1
|
Iqbal Z, Fauzia Farheen Zofair S, Ahmed S, Sharma M, Younus H, Mahmood R. Interaction of plant phenol vanillin with human hemoglobin: A spectroscopic and molecular docking study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 322:124831. [PMID: 39024790 DOI: 10.1016/j.saa.2024.124831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 07/12/2024] [Accepted: 07/13/2024] [Indexed: 07/20/2024]
Abstract
Vanillin is a phenolic aldehyde widely used as a flavouring agent in the food industry. Vanillin has many health benefits and has gained attention in pharmacological industries also, due to its antioxidant properties and non-toxic nature. The interaction of vanillin with human hemoglobin (hHb), an abundant tetrameric heme protein, was investigated by several spectroscopic techniques and molecular modeling methods. UV-visible spectra showed that the binding of vanillin to hHb induces structural changes due to alterations in the micro-environment of hHb. Vanillin quenches the intrinsic fluorescence of hHb by the dynamic mechanism, which was confirmed by both temperature dependent and time resolved fluorescence studies. Vanillin binds spontaneously to hHb at a single site and the binding is stabilized by hydrogen bonds and hydrophobic interactions. The circular dichroism spectra showed that the binding of vanillin altered the secondary structure of hHb due to change in its alpha-helical content. Molecular docking identified the amino acids of hHb involved in binding to vanillin and also that the free energy change of the binding reaction is -5.5 kcal/mol. Thus, our results indicate that vanillin binds spontaneously to hHb at a single site and alters its secondary structure. This will help in understanding the potential use of vanillin and related antioxidants as therapeutic agents in various hematological disorders.
Collapse
Affiliation(s)
- Zarmin Iqbal
- Department of Biochemistry, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Syeda Fauzia Farheen Zofair
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Shahbaz Ahmed
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Monika Sharma
- Department of Biochemistry, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Hina Younus
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Riaz Mahmood
- Department of Biochemistry, Aligarh Muslim University, Aligarh 202002, UP, India.
| |
Collapse
|
2
|
Garg M, Sharma D, Kaur G, Rawat J, Goyal B, Kumar S, Kumar R. Factor defining the effects of tetraalkylammonium chloride on stability, folding, and dynamics of horse cytochrome c. Int J Biol Macromol 2024; 276:133713. [PMID: 38986993 DOI: 10.1016/j.ijbiomac.2024.133713] [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: 05/06/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/12/2024]
Abstract
This article describes the molecular mechanism by which tetraalkylammonium chloride ([R4N]Cl: R- = methyl (Me), ethyl (Et), propyl (Pr),butyl (Bu)) modulates the stability, folding, and dynamics of cytochrome c (Cyt c). Analysis of [R4N]Cl effects on thermal/chemical denaturations, millisecond refolding/unfolding kinetics, and slow CO-association kinetics of Cyt c without and with denaturant providing some significant results: (i) [R4N]Cl decreasing the unfolding free energy estimated by thermodynamic and kinetic analysis of thermal/chemical denaturation curves and kinetic chevrons (Log kobs-[GdmCl]) of Cyt c, respectively (ii) hydrophobicity of R-group of [R4N]Cl, preferential inclusion of [R4N]Cl at the protein surface, and destabilizing enthalpic attractive interactions of [Me4N]Cl and steric entropic interactions of [Et4N]Cl,[Pr4N]Cl and [Bu4N]Cl with protein contribute to [R4N]Cl-induced decrease thermodynamic stability of Cyt c (iii) [R4N]Cl exhibits an additive effect with denaturant to decrease thermodynamic stability and refolding rates of Cyt c (iv) low concentrations of [R4N]Cl (≤ 0.5 M) constrain the motional dynamics while the higher concentrations (>0.75 M [R4N]Cl) enhance the structural-fluctuations that denture protein (v) hydrophobicity of R-group of [R4N]Cl alters the [denaturant]-dependent conformational stability, refolding-unfolding kinetics, and CO-association kinetics of Cyt c. Furthermore, the MD simulations depicted that the addition of 1.0 M of [R4N]Cl increased the conformational fluctuations in Cyt c leading to decreased structural stability in the order [Me4N]Cl < [Et4N]Cl < [Pr4N]Cl < [Bu4N]Cl consistent with the experimental results.
Collapse
Affiliation(s)
- Mansi Garg
- Department of Chemistry, Central University of Punjab, Bathinda 151001, India
| | - Deepak Sharma
- Council of Scientific and Industrial Research-Institute of Microbial Technology, Sector 39A, Academy of Scientific & Innovative Research, Chandigarh, India
| | - Gurmeet Kaur
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Jayanti Rawat
- Department of Chemistry, Central University of Punjab, Bathinda 151001, India
| | - Bhupesh Goyal
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Sumit Kumar
- Department of Chemistry, Central University of Punjab, Bathinda 151001, India
| | - Rajesh Kumar
- Department of Chemistry, Central University of Punjab, Bathinda 151001, India.
| |
Collapse
|
3
|
Ghorai S, Jana B, Ganguly J. Network-supported and adaptable binding efficacy for flexible and multi-functionalized chitosan/phenolic carbaldehyde hydrogels. Int J Biol Macromol 2023; 253:127004. [PMID: 37734526 DOI: 10.1016/j.ijbiomac.2023.127004] [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: 06/02/2023] [Revised: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 09/23/2023]
Abstract
A thoughtful strategy has been intended to control the hydrogel networking to assess the binding efficacy of multifunctional hydrogel. The processing of two distinct network-supported hydrogels has portrayed to express the operating interactions involved during co-existence with solvents, small molecules, biomolecules, etc. Herein, chitosan has separately functionalized in semisynthetic approaches with 4-hydroxyisopthalaldehyde (ChDA) and 2-hydroxybenzene-1,3,5-tricarbaldehyde (ChTA) to construct different gel networks. The disposition of gel networks ChDA adapts more flexible chain or spine, whereas ChTA possesses restricted movements within gel networks. The gel networks of hydrogels have a significant role in their distinct physical activities. Their gel-bonding elucidations have performed to establish the variation in mechanical, swelling photophysical properties, etc. Remarkable self-fluorescence behaviors are used as a tool for binding study. Distinctive gel networks and their flexibility have investigated against self-fluorescence, UV-Vis, and FTIR against small molecule, Boron trifluoride and biomolecule, and Bovine serum albumin. Hydrogel/BF3 shows variation in fluorescence due to the disposition of gel networks. Hydrogel/BSA quenching of fluorescence at three different temperatures provides the binding constant and Stern-Volmer quenching constant. Theoretical DFT and docking studies successfully established the flexibility against binding study. The controlling of cross-linking or functionalization is very crucial for the development of hydrogel-mediated applications.
Collapse
Affiliation(s)
- Shubhankar Ghorai
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Howrah 711103, WB, India.
| | - Biswajit Jana
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Howrah 711103, WB, India.
| | - Jhuma Ganguly
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Howrah 711103, WB, India.
| |
Collapse
|
4
|
Azeem K, Ahmed M, Uddin A, Singh S, Patel R, Abid M. Comparative investigation on interaction between potent antimalarials and human serum albumin using multispectroscopic and computational approaches. LUMINESCENCE 2023; 38:2018-2033. [PMID: 37654050 DOI: 10.1002/bio.4590] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/22/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023]
Abstract
This study performed a comparative investigation to explore the interaction mechanisms between two potential antimalarial compounds, JMI 346 and JMI 105, and human serum albumin (HSA), a vital carrier protein responsible for maintaining important biological functions. Our aim was to assess the pharmacological efficiency of these compounds while comprehensively analyzing their impact on the dynamic behavior and overall stability of the protein. A comprehensive array of multispectroscopic techniques, including UV-Vis. spectroscopy, steady-state fluorescence analysis, synchronous fluorescence spectroscopy, three-dimensional fluorescence and circular dichroism spectroscopy, docking studies, and molecular dynamics simulations, were performed to probe the intricate details of the interaction between the compounds and HSA. Our results revealed that both JMI 346 and JMI 105 exhibited promising pharmacological effectiveness within the context of malaria therapy. However, JMI 346 was found to exhibit a significantly higher affinity and only minor altered impact on HSA, suggesting a more favorable interaction with the protein on the dynamic behavior and overall stability of the protein in comparison to JMI 105. Further studies can build on these results to optimize the drug-protein interaction and enable the development of more potent and targeted antimalarial treatments.
