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Oni TO, Ayuk EL, Okoro UC. New substituted benzenesulphonamoyl 'Cys-Gly' dipeptide carboxamide derivatives: Design, synthesis, characterization and pharmacological studies. Bioorg Chem 2024; 152:107715. [PMID: 39180864 DOI: 10.1016/j.bioorg.2024.107715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 08/04/2024] [Accepted: 08/09/2024] [Indexed: 08/27/2024]
Abstract
Twelve new sulphonamide (Cys-Gly) dipeptide carboxamide derivatives 17a-17l were designed, prepared and characterized through spectroscopic techniques and their pharmacological properties investigated. The molecular docking analyses revealed good interactions of the derivatives with the desired amino residues active pockets. In vitro antimicrobial, in vivo antimalarial, haematological and other related tests (liver and kidney) were also conducted. Compounds 17b exhibited good minimum inhibitory concentration (MIC) results (0.9-11) mg/mL for the studied organisms when compared with ciprofloxacin and fluconazole. Derivatives 17a -17l showed parasitaemia inhibition in the range (31.11-67.78) % on the fourth day after treating the animals with 40 mg/kg of the compounds. Derivative 17b also displayed the highest parasitaemia inhibition (67.78 %) comparable with the standard (Lumenfantrine) 75.27 %. The prepared derivatives showed promising pharmacological properties with regards to hematological, liver and kidney function tests.
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Affiliation(s)
- Timothy O Oni
- Department of Science Lab. Tech., Delta State Polytechnic, Ugwashi-Uku, Nigeria; Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Enugu State, Nigeria
| | - Eugene L Ayuk
- Industrial Chemistry Unit, Department of Chemical Sciences, Godfrey Okoye University, Thinkers Corner, Enugu State, Nigeria.
| | - Uchechukwu C Okoro
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka 410001, Enugu State, Nigeria
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2
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Pakrashy S, Chakraborty S, Manna S, Nanda Goswami J, Bhattacharya B, Emmerling F, Mandal J, Misra S, Maiti Choudhury S, Okla MK, Bose A, Maurya PK, Majhi A, Dolai M. Inhibition of Human Colorectal Cancer by a Natural Product 7-Acetylhorminone and Interactions with BSA/HSA: Multispectral Analysis and In Silico and In Vitro Studies. ACS APPLIED BIO MATERIALS 2024; 7:3414-3430. [PMID: 38687465 DOI: 10.1021/acsabm.4c00335] [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] [Indexed: 05/02/2024]
Abstract
We have semi-synthesized a natural product 7-acetylhorminone from crude extract of Premna obtusifolia (Indian headache tree), which is active against colorectal cancer after probation through computational screening methods as it passed through the set parameters of pharmacokinetics (most important nonblood-brain barrier permeant) and drug likeliness (e.g., Lipinski's, Ghose's, Veber's rule) which most other phytoconstituents failed to pass combined with docking with EGFR protein which is highly upregulated in the colorectal carcinoma cell. The structure of 7-acetylhorminone was confirmed by single crystal X-ray diffraction studies and 1H NMR, 13C NMR, and COSY studies. To validate the theoretical studies, first, in vitro experiments were carried out against human colorectal carcinoma cell lines (HCT116) which revealed the potent cytotoxic efficacy of 7-acetylhorminone and verified preliminary investigation. Second, the drugability of 7-acetylhorminone interaction with serum albumin proteins (HSA and BSA) is evaluated both theoretically and experimentally via steady-state fluorescence spectroscopic studies, circular dichroism, isothermal titration calorimetry, and molecular docking. In summary, this study reveals the applicability of 7-acetylhorminone as a potent drug candidate or as a combinatorial drug against colorectal cancer.
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Affiliation(s)
- Sourav Pakrashy
- Department of Chemistry, Prabhat Kumar College, Purba Medinipur 721404, W.B., India
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700 073, India
| | - Souvik Chakraborty
- Department of Physiology, Bhairab Ganguly College, 2, Feeder Rd., Beehive Garden, Belghoria, Kolkata, West Bengal 700056, India
| | - Sounik Manna
- Biochemistry, Molecular Endocrinology, and Reproductive Physiology Laboratory, Department of Human Physiology, Vidyasagar University, Midnapore, W.B. 721102, India
| | - Juli Nanda Goswami
- Department of Chemistry, Prabhat Kumar College, Purba Medinipur 721404, W.B., India
| | - Biswajit Bhattacharya
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Franziska Emmerling
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Jishu Mandal
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700032, India
| | - Sourav Misra
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700 073, India
| | - Sujata Maiti Choudhury
- Biochemistry, Molecular Endocrinology, and Reproductive Physiology Laboratory, Department of Human Physiology, Vidyasagar University, Midnapore, W.B. 721102, India
| | - Mohammad K Okla
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Adity Bose
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700 073, India
| | - Pawan Kumar Maurya
- Division of Non-Communicable Diseases, Centre for Ageing and Mental Health, Indian Council of Medical Research, Kolkata 700091, India
| | - Anjoy Majhi
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700 073, India
| | - Malay Dolai
- Department of Chemistry, Prabhat Kumar College, Purba Medinipur 721404, W.B., India
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3
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Sundaray K, Baral B, Subudhi U. DNA polyhedrons cube, prism, and square pyramid protect the catalytic activity of catalase: A thermodynamics and kinetics study. Int J Biol Macromol 2024; 264:130557. [PMID: 38431020 DOI: 10.1016/j.ijbiomac.2024.130557] [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: 01/03/2024] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
DNA is widely used as building block material for the construction of polyhedral nanostructures. DNA polyhedrons (DNA prism, cube, and square pyramid) are small 3D wireframed nanostructures with tunable shapes and sizes. Despite substantial progress in synthesis, the study regarding cellular responses to DNA polyhedrons is limited. Herein, the molecular interaction between DNA polyhedrons and the antioxidant enzyme, catalase has been explored. The enzymatic activity of bovine liver catalase (BLC) remains unaltered in the presence of DNA polyhedrons after 1 h of incubation. However, the activity of BLC was protected after 24 h of incubation in the presence of DNA polyhedrons as compared to the natural unfolding. The kinetics study confirmed the protective role of DNA polyhedrons on BLC with lower KM and higher catalytic efficiency. Furthermore, no profound conformational changes of BLC occur in the presence of DNA polyhedrons as observed in spectroscopic studies. From fluorescence quenching data we confirmed the binding between DNA polyhedrons and BLC. The thermodynamic parameters indicate that non-covalent bonds played a major role during the interaction of BLC with DNA polyhedrons. Moreover, the hepatic catalase activity remains unaltered in the presence of DNA polyhedrons. The cytotoxicity assay revealed that DNA polyhedrons were biocompatible in the cellular environment. The protective role of DNA polyhedrons on enzyme activity and the unaltered conformational change of protein ensures the biocompatibility of DNA polyhedrons in the cellular environment.
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Affiliation(s)
- Kajal Sundaray
- DNA Nanotechnology & Application Laboratory, Environment and Sustainability Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar 751013, Odisha, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Bineeth Baral
- DNA Nanotechnology & Application Laboratory, Environment and Sustainability Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar 751013, Odisha, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Umakanta Subudhi
- DNA Nanotechnology & Application Laboratory, Environment and Sustainability Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar 751013, Odisha, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India.
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4
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Wu D, Zhou J, Shen Y, Lupo C, Sun Q, Jin T, Sturla SJ, Liang H, Mezzenga R. Highly Adhesive Amyloid-Polyphenol Hydrogels for Cell Scaffolding. Biomacromolecules 2023; 24:471-480. [PMID: 36548941 DOI: 10.1021/acs.biomac.2c01311] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Rationally designing microstructures of soft hydrogels for specific biological functionalization is a challenge in tissue engineering applications. A novel and affordable soft hydrogel scaffold is constructed here by incorporating polyphenol modules with lysozyme amyloid fibrils (Lys AFs) via non-covalent self-assembly. Embedded polyphenols not only trigger hydrogel formation but also determine gel behavior by regulating the polyphenol gallol density and complex ratio. The feasibility of using a polyphenol-Lys AF hydrogel as a biocompatible cell scaffold, which is conducive to cell proliferation and spreading, is also shown. Notably, introducing polyphenols imparts the corresponding hydrogels a superior cell bioadhesive efficiency without further biofunctional decoration and thus may be successfully employed in both healthy and cancer cell lines. Confocal laser scanning microscopy also reveals that the highly expressed integrin-mediated focal adhesions form due to stimulation of the polyphenol-AF composite hydrogel, direct cell adhesion, proliferation, and spreading. Overall, this work constitutes a significant step forward in creating highly adhesive tissue culture platforms for in vitro culture of different cell types and may greatly expand prospects for future biomaterial design and development.
