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Elshami FI, Elrefaei G, Ibrahim MM, Elmehasseb I, Shaban SY. GSH-responsive and folate receptor-targeted pyridine bisfolate-encapsulated chitosan nanoparticles for enhanced intracellular drug delivery in MCF-7 cells. Carbohydr Res 2024; 543:109207. [PMID: 39018698 DOI: 10.1016/j.carres.2024.109207] [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: 06/13/2024] [Revised: 07/08/2024] [Accepted: 07/08/2024] [Indexed: 07/19/2024]
Abstract
Folic acid receptor-targeted drug delivery system is a promising candidate for tumor-targeted delivery because its elevated expression specifically on tumor cells enables the selective delivery of cytotoxic cargo to cancerous tissue, thereby minimizing toxic side effects and increasing the therapeutic index. Pyridine bisfolate-chitosan (PyBFA@CS NPs) and folate-chitosan nanocomposite (FA@CS NPs) were synthesized with suitable particle size (256.0 ± 15.0 and 161.0 ± 5.0 nm), high stability (ζ = -27.0 ± 0.1 and -30.0 ± 0.2 mV), respectively, and satisfactory biocompatibility to target cells expressing folate receptors and try to answer the question: Is the metal center always important for activity? Since almost all pharmaceuticals work by binding to specific proteins or DNA, the in vitro binding of human serum albumin (HSA) to PyBFA@CS NPs and FA@CS NPs has been investigated and compared with PyBFA. Strong affinity to HSA is shown by quenching and binding constants in the range of 105 and 104 M-1, respectively with PyBFA@CS NPs showing the strongest. The compounds-HSA kinetic stability, affinity, and association constants were investigated using a stopped-flow method. The findings showed that all formulations bind by a static quenching mechanism that consists of two reversible steps: rapid second-order binding and a more slowly first-order isomerization reaction. The overall coordination affinity of HSA to PyBFA@CS NPs (6.6 × 106 M-1), PyBFA (4.4 × 106 M-1), and FA@CS NPs (1.3 × 106 M-1) was measured and The relative reactivity is roughly (PyBFA@CS NPs)/(PyBFA)/(FA@CS NPs) = 5/3/1. Additionally, in vitro cytotoxicity revealed that, consistent with the binding constants and coordination affinity, active-targeting formulations greatly inhibited FR-positive MCF-7 cells in compared to FRs-negative A549 cells in the following trend: PyBFA@CS NPs > PyBFA > FA@CS NPs. Furthermore, in vitro drug release of PyBFA@CS NPs was found to be stable in PBS at pH 7.4, however, the in pH 5.4 and in pH 5.4 containing 10 mM glutathione (GSH) (mimicking the tumor microenvironment) reached 43 % and 73 %, respectively indicating that the PyBFA@CS NPs system is sensitive to GSH. Folate-modified nanoparticles, PyBFA@CS NPs, are a promising therapeutic for MCF-7 therapy because they not only showed a greater affinity for HSA, but also showed higher cleavage efficiency toward the minor groove of pBR322 DNA via the hydrolytic way, as well as effective antibacterial activity that avoids the usage of extra antibiotics. .
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Affiliation(s)
- Fawzya I Elshami
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Gehad Elrefaei
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Mohamed M Ibrahim
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Ibrahim Elmehasseb
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Shaban Y Shaban
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
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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.
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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
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Suwannasom N, Sriaksorn N, Thepmalee C, Khoothiam K, Prapan A, Bäumler H, Thephinlap C. Curcumin-loaded albumin submicron particles with potential as a cancer therapy: an in vitro study. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2023; 14:1127-1140. [PMID: 38034473 PMCID: PMC10682534 DOI: 10.3762/bjnano.14.93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/24/2023] [Indexed: 12/02/2023]
Abstract
Curcumin (CUR), a polyphenolic compound, shows promising biological properties, particularly antioxidant activity. However, its medical applications are limited due to its low water solubility, bioavailability, and pH-instability. CUR-loaded albumin microparticles (CUR-HSA-MPs) of submicron size in the range of 800 to 900 nm and a zeta potential of -15 mV were prepared. The CUR loading efficiency was up to 65%. A maximum release of 37% of the encapsulated CUR was observed within 6 h when the CUR-HSA-MPs were dispersed in 50% ethanol in PBS at pH 7, while in RPMI 1640 medium the release was 7%. This demonstrates a sustainable release. The in vitro cytotoxicity of CUR-HSA-MPs showed promising anticancer potential against human hepatocellular carcinoma (Huh-7) and human breast adenocarcinoma (MCF-7) cell lines, although this effect was less pronounced in human dermal fibroblasts (HDFB) and human cholangiocyte (MMN) cell lines. Confocal microscopy was used to confirm the uptake of CUR-HSA-MPs by cancer cells. Our studies revealed that HSA-MPs are potentially promising vehicles for increasing the solubility and bioavailability of CUR.
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Affiliation(s)
- Nittiya Suwannasom
- Division of Biochemistry, School of Medical Sciences, University of Phayao 56000, Thailand
| | - Netsai Sriaksorn
- Division of Biochemistry, School of Medical Sciences, University of Phayao 56000, Thailand
| | - Chutamas Thepmalee
- Division of Biochemistry, School of Medical Sciences, University of Phayao 56000, Thailand
| | - Krissana Khoothiam
- Department of Radiological Technology, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok 65000, Thailand
| | - Ausanai Prapan
- Division of Microbiology, School of Medical Sciences, University of Phayao 56000, Thailand
| | - Hans Bäumler
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Chonthida Thephinlap
- Division of Biochemistry, School of Medical Sciences, University of Phayao 56000, Thailand
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Sahoo BK, Velavalapalli VM. Assessing Partial Inhibition of Ribonuclease A Activity by Curcumin through Fluorescence Spectroscopy and Theoretical Studies. J Fluoresc 2023:10.1007/s10895-023-03474-y. [PMID: 37870732 DOI: 10.1007/s10895-023-03474-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 10/12/2023] [Indexed: 10/24/2023]
Abstract
Molecular interactions and controlled expression of enzymatic activities are fundamental to all cellular functions in an organism. The active polyphenol in turmeric known as curcumin (CCM) is known to exhibit diverse pharmacological activities. Ribonucleases (RNases) are the hydrolytic enzymes that plays important role in ribonucleic acid (RNA) metabolism. Uncontrolled and unwanted cleavage of RNA by RNases may be the cause of cell death leading to disease states. The protein ribonuclease A (RNase A) in the superfamily of RNases cleaves the RNA besides its role in different diseases like autoimmune diseases, and pancreatic disorders. Interaction of CCM with RNase A have been reported along with the possible role of CCM to inhibit the RNase A enzymatic activity. The interaction strength was found to be 104 M-1 order from spectroscopic results. Quenching of RNase A fluorescence by CCM was 104 M-1 order. Non-radiative energy transfer from RNase A (donor) to CCM (acceptor) suggested a distance of 2.42 nm between the donor-acceptor pair. Circular dichroism studies revealed no structural changes in RNase A after binding. Binding-induced conformational variation in protein was observed from synchronous fluorescence studies. Agarose gel electrophoresis revealed a partial inhibition of the RNase A activity by CCM though not significant. Molecular docking and molecular dynamics studies suggested the residues of RNase A involved in the interaction with supporting the experimental finding for the partial inhibition of the enzyme activity. This study may help in designing new CCM analogues or related structures to understand their differential inhibition of the RNase A activity.
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Affiliation(s)
- Bijaya Ketan Sahoo
- Department of Chemistry, School of Science, GITAM Deemed to be University, Hyderabad, 502329, India.
