Qamar M, Shafiullah, Sultanat, Lal H, Rizvi A, Farhan M. Synthesis, characterisation, and in vitro antiparasitic activity of new flavanoidal tetrazinan-6'-ones and their binding study with calf thymus DNA using molecular modelling and spectroscopic techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 321:124757. [PMID: 38959688 DOI: 10.1016/j.saa.2024.124757] [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: 03/28/2024] [Revised: 06/17/2024] [Accepted: 06/28/2024] [Indexed: 07/05/2024]
Abstract
With the developing resistance to traditional antiparasitic medications, the purpose of this study was to efficiently develop a series of six noble flavanoidal tetrazinane-6'-one derivatives by a one-pot reaction pathway. FT-IR, 1HNMR, 13CNMR, and Mass spectra were employed for the structural elucidation of the synthesized compounds (7-12). Clinostomum complanatum, a parasite infection model that has been well-established, demonstrated that all the synthesized compounds are potent antiparasitic agents. DNA is the main target for various medicinal compounds. As a result, thestudy of how small molecules attach to DNA has received a lot of attention. In the present study, we have performed various biophysical techniques to determine the mode of binding of synthesized compounds (7-12) with calf thymus DNA (ct-DNA). It was observed from the UV-visible absorbance and fluorescence spectra that all synthesized compounds (7-12) form complexes with the ct-DNA. The value of binding constant (Kb) was obtained to be in the range of 4.36---24.50 × 103 M - 1 at 298 K. Competitive displacement assay with ethidium bromide (EB), CD spectral analysis, viscosity measurements, and in silico molecular docking confirmed that ligands (7-12) incorporate with ct-DNA through groove binding only. Molecular docking studies were performed for all synthesized compounds with the calf thymus DNA and it was found that all the newly synthesized compounds strongly bind with the chain B of DNA in the minor groove with the value of binding energy in the range of -8.54 to -9.04 kcal per mole and several hydrogen bonding interactions.
Collapse
Affiliation(s)
- Mohd Qamar
- Department of Chemistry, Aligarh Muslim University Aligarh, India, 202002
| | - Shafiullah
- Department of Chemistry, Aligarh Muslim University Aligarh, India, 202002.
| | - Sultanat
- Department of Chemistry, Aligarh Muslim University Aligarh, India, 202002
| | - Hira Lal
- Department of Chemistry, Aligarh Muslim University Aligarh, India, 202002
| | - Asim Rizvi
- Department of Kulliyat, Faculty of Unani Medicine, Aligarh Muslim University, Aligarh 202002, India
| | - Mohd Farhan
- Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| |
Collapse
|
2
|
Eslami Moghadam M, Tavakoli Hafshajani K, Sohrabi N, Rezaeisadat M, Oftadeh M. Platinum (II) complex of isopentyl glycine ligand: DNA binding, molecular dynamic, and anticancer activity against breast cancer. J Biomol Struct Dyn 2024; 42:8229-8241. [PMID: 37578043 DOI: 10.1080/07391102.2023.2246564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/29/2023] [Indexed: 08/15/2023]
Abstract
In this paper, we performed thorough experimental and theoretical calculations to examine the interaction between Pt derivative, as an anticancer, and ct-DNA. The mode of DNA binding with [Pt(NH3)2(Isopentylgly)]NO3, where Isopentylgly is Isopentyl glycine, was evaluated by various spectroscopic methods, docking, and molecular dynamics simulation studies. UV-Vis and fluorescence spectroscopic titration results and CD spectra of DNA-drug showed this interaction is via groove binding. Also, thermal stability studies or DNA melting temperature changes (ΔTm), as well as the quenching emissions monitoring proved it. Also, the thermodynamic parameter and binding constant displayed that complex-DNA formation is a spontaneous process, and H-binding and also groove binding were found to be the main forces. Theoretical studies stated [Pt(NH3)2(Isopentylgly)]NO3-DNA formation occurs on C-G center on DNA, along with rising DNA-compound stability. IC50 value against the human breast cell line probably is due to the Isopentyl glycine ligand in the structure of the Pt compound, and it was obtained more than cisplatin and less than carboplatin against the MCF7 cell.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
| | | | - Nasrin Sohrabi
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | | | - Mohsen Oftadeh
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| |
Collapse
|
3
|
Amir M, Aamir Qureshi M, Khan A, Nayeem SM, Ayoub Malik W, Javed S. Exploring the interaction of tepotinib with calf thymus DNA using molecular dynamics simulation and multispectroscopic techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123678. [PMID: 38039637 DOI: 10.1016/j.saa.2023.123678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/05/2023] [Accepted: 11/21/2023] [Indexed: 12/03/2023]
Abstract
In recent times, there has been a surge in the discovery of drugs that directly interact with DNA, influencing gene expression. As a result, understanding how biomolecules interact with DNA has become a major area of research. One such drug is Tepotinib (TPT), an FDA-approved anti-cancer medication known as a MET tyrosine kinase inhibitor, used in chemotherapy for metastatic non-small cell lung cancer (NSCLC) with MET exon 14 skipping alterations. In our study, we adopted both biophysical and in-silico methods to investigate the binding relationship of TPT and ctDNA. The absorption spectra of ctDNA exhibited a hypochromic effect when titrated with TPT and the binding constant of TPT-ctDNA complex was calculated, Ka = 9.91 × 104 M-1. By computing bimolecular enhancement constant (KB) and thermodynamic enhancement constant (KD) in fluorometric investigations, it was found that the fluorescence enhancement is a result of a static process involving the ctDNA-TPT complex formation in the ground state, as opposed to a dynamic process. The displacement assay results further supported this finding, showing that TPT exhibits a binding preference for minor groove of ct-DNA and was also demonstrated by KI quenching and CD spectroscopy. The molecular docking and molecular dynamic simulations validated TPT's groove binding nature and binding pattern with ctDNA, respectively. Thus, the results of our present investigation offer valuable insights into the interaction between TPT and ctDNA. It is evident that TPT, as an anti-cancer medication, binds to the minor groove of ctDNA.
Collapse
Affiliation(s)
- Mohd Amir
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India.
| | - Mohd Aamir Qureshi
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India.
| | - Ashma Khan
- Department of Chemistry, Faculty of Sciences, Aligarh Muslim University, Aligarh 202002, India.
| | - Shahid M Nayeem
- Department of Chemistry, Faculty of Sciences, Aligarh Muslim University, Aligarh 202002, India.
| | - Waseem Ayoub Malik
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India.
| | - Saleem Javed
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India.
| |
Collapse
|
4
|
Kalyani Bhardwaj B, James A, Tomy J, K B S, Suresh PS. Multi-spectroscopic and in silico investigation of gambogic acid-calf thymus DNA interactions. J Biomol Struct Dyn 2024:1-12. [PMID: 38433426 DOI: 10.1080/07391102.2024.2323694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 02/20/2024] [Indexed: 03/05/2024]
Abstract
Gambogic acid (GA), a xanthanoid compound, is derived from Garcinia Hanbury gamboge resin. Studying GA's DNA binding and targeting processes is crucial to understanding its tumor-targeting potentiality. This study used spectroscopic and in silico methods to investigate the GA-calf thymus DNA-binding interaction. The results of the UV-visible absorbance spectroscopy revealed that GA binds to DNA and forms a complex. Investigation of fluorescence quenching using ethidium bromide-DNA revealed that GA displaced ethidium bromide, and the type of quenching was static in nature, as determined by Stern-Volmer plot data. Thermodynamic analysis of the DNA-GA complex revealed a spontaneous, favorable interaction involving hydrogen bonding and hydrophobic interactions. Quenching experiments with potassium iodide, Acridine orange, and NaCl verified GA's groove-binding nature and the presence of weak electrostatic interactions. The thermal melting temperature of DNA in its native and bound states with GA did not differ significantly (69.27° C to 71.25° C), validating the binding of GA to the groove region. Furthermore, the groove-binding nature of GA was confirmed by studying its interaction with ssDNA and DNA viscosity. The methods of DSC, FT-IR, and CD spectroscopy have not revealed any structural aberrations in DNA bound with GA. Molecular docking and modeling studies revealed that GA has a groove-binding nature with DNA, which is consistent with prior experimental results. Finally, the findings shed information by which GA attaches to DNA and provide insights into its recognized anticancer effects via topoisomerase inhibition causing DNA cleavage, inhibition of cell proliferation and apoptosis.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
| | - Arsha James
- Department of Bioscience and Engineering, National Institute of Technology, Calicut, Kerala, India
| | - Jiya Tomy
- Department of Bioscience and Engineering, National Institute of Technology, Calicut, Kerala, India
| | - Shalini K B
- Department of Bioscience and Engineering, National Institute of Technology, Calicut, Kerala, India
| | - Padmanaban S Suresh
- Department of Bioscience and Engineering, National Institute of Technology, Calicut, Kerala, India
| |
Collapse
|
5
|
Lavanya K, Saranya J, Bodapati ATS, Reddy RS, Madku SR, Sahoo BK. Biophysical insights on the interaction of anticoagulant drug dicoumarol with calf thymus-DNA: deciphering the binding mode and binding force with thermodynamics. J Biomol Struct Dyn 2024; 42:1392-1403. [PMID: 37038635 DOI: 10.1080/07391102.2023.2199872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 03/31/2023] [Indexed: 04/12/2023]
Abstract