Collapse
Affiliation(s)
- Kashish Azeem
- Medicinal Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Mofieed Ahmed
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Amad Uddin
- Medicinal Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Shailja Singh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Rajan Patel
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Mohammad Abid
- Medicinal Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| |
Collapse
|
5
|
Sewariya S, Sehrawat H, Mishra N, Singh MB, Singh P, Kukreti S, Chandra R. Comparative assessment of 9-bromo noscapine ionic liquid and noscapine: Synthesis, in-vitro studies plus computational & biophysical evaluation with human hemoglobin. Int J Biol Macromol 2023; 247:125791. [PMID: 37442512 DOI: 10.1016/j.ijbiomac.2023.125791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/23/2023] [Accepted: 07/09/2023] [Indexed: 07/15/2023]
Abstract
Noscapine is a proficient anticancer drug active against wide variety of tumors including lung cancer. Over time, several noscapine analogues have been assessed to maximize the efficiency of the drug, amongst which 9-bromo noscapine remains one of the most potent analogues till date. In the present work, we have synthesized 9-bromo noscapine ionic liquid [9-Br-Nos]IBr2, an active pharmaceutical ingredient based ionic liquid (API-IL) to address the existing issues of solubility and targeted drug delivery in the parent alkaloid as well as the synthesized analogues. We have devised a novel two-step synthesis route (first-ever ionic to ionic bromination) to obtain the desired [9-Br-Nos]IBr2 which is advantageous to its organic analogue in terms of increased solubility, lesser reaction time and better yield. Furthermore, we have compared 9-bromo noscapine ionic liquid with noscapine based on its binding interaction with human hemoglobin (Hb) studied via computational along with spectroscopic studies, and bioactivity against non-small cell lung cancer. We inferred formation of a complex between [9-Br-Nos]IBr2 and Hb in the stoichiometric ratio of 1:1, similar to noscapine. At 298 K, [9-Br-Nos]IBr2-Hb binding was found to exhibit Kb and ∆G of 36,307 M-1 and -11.5 KJmol-1, respectively, as compared to 159 M-1 and -12.5 KJmol-1 during Noscapine-Hb binding. This indicates a more stronger and viable interaction between [9-Br-Nos]IBr2 and Hb than the parent compound. From computational studies, the observed higher stability of [9-Br-Nos]I and better binding affinity with Hb with a binding energy of -91.75 kcalmol-1 supported the experimental observations. In the same light, novel [9-Br-Nos]IBr2 was found to exhibit an IC50 = 95.02 ± 6.32 μM compared to IC50 = 128.82 ± 2.87 μM for noscapine on A549 (non-small lung cancer) cell line at 48 h. Also, the desired ionic liquid proved to be more cytotoxic inducing a mortality rate of 87 % relative to 66 % evoked by noscapine at concentrations of 200 μM after 72 h.
Collapse
Affiliation(s)
- Shubham Sewariya
- Department of Chemistry, University of Delhi, Delhi 110007, India; Maharaja Surajmal Brij University, Rajasthan - 321201, India
| | - Hitesh Sehrawat
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Nistha Mishra
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Madhur Babu Singh
- Atma Ram Sanatan Dharma College, University of Delhi, Delhi 110007, India
| | - Prashant Singh
- Atma Ram Sanatan Dharma College, University of Delhi, Delhi 110007, India
| | - Shrikant Kukreti
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Ramesh Chandra
- Department of Chemistry, University of Delhi, Delhi 110007, India; Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India; Institute of Nano Medical Sciences, University of Delhi, Delhi 110007, India; Maharaja Surajmal Brij University, Rajasthan - 321201, India.
| |
Collapse
|
6
|
Grabowska O, Samsonov SA, Chmurzyński L, Wyrzykowski D, Żamojć K. Investigation of hexacyanoferrate(II)/(III) charge-dependent interactions with bovine and human serum albumins. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 293:122505. [PMID: 36809739 DOI: 10.1016/j.saa.2023.122505] [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: 09/21/2022] [Revised: 01/21/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
In the present paper, the binding interactions of highly negative-charged ions, namely hexacyanoferrates(II/III), i.e. [Fe(CN)6]4- and [Fe(CN)6]3- with bovine and human serum albumins (BSA and HSA, respectively) have been studied for the first time in an aqueous solution (10 mM cacodylate buffer of pH 7.0) using steady-state fluorescence spectroscopy, isothermal titration calorimetry, and CD spectroscopy supported by molecular dynamics-based computational approaches. The Stern-Volmer equation as well as its modifications suggested that hexacyanoferrates(II/III) effectively quenched the intrinsic fluorescence of the albumins through a static mechanism. The proteins under study possess only one binding site on the surface capable of binding one mole of hexacyanoferrates(II/III) ions per one mole of albumin (HSA or BSA). The formation of albumin complexes is an enthalpy-driven process (|ΔHITC| > |TΔSITC|). The strength of the interactions depends mainly on the type of albumin, and changes as follows: BSA-K3[Fe(CN)6] ∼ BSA-K4[Fe(CN)6] > HSA-K3[Fe(CN)6] ∼ HSA-K4[Fe(CN)6]. Finally, potential binding sites of bovine and human serum albumins have been investigated and discussed based on a competitive fluorescence displacement assay (with warfarin and ibuprofen as site markers) and molecular dynamics simulations.
Collapse
Affiliation(s)
- Ola Grabowska
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Sergey A Samsonov
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Lech Chmurzyński
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Dariusz Wyrzykowski
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Krzysztof Żamojć
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| |
Collapse
|
7
|
Sepehri N, Valipour M, Parchizadeh E, Maghami P. Investigating the Protective Role of Biochaga Drug on Structural Changes of Bovine Serum Albumin in the Presence of Methyl tert-butyl Ether. Protein J 2023; 42:112-124. [PMID: 36905495 DOI: 10.1007/s10930-023-10102-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2023] [Indexed: 03/12/2023]
Abstract
BACKGROUND The health benefits of natural products have a long history. Chaga (Inonotus obliques) is used in traditional medicine and is an essential antioxidant for protecting the body from oxidants. Reactive oxygen species (ROS) are produced routinely due to metabolic processes. However, environmental pollution factors such as methyl tert-butyl ether (MTBE) can increase oxidative stress in the human body. MTBE is widely used as a fuel oxygenator that can harm health. The widespread use of MTBE has posed significant threats to the environment by polluting environmental resources, including groundwater. This compound can accumulate in the bloodstream by inhaling polluted air, with a strong affinity for blood proteins. The primary mechanism of MTBE's harmful effects is ROS production. The use of antioxidants may help reduce MTBE oxidation conditions. The present study proposes that biochaga, as an antioxidant, can reduce MTBE damage in the bovine serum albumin (BSA) structure. METHODS AND RESULTS This study investigated the role of different concentrations of biochaga in the structural change of BSA in the presence of MTBE by biophysical methods such as UV-Vis, fluorescence, FTIR spectroscopy, DPPH radical inhibition method, aggregation test, and molecular docking. Research at the molecular level is critical to investigate the structural change of proteins by MTBE and the protective effect of the ideal dose (2.5 µg/ml) of biochaga. CONCLUSION the results of spectroscopic examinations showed that the concentration of 2.5 µg/ml of biochaga has the least destructive effect on the structure of BSA in the presence and absence of MTBE, and it can play as an antioxidant.
