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Deng L, Xiong J, Liu W, Wu L, Hu H, Wu J, Liu Y, Yu L, Zhou Y, Gao W, He H, Yin W. A Novel Fluorescence Sensor for Iodide Detection Based on the 1,3-Diaryl Pyrazole Unit with AIE and Mechanochromic Fluorescence Behavior. Molecules 2023; 28:7111. [PMID: 37894590 PMCID: PMC10609397 DOI: 10.3390/molecules28207111] [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: 09/05/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/29/2023] Open
Abstract
A D-A type of luminophore, TPA-CDP, was designed and synthesized by using triphenylamine (TPA) as D (electron donor), 1,3-diaryl pyrazole with cyano groups (CDP) as A (electron acceptor) and employing a cyanovinyl segment as a recognition group. Firstly, TPA-CDP demonstrates effective fluorescence quenching as a sensor for I- by the nucleophilic addition reaction of the cyanovinyl segment with a high level of sensitivity, selectivity and a low determination limit of 4.43 μM. Interestingly, TPA-CDP exhibited an AIE phenomenon with the fw value reaching 50%. In addition, TPA-CDP displayed distinct mechanochromic fluorescence behavior with 70 nm red shift, which was observed over four repeated cycles. Furthermore, the mechanochromic fluorescence behavior of TPA-CDP, as observed in powder XRD experiments, was found to be associated with the morphological transition from a crystalline state to an amorphous state. These results confirm the significant potential of CDP as a powerful electron-deficient component in the creation of D-A-type mechanochromic fluorescence materials and biosensors for detecting I-.
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Affiliation(s)
- Lili Deng
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330013, China; (L.D.); (J.X.); (W.L.); (L.W.); (H.H.); (J.W.); (Y.L.); (W.G.)
- Jiangxi Provincial Engineering Research Center for Waterborne Coatings, School of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China;
| | - Jian Xiong
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330013, China; (L.D.); (J.X.); (W.L.); (L.W.); (H.H.); (J.W.); (Y.L.); (W.G.)
| | - Wenqin Liu
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330013, China; (L.D.); (J.X.); (W.L.); (L.W.); (H.H.); (J.W.); (Y.L.); (W.G.)
| | - Lixue Wu
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330013, China; (L.D.); (J.X.); (W.L.); (L.W.); (H.H.); (J.W.); (Y.L.); (W.G.)
| | - Huiyi Hu
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330013, China; (L.D.); (J.X.); (W.L.); (L.W.); (H.H.); (J.W.); (Y.L.); (W.G.)
| | - Jiaqing Wu
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330013, China; (L.D.); (J.X.); (W.L.); (L.W.); (H.H.); (J.W.); (Y.L.); (W.G.)
| | - Yue Liu
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330013, China; (L.D.); (J.X.); (W.L.); (L.W.); (H.H.); (J.W.); (Y.L.); (W.G.)
| | - Lide Yu
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330013, China; (L.D.); (J.X.); (W.L.); (L.W.); (H.H.); (J.W.); (Y.L.); (W.G.)
| | - Yuling Zhou
- Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou 570314, China
| | - Wenjun Gao
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330013, China; (L.D.); (J.X.); (W.L.); (L.W.); (H.H.); (J.W.); (Y.L.); (W.G.)
| | - Haifeng He
- Jiangxi Provincial Engineering Research Center for Waterborne Coatings, School of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China;
| | - Weiyan Yin
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China;
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Eberle RJ, Olivier DS, Amaral MS, Pacca CC, Nogueira ML, Arni RK, Willbold D, Coronado MA. Riboflavin, a Potent Neuroprotective Vitamin: Focus on Flavivirus and Alphavirus Proteases. Microorganisms 2022; 10:1331. [PMID: 35889050 PMCID: PMC9315535 DOI: 10.3390/microorganisms10071331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/24/2022] [Accepted: 06/29/2022] [Indexed: 12/01/2022] Open
Abstract
Several neurotropic viruses are members of the flavivirus and alphavirus families. Infections caused by these viruses may cause long-term neurological sequelae in humans. The continuous emergence of infections caused by viruses around the world, such as the chikungunya virus (CHIKV) (Alphavirus genus), the zika virus (ZIKV) and the yellow fever virus (YFV) (both of the Flavivirus genus), warrants the development of new strategies to combat them. Our study demonstrates the inhibitory potential of the water-soluble vitamin riboflavin against NS2B/NS3pro of ZIKV and YFV and nsP2pro of CHIKV. Riboflavin presents a competitive inhibition mode with IC50 values in the medium µM range of 79.4 ± 5.0 µM for ZIKV NS2B/NS3pro and 45.7 ± 2.9 μM for YFV NS2B/NS3pro. Against CHIKV nsP2pro, the vitamin showed a very strong effect (93 ± 5.7 nM). The determined dissociation constants (KD) are significantly below the threshold value of 30 µM. The ligand binding increases the thermal stability between 4 °C and 8 °C. Unexpectedly, riboflavin showed inhibiting activity against another viral protein; the molecule was also able to inhibit the viral entry of CHIKV. Molecular dynamics simulations indicated great stability of riboflavin in the protease active site, which validates the repurposing of riboflavin as a promising molecule in drug development against the viruses presented here.
