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Gokavi NM, Nandibewoor ST, Gowda JI. Investigations of the Interaction Mechanism Between Orphenadrine Hydrochloride and Bovine Serum Albumin by Spectroscopic and Voltammetric Techniques. J Fluoresc 2023; 33:2061-2073. [PMID: 36976401 DOI: 10.1007/s10895-023-03199-y] [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: 01/28/2023] [Accepted: 03/03/2023] [Indexed: 03/29/2023]
Abstract
The interaction of orphenadrine hydrochloride (ORD) with the model protein, bovine serum albumin (BSA), was investigated using a variety of spectroscopic techniques such as steady-state fluorescence, ultraviolet-visible, Fourier transform infrared, 3-D spectroscopy, and electrochemical methods under physiological conditions. Stern-Volmer plots were used to calculate fluorescence quenching at various temperatures. The findings point to a static quenching mechanism between ORD and BSA. At various reaction times, the binding sites (n) and binding constants (K) of ORD to BSA were recorded. Thermodynamic parameters ∆H0, ∆S0 and ∆G0 between ORD and BSA were calculated and reported. The average binding distance (r) between the donor (BSA) and acceptor (ORD) molecules was predicted using Förster's theory. Three-dimensional fluorescence spectra, Fourier transform infrared spectra, and synchronous fluorescence studies all supported the alternations in protein structure following the interaction with ORD. A displacement study using site probes such as warfarin, ibuprofen, and digitoxin confirmed ORD binding at Sudlow's site I of BSA. The effect of common metal ions such as Cu2+, Ni2+, Ca2+, Co2+, and Zn2+ on binding constant values was investigated and reported.
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Affiliation(s)
- Naveen M Gokavi
- P. G. Department of Studies in Chemistry, Karnatak University, Dharwad, Karnataka, 580003, India
- Department of Chemistry, Karnatak Science College, Dharwad, Karnataka, 580001, India
| | - Sharanappa T Nandibewoor
- P. G. Department of Studies in Chemistry, Karnatak University, Dharwad, Karnataka, 580003, India
| | - Jayant I Gowda
- Department of Chemistry, BLDEA's Commerce, BHS Arts and TGP Science College, Jamkhandi, Karnataka, 587301, India.
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2
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Lukáčová Bujňáková Z, Melnyk I, Dutková E, Varhač R, Jakubíková J, Cholujová D, Tóthová E, Storozhuk L, Briančin J. Nano-bio Interface between As 4S 4 Nanoparticles and Albumin Influenced by Wet Stirred Media Milling. Int J Pharm 2023; 640:123046. [PMID: 37178791 DOI: 10.1016/j.ijpharm.2023.123046] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/26/2023] [Accepted: 05/08/2023] [Indexed: 05/15/2023]
Abstract
Arsenic sulfide (As4S4) nanoparticles have been intensively researched as a promising drug in a cancer treatment. For the first time, the interaction between As4S4 and bovine serum albumin has been studied in this paper. Initially, the sorption kinetics of albumin on the surface of nanoparticles was investigated. Subsequently, its structural changes influenced by interaction with the As4S4 nanoparticles during wet stirred media milling were studied in deep. Both the dynamic and static quenching were detected after analyzing the fluorescence quenching spectra. From the synchronous fluorescence spectra it was investigated, that the fluorescence intensity for tyrosine residues decreased by about 55%, and for tryptophan it was about 80%. It indicates the fluorescence from tryptophan is more intense and gets more efficiently quenched than those from tyrosine residues in presence of As4S4, implying that the tryptophan can be closer to the binding site. From the circular dichroisms and FTIR spectra it was observed that conformation of the protein remains almost unchanged. The content of appropriate secondary structures was determined by deconvolution of the absorption peak attributed to the amide I band in FTIR spectra. The preliminary anti-tumor cytotoxic effect of prepared albumin-As4S4 system was also tested on multiple myeloma cell lines.
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Affiliation(s)
| | - Inna Melnyk
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia
| | - Erika Dutková
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia
| | - Rastislav Varhač
- Faculty of Science, Pavol Jozef Šafárik University in Košice, Šrobárova 2, 04154 Košice, Slovakia
| | - Jana Jakubíková
- Cancer Research Institute BMC, Slovak Academy of Sciences, Dúbravská cesta 9, 84505 Bratislava, Slovakia
| | - Danka Cholujová
- Cancer Research Institute BMC, Slovak Academy of Sciences, Dúbravská cesta 9, 84505 Bratislava, Slovakia
| | - Erika Tóthová
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia
| | - Liudmyla Storozhuk
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia; Healthcare Biomagnetic and Nanomaterials Laboratory, University College London, 21 Albemarle Street, London W1S 4BS, United Kingdom
| | - Jaroslav Briančin
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia
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3
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Label-free biosensing of lignans for therapeutics using engineered model surfaces. Int J Biol Macromol 2023; 233:123528. [PMID: 36736979 DOI: 10.1016/j.ijbiomac.2023.123528] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/24/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023]
Abstract
The label-free interaction analysis of macromolecules and small molecules has increasing importance nowadays, both in diagnostics and therapeutics. In the blood vascular system, human serum albumin (HSA) is a vital globular transport protein with potential multiple ligand binding sites. Characterizing the binding affinity of compounds to HSA is essential in pharmaceutics and in developing new compounds for clinical application. Aryltetralin lignans from the roots of Anthriscus sylvestris are potential antitumor therapeutic candidates, but their molecular scale interactions with specific biomolecules are unrevealed. Here, we applied the label-free grating-coupled interferometry (GCI) biosensing method with a polycarboxylate-based hydrogel layer with immobilized HSA on top of it. With this engineered model surface, we could determine the binding parameters of two novel aryltetralin lignans, deoxypodophyllotoxin (DPT), and angeloyl podophyllotoxin (APT) to HSA. Exploiting the multi-channel referencing ability, the unique surface sensitivity, and the throughput of GCI, we first revealed the specific biomolecular interactions. Traditional label-free kinetic measurements were also compared with a novel, fast way of measuring affinity kinetics using less sample material (repeated analyte pulses of increasing duration (RAPID)). Experiments with well-characterized molecular interactions (furosemide to carbonic-anhydrase (CAII) and warfarin, norfloxacin to HSA) were performed to prove the reliability of the RAPID method. In all investigated cases, the RAPID and traditional measurement gave similar affinity values. In the case of DPT, the measurements and relevant modeling suggested two binding sites on HSA, with dissociation constant values of Kd1 = 1.8 ± 0.01 μM, Kd2 = 3 ± 0.02 μM. In the case of APT, the experiments resulted in Kd1 = 9 ± 1.7 μM, Kd2 = 28 ± 0.3 μM. The obtained binding values might suggest the potential medical application of DPT and APT without further optimization of their binding affinity to HSA. These results could be also adapted to other biomolecules and applications where sample consumption and the rapidity of the measurements are critical.
