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Breausche FE, Somerlot A, Walder J, Osei K, Okyem S, Driskell JD. Immobilization of Thiol-Modified Horseradish Peroxidase on Gold Nanoparticles Enhances Enzyme Stability and Prevents Proteolytic Digestion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38919992 DOI: 10.1021/acs.langmuir.4c01180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
The specificity and efficiency of enzyme-mediated reactions have the potential to positively impact many biotechnologies; however, many enzymes are easily degraded. Immobilization on a solid support has recently been explored to improve enzyme stability. This study aims to gain insights and facilitate enzyme adsorption onto gold nanoparticles (AuNPs) to form a stable bioconjugate through the installation of thiol functional groups that alter the protein chemistry. In specific, the model enzyme, horseradish peroxidase (HRP), is thiolated via Traut's reagent to increase the robustness and enzymatic activity of the bioconjugate. This study compares HRP and its thiolated analog (THRP) to deduce the impact of thiolation and AuNP-immobilization on the enzyme activity and stability. HRP, THRP, and their corresponding bioconjugates, HRP-AuNP and THRP-AuNP, were analyzed via UV-vis spectrophotometry, circular dichroism, zeta potential, and enzyme-substrate kinetics assays. Our data show a 5-fold greater adsorption for THRP on the AuNP, in comparison to HRP, that translated to a 5-fold increase in the THRP-AuNP bioconjugate activity. The thiolated and immobilized HRP exhibited a substantial improvement in stability at elevated temperatures (50 °C) and storage times (1 month) relative to the native enzyme in solution. Moreover, HRP, THRP, and their bioconjugates were incubated with trypsin to assess the susceptibility to proteolytic digestion. Our results demonstrate that THRP-AuNP bioconjugates maintain full enzymatic activity after 18 h of incubation with trypsin, whereas free HRP, free THRP, and HRP-AuNP conjugates are rendered inactive by trypsin treatment. These results highlight the potential for protein modification and immobilization to substantially extend enzyme shelf life, resist protease digestion, and enhance biological function to realize enzyme-enabled biotechnologies.
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Affiliation(s)
- Faith E Breausche
- Department of Chemistry, Illinois State University, Normal, Illinois 61790, United States
| | - Annelise Somerlot
- Department of Chemistry, Illinois State University, Normal, Illinois 61790, United States
| | - Jason Walder
- Department of Chemistry, Illinois State University, Normal, Illinois 61790, United States
| | - Kwame Osei
- Department of Chemistry, Illinois State University, Normal, Illinois 61790, United States
| | - Samuel Okyem
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Jeremy D Driskell
- Department of Chemistry, Illinois State University, Normal, Illinois 61790, United States
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Tapia-Arellano A, Cabrera P, Cortés-Adasme E, Riveros A, Hassan N, Kogan MJ. Tau- and α-synuclein-targeted gold nanoparticles: applications, opportunities, and future outlooks in the diagnosis and therapy of neurodegenerative diseases. J Nanobiotechnology 2024; 22:248. [PMID: 38741193 DOI: 10.1186/s12951-024-02526-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 05/02/2024] [Indexed: 05/16/2024] Open
Abstract
The use of nanomaterials in medicine offers multiple opportunities to address neurodegenerative disorders such as Alzheimer's and Parkinson's disease. These diseases are a significant burden for society and the health system, affecting millions of people worldwide without sensitive and selective diagnostic methodologies or effective treatments to stop their progression. In this sense, the use of gold nanoparticles is a promising tool due to their unique properties at the nanometric level. They can be functionalized with specific molecules to selectively target pathological proteins such as Tau and α-synuclein for Alzheimer's and Parkinson's disease, respectively. Additionally, these proteins are used as diagnostic biomarkers, wherein gold nanoparticles play a key role in enhancing their signal, even at the low concentrations present in biological samples such as blood or cerebrospinal fluid, thus enabling an early and accurate diagnosis. On the other hand, gold nanoparticles act as drug delivery platforms, bringing therapeutic agents directly into the brain, improving treatment efficiency and precision, and reducing side effects in healthy tissues. However, despite the exciting potential of gold nanoparticles, it is crucial to address the challenges and issues associated with their use in the medical field before they can be widely applied in clinical settings. It is critical to ensure the safety and biocompatibility of these nanomaterials in the context of the central nervous system. Therefore, rigorous preclinical and clinical studies are needed to assess the efficacy and feasibility of these strategies in patients. Since there is scarce and sometimes contradictory literature about their use in this context, the main aim of this review is to discuss and analyze the current state-of-the-art of gold nanoparticles in relation to delivery, diagnosis, and therapy for Alzheimer's and Parkinson's disease, as well as recent research about their use in preclinical, clinical, and emerging research areas.