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Elshami FI, Shereef HA, El-Mehasseb IM, Shaban SY, van Eldik R. Hydroxychloroquine-Loaded Chitosan Nanoparticles Induce Anticancer Activity in A549 Lung Cancer Cells: Design, BSA Binding, Molecular Docking, Mechanistic, and Biological Evaluation. Int J Mol Sci 2023; 24:14103. [PMID: 37762406 PMCID: PMC10531786 DOI: 10.3390/ijms241814103] [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: 07/30/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
The current study describes the encapsulation of hydroxychloroquine, widely used in traditional medicine due to its diverse pharmacological and medicinal uses, in chitosan nanoparticles (CNPs). This work aims to combine the HCQ drug with CS NPs to generate a novel nanocomposite with improved characteristics and bioavailability. HCQ@CS NPs are roughly shaped like roadways and have a smooth surface with an average size of 159.3 ± 7.1 nm, a PDI of 0.224 ± 0.101, and a zeta potential of +46.6 ± 0.8 mV. To aid in the development of pharmaceutical systems for use in cancer therapy, the binding mechanism and affinity of the interaction between HCQ and HCQ@CS NPs and BSA were examined using stopped-flow and other spectroscopic approaches, supplemented by molecular docking analysis. HCQ and HCQ@CS NPs binding with BSA is driven by a ground-state complex formation that may be accompanied by a non-radiative energy transfer process, and binding constants indicate that HCQ@CS NPs-BSA was more stable than HCQ-BSA. The stopped-flow analysis demonstrated that, in addition to increasing BSA affinity, the nanoformulation HCQ@CS NPS changes the binding process and may open new routes for interaction. Docking experiments verified the development of the HCQ-BSA complex, with HCQ binding to site I on the BSA structure, primarily with the amino acids, Thr 578, Gln 579, Gln 525, Tyr 400, and Asn 404. Furthermore, the nanoformulation HCQ@CS NPS not only increased cytotoxicity against the A549 lung cancer cell line (IC50 = 28.57 ± 1.72 μg/mL) compared to HCQ (102.21 ± 0.67 μg/mL), but also exhibited higher antibacterial activity against both Gram-positive and Gram-negative bacteria when compared to HCQ and chloramphenicol, which is in agreement with the binding constants. The nanoformulation developed in this study may offer a viable therapy option for A549 lung cancer.
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Affiliation(s)
- Fawzia I. Elshami
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh 33516, Egypt; (F.I.E.); (I.M.E.-M.)
| | - Hadeer A. Shereef
- Clinical Pathology Department, University Hospital, Menoufia University, Shebin El-Kom 32512, Egypt;
| | - Ibrahim M. El-Mehasseb
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh 33516, Egypt; (F.I.E.); (I.M.E.-M.)
| | - Shaban Y. Shaban
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh 33516, Egypt; (F.I.E.); (I.M.E.-M.)
| | - Rudi van Eldik
- Department of Chemistry and Pharmacy, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland
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Ouyang Y, Liang Y, Niu M, Yan J, Chu Q, Zhou M, Li W, Feng N, Wu Q. Structure relationship of non-covalent interactions between lotus seedpod oligomeric procyanidins and glycated casein hydrolysate during digestion. Food Funct 2023; 14:7992-8007. [PMID: 37580964 DOI: 10.1039/d3fo00614j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Procyanidin-amino acid interactions during transmembrane transport cause changes in the structural and physical properties of peptides, which limits further absorption of oligopeptide-advanced glycation end products (AGEs). In this study, glycated casein hydrolysates (GCSHs) were employed to investigate the structure and interaction mechanism of GCSH with lotus seedpod oligomeric procyanidin (LSOPC) complexes in an intestinal environment. LSOPC can interact with GCSH under certain conditions to form hydrogen bonds and hydrophobic interactions to form GCSH-LSOPC complexes. Results showed that procyanidin further leads to the transformation of a GCSH secondary structure and the increase of surface hydrophobicity (H0). The strongest non-covalent interaction between GCSH and (-)-epigallocatechin gallate (EGCG) was due to the polyhydroxy structure of EGCG. Binding site analysis showed that EGCG binds to the internal cavity of P1 to maintain the relative stability of the binding conformation. The antioxidant capacity of GCSH was remarkably elevated by GCSH-LSOPC. This study will provide a new reference for the accurate control of oligopeptide-AGEs absorption by LSOPC in vivo.
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Affiliation(s)
- Yu Ouyang
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, China.
- Agricultural College, Hubei Three Gorges Polytechnic, Yichang 443000, P.R. China
| | - Yinggang Liang
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, China.
| | - Mengyao Niu
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, China.
| | - Jia Yan
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, China.
| | - Qianmei Chu
- Xiangyang Academy of Agricultural Sciences, Xiangyang, Hubei 441057, P.R. China.
| | - Mengzhou Zhou
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, China.
| | - Wei Li
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, China.
| | - Nianjie Feng
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, China.
| | - Qian Wu
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, China.
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Lavanya K, Babu PV, Bodapati ATS, Reddy RS, Madku SR, Sahoo BK. Binding of dicoumarol analog with DNA and its antioxidant studies: A biophysical insight by in-vitro and in-silico approaches. Int J Biol Macromol 2023:125301. [PMID: 37315662 DOI: 10.1016/j.ijbiomac.2023.125301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/16/2023]
Abstract
DNA is the major target for a number of pharmaceutical drugs. The interaction of drug molecules with DNA plays a major role in pharmacokinetics and pharmacodynamics. Bis-coumarin derivatives have diverse biological properties. Here, we have explored the antioxidant activity of 3,3'-Carbonylbis (7-diethylamino coumarin) (CDC) using DPPH, H2O2, and superoxide scavenging studies followed by its binding mode in calf thymus-DNA (CT-DNA) using several biophysical methods including molecular docking. CDC exhibited comparable antioxidant activity to standard ascorbic acid. The UV-Visible and fluorescence spectral variations indicate the CDC-DNA complex formation. The binding constant in the range of 104 M-1 was obtained from spectroscopic studies at room temperature. The fluorescence quenching of CDC by CT-DNA suggested a quenching constant (KSV) of 103 to 104 M-1 order. Thermodynamic studies at 303, 308, and 318 K revealed the observed quenching as a dynamic process besides the spontaneity of the interaction with negative free energy change. Competitive binding studies with site markers like ethidium bromide, methylene blue, and Hoechst 33258 reflect CDC's groove mode of interaction. The result was complemented by DNA melting study, viscosity measurement, and KI quenching studies. The ionic strength effect was studied to interpret the electrostatic interaction and found its insignificant role in the binding. Molecular docking studies suggested the binding location of CDC within the minor groove of CT-DNA, complementing the experimental result.
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Affiliation(s)
- K Lavanya
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India
| | - Pratap Veeresh Babu
- Department of Pharmacology, Gokaraju Rangaraju College of Pharmacy, Bachupally, Hyderabad, Telangana 500090, India
| | - Anna Tanuja Safala Bodapati
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India; Chemistry Division, BS&H Department, BVRIT College of Engineering for Women, Hyderabad 500090, India
| | - Ragaiahgari Srinivas Reddy
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India; Department of Chemistry, B V Raju Institute of Technology (BVRIT), Narsapur 502313, India
| | - Shravya Rao Madku
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India; Department of Chemistry, St. Francis College for Women, Hyderabad 500016, India
| | - Bijaya Ketan Sahoo
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India.
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Tanuja Safala Bodapati A, Srinivas Reddy R, Lavanya K, Rao Madku S, Ketan Sahoo B. A comprehensive biophysical and theoretical study on the binding of dexlansoprazole with human serum albumin. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Povinelli APR, de Carvalho Bertozo L, Zazeri G, Ximenes VF. A flaw in applying the FRET technique to evaluate the distance between ligands and tryptophan residues in human serum albumin: Proposal of correction. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 242:112693. [PMID: 36947916 DOI: 10.1016/j.jphotobiol.2023.112693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/23/2023] [Accepted: 03/08/2023] [Indexed: 03/15/2023]
Abstract
Due to its primordial function as a drug carrier, human serum albumin (HSA) is extensively studied regarding its binding affinity with developing drugs. Förster resonance energy transfer (FRET) is frequently applied as a spectroscopic molecular ruler to measure the distance between the binding site and the ligand. In this work, we have shown that most of the published results that use the FRET technique to estimate the distance from ligands to the binding sites do not corroborate the crystallography data. By comparing the binding affinity of dansyl-proline with HSA and ovotransferrin, we demonstrated that FRET explains the quenching provoked by the interaction of ligands in albumin. So, why does the distance calculation via FRET not corroborate the crystallography data? We have shown that this inconsistency is related to the fact that a one-to-one relationship between donor and acceptor is not present in most experiments. Hence, the quenching efficiency used for calculating energy transfer depends on distance and binding constant, which is inconsistent with the correct application of FRET as a molecular ruler. We have also shown that the indiscriminate attribution of 2/3 to the relative orientation of transition dipoles of the acceptor and donor (κ2) generates inconsistencies. We proposed corrections based on the experimental equilibrium constant and theoretical orientation of transition dipoles to correct the FRET results.
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Affiliation(s)
- Ana Paula Ribeiro Povinelli
- Federal Institute of Education, Science and Technology of Mato Grosso, Campo Novo do Parecis, 78360-000, MT, Brazil
| | - Luiza de Carvalho Bertozo
- Department of Chemistry, Faculty of Sciences, UNESP - São Paulo State University, 17033-360 Bauru, SP, Brazil
| | - Gabriel Zazeri
- Federal Institute of Education, Science and Technology of Mato Grosso, Campo Novo do Parecis, 78360-000, MT, Brazil
| | - Valdecir Farias Ximenes
- Department of Chemistry, Faculty of Sciences, UNESP - São Paulo State University, 17033-360 Bauru, SP, Brazil.