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Affiliation(s)
- Di Wu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Department of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland
| | - Jiangtao Zhou
- Department of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland
| | - Yang Shen
- Department of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland
| | - Cristina Lupo
- Department of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland
| | - Qiyao Sun
- Department of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland
| | - Tonghui Jin
- Department of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland
| | - Shana J Sturla
- Department of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland
| | - Hongshan Liang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland.,Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse 10, Zurich 8093, Switzerland
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5
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Oriakhi K, Ibeji CU, Essien EE, Eluehike N, Orumwensodia K, Uadia P, Choudhary IM. In vitro and computational studies on the antiglycation activity of compounds isolated from antidiabetic Tetracera alnifolia stem bark. J Biomol Struct Dyn 2022; 40:9742-9751. [PMID: 34096463 DOI: 10.1080/07391102.2021.1934542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The continuous search for new compounds in natural-based plants is a promising strategy for the prevention of diseases. This work examined antiglycation activity compounds isolated from the antidiabetic extract of T. alnifolia stem bark via in vitro and computational [molecular dynamics (MD)] approach. Phytochemical investigation of ethyl acetate fraction and the application of spectroscopic methods led to the isolation and elucidation of 3 compounds: quercetin (1), kaempferol (2), and gallic acid (3). Compounds 1, 2 and 3 were then screened for antioxidant and antiglycation activities. Results show that the ethanol extract of T. alnifolia demonstrated good antioxidant activity compared to the standard gallic acid. There was a significant reduction in fasting blood glucose level progressively in diabetic rats, for 21 days compared to diabetic control. Consequently, the antiglycation activity of ethyl acetate fraction had the highest antiglycation activities, followed by dichloromethane (DCM) fraction. Compounds isolated from ethyl acetate fraction, exhibited the highest antiglycation effect for kaempferol followed by quercetin, while gallic acid had the least antiglycation effect. The root mean square of deviation (RMSD) and MM/GBSA energies obtained from molecular dynamics agree with the in vitro antiglycation activity with the sequence of structural stability in the order; kaempferol > quercetin > gallic acid. Therefore, findings from these results suggest that compounds isolated from T. alnifolia possess antiglycation activity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Kelly Oriakhi
- Department of Medical Biochemistry, University of Benin, Benin, Nigeria
| | - Collins U Ibeji
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria.,Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | | | - Nkeiruka Eluehike
- Department of Medical Biochemistry, University of Benin, Benin, Nigeria
| | | | - Patrick Uadia
- Department of Biochemistry, University of Benin, Benin, Nigeria
| | - Iqbal M Choudhary
- International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
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6
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Zhou L, Zhou H, Xiao H, Zhang Z, Xiong Z, Tuo X, Guo H. Elucidation on inhibition and binding mechanism of bovine liver catalase by nifedipine: multi-spectroscopic analysis and computer simulation methods. LUMINESCENCE 2022; 37:1547-1556. [PMID: 35816002 DOI: 10.1002/bio.4330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 06/18/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022]
Abstract
Nifedipine (NDP), a dihydropyridine calcium antagonist, is widely used for the treatment of hypertension and angina pectoris. Catalase is a key antioxidant enzyme that is closely relevant to the level of reactive oxygen species (ROS) in vivo. Here, the research explored the effects of NDP on the conformation and catalytic function of bovine liver catalase (BLC) through enzymatic reaction kinetic techniques, multi-spectroscopic analysis and computer simulation method. Kinetic studies clarified that the NDP debased the activity of BLC by non-competitive inhibition mechanism. Based on the data of trials, it was a static quenching mechanism that functioned in the quenching of intrinsic fluorescence of BLC. The binding constant value was (4.486 ± 0.008) × 104 M-1 (298 K) and BLC had one binding site for NDP. Tyr was prone to be exposed more to a hydrophilic environment in wake of a shift in fluorescence value. The binding reaction of BLC to NDP caused the conformational alteration of BLC, which in turn led to increase of the α-helix and decline of β-sheet contents. Furthermore, several amino acids residues interacted with NDP by means of van der Waals forces, whereas Gln397, Asn368, Gln371, Asn384 and Pro377 formed several Hydrogen Bonds with NDP.
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Affiliation(s)
- Like Zhou
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China
| | - Hui Zhou
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China
| | - Huilong Xiao
- School of Pharmacy, Nanchang University, Nanchang, Jiangxi, China
| | - Zihang Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China
| | - Ziyun Xiong
- School of Pharmacy, Nanchang University, Nanchang, Jiangxi, China
| | - Xun Tuo
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China
| | - Hui Guo
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China
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7
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Minchán-Herrera P, Ybañez-Julca RO, Quispe-Díaz IM, Venegas-Casanova EA, Jara-Aguilar R, Salas F, Zevallos-Escobar L, Yáñez O, Pino-Rios R, Calderon PB, Benites J. Valeriana pilosa Roots Essential Oil: Chemical Composition, Antioxidant Activities, and Molecular Docking Studies on Enzymes Involved in Redox Biological Processes. Antioxidants (Basel) 2022; 11:antiox11071337. [PMID: 35883828 PMCID: PMC9311991 DOI: 10.3390/antiox11071337] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/03/2022] [Accepted: 07/04/2022] [Indexed: 02/01/2023] Open
Abstract
Valeriana pilosa is usually employed in Peruvian folk medicine in the form of infusion to treat stomach pain, and has antispasmodic, relaxing, sleep-promoting, and sedative properties, as well as is an anti-inflammatory. In this study, Valeriana pilosa essential oil (VPEO) was obtained by hydrodistillation, analyzed by GC and GC/MS, and 47 compounds were identified. Major oil components were α-patchoulene (5.8%), α-humulene (6.1%), seychellene (7.6%), and patchoulol (20.8%). Furthermore, we assessed the in vitro antioxidant activities, molecular docking, and Ligand Efficiency studies on enzymes involved in cellular redox pathways such as CYP2C9, catalase, superoxide dismutase, and xanthine oxidase. Essential oil antioxidant activities were assessed by FRAP, ABTS•+, and DPPH• radical scavenging activity. VPEO displays high antioxidant activity as compared to essential oils of Valeriana jatamansi and Valeriana officinalis oil roots. In addition, molecular docking and ADMET prediction was employed to compare the absorption, metabolism, and toxicity properties of Valeriana pilosa compounds. In the molecular docking studies, limonene, p-cimene, carvone, α-cubebene, cyclosativene, α-guaiene, allo-aromadendrene, valencene, and eremophyllene were the compounds with the best docking score on CYP2C9 and xanthine oxidase. Thus, volatile components of Valeriana pilosa could be associated with the detected antioxidant activity, acting as putative inhibitors of CYP2C9 and xanthine oxidase.
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Affiliation(s)
- Patricia Minchán-Herrera
- Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo 13011, Peru; (P.M.-H.); (I.M.Q.-D.); (E.A.V.-C.); (R.J.-A.)
| | - Roberto O. Ybañez-Julca
- Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo 13011, Peru; (P.M.-H.); (I.M.Q.-D.); (E.A.V.-C.); (R.J.-A.)
- Correspondence: (R.O.Y.-J.); (J.B.); Tel.: +51-0449-7634-5993 (R.O.Y.-J.); +56-57-2252-6275 (J.B.)
| | - Ivan M. Quispe-Díaz
- Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo 13011, Peru; (P.M.-H.); (I.M.Q.-D.); (E.A.V.-C.); (R.J.-A.)
| | - Edmundo A. Venegas-Casanova
- Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo 13011, Peru; (P.M.-H.); (I.M.Q.-D.); (E.A.V.-C.); (R.J.-A.)
| | - Rafael Jara-Aguilar
- Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo 13011, Peru; (P.M.-H.); (I.M.Q.-D.); (E.A.V.-C.); (R.J.-A.)
| | - Felipe Salas
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile; (F.S.); (P.B.C.)
| | - Liz Zevallos-Escobar
- Escuela de Farmacia y Bioquímica, Universidad Católica Los Ángeles de Chimbote, Chimbote 02801, Peru;
| | - Osvaldo Yáñez
- Facultad de Ingeniería y Negocios, Universidad de las Américas, Santiago 7500000, Chile;
| | - Ricardo Pino-Rios
- Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Santiago 7500912, Chile;
| | - Pedro Buc Calderon
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile; (F.S.); (P.B.C.)
- Research Group in Metabolism and Nutrition, Louvain Drug Research Institute, Université Catholique de Louvain, 73 Avenue E. Mounier, GTOX 7309, 1200 Brussels, Belgium
| | - Julio Benites
- Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo 13011, Peru; (P.M.-H.); (I.M.Q.-D.); (E.A.V.-C.); (R.J.-A.)
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile; (F.S.); (P.B.C.)
- Correspondence: (R.O.Y.-J.); (J.B.); Tel.: +51-0449-7634-5993 (R.O.Y.-J.); +56-57-2252-6275 (J.B.)