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Affiliation(s)
- Andreas Tapia-Arellano
- Instituto Universitario de Investigación y Desarrollo Tecnológico (IDT), Universidad Tecnológica Metropolitana, Santiago, Chile.
- Facultad de Cs. Qcas. y Farmacéuticas, Universidad de Chile, Santiago, Chile.
- Advanced Center for Chronic Diseases (ACCDis), Santiago, Chile.
- Millenium Nucleus in NanoBioPhysics, Valparaíso, Chile.
| | - Pablo Cabrera
- Facultad de Cs. Qcas. y Farmacéuticas, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDis), Santiago, Chile
| | - Elizabeth Cortés-Adasme
- Facultad de Cs. Qcas. y Farmacéuticas, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDis), Santiago, Chile
| | - Ana Riveros
- Facultad de Cs. Qcas. y Farmacéuticas, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDis), Santiago, Chile
| | - Natalia Hassan
- Instituto Universitario de Investigación y Desarrollo Tecnológico (IDT), Universidad Tecnológica Metropolitana, Santiago, Chile.
- Advanced Center for Chronic Diseases (ACCDis), Santiago, Chile.
- Millenium Nucleus in NanoBioPhysics, Valparaíso, Chile.
| | - Marcelo J Kogan
- Facultad de Cs. Qcas. y Farmacéuticas, Universidad de Chile, Santiago, Chile.
- Advanced Center for Chronic Diseases (ACCDis), Santiago, Chile.
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Ashraf SS, Hosseinpour Sarmadi V, Larijani G, Naderi Garahgheshlagh S, Ramezani S, Moghadamifar S, Mohebi SL, Brouki Milan P, Haramshahi SMA, Ahmadirad N, Amini N. Regenerative medicine improve neurodegenerative diseases. Cell Tissue Bank 2023; 24:639-650. [PMID: 36527565 DOI: 10.1007/s10561-022-10062-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 12/04/2022] [Indexed: 12/23/2022]
Abstract
Regenerative medicine is a subdivision of medicine that improves methods to regrow, repair or replace unhealthy cells and tissues to return to normal function. Cell therapy, gene therapy, nanomedicine as choices used to cure neurodegenerative disease. Recently, studies related to the treatment of neurodegenerative disorders have been focused on stem cell therapy and Nano-drugs beyond other than regenerative medicine. Hence, by data from experimental models and clinical trials, we review the impact of stem cell therapy, gene therapy, and nanomedicine on the treatment of Alzheimer's disease (AD), Parkinson's disease (PD), and Amyotrophic lateral sclerosis (ALS). Indeed, improved knowledge and continued research on gene therapy and nanomedicine in treating Alzheimer's disease, Parkinson's disease, and Amyotrophic lateral sclerosis lead to advancements in effective and practical treatments for neurodegenerative diseases.
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Affiliation(s)
- Seyedeh Sara Ashraf
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Institutes of Regenerative Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Vahid Hosseinpour Sarmadi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Institutes of Regenerative Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ghazaleh Larijani
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Soheila Naderi Garahgheshlagh
- Burn Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Plastic and Reconstructive surgery, Hazrat Fatemeh Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Sara Ramezani
- Neuroscience Research Center, Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Guilan, Iran
- Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Soraya Moghadamifar
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Seyedeh Lena Mohebi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Institutes of Regenerative Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Peiman Brouki Milan
- Institutes of Regenerative Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Amin Haramshahi
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Plastic and Reconstructive surgery, Hazrat Fatemeh Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nooshin Ahmadirad
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Naser Amini
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.
