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Dhillon AK, Dudhe PE, Majumdar S, Barman S, Ghosh D, Dhanasekaran K, Siddhanta S. Imaging of intracellular protein aggregates through plasmon-assisted clusteroluminescence. NANOSCALE 2024; 16:11749-11761. [PMID: 38864278 DOI: 10.1039/d4nr01803f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
The formation of clusters in non-aromatic molecules can give rise to unconventional luminescence or clusteroluminescence. Typically containing heteroatoms without extended conjugation or aromatic rings, these molecules have drawn much attention owing to the prospects of label-free biological imaging. However, their applications have been limited due to the lack of knowledge of the underlying mechanism. Herein, we have elucidated the mechanism of clusteroluminescence from proteins, which were explicitly aggregated using plasmonic silver nanoparticles. The nanoparticles promoted protein aggregation and induced nitrile formation on the surface, which, along with other lone-pair-containing heteroatoms, contributed to enhanced emission in the visible range. Remarkably, this makes imaging of proteins possible with visible excitations, as co-factor-lacking proteins generally undergo electronic transitions only in the ultraviolet range. Furthermore, the inherent protein-aggregating behaviour of plasmonic nanoparticles was harnessed for imaging of intracellular Huntingtin protein aggregates overexpressed in HeLa cells through clusteroluminescence. Significant plasmon-enhanced and red-shifted fluorescence emission was observed, which helped in the imaging and localization of the intracellular aggregates. Density functional theory calculations and transient absorbance spectroscopy were used to probe the molecular interactions at the protein-nanoparticle interface and the charge transfer states, further elucidating the role of nanoparticles and the emission mechanism. This technique thus opens alternate avenues for label-free fluorescence bioimaging.
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Affiliation(s)
- Ashish Kumar Dhillon
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India.
| | - Pranay Eknath Dudhe
- Centrosome and Cilia Laboratory, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, Haryana (NCR Delhi) 121001, India.
| | - Shubhangi Majumdar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India.
| | - Sanmitra Barman
- Center for Advanced Materials and Devices (CAMD), BML Munjal University, Haryana, India
| | - Dibyajyoti Ghosh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India.
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Karthigeyan Dhanasekaran
- Centrosome and Cilia Laboratory, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, Haryana (NCR Delhi) 121001, India.
| | - Soumik Siddhanta
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India.
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Chen Y, Liu Q, Mi S, Yuan S, Yu H, Guo Y, Cheng Y, Qian H, Xie Y, Yao W. The impact of modified polystyrene on lysozyme fibrillation studied by surface-enhanced Raman spectroscopy (SERS). Int J Biol Macromol 2023:124937. [PMID: 37217050 DOI: 10.1016/j.ijbiomac.2023.124937] [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: 03/19/2023] [Revised: 05/13/2023] [Accepted: 05/15/2023] [Indexed: 05/24/2023]
Abstract
Nanoplastics could modulate the fibrillation of amyloid proteins. However, many chemical functional groups are adsorbed to change the interfacial chemistry of nanoplastics in the real world. Herein, this study aimed to investigate the effects of polystyrene (PS), carboxyl modified PS (PS-COOH), and amino modified PS (PS-NH2) on the fibrillation of hen egg-white lysozyme (HEWL). Due to the differences in the interfacial chemistry, concentration was considered an essential factor. PS-NH2 (10 μg/mL) could promote the fibrillation of HEWL similar to PS (50 μg/mL) and PS-COOH (50 μg/mL). Moreover, promoting the primary nucleation step of amyloid fibril formation was the primary reason. The differences in spatial conformation of HEWL were characterized by Fourier transform-infrared spectroscopy and surface enhanced Raman spectroscopy (SERS). Strikingly, a particular signal of SERS of HEWL incubated with PS-NH2 at 1610 cm-1 was found due to the interaction between amino group of PS-NH2 and tryptophan (or tyrosine) of HEWL. Therefore, a new perspective was provided to understand the regulation of interfacial chemistry of nanoplastics on the fibrillation of amyloid proteins. Additionally, this study suggested that SERS could be a powerful method to investigate the interactions between proteins and nanoparticles.
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Affiliation(s)
- Yulun Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Joint International Research Laboratory of Food Safety, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China
| | - Qingrun Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Joint International Research Laboratory of Food Safety, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China
| | - Shuna Mi
- State Key Laboratory of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Joint International Research Laboratory of Food Safety, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China
| | - Shaofeng Yuan
- State Key Laboratory of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Joint International Research Laboratory of Food Safety, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China
| | - Hang Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Joint International Research Laboratory of Food Safety, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China
| | - Yahui Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Joint International Research Laboratory of Food Safety, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China
| | - Yuliang Cheng
- State Key Laboratory of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Joint International Research Laboratory of Food Safety, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China
| | - He Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Joint International Research Laboratory of Food Safety, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China
| | - Yunfei Xie
- State Key Laboratory of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, No.235 Daxue West Road, Hohhot 010021, Inner Mongolia Autonomous Region, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Joint International Research Laboratory of Food Safety, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; Joint International Research Laboratory of Food Safety, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China.