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8
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Hao F, Yan XP. Nano-sized zeolite-like metal-organic frameworks induced hematological effects on red blood cell. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127353. [PMID: 34879558 DOI: 10.1016/j.jhazmat.2021.127353] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 05/10/2023]
Abstract
Understanding the toxicity of metal-organic frameworks (MOFs) is important for improving their biocompatibility in further applications, especially the hematotoxicity of MOFs due to the unavoidable contact of MOFs with blood in biomedical science. Here we report the hematotoxicity and underlying mechanisms of nano-sized zeolite-like MOFs ZIF-8 and ZIF-67 because of their wide applications in biomedical science. ZIF-67 induced significant hemolysis of red blood cell (Rb) through breaking the structure of membrane due to the generation of free radicals, whereas ZIF-8 was hematocompatible. ZIF-67 was thus internalized by Rb and then bound with hemoglobin via hydrogen bond and van der Waals force, which influenced the structure and function of hemoglobin in accompany with heme release. These findings reveal the detailed mechanism of the hematological effects of MOFs on Rb and are helpful to the assessment of the toxicity and potential health risks of MOFs and the design of biosafe MOFs for biomedical applications.
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Affiliation(s)
- Fang Hao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiu-Ping Yan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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9
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Erukainure OL, Matsabisa MG, Salau VF, Oyedemi SO, Oyenihi OR, Ibeji CU, Islam MS. Cannabis sativa L. (var. indica) Exhibits Hepatoprotective Effects by Modulating Hepatic Lipid Profile and Mitigating Gluconeogenesis and Cholinergic Dysfunction in Oxidative Hepatic Injury. Front Pharmacol 2021; 12:705402. [PMID: 34992528 PMCID: PMC8724532 DOI: 10.3389/fphar.2021.705402] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 11/22/2021] [Indexed: 12/21/2022] Open
Abstract
Cannabis sativa L. is a crop utilized globally for recreational, therapeutic, and religious purposes. Although considered as an illicit drug in most countries, C. sativa until recently started gaining attention for its medicinal application. This study sought to investigate the hepatoprotective effect of C. sativa on iron-mediated oxidative hepatic injury. Hepatic injury was induced ex vivo by incubating hepatic tissues with Fe2+, which led to depleted levels of reduced glutathione, superoxide dismutase, catalase and ENTPDase activities, triglyceride, and high-density lipoprotein-cholesterol (HDL-C). Induction of hepatic injury also caused significant elevation of malondialdehyde, nitric oxide, cholesterol, and low-density lipoprotein-cholesterol (LDL-C) levels while concomitantly elevating the activities of ATPase, glycogen phosphorylase, glucose-6-phosphatase, fructose-1,6-bisphosphatase, amylase, and lipase. Treatment with the hexane, dichloromethane (DCM), and ethanol extracts of C. sativa leaves significantly (p < 0.05) reversed these levels and activities to almost near normal. However, there was no significant effect on the HDL-C level. The extracts also improved the utilization of glucose in Chang liver cells. High-performance liquid chromatography (HPLC) analysis showed the presence of phenolics in all extracts, with the ethanol extract having the highest constituents. Cannabidiol (CBD) was identified in all the extracts, while Δ-9-tetrahydrocannabinol (Δ-9-THC) was identified in the hexane and DCM extracts only. Molecular docking studies revealed strong interactions between CBD and Δ-9-THC with the β2 adrenergic receptor of the adrenergic system. The results demonstrate the potential of C. sativa to protect against oxidative-mediated hepatic injury by stalling oxidative stress, gluconeogenesis, and hepatic lipid accumulation while modulating cholinergic and purinergic activities. These activities may be associated with the synergistic effect of the compounds identified and possible interactions with the adrenergic system.
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Affiliation(s)
- Ochuko L. Erukainure
- Department of Pharmacology, School of Clinical Medicine, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
| | - Motlalepula G. Matsabisa
- Department of Pharmacology, School of Clinical Medicine, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
| | - Veronica F. Salau
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban, South Africa
| | - Sunday O. Oyedemi
- Department of Pharmacology, School of Clinical Medicine, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
- Department of Pharmacology, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Omolola R. Oyenihi
- Department of Pharmacology, School of Clinical Medicine, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
| | - Collins U. Ibeji
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, Nigeria
| | - Md. Shahidul Islam
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban, South Africa
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10
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Aronimo BS, Okoro UC, Ali R, Ibeji CU, Ezugwu JA, Ugwu DI. Synthesis, molecular docking and antimalarial activity of phenylalanine-glycine dipeptide bearing sulphonamide moiety. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131201] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Okolo EN, Ugwu DI, Ezema BE, Ndefo JC, Eze FU, Ezema CG, Ezugwu JA, Ujam OT. New chalcone derivatives as potential antimicrobial and antioxidant agent. Sci Rep 2021; 11:21781. [PMID: 34741131 PMCID: PMC8571407 DOI: 10.1038/s41598-021-01292-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 10/14/2021] [Indexed: 01/11/2023] Open
Abstract
Seven chalcone derivatives were synthesized by the Claisen-Schmidt condensation. The structures of the compounds were confirmed by spectral data (Ultraviolet/visible, infrared, nuclear magnetic resonance and mass spectroscopy). The compounds were tested for their in silico and in vitro antimicrobial and antioxidant activities. The molecular docking assessments showed that all the compounds exhibited good binding affinity with the target microorganism proteins but, compounds 6e and 6g showed better binding affinity compared with the standards. The antimicrobial test revealed that all the compounds screened were active against Staphylococcus aureus and Bacillus subtilis and had minimum inhibitory concentrations (MIC) between 0.4 and 0.6 mg/mL. Compounds 6a, 6c and 6d had moderate activities on Salmonella typhi. Compounds 6b and 6c had moderate activity on Escherichia coli. Compound 6c had moderate activity on Aspergillus niger while compounds 6a and 6e had poor activity. All the compounds except compound 6e had no inhibition against Pseudomonas aeruginosa. The in-vitro antioxidant activity was assessed using ethylenediaminetetraacetate (EDTA) as the standard. Compounds 6c, 6e and 6g gave excellent inhibitory activity better than the standard. Compound 6a gave good activity at 500 μg/mL and 1000 μg/mL concentrations but, below the standard at 250 μg/mL and no inhibition at 125 μg/mL. Compound 6d had good inhibition at 500 μg/mL and 1000 μg/mL but, no inhibition at 125 μg/mL and 250 μg/mL. Compound 6b was found to be inactive in all the concentrations. Absorption, distribution, metabolism and excretion properties of the compounds were assessed using SwissADME. The results of lead likeness showed that compound 6e is a lead-like molecule.
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Affiliation(s)
- Emelda N Okolo
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - David I Ugwu
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria.
| | - Benjamin E Ezema
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - Joseph C Ndefo
- Department of Science Laboratory Technology, University of Nigeria, Nsukka, Nigeria
| | - Florence U Eze
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - Chidimma G Ezema
- National Center for Energy Research and Development, University of Nigeria, Nsukka, Nigeria
| | - James A Ezugwu
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - Oguejiofo T Ujam
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
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12
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Munzeiwa WA, Oladipo SD, Ibeji CU, Mocktar C, Omondi B. Copper(II)-N-hydroxy-N,N'-diarylformamidine complexes: Synthesis, crystal structures, antibacterial and molecular docking studies. J Inorg Biochem 2021; 225:111600. [PMID: 34507122 DOI: 10.1016/j.jinorgbio.2021.111600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 08/26/2021] [Accepted: 08/28/2021] [Indexed: 10/20/2022]
Abstract
A series of Cu(II) complexes were synthesized by using N-hydroxy-N,N'-diarylformamidine ligands: N-hydroxy-N,N'-(phenyl)formamidine (L1), N-hydroxy-N'-(4-methylphenyl)formamidine (L2), N-hydroxy-N,N'-(2,6-dimethylphenyl)formamidine (L3), N-hydroxy-N,N'-(2,6-diisopropylphenyl)formamidine (L4). Reaction of ligands L1-L4 with hydrated copper acetate furnished mononuclear Cu(II) complexes 1-4 with general formula [Cu-(L)2]. The molecular structures of complexes 3 and 4, as determined by single crystal X-ray diffraction, showed both to have square planar geometry with a near C2 symmetry. The antimicrobial potency of all four complexes was evaluated against three gram-(-) bacteria (S. typhimurium, P. aeruginosa, and E. coli) and two gram-(+) bacteria (Methicillin-resistant S. aureus (MRSA) and S. aureus), with ciprofloxacin as the reference drug. All tested complexes were inactive against gram-(+) bacteria strains except for complex 1, which displayed excellent activity when compared to the reference. Molecular docking studies showed that hydrogen bonding, pi-sigma and van der Waals interactions are prominent complex-protein connections, with complex 2 displaying good binding affinities with the studied biological targets.
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Affiliation(s)
- Wisdom A Munzeiwa
- School of Chemistry and Physics, Westville Campus, University of Kwazulu-Natal, Private Bag X54001, Durban 4000, South Africa; Chemistry Department, Bindura University of Science Education, P Bag 1020, Bindura, Zimbabwe
| | - Segun D Oladipo
- School of Chemistry and Physics, Westville Campus, University of Kwazulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Collins U Ibeji
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - Chunderika Mocktar
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of Kwazulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Bernard Omondi
- School of Chemistry and Physics, Pietermaritzburg Campus, University of Kwazulu-Natal, Private Bag X01, Scottsville 3209, South Africa.