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Affiliation(s)
- Raphael J. Eberle
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany;
- Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße, 40225 Düsseldorf, Germany
| | - Danilo S. Olivier
- Center of Integrated Sciences, Campus Cimba, Federal University of Tocantins, Araguaína 77824-838, TO, Brazil;
| | - Marcos S. Amaral
- Institute of Physics, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, MS, Brazil;
| | - Carolina C. Pacca
- Instituto Superior de Educação Ceres, FACERES Medical School, São José do Rio Preto 15090-305, SP, Brazil;
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto-FAMERP, São José do Rio Preto 15090-000, SP, Brazil;
| | - Mauricio L. Nogueira
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto-FAMERP, São José do Rio Preto 15090-000, SP, Brazil;
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Raghuvir K. Arni
- Multiuser Center for Biomolecular Innovation, Department of Physics, IBILCE, São Paulo State University, São Jose do Rio Preto 15054-000, SP, Brazil;
| | - Dieter Willbold
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany;
- Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße, 40225 Düsseldorf, Germany
- JuStruct: Jülich Centre for Structural Biology, Forchungszentrum Jülich, 52428 Jülich, Germany
| | - Monika A. Coronado
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany;
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3
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Zhang Q, Huang X, Zhang L, Jin Z. Isothermal Titration Calorimetry Directly Measures the Selective Swelling of Block Copolymer Vesicles in the Presence of Organic Acid. ACS OMEGA 2022; 7:10580-10587. [PMID: 35382279 PMCID: PMC8973060 DOI: 10.1021/acsomega.2c00124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 03/02/2022] [Indexed: 05/06/2023]
Abstract
Block copolymer (BCP) vesicles loaded with drug molecules may have a nonidentical swelling behavior due to the strong interactions between BCP vesicles and loaded molecules. A thermodynamic study of the swelling for such a system is of great importance in clarifying their pH-gated drug delivery behavior. In this study, the selective swelling of polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) vesicles in the presence of different acids was compared using dynamic light scattering, zeta-potential, and isothermal titration calorimetry (ITC) measurements. Transmission electron microscopy observation verified that these PS-b-P2VP vesicles were mainly multilamellar. Importantly, using the ITC measurement, we first compared the thermodynamic parameters, including ΔH, ΔG, and ΔS, association binding sites (N), and binding association constants (K a) in the selective swelling of the PS-b-P2VP vesicles in low pH (pH ∼3.5), with or without a hydrogen bonding interaction. We observed that the existence of a hydrogen bonding interaction between tartaric acid/malic acid and PS-b-P2VP generates a limitation to the selective swelling of PS-b-P2VP vesicles, in which conditions will depend on the molecular structures of the organic acids and PS-b-P2VP. This work first provides a quantitative insight on the swelling of BCP vesicles in the presence of hydrogen bonding and highlights the power of ITC measurements for investigating the structural transformation of polymer nanostructures.
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Núñez RN, Veglia AV, Pacioni NL. MultiShapeC, an algorithm to assess concentration in multi-shape nanoparticle samples: nanosilver, a case study. RSC Adv 2022; 12:26550-26555. [PMID: 36275155 PMCID: PMC9486825 DOI: 10.1039/d2ra04078f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/09/2022] [Indexed: 11/23/2022] Open
Abstract
Shape, size, and dispersity play a crucial role in the calculation of colloidal nanoparticle concentrations, which results in remarkable differences in the determination of parameters like Stern–Volmer constants. In this work, we propose an algorithm named MultiShapeC to include the variability in shapes and polydispersity in the concentration calculation. This algorithm was validated using the quenching of carbazole fluorescence emission by silver nanoparticles. An algorithm to include multi-shape and polydispersity in the nanoparticle concentration calculation is presented.![]()
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Affiliation(s)
- Rodrigo Nicolás Núñez
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Orgánica, Haya de la Torre y Medina Allende s/n, Ciudad Universitaria, X5000HUA Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), INFIQC, Córdoba, Argentina
| | - Alicia Viviana Veglia
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Orgánica, Haya de la Torre y Medina Allende s/n, Ciudad Universitaria, X5000HUA Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), INFIQC, Córdoba, Argentina
| | - Natalia Lorena Pacioni
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Orgánica, Haya de la Torre y Medina Allende s/n, Ciudad Universitaria, X5000HUA Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), INFIQC, Córdoba, Argentina
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5
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Eberle RJ, Olivier DS, Amaral MS, Willbold D, Arni RK, Coronado MA. Promising Natural Compounds against Flavivirus Proteases: Citrus Flavonoids Hesperetin and Hesperidin. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10102183. [PMID: 34685992 PMCID: PMC8539695 DOI: 10.3390/plants10102183] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 05/04/2023]
Abstract
Ubiquitous in citrus plants, Hesperidin and Hesperetin flavanones possess several biological functions, including antiviral activity. Arbovirus infections pose an ever-increasing threat to global healthcare systems. Among the severe arboviral infections currently known are those caused by members of the Flavivirus genus, for example, Dengue Virus-DENV, Yellow Fever Virus-YFV, and West Nile Virus-WNV. In this study, we characterize the inhibitory effect of Hesperidin and Hesperetin against DENV2, YFV, and WNV NS2B/NS3 proteases. We report the noncompetitive inhibition of the NS2B/NS3pro by the two bioflavonoids with half maximal inhibitory concentration (IC50) values <5 µM for HST and <70 µM for HSD. The determined dissociation constants (KD) of both flavonoids is significantly below the threshold value of 30 µM. Our findings demonstrate that a new generation of anti-flavivirus drugs could be developed based on selective optimization of both molecules.
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Affiliation(s)
- Raphael J. Eberle
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, 52428 Jülich, Germany;
- Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße, 40225 Düsseldorf, Germany
- Correspondence: (R.J.E.); (M.A.C.)
| | - Danilo S. Olivier
- Integrated Sciences Center, Federal University of Tocantins, Araguaína 77824-838, Brazil;
| | - Marcos S. Amaral
- Institute of Physics, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil;
| | - Dieter Willbold
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, 52428 Jülich, Germany;
- Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße, 40225 Düsseldorf, Germany
- JuStruct: Jülich Centre for Structural Biology, Forchungszentrum Jülich, 52428 Jülich, Germany
| | - Raghuvir K. Arni
- Multiuser Center for Biomolecular Innovation, Departament of Physics, Universidade Estadual Paulista (UNESP), São Jose do Rio Preto 15054-000, Brazil;
| | - Monika A. Coronado
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, 52428 Jülich, Germany;
- Correspondence: (R.J.E.); (M.A.C.)