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Chen J, Bian X, Zhang S, Yang G. Study on the interaction of two quinazoline derivatives as novel PI3K/mTOR dual inhibitors and anticancer agents to human serum albumin utilizing spectroscopy and docking. LUMINESCENCE 2023; 38:260-268. [PMID: 36648974 DOI: 10.1002/bio.4444] [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: 07/13/2022] [Revised: 11/25/2022] [Accepted: 01/15/2023] [Indexed: 01/18/2023]
Abstract
Interactions of human serum albumin (HSA) with two structurally similar quinazoline derivatives, S1 and S2 , which are potential anticancer drugs acting on PI3K/mTOR targets, were investigated in vitro utilizing multiple spectroscopy as well as molecular docking. The fluorescence quenching study demonstrated that HSA fluorescence could be statically quenched by S1 and S2 through the formation of an HSA-drug complex. Furthermore, the details of the binding site number, binding constant, as well as the thermodynamic parameters, were estimated at 298, 303, and 310 K. The results revealed that hydrogen bond interactions, as well as van der Waals forces, were the predominant factors responsible for binding HSA to S1 or S2 . Synchronous fluorescence and ultraviolet (UV) absorption spectra suggested that S1 and S2 had little effect on the polarity of the microenvironment and conformation of HSA. Energy transfer from HSA to S1 or S2 most probably occurred. The docking study revealed that S1 and S2 were able to bind to the hydrophobic cavity that was located in the HSA subdomain IIA and formed varying numbers of hydrogen bonds with amino acid residues nearby. Due to the subtle difference in the chemical structure, the binding of S1 and S2 to HSA was slightly different.
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Affiliation(s)
- Jiangang Chen
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Xiaoli Bian
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Sanqi Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Guangde Yang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
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Zhou Z, Cen J, Wang H, Sun Y, Yang L. Interactions of CdSe and CdSe@ZnS quantum dots with transferrin and effects on the iron ions release. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-023-02733-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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12
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Madku SR, Sahoo BK, Lavanya K, Reddy RS, Bodapati ATS. DNA binding studies of antifungal drug posaconazole using spectroscopic and molecular docking methods. Int J Biol Macromol 2023; 225:745-756. [PMID: 36414083 DOI: 10.1016/j.ijbiomac.2022.11.137] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/15/2022] [Accepted: 11/10/2022] [Indexed: 11/21/2022]
Abstract
The binding studies of DNA with small molecules have been an emerging field of research all the time since DNA as the genetic material is a major biological target for various drugs. Interpretation of small molecule-DNA binding helps in understanding their interactions with designing new drugs of greater medicinal activity. Posaconazole is an antifungal drug in the class of triazoles which are known to possess numerous pharmacological properties. In this work, the nature of the binding of posaconazole with calf-thymus DNA has been studied using spectroscopic techniques and molecular docking studies. A binding constant of the order of 103 M-1 was observed from UV-visible and fluorescence studies for the interaction between posaconazole and calf-thymus DNA. The fluorescence property of posaconazole was found to be quenched by calf-thymus DNA with a quenching constant of the order of 103 M-1. Competitive displacement of ethidium bromide and Hoechst 33258 by posaconazole using fluorescence technique suggested minor groove binding of posaconazole in calf-thymus DNA. Confirmation of the binding mode was further complemented by the viscosity measurement and DNA melting studies followed by KI quenching experiments. The studies on the effect of ionic strength on the binding suggested a possible role of electrostatic force in the interaction. Molecular docking studies reflected a crescent shape of the posaconazole within the minor groove of calf-thymus DNA validating the experimental findings showing the residues involved in the interaction.
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Affiliation(s)
- Shravya Rao Madku
- Department of Chemistry, St. Francis College for Women, Hyderabad 500016, India; Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India
| | - Bijaya Ketan Sahoo
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India.
| | - K Lavanya
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India; Department of H&S (Chemistry), Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad 500090, India
| | - Ragaiahgari Srinivas Reddy
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India; Department of Chemistry, B V Raju Institute of Technology (BVRIT), Narsapur 502313, India
| | - Anna Tanuja Safala Bodapati
- Department of Chemistry, GITAM School of Science, GITAM Deemed to be University Hyderabad Campus, 502329, India; Chemistry Division, BS&H Department, BVRIT College of Engineering for Women, Hyderabad 500090, India
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Yue Y, Wang Y, Tu Q, Xu Y, Zhang Y, Tang Q, Liu J. A comprehensive insight into the effects of punicalagin on pepsin: Multispectroscopy and simulations methods. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120194] [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]
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14
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Modulation of the binding ability to biomacromolecule, cytotoxicity and cellular imaging property for ionic liquid mediated carbon dots. Colloids Surf B Biointerfaces 2022; 216:112552. [PMID: 35580459 DOI: 10.1016/j.colsurfb.2022.112552] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/01/2022] [Accepted: 05/06/2022] [Indexed: 11/22/2022]
Abstract
For the preparation of carbon dots (CDs), a variety of carbon sources and synthetic protocols are available which endow CDs with variable and unpredictable properties. In the present study, three CDs were developed with ionic liquid 1-butyl-3-methylimidazolium dicyanamide as the precursor through ethanol-thermal and hydrothermal strategies, termed as E-CDs and H-CDs, respectively. The features of these carbon dots, i.e., their physicochemical and optical properties, their interactions with bovine serum albumin (BSA) as well as their imaging capability were investigated with respect to the CDs prepared with microwave assisted approach (W-CDs). E-CDs and H-CDs were demonstrated to exhibit similar framework structures and optical properties, and they exhibited larger particle-sizes than that of W-CDs. In addition, the increase of ethanol-thermal and hydrothermal reaction time strengthened the quantum yields of the CDs and promoted their binding capability with BSA. E-CDs and H-CDs showed similar cytotoxicity on normal (LX-2) and cancer (SK-Hep-1) cells. We further found that these CDs may readily enter the cells within 5 min, while the fluorescence of hydrophilic E-CDs and H-CDs was very weak with respect to that of hydrophobic W-CDs in cell imaging. On the other hand, all the CDs exhibited little impact on the level of intracellular reactive oxygen species. The present study is conducive to guide the preparation of suitable carbon dots for different application scenarios.
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rasouli Z, ghavami R. Fading of nanocurcumin-based configured biosensor array for differentiation of carrier proteins in biological fluids. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Meng X, Nan G, Shi B, Li W, Liu H, Lin R, Yang G, Zheng S. Investigation on the interaction between myricetin and dihydromyricetin with trypsin, α-chymotrypsin, lysozyme by spectroscopy and molecular docking methods. LUMINESCENCE 2022; 37:810-821. [PMID: 35289053 DOI: 10.1002/bio.4225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/07/2022] [Accepted: 03/09/2022] [Indexed: 11/09/2022]
Abstract
The interaction between myricetin and dihydromyricetin with trypsin, α-chymotrypsin and lysozyme was investigated using multispectral and molecular docking methods. The results of fluorescence quenching revealed that myricetin and dihydromyricetin could quench the intrinsic fluorescence of three different proteinases through a static quenching procedure. The binding constant and number of binding sites at different temperatures were measured. The thermodynamic parameters obtained at different temperatures showed van der Waals' interactions and hydrogen bonds played the main roles in the interaction of myricetin with trypsin and lysozyme, hydrophobic force was dominant both in myricetin with α-chymotrypsin interaction and dihydromyricetin with trypsin and lysozyme interaction, as for the electrostatic forces, it was the mainly driving force in dihydromyricetin binding to α-chymotrypsin. There was non-radiative energy transfer between three proteinases and myricetin or dihydromyricetin with high probability. The microenvironment of trypsin, α-chymotrypsin and lysozyme is changed. The docking studies revealed that myricetin and dihydromyricetin entered the hydrophobic cavity of three proteinases and formed hydrogen bond. The binding affinity of myricetin or dihydromyricetin is difference with the trypsin, α-chymotrypsin and lysozyme due to the different molecular structure.