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13
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Salau VF, Erukainure OL, Ayeni G, Ibeji CU, Islam MS. Modulatory effect of ursolic acid on neurodegenerative activities in oxidative brain injury: An ex vivo study. J Food Biochem 2021; 45:e13597. [PMID: 33368405 DOI: 10.1111/jfbc.13597] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/28/2020] [Accepted: 12/05/2020] [Indexed: 12/21/2022]
Abstract
Natural products-based antioxidants have been well reported for their therapeutic benefits in the treatment and management of neurodegenerative diseases. The neuroprotective effect of ursolic acid (UA) against oxidative injury was investigated in isolated rat brain. Induction of oxidative injury in isolated rat brains with 0.1 mM FeSO4 led to depleted levels of glutathione, superoxide dismutase, catalase, and ENTPDase activities, with concomitant exacerbation of malondialdehyde and nitric oxide levels, α-chymotrypsin, ATPase, and acetylcholinesterase activities. These levels and activities were significantly reversed following treatment of the brain tissues with UA. Molecular docking studies revealed strong molecular interactions between UA, catalase, and ATPase. Overall, these results indicate the neuroprotective effect of UA against oxidative injury in isolated rat brains as depicted by their ability to mitigate oxidative stress, purinergic, and cholinergic dysfunctions, with concomitant suppression of proteolytic activity. PRACTICAL APPLICATIONS: Neurodegenerative diseases are among the common diseases associated with aging and has been implicated as oxidative mediated. Natural products have received increasing recognition in their use as treatment remedy for various oxidative-mediated diseases including neurodegeneration. These natural products include plant secondary metabolites commonly known as phytochemicals. Ursolic acid is a phytochemical usually present in leafy vegetables and fruits. The present study describes the possible therapeutic mechanism of ursolic acid in the amelioration of complications linked to neurodegeneration in oxidative-mediated brain injury. These findings thus give insights into the use of natural products of plant origin in treating and managing neurodegenerative diseases, which may have little or no side effects.
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Affiliation(s)
- Veronica F Salau
- Department of Biochemistry, University of KwaZulu-Natal, Durban, South Africa
- Department of Biochemistry, Veritas University, Bwari, Nigeria
| | - Ochuko L Erukainure
- Department of Biochemistry, University of KwaZulu-Natal, Durban, South Africa
- Department of Pharmacology, University of the Free State, Bloemfontein, South Africa
| | - Gideon Ayeni
- Department of Biochemistry, Kogi State University, Anyigba, Nigeria
| | - Collins U Ibeji
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, Nigeria
| | - Md Shahidul Islam
- Department of Biochemistry, University of KwaZulu-Natal, Durban, South Africa
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14
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Nwokelo MO, Izuogu DC, Okpareke OC, Ibeji CU, Oyeka EE, Lane JR, Asegbeloyin JN. Structural, computational and antimicrobial studies of 2–[(E)–[2–(2,4,6-trimethylbenzenesulfonyl)-hydrazinylidene] methyl] benzoic acid and its Cu(II), Zn(II) and Co(II) complexes. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129019] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Sistani P, Dehghan G, Sadeghi L. Structural and kinetic insights into HIV-1 reverse transcriptase inhibition by farnesiferol C. Int J Biol Macromol 2021; 174:309-318. [PMID: 33524481 DOI: 10.1016/j.ijbiomac.2021.01.173] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 01/09/2023]
Abstract
Human immunodeficiency virus type 1 reverse transcriptase (HIV-1 RT) is the key enzyme for the virus gene replication and the most important target for antiviral therapy. Toxicity, drug resistance and side effects have led to search for new antiviral agents. Farnesiferol C (FC) is a well-known biologically active sesquiterpene coumarin derivative from genus Ferula. The current study was designed to examine the impacts of FC on the structure and function of HIV-1 RT, using some theoretical and experimental methods. FC inhibited HIV-1RT activity via mixed inhibition mechanism (IC50 = 30 μM). Spectroscopic data showed some conformational changes in the secondary as well as tertiary structure of HIV-1RT following the interaction with FC. Results showed that FC could quench the intrinsic fluorescence emission of HIV-1RT through static quenching mechanism. Thermodynamic parameters revealed that hydrogen bondings and van der Waals forces are the major forces in the binding reaction and the low equilibrium constants (KD) value obtained from surface plasmon resonance data, confirmed the high affinity of FC for HIV-1RT. Molecular docking studies indicated that FC interacts with enzyme through hydrophobic pocket. Taken together, the outcomes of this research revealed that, sesquiterpene coumarines can be used to design natural remedies as anti-HIV agents.
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Affiliation(s)
- Parisa Sistani
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Gholamreza Dehghan
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
| | - Leila Sadeghi
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
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16
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Zhang C, Liu Y, Sun Y, Dong X. Complicated effects of a zwitterionic polymer containing dimethyl chains on the structures, activities and stabilities of different enzymes. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2020.107813] [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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Grilo LF, Martins JD, Cavallaro CH, Nathanielsz PW, Oliveira PJ, Pereira SP. Development of a 96-well based assay for kinetic determination of catalase enzymatic-activity in biological samples. Toxicol In Vitro 2020; 69:104996. [DOI: 10.1016/j.tiv.2020.104996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/31/2020] [Accepted: 09/03/2020] [Indexed: 02/07/2023]
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18
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Erukainure OL, Atolani O, Muhammad A, Katsayal SB, Ebhuoma OO, Ibeji CU, Mesaik MA. Targeting the initiation and termination codons of SARS-CoV-2 spike protein as possible therapy against COVID-19: the role of novel harpagide 5-O-β-D-glucopyranoside from Clerodendrum volubile P Beauv. (Labiatae). J Biomol Struct Dyn 2020; 40:2475-2488. [PMID: 33140706 PMCID: PMC7651195 DOI: 10.1080/07391102.2020.1840439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The global spread of the coronavirus infections disease − 2019 (COVID-19) and the search for new drugs from natural products particularly from plants are receiving much attention recently. In this study, the therapeutic potential of a new iridoid glycoside isolated from the leaves of Clerodendrum volubile against COVID-19 was investigated. Harpagide 5-O-β-D-glucopyranoside (HG) was isolated, characterised and investigated for its druglikeness, optimized geometry, and pharmacokinetics properties. Its immunomodulatory was determined by chemiluminescence assay using polymorphonuclear neutrophils (PMNs) in addition to T-cell proliferation assay. In silico analysis was used in determining its molecular interaction with severe acute respiratory syndrome coronavirus-2 (SARS-COV-2). HG displayed potent druglikeness properties, with no inhibitory effect on cytochrome P450 (1A2, 2C19, 2C9, 2D6 and 3A4) and a predicted LD50 of 2000 mg/kg. Its 1H-NMR chemical shifts showed a little deviation of 0.01 and 0.11 ppm for H-4 and H-9, respectively. HG significantly suppressed oxidative bursts in PMNs, while concomitantly inhibiting T-cell proliferation. It also displayed a very strong binding affinity with the translation initiation and termination sequence sites of spike (S) protein mRNA of SARS-COV-2, its gene product, and host ACE2 receptor. These results suggest the immunomodulatory properties and anti-SARS-COV-2 potentials of HG which can be explored in the treatment and management of COVID-19. Communicated by Ramaswamy H. Sarma
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Affiliation(s)
- Ochuko L Erukainure
- Department of Pharmacology, University of the Free State, Bloemfontein, South Africa
| | | | - Aliyu Muhammad
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | | | - Osadolor O Ebhuoma
- School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Collins U Ibeji
- Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - M Ahmed Mesaik
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan.,Faculty of Medicine, University of Tabuk, Tabuk, Kingdom of Saudi Arabia
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19
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Ahmad F, Muhmood T, Mahmood A. Deciphering the mechanism of hafnium oxide nanoparticles perturbation in the bio-physiological microenvironment of catalase. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/abbf60] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Abstract
Nanoparticles (NPs) are extensively being used in state-of-the-art nano-based therapies, modern electronics, and consumer products, so can be released into the environment with enhancement interaction with humans. Hence, the exposures to these multifunctional NPs lead to changes in protein structure and functionality, raising serious health issues. This study thoroughly investigated the interaction and adsorption of catalase (CAT) with HfO2-NPs by circular dichroism (CD), Fourier transform infrared (FTIR), absorption, and fluorescence spectroscopic techniques. The results indicate that HfO2 NPs cause fluorescence quenching in CAT by a static quenching mechanism. The negative values of Vant Hoff thermodynamic expressions (ΔH
o
, ΔS
o
, and ΔG
o
) corroborate the spontaneity and exothermic nature of static quenching driven by van der Waals forces and hydrogen bonding. Also, FTIR, UV-CD, and UV–visible spectroscopy techniques confirmed that HfO2 NPs binding could induce microenvironment perturbations leading to secondary and tertiary conformation changes in CAT. Furthermore, synchronous fluorescence spectroscopy confirmed the significant changes in the microenvironment around tryptophan (Trp) residue caused by HfO2 NPs. The time depending denaturing of CAT biochemistry through HfO2-NPs was investigated by assaying catalase activity elucidates the potential toxic action of HfO2-NPs at the macromolecular level. Briefly, this provides an empathetic knowledge of the nanotoxicity and likely health effects of HfO2 NPs exposure.