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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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Ahanger IA, Parray ZA, Raina N, Bashir S, Ahmad F, Hassan MI, Shahid M, Sharma A, Islam A. Counteraction of the cetyltrimethylammonium bromide-induced protein aggregation by Heparin: Potential impact on protein aggregation and neurodegenerative diseases using biophysical approaches. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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Arif A, Hashmi MA, Salam S, Younus H, Mahmood R. Interaction of the insecticide bioallethrin with human hemoglobin: biophysical, in silico and enzymatic studies. J Biomol Struct Dyn 2022:1-12. [PMID: 35950518 DOI: 10.1080/07391102.2022.2109756] [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: 10/15/2022]
Abstract
Bioallethrin is an insecticide that is widely used in households resulting in human exposure. Bioallethrin is cytotoxic to human erythrocytes. Here we have studied the interaction of bioallethrin with human hemoglobin (Hb) using in silico and biophysical approaches. Incubation of Hb (5 μM) with bioallethrin (1-50 µM) led to increase in absorbance at 280 nm while the Soret band at 406 nm was slightly reduced. The intrinsic fluorescence of Hb was enhanced with the appearance of a new peak around 305 nm. Synchronous fluorescence showed that the binding of bioallethrin to Hb mainly affects the tyrosine microenvironment. The structural changes in Hb were confirmed with a significant shift in CD spectra and about 25% loss of α-helix. Molecular docking and visualisation through Discovery studio confirmed the formation of Hb-bioallethrin complex with a binding energy of -7.3 kcal/mol. Molecular simulation showed the stability and energy dynamics of the binding reaction between bioallethrin and Hb. The structural changes induced by bioallethrin led to inhibition of the esterase activity of Hb. In conclusion, this study shows that bioallethrin forms a stable complex with human Hb which may lead to loss of Hb function in the body.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Amin Arif
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Md Amiruddin Hashmi
- Department of Biotechnology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Samreen Salam
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Hina Younus
- Department of Biotechnology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Riaz Mahmood
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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Chen C, Sun-Waterhouse D, Zhao J, Zhang Y, Waterhouse GI, Lin L, Zhao M, Sun W. Method for loading liposomes with soybean protein isolate hydrolysate influences the antioxidant efficiency of liposomal systems: Adding after liposomes formation or before lipid film hydration. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107629] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Lv Y, Liang Q, Li Y, Liu X, Zhang D, Li X. Study of the binding mechanism between hydroxytyrosol and bovine serum albumin using multispectral and molecular docking. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107072] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Ali MS, Muthukumaran J, Jain M, Santos-Silva T, Al-Lohedan HA, Al-Shuail NS. Molecular interactions of cefoperazone with bovine serum albumin: Extensive experimental and computational investigations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116354] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Wiglusz K, Żurawska-Płaksej E, Rorbach-Dolata A, Piwowar A. How Does Glycation Affect Binding Parameters of the Albumin-Gliclazide System in the Presence of Drugs Commonly Used in Diabetes? In Vitro Spectroscopic Study. Molecules 2021; 26:molecules26133869. [PMID: 34202801 PMCID: PMC8270297 DOI: 10.3390/molecules26133869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 11/16/2022] Open
Abstract
In this research, the selected drugs commonly used in diabetes and its comorbidities (gliclazide, cilazapril, atorvastatin, and acetylsalicylic acid) were studied for their interactions with bovine serum albumin-native and glycated. Two different spectroscopic methods, fluorescence quenching and circular dichroism, were utilized to elucidate the binding interactions of the investigational drugs. The glycation process was induced in BSA by glucose and was confirmed by the presence of advanced glycosylation end products (AGEs). The interaction between albumin and gliclazide, with the presence of another drug, was confirmed by calculation of association constants (0.11-1.07 × 104 M-1). The nature of changes in the secondary structure of a protein depends on the drug used and the degree of glycation. Therefore, these interactions may have an influence on pharmacokinetic parameters.
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Affiliation(s)
- Katarzyna Wiglusz
- Department of Analytical Chemistry, Wroclaw Medical University, Borowska 211, PL-50556 Wrocław, Poland;
| | - Ewa Żurawska-Płaksej
- Department of Toxicology, Wroclaw Medical University, Borowska 211, PL-50556 Wrocław, Poland; (A.R.-D.); (A.P.)
- Department of Pharmaceutical Biochemistry, Wroclaw Medical University, Borowska 211, PL-50556 Wrocław, Poland
- Correspondence: ; Tel.: +48-71-784-0453
| | - Anna Rorbach-Dolata
- Department of Toxicology, Wroclaw Medical University, Borowska 211, PL-50556 Wrocław, Poland; (A.R.-D.); (A.P.)
| | - Agnieszka Piwowar
- Department of Toxicology, Wroclaw Medical University, Borowska 211, PL-50556 Wrocław, Poland; (A.R.-D.); (A.P.)
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11
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Kaushal D, Lal H, Ansari SS, Naqvi S. Effect of local anesthetic drug procaine hydrochloride on the conformational stability of bovine hemoglobin: Multi-spectroscopic and computational approaches. J Biomol Struct Dyn 2021; 40:8938-8948. [PMID: 33970817 DOI: 10.1080/07391102.2021.1920465] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The interaction between bovine hemoglobin (BHb) and local anesthetic drug procaine hydrochloride (PCH) was examined by spectroscopic and computational studies. Intrinsic fluorescence analysis explored the ground-state complex formation in the binding of PCH with BHb through static quenching mechanism. The binding constants (Kb) are 29.38 × 103, 22.54 × 103 and 17.99 × 103 M-1 at 288, 298 and 308 K, respectively, and the ratio of BHb:PCH was 1:1 in the interaction mechanism of PCH and BHb. The acquired thermodynamic parameters (ΔH0, ΔG0 and ΔS0) demonstrated that interaction mechanism is spontaneous and enthalpy driven. The van der Waals forces and hydrogen bonding have been played a predominant role in the binding mechanism. The UV-vis spectroscopy validates the ground-state complexation between PCH and BHb and the binding constant (Kb) has been evaluated utilizing Benesi-Hildebrand equation. Fluorescence resonance energy transfer (FRET) results have demonstrated that the distance between donor (BHb) and acceptor (PCH) is very short (2.34 nm) suggesting a significant probability to energy transfer from BHb to PCH. Synchronous fluorescence results revealed that the alteration in the micro-environment of Tyrosine (Tyr) is more than tryptophan (Trp) residues suggesting that PCH molecule is close to Tyr residue. The secondary structure alterations were confirmed by CD, 3-D fluorescence and FT-IR spectroscopic measurements. Moreover, computational analyses further corroborated that PCH molecules are closer to Tyr residues as compared to Trp residues of BHb during the interaction process. The BHb-PCH complexes may contribute to a deeper understanding of the metabolism of drug, blood circulation process and may help to illustrate the relationship between functions and structure of BHb.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Deepak Kaushal
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Hira Lal
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | | | - Saeeda Naqvi
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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12
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Mrkalić E, Jelić R, Stojanović S, Sovrlić M. Interaction between olanzapine and human serum albumin and effect of metal ions, caffeine and flavonoids on the binding: A spectroscopic study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 249:119295. [PMID: 33338934 DOI: 10.1016/j.saa.2020.119295] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 11/03/2020] [Accepted: 11/29/2020] [Indexed: 06/12/2023]
Abstract
In this study, the binding of olanzapine (OLZ) to human serum albumin (HSA) and the influence of metal ions (Ca2+, Mg2+, Cu2+, Zn2+, Fe3+), caffeine (CAF) and flavonoids (diosmin (DIO), catechin (CAT), quercetin (QUE)), on their affinity, was investigated by fluorescence spectroscopy and UV-vis absorption spectroscopy. Fluorescence experiments suggest that OLZ quench the fluorescence of HSA through the mixed quenching mechanism and non-radiation energy transferring as a result of the HSA-OLZ complex formation. OLZ spontaneously bind in the site I on HSA, and according to thermodynamic parameters, the reaction was spontaneous and mainly driven by hydrogen bonds and van der Waals interactions. The presence of Mn+ ions, CAF, DIO and CAT decreased binding affinity between OLZ and HSA which indicates that they could compete against OLZ in the site I. Contrary, in the presence of QUE the binding affinity of the HSA-OLZ system enhanced, which may be explained by conformational changes in HSA (non-competitive interference).
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Affiliation(s)
- Emina Mrkalić
- University of Kragujevac, Institute for Information Technologies, Department of Science, Jovana Cvijića bb, Kragujevac 34000, Serbia
| | - Ratomir Jelić
- University of Kragujevac, Faculty of Medical Sciences, Department of Pharmacy, Svetozara Markovića 69, Kragujevac 34000, Serbia.