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3
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Graphene Oxide/Silver Nanoparticles Platforms for the Detection and Discrimination of Native and Fibrillar Lysozyme: A Combined QCM and SERS Approach. NANOMATERIALS 2022; 12:nano12040600. [PMID: 35214929 PMCID: PMC8878839 DOI: 10.3390/nano12040600] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/26/2022] [Accepted: 02/06/2022] [Indexed: 11/17/2022]
Abstract
We propose a sensing platform based on graphene oxide/silver nanoparticles arrays (GO/AgNPs) for the detection and discrimination of the native and toxic fibrillar forms of an amyloid-prone protein, lysozyme, by means of a combination of Quartz Crystal Microbalance (QCM) and Surface Enhanced Raman Scattering (SERS) measurements. The GO/AgNPs layer system was obtained by Langmuir-Blodgett assembly of the silver nanoparticles followed by controlled adsorption of GO sheets on the AgNPs array. The adsorption of native and fibrillar lysozyme was followed by means of QCM, the measurements provided the kinetics and the mechanism of adsorption as a function of protein concentration as well as the mass and thickness of the adsorbed protein on both nanoplatforms. The morphology of the protein layer was characterized by Confocal Laser Scanning Microscopy experiments on Thioflavine T-stained samples. SERS experiments performed on arrays of bare AgNPs and of GO coated AgNP after native, or fibrillar, lysozyme adsorption allowed for the discrimination of the native form and toxic fibrillar structure of lysozyme. Results from combined QCM/SERS studies indicate a general construction paradigm for an efficient sensing platform with high selectivity and low detection limit for native and amyloid lysozyme.
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4
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Espeche Turbay MB, Rey V, Dorado RD, Sosa MC, Borsarelli CD. Silver nanoparticle-protein interactions and the role of lysozyme as an antagonistic antibacterial agent. Colloids Surf B Biointerfaces 2021; 208:112030. [PMID: 34419807 DOI: 10.1016/j.colsurfb.2021.112030] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/30/2021] [Accepted: 08/07/2021] [Indexed: 11/30/2022]
Abstract
The photoreductive synthesis and antibacterial activity of silver nanoparticles (AgNP) prepared in the presence of bovine serum albumin (BSA) and lysozyme (LZ) were evaluated. AgNP@BSA showed similar antibacterial activity to those stabilized with citrate (AgNP@CIT) and to an AgNO3 solution, suggesting the releases of Ag+ as the mechanism of death. In contrast, AgNP@LZ solutions showed no activity, although LZ behaves as a moderately antibacterial peptide. Furthermore, the addition of LZ to the AgNP@CIT or AgNP@BSA solutions induced their agglomeration and suppressed their original antibacterial efficacy. This antagonistic antibacterial effect exerted by LZ on AgNPs is associated with electrostatic interactions exerted by LZ. Specific metal-LZ interactions produce a harder protein corona on AgNP@LZ that retains Ag+, while LZ acts as a glue for AgNP@CIT or AgNP@LZ due to its opposite electrical charge, besides strong binding to Ag+avoiding the bactericide effect. Therefore, bactericidal effects of AgNP in biological media may be modulated by specific protein interactions.
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Affiliation(s)
- M Beatriz Espeche Turbay
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero (UNSE), RN9, km 1125, G4206XCP, Santiago del Estero, Argentina; ICQ - Facultad de Agronomía y Agroindustrias, UNSE, Av. Belgrano (S) 1912, Santiago del Estero, Argentina.
| | - Valentina Rey
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero (UNSE), RN9, km 1125, G4206XCP, Santiago del Estero, Argentina; ICQ - Facultad de Agronomía y Agroindustrias, UNSE, Av. Belgrano (S) 1912, Santiago del Estero, Argentina
| | - Rita D Dorado
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero (UNSE), RN9, km 1125, G4206XCP, Santiago del Estero, Argentina
| | - Marcelo C Sosa
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero (UNSE), RN9, km 1125, G4206XCP, Santiago del Estero, Argentina
| | - Claudio D Borsarelli
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero (UNSE), RN9, km 1125, G4206XCP, Santiago del Estero, Argentina; ICQ - Facultad de Agronomía y Agroindustrias, UNSE, Av. Belgrano (S) 1912, Santiago del Estero, Argentina.