Collapse
Affiliation(s)
- Niloofar Sepehri
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Masoumeh Valipour
- Department of Biology, Faculty of Basic Science, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Elmira Parchizadeh
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Parvaneh Maghami
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| |
Collapse
|
8
|
Laraoui H, Lanez E, Zegheb N, Adaika A, Lanez T, Benkhaled M. Anti‐Diabetic Activity of Flavonol Glucosides From
Fumana montana
Pomel: In vitro Analysis, In Silico Docking, ADMET Prediction, and Molecular Dynamics Simulations. ChemistrySelect 2023. [DOI: 10.1002/slct.202204512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Habiba Laraoui
- Faculty of Matter Sciences Department of chemistry LCCE Laboratory University of Batna 5000 Batna Algeria
- Faculty of Exact and Natural Sciences Department of Matter Sciences University of Biskra BP 145 RP 07000 Biskra Algeria
| | - Elhafnaoui Lanez
- Department of Biochemistry University of El Oued 39000 El Oued Algeria
- Chemistry Department VTRS Laboratory University of El Oued B.P.789 39000 El Oued Algeria
| | - Nadjiba Zegheb
- Chemistry Department VTRS Laboratory University of El Oued B.P.789 39000 El Oued Algeria
| | - Aicha Adaika
- Chemistry Department VTRS Laboratory University of El Oued B.P.789 39000 El Oued Algeria
| | - Touhami Lanez
- Chemistry Department VTRS Laboratory University of El Oued B.P.789 39000 El Oued Algeria
| | - Mohammed Benkhaled
- Faculty of Matter Sciences Department of chemistry LCCE Laboratory University of Batna 5000 Batna Algeria
| |
Collapse
|
9
|
Ionic liquids as protein stabilizers for biological and biomedical applications: A review. Biotechnol Adv 2022; 61:108055. [DOI: 10.1016/j.biotechadv.2022.108055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/13/2022] [Accepted: 10/23/2022] [Indexed: 11/22/2022]
|
10
|
Solution behavior of native and denatured beta lactoglobulin in presence of pyridinium based ionic liquids: A biophysical perspective of folding and refolding pattern of the protein. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
11
|
Azeem K, Ahmed M, Mohammad T, Uddin A, Shamsi A, Hassan MI, Singh S, Patel R, Abid M. A multi-spectroscopic and computational simulations study to delineate the interaction between antimalarial drug hydroxychloroquine and human serum albumin. J Biomol Struct Dyn 2022:1-17. [PMID: 35924780 DOI: 10.1080/07391102.2022.2107077] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Hydroxychloroquine (HCQ), a quinoline based medicine is commonly used to treat malaria and autoimmune diseases such as rheumatoid arthritis. Since, human serum albumin (HSA) serves as excipient for vaccines or therapeutic protein drugs, it is important to understand the effect of HCQ on the structural stability of HSA. In this study, the binding mechanism of HCQ and their effect on stability of HSA have been studied using various spectroscopic techniques and molecular dynamic simulation. The UV-VIS results confirmed the strong binding of HCQ with HSA. The calculated thermodynamics parameters confirmed that binding is spontaneous in nature and van der Waals forces and hydrogen bonding are involved in the binding system which is also confirmed by molecular docking results. The steady-state fluorescence confirms the static quenching mechanism in the interaction system, which was further validated by time-resolved fluorescence. The synchronous fluorescence confirmed the more abrupt binding of HCQ with tryptophan residue of HSA compared to Tyr residue of HSA. Isothermal titration calorimetry (ITC) was done to validate the thermodynamics parameters of HSA-HCQ complex in one experiment, supporting the values obtained from the spectroscopic techniques. The circular dichroism (CD) demonstrated that the HCQ affected the secondary structure of HSA protein by reducing their α-helical content. The docking and molecular dynamic simulation results further helped in understanding the effect of HCQ on conformational changes of HSA. Overall, present work defined the physicochemical properties and interaction mechanism of HCQ with HSA that have extensively been elucidated by both in vitro and in silico approaches.
Collapse
Affiliation(s)
- Kashish Azeem
- Department of Biosciences, Medicinal Chemistry Laboratory, New Delhi, India.,Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Mofieed Ahmed
- Department of Biosciences, Medicinal Chemistry Laboratory, New Delhi, India.,Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Taj Mohammad
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Amad Uddin
- Department of Biosciences, Medicinal Chemistry Laboratory, New Delhi, India.,Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Anas Shamsi
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Shailja Singh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Rajan Patel
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Mohammad Abid
- Department of Biosciences, Medicinal Chemistry Laboratory, New Delhi, India
| |
Collapse
|
12
|
Singh D, Kaur L, Rahman AJ, Singh P, Kumar Tiwari A, Ojha H. Binding and mechanistic studies of 5-HT7 specific benzothiazolone derivatives with Bovine Serum Albumin: Spectroscopic and In silico studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
13
|
Zhou L, Zhou H, Xiao H, Zhang Z, Xiong Z, Tuo X, Guo H. Elucidation on inhibition and binding mechanism of bovine liver catalase by nifedipine: multi-spectroscopic analysis and computer simulation methods. LUMINESCENCE 2022; 37:1547-1556. [PMID: 35816002 DOI: 10.1002/bio.4330] [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: 03/20/2022] [Revised: 06/18/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022]
Abstract
Nifedipine (NDP), a dihydropyridine calcium antagonist, is widely used for the treatment of hypertension and angina pectoris. Catalase is a key antioxidant enzyme that is closely relevant to the level of reactive oxygen species (ROS) in vivo. Here, the research explored the effects of NDP on the conformation and catalytic function of bovine liver catalase (BLC) through enzymatic reaction kinetic techniques, multi-spectroscopic analysis and computer simulation method. Kinetic studies clarified that the NDP debased the activity of BLC by non-competitive inhibition mechanism. Based on the data of trials, it was a static quenching mechanism that functioned in the quenching of intrinsic fluorescence of BLC. The binding constant value was (4.486 ± 0.008) × 104 M-1 (298 K) and BLC had one binding site for NDP. Tyr was prone to be exposed more to a hydrophilic environment in wake of a shift in fluorescence value. The binding reaction of BLC to NDP caused the conformational alteration of BLC, which in turn led to increase of the α-helix and decline of β-sheet contents. Furthermore, several amino acids residues interacted with NDP by means of van der Waals forces, whereas Gln397, Asn368, Gln371, Asn384 and Pro377 formed several Hydrogen Bonds with NDP.