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20
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Olasehinde TA, Oyeleye SI, Ibeji CU, Oboh G. Beetroot supplemented diet exhibit anti-amnesic effect via modulation of cholinesterases, purinergic enzymes, monoamine oxidase and attenuation of redox imbalance in the brain of scopolamine treated male rats. Nutr Neurosci 2020; 25:1011-1025. [DOI: 10.1080/1028415x.2020.1831260] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Tosin A. Olasehinde
- Nutrition and Toxicology Division, Food Technology Department, Federal Institute of Industrial Research, Lagos, Nigeria
- Department of Biochemistry and Microbiology, University of Fort Hare Alice South Africa
| | - Sunday I. Oyeleye
- Department of Biomedical Technology, Federal University of Technology, Akure
- Functional Food and Nutraceutical Unit, Department of Biochemistry, Federal University of Technology, Akure
| | - Collins U. Ibeji
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, Nigeria
| | - Ganiyu Oboh
- Functional Food and Nutraceutical Unit, Department of Biochemistry, Federal University of Technology, Akure
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21
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Salau VF, Erukainure OL, Ibeji CU, Koorbanally NA, Islam MS. Ferric-Induced Pancreatic Injury Involves Exacerbation of Cholinergic and Proteolytic Activities, and Dysregulation of Metabolic Pathways: Protective Effect of Caffeic Acid. Biol Trace Elem Res 2020; 196:517-527. [PMID: 31691895 DOI: 10.1007/s12011-019-01937-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 10/14/2019] [Indexed: 12/21/2022]
Abstract
The protective effect of caffeic acid on ferric-induced pancreatic injury was investigated using ex vivo and in silico models. Incubation of pancreatic tissues with Fe2+ led to significant depleted levels of glutathione (GSH) and SOD and catalase activities, with concomitant elevated levels of malondialdehyde (MDA) and nitric oxide (NO) and acetylcholinesterase and α-chymotrypsin activities. Treatment with caffeic acid led to significant reversion of these levels and activities. Molecular docking revealed a higher binding affinity of caffeic acid with acetylcholinesterase via hydrogen bonding, Pi-Pi stacking, and Van der Waals interactions. FTIR spectroscopy of pancreatic metabolite revealed little or no effect by caffeic acid on functional groups in ferric-induced injured pancreas. The LC-MS analysis of the metabolites revealed Fe2+ caused a 20% depletion of the normal metabolites, with concomitant generation of glyceraldehyde and 3,4-dihydroxymandelaldehyde. Treatment with caffeic acid led to the restoration of TG(22:4(7Z,10Z,13Z,16Z)/24:0/22:5(7Z,10Z,13Z,16Z,19Z)) and dTDP-D-glucose, while depleting glyceraldehyde as well as activating gluconeogenesis. These results indicate the ability of caffeic acid to protect against ferric toxicity by exacerbating antioxidative activities, with concomitant inhibition of MDA and NO levels while deactivating metabolic pathways linked to oxidative stress.
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Affiliation(s)
- Veronica F Salau
- Department of Biochemistry, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa
- Department of Biochemistry, Veritas University, Bwari, Abuja, Nigeria
| | - Ochuko L Erukainure
- Department of Biochemistry, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa
- Department of Pharmacology, University of the Free State, Bloemfontein, 9300, South Africa
| | - Collins U Ibeji
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, 410001, Nigeria
| | - Neil A Koorbanally
- School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa
| | - Md Shahidul Islam
- Department of Biochemistry, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa.
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22
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Salau VF, Erukainure OL, Bharuth V, Ibeji CU, Olasehinde TA, Islam MS. Kolaviron stimulates glucose uptake with concomitant modulation of metabolic activities implicated in neurodegeneration in isolated rat brain, without perturbation of tissue ultrastructural morphology. Neurosci Res 2020; 169:57-68. [PMID: 32645363 DOI: 10.1016/j.neures.2020.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/22/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023]
Abstract
Reduced glucose uptake usually occurs in type 2 diabetes due to down-regulation of brain glucose transporters. The potential of kolaviron, a biflavonoid from Garcinia kola to stimulate glucose uptake and suppress glucose-induced oxidative toxicity were investigated in rat brain. Its molecular interactions with the target proteins were investigated in silico. Kolaviron was incubated with excised rat brain in the presence of glucose for 2 h, with metformin serving as a positive control. Kolaviron caused a significant (p < 0.05) increase in glucose uptake, glutathione level, superoxide dismutase, catalase, ATPase, ENTPDase and 5'-nucleotidase activities, while concomitantly depleting malondialdehyde level, acetylcholinesterase and butyrylcholinesterase activities compared to brains incubated with glucose only. Electron microscopy (SEM and TEM) analysis revealed kolaviron had little or no effect on the ultrastructural morphology of brain tissues as evidenced by the intact dendritic and neuronal network, blood vessels, mitochondria, synaptic vesicles, and pre-synaptic membrane. SEM-EDX analysis revealed a restorative effect of glucose-induced alteration in brain elemental concentrations, with total depletion of aluminum and zinc. MTT analysis revealed kolaviron had no cytotoxic effect on HT-22 cells. Molecular docking revealed a potent interaction between kolaviron and catalase at the SER114 and MET350 residues, with a binding energy of 12 kcal/mol. Taken together, these results portray the potential of kolaviron to stimulate glucose uptake while concomitantly coffering a neuroprotective effect.
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Affiliation(s)
- Veronica F Salau
- Department of Biochemistry, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa; Department of Biochemistry, Veritas University, Bwari, Abuja, Nigeria
| | - Ochuko L Erukainure
- Department of Biochemistry, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa; Department of Pharmacology, University of the Free State, Bloemfontein, 9300, South Africa
| | - Vishal Bharuth
- Microscopy and Microanalysis Unit, University of KwaZulu-Natal, Westville Campus, Durban 4000, South Africa
| | - Collins U Ibeji
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, 410001, Nigeria
| | - Tosin A Olasehinde
- Department of Biochemistry and Microbiology, University of Fort Hare, Alice, Eastern Cape 5700, South Africa
| | - Md Shahidul Islam
- Department of Biochemistry, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa.
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23
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Chioma F, Ibeji CU, Okpareke O. Novel 3d divalent metallic complexes of 3-[(2-hydroxy-5-methyl-phenylimino)-methyl]-napthalen-2-ol: Synthesis, spectral characterization, antimicrobial and computational studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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24
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25
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Salau VF, Erukainure OL, Ibeji CU, Koorbanally NA, Islam MS. Umbelliferone stimulates glucose uptake; modulates gluconeogenic and nucleotide-hydrolyzing enzymes activities, and dysregulated lipid metabolic pathways in isolated psoas muscle. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103847] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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26
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Olanrewaju AA, Ibeji CU, Oyeneyin OE. Biological evaluation and molecular docking of some newly synthesized 3d-series metal(II) mixed-ligand complexes of fluoro-naphthyl diketone and dithiocarbamate. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2482-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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27
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Experimental investigation and molecular dynamics simulation of the binding of ellagic acid to bovine liver catalase: Activation study and interaction mechanism. Int J Biol Macromol 2020; 143:850-861. [DOI: 10.1016/j.ijbiomac.2019.09.146] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 09/15/2019] [Accepted: 09/19/2019] [Indexed: 01/14/2023]
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28
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Wang J, Jia R, Zheng X, Liu R, Zong W. Superoxide dismutase response and the underlying molecular mechanism induced by iodoacetic acid. CHEMOSPHERE 2019; 234:513-519. [PMID: 31229712 DOI: 10.1016/j.chemosphere.2019.06.108] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 05/24/2019] [Accepted: 06/14/2019] [Indexed: 06/09/2023]
Abstract
Given the ubiquity of iodinated disinfection by-products (I-DBPs) in drinking water and their prominent toxicity, it is of vital significance to evaluate I-DBPs toxicity and explore the underlying mechanism. The toxicity of iodoacetic acid (IAA), a typical type of I-DBPs, might be linked with oxidative stress. However, it remains unknown for the response of antioxidant enzyme superoxide dismutase (SOD) in the mouse primary hepatocytes when exposed to IAA and the underlying mechanism. This study explored SOD response to IAA and the underlying mechanisms at the molecular and cellular levels. Under IAA exposure, the observed increase of SOD activity in the hepatocytes was caused by the increase of SOD production via ROS stimulation and the increase of SOD molecular activity. Molecular experiments showed that IAA binds to SOD molecule mainly via electrostatic forces with one binding site around the active site and six binding sites in the surface of protein. The binding interaction leads to the conformational changes of SOD and the disruption of protein aggregates. This work could offer basic data for the comprehensive understanding of the adverse effects of IAA and references for assessing the harmful effects of DBPs.