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5
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Lee D, Hussain S, Yeo J, Pang Y. Adsorption of dipeptide L-alanyl-L-tryptophan on gold colloidal nanoparticles studied by surface-enhanced Raman spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 247:119064. [PMID: 33091739 DOI: 10.1016/j.saa.2020.119064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/08/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
Surface adsorption of a dipeptide L-alanyl-L-tryptophan (Ala-Trp) on gold nanoparticles reduced by citrate (CT) and borohydride (BH) ions was investigated by a surface-enhanced Raman scattering (SERS) technique. Two distinct SERS spectra of Ala-Trp depending on the types of gold nanoparticles were observed, and the vibrational assignments were based on the density functional theory simulations and the previous SERS results of Trp. Ala-Trp mainly adsorbs through the amine group on CT gold nanoparticles with a perpendicular orientation of the indole ring to the surface. In contrast, the adsorption occurs via the π electrons of the indole ring on the BH gold surfaces while maintaining a flat geometry of the indole ring to the surface. The amide I band of Ala-Trp was observed only with the CT gold colloids in acidic and neutral conditions where partial surface adsorption via the amide group is expected.
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Affiliation(s)
- Daedu Lee
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Shafqat Hussain
- Department of Physics and Photon Science, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Juhyun Yeo
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Yoonsoo Pang
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
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6
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Ren X, Yang L, Li Y, Cheshari EC, Li X. The integration of molecular imprinting and surface-enhanced Raman scattering for highly sensitive detection of lysozyme biomarker aided by density functional theory. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117764. [PMID: 31727516 DOI: 10.1016/j.saa.2019.117764] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is a powerful bioanalytical technique that opens opportunities for early disease diagnosis and treatment by detecting biomarkers. However, the low sensitivity, selectivity, and reproducibility in the bioanalytical SERS are the main obstacles for clinical use. Herein, we demonstrate a high sensitive and selective label-free lysozyme biomarker detection platform based on coupling of SERS with molecular imprinting technique. The hierarchical silver microspheres with dendritic structure are controllably fabricated by a wet-chemical self-assembly approach. Based on selection of surface-active regions by density functional theory (DFT) simulations, a thin MIPs film (thickness < 15 nm) is then grafted on Ag microsphere surface through surface imprinting. As a result, the final synthesized Ag@MIPs hybrid exhibits as low as 5 ng mL-1 detection limit for target lysozyme, and high selectivity and reproducibility. Intensive "hot spots" in Ag@MIPs confirmed by Raman mapping give rise to the high-performance SERS. Meanwhile, DFT calculations are employed to investigate the SERS spectra and assist the assignment for the characteristic peaks of lysozyme. We believe that the present study provides a reliable and high-sensitive protocol for label-free protein biomarkers detection.
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Affiliation(s)
- Xiaohui Ren
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Ling Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yuanchao Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Emily C Cheshari
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Chemistry and Biochemistry Department, School of Science and Applied Technology, Laikipia University, 20300-1100, Nyahururu, Kenya
| | - Xin Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
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7
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Zhang L, Lian W, Li P, Ma H, Han X, Zhao B, Chen Z. Crocein Orange G mediated detection and modulation of amyloid fibrillation revealed by surface-enhanced Raman spectroscopy. Biosens Bioelectron 2020; 148:111816. [PMID: 31678823 DOI: 10.1016/j.bios.2019.111816] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/08/2019] [Accepted: 10/23/2019] [Indexed: 01/03/2023]
Abstract
Protein fibrous aggregation is associated with many neurodegenerative diseases including Alzheimer's and Parkinson's diseases. To modulate the process, a number of fibrillation inhibitors have been reported, although their working mechanism remains vague, calling for new means to decipher their interaction. Herein, we identified and characterized a novel inhibitor called Crocein Orange G (COG), which inhibited the nucleation and impeded the protofibril formation, revealed by various experimental approaches as well as molecular docking. In particular, the surface-enhanced Raman spectroscopy (SERS) helps to identify the binding sites and illustrate the interaction mechanism and fibrillation process by using Ag IMNPs as SERS substrate for a label-free detection. Combining with molecular docking, the SERS-based approach provides structural information concerning protein-ligand interaction and protein fibrillation. This study suggests that SERS can be a powerful new means to study the interaction between inhibitors and amyloid proteins and can potentially be a common tool for amyloid research. Strikingly, the SERS signal of COG corresponds very well with the state of protein fibrillation, hinting its function as an amyloid SERS signal amplifier. Therefore, this study provides a new means to monitor and interfere amyloid fibrillation.
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Affiliation(s)
- Lixia Zhang
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China; State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China
| | - Wenhui Lian
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117, PR China
| | - Peng Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China
| | - Hao Ma
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China
| | - Xiaoxia Han
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China; State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China
| | - Bing Zhao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China
| | - Zhijun Chen
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China; State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, 130012, Changchun, PR China.