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6
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Carbazole-hydrazinobenzothiazole a selective turn-on fluorescent sensor for Hg2+ions – Its protein binding and electrochemical application studies. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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7
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Eberle RJ, Olivier DS, Pacca CC, Avilla CMS, Nogueira ML, Amaral MS, Willbold D, Arni RK, Coronado MA. In vitro study of Hesperetin and Hesperidin as inhibitors of zika and chikungunya virus proteases. PLoS One 2021; 16:e0246319. [PMID: 33661906 PMCID: PMC7932080 DOI: 10.1371/journal.pone.0246319] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 01/15/2021] [Indexed: 11/19/2022] Open
Abstract
The potential outcome of flavivirus and alphavirus co-infections is worrisome due to the development of severe diseases. Hundreds of millions of people worldwide live under the risk of infections caused by viruses like chikungunya virus (CHIKV, genus Alphavirus), dengue virus (DENV, genus Flavivirus), and zika virus (ZIKV, genus Flavivirus). So far, neither any drug exists against the infection by a single virus, nor against co-infection. The results described in our study demonstrate the inhibitory potential of two flavonoids derived from citrus plants: Hesperetin (HST) against NS2B/NS3pro of ZIKV and nsP2pro of CHIKV and, Hesperidin (HSD) against nsP2pro of CHIKV. The flavonoids are noncompetitive inhibitors and the determined IC50 values are in low µM range for HST against ZIKV NS2B/NS3pro (12.6 ± 1.3 µM) and against CHIKV nsP2pro (2.5 ± 0.4 µM). The IC50 for HSD against CHIKV nsP2pro was 7.1 ± 1.1 µM. The calculated ligand efficiencies for HST were > 0.3, which reflect its potential to be used as a lead compound. Docking and molecular dynamics simulations display the effect of HST and HSD on the protease 3D models of CHIKV and ZIKV. Conformational changes after ligand binding and their effect on the substrate-binding pocket of the proteases were investigated. Additionally, MTT assays demonstrated a very low cytotoxicity of both the molecules. Based on our results, we assume that HST comprise a chemical structure that serves as a starting point molecule to develop a potent inhibitor to combat CHIKV and ZIKV co-infections by inhibiting the virus proteases.
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Affiliation(s)
- Raphael J. Eberle
- Multiuser Center for Biomolecular Innovation, Departament of Physics, Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto, SP, Brazil
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany
| | | | - Carolina C. Pacca
- Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto, SP, Brazil
- FACERES Medical School, São José do Rio Preto, Brazil
| | - Clarita M. S. Avilla
- Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto, SP, Brazil
| | - Mauricio L. Nogueira
- Faculdade de Medicina de São José do Rio Preto–FAMERP, São José do Rio Preto, Brazil
| | - Marcos S. Amaral
- Institute of Physics, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Dieter Willbold
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany
- Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße, Düsseldorf, Germany
- JuStruct: Jülich Centre for Structural Biology, Forchungszentrum Jülich, Jülich, Germany
| | - Raghuvir K. Arni
- Multiuser Center for Biomolecular Innovation, Departament of Physics, Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto, SP, Brazil
| | - Monika A. Coronado
- Multiuser Center for Biomolecular Innovation, Departament of Physics, Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto, SP, Brazil
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany
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8
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Torres MAM, Veglia AV, Pacioni NL. The fluorescence quenching of rhodamine 6G as an alternative sensing strategy for the quantification of silver and gold nanoparticles. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105645] [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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9
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Darole RS, Christopher Leslee DB, Mukherjee A, Gonnade RG, Karuppannan S, Senthilkumar B. Anthrone‐spirolactam and quinoline hybrid based sensor for selective fluorescent detection of Fe
3+
ions. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5867] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Ratanamala S. Darole
- Organic Chemistry Division CSIR – National Chemical Laboratory Dr. Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India
| | | | - Anagh Mukherjee
- Physical/Materials Chemistry CSIR – National Chemical Laboratory Dr. Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India
| | - Rajesh G. Gonnade
- Center for Materials Characterization CSIR – National Chemical Laboratory Dr. Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India
| | - Sekar Karuppannan
- Department of Science and Humanities Anna University – University College of Engineering Dindigul 624622 India
| | - Beeran Senthilkumar
- Organic Chemistry Division CSIR – National Chemical Laboratory Dr. Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India
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10
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Colorimetric and electrochemical sensing of As(III) using calix[4]pyrrole capped gold nanoparticles and evaluation of its cytotoxic activity. J INCL PHENOM MACRO 2020. [DOI: 10.1007/s10847-020-01005-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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11
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Arriagada-Petersen C, Fernandez P, Gomez M, Ravello N, Palomo I, Fuentes E, Ávila F. Effect of advanced glycation end products on platelet activation and aggregation: a comparative study of the role of glyoxal and methylglyoxal. Platelets 2020; 32:507-515. [PMID: 32449466 DOI: 10.1080/09537104.2020.1767770] [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] [Indexed: 12/16/2022]
Abstract
Advanced glycation end products (AGEs) arising from dietary intake have been associated with numerous chronic diseases including cardiovascular diseases. The interaction between platelets and AGEs has been proposed to play a role in the etiology of cardiovascular diseases. However, the effects of the interaction between platelets and Maillard reaction products generated from glyoxal (Gly) or methylglyoxal (MG) are poorly understood. In this work, the effects of AGEs generated by the reaction between Gly or MG with Lys or bovine serum albumin (BSA) on platelet activation and aggregation were assessed. AGEs were generated incubating Gly or MG with Lys or BSA during 5 hours or 14 days, respectively. AGEs generation were characterized by kinetic studies and by amino acid analysis. Human platelet-rich plasma (PRP) was incubated with different concentrations of AGEs from Lys-MG or Lys-Gly and BSA-MG or BSA-Gly. Platelet activation was determined quantifying the expression of CD62 (P-selectin) in PRP exposed to different AGEs concentrations. It was found that Lys-MG and Lys-Gly induced an increase in P-selectin expression (p < .05), being 33.9% higher for Lys-MG when compared to Lys-Gly. Platelets incubated in the presence of BSA-MG and BSA-Gly did not show an increase in the P-selectin expression. Platelet aggregation was significantly higher for the mixture Lys-MG (in all the range of concentrations evaluated), whereas for Lys-Gly it was only significant the highest concentration (Lys 168 µM/Gly 168 µM). It was observed a significant increase in platelet aggregation induced by ADP for samples BSA-Gly. AGEs formed with MG-Lys induce a higher activation and aggregation of platelets when compared to those formed from Gly-Lys.
