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Li C, Song Z, Huang M, Zheng Y, Nong C, Jiang T, Li Z, Liu H, Yi Z. The molecular mechanisms of TRβ receptor interaction with polychlorinated biphenyls: A multispectral and computational exploration. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 326:125216. [PMID: 39340948 DOI: 10.1016/j.saa.2024.125216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 09/14/2024] [Accepted: 09/23/2024] [Indexed: 09/30/2024]
Abstract
The thyroid hormone (TH) system is susceptible to the toxic effects of polychlorinated biphenyls (PCBs). Pollutants may disrupt the TH system by binding to serum TH transport proteins or interacting with thyroid hormone receptors (TRs) in target cells. However, the molecular mechanism of interaction with the Thyroid Hormone Receptor Beta (TRβ) is not fully understood. This study employed fluorescence, UV-visible absorption, three-dimensional fluorescence, and Fourier-transform infrared spectroscopy, along with molecular docking and molecular dynamics simulations, to investigate the interaction between TRβ and PCBs. Moreover, molecular docking and fluorescence resonance energy transfer (FRET) findings suggest that TRβ and PCBs underwent resonance energy transfer consistent with Förster's theory. The root mean square deviation (RMSD) and docking outcomes indicate that the TRβ-PCB29 complex exhibited optimal structural stability. Thus, the study concludes that integrating spectroscopic data with molecular docking is essential for a comprehensive analysis. Further analysis of intermolecular interactions using quantum chemistry and reduced density gradient analysis (RDG) analysis revealed that van der Waals forces are the primary drivers of PCBs to TRβ.
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Affiliation(s)
- Cancan Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Zeyu Song
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Manting Huang
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Yanhong Zheng
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Chunke Nong
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Tinghao Jiang
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Zhanji Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Hongyan Liu
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China.
| | - Zhongsheng Yi
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China.
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2
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Sahraei A, Ehsanfar A, Mohammadi F. Interaction of gallium, indium and vanadyl diacetylcurcumin complexes with lysozyme: mechanistic aspects and evaluation of antiamyloidogenic activity. ROYAL SOCIETY OPEN SCIENCE 2023; 10:230443. [PMID: 38026032 PMCID: PMC10645073 DOI: 10.1098/rsos.230443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 09/29/2023] [Indexed: 12/01/2023]
Abstract
Diacetylcurcumin as a derivative of curcumin is a strong nitric oxide (NO) and O2-.anion scavenger. One strategy to improve stability of curcumin and its derivatives is complexation with metal. In this study, the binding interactions of gallium diacetylcurcumin (Ga(DAC)3), indium diacetylcurcumin (In(DAC)3), and vanadyl diacetylcurcumin (VO(DAC)2) with hen egg white lysozyme (HEWL) have been investigated. The results of fluorescence quenching analyses revealed that In(DAC)3 and VO(DAC)2 have higher binding affinities than Ga(DAC)3 towards HEWL. The interactions of these metal complexes were not accompanied by considerable conformational changes in the tertiary structure of HEWL. Furthermore, the inhibitory effects of these complexes on the amyloid fibrillation of HEWL were confirmed by the thioflavin T fluorescence assays. The kinetic curves of the fibrillation process illustrated that VO(DAC)2 has the highest inhibitory activity and In(DAC)3 has a significant delaying effect on the formation of amyloid fibrils of HEWL.
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Affiliation(s)
- Amin Sahraei
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Boulevard, Gava Zang, Zanjan 45137-66731, Iran
| | - Ahmad Ehsanfar
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Boulevard, Gava Zang, Zanjan 45137-66731, Iran
| | - Fakhrossadat Mohammadi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 444 Prof. Sobouti Boulevard, Gava Zang, Zanjan 45137-66731, Iran
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3
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Modified Curcumins as Potential Drug Candidates for Breast Cancer: An Overview. Molecules 2022; 27:molecules27248891. [PMID: 36558022 PMCID: PMC9784715 DOI: 10.3390/molecules27248891] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/08/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022] Open
Abstract
Breast cancer (BC), the most common malignancy in women, results from significant alterations in genetic and epigenetic mechanisms that alter multiple signaling pathways in growth and malignant progression, leading to limited long-term survival. Current studies with numerous drug therapies have shown that BC is a complex disease with tumor heterogeneity, rapidity, and dynamics of the tumor microenvironment that result in resistance to existing therapy. Targeting a single cell-signaling pathway is unlikely to treat or prevent BC. Curcumin (a natural yellow pigment), the principal ingredient in the spice turmeric, is well-documented for its diverse pharmacological properties including anti-cancer activity. However, its clinical application has been limited because of its low solubility, stability, and bioavailability. To overcome the limitation of curcumin, several modified curcumin conjugates and curcumin mimics were developed and studied for their anti-cancer properties. In this review, we have focused on the application of curcumin mimics and their conjugates for breast cancer.