The biological activity of drugs is exhibited due to their interactions with bio-receptors. Dicoumarol (DIC) is a natural hydroxycoumarin and a well-known anticoagulant. DNA is the genetic material and one of the targets of numerous drugs. The interaction of DIC with calf-thymus DNA (ct-DNA) has been studied using different biophysical techniques and docking studies. The binding constant in the order of 103 to 104 M-1 was observed from spectroscopic studies. Thermodynamic studies at 4 different temperatures revealed the spontaneity of the interaction with the entropy-driven process. Marker displacement studies with competitive markers of intercalators (ethidium bromide) and groove binders (Hoechst 33258) confirmed the groove-binding nature of DIC in DNA. The groove-binding mode of DIC was complemented by different studies like viscosity measurements, DNA melting, and the effect of KI on the binding. A minor perturbation in the DNA viscosity and no significant change in the DNA melting temperature (Tm) after binding with DIC further confirms the groove binding mode. The effect of KI on the DIC and DIC-DNA system suggested the absence of DIC intercalation. The absence of significant electrostatic force was revealed from the ionic-strength effect study. Binding-induced conformational variation in ct-DNA was absent in circular dichroism studies. Molecular docking studies suggested the position of DIC within the minor groove of ct-DNA, covering three base pairs long. The outcome of this report may help in understanding the pharmacodynamics and pharmacokinetics of dicoumarol analogs and related molecules.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- K Lavanya
- Department of H&S (Chemistry), Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad, India
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, Hyderabad, India
| | - Jagadeesan Saranya
- Department of H&S (Chemistry), Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad, India
| | - Anna Tanuja Safala Bodapati
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, Hyderabad, India
- Chemistry Division, BS&H Department, BVRIT College of Engineering for Women, Hyderabad, India
| | - Ragaiahgari Srinivas Reddy
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, Hyderabad, India
- Department of Chemistry, B. V. Raju Institute of Technology (BVRIT), Narsapur, India
| | - Shravya Rao Madku
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, Hyderabad, India
- Department of Chemistry, St. Francis College for Women, Hyderabad, India
| | - Bijaya Ketan Sahoo
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, Hyderabad, India
| |
Collapse
|
6
|
Shao WB, Luo RS, Meng J, Lv XK, Xiang HM, Xiao WL, Zhou X, Liu LW, Wu ZB, Yang S. Engineering Phenothiazine-Based Functional Mimics of Host Defense Peptides as New Agrochemical Candidates: Design, Synthesis, and Antibacterial Evaluation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37906428 DOI: 10.1021/acs.jafc.3c03952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
In the protracted "arms race" between host and plant pathogenic bacteria, host organisms have evolved powerful weapons known as host defense peptides (HDPs). However, natural HDPs are not suitable for large-scale applications; therefore, researchers have chosen to develop bespoke small-molecule functional mimics. Phenothiazine derivatives were developed as functional HDPs mimics, owing to their broad biological activity and high lipophilicity. The phenothiazine analogues designed in this study exhibited excellent in vitro bioactivity against the three Gram-negative bacteria Xanthomonas oryzae pv oryzae, Xanthomonas axonopodis pv citri, and Pseudomonas syringae pv actinidiae, with optimal EC50 values of 0.80, 0.31, and 1.91 μg/mL, respectively. Preliminary evidence suggests that compound C2 may act on bacterial cell membranes and interact with bacterial Deoxyribonucleic acid in the groove binding mode. In vivo trials showed that compound C2 was highly effective against rice leaf blight (51.97-56.69%), with activity superior to those of bismerthiazol (40.7-43.4%) and thiodiazole copper (30.2-37.1%). Our study provides strong evidence to support the development of phenothiazine derivatives into pesticide candidates.
Collapse
Affiliation(s)
- Wu-Bin Shao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Rong-Shuang Luo
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jiao Meng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiao-Kang Lv
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Hong-Mei Xiang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wan-Lin Xiao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiang Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Li-Wei Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Zhi-Bing Wu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Song Yang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| |
Collapse
|
7
|
Samari F, Hemmateenejad B, Aparicio S, Rashidi M, Shamsipur M, Hosseini SM. Intercalative binding of two new five-coordinated anticancer Pt(II) complexes to DNA: experimental and computational approaches. J Biomol Struct Dyn 2023; 41:8751-8761. [PMID: 36318521 DOI: 10.1080/07391102.2022.2137240] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 10/11/2022] [Indexed: 11/05/2022]
Abstract
Binding interaction of two organoplatinum complexes, [Pt(C^N)Cl(dppa)], 1, and [Pt(C^N)Cl(dppm)], 2, (C^N = N(1), C(2')-chelated, deprotonated 2-phenylpyridine, dppa = bis(diphenylphosphino)amine, dppm = bis(diphenylphosphino)methane), as anti-tumor agents, with calf thymus DNA (CT-DNA) under pseudo-physiological conditions has been investigated using various biophysical techniques viz., UV-Vis and fluorescence spectroscopies, viscosity measurements, and thermal denaturation experiments. A hypochromic shift in UV-Vis absorption titration, fluorescence enhancement of Pt(II) complexes in the presence of CT-DNA, fluorescence quenching in competitive ethidium bromide displacement assay, and an uptrend in the viscosity (η) and melting temperature (Tm) indicated the existence of a tight intercalative interaction of Pt(II) complexes with CT-DNA. The fluorescence quenching of CT-DNA was a combined quenching of static and dynamic with Stern-Volmer quenching constants of 7.520 × 103 M-1 for complex 1 and 5.183 × 103 M-1 for complex 2, at low concentrations of Pt(II) complexes. Besides the experimental studies, computational studies were done. Molecular modeling studies confirmed the intercalation of the studied complexes by the phenyl groups of dppa and dppm, leading to π-π interactions but with a certain steric hindrance because of the size and shape of the considered complexes. The combination of experimental and computational data showed that reported Pt(II) complexes are promising structures and could be developed for cancer therapeutic applications.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Fayezeh Samari
- Department of Chemistry, Faculty of Sciences, University of Hormozgan, Bandar Abbas, Iran
- Nanoscience, Nanotechnology and Advanced Materials Research Center, University of Hormozgan, Bandar Abbas, Iran
| | | | | | - Mehdi Rashidi
- Department of Chemistry, Shiraz University, Shiraz, Iran
| | | | - Sayed Mostafa Hosseini
- Department of Chemistry, Faculty of Sciences, University of Hormozgan, Bandar Abbas, Iran
| |
Collapse
|
8
|
Pan B, Lv M, Du H, Zhao D, Lu K. Spectroscopic studies on noncovalent binding of nicotinamide-modified BRCA1 (856-871) analogs to calf thymus DNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 294:122531. [PMID: 36854231 DOI: 10.1016/j.saa.2023.122531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/02/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
Various peptide drugs have entered the market with the development of molecular biology. Peptide drugs are used for treat diseases such as diabetes, breast cancer, and HIV infection. In this study, three nicotinamide-modified peptides were synthesized by modifying the N-terminus of BRCA1 (856-871, Y856R, K862Y, R866W) peptide with three nicotinic acid derivatives using solid-phase peptide synthesis. The results of calf thymus DNA (ctDNA) binding activity indicated that binding constants of BRCA1 (856-871, Y856R, K862Y, R866W) (P0) and three nicotinamide-modified peptides (P1, P2, and P3) to ctDNA were 1.89 × 103, 2.97 × 104, 7.61 × 104, and 8.09 × 104 L·mol-1, respectively. The binding affinity of the modified peptides was superior to that of BRCA1 (856-871, Y856R, K862Y, R866W). ΔHθ < 0 and ΔSθ < 0 indicated that van der Waals force and hydrogen bond contributed most to peptide-ctDNA binding. Results obtained by Circular dichroism (CD) indicated that peptide binding interaction led to conformational changes in ctDNA. Ultraviolet-visible (UV) spectroscopy, ethidium bromide (EB) competition experiments, DNA melting experiments, and viscosity measurements verified that peptides interacted with ctDNA via groove binding. Ionic strength experiments manifested that electrostatic binding was also involved in peptide-ctDNA binding.
Collapse
Affiliation(s)
- Boyuan Pan
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, Henan, China; School of Chemical Engineering and Food Science, Zhengzhou University of Technology, Zhengzhou 450044, Henan, China
| | - Mingxiu Lv
- School of Chemical and Printing-Dyeing Engineering, Henan University of Engineering, Zhengzhou 450007, Henan, China
| | - Heng Du
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, Henan, China
| | - Dongxin Zhao
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, Henan, China
| | - Kui Lu
- School of Chemical Engineering and Food Science, Zhengzhou University of Technology, Zhengzhou 450044, Henan, China.
| |
Collapse
|
9
|
Tavakoli Hafshajani K, Sohrabi N, Eslami Moghadam M, Oftadeh M. Spectroscopy and molecular dynamic study of the interaction of calf thymus DNA by anticancer Pt complex with butyl glycine ligand. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122826. [PMID: 37216815 DOI: 10.1016/j.saa.2023.122826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 04/29/2023] [Accepted: 05/04/2023] [Indexed: 05/24/2023]
Abstract
Despite the past few decades since the discovery of anticancer drugs, there is still no definitive treatment for its treatment. Cisplatin is a chemotherapy medication used to treat some cancers. In this research, the DNA binding affinity of Pt complex with butyl glycine ligand was studied by various spectroscopy methods and simulation studies. Fluorescence and UV-Vis spectroscopic data showed groove binding in ct-DNA-[Pt(NH3)2(butylgly)]NO3 complex formation by the spontaneous process. The results were also confirmed by small changes in CD spectra and thermal study (Tm), as well as the quenching emission of [Pt(NH3)2(butylgly)]NO3 complex on DNA. Finally, thermodynamic and binding parameters displayed that hydrophobic forces are the main forces. Based on docking simulation, [Pt(NH3)2(butylgly)]NO3 could bind to DNA and via minor groove binding on C-G center on DNA, formed a stable DNA complex.