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8
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Tian KZ, Cao CC, Nie XM, Wang W, Han CQ. Sensitive and label-free detection of protein secondary structure by amide III spectral signals using surface-enhanced Raman spectroscopy. CHINESE J CHEM PHYS 2019. [DOI: 10.1063/1674-0068/cjcp1811267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kang-zhen Tian
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
| | - Chang-chun Cao
- The 95979 Army of Chinese People’s Liberation Army, Taian 271200, China
| | - Xin-ming Nie
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
| | - Wen Wang
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
| | - Cai-qin Han
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
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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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10
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Kim Y, Choudhry QN, Chatterjee N, Choi J. Immune and xenobiotic response crosstalk to chemical exposure by PA01 infection in the nematode Caenorhabditis elegans. CHEMOSPHERE 2018; 210:1082-1090. [PMID: 30208533 DOI: 10.1016/j.chemosphere.2018.07.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 07/05/2018] [Accepted: 07/06/2018] [Indexed: 06/08/2023]
Abstract
Most organisms simultaneously face various chemical and biological stresses in the environment. Herein, we investigated how pathogen infection modifies an organism's response to chemical exposure. To explore this phenomenon, we conducted a toxicity study combined with pathogen infection by using the nematode Caenorhabditis elegans, the pathogen Pseudomonas aeruginosa, and various environmental chemicals. C. elegans preinfected with PA01, when subsequently exposed to chemicals, became sensitized to the toxicity of nonylphenol (NP) and cadmium (Cd), whereas they became tolerant to the toxicity of silver nanoparticles (AgNPs); this led us to conduct a mechanistic study focusing on AgNP exposure. A gene expression profiling study revealed that most of the immune response genes activated by PA01 infection remained activated after subsequent exposure to AgNPs, thereby suggesting that the acquired tolerance of C. elegans to AgNP exposure may be due to boosted immunity resulting from PA01 preinfection. Further, a functional genetic analysis revealed that the immune response pathway (i.e., PMK-1/p38 MAPK) was involved in defense against AgNP exposure in PA01-preinfected C. elegans, thus suggesting immune and stress response crosstalk to xenobiotic exposure. This study will aid in the elucidation of how pathogen infection impacts the way the defense system responds to subsequent xenobiotic exposure.
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Affiliation(s)
- Youngho Kim
- School of Environmental Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul, 02504, Republic of Korea
| | - Qaisra Naheed Choudhry
- School of Environmental Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul, 02504, Republic of Korea
| | - Nivedita Chatterjee
- School of Environmental Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul, 02504, Republic of Korea
| | - Jinhee Choi
- School of Environmental Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul, 02504, Republic of Korea.
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Hernández-Rangel A, Silva-Bermudez P, España-Sánchez BL, Luna-Hernández E, Almaguer-Flores A, Ibarra C, Garcia-Perez VI, Velasquillo C, Luna-Barcenas G. Fabrication and in vitro behavior of dual-function chitosan/silver nanocomposites for potential wound dressing applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:750-765. [PMID: 30423761 DOI: 10.1016/j.msec.2018.10.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 08/07/2018] [Accepted: 10/02/2018] [Indexed: 12/14/2022]
Abstract
We report the synthesis and in vitro evaluation of dual-function chitosan-silver nanoparticles (CTS-AgNPs) films with potential applications as wound dressings. We attempted to formulate nanocomposite films with appropriate AgNPs concentrations to simultaneously display antibacterial activity and suitability for cell culture. Nanocomposites were obtained by CTS-mediated in situ chemical reduction of AgNO3. Circular-shape AgNPs (sizes ca. 7-50 nm) well distributed within the CTS matrices were obtained in concentrations from 0.018 to 0.573 wt%. Efficacy (bacteriostatic and bactericidal properties) of CTS-AgNPs films to decrease planktonic and biofilm bacterial growth was AgNPs concentration- and bacteria strain-dependent. Films showed significant antibacterial activity against Gram-negative E. coli and P. aeruginosa and Gram-positive S. aureus. Antibacterial activity against S. epidermidis was moderated. Films suitability for cell culture was characterized using primary human fibroblasts (HF). HF displayed cell viability higher than 90% and the characteristic fusiform morphology of adhered fibroblast upon culture on films with AgNPs concentration ≤ 0.036 wt%. HF cultured on these films also showed positive expression of tropoelastin, procollagen type I and Ki-67, characteristic proteins of extracellular matrix and proliferative cells, respectively. In vitro assays demonstrated that cytocompatibility/antibacterial properties decreased/increased as silver concentration increased, suggesting that CTS-AgNPS nanocomposite films with ≈0.04-0.20 wt% might be considered as potential temporary dual-function wound dressings.