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Affiliation(s)
- Xianxin Meng
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Guanjun Nan
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Bowen Shi
- Anesthesia Operation Center, Xi'an International Medical Center, Shaanxi, P.R. China
| | - Wanlu Li
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Henglin Liu
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Rong Lin
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Guangde Yang
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Shaohua Zheng
- Department of Anesthesiology and Operation, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, P.R. China
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Shahabadi N, Akbari A, Karampour F, Falsafi M, Zendehcheshm S. In vitro cytotoxicity, antibacterial activity and HSA and ct-DNA interaction studies of chlorogenic acid loaded on γ-Fe 2O 3@SiO 2 as new nanoparticles. J Biomol Struct Dyn 2022; 41:2300-2320. [PMID: 35120416 DOI: 10.1080/07391102.2022.2030799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In this study, nanoparticles with both anticancer and antibacterial features were synthesized through loading chlorogenic acid (CGA) of essential oils on magnetic nanoparticles (MNPs). Characterization of γ-Fe2O3@SiO2-CGA MNPs was performed using Fourier transform infrared (FT-IR) spectroscopy and transmission electron microscopy (TEM) that show effective coating of the MNPs with SiO2 and CGA ligand and spherical shape of the nanoparticles with a mean diameter of 16 nm, respectively. The cytotoxicity study demonstrated that γ-Fe2O3@SiO2-CGA MNPs had fewer toxic effects on normal cells (Huvec) than on cancerous cells (U-87 MG, A-2780 and A-549), and could be a new potential candidate for use in biological and pharmaceutical applications. The interaction of calf thymus deoxyribonucleic acid (ct-DNA) with γ-Fe2O3@SiO2-CGA MNPs indicated that the anticancer activity might be associated with the DNA binding properties of γ-Fe2O3@SiO2-CGA MNPs. Moreover, the interaction of γ-Fe2O3@SiO2-CGA MNPs with human serum albumin (HSA) suggests that the native conformation of HSA was preserved at the level of secondary structure, indicating that the γ-Fe2O3@SiO2-CGA MNPs do not show any cytotoxicity effect when they are injected into the blood. Antibacterial tests were performed and represented γ-Fe2O3@SiO2-CGA MNPs attained better antibacterial function than CGA as free.
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Affiliation(s)
- Nahid Shahabadi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran.,Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Akbari
- Chemistry Department, Payame Noor University, Tehran, Iran
| | | | | | - Saba Zendehcheshm
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
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Shahabadi N, Mahdavi M. Green synthesized silver nanoparticles obtained from Stachys schtschegleevii extract: ct-DNA interaction and in silico and in vitro investigation of antimicrobial activity. J Biomol Struct Dyn 2022; 41:2175-2188. [PMID: 35048781 DOI: 10.1080/07391102.2022.2028680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The aim of this study was the synthesis of Ag nanoparticles (AgNPs) by using Stachys schtschegleevii extract and checking the composition, morphology and size of the green synthesized AgNPs using the analytical techniques (UV-vis, DLS, zeta potential, SEM-EDX, FT-IR and TEM). The TEM images of AgNPs represent a smooth surface and are spherical in shape with an average particle size of 31.43 nm. The antioxidant activities of green synthesized AgNPs were appraised by radical scavenging 1, 1-diphenyl-2-picrylhydrazyl test and the green synthesized AgNPs showed a strong ability to scavenge free radicals. In addition, AgNPs displayed a remarkable antibacterial and antifungal activity against various microorganisms. We employed molecular docking to investigate the AgNPs interaction with Dihydrofolate reductase (DHFR) of Escherichia coli, Staphylococcus aureus, and Candida albicans and there is a good agreement between molecular docking and our experimental results. The result of ct-DNA-AgNPs interaction demonstrated that AgNPs can bind to ct-DNA through partial intercalation binding mode.Communicated by Ramaswamy H. Sarma.
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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
| | - Mohammad Mahdavi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
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19
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Zangeneh Monfared F, Shahabadi N, Mahmoudi Hashemi M, Meibodi FS, Mirjafari Z. Studies of Ponceau 4R food colorant and zinc oxide nanoparticles containing it interactions with DNA and evaluation of their antimicrobial activity. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Nahid Shahabadi
- Department of Inorganic Chemistry, Faculty of Chemistry Razi University Kermanshah Iran
- Center of Medical Biology Research (MBRC) Kermanshah University of Medical Sciences Kermanshah Iran
| | | | - Farhat Sadat Meibodi
- Department of Organic Chemistry, Faculty of Chemistry Razi University Kermanshah Iran
| | - Zohreh Mirjafari
- Department of Chemistry, Science and Research Branch Islamic Azad University Tehran Iran
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20
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Qi H, Wang Y, Wang X, Su L, Wang Y, Wang S. The different interactions of two anticancer drugs with bovine serum albumin based on multi-spectrum method combined with molecular dynamics simulations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 259:119809. [PMID: 33965887 DOI: 10.1016/j.saa.2021.119809] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 04/01/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
Paclitaxel is the best natural anticancer drug and artemisinin also has anticancer effect. In this study, the interactions between BSA and these two drugs were determined in PBS (pH 7.40) by multi-spectroscopic method and molecular dynamics (MD) simulations. The results showed that paclitaxel and artemisinin could statically quench the BSA fluorescence when the complexes were formed and the stoichiometric ratio of BSA-drugs was 1:1. Particularly, the BSA-paclitaxel complex was more stable than BSA-artemisinin complex. During the binding, the surroundings around Trp residue site was largely affected than Tyr site, especially Trp 214 to a more hydrophobic environment. In addition, the binding processes were mainly spontaneous through electrostatic force interaction. In summary, we concluded that the free drug of paclitaxel in blood was low and duration time of artemisinin was shorter.
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Affiliation(s)
- Haiyan Qi
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, PR China; Heilongjiang Industrial Hemp Processing Technology Innovation Center, Qiqihar University, No. 42, Wenhua Street, Qiqihar, PR China.
| | - Yan Wang
- Key Laboratory of Theoretical Chemistry of Environment Ministry of Education, School of Chemistry, South China Normal University, No. 378 Waihuan West Road, Higher Education Mega Center, Panyu District, Guangzhou 510006, PR China
| | - Xiuwen Wang
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, PR China
| | - Liqiang Su
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, PR China
| | - Ying Wang
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, PR China
| | - Shu Wang
- College of Chemistry and Chemical Engineering, Qiqihar University, No. 42, Wenhua Street, Qiqihar, PR China
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21
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Zhu S, Ding L, Zhou J, Tong S, Meng J, Li S, Liu C, Cheng Z, Mario G, Li W, Liu Y. Interaction thermodynamics studies of different surface-modified ZnSe QDs with BSA by spectroscopic and molecular simulation methods. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116765] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Rahman AJ, Kaur L, Pathak M, Singh A, Verma P, Singhal R, Kumar V, Ojha H. Spectroscopic studies of binding interactions of 2-chloroethylphenyl sulphide with bovine serum albumin. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117144] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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23
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Sehrawat H, Kumar N, Sood D, Kumar L, Tomar R, Chandra R. Unraveling the interaction of an opium poppy alkaloid noscapine ionic liquid with human hemoglobin: Biophysical and computational studies. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116710] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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Zhu ZM, Zhang WJ. Spectroscopic Analysis of the Interaction Between the Antiparasitic Drug Nitazoxanide and Bovine Serum Albumin. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY, TRANSACTIONS A: SCIENCE 2021. [DOI: 10.1007/s40995-021-01102-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Zangeneh monfared F, Shahabadi N, Mahmoudi Hashemi M, Sadat Meibodi F, Mirjafari Z. Zinc oxide nanoparticles coated with food colorant Brilliant black: Synthesis, characterization, and comparative DNA interaction and antibacterial activity studies. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | - Nahid Shahabadi
- Inorganic Chemistry Department, Faculty of Chemistry Razi University Kermanshah Iran
- Medical Biology Research Center (MBRC) Kermanshah University of Medical Sciences Kermanshah Iran
| | | | - Farhat Sadat Meibodi
- Department of Organic Chemistry, Faculty of Chemistry Razi University Kermanshah Iran
| | - Zohreh Mirjafari
- Department of Chemistry, Science and Research Branch Islamic Azad University Tehran Iran
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26
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Zhang H, Zhang Y, Huang Y, Wu L, Guo Q, Wang Q, Liang L, Nishinari K, Zhao M. Interaction between bovine serum albumin and chitooligosaccharides: I. Molecular mechanism. Food Chem 2021; 358:129853. [PMID: 33933970 DOI: 10.1016/j.foodchem.2021.129853] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 04/06/2021] [Accepted: 04/11/2021] [Indexed: 01/27/2023]
Abstract
The interaction between chitooligosaccharides (COS2-6) and bovine serum albumin (BSA) is worthy of investigation, which provides support for improving the physical properties (gelling, foaming, and emulsifying) of food proteins via COS addition and in vivo research on COS bioactivity. Component analysis indicated that COS2 and COS3 were enriched in the COS2-6-BSA precipitate. The fluorescence binding constant (1.73 × 103 M-1), ΔG of isothermal titration calorimetry (-6.7 kJ/mol), and the predicted ΔG of molecular docking (-10 to -5 kJ/mol) confirmed the weak interaction of COS2-6-BSA. Quartz crystal microbalance dissipation and molecular docking indicated that electrostatic and hydrophobic interactions were the main stabilization forces. Molecular docking showed that the predicted ΔG of COS2-6 to BSA decreased with the increasing degree of polymerization. This work clarified the weak and selective interaction between COS2-6 and BSA via various methods, which is useful for the food application of COS.