Collapse
Affiliation(s)
- Like Zhou
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China
| | - Hui Zhou
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China
| | - Huilong Xiao
- School of Pharmacy, Nanchang University, Nanchang, Jiangxi, China
| | - Zihang Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China
| | - Ziyun Xiong
- School of Pharmacy, Nanchang University, Nanchang, Jiangxi, China
| | - Xun Tuo
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China
| | - Hui Guo
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China
| |
Collapse
|
14
|
Bhat AR, Wani FA, Behera K, Khan AB, Patel R. Formulation of biocompatible microemulsions for encapsulation of anti-TB drug rifampicin: A physicochemical and spectroscopic study. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128846] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
15
|
Naik R, Pawar S, Seetharamappa J. Elucidating the binding mechanism of a cholesterol absorption inhibitor with a serum albumin: spectroscopic, zeta potential, voltammetric and computational studies. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02148-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
16
|
Xu YD, Tian L, Lai RY, Li Z, Procházková E, Ho J, Stenzel MH. Development of an Albumin–Polymer Bioconjugate via Covalent Conjugation and Supramolecular Interactions. Bioconjug Chem 2022; 33:321-332. [DOI: 10.1021/acs.bioconjchem.1c00536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- You Dan Xu
- School of Chemistry, The University of New South Wales, Sydney 2052, NSW, Australia
| | - Linqing Tian
- School of Chemistry, The University of New South Wales, Sydney 2052, NSW, Australia
| | - Rebecca Yong Lai
- School of Chemistry, The University of New South Wales, Sydney 2052, NSW, Australia
| | - Zihao Li
- School of Chemistry, The University of New South Wales, Sydney 2052, NSW, Australia
| | - Eliška Procházková
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Prague 166 10, Czech Republic
| | - Junming Ho
- School of Chemistry, The University of New South Wales, Sydney 2052, NSW, Australia
| | - Martina H. Stenzel
- School of Chemistry, The University of New South Wales, Sydney 2052, NSW, Australia
| |
Collapse
|
17
|
Ma Z, Cheng J, Jiao S, Jing P. Interaction of mulberry anthocyanins with soybean protein isolate: Effect on the stability of anthocyanins and protein
in vitro
digestion characteristics. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15576] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhen Ma
- Shanghai Food Safety and Engineering Technology Research Center Key Laboratory of Urban Agriculture Ministry of Agriculture School of Agriculture and Biology Shanghai Jiao Tong University 800 Dongchuan Rd Shanghai 200240 China
| | - Jing Cheng
- Shanghai Food Safety and Engineering Technology Research Center Key Laboratory of Urban Agriculture Ministry of Agriculture School of Agriculture and Biology Shanghai Jiao Tong University 800 Dongchuan Rd Shanghai 200240 China
| | - Shunshan Jiao
- Shanghai Food Safety and Engineering Technology Research Center Key Laboratory of Urban Agriculture Ministry of Agriculture School of Agriculture and Biology Shanghai Jiao Tong University 800 Dongchuan Rd Shanghai 200240 China
| | - Pu Jing
- Shanghai Food Safety and Engineering Technology Research Center Key Laboratory of Urban Agriculture Ministry of Agriculture School of Agriculture and Biology Shanghai Jiao Tong University 800 Dongchuan Rd Shanghai 200240 China
| |
Collapse
|
18
|
Molecular interaction of Sunset Yellow with whey protein: Multi-spectroscopic techniques and computational study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117838] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
19
|
Su Y, Sun Y, Zhai Y, Gu L, Li J, Gong L, Chang C, Yang Y. Effects of surfactants on activity and structure of egg yolk antibody. FOOD AND BIOPRODUCTS PROCESSING 2022. [DOI: 10.1016/j.fbp.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
20
|
Żamojć K, Wyrzykowski D, Chmurzyński L. On the Effect of pH, Temperature, and Surfactant Structure on Bovine Serum Albumin-Cationic/Anionic/Nonionic Surfactants Interactions in Cacodylate Buffer-Fluorescence Quenching Studies Supported by UV Spectrophotometry and CD Spectroscopy. Int J Mol Sci 2021; 23:ijms23010041. [PMID: 35008466 PMCID: PMC8744808 DOI: 10.3390/ijms23010041] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/12/2021] [Accepted: 12/20/2021] [Indexed: 01/19/2023] Open
Abstract
Due to the fact that surfactant molecules are known to alter the structure (and consequently the function) of a protein, protein–surfactant interactions are very important in the biological, pharmaceutical, and cosmetic industries. Although there are numerous studies on the interactions of albumins with surfactants, the investigations are often performed at fixed environmental conditions and limited to separate surface-active agents and consequently do not present an appropriate comparison between their different types and structures. In the present paper, the interactions between selected cationic, anionic, and nonionic surfactants, namely hexadecylpyridinium chloride (CPC), hexadecyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS), polyethylene glycol sorbitan monolaurate, monopalmitate, and monooleate (TWEEN 20, TWEEN 40, and TWEEN 80, respectively) with bovine serum albumin (BSA) were studied qualitatively and quantitatively in an aqueous solution (10 mM cacodylate buffer; pH 5.0 and 7.0) by steady-state fluorescence spectroscopy supported by UV spectrophotometry and CD spectroscopy. Since in the case of all studied systems, the fluorescence intensity of BSA decreased regularly and significantly under the action of the surfactants added, the fluorescence quenching mechanism was analyzed thoroughly with the use of the Stern–Volmer equation (and its modification) and attributed to the formation of BSA–surfactant complexes. The binding efficiency and mode of interactions were evaluated among others by the determination, comparison, and discussion of the values of binding (association) constants of the newly formed complexes and the corresponding thermodynamic parameters (ΔG, ΔH, ΔS). Furthermore, the influence of the structure of the chosen surfactants (charge of hydrophilic head and length of hydrophobic chain) as well as different environmental conditions (pH, temperature) on the binding mode and the strength of the interaction has been investigated and elucidated.
Collapse
|
21
|
A novel Au(III) complex with the 5,5′-dimethyl-2,2′-bipyridine ligand: Synthesis, characterization, X-ray crystal structure and biological evaluation. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
22
|
Wu J, Qi Y, Liu Z, Jia H, Hu Y, Feng F. Investigation on the Interaction of Dy(Ш)/Rutin Complexes with Bovine Serum Albumin by Spectroscopic Methods. J SOLUTION CHEM 2021. [DOI: 10.1007/s10953-021-01128-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
23
|
Kumar D, Kumari K, Vishvakarma VK, Jayaraj A, Kumar D, Ramappa VK, Patel R, Kumar V, Dass SK, Chandra R, Singh P. Promising inhibitors of main protease of novel corona virus to prevent the spread of COVID-19 using docking and molecular dynamics simulation. J Biomol Struct Dyn 2021; 39:4671-4685. [PMID: 32567995 PMCID: PMC7332863 DOI: 10.1080/07391102.2020.1779131] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 06/03/2020] [Indexed: 01/12/2023]
Abstract
Coronavirus disease-2019 (COVID-19) is a global health emergency and the matter of serious concern, which has been declared a pandemic by WHO. Till date, no potential medicine/ drug is available to cure the infected persons from SARS-CoV-2. This deadly virus is named as novel 2019-nCoV coronavirus and caused coronavirus disease, that is, COVID-19. The first case of SARS-CoV-2 infection in human was confirmed in the Wuhan city of the China. COVID-19 is an infectious disease and spread from man to man as well as surface to man . In the present work, in silico approach was followed to find potential molecule to control this infection. Authors have screened more than one million molecules available in the ZINC database and taken the best two compounds based on binding energy score. These lead molecules were further studied through docking against the main protease of SARS-CoV-2. Then, molecular dynamics simulations of the main protease with and without screened compounds were performed at room temperature to determine the thermodynamic parameters to understand the inhibition. Further, molecular dynamics simulations at different temperatures were performed to understand the efficiency of the inhibition of the main protease in the presence of the screened compounds. Change in energy for the formation of the complexes between the main protease of novel coronavirus and ZINC20601870 as well ZINC00793735 at room temperature was determined on applying MM-GBSA calculations. Docking and molecular dynamics simulations showed their antiviral potential and may inhibit viral replication experimentally. Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Durgesh Kumar
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Kamlesh Kumari
- Department of Zoology, Deen Dayal Upadhyaya College, University of Delhi, New Delhi, India
| | - Vijay Kumar Vishvakarma
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | | | - Dhiraj Kumar
- Department of Zoology, Jiwaji University, Gwalior, India
| | | | - Rajan Patel
- CIRBS, Jamia Millia Islamia, New Delhi, India
| | - Vinod Kumar
- Special Centre for Nano Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Sujata K. Dass
- Department of Neurology, BLK Super Speciality Hospital, New Delhi, India
| | - Ramesh Chandra
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Prashant Singh
- Department of Neurology, BLK Super Speciality Hospital, New Delhi, India
| |
Collapse
|
24
|
The anion of choline-based ionic liquids tailored interactions between ionic liquids and bovine serum albumin, MCF-7 cells, and bacteria. Colloids Surf B Biointerfaces 2021; 206:111971. [PMID: 34271329 DOI: 10.1016/j.colsurfb.2021.111971] [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: 03/29/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 01/19/2023]
Abstract
Choline-based ionic liquids (ILs) have been widely applied because of their good biocompatibility. Herein, the toxicity of choline-based ILs containing different anions was studied by UV-vis absorption spectra, fluorescence spectra, MTT assays and antibacterial experiments. The results explained that choline chloride ([Ch][Cl]) had no obvious effect on the conformation of bovine serum albumin (BSA), while the conformation could be slightly changed by choline bromide ([Ch][Br]). In the presence of choline iodide ([Ch][I]), choline bitartrate ([Ch][Bit]) and choline dihydrogen citrate ([Ch][Dhc]), the conformation of BSA changed significantly. The quenching mechanisms of [Ch][Bit] and [Ch][Dhc] were static quenching procedure, while there were charge transfer quenching and static quenching for [Ch][I]. ILs combined with BSA in spontaneous manner driven by hydrogen bond and van der Waals force, which was proved by thermodynamic constants and molecular docking. The toxicity of the five ILs to mammalian cells and bacteria came to a similar conclusion. [Ch][Cl] had little toxicity to cells, which was less than [Ch][Br] and [Ch][I]. [Ch][Bit] and [Ch][Dhc] were more toxic. These results provide more information to understand the effect of anions on choline-based ILs, in order to find low toxic choline-based ILs that can be used in biological and pharmaceutical fields.