| | - Stefan Stojanović
- University of Kragujevac, Faculty of Medical Sciences, Department of Pharmacy, Svetozara Markovića 69, Kragujevac 34000, Serbia
| | - Miroslav Sovrlić
- University of Kragujevac, Faculty of Medical Sciences, Department of Pharmacy, Svetozara Markovića 69, Kragujevac 34000, Serbia
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13
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Judy E, Kishore N. Discrepancies in Thermodynamic Information Obtained from Calorimetry and Spectroscopy in Ligand Binding Reactions: Implications on Correct Analysis in Systems of Biological Importance. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Eva Judy
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai – 400 076, India
| | - Nand Kishore
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai – 400 076, India
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14
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Syed MM, Doshi PJ, Bharshankh A, Dhavale DD, Kate SL, Kulkarni G, Doshi JB, Kulkarni MV. Repurposing of genistein as anti-sickling agent: elucidation by multi spectroscopic, thermophoresis, and molecular modeling techniques. J Biomol Struct Dyn 2020; 40:4038-4050. [PMID: 33305701 DOI: 10.1080/07391102.2020.1852967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Sickle cell disease (SCD) is a major medical problem in which mono-therapeutic interventions have so far shown only limited effectiveness. We studied the repurpose of genistein, which could prevent sickle hemoglobin from polymerizing under hypoxic conditions in this disease. Genistein an important nutraceutical molecule found in soybean. The present study examines the repurposing genistein as an anti- sickling agent. Genistein shows inhibition of Hb S polymerization as well as a sickle reversal. Also, we have explored the interaction of the genistein with sickle hemoglobin (Hb S), using fluorescence, far-UV-CD spectroscopy, MicroScale Thermophoresis (MST), FTIR, combined with molecular modeling computations. The quenching constant decreases with increasing temperature, a characteristic that coincides with the static type of quenching mechanism. Temperature-dependent fluorescence measurements and molecular modeling studies reveal that apart from the hydrogen bonding, electrostatic interactions also play a crucial role in genistein and Hb S complex formation. In silico, distribution prediction of adsorption, digestion, metabolism, excretion, and toxicity (ADME/Tox) based on physical and chemical properties show that genistein is nontoxic and has ideal drug properties. The helicity and thermophoretic mobility of Hb S was a change in the presence of genistein, which leads to the destabilizing the Hb S polymer was examined using CD and MST, respectively. Our results open up the possibility for a promising therapeutic approach for the SCD by repurposed genistein as an anti-sickling agent.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Muntjeeb M Syed
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, Maharashtra, India
| | - Pooja J Doshi
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, Maharashtra, India
| | - Ankita Bharshankh
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, Maharashtra, India
| | - Dilip D Dhavale
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, Maharashtra, India
| | - Sudam L Kate
- Maharashtra Arogya Mandal's, Sumatibhai Shah Ayurved Ahavidyalaya - College of Ayurveda and Research Centre Hadapsar, Pune, Maharashtra, India
| | - Girish Kulkarni
- Maharashtra Arogya Mandal's, Sumatibhai Shah Ayurved Ahavidyalaya - College of Ayurveda and Research Centre Hadapsar, Pune, Maharashtra, India
| | - Jignesh B Doshi
- Toxoid Purification Department, Serum Institute of India Ltd, Hadapsar, Pune, Maharashtra, India
| | - Mohan V Kulkarni
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, Maharashtra, India
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15
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Sadeghzadeh F, Entezari AA, Behzadian K, Habibi K, Amiri-Tehranizadeh Z, Asoodeh A, Saberi MR, Chamani J. Characterizing the Binding of Angiotensin Converting Enzyme I Inhibitory Peptide to Human Hemoglobin: Influence of Electromagnetic Fields. Protein Pept Lett 2020; 27:1007-1021. [DOI: 10.2174/1871530320666200425203636] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/18/2020] [Accepted: 02/22/2020] [Indexed: 01/28/2023]
Abstract
Background:
Drug-protein complexes is one of the crucial factors when analyzing the
pharmacokinetics and pharmacodynamics of a drug because they can affect the excretion, distribution,
metabolism and interaction with target tissues.
Objectives:
The aim of this study was to investigate the interaction of human hemoglobin (Hb) and
angiotensin I converting enzyme inhibitory peptide (ACEIP) in the absence and presence of different-
frequency electromagnetic fields (EMF).
Methods:
Various spectroscopic methods like fluorescence spectroscopy, ultraviolet, circular
dichroism and conductometry techniques were applied to investigate Hb-ACEIP interaction in the
absence and presence of EMF.
Result:
The presented spectroscopic studies indicated that EMF changed the interaction between
Hb and ACEIP. The a-helix content of Hb decreased upon binding to ACEIP and conductivity of
the solution enhanced upon binding. Based on Stern-Volmer equations, it could be stated that the
Hb-ACEIP affinity was higher in the presence of EMF.
Conclusion:
It can be concluded that for patients who use the drug to control blood pressure, a
low-frequency electromagnetic field would have a positive effect on the uptake of the drug.
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Affiliation(s)
- Farzaneh Sadeghzadeh
- Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Amir Arsalan Entezari
- Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Kiana Behzadian
- Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Kimia Habibi
- Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Zeinab Amiri-Tehranizadeh
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ahmad Asoodeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Reza Saberi
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Jamshidkhan Chamani
- Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
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16
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Effect of Presence of Aliphatic Glycine in the Anti-cancer Platinum Complex Structure on Human Serum Albumin Binding. J Pharm Innov 2020. [DOI: 10.1007/s12247-020-09508-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Huang Y, Du H, Kamal GM, Cao Q, Liu C, Xiong S, Manyande A, Huang Q. Studies on the Binding Interactions of Grass Carp (Ctenopharyngodon idella) Myosin with Chlorogenic Acid and Rosmarinic Acid. FOOD BIOPROCESS TECH 2020. [DOI: 10.1007/s11947-020-02483-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Li J, Munir S, Yu X, Yin T, You J, Liu R, Xiong S, Hu Y. Interaction of myofibrillar proteins and epigallocatechin gallate in the presence of transglutaminase in solutions. Food Funct 2020; 11:9560-9572. [DOI: 10.1039/d0fo02294b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rheological behavior, assembly measurements, thermal stability, molecular conformation, and molecular interactions of myofibrillar proteins (MP) modified by transglutaminase (TGase) and epigallocatechin-3-gallate (EGCG) were investigated.
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Affiliation(s)
- Jinling Li
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Sadia Munir
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Xiaoyue Yu
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Tao Yin
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Juan You
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Ru Liu
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Shanbai Xiong
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Yang Hu
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
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Interactions of 7,8-Dihydroxyflavone with Serum Albumin as well as with CYP2C9, CYP2C19, CYP3A4, and Xanthine Oxidase Biotransformation Enzymes. Biomolecules 2019; 9:biom9110655. [PMID: 31731555 PMCID: PMC6920897 DOI: 10.3390/biom9110655] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/15/2019] [Accepted: 10/23/2019] [Indexed: 02/06/2023] Open
Abstract
7,8-dihydroxyflavone (DHF) is a flavone aglycone which has beneficial effects in several central nervous system diseases. Most of the pharmacokinetic properties of DHF have been characterized, while only limited information is available regarding its interactions with serum albumin and biotransformation enzymes. In this study, the interactions of DHF with albumin was examined employing fluorescence spectroscopy and ultrafiltration. Furthermore, the inhibitory effects of DHF on cytochrome P450 (CYP2C9, CYP2C19, and CYP3A4) and xanthine oxidase (XO) enzymes were also tested using in vitro models. Our results demonstrate that DHF forms a stable complex with albumin (K = 4.9 × 105 L/mol) and that it is able to displace both Site I and Site II ligands. Moreover, DHF proved to be a potent inhibitor of each enzyme tested, showing similar or slightly weaker effects than the positive controls used. Considering the above-listed observations, the coadministration of DHF with drugs may interfere with the drug therapy due to the development of pharmacokinetic interactions.