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Affiliation(s)
- Hui Zhang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei International Scientific and Technological Cooperation Base of Food Hydrocolloids, Wuhan 430068, China
| | - Yanzhen Zhang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei International Scientific and Technological Cooperation Base of Food Hydrocolloids, Wuhan 430068, China
| | - Yongqi Huang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei International Scientific and Technological Cooperation Base of Food Hydrocolloids, Wuhan 430068, China
| | - Ling Wu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei International Scientific and Technological Cooperation Base of Food Hydrocolloids, Wuhan 430068, China
| | - Qianwan Guo
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei International Scientific and Technological Cooperation Base of Food Hydrocolloids, Wuhan 430068, China
| | - Qi Wang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei International Scientific and Technological Cooperation Base of Food Hydrocolloids, Wuhan 430068, China
| | - Li Liang
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Katsuyoshi Nishinari
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei International Scientific and Technological Cooperation Base of Food Hydrocolloids, Wuhan 430068, China
| | - Meng Zhao
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Key Laboratory of Industrial Microbiology, Hubei International Scientific and Technological Cooperation Base of Food Hydrocolloids, Wuhan 430068, China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China.
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Shahabadi N, Zendehcheshm S, Khademi F. Selenium nanoparticles: Synthesis, in-vitro cytotoxicity, antioxidant activity and interaction studies with ct-DNA and HSA, HHb and Cyt c serum proteins. ACTA ACUST UNITED AC 2021; 30:e00615. [PMID: 33948440 PMCID: PMC8080047 DOI: 10.1016/j.btre.2021.e00615] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 03/29/2021] [Accepted: 04/06/2021] [Indexed: 12/18/2022]
Abstract
Spherical SeNPs with average size 134 nm were synthesized employing Vitamin C. The synthesized SeNPs represented great antioxidant and anticancer activity. The interaction of SeNPs with ct-DNA, HSA, HHb and Cyt c was investigated. Nano-selenium can bind to ct-DNA through partial intercalation binding mode. HSA, HHb and Cyt c could keep their biological activity even in the presence of Nano-selenium.
The aim of this study was the synthesis of selenium nanoparticles (SeNPs) employing vitamin C as a biocompatible and low toxic reducing agent. The synthesized selenium nanoparticles were characterized by using UV–vis, FT-IR, SEM-EDX, TEM, DLS, and zeta potential measurements. The results of the DPPH free radical scavenging assay demonstrate that this synthesized nano-selenium has strong potentials to scavenge the free radicals and cytotoxicity against MCF-7 and Raji Burkitt's lymphoma cancer cell lines. The interaction of calf thymus DNA (ct-DNA) with SeNPs indicated that the anticancer activity might be associated with the DNA-binding properties of nano-selenium. Finally, it was found that the synthesized nano-selenium can bind to the most important blood proteins such as human serum albumin (HSA), human hemoglobin (HHb), and Cytochrome c (Cyt c). The results showed that the secondary structure of these proteins remains unchanged, suggesting that the synthesized nano-selenium could be employed as a carrier in the drug delivery system without any cytotoxicity effect.
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Affiliation(s)
- Nahid Shahabadi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran.,Center of Medical Biology Research (MBRC) Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Saba Zendehcheshm
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran.,Center of Medical Biology Research (MBRC) Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fatemeh Khademi
- Center of Medical Biology Research, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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28
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Akhuli A, Chakraborty D, Agrawal AK, Sarkar M. Probing the Interaction of Bovine Serum Albumin with Copper Nanoclusters: Realization of Binding Pathway Different from Protein Corona. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1823-1837. [PMID: 33502208 DOI: 10.1021/acs.langmuir.0c03176] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
With an aim to understand the interaction mechanism of bovine serum albumin (BSA) with copper nanoclusters (CuNCs), three different types CuNCs having chemically different surface ligands, namely, tannic acid (TA), chitosan, and cysteine (Cys), have been fabricated, and investigations are carried out in the absence and presence of protein (BSA) at ensemble-averaged and single-molecule levels. The CuNCs, capped with different surface ligands, are consciously chosen so that the role of surface ligands in the overall protein-NCs interactions is clearly understood, but, more importantly, to find whether these CuNCs can interact with protein in a new pathway without forming the "protein corona", which otherwise has been observed in relatively larger nanoparticles when they are exposed to biological fluids. Analysis of the data obtained from fluorescence, ζ-potential, and ITC measurements has clearly indicated that the BSA protein in the presence of CuNCs does not attain the binding stoichiometry (BSA/CuNCs > 1) that is required for the formation of "protein corona". This conclusion is further substantiated by the outcome of the fluorescence correlation spectroscopy (FCS) study. Further analysis of data and thermodynamic calculations have revealed that the surface ligands of the CuNCs play an important role in the protein-NCs binding events, and they can alter the mode and thermodynamics of the process. Specifically, the data have demonstrated that the binding of BSA with TA-CuNCs and Chitosan-CuNCs follows two types of binding modes; however, the same with Cys-CuNCs goes through only one type of binding mode. Circular dichroism (CD) measurements have indicated that the basic structure of BSA remains almost unaltered in the presence of CuNCs. The outcome of the present study is expected to encourage and enable better application of NCs in biological applications.
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Affiliation(s)
- Amit Akhuli
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhimpur-Padanpur, Jatni, Khorda, Bhubaneswar 752050, Odisha, India
| | - Debabrata Chakraborty
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhimpur-Padanpur, Jatni, Khorda, Bhubaneswar 752050, Odisha, India
| | - Aman Kumar Agrawal
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhimpur-Padanpur, Jatni, Khorda, Bhubaneswar 752050, Odisha, India
| | - Moloy Sarkar
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhimpur-Padanpur, Jatni, Khorda, Bhubaneswar 752050, Odisha, India
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Song C, Zhang KX, Wang XJ, Zhao S, Wang SG. Effects of natural organic matter on the photolysis of tetracycline in aquatic environment: Kinetics and mechanism. CHEMOSPHERE 2021; 263:128338. [PMID: 33297264 DOI: 10.1016/j.chemosphere.2020.128338] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/06/2020] [Accepted: 09/11/2020] [Indexed: 06/12/2023]
Abstract
The residues of tetracycline in environment have raised increasing concern for the deleterious impact on ecological and human health. Natural organic matter (NOM), ubiquitous in natural waters, is unavoidable to encounter tetracycline, which might affect the fate of tetracycline in aquatic environment. In this study, we investigated the effect of natural organic matter (NOM) on the photolytic fate of tetracycline (TC). The photolysis kinetics of TC were evaluated with two representative NOM, tannic acid (TA) and gallic acid (GA). The presence of TA and GA obviously inhibited the removal of TC under UV irradiation with photolysis rate constant at 0.067 h-1 and 0.071 h-1, respectively, which were 32.3% and 28.3% less than that without TA and GA (0.099 h-1). Furthermore, NOM exhibited different impacts on both indirect photolysis and direct photolysis. NOM promoted the formation of hydroxyl radical, induced the generation of triplet-excited state NOM and thus greatly enhanced the indirect photolysis of TC. However, direct photolysis was almost completely inhibited by NOM via inner filter effect and interacting with TC to form ground-state complex with low photoreactive. Moreover, similar intermediates were detected in the presence and absence of NOM, indicating that NOM exhibited limited influence on the degradation pathways of TC. This study reveals the multiple roles of NOM on tetracycline photolysis, contributing to better understand the photolytic fate of antibiotics in natural waters.
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Affiliation(s)
- Chao Song
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, 266237, China
| | - Kai-Xin Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, 266237, China
| | - Xiao-Juan Wang
- Shandong Academy for Environmental Planning, Jinan, Shandong, 250101, China
| | - Shan Zhao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, 266237, China
| | - Shu-Guang Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong, 266237, China.