Collapse
Affiliation(s)
| | - Nasrin Sohrabi
- Department of Chemistry, Payame Noor University (PNU), P.O.Box 19395-4697, Tehran, Iran.
| | | | - Mohsen Oftadeh
- Department of Chemistry, Payame Noor University (PNU), P.O.Box 19395-4697, Tehran, Iran
| |
Collapse
|
10
|
Batibay GS, Keser Karaoglan G, Gumrukcu Kose G, Ozcelik Kazancioglu E, Metin E, Danisman Kalindemirtas F, Erdem Kuruca S, Arsu N. DNA groove binder and significant cytotoxic activity on human colon cancer cells: Potential of a dimeric zinc (II) phthalocyanine derivative. Biophys Chem 2023; 295:106974. [PMID: 36827854 DOI: 10.1016/j.bpc.2023.106974] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023]
Abstract
The interaction of a multi-component system consisting of benzene-1,4-diyldimethanimine-bridged dimeric zinc-phthalocyanine groups (4OMPCZ) with calf thymus DNA (ct-DNA) was investigated using UV-Vis absorption, fluorescence emission spectroscopy methods, and viscosity measurements. The binding constant, Kb, which is an important parameter to gain information about the binding mode, was found as 9.7 × 107 M-1 from the UV-Vis absorption studies. Another important spectrophotometric tool is competitive displacement assays with Ethidium bromide and Hoechst 33342. Through this experiment, a higher KSV value was obtained with Hoechst for the phthalocyanine derivative, 4OMPCZ, and the ct-DNA complex than with ethidium bromide. Additionally, molecular docking studies were conducted to calculate the theoretical binding constant and visualize the interactions of 4OMPCZ with a model DNA. According to docking results, although the interactions are mainly located in the major groove of the DNA helix, due to the wrapping, these interactions can also be extended to the minor groove of the DNA. Spectrophotometric, molecular docking, and viscosity studies revealed that the interaction of 4OMPCZ with DNA is likely to be via the major and minor grooves. The in vitro cytotoxic activity of 4OMPCZ was evaluated by MTT assay on human colon cancer cells (HT29) after 72 h of treatment. 4OMPCZ indicated significant cytotoxic activity when stimulated with UV light compared to the standard chemotherapy drugs, fluorouracil (5-FU), and cisplatin on HT29 colon cancer cells. The IC50 value of 4OMPCZ displayed considerably lower concentrations compared to the standard drugs, 5-FU, and cisplatin.
Collapse
Affiliation(s)
- Gonul S Batibay
- Yildiz Technical University, Department of Chemistry, Davutpasa Campus, 34220 Istanbul, Turkey
| | - Gulnur Keser Karaoglan
- Yildiz Technical University, Department of Chemistry, Davutpasa Campus, 34220 Istanbul, Turkey
| | - Gulsah Gumrukcu Kose
- Yildiz Technical University, Department of Chemistry, Davutpasa Campus, 34220 Istanbul, Turkey
| | | | - Eyup Metin
- Yildiz Technical University, Department of Chemistry, Davutpasa Campus, 34220 Istanbul, Turkey; Turkish-German University, Department of Materials Science and Technology, 34820 Istanbul, Turkey
| | - Ferdane Danisman Kalindemirtas
- Erzincan Binali Yildirim University, Faculty of Medicine, Department of Physiology, Erzincan 24100, Turkey; Istanbul University, Faculty of Medicine, Department of Physiology, 34093 Istanbul, Turkey
| | - Serap Erdem Kuruca
- Atlas University, Faculty of Medicine, Department of Physiology, Istanbul 34403, Turkey; Istanbul University, Faculty of Medicine, Department of Physiology, 34093 Istanbul, Turkey
| | - Nergis Arsu
- Yildiz Technical University, Department of Chemistry, Davutpasa Campus, 34220 Istanbul, Turkey.
| |
Collapse
|
11
|
Tavakoli Hafshejani K, Sohrabi N, Eslami Moghadam M, Oftadeh M. Investigation of the physico-chemical interaction of ct-DNA with Anticancer Glycine Derivative of Pt-complex by applying docking and MD simulation methods and multi-spectroscopic techniques. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
12
|
Chen L, Zhu M, Hu X, Pan J, Zhang G. Exploring the binding mechanism of ferulic acid and ovalbumin: insights from spectroscopy, molecular docking and dynamics simulation. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:3835-3846. [PMID: 34927253 DOI: 10.1002/jsfa.11733] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 12/15/2021] [Accepted: 12/19/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Ferulic acid (FA), a phenolic acid widely occurring in nature, has attracted extensive attention because of its biological activity. Ovalbumin (OVA) is a commonly used carrier protein. The mechanism of FA binding with OVA was investigated by utilizing a variety of spectral analyses, accompanied by computer simulation. RESULTS It was discovered that the fluorescence quenching mechanism of OVA by FA was a static mode as a result of the formation of an FA-OVA complex, which was verified by the concentration distributions and pure spectrum of the constituents decomposed from the high overlap spectrum signals using multivariate curve resolution-alternate least squares algorithm. Hydrogen bonds and Van der Waals forces drove the formation of FA-OVA complex with a binding constant of 1.69 × 104 L mol-1 . The presence of FA induced the loose structure of OVA with an attenuation of α-helix content and improved the thermal stability of OVA. Computer docking indicated that FA interacted with the amino acid residues Arg84, Asn88, Leu101 and Ser103 of OVA through hydrogen bonds. Molecular dynamics simulation proved that the combination of FA with OVA boosted the conformational stability of OVA and hydrogen bonds brought a crucial part in stabilizing the structure of the complex. CONCLUSIONS The study may supply the theoretical basis for the design of FA transport system using OVA as carrier protein to improve the instability and low bioavailability of FA. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Lei Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Miao Zhu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| |
Collapse
|
13
|
Hu X, Luo X, Zhou Z, Wang R, Hu Y, Zhang G, Zhang G. Multi-Spectroscopic and Molecular Simulation Approaches to Characterize the Intercalation Binding of 1-Naphthaleneacetic Acid With Calf Thymus DNA. FRONTIERS IN TOXICOLOGY 2022; 3:620501. [PMID: 35295128 PMCID: PMC8915802 DOI: 10.3389/ftox.2021.620501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 03/22/2021] [Indexed: 01/04/2023] Open
Abstract
1-Naphthaleneacetic acid (NAA), having high-quality biological activity and great yield-increasing potential in agricultural production, is a broad-spectrum plant growth regulator. Although NAA is of low toxicity, it can affect the balance of the human metabolism and damage the body if it is used in high quantity for a long time. In this study, the interaction of NAA with calf thymus DNA (ctDNA) was investigated under simulated human physiological acidity (pH 7.4) using fluorescence, ultraviolet-visible absorption, and circular dichroism spectroscopy combined with viscosity measurements and molecular simulation techniques. The quenching of the endogenous fluorescence of NAA by ctDNA, observed in the fluorescence spectrum experiment, was a mixed quenching process that mainly resulted from the formation of the NAA-ctDNA complex. NAA mainly interacted with ctDNA through hydrophobic interaction, and the binding constant and quenching constant at room temperature (298 K) were 0.60 × 105 L mol-1 and 1.58 × 104 L mol-1, respectively. Moreover, the intercalation mode between NAA and ctDNA was verified in the analysis of melting point, KI measurements, and the viscosity of ctDNA. The results were confirmed by molecular simulation, and it showed that NAA was enriched near the C-G base of ctDNA. As shown in circular dichroism spectra, the positive peak intensity of ctDNA intensified along with a certain degree of redshift, while the negative peak intensity decreased after binding with NAA, suggesting that the binding of NAA induced the transformation of the secondary structure of ctDNA from B-form to A-form. These researches will help to understand the hazards of NAA to the human body more comprehensively and concretely, to better guide the use of NAA in industry and agriculture.
Collapse
Affiliation(s)
- Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xiaoqiao Luo
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Zhisheng Zhou
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Rui Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Yaqin Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Guimei Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| |
Collapse
|
14
|
Yasmeen S, Qais FA, Rana M, Islam A, Rahisuddin. Binding and thermodynamic study of thalidomide with calf thymus DNA: Spectroscopic and computational approaches. Int J Biol Macromol 2022; 207:644-655. [PMID: 35278515 DOI: 10.1016/j.ijbiomac.2022.03.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 02/09/2023]
Abstract
The thalidomide-DNA interactions have been investigated in detail by numerous biophysical techniques such as UV-vis, dye displacement assay, viscosity, cyclic voltammetry, circular dichroism, molecular docking, molecular dynamic simulation, FT-IR and 1H NMR spectroscopy. CD spectroscopy, thermal denaturation and viscosity measurement explained that thalidomide is groove binder. Molecular docking analysis highlighted that thalidomide binds trough minor groove of calf thymus DNA which also confirmed from dye displacement experiment. To our knowledge, this is the first instance thalidomide was shown to binds with calf thymus DNA. Molecular dynamic simulation indicated that the thalidomide-DNA system was stabilized by electrostatic attraction as the main interaction and mode of binding is minor groove. Our study provides a better understanding to the DNA-thalidomide binding affinity and it mechanism. Overall, all these in formations can be used for further understanding the pharmacological effects of thalidomide.