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20
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Syed MM, Doshi PJ, Dhavale DD, Doshi JB, Kate SL, Kulkarni G, Sharma N, Uppuladinne M, Sonavane U, Joshi R, Kulkarni MV. Potential of isoquercitrin as antisickling agent: a multi-spectroscopic, thermophoresis and molecular modeling approach. J Biomol Struct Dyn 2019; 38:2717-2736. [PMID: 31315526 DOI: 10.1080/07391102.2019.1645735] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Sickle cell disease is an inherited disease caused by point mutation in hemoglobin (β-globin gene). Under oxygen saturation, sickle hemoglobin form polymers, leading to rigid erythrocytes. The transition of the blood vessels is altered and initiated by the adhesion of erythrocytes, neutrophils and endothelial cells. Sickle Hemoglobin (HbS) polymerization is a major cause in red blood cells (RBC), promoting sickling and destruction of RBCs. Isoquercitrin, a medicinal bioactive compound found in various medicinal plants, has multiple health benefits. The present study examines the potential of isoquercitrin as an anti-sickle agent, showing a significant decrease in the rate of polymerization as well as sickling of RBCs. Isoquercitrin-induced graded alteration in absorbance and fluorescence of HbS, confirmed their interaction. A negative value of ΔG° strongly suggests that it is a spontaneous exothermic reaction induced by entropy. Negative ΔH° and positive ΔS° predicted that hydrogen and hydrophobic binding forces interfered with a hydrophobic microenvironment of β6Val leading to polymerization inhibition of HbS. HbS-Isoquercitrin complex exhibits helical structural changes leading to destabilization of the HbS polymer as confirmed by CD spectroscopy. MST and DSC results indicate greater changes in thermophoretic mobility and thermal stability of sickle hemoglobin in the presence of isoquercitrin, respectively. These findings were also supported by molecular simulation studies using DOCK6 and GROMACS. Hence, we can conclude that isoquercitrin interacts with HbS through hydrogen bonding, which leads to polymerization inhibition. Consequently, isoquercitrin could potentially be used as a medication for the treatment of sickle cell disease.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Muntjeeb M Syed
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, India
| | - Pooja J Doshi
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, India
| | - Dilip D Dhavale
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, India
| | | | - Sudam L Kate
- College of Ayurveda and Research Centre Hadapsar, Maharashtra Arogya Mandal's Sumatibhai Shah Ayurved Mahavidyalaya, Pune, India
| | - Girish Kulkarni
- College of Ayurveda and Research Centre Hadapsar, Maharashtra Arogya Mandal's Sumatibhai Shah Ayurved Mahavidyalaya, Pune, India
| | - Neeru Sharma
- HPC Medical and Bioinformatics Applications Group, Centre for Development of Advanced Computing, Savitribai Phule Pune University Campus, Pune, India
| | - Mallikarjunachari Uppuladinne
- HPC Medical and Bioinformatics Applications Group, Centre for Development of Advanced Computing, Savitribai Phule Pune University Campus, Pune, India
| | - Uddhavesh Sonavane
- HPC Medical and Bioinformatics Applications Group, Centre for Development of Advanced Computing, Savitribai Phule Pune University Campus, Pune, India
| | - Rajendra Joshi
- HPC Medical and Bioinformatics Applications Group, Centre for Development of Advanced Computing, Savitribai Phule Pune University Campus, Pune, India
| | - Mohan V Kulkarni
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, India
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21
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Chauhan P, Ghosh KS. Inhibition of copper-induced aggregation of human γD-crystallin by rutin and studies on its role in molecular level for enhancing the chaperone activity of human αA-crystallin by using multi-spectroscopic techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 218:229-236. [PMID: 31003047 DOI: 10.1016/j.saa.2019.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 04/07/2019] [Accepted: 04/09/2019] [Indexed: 06/09/2023]
Abstract
Oxidative aggregation of γ-crystallins induced by copper in aged lens increases the lens opacity and causes cataract formation. Therefore, chelation of free Cu2+ by small molecules can inhibit metal-mediated aggregation of γ-crystallin. In this work, the inhibition potency of several naturally occurring flavonoid compounds was studied against aggregation of human γD-crystallin (HGD) mediated by copper ions. Among them, rutin demonstrated ~20% inhibition of HGD aggregation induced by Cu2+ through its metal chelation ability. Not only that, the chaperone activity of lens chaperone, human αA-crystallin (HAA) was found to be enhanced in the presence of rutin. Subsequently, the molecular interactions between HAA and rutin were investigated using fluorescence and CD spectroscopy to understand the molecular basis of the chaperone activity enhancement by rutin. Quenching of HAA fluorescence by rutin with a quenching constant in the order of ~105 M-1 depicts a complexation between them. Entropy driven process of complexation between HAA and rutin suggests significant involvement of hydrophobic interactions. Fluorescence resonance energy transfer between protein and ligand can occur at a distance of 2.73 nm. Synchronous fluorescence and circular dichroism spectroscopy revealed that protein-ligand interaction does not cause any notable conformational changes in HAA. Experimental observations have been well substantiated by docking.
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Affiliation(s)
- Priyanka Chauhan
- Department of Chemistry, National Institute of Technology Hamirpur, Himachal Pradesh 177005, India
| | - Kalyan S Ghosh
- Department of Chemistry, National Institute of Technology Hamirpur, Himachal Pradesh 177005, India.
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22
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Bhat IA, Roy B, Hazra P, Kabir-Ud-Din. Conformational and solution dynamics of hemoglobin (Hb) in presence of a cleavable gemini surfactant: Insights from spectroscopy, atomic force microscopy, molecular docking and density functional theory. J Colloid Interface Sci 2019; 538:489-498. [PMID: 30537662 DOI: 10.1016/j.jcis.2018.12.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 11/19/2018] [Accepted: 12/02/2018] [Indexed: 12/30/2022]
Abstract
Herein, we have explored the conformational alterations of hemoglobin (Hb) in presence of a cleavable gemini surfactant (C16-C4O2-C16). The concerned surfactant was found to induce significant structural perturbations in Hb. UV-vis spectroscopy, steady-state/time-resolved fluorescence, and other utilized techniques have authenticated the complexation of Hb with the gemini surfactant. CD has demonstrated the alterations in secondary structural elements (α-helicity, β-sheet, β-turn, and random coil) of Hb upon C16-C4O2-C16 addition. Atomic force microscopy (AFM) has revealed the existence of unique star-shaped gemini surfactant microstructures aligned to Hb in a necklace pattern. The 1H NMR peak broadening and lower delta values hint at the binding of the concerned gemini surfactant to Hb. Molecular docking and DFT calculations have further substantiated the Hb-gemini complex formation and the involvement of electrostatic/hydrophobic forces therein. In future, these results might pave-the-way to construct self-assembled, sustainable, and green surfactant-protein mixtures for their end-use in industrial, engineering, biomedical, drug delivery, gene transfection, and other relevant excipient formulations.
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Affiliation(s)
- Imtiyaz Ahmad Bhat
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008, Maharashtra, India.
| | - Bibhisan Roy
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008, Maharashtra, India
| | - Partha Hazra
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008, Maharashtra, India
| | - Kabir-Ud-Din
- Department of Chemistry, Arba Minch University, Ethiopia
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23
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Syed MM, Doshi PJ, Kulkarni MV, Dhavale DD, Kadam NS, Kate SL, Doshi JB, Sharma N, Uppuladinne M, Sonavane U, Joshi R, Doshi SJ, Bhattacharya N. Alizarin interaction with sickle hemoglobin: elucidation of their anti-sickling properties by multi-spectroscopic and molecular modeling techniques. J Biomol Struct Dyn 2019; 37:4614-4631. [DOI: 10.1080/07391102.2018.1557557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Muntjeeb M. Syed
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, India
| | - Pooja. J. Doshi
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, India
| | - Mohan V. Kulkarni
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, India
| | - Dilip D. Dhavale
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, India
| | - Nitin S. Kadam
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Pune, India
| | - Sudam L. Kate
- Maharashtra Arogya Mandal’s Sumatibhai Shah Ayurved Mahavidyalaya, College of Ayurveda and Research Centre Hadapsar, Pune, India
| | - Jignesh B. Doshi
- Toxoid Purification Department, Serum Institute of India Ltd., Hadapsar, Pune, India
| | - Neeru Sharma
- HPC Medical and Bioinformatics Applications Group, Centre for Development of Advanced Computing, Savitribai Phule Pune University Campus, Pune, India
| | - Mallikarjunachari Uppuladinne
- HPC Medical and Bioinformatics Applications Group, Centre for Development of Advanced Computing, Savitribai Phule Pune University Campus, Pune, India
| | - Uddhavesh Sonavane
- HPC Medical and Bioinformatics Applications Group, Centre for Development of Advanced Computing, Savitribai Phule Pune University Campus, Pune, India
| | - Rajendra Joshi
- HPC Medical and Bioinformatics Applications Group, Centre for Development of Advanced Computing, Savitribai Phule Pune University Campus, Pune, India
| | - Saurav J. Doshi
- Institute of Bioinformatics & Biotechnology (IBB), Savitribai Phule Pune University, Pune, India
| | - Nandika Bhattacharya
- Institute of Bioinformatics & Biotechnology (IBB), Savitribai Phule Pune University, Pune, India
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24
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Berić JD, Stojanović SD, Mrkalić EM, Matović ZD, Milovanović DR, Sovrlić MM, Jelić RM. Interaction of haloperidol with human serum albumin and effect of metal ions on the binding. MONATSHEFTE FUR CHEMIE 2018. [DOI: 10.1007/s00706-018-2310-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Characterization of the structural changes of human serum albumin upon interaction with single-walled and multi-walled carbon nanotubes: spectroscopic and molecular modeling approaches. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3608-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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26
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Meti MD, Xu Y, Xie J, Chen Y, Wu Z, Liu J, Han Q, He Z, Hu Z, Xu H. Multi-spectroscopic studies on the interaction between traditional Chinese herb, helicid with pepsin. Mol Biol Rep 2018; 45:1637-1646. [DOI: 10.1007/s11033-018-4306-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 08/10/2018] [Indexed: 11/30/2022]
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27
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Ansari SS, Yousuf I, Arjmand F, Siddiqi MK, Naqvi S. Exploring the intermolecular interactions and contrasting binding of flufenamic acid with hemoglobin and lysozyme: A biophysical and docking insight. Int J Biol Macromol 2018; 116:1105-1118. [DOI: 10.1016/j.ijbiomac.2018.05.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 04/22/2018] [Accepted: 05/10/2018] [Indexed: 12/13/2022]
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28
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Qi Z, Xia P, Pan S, Zheng S, Fu C, Chang Y, Ma Y, Wang J, Yang X. Combined treatment with electrical stimulation and insulin-like growth factor-1 promotes bone regeneration in vitro. PLoS One 2018; 13:e0197006. [PMID: 29746517 PMCID: PMC5944947 DOI: 10.1371/journal.pone.0197006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 04/24/2018] [Indexed: 12/12/2022] Open
Abstract
Electrical stimulation (ES) and insulin-like growth factor-1 (IGF-1) are widely used in bone regeneration because of their osteogenic activity. However, the combined effects of ES and supplemental IGF-1 on the whole bone formation process remain unclear. In this study, fluorescence staining and an MTT assay were first utilized to observe the influence of ES and IGF-1 on MC3T3-E1 cell proliferation and adhesion in vitro. Subsequently, osteogenic differentiation was evaluated by the alkaline phosphatase activity (ALP) and the expression of osteogenic marker genes. In addition, cell mineralization was determined by alizarin red staining and scanning electron microscopy (SEM). We demonstrated that the MC3T3-E1 cell proliferation was significantly higher for treatments combining IGF-1 and ES than for treatments with IGF-1 alone. The combination of IGF-1 and ES increased the MC3T3-E1 cell ALP activity, the expression of osteogenesis-related genes and the calcium deposition with a clear dose-dependent effect. Our data show the synergistic effect of IGF-1 and ES in promoting the proliferation, differentiation and mineralization of MC3T3-E1 cells, which suggests that it would be more effective to combine the proper dose of IGF-1 with ES to promote local bone damage repair and regeneration.