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Affiliation(s)
- A Hernández-Rangel
- Departamento de Polímeros y Biopolímeros, CINVESTAV Unidad Querétaro, C.P. 73230 Querétaro, Mexico; Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, C.P. 14389 CDMX, Mexico
| | - P Silva-Bermudez
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, C.P. 14389 CDMX, Mexico
| | - B L España-Sánchez
- CONACYT-Centro de Investigación y Desarrollo Tecnológico en Electroquímica SC, Parque Tecnológico Querétaro S/N, Sanfandila, Pedro Escobedo Querétaro CP 76703, México
| | - E Luna-Hernández
- Departamento de Polímeros y Biopolímeros, CINVESTAV Unidad Querétaro, C.P. 73230 Querétaro, Mexico
| | - A Almaguer-Flores
- División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, C.P. 04510 CDMX, Mexico
| | - C Ibarra
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, C.P. 14389 CDMX, Mexico
| | - V I Garcia-Perez
- División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, C.P. 04510 CDMX, Mexico
| | - C Velasquillo
- Unidad de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, C.P. 14389 CDMX, Mexico.
| | - G Luna-Barcenas
- Departamento de Polímeros y Biopolímeros, CINVESTAV Unidad Querétaro, C.P. 73230 Querétaro, Mexico.
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12
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Dhanasekaran M, Dhathathreyan A. Initiating fibro-proliferation through interfacial interactions of myoglobin colloids with collagen in solution. Int J Biol Macromol 2017; 101:117-125. [DOI: 10.1016/j.ijbiomac.2017.03.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/02/2017] [Accepted: 03/14/2017] [Indexed: 10/19/2022]
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13
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Semenova AA, Semenov AP, Gudilina EA, Sinyukova GT, Brazhe NA, Maksimov GV, Goodilin EA. Nanostructured silver materials for noninvasive medical diagnostics by surface-enhanced Raman spectroscopy. MENDELEEV COMMUNICATIONS 2016. [DOI: 10.1016/j.mencom.2016.04.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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14
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Durán M, Silveira CP, Durán N. Catalytic role of traditional enzymes for biosynthesis of biogenic metallic nanoparticles: a mini-review. IET Nanobiotechnol 2016; 9:314-23. [PMID: 26435286 DOI: 10.1049/iet-nbt.2014.0054] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Although the formation mechanism of biogenically metallic nanoparticles is broadly associated to enzyme mediation, major attention has been given to the role of proteins and peptides in oxido-reduction of metallic ions leading to these nanostructures. Among the wide range of biomolecules that can act not only as capping agents but also as non-enzymatic agents to form nanoparticles, disulphide bridge-containing peptides and amino acids particularly stand out. The literature proposes that they actively participate in the process of nanoparticles' synthesis, with thiols groups and disulphide bridge moieties as the reaction catalytic sites. Similarly, denaturated enzymes containing exposed S-S or S-H moieties are also able to reduce metallic ions to form nanoparticles. This mini-review is focused on the biogenic synthesis of metallic nanoparticles such as gold, silver, copper, platinum, palladium, lead and selenium, in which proteins, peptides, reductases and even oxido-reductases act as non-enzymatic catalysts of the reduction reaction, opening economically and ecologically favourable perspectives in the nanoparticles synthesis field.
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Affiliation(s)
- Marcela Durán
- Laboratory on Nanostructures Synthesis and Interactions with Biosystems (NanoBioss) Institute of Chemistry, Universidade Estadual de Campinas, Bloco I, Sala 239, Caixa Postal 6154, CEP 13081-970 Campinas, SP, Brazil
| | - Camila P Silveira
- Laboratory on Nanostructures Synthesis and Interactions with Biosystems (NanoBioss) Institute of Chemistry, Universidade Estadual de Campinas, Bloco I, Sala 239, Caixa Postal 6154, CEP 13081-970 Campinas, SP, Brazil
| | - Nelson Durán
- Laboratory on Nanostructures Synthesis and Interactions with Biosystems (NanoBioss) Institute of Chemistry, Universidade Estadual de Campinas, Bloco I, Sala 239, Caixa Postal 6154, CEP 13081-970 Campinas, SP, Brazil.
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15
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Siddhanta S, Barman I, Narayana C. Revealing the trehalose mediated inhibition of protein aggregation through lysozyme-silver nanoparticle interaction. SOFT MATTER 2015; 11:7241-7249. [PMID: 26271458 DOI: 10.1039/c5sm01896j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We propose a facile and robust carbohydrate-mediated method for the prevention of nanoparticle induced denaturation and aggregation of proteins. Using label-free plasmon-enhanced Raman spectroscopy measurements, the mechanistic principles of trehalose stabilization in a model protein-nanoparticle system are elucidated for the first time, facilitating its further application in diagnostic and therapeutic nanoplex development.
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Affiliation(s)
- Soumik Siddhanta
- Light Scattering Laboratory, Chemistry & Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560 064, India.