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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]
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31
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Đukić MB, Jeremić MS, Filipović IP, Klisurić OR, Kojić VV, Jakimov DS, Jelić RM, Onnis V, Matović ZD. Synthesis, characterization, HSA/DNA interactions and antitumor activity of new [Ru(η 6-p-cymene)Cl 2(L)] complexes. J Inorg Biochem 2020; 213:111256. [PMID: 32980642 DOI: 10.1016/j.jinorgbio.2020.111256] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 12/18/2022]
Abstract
Three new ruthenium(II) complexes were synthesized from different substituted isothiazole ligands 5-(methylamino)-3-pyrrolidine-1-ylisothiazole-4-carbonitrile (1), 5-(methylamino)-3-(4-methylpiperazine-1-yl)isothiazole-4-carbonitrile (2) and 5-(methylamino)-3-morpholine-4-ylisothiazole-4-carbonitrile (3): [Ru(η6-p-cymene)Cl2(L1)]·H2O (4), [Ru(η6-p-cymene)Cl2(L2)] (5) and [Ru(η6-p-cymene)Cl2(L3)] (6). All complexes were characterized by IR, UV-Vis, NMR spectroscopy, and elemental analysis. The molecular structures of all ligands and complexes 4 and 6 were determined by an X-ray. The results of the interactions of CT-DNA (calf thymus deoxyribonucleic acid) and HSA (human serum albumin) with ruthenium (II) complexes reveal that complex 4 binds well to CT-DNA and HSA. Kinetic and thermodynamic parameters for the reaction between complex and HSA confirmed the associative mode of interaction. The results of Quantum mechanics (QM) modelling and docking experiments toward DNA dodecamer and HSA support the strongest binding of the complex 4 to DNA major groove, as well as its binding to IIa domain of HSA with the lowest ΔG energy, which agrees with the solution studies. The modified GOLD docking results are indicative for Ru(p-cymene)LCl··(HSA··GLU292) binding and GOLD/MOPAC(QM) docking/modelling of DNA/Ligand (Ru(II)-N(7)dG7) covalent binding. The cytotoxic activity of compounds was evaluated by MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide) assay. Neither of the tested compounds shows activity against a healthy MRC-5 cell line while the MCF-7 cell line is the most sensitive to all. Compounds 3, 4 and 5 were about two times more active than cisplatin, while the antiproliferative activity of 6 was almost the same as with cisplatin. Flow cytometry analysis showed the apoptotic death of the cells with a cell cycle arrest in the subG1 phase.
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Affiliation(s)
- Maja B Đukić
- University of Kragujevac, Faculty of Science, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac, Serbia
| | - Marija S Jeremić
- University of Kragujevac, Faculty of Science, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac, Serbia
| | - Ignjat P Filipović
- University of Kragujevac, Faculty of Science, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac, Serbia
| | - Olivera R Klisurić
- University of Novi Sad, Faculty of Sciences, Department of Physics, Trg Dositeja Obradovića 4, 21000 Novi Sad, Serbia
| | - Vesna V Kojić
- Oncology Institute of Vojvodina, Faculty of Medicine, University of Novi Sad, Put Doktora Goldmana 4, 21204 Sremska Kamenica, Serbia
| | - Dimitar S Jakimov
- Oncology Institute of Vojvodina, Faculty of Medicine, University of Novi Sad, Put Doktora Goldmana 4, 21204 Sremska Kamenica, Serbia
| | - Ratomir M Jelić
- University of Kragujevac, Faculty of Medical Sciences, Department of Pharmacy, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Valentina Onnis
- Department of Life and Environmental Sciences, Unit of Pharmaceutical, Pharmacological and Nutraceutical Sciences, University of Cagliari, University Campus, S.P. n° 8, Km 0.700, I-09042 Monserrato (CA), Italy
| | - Zoran D Matović
- University of Kragujevac, Faculty of Science, Department of Chemistry, Radoja Domanovića 12, 34000 Kragujevac, Serbia.
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32
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Stojanović SD, Nićiforović JM, Živanović SM, Odović JV, Jelić RM. Spectroscopic studies on the drug–drug interaction: the influence of fluoroquinolones on the affinity of tigecycline to human serum albumin and identification of the binding site. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02627-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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33
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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
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Sarmah S, Pahari S, Das S, Belwal VK, Jana M, Singha Roy A. Non-enzymatic glycation of human serum albumin modulates its binding efficacy towards bioactive flavonoid chrysin: A detailed study using multi-spectroscopic and computational methods. J Biomol Struct Dyn 2020; 39:476-492. [PMID: 31900044 DOI: 10.1080/07391102.2019.1711196] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The non-enzymatic glycation of plasma proteins by reducing sugars have important consequences on the conformational and functional properties of protein. The formation of advanced glycation end products (AGEs) is responsible for cell death and other pathological conditions. We have synthesized the glycated human serum albumin (gHSA) and characterized the same by using differential spectroscopic measurements. The aim of the present study is to determine the effect of glycation on the binding of human serum albumin (HSA) with bioactive flavonoid chrysin, which possesses anti-cancer, anti-inflammatory and anti-oxidant activities. The interaction of chrysin with HSA and gHSA was studied using multi-spectroscopic, molecular docking and molecular dynamics (MD) simulation techniques. Chrysin quenched the intrinsic fluorescence of both HSA and gHSA by static quenching mechanism. The value of the binding constant (Kb) for the interaction of HSA-chrysin complex (4.779 ± 0.623 × 105 M-1 at 300 K) was found to be higher than that of gHSA-chrysin complex (2.206 ± 0.234 × 105 M-1 at 300 K). Hence, non-enzymatic glycation of HSA significantly reduced its binding affinity towards chrysin. The % α-helicity of HSA was found to get enhanced upon binding with chrysin, and minimal changes were observed for the gHSA-chrysin complex. Site marker probe studies indicated that chrysin binds to subdomain IIA and IIIA of both HSA and gHSA. The results from molecular docking and MD simulation studies correlated well with the experimental findings. Electrostatic interactions followed by hydrogen bonding and hydrophobic interactions played major roles in the binding process. These observations may have some useful insights into the field of pharmaceutics.
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Affiliation(s)
- Sharat Sarmah
- Department of Chemistry, National Institute of Technology, Meghalaya, Shillong, India
| | - Somdev Pahari
- Molecular Simulation Laboratory, Department of Chemistry, National Institute of Technology, Rourkela, India
| | - Sourav Das
- Department of Chemistry, National Institute of Technology, Meghalaya, Shillong, India
| | - Vinay Kumar Belwal
- Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Madhurima Jana
- Molecular Simulation Laboratory, Department of Chemistry, National Institute of Technology, Rourkela, India
| | - Atanu Singha Roy
- Department of Chemistry, National Institute of Technology, Meghalaya, Shillong, India
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35
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Zheng H, Wan P, Qi S, Chen H, Zhai H. Investigating the interaction between DNA-templated gold nanoclusters and HSA via spectroscopy. NEW J CHEM 2020. [DOI: 10.1039/d0nj02075c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold nanoclusters (AuNCs) have attracted great attention in bioimaging and drug transportation due to their biocompatibility, but a few studies have shown their potential toxicity.