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Affiliation(s)
- Zhiping Qi
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, PR China
| | - Peng Xia
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, PR China
| | - Su Pan
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, PR China
| | - Shuang Zheng
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, PR China
| | - Chuan Fu
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, PR China
| | - Yuxin Chang
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, PR China
| | - Yue Ma
- Department of Gynecological Oncology, the First Hospital of Jilin University, Changchun, PR China
| | - Jincheng Wang
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, PR China
- * E-mail: (JW); (XY)
| | - Xiaoyu Yang
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, PR China
- * E-mail: (JW); (XY)
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29
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Kallubai M, Reddy SP, Dubey S, Ramachary DB, Subramanyam R. Spectroscopic evaluation of synthesized 5β-dihydrocortisol and 5β-dihydrocortisol acetate binding mechanism with human serum albumin and their role in anticancer activity. J Biomol Struct Dyn 2018; 37:623-640. [PMID: 29375009 DOI: 10.1080/07391102.2018.1433554] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Our study focus on the biological importance of synthesized 5β-dihydrocortisol (Dhc) and 5β-dihydrocortisol acetate (DhcA) molecules, the cytotoxic study was performed on breast cancer cell line (MCF-7) normal human embryonic kidney cell line (HEK293), the IC50 values for MCF-7 cells were 28 and 25 μM, respectively, whereas no toxicity in terms of cell viability was observed with HEK293 cell line. Further experiment proved that Dhc and DhcA induced 35.6 and 37.7% early apoptotic cells and 2.5, 2.9% late apoptotic cells, respectively, morphological observation of cell death through TUNEL assay revealed that Dhc and DhcA induced apoptosis in MCF-7 cells. The complexes of HSA-Dhc and HSA-DhcA were observed as static quenching, and the binding constants (K) was 4.7 ± .03 × 104 M-1 and 3.9 ± .05 × 104 M-1, and their binding free energies were found to be -6.4 and -6.16 kcal/mol, respectively. The displacement studies confirmed that lidocaine 1.4 ± .05 × 104 M-1 replaced Dhc, and phenylbutazone 1.5 ± .05 × 104 M-1 replaced by DhcA, which explains domain I and domain II are the binding sites for Dhc and DhcA. Further, FT-IR, synchronous spectroscopy, and CD results revealed that the secondary structure of HSA was altered in the presence of Dhc and DhcA. Furthermore, the atomic force microscopy and transmission electron microscopy showed that the dimensions like height and molecular size of the HSA-Dhc and HSA-DhcA complex were larger compared to HSA alone. Detailed analysis through molecular dynamics simulations also supported greater stability of HSA-Dhc and HSA-DhcA complexes, and root-mean-square-fluctuation interpreted the binding site of Dhc as domain IB and domain IIA for DhcA. This information is valuable for further development of steroid derivative with improved pharmacological significance as novel anti-cancer drugs.
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Affiliation(s)
- Monika Kallubai
- a Department of Plant Sciences, School of Life Sciences , University of Hyderabad , Hyderabad 500046 , India
| | - Srinivasa P Reddy
- b Catalysis Laboratory, School of Chemistry , University of Hyderabad , Hyderabad 500046 , India
| | - Shreya Dubey
- a Department of Plant Sciences, School of Life Sciences , University of Hyderabad , Hyderabad 500046 , India
| | - Dhevalapally B Ramachary
- b Catalysis Laboratory, School of Chemistry , University of Hyderabad , Hyderabad 500046 , India
| | - Rajagopal Subramanyam
- a Department of Plant Sciences, School of Life Sciences , University of Hyderabad , Hyderabad 500046 , India
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30
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Sengupta B, Acharyya A, Sen P. Elucidation of the local dynamics of domain-III of human serum albumin over the ps-μs time regime using a new fluorescent label. Phys Chem Chem Phys 2018; 18:28548-28555. [PMID: 27711622 DOI: 10.1039/c6cp05743h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The ps-μs dynamics of domain-III of human serum albumin (HSA) has been investigated using a new fluorescent marker selectively labeled to the Tyr-411 residue. The location of the marker has been confirmed using Förster resonance energy transfer (FRET) study. Steady state, time-resolved and single molecular level fluorescence techniques have been employed to understand the dynamics within the domain-III of HSA. It is found that solvent reorganization dynamics in domain-III is 1.7 times faster than that in domain-I. The timescale of the local rotational dynamics of domain-III is found to be 2.3 times faster than that of domain-I. Fluorescence correlation spectroscopic experiments reveal that domain-III of HSA has more conformational flexibility than domain-I. Together, the results deliver useful details of the local environment around the domain-III of HSA, which have not been explored earlier, mainly because of a lack of a suitable fluorescent marker for domain-III. The newly synthesized probe serves well as a site specific fluorescent marker for HSA, and can be used for further investigation of the ligand binding properties and enzymatic activity of domain-III of HSA.
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Affiliation(s)
- Bhaswati Sengupta
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208 016, UP, India.
| | - Arusha Acharyya
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208 016, UP, India.
| | - Pratik Sen
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208 016, UP, India.
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31
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Żurawska-Płaksej E, Rorbach-Dolata A, Wiglusz K, Piwowar A. The effect of glycation on bovine serum albumin conformation and ligand binding properties with regard to gliclazide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 189:625-633. [PMID: 28888191 DOI: 10.1016/j.saa.2017.08.071] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 08/11/2017] [Accepted: 08/31/2017] [Indexed: 06/07/2023]
Abstract
Albumin, the major serum protein, plays a variety of functions, including binding and transporting endogenous and exogenous ligands. Its molecular structure is sensitive to different environmental modifiers, among which glucose is one of the most significant. In vivo albumin glycation occurs under physiological conditions, but it is increased in diabetes. Since bovine serum albumin (BSA) may serve as a model protein in in vitro experiments, we aimed to investigate the impact of glucose-mediated BSA glycation on the binding capacity towards gliclazide, as well as the ability of this drug to prevent glycation of the BSA molecule. To reflect normo- and hyperglycemia, the conditions of the glycation process were established. Structural changes of albumin after interaction with gliclazide (0-14μM) were determined using fluorescence quenching and circular dichroism spectroscopy. Moreover, thermodynamic parameters as well as energy transfer parameters were determined. Calculated Stern-Volmer quenching constants, as well as binding constants for the BSA-gliclazide complex, were lower for the glycated form of albumin than for the unmodified protein. The largest, over 2-fold, decrease in values of binding parameters was observed for the sample with 30mM of glucose, reflecting the poorly controlled diabetic state, which indicates that the degree of glycation had a critical influence on binding with gliclazide. In contrast to significant changes in the tertiary structure of BSA upon binding with gliclazide, only slight changes in the secondary structure were observed, which was reflected by about a 3% decrease of the α-helix content of glycated BSA (regardless of glucose concentration) in comparison to unmodified BSA. The presence of gliclazide during glycation did not affect its progress. The results of this study indicate that glycation significantly changed the binding ability of BSA towards gliclazide and the scale of these changes depended on glucose concentration. It may have a direct impact on the free drug fraction and its pharmacokinetic behavior, including the risk of hypoglycemic episodes or unexpected interactions with other ligands. The use of BSA in examining binding effects upon glycation seems to be good model for preliminary research and may be used to identify a potential drug response in a diabetic state.