Collapse
Affiliation(s)
- Shama Yasmeen
- Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Aligarh Muslim University, Aligarh, UP 202002, India
| | - Manish Rana
- Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Asimul Islam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Rahisuddin
- Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India.
| |
Collapse
|
15
|
Huang X, Zhan J, Huang Y, Chen H, Liang Z, Gan C. Studies on the interaction between 3-biotinylate-6-benzimidazole B-nor-cholesterol analogs and ct-DNA. NEW J CHEM 2022. [DOI: 10.1039/d2nj00896c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction mechanism between 3-biotinylate-6-benzimidazole B-nor-cholesterol analogs and ct-DNA was studied under conditions similar to physiological. The interaction mechanism between ct-DNA and three different types of compounds was studied by spectroscopic...
Collapse
|
16
|
Akram M, Lal H, Kabir-Ud-Din. Exploring the binding mode of ester-based cationic gemini surfactants with calf thymus DNA: A detailed physicochemical, spectroscopic and theoretical study. Bioorg Chem 2021; 119:105555. [PMID: 34923244 DOI: 10.1016/j.bioorg.2021.105555] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 11/29/2021] [Accepted: 12/09/2021] [Indexed: 12/21/2022]
Abstract
Gene therapy is a transfectant method for the treatment of hereditary disease, which transfers the gene mutation into the cells. In the view of the high prospects of utilization of cationic gemini surfactants as a non-viral vector for the gene transfection, we have made a comprehensive study on the interactions between a recently synthesized series of ester-functionalized cationic Cm-E2O-Cm gemini surfactants (m = 12, 14 and 16) with calf thymus deoxyribonucleic acid (ctDNA) utilizing various techniques. The micellization behavior of gemini surfactants has been altered in the presence of ctDNA. A series of measurements (fluorescence, UV-vis and time-resolved fluorescence) show that the quenching of ctDNA proceeds by a static mechanism. The competitive displacement studies (EB, AO and HO), KI quenching analysis, CD studies and viscosity measurements suggested intercalative binding mode in a stoichiometry ratio of 1:1 with the Kb (binding constant) order being: C16-E2O-C16 > C14-E2O-C14 > C12-E2O-C12. The thermodynamic parameters show that the geminis interacted with ctDNA spontaneously through ionic/electrostatic interactions. Furthermore, the theoretical approaches offer accurate insights about the binding of gemini surfactants with DNA, and are in consistence with the experimental results.
Collapse
Affiliation(s)
- Mohd Akram
- Department of Chemistry, Aligarh Muslim University, Aligarh-202002, India.
| | - Hira Lal
- Department of Chemistry, Aligarh Muslim University, Aligarh-202002, India
| | - Kabir-Ud-Din
- Department of Chemistry, College of Natural and Computational Sciences, Arba Minch University, Arba Minch, Ethiopia
| |
Collapse
|
17
|
Su ZQ, Yin MM, Yang ZQ, Hu AH, Hu YJ. Interactions between Two Kinds of Gold Nanoclusters and Calf Thymus Deoxyribonucleic Acid: Directions for Preparations to Applications. Biomacromolecules 2021; 22:4738-4747. [PMID: 34605641 DOI: 10.1021/acs.biomac.1c01028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Gold nanoclusters (AuNCs) have shown promising applications in biotherapy owing to their ultrasmall size and unique molecular-like properties. In order to better guide the preparations and applications of AuNCs, dihydrolipoic acid-protected AuNCs (DHLA-AuNCs) and glutathione-protected AuNCs (GSH-AuNCs) were selected as models and the interactions between them and calf thymus DNA (ctDNA) were studied in detail. The results showed that there was a small difference in the binding mechanisms and forces between both AuNCs and ctDNA. The quenching mechanisms of both AuNCs to (ctDNA-HO) were completely different. The binding constants indicated that the binding strength between DHLA-AuNCs and ctDNA was greater than those of GSH-AuNCs. The conformation investigations showed that GSH-AuNCs had a greater impact on the conformation of ctDNA, and both AuNCs were more inclined to interact with the A-T base pairs of ctDNA. These results indicate that the surface ligand had a significant effect on the interactions between AuNCs and DNA and might also further affect the applications of AuNCs, and these results could guide the preparations of AuNCs. For DHLA-AuNCs, their good biocompatibility made them a potential candidate for application in imaging, drug treatment, sensing, and so on. The resulting base accumulation of ctDNA and weak interactions made GSH-AuNCs have great potential for application in gene therapy, which was consistent with the current reports on the applications of these two AuNCs. This work has pointed out the directions for the preparations and applications of AuNCs.
Collapse
Affiliation(s)
- Zheng-Qi Su
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
| | - Miao-Miao Yin
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
| | - Zi-Qing Yang
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
| | - Ao-Hong Hu
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
| | - Yan-Jun Hu
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
| |
Collapse
|
18
|
Wang R, Li J, Niu DB, Xu FY, Zeng XA. Protective effect of baicalein on DNA oxidative damage and its binding mechanism with DNA: An in vitro and molecular docking study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 253:119605. [PMID: 33667888 DOI: 10.1016/j.saa.2021.119605] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/31/2021] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
In this work, the protective effect of baicalein on DNA oxidative damage and its possible protection mechanisms were investigated. 2-thiobarbituric acid (TBA) colorimetry and agarose gel electrophoresis study found that baicalein protected the deoxyribose residue and double-stranded backbone of DNA from the damage of hydroxyl radicals. Antioxidant analysis results showed that baicalein has excellent radicals scavenging effects and Fe2+ chelating ability, which might be the mechanism of baicalein protecting DNA. DNA binding studies indicated that baicalein bound to the minor groove of DNA with moderate binding affinity (K = (7.35 ± 0.91) × 103 M-1). Hydrogen bonding and van der Waals forces played a major role in driving the binding process. Molecular docking further confirmed the experimental results. This binding could stabilize DNA double helix structure, thereby protecting DNA from oxidative damage. This study may provide theoretical basis for designing new functional foods of baicalein for DNA damage protection.
Collapse
Affiliation(s)
- Rui Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, China
| | - Jian Li
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, China
| | - De-Bao Niu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, China
| | - Fei-Yue Xu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, China
| | - Xin-An Zeng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, China.
| |
Collapse
|
19
|
Hu M, Zhu M, Xin L, Zhang G, Wu S, Hu X, Gong D. Change of benzo(a)pyrene during frying and its groove binding to calf thymus DNA. Food Chem 2021; 350:129276. [PMID: 33609937 DOI: 10.1016/j.foodchem.2021.129276] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 09/21/2020] [Accepted: 12/20/2020] [Indexed: 01/07/2023]
Abstract
Benzo[a]pyrene (BaP), a prototype of polycyclic aromatic hydrocarbons (PAHs) with potential mutagenicity, toxicity and carcinogenicity, is ubiquitous in deep-fried foods. Herein, the changes in eight specific PAHs (PAH8) concentration in sunflower oil during frying were investigated by gas chromatography-triple quadrupole-mass spectrometry (GC-QqQ-MS). PAH8 concentrations in sunflower oil were 23.92-27.82 μg kg-1 and increased with increasing frying time. The detected BaP levels were 3.64-4.00 μg kg-1, exceeding the upper limit (2 μg kg-1) set by European Union (EU), though below the limiting value (10 μg kg-1) in China. The interaction between BaP and calf thymus DNA (ctDNA) was explored through various spectroscopic methods and molecular docking. Melting studies, denaturation experiments, ionic strength effects and viscosity measurements indicated that BaP interacted with ctDNA primarily via groove binding as evidenced by circular dichroism analysis and molecular docking. Further gel electrophoresis assays suggested that DNA was damaged at high levels of BaP.
Collapse
Affiliation(s)
- Mingming Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Miao Zhu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Le Xin
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; Bor S. Luh Food Safety Research Centre, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Shimin Wu
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; Bor S. Luh Food Safety Research Centre, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| |
Collapse
|
20
|
Ender Biçer, Billy TA, Macit M. Voltammetric and Docking Investigation of the Binding Interaction between (E)-1-[(2-Phenoxyphenylimino)methyl]naphthalen-2-ol and Calf Thymus DNA. RUSS J ELECTROCHEM+ 2021. [DOI: 10.1134/s1023193520120046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
21
|
Shahabadi N, Farhadi R. Multispectroscopic and molecular docking studies on DNA binding of guaifenesin drug. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2021; 40:317-335. [PMID: 33463400 DOI: 10.1080/15257770.2021.1872793] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The interaction mechanism of guaifenesin drug; (RS)-3-(2-methoxyphenoxy)propane-1,2-diol; and calf thymus DNA was characterized by multiple spectroscopic and molecular docking approaches. The changes in drug electronic absorption with increasing DNA concentration and also the observed significant quenching of guaifenesin emission in the presence of DNA proved the complex formation between guaifenesin and DNA during the interactions. Both the binding constant and thermodynamic parameters for the interaction have been calculated in 283, 298, and 310 K at pH 7.4. The results Δ H 0 = 17.87 kJ/mol and Δ S 0 = 143.31 J/mol.K confirmed the role of hydrophobic force in the guaifenesin-DNA interaction. Circular dichroism study showed that guaifenesin causes decrease in the negative band of CT-DNA and at the same time the positive band increases which indicated the transition of DNA conformation from B to A. KI quenching experiment specifies that guaifenesin binds to DNA via nonintercalative mode. The competitive studies based on known Hoechst 33258 and methylene blue probes proved the groove binding mode in guaifenesin-DNA adduct. Further, full agreement of molecular docking simulation with the experimental results of binding constant and interaction mode, support high accuracy of the results.