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Affiliation(s)
- Huanhuan Zheng
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Pengfei Wan
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Shengda Qi
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Hongli Chen
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Honglin Zhai
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
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36
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Yu X, Tian N, Huang F, Huang X, Liu C, Gao S, Yang Z, Wu Y. Evaluating the role of ionic liquids (ILs) in the crystallization of lysozyme. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.112018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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37
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The structure-activity relationship of hydrophilic carbon dots regulated by the nature of precursor ionic liquids. J Colloid Interface Sci 2019; 554:722-730. [DOI: 10.1016/j.jcis.2019.07.058] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/21/2019] [Accepted: 07/22/2019] [Indexed: 11/22/2022]
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38
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Shahabadi N, Abbasi AR, Moshtkob A, Hadidi S. Design, synthesis and DNA interaction studies of new fluorescent platinum complex containing anti-HIV drug didanosine. J Biomol Struct Dyn 2019; 38:2837-2848. [DOI: 10.1080/07391102.2019.1658643] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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
| | - Amir Reza Abbasi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
- Institute of Nano Science and Nano Technology, Razi University, Kermanshah, Iran
| | - Ayda Moshtkob
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
| | - Saba Hadidi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
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39
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Araiza-Calahorra A, Sarkar A. Pickering emulsion stabilized by protein nanogel particles for delivery of curcumin: Effects of pH and ionic strength on curcumin retention. FOOD STRUCTURE-NETHERLANDS 2019. [DOI: 10.1016/j.foostr.2019.100113] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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40
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Shahabadi N, Momeni BZ, Zendehcheshm S. Studies on the Interaction of [SnMe 2Cl 2(bu 2bpy)] Complex with ct-DNA Using Multispectroscopic, Atomic Force Microscopy (AFM) and Molecular Docking. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2019; 38:157-182. [PMID: 31044667 DOI: 10.1080/15257770.2018.1506885] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The interaction of SnMe2Cl2(bu2bpy)complex with calf thymus DNA (ct-DNA) has been explored following, using spectroscopic methods, viscosity measurements, Atomic force microscopy, Thermal denaturation and Molecular docking. It was found that Sn(IV) complex could bind with DNA via intercalation mode as evidenced by hyperchromism and bathochromic in UV-Vis spectrum; these spectral characteristics suggest that the Sn(IV) complex interacts with DNA most likely through a mode that involves a stacking interaction between the aromatic chromophore and the base pairs of DNA. In addition, the fluorescence emission spectra of intercalated methylene blue (MB) with increasing concentrations of SnMe2Cl2(bu2bpy) represented a significant increase of MB intensity as to release MB from MB-DNA system. Positive values of ΔH and ΔS imply that the complex is bound to ct-DNA mainly via the hydrophobic attraction. Large complexes contain the DNA chains with an average size of 859 nm were observed by using AFM for Sn(IV) Complex-DNA. The Fourier transform infrared study showed a major interaction of Sn(IV) complex with G-C and A-T base pairs and a minor perturbation of the backbone PO2 group. Addition of the Sn(IV)complex results in a noticeable rise in the Tm of DNA. In addition, the results of viscosity measurements suggest that SnMe2Cl2(bu2bpy) complex may bind with the classical intercalative mode. From spectroscopic and hydrodynamic studies, it has been found that Sn(IV)complex interacts with DNA by intercalation mode. Optimized docked model of DNA-complex mixture confirmed the experimental results.
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Affiliation(s)
- Nahid Shahabadi
- a Department of Inorganic Chemistry, Faculty of Chemistry , Razi University , Kermanshah , Iran.,b Medical Biology Research Center (MBRC) , Kermanshah University of Medical Sciences , Kermanshah , Iran
| | - Badri Z Momeni
- c Department of Chemistry , K. N. Toosi University of Technology , Tehran , Iran
| | - Saba Zendehcheshm
- a Department of Inorganic Chemistry, Faculty of Chemistry , Razi University , Kermanshah , Iran
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41
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Wang BL, Zhou KL, Lou YY, Pan DQ, Kou SB, Lin ZY, Shi JH. Assessment on the binding affinity between ritonavir with model transport protein: a combined multi-spectroscopic approaches with computer simulation. J Biomol Struct Dyn 2019; 38:744-755. [DOI: 10.1080/07391102.2019.1587515] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Bao-Li Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Kai-Li Zhou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Yan-Yue Lou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Dong-Qi Pan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - 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
| | - Jie-Hua Shi
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
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42
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Arumugam V, Rajamanikandan R, Ilanchelian M, Moodley KG, Redhi GG. Investigation of binding interactions between BSA and [EPMpyr][Sal] through spectroscopy studies, thermophysical and thermodynamic properties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 210:299-307. [PMID: 30471538 DOI: 10.1016/j.saa.2018.11.024] [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: 08/13/2018] [Revised: 10/29/2018] [Accepted: 11/12/2018] [Indexed: 06/09/2023]
Abstract
The intensity of research, probing the interactions between proteins and ionic liquid (IL), has been increasing and parallels the fast-growing applications of ILs in biotechnology. The specific aspects which have attracted the involvement of researchers are stabilization, separation, biochemical and enzymatic reactions of proteins. In this work the synthesis of IL, epoxypropyl and N-methyl substituted 2‑oxopyrrolidinium cation with salicylate anion, [EPMpyr][Sal], and its interaction with aqueous BSA{BSA(aq)-[EPMpyr][Sal]}. Measurements of thermophysical properties (density (ρ), and speed of sound (u)) showed that both moderately strong and weak interactions occur on treatment of BSA with that chosen IL. H-bond formation, dipole-dipole interactions and ionic interactions occurring in this system were investigated via thermophysical and thermodynamic properties as well as spectroscopic data. Thermodynamic data (excess molar volume (VmE), isentropic compressibility (ks), deviation in isentropic compressibility (∆ks) and intermolecular free length (Lf)) showed that there were stronger interaction between IL and BSA at higher temperature. The data from all the studies were correlated with Redlich Kister polynomial equation. The blue shift observed in the fluorescent spectra was interpreted to indicate that thetryptophan (Trp) residue of BSA moves to a more hydrophobic environment. It was also observed that the addition of more IL to BSA resulted in denaturation of BSA due to high hydrophobic nature of IL. Circular dichroism studies show that there were significant changes in the fine structure of BSA on interaction with IL. From the FTIR spectra the position of H-bond in the secondary structure of BSA was deduced.
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Affiliation(s)
| | - Ramar Rajamanikandan
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | | | | | - Gan G Redhi
- Department of Chemistry, Durban University of Technology, South Africa.
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43
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Uygun M, Doganci E, Tasdelen MA, Gurek AG. One‐pot photoinduced synthesis of dansyl containing acrylamide hydrogels and their chemosensing properties. J Appl Polym Sci 2019. [DOI: 10.1002/app.47096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- M. Uygun
- Department of ChemistryGebze Technical University 41400 Kocaeli Turkey
| | - E. Doganci
- Department of Chemistry and Chemical Processing TechKocaeli University 41140 Kocaeli Turkey
| | - M. A. Tasdelen
- Faculty of Engineering, Department of Polymer EngineeringYalova University 77100 Yalova Turkey
| | - A. G. Gurek
- Department of ChemistryGebze Technical University 41400 Kocaeli Turkey
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44
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Islam MM, Barik S, Sarkar M. Probing the Interactions of 1-Alkyl-3-methylimidazolium Tetrafluoroborate (Alkyl = Octyl, Hexyl, Butyl, and Ethyl) Ionic Liquids with Bovine Serum Albumin: An Alkyl Chain Length-Dependent Study. J Phys Chem B 2019; 123:1512-1526. [DOI: 10.1021/acs.jpcb.8b10795] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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 752050, Odisha, India
| | - Sahadev Barik
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, HBNI, Bhimpur-Padanpur,
Jatni, Khurda 752050, Odisha, India
| | - Moloy Sarkar
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, HBNI, Bhimpur-Padanpur,
Jatni, Khurda 752050, Odisha, India
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45
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Mirzaee F, Hosseinzadeh L, Ashrafi-Kooshk MR, Esmaeili S, Ghobadi S, Farzaei MH, Zad-Bari MR, Khodarahmi R. Diverse Effects of Different "Protein-Based" Vehicles on the Stability and Bioavailability of Curcumin: Spectroscopic Evaluation of the Antioxidant Activity and Cytotoxicity In Vitro. Protein Pept Lett 2019; 26:132-147. [PMID: 30430934 PMCID: PMC6416488 DOI: 10.2174/0929866525666181114152242] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 11/02/2018] [Accepted: 11/02/2018] [Indexed: 01/17/2023]
Abstract
BACKGROUND Curcumin is a natural polyphenolic compound with anti-cancer, antiinflammatory, and anti-oxidation properties. Low water solubility and rapid hydrolytic degradation are two challenges limiting use of curcumin. OBJECTIVE In this study, the roles of the native/modified forms of Bovine Serum Albumin (BSA), β-lactoglobulin (β-lg) and casein, as food-grade biopolymers and also protein chemical modification, in stabilizing and on biological activity of curcumin were surveyed. METHODS In this article, we used various spectroscopic as well as cell culture-based techniques along with calculation of thermodynamic parameters. RESULTS Investigation of curcumin stability indicated that curcumin binding to the native BSA and modified β -lg were stronger than those of the modified BSA and native β -lg, respectively and hence, the native BSA and modified β-lg could suppress water-mediated and light-mediated curcumin degradation, significantly. Moreover, in the presence of the native proteins (BSA and casein), curcumin revealed elevated in vitro anti-cancer activity against MCF-7 (human breast carcinoma cell line) and SKNMC (human neuroblastoma cell line). As well, curcumin, in the presence of the unmodified "BSA and β-lg", was more potent to decrease ROS generation by hydrogen peroxide (H2O2) whereas it led to an inverse outcome in the presence of native casein. Overall, in the presence of the protein-bound curcumin, increased anti-cancer activity and decreased ROS generation by H2O2 in vitro were documented. CONCLUSION It appears that "water exclusion" is major determinant factor for increased stability/ efficacy of the bound curcumin so that some protein-curcumin systems may provide novel tools to increase both food quality and the bioavailability of curcumin as health promoting agent.