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Affiliation(s)
- Ewa Żurawska-Płaksej
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland.
| | - Anna Rorbach-Dolata
- Department of Toxicology, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland
| | - Katarzyna Wiglusz
- Department of Analytical Chemistry, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211 A, 50-566 Wrocław, Poland.
| | - Agnieszka Piwowar
- Department of Toxicology, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland.
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Hadian Rasanani S, Eslami Moghadam M, Soleimani E, Divsalar A, Tarlani A. Improving activity of anticancer oxalipalladium analog by the modification of oxalate group with isopentylglycine. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1395417] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sara Hadian Rasanani
- Inorganic Chemistry Research Laboratory, Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran
| | | | - Esmaiela Soleimani
- Inorganic Chemistry Research Laboratory, Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran
| | - Adeleh Divsalar
- Faculty of Biological Sciences, Department of Cell & Molecular Biology, Kharazmi University, Tehran, Iran
| | - Aliakbar Tarlani
- Chemistry & Chemical Engineering Research Center of Iran, Tehran, Iran
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de Oliveira SC, Monteiro JS, Pires-Santos GM, Sampaio FJP, Soares AP, Soares LGP, Pinheiro AL. LED antimicrobial photodynamic therapy with phenothiazinium dye against Staphylococcus aureus : An in vitro study. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 175:46-50. [DOI: 10.1016/j.jphotobiol.2017.08.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 08/16/2017] [Accepted: 08/21/2017] [Indexed: 11/28/2022]
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Roy AS, Samanta SK, Ghosh P, Tripathy DR, Ghosh SK, Dasgupta S. Cell cytotoxicity and serum albumin binding capacity of the morin-Cu(ii) complex and its effect on deoxyribonucleic acid. MOLECULAR BIOSYSTEMS 2017; 12:2818-33. [PMID: 27345944 DOI: 10.1039/c6mb00344c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The dietary components, flavonoids, are important for their anti-oxidant properties and the ability to act as metal ion chelators. The characterization of the morin-Cu(ii) complex is executed using elemental analysis, FTIR and mass spectroscopy. DNA cleaving and cell cytotoxicity properties followed by serum albumin binding have been investigated in this report. The morin-Cu(ii) complex was found to cleave plasmid pBR322 DNA via an oxidative pathway as revealed by agarose gel based assay performed in the presence of some scavengers and reactive oxygen species. The breaking of the deoxyribose ring of calf thymus DNA (ct-DNA) was also confirmed by the formation of thiobarbituric acid reacting species (TBARS) between thiobarbituric acid and malonaldehyde. The morin-Cu(ii) complex is able to inhibit the growth of human HeLa cells. Fluorescence studies revealed that the morin-Cu(ii) complex can quench the intrinsic fluorescence of serum albumins (SAs) via a static quenching method. The binding constants were found to be in the order of 10(5) M(-1) and observed to increase with temperature. Both ΔH° and ΔS° are positive for the binding of the morin-Cu(ii) complex with serum albumins which indicated the presence of hydrophobic forces. Site-selectivity studies reveal that the morin-Cu(ii) complex binds to both site 1 (subdomain IIA) and site 2 (subdomain IIIA) of human serum albumin (HSA) and bovine serum albumin (BSA). Circular dichroism (CD) studies showed the structural perturbation of SAs during binding with the morin-Cu(ii) complex. The results from binding studies confirmed that after complexation with the Cu(ii) ion, morin alters its mode of interaction with SAs which could have differential implications on its other biological and pharmaceutical properties.
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Affiliation(s)
- Atanu Singha Roy
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India.
| | - Sintu Kumar Samanta
- Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India
| | - Pooja Ghosh
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India.
| | - Debi Ranjan Tripathy
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India.
| | - Sudip Kumar Ghosh
- Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India
| | - Swagata Dasgupta
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India.
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Paul BK, Guchhait N, Bhattacharya SC. Binding of ciprofloxacin to bovine serum albumin: Photophysical and thermodynamic aspects. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 172:11-19. [DOI: 10.1016/j.jphotobiol.2017.04.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 04/24/2017] [Indexed: 12/15/2022]
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Venturini D, de Souza AR, Caracelli I, Morgon NH, da Silva-Filho LC, Ximenes VF. Induction of axial chirality in divanillin by interaction with bovine serum albumin. PLoS One 2017; 12:e0178597. [PMID: 28575123 PMCID: PMC5456067 DOI: 10.1371/journal.pone.0178597] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 05/16/2017] [Indexed: 11/18/2022] Open
Abstract
Vanillin is a plant secondary metabolite and has numerous beneficial health applications. Divanillin is the homodimer of vanillin and used as a taste enhancer compound and also a promissory anticancer drug. Here, divanillin was synthesized and studied in the context of its interaction with bovine serum albumin (BSA). We found that divanillin acquires axial chirality when complexed with BSA. This chiroptical property was demonstrated by a strong induced circular dichroism (ICD) signal. In agreement with this finding, the association constant between BSA and divanillin (3.3 x 105 mol-1L) was higher compared to its precursor vanillin (7.3 x 104 mol-1L). The ICD signal was used for evaluation of the association constant, demonstration of the reversibility of the interaction and determination of the binding site, revealing that divanillin has preference for Sudlow's site I in BSA. This property was confirmed by displacement of the fluorescent markers warfarin (site I) and dansyl-L-proline (site II). Molecular docking simulation confirmed the higher affinity of divanillin to site I. The highest scored conformation obtained by docking (dihedral angle 242°) was used for calculation of the circular dichroism spectrum of divanillin using Time-Dependent Density Functional Theory (TDDFT). The theoretical spectrum showed good similarity with the experimental ICD. In summary, we have demonstrated that by interacting with the chiral cavities in BSA, divanillin became a atropos biphenyl, i.e., the free rotation around the single bound that links the aromatic rings was impeded. This phenomenon can be explained considering the interactions of divanillin with amino acid residues in the binding site of the protein. This chiroptical property can be very useful for studying the effects of divanillin in biological systems. Considering the potential pharmacological application of divanillin, these findings will be helpful for researchers interested in the pharmacological properties of this compound.
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Affiliation(s)
- Diego Venturini
- Department of Chemistry, Faculty of Sciences, UNESP—São Paulo State University, Bauru, São Paulo, Brazil
| | | | - Ignez Caracelli
- BioMat, Department of Physics, Federal University of São Carlos, São Carlos, São Paulo, Brazil
| | - Nelson Henrique Morgon
- Department of Physical Chemistry, Institute of Chemistry, Campinas State University (UNICAMP), Campinas, São Paulo, Brazil
| | - Luiz Carlos da Silva-Filho
- Department of Chemistry, Faculty of Sciences, UNESP—São Paulo State University, Bauru, São Paulo, Brazil
| | - Valdecir Farias Ximenes
- Department of Chemistry, Faculty of Sciences, UNESP—São Paulo State University, Bauru, São Paulo, Brazil
- * E-mail:
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Jing JJ, Liu B, Wang X, Wang X, He LL, Guo XY, Xu ML, Li QY, Gao B, Dong BY. Binding of fluphenazine with human serum albumin in the presence of rutin and quercetin: An evaluation of food-drug interaction by spectroscopic techniques. LUMINESCENCE 2017; 32:1056-1065. [DOI: 10.1002/bio.3291] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/05/2017] [Accepted: 01/09/2017] [Indexed: 01/03/2023]
Affiliation(s)
- Jiao-Jiao Jing
- School of Pharmaceutical Sciences; Liaoning University; Shenyang China
| | - Bin Liu
- School of Pharmaceutical Sciences; Liaoning University; Shenyang China
- Liaoning Provincial Engineering Research Center for Natural Products Pharmaceutical; Shenyang China
- Liaoning Provincial Key Laboratory of New Drug R&D; Shenyang China
| | - Xin Wang
- School of Pharmaceutical Sciences; Liaoning University; Shenyang China
- Liaoning Provincial Engineering Research Center for Natural Products Pharmaceutical; Shenyang China
- Liaoning Provincial Key Laboratory of New Drug R&D; Shenyang China
| | - Xin Wang
- School of Pharmaceutical Sciences; Liaoning University; Shenyang China
- Liaoning Provincial Engineering Research Center for Natural Products Pharmaceutical; Shenyang China
- Liaoning Provincial Key Laboratory of New Drug R&D; Shenyang China
| | - Ling-Ling He
- College of Applied Chemistry; Shenyang University of Chemical Technology; Shenyang China
| | - Xue-Yuan Guo
- School of Pharmaceutical Sciences; Liaoning University; Shenyang China
| | - Ming-Ling Xu
- School of Pharmaceutical Sciences; Liaoning University; Shenyang China
| | - Qian-Yu Li
- School of Pharmaceutical Sciences; Liaoning University; Shenyang China
| | - Bo Gao
- School of Pharmaceutical Sciences; Liaoning University; Shenyang China
| | - Bo-Yang Dong
- School of Pharmaceutical Sciences; Liaoning University; Shenyang China
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38
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Marouzi S, Sharifi Rad A, Beigoli S, Teimoori Baghaee P, Assaran Darban R, Chamani J. Study on effect of lomefloxacin on human holo-transferrin in the presence of essential and nonessential amino acids: Spectroscopic and molecular modeling approaches. Int J Biol Macromol 2017; 97:688-699. [DOI: 10.1016/j.ijbiomac.2017.01.047] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 01/09/2017] [Accepted: 01/10/2017] [Indexed: 01/08/2023]
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He K, Ma Y, Yang B, Liang C, Chen X, Cai C. The efficacy assessments of alkylating drugs induced by nano-Fe 3O 4/CA for curing breast and hepatic cancer. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:82-86. [PMID: 27599192 DOI: 10.1016/j.saa.2016.08.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 08/12/2016] [Accepted: 08/24/2016] [Indexed: 05/19/2023]
Abstract
A new method to evaluate the anticancer activity at the molecular level has been developed. In our assay, the interaction between alkylating anticancer drugs-Fe3O4/CA with DNA has been investigated for the Resonance Light Scattering (RLS) signal enhancement. Water-based nano-Fe3O4, as a probe, has the ability of good solubility, biodegradability and low bulk resistivity etc. The experimental results show that, the activity order of three kinds of drugs is Nimustine (ACNU)>Semustine (Me-CCNU)>Chlormethine (HN2), which is satisfied with the results of the cell apoptosis experiment and the IC50 by MTT method. This assay is simple, sensitive and high efficient. And the theoretical basics for the development of new anticancer drugs as well as the assessments of their efficacy to cure breast and hepatic cancer have been provided.