Collapse
Affiliation(s)
- Nahid Shahabadi
- Faculty of Chemistry, Department of Inorganic Chemistry, Razi University, Kermanshah, Iran.,Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Reza Farhadi
- Faculty of Chemistry, Department of Inorganic Chemistry, Razi University, Kermanshah, Iran
| |
Collapse
|
22
|
Mondal P, Sengupta P, Pal U, Saha S, Bose A. Biophysical and theoretical studies of the interaction between a bioactive compound 3,5-dimethoxy-4-hydroxycinnamic acid with calf thymus DNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 245:118936. [PMID: 32977108 DOI: 10.1016/j.saa.2020.118936] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 08/12/2020] [Accepted: 09/07/2020] [Indexed: 06/11/2023]
Abstract
3,5-Dimethoxy-4-hydroxycinnamic acid commonly known as Sinapic acid is a well-known derivative of hydroxycinnamic acids, is commonly present in human diet. Due to its wide variety of pharmacological activities like antioxidant, antimicrobial, anti-inflammatory, anticancer, and anti-anxiety, it has attracted much attention for the researchers. In our previous published work we have already analyzed the interaction between sinapic acid (SA) with a model transport protein. In this work our aim is to demonstrate a detailed investigation of the binding interaction between sinapic acid with another carrier of genetic information in a living cell, the DNA. Here we have used calf thymus DNA (ct-DNA) as a model. The binding characteristic of SA with ct-DNA was investigated by different spectroscopic and theoretical tools. The spectroscopic investigation revealed that quenching of intrinsic fluorescence of SA by ct-DNA occurs through dynamic quenching mechanism. The thermodynamic parameters established the involvement of hydrogen bonding and weak van der Waals forces in the interaction. Further, the circular dichroism, competitive binding experiment with ethidium bromide and potassium iodide quenching experiment suggested that SA possibly binds to the groove position of the ct-DNA. Finally, molecular docking analysis established the SA binds to minor groove position of ct-DNA in G-C rich region through hydrogen bonding interaction. Additionally, gel electrophoresis analysis has been performed to determine the protective efficacy of SA against UVB induced DNA damage and 50 μM of SA was found to protect the DNA from UVB induced damage. We hope that our study could provide the validation of SA on behalf of therapeutics and development of next generation therapeutic drug as well as designing new efficient drug molecule and methodology for the interaction study of the drug with DNA.
Collapse
Affiliation(s)
- Prasenjit Mondal
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata, West Bengal, India
| | - Priti Sengupta
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata, West Bengal, India
| | - Uttam Pal
- Technical Research Centre, S.N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata, India
| | - Sutapa Saha
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, West Bengal, India
| | - Adity Bose
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata, West Bengal, India.
| |
Collapse
|
23
|
Ji C, Yin X, Duan H, Liang L. Molecular complexes of calf thymus DNA with various bioactive compounds: Formation and characterization. Int J Biol Macromol 2020; 168:775-783. [PMID: 33227330 DOI: 10.1016/j.ijbiomac.2020.11.135] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 10/22/2022]
Abstract
The interaction between biomacromolecules and ligands has attracted great interest because of their biological properties. Calf thymus DNA (ctDNA) can interact with bioactive compounds to form complexes. Here, ctDNA-ligand complexes were studied using fluorescence, absorption, and infrared spectroscopy, circular dichroism, ABTS assay and competitive displacement. The binding constants of bioactive compounds at the intercalative site of ctDNA ranked in order kaempferol > apigenin > quercetin > curcumin > riboflavin, while the binding constants at minor groove sites ranked quercetin > kaempferol > naringenin ~ apigenin > hesperetin > curcumin ~ resveratrol ~ riboflavin > caffeic acid. CtDNA maintained stable B-form with an enhancement of base stacking and a decrease of right-handed helicity in the presence of these bioactive compounds, except for hesperetin and caffeic acid. Bioactive compounds preferentially bound to guanine bases and tended to transfer into a more hydrophobic environment upon complexation with ctDNA. The DNA complexation did not affect the ABTS·+ scavenging capacity of quercetin, kaempferol, resveratrol and apigenin but increased the ones of naringenin, caffeic acid, curcumin, hesperetin and riboflavin. The data gathered here should be useful to understand the binding modes of DNA with ligands for their potential application in pharmaceutical and food industries.
Collapse
Affiliation(s)
- Chuye Ji
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
| | - Xin Yin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
| | - Hongwei Duan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
| | - Li Liang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China.
| |
Collapse
|
24
|
Li N, Hu X, Pan J, Zhang Y, Gong D, Zhang G. Insights into the mechanism of groove binding between 4-octylphenol and calf thymus DNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 238:118454. [PMID: 32413714 DOI: 10.1016/j.saa.2020.118454] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
4-Octylphenol is an endocrine disruptor, belonging to environmental estrogens. It can be enriched in the human body through the food chain and may harm human health. Herein, we used a variety of spectroscopic techniques, molecular docking, and gel electrophoresis to study the interaction of 4-octylphenol and ctDNA. It was found that the mechanism of ctDNA quenching the endogenous fluorescence of 4-octylphenol was static quenching, and formed a complex. The negative enthalpy change (ΔH°), entropy change (ΔS°) and Gibbs free energy (ΔG°) have shown that 4-octylphenol and ctDNA spontaneously bind together under the action of hydrogen bonds and van der Waal's force. Viscosity, melting temperature and iodide quenching experiments showed that 4-octylphenol acted on the groove of ctDNA. Insignificant change in circular dichromism spectra further confirmed this binding mode. The binding sites and groups for 4-octylphenol and ctDNA interaction were identified by molecular docking. Gel electrophoresis found that 4-octylphenol at high concentrations caused DNA cleavage. Above findings may lay a theoretical foundation for understanding the toxicity mechanism of 4-octylphenol.
Collapse
Affiliation(s)
- Na Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Ying Zhang
- Division of Accounting, Nanchang University, Nanchang 330047, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Department of Biomedicine, New Zealand Institute of Natural Medicine Research, Auckland 2104, New Zealand
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| |
Collapse
|
25
|
Guo H, Xie J, Liao T, Tuo X. Exploring the binding mode of donepezil with calf thymus DNA using spectroscopic and molecular docking methods. LUMINESCENCE 2020; 36:35-44. [PMID: 32614132 DOI: 10.1002/bio.3911] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 06/18/2020] [Accepted: 06/30/2020] [Indexed: 01/21/2023]
Abstract
Donepezil (DNP) is one of approved drugs to treat Alzheimer's disease (AD). However, the potential effect of DNP on DNA is still unclear. Therefore, the interaction of DNP with calf thymus DNA (DNA) was studied in vitro using spectroscopic and molecular docking methods. Steady-state and transient fluorescence experiments showed that there was a clear binding interaction between DNP and DNA, resulting from DNP fluorescence being quenched using DNA. DNP and DNA have one binding site between them, and the binding constant (Kb ) was 0.78 × 104 L·mol-1 at 298 K. In this binding process, hydrophobic force was the main interaction force, because enthalpy change (ΔH) and entropy change (ΔS) of DNP-DNA were 67.92 kJ·mol-1 and 302.96 J·mol-1 ·K-1 , respectively. DNP bound to DNA in a groove-binding mode, which was verified using a competition displacement study and other typical spectroscopic methods. Fourier transform infrared (FTIR) spectrum results showed that DNP interacted with guanine (G) and cytosine (C) bases of DNA. The molecular docking results further supported the results of spectroscopic experiments, and suggested that both Pi-Sigma force and Pi-Alkyl force were the major hydrophobic force functioning between DNP and DNA.
Collapse
Affiliation(s)
- Hui Guo
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Jiawen Xie
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| | - Tancong Liao
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi, China
| | - Xun Tuo
- College of Chemistry, Nanchang University, Nanchang, Jiangxi, China
| |
Collapse
|
26
|
Shahabadi N, Moshtkoob A. In vitro interaction of nucleoside reverse transcriptase inhibitor, didanosine with calf-thymus DNA: Insights from spectroscopic studies. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2020; 39:1122-1133. [PMID: 32643522 DOI: 10.1080/15257770.2020.1780435] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Many antivirals interact with DNA and alter their expression profile. Thus, it is necessary to understand the binding mode. Didanosine, a nucleoside reverse transcriptase inhibitor, is used to treat HIV infection in patients with or without acquired immunodeficiency syndrome. Understanding the mechanism of interaction of this nucleoside reverse transcriptase inhibitor with DNA can prove useful in the development of a rational drug designing system. In vitro studies (UV-vis, fluorescence, and viscometry techniques) under physiological conditions (Tris-HCl buffer solutions, pH 7.4) show that didanosine drug interacts with calf-thymus DNA (ct-DNA) via partial intercalative binding mode. UV-visible spectroscopy confirmed the formation didanosine-DNA complex with a binding strength of about 1.5 × 105 M-1 thus indicating their biological worth. Dye displace experiments and viscometry confirmed that didanosine partially intercalates toward DNA molecules. Negative value of Gibb's-free energy change revealed that the process is spontaneous. The thermodynamic parameters such as enthalpy change (ΔH) and entropy change (ΔS) showed that the acting forces between didanosine and ct-DNA mainly included hydrophobic interactions.