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4
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Huang M, Huang X, Yong L, Jia D, Miao W, Liu H, Yi Z. Insight on the microscopic binding mechanism of bisphenol compounds (BPs) with transthyretin (TTR) based on multi-spectroscopic methods and computational simulations. Anal Bioanal Chem 2022; 414:3765-3780. [PMID: 35394160 DOI: 10.1007/s00216-022-04028-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/05/2022] [Accepted: 03/17/2022] [Indexed: 12/15/2022]
Abstract
Thyroid hormones are involved in numerous physiological processes as regulators of metabolism, regulating organ growth, and mental state. Bisphenol compounds (BPs) are recognized as chemicals that interfere with endocrine balance. Because BPs have a similar structure to thyroxine, they can compete for binding to thyroid protein and disrupt the normal physiological activity of the thyroid system. In this study, three typical bisphenol compounds were selected to explore the interaction between BPs and TTR by computer simulations and multi-spectroscopic methods. The results revealed that BPs quenched the endogenous fluorescence of TTR via the combination of static quenching and non-radiative energy transfer, and the van der Waals forces and hydrogen bonding played a synergistic role in the binding process of BPs and TTR. Furthermore, the three-dimensional fluorescence spectroscopy, UV-vis spectroscopy, and Fourier transform infrared (FT-IR) spectroscopy, which were employed to determine the conformation of protein, revealed that binding of BPs with TTR could induce conformational changes in TTR. In addition, the binding sites and the residues surrounding the BPs within the TTR were determined through molecular docking and molecular dynamics simulation. Therefore, this work provides new insights into the interaction between BPs and TTR to evaluate the potential toxicity of BPs.
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Affiliation(s)
- Muwei Huang
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China
| | - Xiaomei Huang
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China
| | - Li Yong
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China
| | - Dan Jia
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China
| | - Wangli Miao
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China
| | - Hongyan Liu
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China.
| | - Zhongsheng Yi
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China.
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5
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Zare Karizak A, Divsalar A, Leilabadi Asl A, Fateminasab F, Shityakov S, Saboury AA. Molecular insights into the interaction of 5-fluorouracil and Fe 3O 4 nanoparticles with beta-casein: An experimental and theoretical study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120538. [PMID: 34749259 DOI: 10.1016/j.saa.2021.120538] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 10/12/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
We investigated the potential carrier of milk beta-casein (β-CN) and its interactions with 5-fluorouracil (5-FU) and iron oxide nanoparticles (Fe3O4 NPs). We used different spectroscopic methods of fluorescence, UV-Visble, circular dichroism (CD), synchronous fluorescence, zeta potential assay, and computational studies to clarify the protein interaction with 5-FU and Fe3O4 NPs. The fluorescence data indicated both Fe3O4 NPs and 5-FU could quench the intrinsic fluorescence of β-CN. Fluorescence measurements showed that the single interaction of β-CN with 5-FU or Fe3O4 NPs was static, while reacted β-CN with both 5-FU and Fe3O4 NPs simultaneously showed a dynamic quenching. Synchronous fluorescence data in both tests revealed that the tryptophan (Trp) residue of β-CN had a dominant role in quenching and the polarity of its microenvironment more than tyrosine (Tyr) increased in interaction with 5-FU. All the binding sites and thermodynamic parameters were obtained at 25, 37, and 42 °C. The analysis of thermodynamic parameters and Job's plot techniques pointed to that both of these complexes with the 1:1 M ratio were exothermic (ΔH°<0) driven with the van der Waals and H-bonding interactions (in agreement with the docking results). The CD spectra in the region of far-UV and thermal denaturation study indicated minor changes in the secondary structure of β-CN in the presence of various concentrations of Fe3O4 NPs and 5-FU. Also, from the molecular dynamics (MD) analysis, as a result, the protein structure was stable during 100 ns. The outcomes highlighted that β-CN protein could form a great bind with 5-FU and Fe3O4 NPs ligands (supporting the zeta potential assay results) by independent binding sites. These results would be helpful insight to construct a potential magnetic nanocarrier β-CN base for 5-FU drug delivery.