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Affiliation(s)
| | - Paula Fernandez
- Escuela De Nutrición Y Dietética, Facultad De Ciencias De La Salud, Universidad De Talca, Talca, Chile
| | - Maira Gomez
- Escuela De Nutrición Y Dietética, Facultad De Ciencias De La Salud, Universidad De Talca, Talca, Chile
| | - Natalia Ravello
- Escuela De Nutrición Y Dietética, Facultad De Ciencias De La Salud, Universidad De Talca, Talca, Chile
| | - Iván Palomo
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad De Talca, Talca, Chile
| | - Eduardo Fuentes
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad De Talca, Talca, Chile
| | - Felipe Ávila
- Escuela De Nutrición Y Dietética, Facultad De Ciencias De La Salud, Universidad De Talca, Talca, Chile
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12
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Lazurko C, Khatoon Z, Goel K, Sedlakova V, Eren Cimenci C, Ahumada M, Zhang L, Mah TF, Franco W, Suuronen EJ, Alarcon EI. Multifunctional Nano and Collagen-Based Therapeutic Materials for Skin Repair. ACS Biomater Sci Eng 2020; 6:1124-1134. [PMID: 33464871 DOI: 10.1021/acsbiomaterials.9b01281] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel strategy is needed for treating nonhealing wounds, which is able to simultaneously eradicate pathogenic bacteria and promote tissue regeneration. This would improve patient outcome and reduce the number of lower limb amputations. In this work, we present a multifunctional therapeutic approach able to control bacterial infections, provide a protective barrier to a full-thickness wound, and improve wound healing in a clinically relevant animal model. Our approach uses a nanoengineered antimicrobial nanoparticle for creating a sprayable layer onto the wound bed that prevents bacterial proliferation and also eradicates preformed biofilms. As a protective barrier for the wound, we developed a thermoresponsive collagen-based matrix that has prohealing properties and is able to fill wounds independent of their geometries. Our results indicate that using a combination of the matrix with full-thickness microscopic skin tissue columns synergistically contributed to faster and superior skin regeneration in a nonhealing wound model in diabetic mice.
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Affiliation(s)
- Caitlin Lazurko
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada.,Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
| | - Zohra Khatoon
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada
| | - Keshav Goel
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada.,Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
| | - Veronika Sedlakova
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada
| | - Cagla Eren Cimenci
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada
| | - Manuel Ahumada
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada.,Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile.,Wellman Centre for Photomedicine, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston 02114, Massachusetts, United States
| | - Li Zhang
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
| | - Thien-Fah Mah
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
| | - Walfre Franco
- Wellman Centre for Photomedicine, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston 02114, Massachusetts, United States
| | - Erik J Suuronen
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada.,Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
| | - Emilio I Alarcon
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa K1Y4W7, Canada.,Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa K1H8M5, Canada
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13
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Bala Subramaniyan S, Senthilnathan R, Arunachalam J, Anbazhagan V. Revealing the Significance of the Glycan Binding Property of Butea monosperma Seed Lectin for Enhancing the Antibiofilm Activity of Silver Nanoparticles against Uropathogenic Escherichia coli. Bioconjug Chem 2019; 31:139-148. [DOI: 10.1021/acs.bioconjchem.9b00821] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Siva Bala Subramaniyan
- School of Chemical & Biotechnology, Shanmugha Arts, Science, Technology & Research Academy (SASTRA) Deemed University, Thanjavur, Tamil Nadu 613401, India
| | - Rajendran Senthilnathan
- School of Chemical & Biotechnology, Shanmugha Arts, Science, Technology & Research Academy (SASTRA) Deemed University, Thanjavur, Tamil Nadu 613401, India
| | - Jothi Arunachalam
- School of Chemical & Biotechnology, Shanmugha Arts, Science, Technology & Research Academy (SASTRA) Deemed University, Thanjavur, Tamil Nadu 613401, India
| | - Veerappan Anbazhagan
- School of Chemical & Biotechnology, Shanmugha Arts, Science, Technology & Research Academy (SASTRA) Deemed University, Thanjavur, Tamil Nadu 613401, India
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14
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Huerta-Aguilar CA, Ramírez-Guzmán B, Thangarasu P, Narayanan J, Singh N. Simultaneous recognition of cysteine and cytosine using thiophene-based organic nanoparticles decorated with Au NPs and bio-imaging of cells. Photochem Photobiol Sci 2019; 18:1761-1772. [PMID: 31111854 DOI: 10.1039/c9pp00060g] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biomolecules like cysteine and cytosine play a significant role in many physiological processes, and their unusual level in biological systems can lead to many diseases including cancer. Indeed, the need for selective detection of these moieties by a fluorescence probe is imperative. Thus, thiophene based Schiff N,N'-bis(thiophene-2-ylmethylene)thiophenemethane (BMTM) was synthesized and then characterized using several analytical techniques before converting it into organic nanoparticles (ONPs). Then, fluorescent organic inorganic nanohybrids (FONs) were obtained after decorating ONPs with AuNPs to yield BMTM-Au-ONPs (FONPs). The morphology of the particles, analyzed using a Transmission Electron Microscope (TEM), shows that AuNPs were embedded with low density organic matter (ONPs). FONPs were employed to recognize cysteine and cytosine simultaneously. No interference was observed from other moieties such as guanine, uracyl, NADH, NAD, ATP, and adenine during the detection. It means that the intensity of the fluorescence signal was significantly changed (enhanced for cytosine and quenched for cysteine). So, FONPs were used to detect cysteine and cytosine in real samples, like Saccharomyces cerevisiae cells. As expected, no considerable fluorescence signal for cysteine was observed, while for cytosine, strong fluorescence signals were detected in the cells. DFT was used to explain the interaction of FONPs with cysteine or cytosine.