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16
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Brazhe NA, Evlyukhin AB, Goodilin EA, Semenova AA, Novikov SM, Bozhevolnyi SI, Chichkov BN, Sarycheva AS, Baizhumanov AA, Nikelshparg EI, Deev LI, Maksimov EG, Maksimov GV, Sosnovtseva O. Probing cytochrome c in living mitochondria with surface-enhanced Raman spectroscopy. Sci Rep 2015; 5:13793. [PMID: 26346634 PMCID: PMC4561893 DOI: 10.1038/srep13793] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 08/03/2015] [Indexed: 11/29/2022] Open
Abstract
Selective study of the electron transport chain components in living mitochondria is essential for fundamental biophysical research and for the development of new medical diagnostic methods. However, many important details of inter- and intramembrane mitochondrial processes have remained in shadow due to the lack of non-invasive techniques. Here we suggest a novel label-free approach based on the surface-enhanced Raman spectroscopy (SERS) to monitor the redox state and conformation of cytochrome c in the electron transport chain in living mitochondria. We demonstrate that SERS spectra of living mitochondria placed on hierarchically structured silver-ring substrates provide exclusive information about cytochrome c behavior under modulation of inner mitochondrial membrane potential, proton gradient and the activity of ATP-synthetase. Mathematical simulation explains the observed enhancement of Raman scattering due to high concentration of electric near-field and large contact area between mitochondria and nanostructured surfaces.
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Affiliation(s)
- Nadezda A. Brazhe
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
- Department of Biomedical Sciences, Faculty of Medical and Health Sciences, Copenhagen University, Blegdamsvej 3, Copenhagen, DK-2200, Denmark
| | - Andrey B. Evlyukhin
- Laser Zentrum Hannover e. V., Hollerihallee 8, D-30419 Hannover, Germany
- Department of Technology and Innovation, University of Southern Denmark, Odense M, DK-5230 Denmark
| | - Eugene A. Goodilin
- Department of Nanomaterials, Faculty of Material Sciences, Moscow State University, Moscow, Leninskie gory 1/73, 119991, Russia
- Department of Inorganic chemistry, Faculty of Chemistry, Moscow State University, Moscow, Leninskie gory 1/3, 119991, Russia
- Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Moscow, Leninskiy prospekt, 119992, Russia
| | - Anna A. Semenova
- Department of Nanomaterials, Faculty of Material Sciences, Moscow State University, Moscow, Leninskie gory 1/73, 119991, Russia
| | - Sergey M. Novikov
- Department of Technology and Innovation, University of Southern Denmark, Odense M, DK-5230 Denmark
| | - Sergey I. Bozhevolnyi
- Department of Technology and Innovation, University of Southern Denmark, Odense M, DK-5230 Denmark
| | - Boris N. Chichkov
- Laser Zentrum Hannover e. V., Hollerihallee 8, D-30419 Hannover, Germany
| | - Asya S. Sarycheva
- Department of Nanomaterials, Faculty of Material Sciences, Moscow State University, Moscow, Leninskie gory 1/73, 119991, Russia
| | - Adil A. Baizhumanov
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Evelina I. Nikelshparg
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Leonid I. Deev
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Eugene G. Maksimov
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Georgy V. Maksimov
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Olga Sosnovtseva
- Department of Biomedical Sciences, Faculty of Medical and Health Sciences, Copenhagen University, Blegdamsvej 3, Copenhagen, DK-2200, Denmark
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17
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Evidence of two oxidation states of copper during aggregation of hen egg white lysozyme (HEWL). Int J Biol Macromol 2015; 76:1-9. [DOI: 10.1016/j.ijbiomac.2015.02.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 02/13/2015] [Accepted: 02/13/2015] [Indexed: 11/18/2022]
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18
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Experimental characterization of adsorbed protein orientation, conformation, and bioactivity. Biointerphases 2015; 10:019002. [PMID: 25708632 DOI: 10.1116/1.4906485] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Protein adsorption on material surfaces is a common phenomenon that is of critical importance in many biotechnological applications. The structure and function of adsorbed proteins are tightly interrelated and play a key role in the communication and interaction of the adsorbed proteins with the surrounding environment. Because the bioactive state of a protein on a surface is a function of the orientation, conformation, and accessibility of its bioactive site(s), the isolated determination of just one or two of these factors will typically not be sufficient to understand the structure-function relationships of the adsorbed layer. Rather a combination of methods is needed to address each of these factors in a synergistic manner to provide a complementary dataset to characterize and understand the bioactive state of adsorbed protein. Over the past several years, the authors have focused on the development of such a set of complementary methods to address this need. These methods include adsorbed-state circular dichroism spectropolarimetry to determine adsorption-induced changes in protein secondary structure, amino-acid labeling/mass spectrometry to assess adsorbed protein orientation and tertiary structure by monitoring adsorption-induced changes in residue solvent accessibility, and bioactivity assays to assess adsorption-induced changes in protein bioactivity. In this paper, the authors describe the methods that they have developed and/or adapted for each of these assays. The authors then provide an example of their application to characterize how adsorption-induced changes in protein structure influence the enzymatic activity of hen egg-white lysozyme on fused silica glass, high density polyethylene, and poly(methyl-methacrylate) as a set of model systems.