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Affiliation(s)
| | | | | | | | | | | | | | - Reza Khodarahmi
- Address correspondence to this author at the Department of Pharmacognosy and Biotechnology, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran; E-mail:
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46
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Das S, Santra S, Rohman MA, Ray M, Jana M, Singha Roy A. An insight into the binding of 6-hydroxyflavone with hen egg white lysozyme: a combined approach of multi-spectroscopic and computational studies. J Biomol Struct Dyn 2018; 37:4019-4034. [DOI: 10.1080/07391102.2018.1535451] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Sourav Das
- Department of Chemistry, National Institute of Technology, Meghalaya, Shillong, India
| | - Santanu Santra
- Molecular Simulation Laboratory, Department of Chemistry, National Institute of Technology, Rourkela, India
| | - Mostofa Ataur Rohman
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, Shillong, India
| | - Mahuah Ray
- Department of Chemistry, National Institute of Technology, Meghalaya, Shillong, India
| | - Madhurima Jana
- Molecular Simulation Laboratory, Department of Chemistry, National Institute of Technology, Rourkela, India
| | - Atanu Singha Roy
- Department of Chemistry, National Institute of Technology, Meghalaya, Shillong, India
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Das S, Bora N, Rohman MA, Sharma R, Jha AN, Singha Roy A. Molecular recognition of bio-active flavonoids quercetin and rutin by bovine hemoglobin: an overview of the binding mechanism, thermodynamics and structural aspects through multi-spectroscopic and molecular dynamics simulation studies. Phys Chem Chem Phys 2018; 20:21668-21684. [PMID: 30101248 DOI: 10.1039/c8cp02760a] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The binding of two bio-active flavonoids, quercetin and rutin, with bovine hemoglobin (BHb) was investigated by multi-spectroscopic and computational (molecular docking and molecular dynamics simulation) studies. The two flavonoids were found to quench the intrinsic fluorescence of BHb through a static quenching mechanism. The binding constants at 288 K were observed to be (14.023 ± 0.73) × 104 M-1 and (7.848 ± 0.20) × 104 M-1, respectively for quercetin and rutin binding with BHb. Both rutin and quercetin were observed to increase the polarity around the Trp residues of BHb as indicated by synchronous and 3D spectral studies. No significant alterations in the secondary structural components of the protein were caused during the binding of the flavonoids as studied by CD and FTIR studies. The negative molar Gibbs free energies indicated the spontaneity of the interaction processes while the binding processes were characterized by a negative enthalpy change (ΔH) and a positive entropy change (ΔS). The possibility of energy transfer from the donor (BHb) to the acceptor molecules (flavonoids) was indicated by the FRET studies. According to the fluorescence studies, the flavonoids interact near to the β2-Trp37 residue of BHb. Excellent correlations with the experimental studies were observed from the molecular docking and molecular dynamics (MD) simulation studies. Further investigations established that these flavonoids are efficient in the inhibition of glucose mediated glycation of BHb.
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Affiliation(s)
- Sourav Das
- Department of Chemistry, National Institute of Technology, Meghalaya, Shillong 793003, India.
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Hu K, Liu C, Li J, Liang F. Copper(ii) complexes based on quinoline-derived Schiff-base ligands: synthesis, characterization, HSA/DNA binding ability, and anticancer activity. MEDCHEMCOMM 2018; 9:1663-1672. [PMID: 30429971 DOI: 10.1039/c8md00223a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 09/01/2018] [Indexed: 12/20/2022]
Abstract
Three copper(ii) complexes, [Cu(L1)(NO3)2] (C1), [Cu(L2)Cl2] (C2) and [Cu(L2)SO4]2·H2O (C3), were designed and synthesized by the reaction of Cu(NO3)2·3H2O, CuCl2·2H2O and CuSO4·5H2O with a quinoline-derived Schiff base ligand, L1 or L2, prepared by the condensation of quinoline-8-carbaldehyde with 4-aminobenzoic acid methyl ester or 4-aminobenzoic acid ethyl ester (benzocaine). The efficient bindings of the C1-C3 complexes with human serum albumin (HSA) and calf thymus DNA (CT-DNA) were analyzed by spectroscopy and molecular docking. These complexes could significantly quench the fluorescence of HSA through the static quenching process, and hydrophobic interactions with HSA through the sub-domain IIA and IIIA cavities. The complexes bind to DNA via the intercalative mode and they fit well into the curved contour of the DNA target in the minor groove region. Furthermore, the interaction abilities of the Cu(ii) complexes with HSA/DNA were greater as compared to their corresponding ligands. Interestingly, C1-C3, particularly C3, exhibited more cytotoxicity toward HeLa cells compared to normal HL-7702 cells and three other tumor cell lines (Hep-G2, NCI-H460, and MGC80-3). Their cytotoxicity toward the HeLa cell lines was 1.9-3.5-fold more potent than cisplatin. Further studies indicated that these complexes arrested the cell cycle in the G0/G1 phase and promoted tumor cell apoptosis via a reactive oxygen species (ROS)-mediated mitochondrial pathway.
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Affiliation(s)
- Kun Hu
- State Key Laboratory Cultivation Base for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmacy , Guangxi Normal University , 15 Yucai Road , Guilin 541004 , P. R. China . ;
| | - Chensi Liu
- State Key Laboratory Cultivation Base for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmacy , Guangxi Normal University , 15 Yucai Road , Guilin 541004 , P. R. China . ;
| | - Jingui Li
- State Key Laboratory Cultivation Base for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmacy , Guangxi Normal University , 15 Yucai Road , Guilin 541004 , P. R. China . ;
| | - Fupei Liang
- State Key Laboratory Cultivation Base for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmacy , Guangxi Normal University , 15 Yucai Road , Guilin 541004 , P. R. China . ; .,Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials , College of Chemistry and Bioengineering , Guilin University of Technology , Guilin 541004 , China
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Shaikh SAM, Singh BG, Barik A, Ramani MV, Balaji NV, Subbaraju GV, Naik DB, Indira Priyadarsini K. Diketo modification of curcumin affects its interaction with human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 199:394-402. [PMID: 29635184 DOI: 10.1016/j.saa.2018.03.085] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 03/26/2018] [Accepted: 03/30/2018] [Indexed: 06/08/2023]
Abstract
Curcumin isoxazole (CI) and Curcumin pyrazole (CP), the diketo modified derivatives of Curcumin (CU) are metabolically more stable and are being explored for pharmacological properties. One of the requirements in such activities is their interaction with circulatory proteins like human serum albumin (HSA). To understand this, the interactions of CI and CP with HSA have been investigated employing absorption and fluorescence spectroscopy and the results are compared with that of CU. The respective binding constants of CP, CI and CU with HSA were estimated to be 9.3×105, 8.4×105 and 2.5×105M-1, which decreased with increasing salt concentration in the medium. The extent of decrease in the binding constant was the highest in CP followed by CI and CU. This revealed that along with hydrophobic interaction other binding modes like electrostatic interactions operate between CP/CI/CU with HSA. Fluorescence quenching studies of HSA with these compounds suggested that both static and dynamic quenching mechanisms operate, where the contribution of static quenching is higher for CP and CI than that for CU. From fluorescence resonance energy transfer studies, the binding site of CU, CI and CP was found to be in domain IIA of HSA. CU was found to bind in closer proximity with Trp214 as compared to CI and CP and the same was responsible for efficient energy transfer and the same was also established by fluorescence anisotropy measurements. Furthermore docking simulation complemented the experimental observation, where both electrostatic as well as hydrophobic interactions were indicated between HSA and CP, CI and CU. This study is useful in designing more stable CU derivatives having suitable binding properties with proteins like HSA.
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Affiliation(s)
- Shaukat Ali M Shaikh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Beena G Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - Atanu Barik
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | | | - Neduri V Balaji
- Natsol Laboratories, J.N. Pharmacity, Visakhapatnam 531019, India
| | | | - Devidas B Naik
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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Karimian Amroabadi M, Taheri-Kafrani A, Heidarpoor Saremi L, Rastegari AA. Spectroscopic studies of the interaction between alprazolam and apo-human serum transferrin as a drug carrier protein. Int J Biol Macromol 2018; 108:263-271. [DOI: 10.1016/j.ijbiomac.2017.11.179] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 11/29/2017] [Accepted: 11/30/2017] [Indexed: 01/20/2023]
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