Collapse
|
25
|
Aslam J, Hussain Lone I, Ansari F, Aslam A, Aslam R, Akram M. Molecular binding interaction of pyridinium based gemini surfactants with bovine serum albumin: Insights from physicochemical, multispectroscopic, and computational analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 250:119350. [PMID: 33387804 DOI: 10.1016/j.saa.2020.119350] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
To study the interaction of the series of pyridinium based gemini surfactants (GS) (referred to as m-Py-m, m = 14, 16); 4,4'-(propane-1,3-diyl)bis(1-(2-(tetradecyloxy)-2-oxoethyl) dipyridinium chloride (14-Py-14), and 4,4'-(propane-1,3-diyl) bis(1-(2-(hexadecyloxy)-2-oxoethyl)dipyridinium chloride (16-Py-16) with bovine serum albumin (BSA), various physicochemical and spectroscopic tools such as tensiometry, steady-state fluorescence, synchronous fluorescence, pyrene fluorescence, UV-visible, far-UV circular dichroism (CD) were utilized at physiological pH (7.4) and 298 K in combination with computational molecular modeling analysis. The tensiometric results show significant modifications in interfacial and thermodynamic parameters for m-Py-m GS upon BSA combination, deciphering the gemini surfactant-BSA interaction. Steady-state fluorescence analysis evaluates the structural alterations of BSA with the addition of m-Py-m GS. The plots of Stern-Volmer, modified Stern-Volmer, and thermodynamic parameters were used to determine the binding type of m-Py-m GS to BSA. The synchronous fluorescence spectra state a mild effect of gemini surfactants on the emission intensity of tyrosine (Tyr) residues, on the other hand, tryptophan (Trp) residues showed a significant effect. Post addition of GS, the plot of pyrene fluorescence reveals the mild micropolarity fluctuations via the probe (pyrene) molecules encapsulated in BSA. UV-visible experiments support the complex formation between the BSA and m-Py-m GS. Far-UV CD measurements revealed the modifications in the secondary structure of protein produced by m-Py-m GS. Furthermore, we also used the computational molecular modeling for attaining deep insight into BSA and m-Py-m GS binding and the results are supported with our experimental results.
Collapse
Affiliation(s)
- Jeenat Aslam
- Department of Chemistry, College of Science, Yanbu-30799, Taibah University, Al-Madina, Saudi Arabia.
| | - Irfan Hussain Lone
- Department of Chemistry, College of Science, Yanbu-30799, Taibah University, Al-Madina, Saudi Arabia
| | - Farah Ansari
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202002, India
| | - Afroz Aslam
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202002, India
| | - Ruby Aslam
- Corrosion Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India
| | - Mohd Akram
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202002, India.
| |
Collapse
|
26
|
Maurya N, Patel R. Comparative binding analysis of noscapine and piperine with tRNA: A structural perturbation and energetic study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 247:119089. [PMID: 33126137 DOI: 10.1016/j.saa.2020.119089] [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: 06/06/2020] [Revised: 10/05/2020] [Accepted: 10/10/2020] [Indexed: 06/11/2023]
Abstract
In this study, we have exploring the binding mechanisms of the two anticancer alkaloid noscapine (NOS) and piperine (PIP) with tRNA using different spectroscopy and computational method. Absorbance and emission spectra revealed that both the drugs show strong binding with tRNA, where NOS intercalate between the base pairs of tRNA and PIP binds in the groove of tRNA. Competitive binding study and steady state anisotropy further confirms the intercalative mode of binding between NOS and tRNA and groove binding in PIP-tRNA complex. The observed thermodynamic parameters suggested that NOS-tRNA complex formation is endothermic and entropy driven, however it was exothermic, and enthalpy driven in case of PIP-tRNA complex. CD and time resolved fluorescence studies show the structural perturbations and conformational change in tRNA structure with NOS as well as PIP. Molecular docking studies are comparable with experimental results and further confirmed that the hydrophobic interactions involved in the NOS-tRNA binding, whereas hydrogen binding and van der Waals interactions play important role in the PIP-tRNA complex formation. This study can be useful to understand the potential binding and resultant tRNA damage by alkaloids and deigned new target specific anticancer drug.
Collapse
Affiliation(s)
- Neha Maurya
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
| |
Collapse
|
27
|
Anigboro AA, Avwioroko OJ, Ohwokevwo OA, Pessu B, Tonukari NJ. Phytochemical profile, antioxidant, α-amylase inhibition, binding interaction and docking studies of Justicia carnea bioactive compounds with α-amylase. Biophys Chem 2021; 269:106529. [PMID: 33360111 DOI: 10.1016/j.bpc.2020.106529] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/11/2020] [Accepted: 12/11/2020] [Indexed: 12/12/2022]
Abstract
The present study investigated the antioxidant and invitro antidiabetic capacities of Justicia carnea aqueous leaf extract (JCAE) using α-amylase inhibition model. α-Amylase binding-interaction with JCAE was also investigated using fluorescence spectroscopy and molecular docking. Phytochemical screening and Gas Chromatography-Mass Spectrometry (GC-MS) analysis indicated presence of bioactive compounds. Phenolic (132 mg GAE/g) and flavonoid contents (31.08 mg CE/g) were high. JCAE exhibited high antioxidant capacity and effectively inhibited α-amylase activity (IC50, 671.43 ± 1.88 μg/mL), though lesser than acarbose effect (IC50, 108.91 ± 0.61 μg/mL). α-Amylase intrinsic fluorescence was quenched in the presence of JCAE. Ultraviolet-visible and FT-IR spectroscopies affirmed mild changes in α-amylase conformation. Synchronous fluorescence analysis indicated alterations in the microenvironments of tryptophan residues near α-amylase active site. Molecular docking affirmed non-polar interactions of compounds 6 and 7 in JCAE with Asp-197 and Trp-58 residues of α-amylase, respectively. Overall, JCAE indicated potential to prevent postprandial hyperglycemia by slowing down carbohydrate hydrolysis.
Collapse
Affiliation(s)
- Akpovwehwee A Anigboro
- Department of Biochemistry, Faculty of Science, Delta State University, Abraka, Nigeria.
| | - Oghenetega J Avwioroko
- Department of Biochemistry, Faculty of Basic Medical Sciences, Redeemer's University, Ede, Osun State, Nigeria; Center for Chemical and Biochemical Research (CCBR), Redeemer's University, Ede, Osun State, Nigeria.
| | - Oghenenyore A Ohwokevwo
- Department of Biochemistry, Faculty of Science, University of Port-Harcourt, Choba, Rivers State, Nigeria
| | - Beruoritse Pessu
- Department of Biochemistry, Faculty of Science, Delta State University, Abraka, Nigeria
| | - Nyerhovwo J Tonukari
- Department of Biochemistry, Faculty of Science, Delta State University, Abraka, Nigeria
| |
Collapse
|
28
|
Characterization, biological evaluation and molecular docking of mulberry fruit pectin. Sci Rep 2020; 10:21789. [PMID: 33311512 PMCID: PMC7732840 DOI: 10.1038/s41598-020-78086-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 10/22/2020] [Indexed: 12/23/2022] Open
Abstract
Contemplating the exemplary benefits of pectin on human health, we precisely characterized and evaluated the antibacterial and anticancer activities from purified Mulberry Fruit Pectins (MFP). Here, we tested BR-2 and S-13 varieties of mulberry fruit pectins against six bacterial strains and two human cancer cell lines (HT-29 and Hep G-2), using MIC and an in vitro cell-based assay respectively. The BR-2 mulberry fruit pectin performs superior to S-13 by inhibiting strong bacterial growth (MIC = 500–1000 μg/mL) against tested bacterial strains and cytotoxic activities at the lowest concentration (10 µg/ml) against the Hep G-2 cell line. However, both tested drugs failed to exhibit cytotoxicity on the human colon cancer cell line (HT-29). Based on molecular interaction through docking, pectin binds effectively with the receptors (1e3g, 3t0c, 5czz, 6j7l, 6v40, 5ibs, 5zsy, and 6ggb) and proven to be a promising antimicrobial and anti-cancer agents. The pursuit of unexploited drugs from mulberry fruit pectin will potentially combat against bacterial and cancer diseases. Finally, future perspectives of MFP for the treatment of many chronic diseases will help immensely due to their therapeutic properties.