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19
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Sharma A, Ghosh KS, Singh BP, Gathania AK. Spectroscopic investigation of interaction between bovine gamma globulin and gold nanoparticles. Methods Appl Fluoresc 2015; 3:025002. [PMID: 29148483 DOI: 10.1088/2050-6120/3/2/025002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The interaction of Citrate-capped gold nanoparticles (AuNPs) with Bovine gamma globulin (BGG) was studied using Fourier transform infrared (FTIR), UV-Visible and Fluorescence spectroscopy. FTIR has confirmed the conjugation of AuNPs and BGG. Fluorescence quenching of tryptophan has confirmed the strong interaction between BGG and AuNPs. UV-Visible and Fluorescence spectroscopy have investigated the extent of interaction by determining the binding constants. Binding constants evaluated from UV-Visible and Fluorescence data are in good agreement with each other. An independent class of binding site on BGG for AuNPs has been predicted, where AuNPs interact with a highly solvent accessible tryptophan residue.
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Affiliation(s)
- Ankita Sharma
- Department of Physics, National Institute of Technology, Hamirpur 177 005, India
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20
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Kong KV, Leong WK, Lam Z, Gong T, Goh D, Lau WKO, Olivo M. A rapid and label-free SERS detection method for biomarkers in clinical biofluids. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:5030-5034. [PMID: 25111592 DOI: 10.1002/smll.201401713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 07/16/2014] [Indexed: 06/03/2023]
Abstract
A metal carbonyl-functionalized nanostructured substrate can be used in a rapid and simple assay for the detection of A1AT, a potential biomarker for bladder cancer, in clinical urine samples. The assay involves monitoring changes in the carbonyl stretching vibrations of the metal carbonyl via surface-enhanced Raman spectroscopy (SERS). These vibrations lie in the absorption spectral window of 1800-2200 cm(-1), which is free of any spectral interference from biomolecules.
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Affiliation(s)
- Kien Voon Kong
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 138667, Singapore
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21
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Ghosh S, Pandey NK, Bhattacharya S, Roy A, Dasgupta S. Fibrillation of hen egg white lysozyme triggers reduction of copper(II). Int J Biol Macromol 2012; 51:1-6. [DOI: 10.1016/j.ijbiomac.2012.04.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 04/12/2012] [Accepted: 04/25/2012] [Indexed: 10/28/2022]
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22
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Chandra GK, Tripathy DR, Dasgupta S, Roy A. Interaction of (-)-epigallocatechin gallate with lysozyme-conjugated silver nanoparticles. APPLIED SPECTROSCOPY 2012; 66:744-749. [PMID: 22710368 DOI: 10.1366/11.06533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The interaction of lysozyme (Lyz)-conjugated silver (Ag) nanoparticles with (-)-epigallocatechin gallate (EGCG), one of the major components of green tea, has been investigated. Interaction of a protein with ligand/drug molecules perturbs the conformation of secondary and tertiary structures of the protein. We have demonstrated the conformational changes in the tertiary structures of the Lyz molecules on EGCG binding using surface-enhanced Raman scattering (SERS) and circular dichroism (CD) spectroscopic measurements. From the analysis of the amide I band of Lyz in SERS and CD spectra, the site of interaction of EGCG with protein molecules in Lyz-conjugated Ag particles has been identified. Spectroscopic evidence for the conformational response of Trp62 and Trp63, in the β-domain of the protein, to the binding of EGCG has been discussed.
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23
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Cukalevski R, Lundqvist M, Oslakovic C, Dahlbäck B, Linse S, Cedervall T. Structural changes in apolipoproteins bound to nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:14360-14369. [PMID: 21978381 DOI: 10.1021/la203290a] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nanoparticles are widely used in the pharmaceutical and food industries, but the consequences of exposure to the human body have not been thoroughly investigated. Apolipoprotein A-I (apoAI), the major protein in high-density lipoprotein (HDL), and other lipoproteins are found in the corona around many nanoparticles, but data on protein structural and functional effects are lacking. Here we investigate the structural consequences of the adsorption of apoAI, apolipoprotein B100 (apoB100), and HDL on polystyrene nanoparticles with different surface charges. The results of circular dichroism, fluorescence spectroscopy, and limited proteolysis experiments indicate effects on both secondary and tertiary structures. Plain and negatively charged nanoparticles induce helical structure in apoAI (negative net charge) whereas positively charged nanoparticles reduce the amount of helical structure. Plain and negatively charged particles induce a small blue shift in the tryptophan fluorescence spectrum, which is not noticed with the positively charged particles. Similar results are observed with reconstituted HDL. In apoB100, both secondary and tertiary structures are perturbed by all particles. To investigate the generality of the role of surface charge, parallel experiments were performed using human serum albumin (HSA, negative net charge) and lysozyme (positive net charge). Again, the secondary structure is most affected by nanoparticles carrying an opposite surface charge relative to the protein. Nanoparticles carrying the same net charge as the protein induce only minor structural changes in lysozyme whereas a moderate change is observed for HSA. Thus, surface charge is a critical parameter for predicting structural changes in adsorbed proteins, yet the effect is specific for each protein.