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Affiliation(s)
- Carlos Alberto Huerta-Aguilar
- Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Coyoacán, 04510 México D.F., Mexico. and División de Nanotecnología, Universidad Politécnica del Valle de México, Av. Mexiquense, C.P. 54910 Tultitlán, Estado de México, Mexico
| | - Brayan Ramírez-Guzmán
- División de Nanotecnología, Universidad Politécnica del Valle de México, Av. Mexiquense, C.P. 54910 Tultitlán, Estado de México, Mexico
| | - Pandiyan Thangarasu
- Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Coyoacán, 04510 México D.F., Mexico.
| | - Jayanthi Narayanan
- División de Nanotecnología, Universidad Politécnica del Valle de México, Av. Mexiquense, C.P. 54910 Tultitlán, Estado de México, Mexico
| | - Narinder Singh
- Department of chemistry, Indian Institute of Technology (IIT), Ropar, India
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15
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Goel K, Zuñiga-Bustos M, Lazurko C, Jacques E, Galaz-Araya C, Valenzuela-Henriquez F, Pacioni NL, Couture JF, Poblete H, Alarcon EI. Nanoparticle Concentration vs Surface Area in the Interaction of Thiol-Containing Molecules: Toward a Rational Nanoarchitectural Design of Hybrid Materials. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17697-17705. [PMID: 31013043 DOI: 10.1021/acsami.9b03942] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The effect of accounting for the total surface in the association of thiol-containing molecules to nanosilver was assessed using isothermal titration calorimetry, along with a new open access algorithm that calculates the total surface area for samples of different polydispersity. Further, we used advanced molecular dynamic calculations to explore the underlying mechanisms for the interaction of the studied molecules in the presence of a nanosilver surface in the form of flat surfaces or as three-dimensional pseudospherical nanostructures. Our data indicate that not only is the total surface area available for binding but also the supramolecular arrangements of the molecules in the near proximity of the nanosilver surface strongly affects the affinity of thiol-containing molecules to nanosilver surfaces.
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Affiliation(s)
- Keshav Goel
- Division of Cardiac Surgery , University of Ottawa Heart Institute , 40 Ruskin Street , Ottawa , Ontario , Canada K1Y 4W7
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine , University of Ottawa , 451 Smyth Road , Ottawa , Ontario , Canada K1H 8M5
| | - Matias Zuñiga-Bustos
- Center for Bioinformatics and Molecular Simulations, Facultad de Ingeniería , Universidad de Talca , Campus Lircay s/n , Talca 3460000 , Chile
| | - Caitlin Lazurko
- Division of Cardiac Surgery , University of Ottawa Heart Institute , 40 Ruskin Street , Ottawa , Ontario , Canada K1Y 4W7
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine , University of Ottawa , 451 Smyth Road , Ottawa , Ontario , Canada K1H 8M5
| | - Erik Jacques
- Division of Cardiac Surgery , University of Ottawa Heart Institute , 40 Ruskin Street , Ottawa , Ontario , Canada K1Y 4W7
| | - Constanza Galaz-Araya
- Center for Bioinformatics and Molecular Simulations, Facultad de Ingeniería , Universidad de Talca , Campus Lircay s/n , Talca 3460000 , Chile
| | - Francisco Valenzuela-Henriquez
- Instituto de Matemática , Pontificia Universidad Católica de Valparaíso , Blanco Viel 596, Cerro Barón , Valparaíso 2350026 , Chile
| | - Natalia L Pacioni
- Facultad de Ciencias Químicas, Departamento de Química Orgánica , Universidad Nacional de Córdoba , Haya de la Torre y Medina Allende s/n, Ciudad Universitaria , Córdoba X5000HUA , Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), INFIQC , Buenos Aires 1418 , Córdoba X5000IND , Argentina
| | - Jean-François Couture
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine , University of Ottawa , 451 Smyth Road , Ottawa , Ontario , Canada K1H 8M5
| | - Horacio Poblete
- Center for Bioinformatics and Molecular Simulations, Facultad de Ingeniería , Universidad de Talca , Campus Lircay s/n , Talca 3460000 , Chile
- Núcleo Científico Multidisciplinario, Dirección de Investigación , Universidad de Talca , Talca 3460000 , Chile
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD) , Talca 3460000 , Chile
| | - Emilio I Alarcon
- Division of Cardiac Surgery , University of Ottawa Heart Institute , 40 Ruskin Street , Ottawa , Ontario , Canada K1Y 4W7
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine , University of Ottawa , 451 Smyth Road , Ottawa , Ontario , Canada K1H 8M5
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16
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Peinado RDS, Olivier DS, Eberle RJ, de Moraes FR, Amaral MS, Arni RK, Coronado MA. Binding studies of a putative C. pseudotuberculosis target protein from Vitamin B 12 Metabolism. Sci Rep 2019; 9:6350. [PMID: 31015525 PMCID: PMC6478909 DOI: 10.1038/s41598-019-42935-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 03/13/2019] [Indexed: 01/20/2023] Open
Abstract