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Affiliation(s)
- Kui He
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Ying Ma
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China; Avic Aviation Powerplant Research Institute, Zhuzhou, Hunan 412002, China
| | - Bin Yang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Caishuang Liang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Xiaoming Chen
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Changqun Cai
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China.
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40
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Sengupta B, Das N, Sen P. Elucidation of μs dynamics of domain-III of human serum albumin during the chemical and thermal unfolding: A fluorescence correlation spectroscopic investigation. Biophys Chem 2017; 221:17-25. [DOI: 10.1016/j.bpc.2016.11.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/09/2016] [Accepted: 11/16/2016] [Indexed: 11/17/2022]
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41
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Chandel TI, Rabbani G, Khan M, Zaman M, Alam P, E. Shahein Y, Hasan Khan R. Binding of anti-cardiovascular drug to serum albumin: an insight in the light of spectroscopic and computational approaches. J Biomol Struct Dyn 2016; 36:54-67. [DOI: 10.1080/07391102.2016.1266968] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Tajalli Ilm Chandel
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Gulam Rabbani
- School of Medical Biotechnology, YeungNam University, Gyeongsan, Republic of Korea
| | - MohsinVahid Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Masihuz Zaman
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Parvez Alam
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Yasser E. Shahein
- Molecular Biology Department, Genetic Engineering Division, National Research Centre, Cairo, Egypt
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
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42
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Akram M, Anwar S, Bhat IA, Kabir-Ud-Din. Unraveling the interaction of hemoglobin with a biocompatible and cleavable oxy-diester-functionalized gemini surfactant. Int J Biol Macromol 2016; 96:474-484. [PMID: 27986633 DOI: 10.1016/j.ijbiomac.2016.11.112] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 11/28/2016] [Accepted: 11/29/2016] [Indexed: 12/20/2022]
Abstract
Surfactant-protein mixtures have attracted considerable research interest in recent years at the interface of chemical biology and medicinal chemistry. Herein, the interaction between a green gemini surfactant (C16-E2O-C16) and a redox protein hemoglobin was examined through a series of in vitro experimental techniques with an attempt to provide a comprehensive knowledge of the surfactant-protein binding interactions. Quantitative appraisal of the fluorescence/CV data showed that the binding of C16-E2O-C16 to Hb leads to the formation of thermodynamically favorable non-covalent adduct with 1:1 stoichiometry. UV-vis spectra demonstrated that the effect of C16-E2O-C16 on Hb is highly concentration dependent. Far-UV and near-UV CD spectra together elucidated the formation of molten globule state of Hb upon C16-E2O-C16 addition. Temperature dependent CD explicated the effect of C16-E2O-C16 on the thermal stability of Hb. Furthermore, the structural investigation of Hb via pyrene/synchronous/three-dimensional fluorescence and FT-IR spectroscopy provided the complementary information related to its microenvironmental and conformational changes. Computational studies delineated that C16-E2O-C16 binds in the vicinity of β-37 Trp at the α1β2 interface of Hb. Overall, this study is expected to clarify the binding mechanism between Hb/other congeners and surfactant at the molecular level that are known to have immense potential in biomedical and industrial areas.
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Affiliation(s)
- Mohd Akram
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Sana Anwar
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
| | - Imtiyaz Ahmad Bhat
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
| | - Kabir-Ud-Din
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
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Naeeminejad S, Assaran Darban R, Beigoli S, Saberi MR, Chamani J. Studying the interaction between three synthesized heterocyclic sulfonamide compounds with hemoglobin by spectroscopy and molecular modeling techniques. J Biomol Struct Dyn 2016; 35:3250-3267. [DOI: 10.1080/07391102.2016.1252283] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Samane Naeeminejad
- Faculty of Sciences, Department of Biochemistry and Biophysics, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Reza Assaran Darban
- Faculty of Sciences, Department of Biochemistry and Biophysics, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Sima Beigoli
- Faculty of Sciences, Department of Biochemistry and Biophysics, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Mohammad Reza Saberi
- Medical Chemistry Department, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Jamshidkhan Chamani
- Faculty of Sciences, Department of Biochemistry and Biophysics, Mashhad Branch, Islamic Azad University, Mashhad, Iran
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44
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Dong X, Fan Y, Yang P, Kong J, Li D, Miao J, Hua S, Hu C. Ultraviolet-Visible (UV-Vis) and Fluorescence Spectroscopic Investigation of the Interactions of Ionic Liquids and Catalase. APPLIED SPECTROSCOPY 2016; 70:1851-1860. [PMID: 27324424 DOI: 10.1177/0003702816653124] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 03/22/2016] [Indexed: 06/06/2023]
Abstract
The inhibitory effects of nine ionic liquids (ILs) on the catalase activity were investigated using fluorescence, absorption ultraviolet-visible spectroscopy. The interactions of ILs and catalase on the molecular level were studied. The experimental results indicated that ILs could inhibit the catalase activity and their inhibitory abilities depended on their chemical structures. Fluorescence experiments showed that hydrogen bonding played an important role in the interaction process. The inhibitory abilities of ILs on catalase activity could be simply described by their hydrophobicity and hydrogen bonding abilities. Unexpected less inhibitory effects of trifluoromethanesulfonate (TfO-) might be ascribed to its larger size, which makes it difficult to go through the substrate channel of catalase to the active site.
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Affiliation(s)
- Xing Dong
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Yunchang Fan
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Peng Yang
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Jichuan Kong
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Dandan Li
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Juan Miao
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Shaofeng Hua
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Chaobing Hu
- College of Physics and Chemistry, Henan Polytechnic University, China
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45
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Siddiqi MK, Shahein YE, Hussein N, Khan RH. Effect of surfactants on Ra-sHSPI – A small heat shock protein from the cattle tick Rhipicephalus annulatus. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.04.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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46
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Studies on the interaction between promethazine and human serum albumin in the presence of flavonoids by spectroscopic and molecular modeling techniques. Colloids Surf B Biointerfaces 2016; 145:820-829. [PMID: 27315330 DOI: 10.1016/j.colsurfb.2016.06.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 05/31/2016] [Accepted: 06/01/2016] [Indexed: 12/23/2022]
Abstract
Fluorescence, absorption, time-correlated single photon counting (TCSPC), and circular dichroism (CD) spectroscopic techniques as well as molecular modeling methods were used to study the binding characterization of promethazine (PMT) to human serum albumin (HSA) and the influence of flavonoids, rutin and baicalin, on their affinity. The results indicated that the fluorescence quenching mechanism of HSA by PMT is a static quenching due to the formation of complex. The reaction was spontaneous and mainly mediated by hydrogen bonds and hydrophobic interactions. The binding distance between the tryptophan residue of HSA and PMT is less than 8nm, which indicated that the energy transfer from the tryptophan residue of HSA to PMT occurred. The binding site of PMT on HSA was located in sites I and the presence of PMT can cause the conformational changes of HSA. There was the competitive binding to HSA between PMT and flavonoids because of the overlap of binding sites in HSA. The flavonoids could decrease the association constant and increase the binding distance. In addition, their synergistic effect can further change the conformation of HSA. The decrease in the affinities of PMT binding to HSA in the presence of flavonoids may lead to the increase of free drug in blood, which would affect the transportation or disposition of drug and evoke an adverse or toxic effect. Hence, rationalising dosage and diet regimens should be taken into account in clinical application of PMT.