Collapse
Affiliation(s)
- Nahid Shahabadi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran.,Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ayda Moshtkoob
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
| |
Collapse
|
27
|
Kheirdoosh F, Pazhavand M, Sariaslani M, Moghadam NH, Salehzadeh S. Multi-spectroscopic and molecular docking studies on the interaction of neotame with calf thymus DNA. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2020; 39:699-714. [PMID: 32126880 DOI: 10.1080/15257770.2019.1680999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
In this paper, we have studied the in vitro binding of neotame (NTM), an artificial sweetener, with native calf thymus DNA using different methods including spectrophotometric, spectrofluorometric, competition experiment, circular dichroism (CD), and viscosimetric techniques. From the spectrophotometric studies, the binding constant (Kb) of NTM-DNA was calculated to be 2 × 103 M-1. The quenching of the intrinsic fluorescence of NTM in the presence of DNA at different temperatures was also used to calculate binding constants (Kb) as well as corresponding number of binding sites (n). Moreover, the obtained results indicated that the quenching mechanism involves static quenching. By comparing the competitive fluorimetric studies with Hoechst 33258, as a known groove probe, and methylene blue, as a known intercalation probe, and iodide quenching experiments it was revealed that NTM strongly binds in the grooves of the DNA helix, which was further confirmed by CD and viscosimetric studies. In addition, a molecular docking method was employed to further investigate the binding interactions between NTM and DNA, and confirm the obtained results.
Collapse
Affiliation(s)
- Fahimeh Kheirdoosh
- Department of Applied Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Islamic Republic of Iran
| | - Mahsa Pazhavand
- Department of Applied Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Islamic Republic of Iran
| | - Mahya Sariaslani
- School of paramedical, Kermanshah University of Medical Science, Kermanshah, Iran
| | | | | |
Collapse
|
28
|
Wang R, Li N, Hu X, Pan J, Zhang G, Zeng X, Gong D. Characterizing the binding of tert-butylhydroquinone and its oxidation product tert-butylquinone with calf thymus DNA in vitro. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
29
|
A facile & convenient route for the stereoselective synthesis of Z- isoxazol-5(4H)-ones derivatives catalysed by sodium acetate: Synthesis, multispectroscopic properties, crystal structure with DFT calculations, DNA-binding studies and molecular docking studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127067] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
30
|
Zhao L, Zhao X, Ma Y, Zhang Y, Wang D. DNA Binding Characteristics and Protective Effects of Yellow Pigment from Freshly Cut Yam ( Dioscorea opposita). Molecules 2020; 25:E175. [PMID: 31906260 PMCID: PMC6983081 DOI: 10.3390/molecules25010175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/05/2019] [Accepted: 12/09/2019] [Indexed: 02/07/2023] Open
Abstract
Yam yellow pigments (YP) are natural pigments formed during the storage of freshly cut yam (Dioscorea opposita) under certain conditions. The interaction of YP with calf thymus DNA (ctDNA) and its protective effect against DNA oxidative damage were investigated using multiple spectroscopic techniques, competitive binding experiments, viscosity measurements, and gel electrophoresis. Results showed that YP participated in intercalative binding with ctDNA. YP exhibited a protective effect against hydroxyl-induced DNA damage, which was attributed to the high hydroxyl radical scavenging activity of YP. Our findings improve our understanding of the mechanism of interaction between YP and ctDNA, and provide a theoretical basis for the application of YP in the food and drug industry.
Collapse
Affiliation(s)
- Lei Zhao
- Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and rural affairs, Beijing 100097, China; (L.Z.); (Y.M.)
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiaoyan Zhao
- Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and rural affairs, Beijing 100097, China; (L.Z.); (Y.M.)
| | - Yue Ma
- Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and rural affairs, Beijing 100097, China; (L.Z.); (Y.M.)
| | - Yan Zhang
- Longda Food Group Company Limited, Shandong, Jinan 265231, China
| | - Dan Wang
- Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and rural affairs, Beijing 100097, China; (L.Z.); (Y.M.)
| |
Collapse
|
31
|
Interaction characterization of 5−hydroxymethyl−2−furaldehyde with human serum albumin: Binding characteristics, conformational change and mechanism. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111835] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
32
|
Mehran S, Rasmi Y, Karamdel HR, Hossinzadeh R, Gholinejad Z. Study of the Binding Interaction between Wortmannin and Calf Thymus DNA: Multispectroscopic and Molecular Docking Studies. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2019; 2019:4936351. [PMID: 31975999 PMCID: PMC6949734 DOI: 10.1155/2019/4936351] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/08/2019] [Accepted: 10/16/2019] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Wortmannin (WTN) is a steroid metabolite that inhibits phosphatidylinositol 3-kinase and other signaling pathways. Structurally, the WTN consists of a cyclopentanophenanthrene-like structure with several oxygen-rich moieties which have the potential to interact with deoxyribonucleic acid (DNA) molecules. METHODS We aim to evaluate the WTN and calf thymus DNA (ct-DNA) interaction with molecular docking using the AutoDock 4.2 software. UV and fluorescence spectroscopy and viscosity techniques were performed to confirm the in silico analysis. RESULTS Molecular docking showed that the WTN interacted with ct-DNA via hydrogen bonds at guanine-rich sequences. The number of hydrogen bonds between the WTN and DNA was 1-2 bonds (average 1.2) per WTN molecule. The in silico binding constant was 2 × 103 M-1. UV spectroscopy showed that the WTN induced a hyperchromic feature without wavelength shifting. The WTN and DNA interaction led to quenching of DNA-emitted fluorescence. The different concentrations of WTN had no effect on DNA viscosity. Taken together, our results demonstrated WTN interacts with DNA in the nonintercalating mode, which is considered as a new mechanism of action. CONCLUSION These results suggest that the WTN may exert its biological effects, at least in part, via interaction with DNA.
Collapse
Affiliation(s)
- Shiva Mehran
- Department of Biology, Higher Education Institute of Rabe-Rashidi, Tabriz, Iran
| | - Yousef Rasmi
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Science, Urmia, Iran
| | - Hamid Reza Karamdel
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Science, Urmia, Iran
| | - Ramin Hossinzadeh
- Department of Microbiology, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Zafar Gholinejad
- Department of Medical Laboratory Science, Urmia Branch, Islamic Azad University, Urmia, Iran
| |
Collapse
|
33
|
Xu L, Zhao J, Liu Z, Wang Z, Yu K, Xing B. Cleavage and transformation inhibition of extracellular antibiotic resistance genes by graphene oxides with different lateral sizes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 695:133932. [PMID: 31756848 DOI: 10.1016/j.scitotenv.2019.133932] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 08/13/2019] [Accepted: 08/14/2019] [Indexed: 06/10/2023]
Abstract
Due to excessive consumption of antibiotics, antibiotic resistance genes (ARGs) become a ubiquitous pollutant in aquatic environments. Graphene oxide (GO), an emerging 2D nanomaterial, was used for potential control of ARG contamination in the present work. We systematically investigated the interaction of GOs with Kanamycin resistance gene (aphA)-containing plasmid DNA, and related the inhibition of ARG transformation by GOs. Four GOs with different lateral sizes (1.0, 0.60, 0.17, and 0.08 μm2) were prepared, and defined as GO1.0, GO0.60, GO0.17 and GO0.08. It is found that all the four GOs could effectively intercalate into plasmid DNA, and the intercalation abilities followed the order: GO0.08 > GO0.17 > GO0.60 > GO1.0. Based on circular dichroism (CD) spectrum analysis, all GOs disturbed the base stacking mode and double helix structure of DNA, which is positively related to the intercalation activities of GOs. For GO0.08 at 25 μg/mL, the supercoiled plasmid DNA was partially cleaved, and the nicked and linear structures were observed based on agarose gel electrophoresis analysis. Moreover, the amplification and transformation of aphA gene were both inhibited due to GO-plasmid DNA interactions, and the inhibition was stronger with increasing GO concentrations and smaller lateral sizes. The inhibition of aphA transformation after GO0.08 (25 μg/mL) exposure achieved 50%. The size-dependent interaction of GOs with ARGs-containing plasmid DNA will be useful for guiding the environmental applications of GOs in reducing extracellular ARG transformation.