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Affiliation(s)
- Ashkan Zare Karizak
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Adeleh Divsalar
- Department of Cell & Molecular Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran.
| | - Amineh Leilabadi Asl
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran 1477893855, Iran
| | | | - Sergey Shityakov
- ITMO University, Infochemistry Scientific Center, Division of Chemoinformatics, Saint-Petersburg 191002, Russian Federation
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
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6
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Sattarinezhad E, Fani N, Bordbar AK, Hatami P, Abbasi Kajani A, Taki M. Probing the physico-chemical, antioxidant and anticancer influence of β-lactoglobulin on dietary flavonoid daidzein. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2021.100643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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7
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Dantas MDDA, Silva MDM, Silva ON, Franco OL, Fensterseifer ICM, Tenório HDA, Pereira HJV, Figueiredo IM, Santos JCC. Interactions of tetracyclines with milk allergenic protein (casein): a molecular and biological approach. J Biomol Struct Dyn 2019; 38:5389-5400. [PMID: 31814537 DOI: 10.1080/07391102.2019.1702587] [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: 01/15/2023]
Abstract
Tetracycline (TC), oxytetracycline (OTC), and chlortetracycline (CTC) interactions with the allergenic milk protein casein (CAS) were here evaluated simulating food conditions. The antibiotics assessed interact with CAS through static quenching and form non-fluorescent complexes. At 30 °C, the binding constant (Kb) varied from 0.05 to 1.23 × 106 M-1. Tetracycline interacts with CAS preferably through electrostatic forces, while oxytetracycline and chlortetracycline interactions occur by hydrogen bonds and van der Waals forces. The interaction process is spontaneous, and the magnitude of interaction based on Kb values, followed the order: TC < CTC < OTC. The distances between the donor (protein) and the receptors (TC, OTC, and CTC) were determined by Förster resonance energy transfer (FRET) and varied from 3.67 to 4.08 nm. Under natural feeding conditions, the citrate decreased the affinity between TC and CAS; a similar effect was observed for OTC in the presence of Ca(II), Fe(III) and lactose. Synchronized and three-dimensional (3D) fluorescence studies indicated alterations in the original protein conformation due to the interaction process, which may influence allergenic processes. In addition, complexation with CAS modulated the antimicrobial activity of CTC against S. aureus, demonstrated that the interaction process possibly alters the biological properties of antibiotics and the own protein, in the food conditions.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | | | - Osmar Nascimento Silva
- S-Inova Biotech, Post-Graduate Program in Biotechnology, Dom Bosco Catholic University, Campo Grande, Brazil
| | - Octavio Luiz Franco
- S-Inova Biotech, Post-Graduate Program in Biotechnology, Dom Bosco Catholic University, Campo Grande, Brazil
| | | | | | - Hugo Juarez V Pereira
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Brazil
| | - Isis M Figueiredo
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Brazil
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8
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Cao X, He Y, Kong Y, Mei X, Huo Y, He Y, Liu J. Elucidating the interaction mechanism of eriocitrin with β-casein by multi-spectroscopic and molecular simulation methods. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.03.006] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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9
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Binding analysis between monomeric β-casein and hydrophobic bioactive compounds investigated by surface plasmon resonance and fluorescence spectroscopy. Food Chem 2019; 286:289-296. [DOI: 10.1016/j.foodchem.2019.01.176] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 01/12/2019] [Accepted: 01/28/2019] [Indexed: 11/18/2022]
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10
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Shaikh SAM, Singh BG, Barik A, Ramani MV, Balaji NV, Subbaraju GV, Naik DB, Indira Priyadarsini K. Diketo modification of curcumin affects its interaction with human serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 199:394-402. [PMID: 29635184 DOI: 10.1016/j.saa.2018.03.085] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 03/26/2018] [Accepted: 03/30/2018] [Indexed: 06/08/2023]
Abstract
Curcumin isoxazole (CI) and Curcumin pyrazole (CP), the diketo modified derivatives of Curcumin (CU) are metabolically more stable and are being explored for pharmacological properties. One of the requirements in such activities is their interaction with circulatory proteins like human serum albumin (HSA). To understand this, the interactions of CI and CP with HSA have been investigated employing absorption and fluorescence spectroscopy and the results are compared with that of CU. The respective binding constants of CP, CI and CU with HSA were estimated to be 9.3×105, 8.4×105 and 2.5×105M-1, which decreased with increasing salt concentration in the medium. The extent of decrease in the binding constant was the highest in CP followed by CI and CU. This revealed that along with hydrophobic interaction other binding modes like electrostatic interactions operate between CP/CI/CU with HSA. Fluorescence quenching studies of HSA with these compounds suggested that both static and dynamic quenching mechanisms operate, where the contribution of static quenching is higher for CP and CI than that for CU. From fluorescence resonance energy transfer studies, the binding site of CU, CI and CP was found to be in domain IIA of HSA. CU was found to bind in closer proximity with Trp214 as compared to CI and CP and the same was responsible for efficient energy transfer and the same was also established by fluorescence anisotropy measurements. Furthermore docking simulation complemented the experimental observation, where both electrostatic as well as hydrophobic interactions were indicated between HSA and CP, CI and CU. This study is useful in designing more stable CU derivatives having suitable binding properties with proteins like HSA.