Vitamin B12 acts as a cofactor for various metabolic reactions important in living organisms. The Vitamin B12 biosynthesis is restricted to prokaryotes, which means, all eukaryotic organisms must acquire this molecule through diet. This study presents the investigation of Vitamin B12 metabolism and the characterization of precorrin-4 C(11)-methyltransferase (CobM), an enzyme involved in the biosynthesis of Vitamin B12 in Corynebacterium pseudotuberculosis. The analysis of the C. pseudotuberculosis genome identified two Vitamin B12-dependent pathways, which can be strongly affected by a disrupted vitamin metabolism. Molecular dynamics, circular dichroism, and NMR-STD experiments identified regions in CobM that undergo conformational changes after s-adenosyl-L-methionine binding to promote the interaction of precorrin-4, a Vitamin B12 precursor. The binding of s-adenosyl-L-methionine was examined along with the competitive binding of adenine, dATP, and suramin. Based on fluorescence spectroscopy experiments the dissociation constant for the four ligands and the target protein could be determined; SAM (1.4 ± 0.7 µM), adenine (17.8 ± 1.5 µM), dATP (15.8 ± 2.0 µM), and Suramin (6.3 ± 1.1 µM). The results provide rich information for future investigations of potential drug targets within the C. pseudotuberculosis's Vitamin B12 metabolism and related pathways to reduce the pathogen's virulence in its hosts.
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Affiliation(s)
- Rafaela Dos S Peinado
- Multiuser Center for Biomolecular Innovation, Departament of Physics, Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto-SP, 15054-000, Brazil
| | - Danilo S Olivier
- Multiuser Center for Biomolecular Innovation, Departament of Physics, Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto-SP, 15054-000, Brazil
| | - Raphael J Eberle
- Multiuser Center for Biomolecular Innovation, Departament of Physics, Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto-SP, 15054-000, Brazil
| | - Fabio R de Moraes
- Multiuser Center for Biomolecular Innovation, Departament of Physics, Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto-SP, 15054-000, Brazil
| | - Marcos S Amaral
- Institute of Physics, Federal University of Mato Grosso do Sul, Campo Grande, MS, 79090-700, Brazil
| | - Raghuvir K Arni
- Multiuser Center for Biomolecular Innovation, Departament of Physics, Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto-SP, 15054-000, Brazil.
| | - Monika A Coronado
- Multiuser Center for Biomolecular Innovation, Departament of Physics, Instituto de Biociências Letras e Ciências Exatas (Ibilce), Universidade Estadual Paulista (UNESP), São Jose do Rio Preto-SP, 15054-000, Brazil.
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17
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The polyanions heparin and suramin impede binding of free adenine to a DNA glycosylase from C. pseudotuberculosis. Int J Biol Macromol 2019; 125:459-468. [DOI: 10.1016/j.ijbiomac.2018.12.067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 12/05/2018] [Accepted: 12/06/2018] [Indexed: 12/31/2022]
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18
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Roy N, Ghosh R, Das K, Roy D, Ghosh T, Roy MN. Study to synthesize and characterize host-guest encapsulation of antidiabetic drug (TgC) and hydroxy propyl-β-cyclodextrin augmenting the antidiabetic applicability in biological system. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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19
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Berlina AN, Bartosh AV, Sotnikov DV, Zherdev AV, Xu C, Dzantiev BB. Complexes of Gold Nanoparticles with Antibodies in Immunochromatography: Comparison of Direct and Indirect Immobilization of Antibodies for the Detection of Antibiotics. ACTA ACUST UNITED AC 2019. [DOI: 10.1134/s1995078018040031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Rey V, Gramajo Feijoo ME, Giménez RE, Tuttolomondo ME, Morán Vieyra FE, Sosa Morales MC, Borsarelli CD. Kinetics and growth mechanism of the photoinduced synthesis of silver nanoparticles stabilized with lysozyme. Colloids Surf B Biointerfaces 2018; 172:10-16. [PMID: 30118959 DOI: 10.1016/j.colsurfb.2018.08.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 08/07/2018] [Accepted: 08/09/2018] [Indexed: 10/28/2022]
Abstract
A fast and single-step procedure is reported for the preparation of stable solutions of spherical-shaped silver nanoparticles (AgNPs) coated with lysozyme (LZ). The preparation of the AgNP@LZ nanocomposites was based on the reduction of Ag+ with ketyl radicals photo-generated by the UVA-photolysis of the benzoin I-2959. Both reaction precursors bind to LZ, modifying its superficial charge and conformational structure. The photo-induced kinetics of formation of the AgNPs as a function of the LZ concentration was monitored in-situ by UV-vis absorption spectroscopy. The multivariate curve resolution-alternating least square (MCR-ALS) method was used for the deconvolution of the kinetic curves for each transient species formed before the growth of the final AgNPs colloids. The Kolmogorov-Johnson-Mehl-Avrami (KJMA) model to describe the formation of the AgNPs was used, and the respective first-order rate constants for the growth of the AgNPs as a function of the lysozyme concentration were calculated and the role of the protein capping in the growth kinetics was evaluated. Despite the protein being partially oxidized by the photo-generated radicals, it was strongly adsorbed onto the silver surface forming a tight coating shell around the AgNPs of approximately 30-60 protein molecules. As a result of the partial denaturation and crowded packing, its intrinsic lytic activity was strongly reduced.