Collapse
Affiliation(s)
- Lina Xu
- Institute of Environmental Processes and Pollution Control, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China; Institute of Coastal Environmental Pollution Control, Ministry of Education Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China
| | - Jian Zhao
- Institute of Coastal Environmental Pollution Control, Ministry of Education Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Zhuomiao Liu
- Institute of Coastal Environmental Pollution Control, Ministry of Education Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China
| | - Zhenyu Wang
- Institute of Environmental Processes and Pollution Control, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
| | - Kaiqiang Yu
- Institute of Coastal Environmental Pollution Control, Ministry of Education Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA.
| |
Collapse
|
34
|
Multi-target antibacterial mechanism of eugenol and its combined inactivation with pulsed electric fields in a hurdle strategy on Escherichia coli. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.106742] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
35
|
Hu Y, Xie M, Wu X. Interaction studies of sodium cyclamate with DNA revealed by spectroscopy methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 220:117085. [PMID: 31146213 DOI: 10.1016/j.saa.2019.04.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/22/2019] [Accepted: 04/27/2019] [Indexed: 06/09/2023]
Abstract
The interaction between sodium cyclamate (SC) and calf thymus DNA in simulated physiological buffer (pH 7.4) using ethidium bromide (EB) as fluorescence probe was investigated by UV-vis spectrometry (UV), fluorescence, resonance light scattering (RLS) and Fourier transform infrared (FT-IR) spectroscopy, along with DNA melting studies and cyclic voltammetric (CV) measurements. The results indicate that SC can not only bind into the minor groove of DNA, but also intercalate into the DNA Base pairs. Based on UV data, the binding constant K and binding sites n of the formed DNA/SC complex were estimated to be 2.83 × 103 mol/L and 2.0, respectively. Fluorescence results demonstrate that the quenching of DNA/EB induced by SC can mainly be attributed to static procedure. The melting studies and CV analysis further confirm that the interaction mechanism between the SC and DNA is similar to that of DNA intercalator.The results of FT-IR spectra show that a specific interaction mainly exist between SC and adenine and guanine bases of DNA, which resulting in potential damage due to some change in the information structure. The DNA saturation binding value estimated to be 1.67 based on the RLS data also indicated that SC may cause damage of DNA.
Collapse
Affiliation(s)
- Yong Hu
- School of Food Science, Guangdong Pharmaceutical University, Zhong Shan 528458, PR China.
| | - Meiyi Xie
- School of Food Science, Guangdong Pharmaceutical University, Zhong Shan 528458, PR China
| | - Xiaoyong Wu
- School of Food Science, Guangdong Pharmaceutical University, Zhong Shan 528458, PR China
| |
Collapse
|
36
|
Mukherjee A, Ghosh S, Pal M, Singh B. Deciphering the effective sequestration of DNA bounded bioactive small molecule Safranin-O by non-ionic surfactant TX-114 and diminution its cytotoxicity. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
37
|
Zhang G, Zhou Z, Xu J, Liao Y, Hu X. Groove binding between ferulic acid and calf thymus DNA: spectroscopic methodology combined with chemometrics and molecular docking studies. J Biomol Struct Dyn 2019; 38:2029-2037. [PMID: 31157597 DOI: 10.1080/07391102.2019.1624194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Ferulic acid (FA), a dietary phenolic acid compound, is proved to possess numerous biological activities. Hence, this study was devoted to explore the interaction between FA and calf thymus DNA (ctDNA) by UV - vis absorption, fluorescence, circular dichroism (CD) spectroscopy combined with multivariate curve resolution-alternating least-squares (MCR - ALS) and molecular docking studies. The concentration curves and the pure spectra of compositions (FA, ctDNA and FA - ctDNA complex) were obtained by MCR - ALS approach to verify and monitor the interaction of FA with ctDNA. The groove binding mode between FA and ctDNA was confirmed by the results of melting analysis, viscosity measurements, single-stranded DNA experiments, and competitive studies. The binding constant of FA - ctDNA complex was 4.87 × 104 L mol-1 at 298 K. The values of enthalpy (ΔH°) and entropy (ΔS°) changes in the interaction were -16.24 kJ mol-1 and 35.02 J mol-1 K-1, respectively, indicating that the main binding forces were hydrogen bonds and hydrophobic interactions. The result of CD spectra suggested that a decrease in right-handed helicity of ctDNA was induced by FA and the DNA conformational transition from the B-form to the A-form. The results of docking indicated that FA binding with ctDNA in the minor groove. These findings may be conducive to understand the interaction mechanism of FA with ctDNA and the pharmacological effects of FA. Communicated by Ramaswamy H. Sarma[Formula: see text].
Collapse
Affiliation(s)
- Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Zhisheng Zhou
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Jianjian Xu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Yijing Liao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| |
Collapse
|
38
|
Wang R, Liu Y, Hu X, Pan J, Gong D, Zhang G. New insights into the binding mechanism between osthole and β-lactoglobulin: Spectroscopic, chemometrics and docking studies. Food Res Int 2019; 120:226-234. [DOI: 10.1016/j.foodres.2019.02.042] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 02/20/2019] [Accepted: 02/21/2019] [Indexed: 12/21/2022]
|
39
|
Adibi H, Abdolmaleki S, Shahabadi N, Golabi A, Mahdavi M, Zendehcheshm S, Ghadermazi M, Ansari M, Amiri Rudbari H, Bruno G, Nemati A. Investigation of crystallographic structure, in vitro cytotoxicity and DNA interaction of two La(III) and Ce(IV) complexes containing dipicolinic acid and 4-dimethylaminopyridine. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.02.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
40
|
Wang R, Hu X, Pan J, Zhang G, Gong D. Interaction of isoeugenol with calf thymus DNA and its protective effect on DNA oxidative damage. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
41
|
Zhou Z, Hu X, Zhang G, Wang R, Gong D. Exploring the binding interaction of Maillard reaction by-product 5-hydroxymethyl-2-furaldehyde with calf thymus DNA. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:3192-3202. [PMID: 30548611 DOI: 10.1002/jsfa.9536] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/29/2018] [Accepted: 12/10/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND 5-Hydroxymethyl-2-furaldehyde (5-HMF), a by-product of the Maillard reaction, usually present in fried and baked food, may cause potential harm to the human body. Here, the interaction between 5-HMF and calf thymus DNA (ctDNA) under physiological buffer (pH 7.4) was studied using multi-spectroscopic methods combined with multivariate curve resolution-alternating least squares (MCR-ALS) chemometrics and molecular simulation techniques. RESULTS The concentration profiles and pure spectra of the three components (5-HMF, ctDNA and 5-HMF-ctDNA complex) were extracted from highly overlapping spectra using MCR-ALS analysis, which verified the formation of 5-HMF-ctDNA complex. The binding constant being of the order of 103 L mol-1 at four temperatures (292, 298, 304 and 310 K) indicated a weak affinity in the binding of 5-HMF to ctDNA. The binding interaction was mainly driven by hydrogen bonds and van der Waals forces. Viscosity analysis, melting assay, ionic strength effect and competitive fluorescence studies ascertained that 5-HMF bound to ctDNA through groove binding, and it tended to bind to guanine-cytosine rich region of ctDNA which was characterized using Fourier transform infrared spectra and molecular docking. Circular dichroism spectral analysis and DNA cleavage assays indicated that the ctDNA conformation was altered from B to A form and 5-HMF caused DNA damage at higher concentration. CONCLUSIONS The results suggested that 5-HMF bound to ctDNA through groove binding and caused DNA damage. This research may contribute to understand the binding mechanism of 5-HMF to ctDNA and to the assessment of the toxicological effect of 5-HMF in biological processes. © 2018 Society of Chemical Industry.
Collapse
Affiliation(s)
- Zhisheng Zhou
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Rui Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
- Department of Biomedicine, New Zealand Institute of Natural Medicine Research, Auckland, New Zealand
| |
Collapse
|
42
|
Mansourian M, Mahnam K, Rajabi HR, Roushani M, Doustimotlagh AH. Exploring the binding mechanism of saccharin and sodium saccharin to promoter of human p53 gene by theoretical and experimental methods. J Biomol Struct Dyn 2019; 38:548-564. [PMID: 30856053 DOI: 10.1080/07391102.2019.1582438] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In the past few decades, extensive discussions have been on the impact of artificial sweeteners on the risk of cancer. The present study aimed to evaluate the interaction of saccharin (SA) and sodium saccharin (SSA) with the promoter of the human p53 gene. The binding ability was assessed using the spectroscopic technique, molecular docking and molecular dynamics (MD) simulation methods. Free energy of binding has been calculated using Molecular Mechanics/Poisson-Boltzmann Surface Area (MM/PBSA) method. Fluorescence spectra of mentioned gene with concentration profiles of SA and SSA were obtained in a physiological condition. A gradual increase without any significant spectral shift in the fluorescence intensity of around 350 nm was evident, indicating the presence of an interaction between both compounds and gene. The docking results showed that both compounds were susceptible to bind to 5'-DG56DG57-3' nucleotide sequence of gene. Furthermore, the MD simulation demonstrated that the binding positions for SA and SSA were 5'-A1T3T4-3' and 5'-G44T45-3' sequences of gene, respectively. The binding of these sweeteners to gene made significant conformational changes to the DNA structure. Hydrogen and hydrophobic interactions are the major forces in complexes stability. Through the groove binding mode, the non-interactive DNA-binding nature of SSA and SA has been demonstrated by the results of spectrofluorometric and molecular modeling. This study could provide valuable insight into the binding mechanism of SA and its salt with p53 gene promoter as macromolecule at the molecular level in atomistic details. This work can contribute to the possibility of the potential hazard of carcinogenicity of this sweetener and to design and apply new and safer artificial sweeteners. AbbreviationsSASaccharinSSASodium SaccharinPp53gpromoter of human p53 geneMDMolecular dynamicsRMSDRoot-mean-square deviationRMSFRoot-mean-square fluctuationRgRadius of GyrationSASASolvent-Accessible Surface AreaADIAcceptable daily intakeMM/PBSAMolecular Mechanics/Poisson-Boltzmann Surface AreaCommunicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Mahboubeh Mansourian
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran.,Department of Pharmacology, Faculty of Medicine, Yasuj University of Medical Sciences, Yasuj, I.R. Iran
| | - Karim Mahnam
- Faculty of Science, Department of Biology, Shahrekord University, Shahrekord, Iran.,Nanotechnology Research Center, Shahrekord University, Shahrekord, Iran
| | | | | | | |
Collapse
|
43
|
Biswas S, Samui S, Biswas S, Das AK, Naskar J. Molecular recognition of double-stranded DNA by a synthetic, homoaromatic tripeptide (YYY): The spectroscopic and calorimetric study. Int J Biol Macromol 2019; 123:221-227. [DOI: 10.1016/j.ijbiomac.2018.11.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/02/2018] [Accepted: 11/02/2018] [Indexed: 01/02/2023]
|
44
|
Wang R, Hu X, Pan J, Gong D, Zhang G. Interaction between quinoline yellow and human serum albumin: spectroscopic, chemometric and molecular docking studies. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:73-82. [PMID: 29797408 DOI: 10.1002/jsfa.9144] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 05/18/2018] [Accepted: 05/20/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Quinoline yellow (QY), a synthetic colourant widely used in the food industry, has caused extensive concerns because of its potentially harmful effects on human health. In the present work, the interactions between QY and human serum albumin (HSA) were characterized by multiple spectroscopic methods, a chemometric algorithm, and molecular modelling studies. RESULTS The concentration profiles and pure spectra obtained for the components (QY, HSA and QY-HSA complex) from analyses of the expanded UV-visible absorption data matrices by multivariate curve resolution alternating least squares confirmed the QY-HSA interaction process. QY quenched the fluorescence of HSA through formation of a QY-HSA complex that was stabilized by moderate affinity. Hydrophobic forces and hydrogen bonding play major roles in the binding of QY to HSA. Site-specific marker-induced displacement results suggest that QY binds to subdomain IIA of HSA. This was corroborated by the molecular docking results. Decreases in HSA surface hydrophobicity and free sulfhydryl group content indicate that QY causes a contraction of the peptide strand in HSA, hiding the hydrophobic patches of the protein. Analyses by UV-visible absorption, circular dichroism, and three-dimensional fluorescence spectroscopy found that QY causes microenvironmental perturbations around the fluorophores and secondary structure changes in HSA. CONCLUSION This work shows that QY binds to HSA, affecting its structural and functional properties, and provides new insights into the binding mechanism and a comprehensive understanding of the toxicity of QY to biological processes. © 2018 Society of Chemical Industry.