Collapse
|
29
|
Exploring the binding interactions of structurally diverse dichalcogenoimidodiphosphinate ligands with α-amylase: Spectroscopic approach coupled with molecular docking. Biochem Biophys Rep 2020; 24:100837. [PMID: 33251341 PMCID: PMC7677685 DOI: 10.1016/j.bbrep.2020.100837] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 01/13/2023] Open
Abstract
Postprandial hyperglycemia has orchestrated untimely death among diabetic patients over the decades and regulation of α-amylase activity is now becoming a promising management option for type 2 diabetes. The present study investigated the binding interactions of three structurally diverse dichalcogenoimidodiphosphinate ligands with α-amylase to ascertain the affinity of the ligands for α-amylase using spectroscopic and molecular docking methods. The ligands were characterized using 1H and 31P NMR spectroscopy and CHN analysis. Diselenoimidodiphosphinate ligand (DY300), dithioimidodiphosphinate ligand (DY301), and thioselenoimidodiphosphinate ligand (DY302) quenched the intrinsic fluorescence intensity of α-amylase via a static quenching mechanism with bimolecular quenching constant (Kq) values in the order of x1011 M-1s-1, indicating formation of enzyme-ligand complexes. A binding stoichiometry of n≈1 was observed for α-amylase, with high binding constants (Ka). α-Amylase inhibition was as follow: Acarbose > DY301>DY300>DY302. Values of thermodynamic parameters obtained at temperatures investigated (298, 304 and 310 K) revealed spontaneous complex formation (ΔG<0) between the ligands and α-amylase; the main driving forces were hydrophobic interactions (with DY300, DY301, except DY302). UV–visible spectroscopy and Förster resonance energy transfer (FRET) affirmed change in enzyme conformation and binding occurrence. Molecular docking revealed ligands interaction with α-amylase via some key catalytic site amino acid residues (Asp197, Glu233 and Asp300). DY301 perhaps showed highest α-amylase inhibition (IC50, 268.11 ± 0.74 μM) due to its moderately high affinity and composition of two sulphide bonds unlike the others. This study might provide theoretical basis for development of novel α-amylase inhibitors from dichalcogenoimidodiphosphinate ligands for management of postprandial hyperglycemia. Interaction of α-amylase with dichalcogenoimidodiphosphinate ligands was studied. Spectroscopy and molecular docking explored the interaction mechanisms. The main driving forces were hydrophobic interactions with DY300 and DY301. The ligands quenched α-amylase fluorescence intensity by static mechanism. Dichalcogenoimidodiphosphinate ligands inhibited α-amylase activity.
Collapse
|
30
|
Mechanistic interaction of triflate based noscapine ionic liquid with BSA: Spectroscopic and chemoinformatics approaches. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113695] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
31
|
Khataee S, Dehghan G, Rashtbari S, Dastmalchi S, Iranshahi M. Noncompetitive Inhibition of Bovine Liver Catalase by Lawsone: Kinetics, Binding Mechanism and in silico Modeling Approaches. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2020; 19:383-397. [PMID: 32922495 PMCID: PMC7462507 DOI: 10.22037/ijpr.2019.111600.13255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Lawsone (2-hydroxy-1,4-naphtoquinone; LAW), as a naphthoquinone derivative, is the biologically active component of Henna leaves. In this study, the structural and functional effects of LAW on bovine liver catalase (BLC), has been studied utilizing ultraviolet-visible (UV-vis) absorption, fluorescence, and ATR-FTIR spectroscopic techniques, and molecular docking approach. In-vitro kinetic study showed that by adding gradual concentrations of LAW, catalase activity was significantly decreased through noncompetitive inhibition mechanism. UV-vis and ATR-FTIR spectroscopic results illustrated that additional concentration of LAW lead to significant change in secondary structure of the enzyme.The fluorescence spectroscopic results at different temperatures indicated that LAW quenches the intrinsic fluorescence of BLC by dynamic mechanismand there is just one binding site for LAW on BCL. Changing the micro-environment nearby two aromatic residues (tryptophan (Trp) and tyrosine (Tyr)) were resulted from synchronous fluorescence. The thermodynamic parameters were implied that the hydrophobic bindings have a significant impress in the organization of the LAW-catalase complex. Molecular docking data in agreement with experimental results, confirmed that hydrophobic interactions are dominant. Inhibition of enzyme activity by LAW, showed that along withits helpful effects as ananti-oxidant compounds, the side effects of LAW should not be overlooked.
Collapse
Affiliation(s)
- Simin Khataee
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Gholamreza Dehghan
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Samaneh Rashtbari
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Siavash Dastmalchi
- Biotechnology Research Center, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Pharmacy, Near East University, POBOX: 99138, Nicosia, North Cyprus, Mersin 10, Turkey
| | - Mehrdad Iranshahi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
32
|
Vishvakarma VK, Chandra R, Singh P. An Experimental and Theoretical Approach to Understand Fever, DENF & its Cure. Infect Disord Drug Targets 2020; 21:495-513. [PMID: 32888275 DOI: 10.2174/1871526520999200905122052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/21/2020] [Accepted: 07/17/2020] [Indexed: 11/22/2022]
Abstract
Fever is a response of a human body, due to an increase in the temperature, against certain stimuli. It may be associated with several reasons and one of the major causes of fever is a mosquito bite. Fever due to dengue virus (DENV) infection is being paid most attention out of several other fever types because of a large number of deaths reported worldwide. Dengue virus is transmitted by biting of the mosquitoes, Aedes aegypti and Aedes albopictus. DENV1, DENV2, DENV3 and DENV4 are the four serotypes of dengue virus and these serotypes have 65% similarities in their genomic structure. The genome of DENV is composed of single-stranded RNA and it encodes for the polyprotein. Structural and non-structural proteins (nsP) are the two major parts of polyprotein. Researchers have paid high attention to the non-structural protease (nsP) of DENV like nsP1, nsP2A, nsP2B, nsP3, nsP4A, nsP4B and nsP5. The NS2B-NS3 protease of DENV is the prime target of the researchers as it is responsible for the catalytic activity. In the present time, Dengvaxia (vaccine) is being recommended to patients suffering severely from DENV infection in few countries only. Till date, neither a vaccine nor an effective medicine is available to combat all four serotypes. This review describes the fever, its causes, and studies to cure the infection due to DENV using theoretical and experimental approaches.
Collapse
Affiliation(s)
- Vijay Kumar Vishvakarma
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India
| | - Ramesh Chandra
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Prashant Singh
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India
| |
Collapse
|
33
|
Mirdha L, Chakraborty H. Fluorescence quenching by ionic liquid as a potent tool to study protein unfolding intermediates. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113408] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
34
|
Investigating the biomolecular interactions between model proteins and glycine betaine surfactant with reference to the stabilization of emulsions and antimicrobial properties. Colloids Surf B Biointerfaces 2020; 194:111226. [PMID: 32623332 DOI: 10.1016/j.colsurfb.2020.111226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/04/2020] [Accepted: 06/25/2020] [Indexed: 11/23/2022]
Abstract
Binding effect and interaction of 2-pentadecanoyloxymethyl)trimethylammonium bromide (DMGM-14) with bovine serum albumin (BSA) and hen egg white lysozyme (HEWL) were systematically investigated by the fluorescence spectroscopy, circular dichroism (CD) spectroscopy, isothermal titration calorimetry (ITC), surface tension analysis, and molecular docking studies. The emulsion properties and particle size distribution of surfactant/protein complexes containing sunflower oil were studied using static light scattering and confocal laser scanning microscopy (CLSM). The fluorescence spectroscopy and ITC analysis confirmed the complexes formation of DMGM-14 with BSA and HEWL which was also verified by surface tension measurements. CD results explained the conformational changes in BSA and HEWL upon DMGM-14 complexation. Molecular docking study provides insight into the binding of DMGM-14 into the specific sites of BSA and HEWL. Besides, the studies drew a detailed picture on the emulsification properties of DMGM-14 with BSA and HEWL. In addition, the in vitro experiment revealed a broad antibacterial spectrum of DMGM-14 and DMGM-14/HEWL complex including activity against Gram-positive and Gram-negative bacteria. In conclusion, the present study revealed that the interaction between DMGM-14 with BSA and HEWL is important for the pharmaceutical, biological, and food products.