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Affiliation(s)
- Jing Wang
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China.
| | - Rui Jia
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China
| | - Xiaolin Zheng
- School of Environmental and Material Engineering, Yantai University, 30# Qingquan Road, Yantai, 264005, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Wansong Zong
- College of Population, Resources and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, 250014, PR China
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29
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Zhao L, Guo D, Lin J, Liu R. Responses of catalase and superoxide dismutase to low-dose quantum dots on molecular and cellular levels. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 181:388-394. [PMID: 31212187 DOI: 10.1016/j.ecoenv.2019.06.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/06/2019] [Accepted: 06/09/2019] [Indexed: 06/09/2023]
Abstract
With the wider application of cadmium-containing quantum dots (Cd-QDs) in biomedical fields, it is easier for people to be exposed. Studies have suggested that Cd-QDs could release cadmium ion and induce oxidative effects due to the disruption of redox equilibrium. Antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD), play an important role in organisms to resist the negative impact of exogenous substances. Molecular mechanisms of antioxidant enzymes with Cd-QDs remain unclear, however. In this study, structural and functional changes of CAT and SOD have been investigated under low dose Cd-QDs exposure. Cell viability, malondialdehyde (MDA) level, CAT and SOD activities were influenced by Cd-QDs in hepatocytes of mice. To further investigate the responses of CAT and SOD to Cd-QDs, multiple spectroscopic, calorimetric and activity measurements were carried out. Similar interaction patterns were observed that result in interaction force, structural and functional changes: Cd-QDs combine with CAT and SOD through hydrophobic forces; Intrinsic fluorescence of proteins was statically quenched by Cd-QDs and new complexes were formed; Also, the skeleton and secondary structure (with α-helix decrease) of CAT and SOD was influenced. Taken together, we suggest that Cd-QDs chosen in this study induce oxidative stress effects to hepatocytes but have not caused serious oxidative stress damage at concentrations below 10 μg/mL. MPA-CdSe/ZnS QDs caused the lowest level of oxidative stress which is associated with the induction of antioxidant proteins. This paper presents responses of CAT and SOD to low-dose Cd-QDs, and provides a reference for evaluating health damages caused by Cd-QDs.
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Affiliation(s)
- Lining Zhao
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Dandan Guo
- Digital Management Center of Urban Underground Pipelines, Qixia Branch of Nanjing Planning Bureau, Jiangsu Province, 118# Wenyuan Road, Nanjing, 210046, PR China
| | - Jing Lin
- North China Sea Data & Information Service of SOA, 27# Yunling Road, Laoshan, Qingdao, 266061, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China.
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Collazos N, García G, Malagón A, Caicedo O, Vargas EF. Binding interactions of a series of sulfonated water-soluble resorcinarenes with bovine liver catalase. Int J Biol Macromol 2019; 139:75-84. [DOI: 10.1016/j.ijbiomac.2019.07.197] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/24/2019] [Accepted: 07/29/2019] [Indexed: 11/29/2022]
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31
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Simin khataee, Dehghan G, Rashtbari S, Yekta R, Sheibani N. Synergistic inhibition of catalase activity by food colorants sunset yellow and curcumin: An experimental and MLSD simulation approach. Chem Biol Interact 2019; 311:108746. [DOI: 10.1016/j.cbi.2019.108746] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/06/2019] [Accepted: 07/10/2019] [Indexed: 11/26/2022]
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Ferulic Acid Modulates Dysfunctional Metabolic Pathways and Purinergic Activities, While Stalling Redox Imbalance and Cholinergic Activities in Oxidative Brain Injury. Neurotox Res 2019; 37:944-955. [DOI: 10.1007/s12640-019-00099-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/03/2019] [Accepted: 08/06/2019] [Indexed: 02/06/2023]
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Zheng T, Yuan D, Liu C. Molecular toxicity of nanoplastics involving in oxidative stress and desoxyribonucleic acid damage. J Mol Recognit 2019; 32:e2804. [PMID: 31373076 DOI: 10.1002/jmr.2804] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 06/12/2019] [Accepted: 06/17/2019] [Indexed: 12/13/2022]
Abstract
Microplastic pollution attracted extensive attention because of its global presence and adverse effects on ecosystem. However, it is insufficient to clear the effects of nanoplastics on organisms at the molecular level. Herein, a nanopolystyrene (50 nm) was used to examine molecular responses of superoxide dismutase (SOD) and desoxyribonucleic acid (DNA) using spectroscopy (UV-vis, circular dichroism spectra, and fluorescence measurements) and single cell gel electrophoresis methods. Results showed that nanopolystyrene induced oxidative stress, involving in the increase of SOD activity and malondialdehide (MDA) content, and DNA damage because of the significant increase of olive tail moment, head optical density, and tail DNA percentage in the groups at exposure concentrations above 5 × 10-6 mol/L. The second structural and microenvironment of aromatic amino acids of SOD were changed with nanopolystyrene exposure. The fluorescence of SOD was quenched by nanopolystyrene at exposure concentration above 1 × 10-5 mol/L, and the quenching mode could be ascribed to the static type. The results and the combined methods are favorable to explore the molecular toxicity of other nanoplastics and the interaction mechanism.
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Affiliation(s)
- Tongtong Zheng
- School of Environmental Science and Engineering, Shandong Key Laboratory of Water Pollution Control and Resource Reuse,, China-America CRC for Environment and Health of Shandong Province, Shandong University, Qingdao, China
| | - Dong Yuan
- Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou, China
| | - Chunguang Liu
- School of Environmental Science and Engineering, Shandong Key Laboratory of Water Pollution Control and Resource Reuse,, China-America CRC for Environment and Health of Shandong Province, Shandong University, Qingdao, China.,Guangdong Provincial Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, China
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Xu M, Wan J, Niu Q, Liu R. PFOA and PFOS interact with superoxide dismutase and induce cytotoxicity in mouse primary hepatocytes: A combined cellular and molecular methods. ENVIRONMENTAL RESEARCH 2019; 175:63-70. [PMID: 31103794 DOI: 10.1016/j.envres.2019.05.008] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/10/2019] [Accepted: 05/08/2019] [Indexed: 05/08/2023]
Abstract
This study investigated the adverse effects of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) on mouse primary hepatocytes by conducting cell viability, apoptosis, intracellular oxidative stress level, superoxide dismutase (SOD), catalase (CAT) activity and glutathione level assays. It was shown that PFOA and PFOS altered antioxidant enzymes activities and triggered oxidative stress, and thus exhibited cytotoxicity to the hepatocytes. Molecular mechanisms of SOD activities were measured and structural changes were explored by isothermal titration calorimetry and multiple spectroscopy. PFOA and PFOS bind to SOD via electrostatic forces with 7.634 ± 0.06 and 9.7 ± 0.4 sites, respectively, leading to structural and conformational changes. The overall results demonstrated that PFOS and PFOA are able to interact with SOD directly, resulting in producing oxidative stress and induce apoptosis.
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Affiliation(s)
- Mengchen Xu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Jingqiang Wan
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Qigui Niu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, PR China.
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Chukwuma CI, Matsabisa MG, Erukainure OL, Ibeji CU, Islam MS. D-mannitol modulates glucose uptake ex vivo; suppresses intestinal glucose absorption in normal and type 2 diabetic rats. FOOD BIOSCI 2019. [DOI: 10.1016/j.fbio.2019.03.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Lee JW, Lee JW, Kim K, Shin YJ, Kim J, Kim H, Kim H, Min SA, Kim P, Choi K, Park K. n-Butyl acrylate-induced antioxidant system alteration through two generations in Oryzias latipes. FISH PHYSIOLOGY AND BIOCHEMISTRY 2019; 45:873-883. [PMID: 30387033 DOI: 10.1007/s10695-018-0584-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 10/25/2018] [Indexed: 06/08/2023]
Abstract
n-Butyl acrylate (nBA) is one of acrylate esters which has been applied to diverse industrial fields. For unveiling of xeno-estrogenic effects and oxidative stress induction by nBA under two-generational exposure regimen (17 weeks), the biomarkers relevant to an estrogenic effect and oxidative stress were analyzed. Acute toxicity value of nBA in Oryzias latipes was 7.2 mg/L (96 h-LC50). Over exposure time, the significant transcriptional change of cytochrome P450 19A (CYP19A) and vitellogenin 1/2 (VTG1/2) was not observed (one-way ANOVA, P < 0.05), meaning no estrogenic effect of nBA. Significant reduction of glutathione (GSH) content was observed in F0 male and female fish, while in F1 male, the content was increased (P < 0.05). Catalase (CAT) activity of male fish showed the significant decrease in both F0 and F1 fish, showing multi-generational suppressing effect of nBA on CAT activity. But in case of reactive oxygen species (ROS), expression level and glutathione S-transferase (GST) activity were not modulated in response to nBA. These findings suggest that nBA could affect an antioxidant system alteration through GSH depletion and inhibition of CAT activity which could be transferred to the next generation, whereas xeno-estrogenic effect would be questionable.