Collapse
Affiliation(s)
- Rui Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
- Department of Biomedicine, New Zealand Institute of Natural Medicine Research, Auckland, New Zealand
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| |
Collapse
|
45
|
Peng D, Huang M, Xiao Y, Zhang Y, Lei L, Zhu J. Highly-selective recognition of latent fingermarks by La-sensitized Ce nanocomposites via electrostatic binding. Chem Commun (Camb) 2019; 55:10579-10582. [DOI: 10.1039/c9cc04257a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A series of binuclear (Ce,La) nanocomposite fluorescent powders was elaborately designed for highly-selective recognition of latent fingermarks, which were proved to combine with fingermark residues electrostatically without any damage to touch-DNA.
Collapse
Affiliation(s)
- Di Peng
- Chongqing Institutes of Higher Education Key Forensic Science Laboratory
- Criminal Investigation College
- Southwest University of Political Science and Law
- Chongqing
- P. R. China
| | - Mengjun Huang
- Chongqing Institutes of Higher Education Key Forensic Science Laboratory
- Criminal Investigation College
- Southwest University of Political Science and Law
- Chongqing
- P. R. China
| | - Yaruo Xiao
- Chongqing Institutes of Higher Education Key Forensic Science Laboratory
- Criminal Investigation College
- Southwest University of Political Science and Law
- Chongqing
- P. R. China
| | - Yuyan Zhang
- Chongqing Institutes of Higher Education Key Forensic Science Laboratory
- Criminal Investigation College
- Southwest University of Political Science and Law
- Chongqing
- P. R. China
| | - Li Lei
- College of Materials and Chemical Engineering
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| | - Jiang Zhu
- College of Materials and Chemical Engineering
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| |
Collapse
|
46
|
Zhang H, Sun S, Wang Y, Fei Z, Cao J. Binding mechanism of five typical sweeteners with bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 205:40-47. [PMID: 30015031 DOI: 10.1016/j.saa.2018.07.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/04/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
In this work, the interactions between bovine serum albumin (BSA) and five sweeteners including aspartame (APM), acesulfame (AK), sucralose (TGS), sodium cyclamate (SC), and rebaudioside-A (REB-A) have been studied by multispectroscopic techniques, and molecular simulation in order to provide much useful information for the application of new and safer artificial sweeteners. Fluorescence quenching assays indicated that the formation of complexes between sweeteners and BSA mainly induced the fluorescence quenching of protein and the binding site number were about 1 indicting that there is one mainly binding site of APM, AK, TGS, SC, or REB-A in domain of BSA with relatively weak interactions. Molecular modeling results indicated that hydrogen bonding interactions were the mainly binding forces of sweeteners with BSA. Circular dichroism spectra indicated that APM and REB-A obviously induced the secondary structure changes of BSA. The presence of APM increased the fraction of α-Helix of BSA from 65.4% to 73.8%, while the presence of REB-A resulted in decreasing the fraction of α-helix of BSA from 65.4% to 51.2%. The melting temperature studies showed that these five sweeteners except REB-A act as stabilizers to increase the thermal stability of BSA during the thermal denaturation process. In addition, AK, TGS, and SC obviously increased the esterase-like activity of BSA, and such loss of activity of BSA induced by APM and REB-A.
Collapse
Affiliation(s)
- Hongmei Zhang
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University, Yancheng City, Jiangsu Province 224051, People's Republic of China; School of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China
| | - Shixin Sun
- School of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China
| | - Yanqing Wang
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University, Yancheng City, Jiangsu Province 224051, People's Republic of China; School of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China.
| | - Zhenghao Fei
- School of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China
| | - Jian Cao
- School of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China.
| |
Collapse
|
47
|
Feng J, Qi H, Sun X, Feng S, Liu Z, Song Y, Qiao X. Synthesis of Novel Pyrazole Derivatives as Promising DNA-Binding Agents and Evaluation of Antitumor and Antitopoisomerases I/II Activities. Chem Pharm Bull (Tokyo) 2018; 66:1065-1071. [DOI: 10.1248/cpb.c18-00546] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Jiajia Feng
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University
| | - Hui Qi
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University
| | - Xiaoyang Sun
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University
| | - Siran Feng
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University
| | - Zhenming Liu
- Drug Design Center, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University
| | - Yali Song
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University
| | - Xiaoqiang Qiao
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University
| |
Collapse
|
48
|
Lucchetti N, Tkacheva A, Fantasia S, Muñiz K. Radical C−H-Amination of Heteroarenes using Dual Initiation by Visible Light and Iodine. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800677] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Nicola Lucchetti
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; 16 Avgda. Països Catalans 43007 Tarragona Spain
| | - Anastasia Tkacheva
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; 16 Avgda. Països Catalans 43007 Tarragona Spain
| | - Serena Fantasia
- F. Hoffmann-La Roche Ltd. Process Chemistry and Catalysis; Grenzacherstrasse 124 4070 Basel Switzerland
| | - Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; 16 Avgda. Països Catalans 43007 Tarragona Spain
- ICREA; Pg. Lluís Companys 23 08010 Barcelona Spain
| |
Collapse
|
49
|
Al Qumaizi KI, Anwer R, Ahmad N, Alosaimi SM, Fatma T. Study on the interaction of antidiabetic drug Pioglitazone with calf thymus DNA using spectroscopic techniques. J Mol Recognit 2018; 31:e2735. [DOI: 10.1002/jmr.2735] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/22/2018] [Accepted: 05/23/2018] [Indexed: 01/03/2023]
Affiliation(s)
- Khalid I. Al Qumaizi
- Department of Family Medicine, College of Medicine; Al Imam Mohammad Ibn Saud Islamic University (IMSIU); Riyadh Kingdom of Saudi Arabia
| | - Razique Anwer
- Department of Biomedical Sciences, College of Medicine; Al Imam Mohammad Ibn Saud Islamic University (IMSIU); Riyadh Kingdom of Saudi Arabia
| | - Nazia Ahmad
- Department of Biosciences; Jamia Millia Islamia (Central University); New Delhi India
| | - Saleh M. Alosaimi
- Department of Family Medicine, College of Medicine; King Saud bin Abdulaziz University for Health Sciences (KSAU-HS); Riyadh Kingdom of Saudi Arabia
| | - Tasneem Fatma
- Department of Biosciences; Jamia Millia Islamia (Central University); New Delhi India
| |
Collapse
|
50
|
Hebenbrock M, González-Abradelo D, Strassert CA, Müller J. DNA Groove-binding Ability of Luminescent Platinum(II) Complexes based on a Family of Tridentate N^N^C Ligands Bearing Differently Substituted Alkyl Tethers. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Marian Hebenbrock
- Institut für Anorganische und Analytische Chemie; Westfälische Wilhelms-Universität Münster; Corrensstraße 30 48149 Münster Germany
| | - Darío González-Abradelo
- CeNTech and Physikalisches Institut; Westfälische Wilhelms-Universität Münster; Heisenbergstraße 11 48149 Münster Germany
| | - Cristian A. Strassert
- CeNTech and Physikalisches Institut; Westfälische Wilhelms-Universität Münster; Heisenbergstraße 11 48149 Münster Germany
| | - Jens Müller
- Institut für Anorganische und Analytische Chemie; Westfälische Wilhelms-Universität Münster; Corrensstraße 30 48149 Münster Germany
| |
Collapse
|