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Affiliation(s)
- Shaukat Ali M Shaikh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Beena G Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - Atanu Barik
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | | | - Neduri V Balaji
- Natsol Laboratories, J.N. Pharmacity, Visakhapatnam 531019, India
| | | | - Devidas B Naik
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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11
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Spectroscopic and molecular modeling probing of biophysical influence of β-casein nano-protein on adrenaline and arachidonoyl adrenaline. MONATSHEFTE FUR CHEMIE 2018. [DOI: 10.1007/s00706-017-2103-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Dezhampanah H, Esmaili M, Hasani L. Milk caseins as useful vehicle for delivery of dipyridamole drug. J Biomol Struct Dyn 2017; 36:1602-1616. [DOI: 10.1080/07391102.2017.1329100] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hamid Dezhampanah
- Laboratory of Physical Chemistry, Faculty of Science, Department of Chemistry, University of Guilan, P.O. Box 1914, Rasht 0098, Iran
| | - Masoomeh Esmaili
- Laboratory of Physical Chemistry, Faculty of Science, Department of Chemistry, University of Guilan, P.O. Box 1914, Rasht 0098, Iran
| | - Leila Hasani
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
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13
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Dezhampanah H, Esmaili M, Khorshidi A. Milk β-casein as a vehicle for delivery of bis(indolyl)methane: Spectroscopy and molecular docking studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.01.065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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He Z, Chen J, Moser SE, Jones OG, Ferruzzi MG. Interaction of β-casein with (−)-epigallocatechin-3-gallate assayed by fluorescence quenching: effect of thermal processing temperature. Int J Food Sci Technol 2015. [DOI: 10.1111/ijfs.12977] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhiyong He
- State Key Laboratory of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
| | - Jie Chen
- State Key Laboratory of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
- Synergetic Innovation Center of Food Safety and Nutrition; Jiangnan University; Wuxi Jiangsu 214122 China
| | - Sydney E. Moser
- Department of Food Science; Purdue University; West Lafayette Indiana 47906 USA
| | - Owen G. Jones
- Department of Food Science; Purdue University; West Lafayette Indiana 47906 USA
| | - Mario G. Ferruzzi
- Department of Food Science; Purdue University; West Lafayette Indiana 47906 USA
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15
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Mock CD, Jordan BC, Selvam C. Recent Advances of Curcumin and its Analogues in Breast Cancer Prevention and Treatment. RSC Adv 2015; 5:75575-75588. [PMID: 27103993 PMCID: PMC4836288 DOI: 10.1039/c5ra14925h] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
More than 230,000 diagnosed cases of invasive breast cancer in women was estimated in 2014 and an expected 40,000 deaths attributed to the aggressive carcinoma. An effective approach to diminish the morbidity and mortality of breast cancer is the development of chemopreventive and chemotherapeutic agents. Nutraceuticals have demonstrated their ability to proficiently halt carcinogenesis. The administration of natural compounds able to effectively serve as chemoprevention and chemotherapeutics without causing harm or adverse effects is imperative. Curcumin derived from the rhizome of Curcuma longa L., is a common spice of India, used for centuries because of its medicinal properties. The main component of curcumin possesses a wide range of biological activities; anti-proliferative, anti-inflammatory, and apoptotic characteristics modulated through the inactivation of pathways such as EGK and Akt/mTOR. In addition, curcumin alters the expression of cytokines, transcription factors, and enzymes involved in cell vitality. The in vivo application of curcumin in breast cancer is hindered by its limited bioavailabiity. The synthesis of curcumin analogues and delivery via nanoparticles has demonstrated enhanced bioavailability of curcumin in the malignancy. This review focuses on recent developments in the use of curcumin, curcumin analogues, and novel delivery systems as a preventive and therapeutic method for breast cancer.