Collapse
|
35
|
Attri P, Choi S, Kim M, Shiratani M, Cho AE, Lee W. Influence of alkyl chain substitution of ammonium ionic liquids on the activity and stability of tobacco etch virus protease. Int J Biol Macromol 2020; 155:439-446. [DOI: 10.1016/j.ijbiomac.2020.03.175] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 02/06/2023]
|
36
|
Ahmad M, Ritzoulis C, Pan W, Chen J. Biologically-relevant interactions, phase separations and thermodynamics of chitosan–mucin binary systems. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
37
|
Maurya N, Imtiyaz K, Alam Rizvi MM, Khedher KM, Singh P, Patel R. Comparative in vitro cytotoxicity and binding investigation of artemisinin and its biogenetic precursors with ctDNA. RSC Adv 2020; 10:24203-24214. [PMID: 35516214 PMCID: PMC9055135 DOI: 10.1039/d0ra02042g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/22/2020] [Indexed: 12/16/2022] Open
Abstract
Artemisinin (ART) and its biogenetic precursors artemisinic acid (AA) and dihydroartemisinic acid (DHAA) are important traditional medicinal herb compounds with tumor growth inhibition properties. Herein, we have studied the cytotoxicity of ART, AA, and DHAA on different cancer cell lines (H1299, A431, and HCT 116) and investigated in detail their binding mechanisms with ctDNA by using spectroscopy, cyclic voltammetry, and computational methods. The UV absorbance, cyclic voltammetry, DNA helix melting, competition binding, and circular dichroism studies suggested that the complex formation of ART-ctDNA and AA-ctDNA occurs through groove binding. However, in the case of DHAA-ctDNA interaction, electrostatic interaction plays a major role. The thermodynamic parameters, viz., ΔG 0, ΔH 0, and ΔS 0 were calculated, which showed the involvement of hydrogen bonds and van der Waals interactions for drug-ctDNA interaction. FTIR and molecular docking results suggested that ART, AA, and DHAA were bound to the A-T rich region in the minor groove of ctDNA.
Collapse
Affiliation(s)
- Neha Maurya
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia New Delhi-110025 India +91 11 26983409 +91 8860634100
| | - Khalid Imtiyaz
- Department of Biosciences, Jamia Millia Islamia New Delhi-110025 India
| | | | - Khaled Mohamed Khedher
- Department of Civil Engineering, College of Engineering, King Khalid University Abha 6421 Saudi Arabia
- Department of Civil Engineering, ISET, DGET Nabeul Tunisia
| | - Prashant Singh
- Department of Chemistry, ARSD College, University of Delhi New Delhi-110021 India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia New Delhi-110025 India +91 11 26983409 +91 8860634100
| |
Collapse
|
38
|
Kou SB, Lin ZY, Wang BL, Shi JH, Liu YX. Evaluation of the interaction of novel tyrosine kinase inhibitor apatinib mesylate with bovine serum albumin using spectroscopies and theoretical calculation approaches. J Biomol Struct Dyn 2020; 39:4795-4806. [PMID: 32568635 DOI: 10.1080/07391102.2020.1782767] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Apatinib mesylate (APM), a novel tyrosine kinase inhibitor, has been applied in treating various cancers. In the present study, the binding mechanism of APM with bovine serum albumin (BSA) was studied by making use of various spectroscopic and theoretical calculation approaches to provide theoretical support for further studying its pharmacokinetics and metabolism. The results from fluorescence experiments showed that the quenching mechanism of BSA induced by APM was static quenching and the APM-BSA complex with the stoichiometry of 1:1 was formed during binding reaction. Moreover, the findings also showed that the binding process of APM to BSA was spontaneous and enthalpy-driven, and the mainly driving forces were hydrogen bonding, van der Waals as well as hydrophobic interactions. From the outcomes of the competitive experiments, it can be found that the binding site was primarily nestled in sub-domain IIIA of BSA (site II) which was in line with the results of molecular docking. An appreciable decline in α-helix content of BSA can be observed from the FT-IR data, meaning that the conformational change of BSA occurred after binding with APM, this phenomenon can be corroborated by the results of UV-vis, synchronous fluorescence and 3D fluorescence studies. Furthermore, the effect of some metal ions (e.g. K+, Co2+, Ni2+, Fe3+) on the binding constant of APM to BSA was explored.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Song-Bo Kou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Zhen-Yi Lin
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Bao-Li Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Jie-Hua Shi
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Ying-Xin Liu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| |
Collapse
|
39
|
Kumar D, Singh P, Jayaraj A, Kumar V, Kumari K, Chandra R, Ramappa VK. Selective Docking of Pyranooxazoles Against nsP2 of CHIKV Eluted Through Isothermally and Non‐Isothermally MD simulations. ChemistrySelect 2020. [DOI: 10.1002/slct.202000768] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Durgesh Kumar
- Department of Chemistry A.R.S.D. CollegeUniversity of Delhi Delhi India
- Department of ChemistryUniversity of Delhi Delhi India
| | - Prashant Singh
- Department of Chemistry A.R.S.D. CollegeUniversity of Delhi Delhi India
| | | | - Vinod Kumar
- Special Centre for Nano SciencesJawaharlal Nehru University Delhi 110067 India
| | - Kamlesh Kumari
- Department of Zoology DDU CollegeUniversity of Delhi Delhi India
| | | | - Venkatesh Kumar Ramappa
- Department of ZoologyBabasaheb Bhimrao Ambedkar University Lucknow 226025 Uttar Pradesh India
| |
Collapse
|
40
|
Singh G, Kaur M, Singh D, Kesavan AK, Kang TS. Antimicrobial Colloidal Complexes of Lysozyme with Bio-Based Surface Active Ionic Liquids in Aqueous Medium. J Phys Chem B 2020; 124:3791-3800. [DOI: 10.1021/acs.jpcb.0c00339] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gagandeep Singh
- Department of Chemistry, UGC-Centre for Advance Studies − II, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Manvir Kaur
- Department of Chemistry, UGC-Centre for Advance Studies − II, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Drishtant Singh
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University Amritsar, Punjab 143005, India
| | - Anup Kumar Kesavan
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University Amritsar, Punjab 143005, India
| | - Tejwant Singh Kang
- Department of Chemistry, UGC-Centre for Advance Studies − II, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| |
Collapse
|
41
|
Chilom CG, David M, Florescu M. Monitoring biomolecular interaction between folic acid and bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 230:118074. [PMID: 31981855 DOI: 10.1016/j.saa.2020.118074] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/14/2020] [Accepted: 01/15/2020] [Indexed: 06/10/2023]
Abstract
Folic acid is a bioactive food component whose deficiency can lead to a variety of health problems, while a high intake of folic acid can reduce the cytotoxicity of natural killer cells. The binding mechanism of folic acid to free bovine serum albumin (BSA) was studied using fluorescence, while the biomolecular interaction between confined-BSA and free folic acid was assessed by electrochemical methods and surface plasmon resonance. The fluorescence quenching mechanism of BSA by folic acid was found to have a static character. The thermodynamic parameters of the interaction were determined and indicated a spontaneous exothermic process with a binding constant of 8.72 × 104 M-1 at 25 °C. Confinement of BSA to gold surfaces occurred through different immobilization methods (static and hydrodynamic), inducing conformational changes, which influenced the orientation of BSA molecules binding sites towards free folic acid. The apparent binding constant using electrochemical methods (voltammetry and impedance spectroscopy) was only 5 times higher (41 and 37 × 104 M-1) compared to BSA free in solution, while for surface plasmon resonance, where the hydrodynamic immobilization method was used, the value was much higher (19 × 106 M-1). This work gives also an insight on the interaction of BSA with gold substrates, surface plasmon resonance enabling the calculation of the adsorbed amount. The obtained results help understanding the specific interaction between free and confined BSA with free folic acid.