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Tanvir S, Thuróczy G, Selmaoui B, Silva Pires Antonietti V, Sonnet P, Arnaud-Cormos D, Lévêque P, Pulvin S, de Seze R. Effects of 3G cell phone exposure on the structure and function of the human cytochrome P450 reductase. Bioelectrochemistry 2016; 111:62-9. [PMID: 27243445 DOI: 10.1016/j.bioelechem.2016.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 05/10/2016] [Accepted: 05/10/2016] [Indexed: 11/29/2022]
Abstract
Cell phones increase exposure to radiofrequency (RF) electromagnetic fields (EMFs). Whether EMFs exert specific effects on biological systems remains debatable. This study investigated the effect of cell phone exposure on the structure and function of human NADPH-cytochrome P450 reductase (CPR). CPR plays a key role in the electron transfer to cytochrome P450, which takes part in a wide range of oxidative metabolic reactions in various organisms from microbes to humans. Human CPR was exposed for 60min to 1966-MHz RF inside a transverse electromagnetic cell (TEM-cell) placed in an incubator. The specific absorption rate (SAR) was 5W·kg(-1). Conformation changes have been detected through fluorescent spectroscopy of flavin and tryptophan residues, and investigated through circular dichroism, dynamic light scattering and microelectrophoresis. These showed that CPR was narrowed. By using cytochrome C reductase activity to assess the electron flux through the CPR, the Michaelis Menten constant (Km) and the maximum initial velocity (Vmax) decreased by 22% as compared with controls. This change was due to small changes in the tertiary and secondary structures of the protein at 37°C. The relevance of these findings to an actual RF exposure scenario demands further biochemical and in-vivo confirmation.
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Affiliation(s)
- Shazia Tanvir
- Sorbonne Universités, Université de Technologie de Compiègne, Laboratoire de Génie Enzymatique et Cellulaire, FRE CNRS 3580, CS60319, 60203 Compiègne Cedex. France
| | - György Thuróczy
- Unité de toxicologie expérimentale TOXI-PériTox UMR-I 01, Institut National de l'Environnement Industriel et des RISques (INERIS), Parc ALATA BP2, 60 550, Verneuil-en-Halatte, France; PériTOX, UPJV, Faculté de Médecine, 80 000 Amiens, France
| | - Brahim Selmaoui
- Unité de toxicologie expérimentale TOXI-PériTox UMR-I 01, Institut National de l'Environnement Industriel et des RISques (INERIS), Parc ALATA BP2, 60 550, Verneuil-en-Halatte, France; PériTOX, UPJV, Faculté de Médecine, 80 000 Amiens, France
| | - Viviane Silva Pires Antonietti
- Université de Picardie Jules Verne, Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources, UMR CNRS 7378, UFR de Pharmacie, 80 037, Amiens, France
| | - Pascal Sonnet
- Université de Picardie Jules Verne, Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources, UMR CNRS 7378, UFR de Pharmacie, 80 037, Amiens, France
| | | | - Philippe Lévêque
- Université de Limoges, CNRS, XLIM, UMR 7252, F-87000, Limoges, France
| | - Sylviane Pulvin
- Sorbonne Universités, Université de Technologie de Compiègne, Laboratoire de Génie Enzymatique et Cellulaire, FRE CNRS 3580, CS60319, 60203 Compiègne Cedex. France
| | - René de Seze
- Unité de toxicologie expérimentale TOXI-PériTox UMR-I 01, Institut National de l'Environnement Industriel et des RISques (INERIS), Parc ALATA BP2, 60 550, Verneuil-en-Halatte, France; PériTOX, UPJV, Faculté de Médecine, 80 000 Amiens, France.
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Saha C, Kaushik A, Das A, Pal S, Majumder D. Anthracycline Drugs on Modified Surface of Quercetin-Loaded Polymer Nanoparticles: A Dual Drug Delivery Model for Cancer Treatment. PLoS One 2016; 11:e0155710. [PMID: 27196562 PMCID: PMC4873127 DOI: 10.1371/journal.pone.0155710] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/03/2016] [Indexed: 01/29/2023] Open
Abstract
Polymer nanoparticles are vehicles used for delivery of hydrophobic anti-cancer drugs, like doxorubicin, paclitaxel or chemopreventors like quercetin (Q). The present study deals with the synthesis and characterisation of nano formulations (NFs) from Q loaded PLGA (poly lactic-co-glycolic acid) nano particles (NPs) by surface modification. The surface of Q-loaded (NPs) is modified by coating with biopolymers like bovine serum albumin (BSA) or histones (His). Conventional chemotherapeutic drugs adriamycin (ADR) and mitoxantrone (MTX) are bound to BSA and His respectively before being coated on Q-loaded NPs to nano formulate NF1 and NF2 respectively. The sizes of these NFs are in the range 400–500 nm as ascertained by SEM and DLS measurements. Encapsulation of Q in polymer NPs is confirmed from shifts in FT-IR, TGA and DSC traces of Q-loaded NPs compared to native PLGA and Q. Surface modification in NFs is evidenced by three distinct regions in their TEM images; the core, polymer capsule and the coated surface. Negative zeta potential of Q-loaded NPs shifted to positive potential on surface modification in NF1 and NF2. In vitro release of Q from the NFs lasted up to twenty days with an early burst release. NF2 is better formulation than NF1 as loading of MTX is 85% compared to 23% loading of ADR. Such NFs are expected to overcome multi-drug resistance (MDR) by reaching and treating the target cancerous cells by virtue of size, charge and retention.
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Affiliation(s)
- Chabita Saha
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, BF-142, Salt Lake, Sector-I, Kolkata 700 064, West Bengal, India
- * E-mail:
| | - Agrima Kaushik
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, BF-142, Salt Lake, Sector-I, Kolkata 700 064, West Bengal, India
| | - Asmita Das
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, BF-142, Salt Lake, Sector-I, Kolkata 700 064, West Bengal, India
| | - Sandip Pal
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, BF-142, Salt Lake, Sector-I, Kolkata 700 064, West Bengal, India
| | - Debashis Majumder
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, BF-142, Salt Lake, Sector-I, Kolkata 700 064, West Bengal, India
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Modulation of Osteogenesis in MC3T3-E1 Cells by Different Frequency Electrical Stimulation. PLoS One 2016; 11:e0154924. [PMID: 27149625 PMCID: PMC4858221 DOI: 10.1371/journal.pone.0154924] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 04/21/2016] [Indexed: 11/19/2022] Open
Abstract
Electrical stimulation (ES) is therapeutic to many bone diseases, from promoting fracture regeneration to orthopedic intervention. The application of ES offers substantial therapeutic potential, while optimal ES parameters and the underlying mechanisms responsible for the positive clinical impact are poorly understood. In this study, we assembled an ES cell culture and monitoring device. Mc-3T3-E1 cells were subjected to different frequency to investigate the effect of osteogenesis. Cell proliferation, DNA synthesis, the mRNA levels of osteosis-related genes, the activity of alkaline phosphatase (ALP), and intracellular concentration of Ca2+ were thoroughly evaluated. We found that 100 Hz could up-regulate the mRNA levels of collagen I, collagen II and Runx2. On the contrary, ES could down-regulate the mRNA levels of osteopontin (OPN). ALP activity assay and Fast Blue RR salt stain showed that 100 Hz could accelerate cells differentiation. Compared to the control group, 100 Hz could promote cell proliferation. Furthermore, 1 Hz to 10 Hz could improve calcium deposition in the intracellular matrix. Overall, these results indicate that 100Hz ES exhibits superior potentialities in osteogenesis, which should be beneficial for the clinical applications of ES for the treatment of bone diseases.
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Gheibi N, Asghari H, Chegini KG, Sahmani M, Moghadasi M. The role of calcium in the conformational changes of the recombinant S100A8/S100A91. Mol Biol 2016. [DOI: 10.1134/s0026893315060084] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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