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Affiliation(s)
- Valentina Rey
- Instituto de Bionanotecnología del NOA (INBIONATEC), Universidad Nacional de Santiago del Estero (UNSE), CONICET, RN9, km 1125, G4206XCP, Santiago del Estero, Argentina
| | - Marcelo E Gramajo Feijoo
- INQUINOA-CONICET, Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Rodrigo E Giménez
- Instituto de Bionanotecnología del NOA (INBIONATEC), Universidad Nacional de Santiago del Estero (UNSE), CONICET, RN9, km 1125, G4206XCP, Santiago del Estero, Argentina
| | - María E Tuttolomondo
- INQUINOA-CONICET, Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Faustino E Morán Vieyra
- Instituto de Bionanotecnología del NOA (INBIONATEC), Universidad Nacional de Santiago del Estero (UNSE), CONICET, RN9, km 1125, G4206XCP, Santiago del Estero, Argentina
| | - Marcelo C Sosa Morales
- Instituto de Bionanotecnología del NOA (INBIONATEC), Universidad Nacional de Santiago del Estero (UNSE), CONICET, RN9, km 1125, G4206XCP, Santiago del Estero, Argentina
| | - Claudio D Borsarelli
- Instituto de Bionanotecnología del NOA (INBIONATEC), Universidad Nacional de Santiago del Estero (UNSE), CONICET, RN9, km 1125, G4206XCP, Santiago del Estero, Argentina.
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21
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Grassano ME, Altamirano MS, Militello MP, Arbeloa EM, Previtali CM, Bertolotti SG. A Comparative Study on the Photophysical and Photochemical Properties of Dyes in the Presence of Low Generation Amino-terminated Polyamidoamine Dendrimers. Photochem Photobiol 2018; 94:1129-1137. [DOI: 10.1111/php.13033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 09/19/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Micaela E. Grassano
- Departamento de Química; Facultad de Ciencias Exactas Físico Químicas y Naturales; Universidad Nacional de Río Cuarto; Río Cuarto Argentina
| | - Marcela S. Altamirano
- Departamento de Química; Facultad de Ciencias Exactas Físico Químicas y Naturales; Universidad Nacional de Río Cuarto; Río Cuarto Argentina
| | - María P. Militello
- Departamento de Química; Facultad de Ciencias Exactas Físico Químicas y Naturales; Universidad Nacional de Río Cuarto; Río Cuarto Argentina
| | - Ernesto M. Arbeloa
- Departamento de Química; Facultad de Ciencias Exactas Físico Químicas y Naturales; Universidad Nacional de Río Cuarto; Río Cuarto Argentina
| | - Carlos M. Previtali
- Departamento de Química; Facultad de Ciencias Exactas Físico Químicas y Naturales; Universidad Nacional de Río Cuarto; Río Cuarto Argentina
| | - Sonia G. Bertolotti
- Departamento de Química; Facultad de Ciencias Exactas Físico Químicas y Naturales; Universidad Nacional de Río Cuarto; Río Cuarto Argentina
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22
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Coronado MA, Eberle RJ, Bleffert N, Feuerstein S, Olivier DS, de Moraes FR, Willbold D, Arni RK. Zika virus NS2B/NS3 proteinase: A new target for an old drug - Suramin a lead compound for NS2B/NS3 proteinase inhibition. Antiviral Res 2018; 160:118-125. [PMID: 30393012 DOI: 10.1016/j.antiviral.2018.10.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 09/25/2018] [Accepted: 10/24/2018] [Indexed: 01/15/2023]
Abstract
Zika virus infection is the focus of much research due to the medical and social repercussions. Due the role of the viral NS2B/NS3 proteinase in maturation of the viral proteins, it had become an attractive antiviral target. Numerous investigations on viral epidemiology, structure and function analysis, vaccines, and therapeutic drugs have been conducted around the world. At present, no approved vaccine or even drugs have been reported. Thus, there is an urgent need to develop therapeutic agents to cure this epidemic disease. In the present study, we identified the polyanion suramin, an approved antiparasitic drug with antiviral properties, as a potential inhibitor of Zika virus complex NS2B/NS3 proteinase with IC50 of 47 μM. Using fluorescence spectroscopy results we could determine a kd value of 28 μM and had shown that the ligand does not affect the thermal stability of the protein. STD NMR spectroscopy experiments and molecular docking followed by molecular dynamics simulation identified the binding epitopes of the molecule and shows the mode of interaction, respectively. The computational analysis showed that suramin block the Ser135 residue and interact with the catalytically histidine residue.