Collapse
Affiliation(s)
- Claudia G Chilom
- Department of Electricity, Solid Physics and Biophysics, Faculty of Physics, University of Bucharest, Măgurele, Romania, Postal address: Str. Atomistilor no. 405, CP MG - 11, Bucuresti-Magurele, RO 077125, Romania
| | - Melinda David
- Department of Fundamental, Prophylactic and Clinical Disciplines, Faculty of Medicine, Transilvania University of Brasov, Brasov, Romania, Colina Universitatii no. 1, Building C, room CI30, 500068, Brasov, Romania.
| | - Monica Florescu
- Department of Fundamental, Prophylactic and Clinical Disciplines, Faculty of Medicine, Transilvania University of Brasov, Brasov, Romania, Colina Universitatii no. 1, Building C, room CI30, 500068, Brasov, Romania.
| |
Collapse
|
42
|
Shamsi F, Hasan P, Queen A, Hussain A, Khan P, Zeya B, King HM, Rana S, Garrison J, Alajmi MF, Rizvi MMA, Zahid M, Imtaiyaz Hassan M, Abid M. Synthesis and SAR studies of novel 1,2,4-oxadiazole-sulfonamide based compounds as potential anticancer agents for colorectal cancer therapy. Bioorg Chem 2020; 98:103754. [PMID: 32200329 DOI: 10.1016/j.bioorg.2020.103754] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 02/07/2020] [Accepted: 03/11/2020] [Indexed: 12/24/2022]
Abstract
A diverse series of 1,2,4-oxadiazoles based substituted compounds were designed, synthesized and evaluated as anticancer agents targeting carbonic anhydrase IX (CAIX). Initial structure-activity analysis suggested that the thiazole/thiophene-sulfonamide conjugates of 1,2,4-oxadiazoles exhibited potent anticancer activities with low μM potencies. Compound OX12 exhibited antiproliferative activity (IC50 = 11.1 µM) along with appreciable inhibition potential for tumor-associated CAIX (IC50 = 4.23 µM) isoform. Therefore, OX12 was structurally optimized and its SAR oriented derivatives (OX17-27) were synthesized and evaluated. This iteration resulted in compound OX27 with an almost two-fold increase in antiproliferative effect (IC50 = 6.0 µM) comparable to the clinical drug doxorubicin and significantly higher potency against CAIX (IC50 = 0.74 µM). Additionally, OX27 treatment decreases the expression of CAIX, induces apoptosis and ROS production, inhibited colony formation and migration of colon cancer cells. Our studies provide preclinical rational for the further optimization of identified OX27 as a suitable lead for the possible treatment of CRC.
Collapse
Affiliation(s)
- Farheen Shamsi
- Medicinal Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India; Genome Biology Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Phool Hasan
- Medicinal Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Aarfa Queen
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Afzal Hussain
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Parvez Khan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Bushra Zeya
- Genome Biology Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Hannah M King
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska 68198-6805, USA
| | - Sandeep Rana
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska 68198-6805, USA
| | - Jered Garrison
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198-6805, USA
| | - Mohamed F Alajmi
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - M Moshahid Alam Rizvi
- Genome Biology Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Muhammad Zahid
- Department of Environmental, Agricultural and Occupational Health, University of Nebraska Medical Center, Omaha, Nebraska 68198-6805, USA
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Mohammad Abid
- Medicinal Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India.
| |
Collapse
|
43
|
Exploring the binding interaction between bovine serum albumin and perindopril as well as influence of metal ions using multi-spectroscopic, molecular docking and DFT calculation. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2019.110641] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
44
|
Effect of adiphenine hydrochloride on the structure of bovine serum albumin: Spectroscopic and docking study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127168] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
45
|
Islam MM, Barik S, Preeyanka N, Sarkar M. Interaction of Lysozyme with Monocationic and Dicationic Ionic Liquids: Toward Finding a Suitable Medium for Biomacromolecules. J Phys Chem B 2020; 124:961-973. [DOI: 10.1021/acs.jpcb.9b10270] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mullah Muhaiminul Islam
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, HBNI, Bhimpur-Padanpur,
Jatni, Khurda, Bhubaneswar 752050, Odisha, India
| | - Sahadev Barik
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, HBNI, Bhimpur-Padanpur,
Jatni, Khurda, Bhubaneswar 752050, Odisha, India
| | - Naupada Preeyanka
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, HBNI, Bhimpur-Padanpur,
Jatni, Khurda, Bhubaneswar 752050, Odisha, India
| | - Moloy Sarkar
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, HBNI, Bhimpur-Padanpur,
Jatni, Khurda, Bhubaneswar 752050, Odisha, India
| |
Collapse
|
46
|
Singh G, Kaur M, Aswal VK, Kang TS. Aqueous colloidal systems of bovine serum albumin and functionalized surface active ionic liquids for material transport. RSC Adv 2020; 10:7073-7082. [PMID: 35493898 PMCID: PMC9049728 DOI: 10.1039/c9ra05549e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 02/04/2020] [Indexed: 12/21/2022] Open
Abstract
Physicochemical and computational investigation of complexation between BSA and SAILs with application in material transport.
Collapse
Affiliation(s)
- Gagandeep Singh
- Department of Chemistry
- UGC-Centre for Advance Studies – II
- Guru Nanak Dev University
- Amritsar
- India
| | - Manvir Kaur
- Department of Chemistry
- UGC-Centre for Advance Studies – II
- Guru Nanak Dev University
- Amritsar
- India
| | - Vinod Kumar Aswal
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
| | - Tejwant Singh Kang
- Department of Chemistry
- UGC-Centre for Advance Studies – II
- Guru Nanak Dev University
- Amritsar
- India
| |
Collapse
|
47
|
Refolding of acid denatured cytochrome c by anionic surface-active ionic liquid: Choice of anion plays key role in refolding of proteins. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123872] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
48
|
Janek T, Rodrigues LR, Gudiña EJ, Burger J. Synergistic effect of hen egg white lysozyme and lysosomotropic surfactants on cell viability and membrane permeability. Colloids Surf B Biointerfaces 2019; 185:110598. [PMID: 31683205 DOI: 10.1016/j.colsurfb.2019.110598] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/14/2019] [Accepted: 10/16/2019] [Indexed: 12/13/2022]
Abstract
The interactions between two types of quaternary ammonium surfactants (N,N,N-trimethyl-2-(dodecanoyloxy)ethaneammonium bromide (DMM-11) and N,N,N-trimethyl-2-(dodecanoyloxy)propaneammonium bromide (DMPM-11)) and hen egg white lysozyme were studied through several techniques, including isothermal titration calorimetry (ITC), circular dichroism (CD) and fluorescence spectroscopy, and surface tension measurement. The average number of surfactants interacting with each molecule of lysozyme was calculated from the biophysical results. Moreover, the CD results showed that the conformation of lysozyme changed in the presence of DMM-11 and DMPM-11. The studies drew a detailed picture on the physicochemical nature of interactions between both surfactants and lysozyme. Both DMM-11 and DMPM-11, with and without lysozyme were studied against three target microorganisms, including Gram-negative (Escherichia coli) and Gram-positive (Enterococcus hirae and Enterococcus faecalis) bacteria. The results revealed a broad spectrum of antibacterial nature of surfactant/lysozyme complexes, as well as their effect on the membrane damage, hence providing the basis to further explore DMM-11 and DMPM-11 combined with lysozyme as possible antibacterial tools.
Collapse
Affiliation(s)
- Tomasz Janek
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, 51-630, Wrocław, Poland.
| | - Lígia R Rodrigues
- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal
| | - Eduardo J Gudiña
- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal
| | - Joanna Burger
- Department of Inorganic Chemistry, Wroclaw Medical University, 50-556, Wrocław, Poland
| |
Collapse
|
49
|
Bhat AR, Wani FA, Alzahrani KA, Alshehri AA, Malik MA, Patel R. Effect of rifampicin on the interfacial properties of imidazolium ionic liquids and its solubility therein. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111347] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
50
|
Simin khataee, Dehghan G, Rashtbari S, Yekta R, Sheibani N. Synergistic inhibition of catalase activity by food colorants sunset yellow and curcumin: An experimental and MLSD simulation approach. Chem Biol Interact 2019; 311:108746. [DOI: 10.1016/j.cbi.2019.108746] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/06/2019] [Accepted: 07/10/2019] [Indexed: 11/26/2022]
|