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Affiliation(s)
- Charlotta D Mock
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX-77004, USA
| | - Brian C Jordan
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX-77004, USA
| | - Chelliah Selvam
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX-77004, USA
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16
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Zhang R, Sun T, Liu C, Song W, Cao Z, Liu R. New Insights into the Toxicity ofn-Butanol to Trypsin: Spectroscopic and Molecular Docking Descriptions. J Biochem Mol Toxicol 2015; 29:418-425. [DOI: 10.1002/jbt.21711] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/27/2015] [Accepted: 04/01/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Rui Zhang
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Tao Sun
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Chunguang Liu
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Wei Song
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Zhaozhen Cao
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering; Shandong University, China -America CRC for Environment & Health; Jinan 250100 People's Republic of China
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17
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Mohammadi F, Sahihi M, Bordbar AK. Multispectroscopic and molecular modeling studies on the interaction of two curcuminoids with β-lactoglobulin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 140:274-282. [PMID: 25615681 DOI: 10.1016/j.saa.2014.12.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 12/02/2014] [Accepted: 12/09/2014] [Indexed: 06/04/2023]
Abstract
This study demonstrates the binding properties of bisdemethoxycurcumin (BDMC) and diacetylbisdemethoxycurcumin (DABC) as bioactive curcuminoids with bovine β-lactoglobulin (BLG) variant B using fluorescence and circular dichroism (CD) spectroscopy; molecular docking, and molecular dynamics simulation methods. The estimated binding constants for BLG-BDMC and BLG-DABC complexes were (8.99±0.10)×10(4) M(-1) and (1.87±0.10)×10(2) M(-1), respectively. The distances between BLG and these curcuminoids were obtained based on the Förster's theory of non-radiative energy transfer. Molecular docking studies revealed the binding of BDMC and DABC to the protein surface cleft of protein by formation of four and one hydrogen bonds, respectively. Finally, molecular dynamics simulation results represent the conformational changes of BLG due to its interaction with BDMC. Also, the profiles of atomic fluctuations signified the rigidity of ligand binding site during the simulation.
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Affiliation(s)
- F Mohammadi
- Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran; Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Gava Zang, Zanjan 45137-66731, Iran
| | - M Sahihi
- Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran.
| | - A Khalegh Bordbar
- Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran.
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18
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Ge YS, Jin C, Song Z, Zhang JQ, Jiang FL, Liu Y. Multi-spectroscopic analysis and molecular modeling on the interaction of curcumin and its derivatives with human serum albumin: a comparative study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 124:265-76. [PMID: 24491667 DOI: 10.1016/j.saa.2014.01.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 01/01/2014] [Accepted: 01/03/2014] [Indexed: 05/15/2023]
Abstract
The comparative study about the interaction between curcumin and its derivatives (demothxycurcumin and bisdeoxycurcumin) with human serum albumin (HSA) has been carried out using multi-spectroscopic analysis and molecular modeling method. The characteristic of fluorescence quenching and the thermodynamic parameters have been studied by state emission fluorescence experiments under different temperatures with an interval of 6 K. Curcumin shows largest quenching constant and bisdeoxycurcumin shows the smallest at the temperature of 298 K. However, the quenching constant of curcumin drops quickly with the increase of temperature. Demothxycurcumin gives the largest quenching efficiency at the temperature of 310 K. An average distance of 6.7 nm for energy transfer has been determined based on förster resonance energy theory (FRET). The site competitive replacement experiments illustrate three compounds mainly binding on site I (Subdomain IIA) of the protein, and show tendency of binding on site II (Subdomain IIIA) with the removing of methoxyl groups. Circular dichroism spectra and Fourier transform infrared spectroscopy (FTIR) have been used to investigate the influence on protein secondary structure. Content of the α-helix increases at low concentrations of the compounds, while unfolding occurs at high concentrations. Docking simulation reveals possible mechanism for different quenching behavior and binding sites preferred by three compounds. The binding modes have effectively supported the conclusion of the experiments.
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Affiliation(s)
- Yu-Shu Ge
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) & College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Cheng Jin
- Institution of Traditional Chinese Medicine of 302 Military Hospital, Beijing 100039, PR China
| | - Zhe Song
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) & College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Jia-Qi Zhang
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) & College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Feng-Lei Jiang
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) & College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Yi Liu
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) & College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China; College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432100, PR China.
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