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Affiliation(s)
- Jin Wuk Lee
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea
| | - Jae-Woo Lee
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea
| | - Kyungtae Kim
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea
| | - Yu-Jin Shin
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea
| | - Jieun Kim
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea
| | - Hokyun Kim
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea
| | - Heejung Kim
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea
| | - Su-A Min
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea
| | - Pilje Kim
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea
| | - Kyunghee Choi
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea
| | - Kyunghwa Park
- Risk Assessment Division, Environmental Health Research Department, National Institute of Environmental Research (NIER), Incheon, 404-708, Republic of Korea.
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Erukainure OL, Oyebode OA, Ibeji CU, Koorbanally NA, Islam MS. Vernonia Amygdalina Del. stimulated glucose uptake in brain tissues enhances antioxidative activities; and modulates functional chemistry and dysregulated metabolic pathways. Metab Brain Dis 2019; 34:721-732. [PMID: 30607820 DOI: 10.1007/s11011-018-0363-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 12/04/2018] [Indexed: 12/21/2022]
Abstract
Brain glucose uptake is usually reduced in type 2 diabetes owing to downregulation of brain glucose transporters. The ability of Vernonia amygdalina to stimulate glucose uptake as well as ameliorate glucose-induced oxidative stress and proinflammation were investigated in rat brain. Hot infusion of V. amygdalina leaves was incubated with rat brain tissues for 2 h in the presence of glucose. Another incubation with glucose only, served as negative control while metformin served as positive control. Incubation of brain tissues with V. amygdalina led to significant (p < 0.05) increase in glucose uptake, reduced glutathione, nitric oxide and non-thiol proteins levels, superoxide dismutase, catalase and ATPase activities, while concomitantly decrease in myeloperoxidase activity and malondialdehyde level compared to the negative control. Incubation with glucose only, led to the development of nitrate, amide II and amide I functional groups which were removed on incubation with the infusion. LC-MS analysis revealed depletion of oxidative stress-induced 2-keto-glutaramic acid and cysteinyl-tyrosine metabolites in brain tissues, with concomitant generation of S-formylglutathione and adenosine tetraphosphate by the infusion. Pathway analysis of the metabolites revealed an activation of pyruvate metabolism pathway in the negative control, with the infusion reducing the intensity fold. LC-MS analysis of the infusion revealed the presence of l-serine, l-cysteine, l-proline, nicotinic acid, cumidine, salicylic acid, isoquinoline, 3-methyl-, and γ-octalactone. Except for l-serine, l-cysteine and l-proline, the other compounds were predicted to be permeable across the blood brain barrier. These results indicate the brain glucose uptake stimulatory and neuroprotective effect of V. amygdalina.
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Affiliation(s)
- Ochuko L Erukainure
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa
- Nutrition and Toxicology Division, Federal Institute of Industrial Research, Oshodi, Lagos, Nigeria
| | - Olajumoke A Oyebode
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa
| | - Collins U Ibeji
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, 410001, Nigeria
| | - Neil A Koorbanally
- School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa
| | - Md Shahidul Islam
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4000, South Africa.
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Fang W, Chi Z, Li W, Zhang X, Zhang Q. Comparative study on the toxic mechanisms of medical nanosilver and silver ions on the antioxidant system of erythrocytes: from the aspects of antioxidant enzyme activities and molecular interaction mechanisms. J Nanobiotechnology 2019; 17:66. [PMID: 31101056 PMCID: PMC6524268 DOI: 10.1186/s12951-019-0502-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 05/09/2019] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The wide application of silver nanoparticles (AgNPs) in medicals and daily utensils increases the risk of human exposure. The study on cell and protein changes induced by medical AgNPs (20 nm) and Ag+ gave insights into the toxicity mechanisms of them. RESULTS AgNPs and Ag+ affected the enzymatic and non-enzymatic antioxidant systems of red blood cells (RBCs). When RBCs were exposed to AgNPs or Ag+ (0-0.24 μg/mL), catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPX) were more sensitive to Ag+, whereas the RBCs had slightly higher glutathione (GSH) contents treated by AgNPs. Both AgNPs and Ag+ increased the malondialdehyde (MDA) content of RBCs, but the difference was not significant. The difference in the change of the enzyme activity indicated that AgNPs and Ag+ have different influencing mechanisms on CAT and GPX. And SOD has stronger resistance to both of AgNPs and Ag+. When AgNPs or Ag+ (0-10 μg/mL) was directly applied on enzymatic proteins, although AgNPs or Ag+ at a high concentration was toxic, at the concentration below 0.4 μg/mL could promote the activities of CAT/SOD/GPX. The spectroscopic results (fluorescence, synchronous fluorescence, resonance light scattering and ultraviolet absorption), including the changes in amino acid microenvironment, peptide chain conformation, and aggregation state, indicated that the interaction mechanism and conformational changes were also the important factors for the changes in the activities of SOD/CAT when SOD/CAT were directly exposed to AgNPs or Ag+. CONCLUSIONS Low concentration (< 0.4 μg/mL) of AgNPs is relatively safe and the direct effects of AgNPs and Ag+ on enzymes are important reasons for the change in antioxidant capacity of RBCs.
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Affiliation(s)
- Wenxu Fang
- Department of Environmental Engineering, Harbin Institute of Technology, Weihai, 2# Wenhua West Road, Weihai, 264209, People's Republic of China
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China
| | - Zhenxing Chi
- Department of Environmental Engineering, Harbin Institute of Technology, Weihai, 2# Wenhua West Road, Weihai, 264209, People's Republic of China.
- Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou, 510632, People's Republic of China.
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China.
| | - Weiguo Li
- Department of Environmental Engineering, Harbin Institute of Technology, Weihai, 2# Wenhua West Road, Weihai, 264209, People's Republic of China
| | - Xunuo Zhang
- Department of Environmental Engineering, Harbin Institute of Technology, Weihai, 2# Wenhua West Road, Weihai, 264209, People's Republic of China
| | - Qiang Zhang
- Department of Environmental Engineering, Harbin Institute of Technology, Weihai, 2# Wenhua West Road, Weihai, 264209, People's Republic of China
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Yekta R, Dehghan G, Rashtbari S, Sadeghi L, Baradaran B, Sheibani N, Moosavi-Movahedi AA. The impact of water molecules on binding affinity of the anti-diabetic thiazolidinediones for catalase: Kinetic and mechanistic approaches. Arch Biochem Biophys 2019; 664:110-116. [PMID: 30738039 DOI: 10.1016/j.abb.2019.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/03/2019] [Accepted: 02/05/2019] [Indexed: 01/29/2023]
Abstract
Water molecules play a vital role in efficient drug binding to its target. Thiazolidinediones (TZDs), a class of anti-diabetic drugs, are widely used for treatment of type 2 diabetes mellitus. In the present study, the possible contribution of water molecules to the binding of TZDs to catalase, a potential target in the liver, was investigated by different experimental and theoretical methods. These studies indicated that TZDs could significantly improve the catalase catalytic function with a significant contribution from water molecules. As a probe for the differential number of released water molecules during the catalase transition from E to E* states, the activity of TZDs-catalase complexes was demonstrated to be mainly dependent on water activity. However, free catalase decomposed the substrate more independently. In addition, the spectrofluorimetry studies showed that the binding of TZDs to catalase needed the release of water molecules from the enzyme's binding pocket. The thermodynamic studies indicated that the binding enthalpy and entropy of TZDs for catalase were decreased with lower water activity. The favorable process contributes to release of water molecules from the binding pocket through the formation of hydrophobic interactions between catalase and TZDs in an enthalpic manner. Molecular docking simulations confirmed that the depletion of water molecules from the binding cavity is essential for effective interactions between TZDs and catalase.
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Affiliation(s)
- Reza Yekta
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Gholamreza Dehghan
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
| | - Samaneh Rashtbari
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Leila Sadeghi
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nader Sheibani
- Departments of Ophthalmology and Visual Sciences, Cell and Regenerative Biology, and Biomedical Engineering, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Ali A Moosavi-Movahedi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran; Center of Excellence in Biothermodynamics, University of Tehran, Tehran, Iran
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Sanni O, Erukainure OL, Chukwuma CI, Koorbanally NA, Ibeji CU, Islam MS. Azadirachta indica inhibits key enzyme linked to type 2 diabetes in vitro, abates oxidative hepatic injury and enhances muscle glucose uptake ex vivo. Biomed Pharmacother 2019; 109:734-743. [DOI: 10.1016/j.biopha.2018.10.171] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/24/2018] [Accepted: 10/30/2018] [Indexed: 02/05/2023] Open
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Enzymatic analysis, structural study and molecular docking of laccase and catalase from B. subtilis SK1 after textile dye exposure. ECOL INFORM 2018. [DOI: 10.1016/j.ecoinf.2018.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Boerhaavia diffusa inhibits key enzymes linked to type 2 diabetes in vitro and in silico; and modulates abdominal glucose absorption and muscle glucose uptake ex vivo. Biomed Pharmacother 2018; 106:1116-1125. [DOI: 10.1016/j.biopha.2018.07.053] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 07/09/2018] [Indexed: 12/16/2022] Open
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43
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The inhibitory effect of farnesiferol C against catalase; Kinetics, interaction mechanism and molecular docking simulation. Int J Biol Macromol 2018; 113:1258-1265. [DOI: 10.1016/j.ijbiomac.2018.03.053] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 03/11/2018] [Accepted: 03/12/2018] [Indexed: 01/09/2023]
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44
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Sepasi Tehrani H, Moosavi-Movahedi AA. Catalase and its mysteries. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2018. [PMID: 29530789 DOI: 10.1016/j.pbiomolbio.2018.03.001] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Catalase is one of the firsts in every realm of biological sciences. At the same time it also has a number of unusual features. It has one of the highest turnover numbers of all enzymes. It is essential for neutralizing the noxious hydrogen peroxide both in the nature and the various industries such as dairy, textile and pharmaceutics. It also has the merit of being one of the first protein crystals to be isolated. Ironically its three-dimensional structure was discerned some forty years later. However through the times this senile enzyme has continued to intrigue the scientists by surprising facts and phenomena, such as peculiar interweaving of subunits and remarkable thermal stability. It is also known for suicide inactivation by its own substrate. Catalase is known to be implicated in various medical scenarios and its levels have served as a marker in that capacity. It has even been incorporated into several pharmaceuticals. This review strives to clarify these perspectives. It also draws attention to the biophysical contributions offered by thermodynamics and kinetics in these discoveries. The ultimate aim of this review, however, is to state that the venerable catalase will continue to bewilder us with its mysteries well into the twenty-first century.