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Affiliation(s)
- Monika Aparecida Coronado
- Multiuser Center for Biomolecular Innovation, Department of Physics, Universidade Estadual Paulista (UNESP), São José do Rio Preto SP, 15054-000, Brazil.
| | - Raphael Josef Eberle
- Multiuser Center for Biomolecular Innovation, Department of Physics, Universidade Estadual Paulista (UNESP), São José do Rio Preto SP, 15054-000, Brazil
| | - Nicole Bleffert
- Institute of Complex System, Structural Biochemistry (ICS-6), Forchungszentrum Jülich, Germany; Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße, Germany
| | - Sophie Feuerstein
- Institute of Complex System, Structural Biochemistry (ICS-6), Forchungszentrum Jülich, Germany; Institute of Complex System, Structural Biochemistry (ICS-6), Forchungszentrum Jülich, Germany
| | - Danilo Silva Olivier
- Multiuser Center for Biomolecular Innovation, Department of Physics, Universidade Estadual Paulista (UNESP), São José do Rio Preto SP, 15054-000, Brazil
| | - Fabio Rogerio de Moraes
- Multiuser Center for Biomolecular Innovation, Department of Physics, Universidade Estadual Paulista (UNESP), São José do Rio Preto SP, 15054-000, Brazil
| | - Dieter Willbold
- Institute of Complex System, Structural Biochemistry (ICS-6), Forchungszentrum Jülich, Germany; Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße, Germany
| | - Raghuvir Krishnaswamy Arni
- Multiuser Center for Biomolecular Innovation, Department of Physics, Universidade Estadual Paulista (UNESP), São José do Rio Preto SP, 15054-000, Brazil.
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23
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Improving reproducibility between batches of silver nanoparticles using an experimental design approach. Microchem J 2018. [DOI: 10.1016/j.microc.2018.05.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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24
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Ahumada M, Bohne C, Oake J, Alarcon EI. Protein capped nanosilver free radical oxidation: role of biomolecule capping on nanoparticle colloidal stability and protein oxidation. Chem Commun (Camb) 2018; 54:4724-4727. [PMID: 29683156 DOI: 10.1039/c7cc08629f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We studied the effect of human serum albumin protein capped spherical nanosilver on the nanoparticle stability upon peroxyl radical oxidation. The nanoparticle-protein composite is less prone to oxidation compared to the individual components. However, higher concentrations of hydrogen peroxide were formed in the nanoparticle-protein system.
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Affiliation(s)
- Manuel Ahumada
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Canada.
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25
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Lazurko C, Ahumada M, Valenzuela-Henríquez F, Alarcon EI. NANoPoLC algorithm for correcting nanoparticle concentration by sample polydispersity. NANOSCALE 2018; 10:3166-3170. [PMID: 29388651 DOI: 10.1039/c7nr08672e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Variability in the polydispersity of colloidal nanoparticles results in significant differences in the total number of nanoparticles available for the determination of their concentration, which ultimately affects their bioavailability and biodistribution. In the current work, we developed a novel algorithm, named Nanoparticle Polydispersity Corrector (NANoPoLC), which was shown to render a more realistic calculation of the actual nanoparticle concentration in solution.
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Affiliation(s)
- Caitlin Lazurko
- Bio-nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Rm H5229, Ottawa, Canada.
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26
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Goodman AM, Neumann O, Nørregaard K, Henderson L, Choi MR, Clare SE, Halas NJ. Near-infrared remotely triggered drug-release strategies for cancer treatment. Proc Natl Acad Sci U S A 2017; 114:12419-12424. [PMID: 29109274 PMCID: PMC5703316 DOI: 10.1073/pnas.1713137114] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Remotely controlled, localized drug delivery is highly desirable for potentially minimizing the systemic toxicity induced by the administration of typically hydrophobic chemotherapy drugs by conventional means. Nanoparticle-based drug delivery systems provide a highly promising approach for localized drug delivery, and are an emerging field of interest in cancer treatment. Here, we demonstrate near-IR light-triggered release of two drug molecules from both DNA-based and protein-based hosts that have been conjugated to near-infrared-absorbing Au nanoshells (SiO2 core, Au shell), each forming a light-responsive drug delivery complex. We show that, depending upon the drug molecule, the type of host molecule, and the laser illumination method (continuous wave or pulsed laser), in vitro light-triggered release can be achieved with both types of nanoparticle-based complexes. Two breast cancer drugs, docetaxel and HER2-targeted lapatinib, were delivered to MDA-MB-231 and SKBR3 (overexpressing HER2) breast cancer cells and compared with release in noncancerous RAW 264.7 macrophage cells. Continuous wave laser-induced release of docetaxel from a nanoshell-based DNA host complex showed increased cell death, which also coincided with nonspecific cell death from photothermal heating. Using a femtosecond pulsed laser, lapatinib release from a nanoshell-based human serum albumin protein host complex resulted in increased cancerous cell death while noncancerous control cells were unaffected. Both methods provide spatially and temporally localized drug-release strategies that can facilitate high local concentrations of chemotherapy drugs deliverable at a specific treatment site over a specific time window, with the potential for greatly minimized side effects.
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Affiliation(s)
| | - Oara Neumann
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005
| | - Kamilla Nørregaard
- The Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Luke Henderson
- Department of Chemistry, Rice University, Houston, TX 77005
| | - Mi-Ran Choi
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Susan E Clare
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Naomi J Halas
- Department of Chemistry, Rice University, Houston, TX 77005;
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005
- Department of Physics and Astronomy, Rice University, Houston, TX 77005
- Department of Bioengineering, Rice University, Houston, TX 77005
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Ahumada M, Jacques E, Andronic C, Comer J, Poblete H, Alarcon EI. Novel specific peptides as superior surface stabilizers for silver nano structures: role of peptide chain length. J Mater Chem B 2017; 5:8925-8928. [DOI: 10.1039/c7tb02349a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three collagen peptides containing the CLK motif were tested for silver nanoparticle surface stabilization.
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Affiliation(s)
- M. Ahumada
- Bio-Nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - E. Jacques
- Bio-Nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - C. Andronic
- Bio-Nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - J. Comer
- Institute of Computational Comparative Medicine, Nanotechnology Innovation Center of Kansas State, and Department of Anatomy and Physiology
- Kansas State University
- USA
| | - H. Poblete
- Center for Bioinformatics and Molecular Simulations
- Facultad de Ingeniería
- Universidad de Talca
- Chile
| | - E. I. Alarcon
- Bio-Nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
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