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Affiliation(s)
- Risto Cukalevski
- Biochemistry and Structural Biology, Lund University, Lund, Sweden.
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24
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Panzner MJ, Bilinovich SM, Youngs WJ, Leeper TC. Silver metallation of hen egg white lysozyme: X-ray crystal structure and NMR studies. Chem Commun (Camb) 2011; 47:12479-81. [PMID: 22042312 DOI: 10.1039/c1cc15908a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The X-ray crystal structure, NMR binding studies, and enzyme activity of silver(I) metallated hen egg white lysozyme are presented. Primary bonding of silver is observed through His15 with secondary bonding interactions coming from nearby Arg14 and Asp87. A covalently bound nitrate completes a four coordinate binding pocket.
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Affiliation(s)
- Matthew J Panzner
- Center for Silver Therapeutics Research, Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
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25
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Sanfins E, Dairou J, Rodrigues-Lima F, Dupret JM. Nanoparticle-protein interactions: from crucial plasma proteins to key enzymes. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/304/1/012039] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Sanfins E, Dairou J, Hussain S, Busi F, Chaffotte AF, Rodrigues-Lima F, Dupret JM. Carbon black nanoparticles impair acetylation of aromatic amine carcinogens through inactivation of arylamine N-acetyltransferase enzymes. ACS NANO 2011; 5:4504-11. [PMID: 21526848 DOI: 10.1021/nn103534d] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Carbon black nanoparticles (CB NPs) and their respirable aggregates/agglomerates are classified as possibly carcinogenic to humans. In certain industrial work settings, CB NPs coexist with aromatic amines (AA), which comprise a major class of human carcinogens. It is therefore crucial to characterize the interactions of CB NPs with AA-metabolizing enzymes. Here, we report molecular and cellular evidence that CB NPs interfere with the enzymatic acetylation of carcinogenic AA by rapidly binding to arylamine N-acetyltransferase (NAT), the major AA-metabolizing enzyme. Kinetic and biophysical analyses showed that this interaction leads to protein conformational changes and an irreversible loss of enzyme activity. In addition, our data showed that exposure to CB NPs altered the acetylation of 2-aminofluorene in intact lung Clara cells by impairing the endogenous NAT-dependent pathway. This process may represent an additional mechanism that contributes to the carcinogenicity of inhaled CB NPs. Our results add to recent data suggesting that major xenobiotic detoxification pathways may be altered by certain NPs and that this can result in potentially harmful pharmacological and toxicological effects.
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Affiliation(s)
- Elodie Sanfins
- Univ Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative, CNRS EAC4413, 75013, Paris, France
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27
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Angel LA. Study of metal ion labeling of the conformational and charge states of lysozyme by ion mobility mass spectrometry. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2011; 17:207-215. [PMID: 21828412 DOI: 10.1255/ejms.1133] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The efficiency of Zn(2+), Cu(2+), Ni(2+), Co(2+), Fe(2+) or Mn(2+) labeling of the conformational and charge states of lysozyme was studied in H(2)O solvent at pH 2.5-6.8. Labeling of lysozyme was conducted with 50 M, 100 M and 500 M excess of the metal ion, resulting in the number of metal ions attached to lysozyme increasing two-fold over this range. At pH 6.2-6.8, Zn(2+), Cu(2+), Ni(2+), Co(2+) and Mn(2+) labeled the highly folded 7+ conformer and the 8+ and 9+ partially unfolded conformers of lysozyme with the same number of metal ion tags, with only Fe(2+) exhibiting no labeling. Lysozyme conserved its charge after metal ion labeling which shows at each charge state the divalent metal ion is replacing two protons. As the pH is lowered to 4.7-5.0 and 2.5-2.9, the labeling of lysozyme by Zn(2+), Cu(2+), Ni(2+), Co(2+) or Mn(2+) decreased in efficiency due to increased competition from protons for the aspartate and glutamate binding sites. The metal ions preferentially labeled the highly folded 7+ and partially unfolded 8+ conformers, but labeling decreased as the charge of lysozyme increased. In contrast to the other metal ions, Fe(2+) exhibited labeling of lysozyme only at the lowest pH of 2.8. At higher pH, the oxidation of Fe(2+) and formation of hydroxy-bridged complexes probably make the Fe(2+) unreactive towards lysozyme.
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Affiliation(s)
- Laurence A Angel
- Texas A&M University-Commerce, Department of Chemistry, PO Box 3011, Commerce, TX 75429-3011, USA.
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