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Affiliation(s)
- Hessam Sepasi Tehrani
- Department of Biology, Islamic Azad University, Science and Research Branch, Tehran, Iran.
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Rashtbari S, Dehghan G, Yekta R, Jouyban A, Iranshahi M. Effects of Resveratrol on the Structure and Catalytic Function of Bovine Liver catalase (BLC): Spectroscopic and Theoretical Studies. Adv Pharm Bull 2017; 7:349-357. [PMID: 29071216 PMCID: PMC5651055 DOI: 10.15171/apb.2017.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 06/25/2017] [Accepted: 07/05/2017] [Indexed: 12/14/2022] Open
Abstract
Purpose: The study on the interaction between various compounds and macromolecules such as enzymes has been very important for monitoring the alteration of structural and functional properties of them. Resveratrol (3, 5, 4-trihydroxy-stilbene; RES) is a biologically active phytoallexin found in grapes and other food products. This article shows an interaction of native bovine liver catalase (BLC) with natural antioxidant product, trans resveratrol (tRES) using multispectroscopic methods. Methods: The interaction between BLC and tRES is performed using UV-vis absorption, fluorescence and circular dichroism (CD) spectroscopy and molecular docking study. Results: In vitro kinetic studies indicated that tRES can decrease BLC activity through uncompetitive inhibition. The results of spectroscopic methods represented that the binding of tRES with BLC can change the micro-region around aromatic amino acids (tryptophan (Trp) and tyrosine (Tyr)) and quench intrinsic fluorescence of BLC by a static mechanism. According to fluorescence quenching data analysis, it was revealed that tRES has one binding site on BLC. The thermodynamic parameters were obtained, which demonstrated that tRES can bind to BLC by van der Waals forces and hydrogen bonds. Molecular docking results indicated that tRES binds to BLC away from heme group and near to the Tyr 324 and Phe 265. These results are in agreement with the experimental results. Conclusion: The inhibitory effect of tRES on BLC demonstrated that excessive consumption of the antioxidants could be resulted in hazardous effects.
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Affiliation(s)
- Samaneh Rashtbari
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Gholamreza Dehghan
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Reza Yekta
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehrdad Iranshahi
- Department of Pharmacognosy, Faculty of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Wu Q, Wan J, He Z, Liu R. Spectroscopic investigations on the conformational changes of lysozyme effected by different sizes of N-acetyl-l-cysteine-capped CdTe quantum dots. J Biochem Mol Toxicol 2017; 31. [PMID: 28902442 DOI: 10.1002/jbt.21982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 08/16/2017] [Accepted: 08/19/2017] [Indexed: 11/11/2022]
Abstract
The effect of N-acetyl-l-cysteine-capped CdTe quantum dots (NAC-CdTe QDs) with different sizes on lysozyme was investigated by isothermal titration calorimetry (ITC), enzyme activity assays, and multi-spectroscopic methods. ITC results proved that NAC-CdTe QDs can spontaneously bind with lysozyme and hydrophobic force plays a major role in stabilizing QDs-lysozyme complex. Multi-spectroscopic measurements revealed that NAC-CdTe QDs caused strong quenching of the lysozyme's fluorescence in a size-dependent quenching manner. Moreover, the changes of secondary structure and microenvironment in lysozyme caused by the NAC-CdTe QDs were higher with a bigger size. The results of enzyme activity assays showed that the interaction between lysozyme and NAC-CdTe QDs inhibited the activity of lysozyme and the inhibiting effect was in a size-dependent manner. Based on these results, we conclude that NAC-CdTe QDs with larger particle size had a larger impact on the structure and function of lysozyme.
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Affiliation(s)
- Qianqian Wu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, Jinan, 250100, People's Republic of China
| | - Jingqiang Wan
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, Jinan, 250100, People's Republic of China
| | - Zhuo He
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, Jinan, 250100, People's Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, Jinan, 250100, People's Republic of China
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47
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Guo D, Liu R. Spectroscopic investigation of the effects of aqueous-phase prepared CdTe quantum dots on protein hemoglobin at the molecular level. J Biochem Mol Toxicol 2017; 31. [PMID: 28661553 DOI: 10.1002/jbt.21953] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 06/01/2017] [Accepted: 06/16/2017] [Indexed: 11/06/2022]
Abstract
3-Mercaptopropionic Acid-modified CdTe quantum dots (QDs) were synthesized and characterized by infrared, fluorescence, and ultraviolet-visible absorption spectra and Nano-ZetaSizer measurements. Then the interaction between QDs and hemoglobin was studied to investigate the effects of QDs on the structure and function of hemoglobin by using a variety of spectroscopy methods and isothermal titration calorimetry. The results showed van der Waals forces and hydrogen bonding predominantly played major roles in the binding. The intrinsic fluorescence of hemoglobin was quenched with changes to the microenvironment of tyrosine and tryptophan residues and complex conformational changes of hemoglobin were induced with the loosening and unfolding skeleton. However, the heme in hemoglobin was still stable, indicating that the main physiological function of hemoglobin might not be significantly inhibited. This study will provide a new strategy to study the biological toxicity of QDs at the molecular level.
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Affiliation(s)
- Dandan Guo
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, Jinan, 250100, People's Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, Jinan, 250100, People's Republic of China
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48
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Yekta R, Dehghan G, Rashtbari S, Sheibani N, Moosavi-Movahedi AA. Activation of catalase by pioglitazone: Multiple spectroscopic methods combined with molecular docking studies. J Mol Recognit 2017. [DOI: 10.1002/jmr.2648] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Reza Yekta
- Department of Biology, Faculty of Natural Sciences; University of Tabriz; Tabriz Iran
| | - Gholamreza Dehghan
- Department of Biology, Faculty of Natural Sciences; University of Tabriz; Tabriz Iran
| | - Samaneh Rashtbari
- Department of Biology, Faculty of Natural Sciences; University of Tabriz; Tabriz Iran
| | - Nader Sheibani
- Departments of Ophthalmology and Visual Sciences, Biomedical Engineering, and Cell and Regenerative Biology; University of Wisconsin School of Medicine and Public Health; Madison WI USA
| | - Ali Akbar Moosavi-Movahedi
- Institute of Biochemistry and Biophysics; University of Tehran; Tehran Iran
- Center of Excellence in Biothermodynamics; University of Tehran; Tehran Iran
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Zaman M, Nusrat S, Zakariya SM, Khan MV, Ajmal MR, Khan RH. Elucidating the interaction of clofazimine with bovine liver catalase; a comprehensive spectroscopic and molecular docking approach. J Mol Recognit 2017; 30. [DOI: 10.1002/jmr.2619] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/31/2016] [Accepted: 02/02/2017] [Indexed: 01/25/2023]
Affiliation(s)
- Masihuz Zaman
- Interdisciplinary Biotechnology Unit; Aligarh Muslim University; Aligarh 202002 India
| | - Saima Nusrat
- Interdisciplinary Biotechnology Unit; Aligarh Muslim University; Aligarh 202002 India
| | | | - Mohsin Vahid Khan
- Interdisciplinary Biotechnology Unit; Aligarh Muslim University; Aligarh 202002 India
| | - Mohammad Rehan Ajmal
- Interdisciplinary Biotechnology Unit; Aligarh Muslim University; Aligarh 202002 India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit; Aligarh Muslim University; Aligarh 202002 India
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Zhang R, Zhao L, Liu R. Deciphering the toxicity of bisphenol a to Candida rugosa lipase through spectrophotometric methods. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 163:40-6. [DOI: 10.1016/j.jphotobiol.2016.08.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Accepted: 08/09/2016] [Indexed: 11/16/2022]
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