- Institutes of Regenerative Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Maity A, Mondal A, Kundu S, Shome G, Misra R, Singh A, Pal U, Mandal AK, Bera K, Maiti NC. Naringenin-Functionalized Gold Nanoparticles and Their Role in α-Synuclein Stabilization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:7231-7248. [PMID: 37094111 DOI: 10.1021/acs.langmuir.2c03259] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Misfolding and self-assembly of several intrinsically disordered proteins into ordered β-sheet-rich amyloid aggregates emerged as hallmarks of several neurodegenerative disorders such as Alzheimer's and Parkinson's diseases. Here we show how the naringenin-embedded nanostructure effectively retards aggregation and fibril formation of α-synuclein, which is strongly associated with the pathology of Parkinson's-like diseases. Naringenin is a polyphenolic compound from a plant source, and in our current investigation, we reported the one-pot synthesis of naringenin-coated spherical and monophasic gold nanoparticles (NAR-AuNPs) under optimized conditions. The average hydrodynamic diameter of the produced nanoparticle was ∼24 nm and showed a distinct absorption band at 533 nm. The zeta potential of the nanocomposite was ∼-22 mV and indicated the presence of naringenin on the surface of nanoparticles. Core-level XPS spectrum analysis showed prominent peaks at 84.02 and 87.68 eV, suggesting the zero oxidation state of metal in the nanostructure. Additionally, the peaks at 86.14 and 89.76 eV were due to the Au-O bond, induced by the hydroxyl groups of the naringenin molecule. The FT-IR analysis further confirmed strong interactions of the molecule with the gold nanosurface via the phenolic oxygen group. The composite surface was found to interact with monomeric α-synuclein and caused a red shift in the nanoparticle absorption band by ∼5 nm. The binding affinity of the composite nanostructure toward α-synuclein was in the micromolar range (Ka∼ 5.02 × 106 M-1) and may produce a protein corona over the gold nanosurface. A circular dichroism study showed that the nanocomposite can arrest the conformational fluctuation of the protein and hindered its transformation into a compact cross-β-sheet conformation, a prerequisite for amyloid fibril formation. Furthermore, it was found that naringenin and its nanocomplex did not perturb the viability of neuronal cells. It thus appeared that engineering of the nanosurface with naringenin could be an alternative strategy in developing treatment approaches for Parkinson's and other diseases linked to protein conformation.
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Affiliation(s)
- Anupam Maity
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre, (CSIR-HRDC) Campus, Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
| | - Animesh Mondal
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Shubham Kundu
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Gourav Shome
- Division of Molecular Medicine, Bose Institute, Kolkata 700091, India
| | - Rajdip Misra
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Aakriti Singh
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Uttam Pal
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Atin Kumar Mandal
- Division of Molecular Medicine, Bose Institute, Kolkata 700091, India
| | - Kaushik Bera
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
- Department of Chemistry, The Heritage School, 994 Chowbaga Road, Anandapur, East Kolkata Twp, Kolkata 700107, India
| | - Nakul C Maiti
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre, (CSIR-HRDC) Campus, Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
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5
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Riley MB, Strandquist E, Weitzel CS, Driskell JD. Structure and activity of native and thiolated α-chymotrypsin adsorbed onto gold nanoparticles. Colloids Surf B Biointerfaces 2022; 220:112867. [PMID: 36182820 DOI: 10.1016/j.colsurfb.2022.112867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/16/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022]
Abstract
A detailed understanding of protein-nanoparticle interactions is critical to realize the full potential of bioconjugate-enabled technologies. Parameters that lead to conformational changes in protein structure upon adsorption must be identified and controlled to mitigate loss of biological function. We hypothesized that the installation of thiol functional groups on a protein will facilitate robust adsorption to gold nanoparticles (AuNPs) and prevent protein unfolding to achieve thermodynamic stability. Here we investigated the adsorption behavior of α-chymotrypsin (ChT) and a thiolated analog of α-chymotrypsin (T-ChT) with AuNPs. ChT, which does not present any free thiols, was modified with 2-iminothiolane (Traut's reagent) to synthesize T-ChT consisting of two free thiols. Protein adsorption to AuNPs was monitored with dynamic light scattering and UV-vis spectrophotometry, and fluorescence spectra were acquired to assess changes in protein structure induced by interaction with the AuNP. The biological function of ChT, T-ChT, and respective bioconjugates were compared using a colorimetric enzymatic assay. The thiolated analog exhibited a greater affinity for the AuNP than the unmodified ChT, as determined from adsorption isotherms. The ChT protein formed a soft protein corona in which the enzyme denatures with prolonged exposure to AuNPs and, subsequently, lost enzymatic function. Conversely, the T-ChT formed a robust hard corona on the AuNP and retained structure and function. These data support the hypothesis, provide further insight into protein-AuNP interactions, and identify a simple chemical approach to synthesize robust and functional conjugates.
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Affiliation(s)
- McKenzie B Riley
- Department of Chemistry, Illinois State University, Normal, IL 61790, United States
| | - Evan Strandquist
- Department of Chemistry, Illinois State University, Normal, IL 61790, United States
| | | | - Jeremy D Driskell
- Department of Chemistry, Illinois State University, Normal, IL 61790, United States.
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6
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Environmentally Toxic Solid Nanoparticles in Noradrenergic and Dopaminergic Nuclei and Cerebellum of Metropolitan Mexico City Children and Young Adults with Neural Quadruple Misfolded Protein Pathologies and High Exposures to Nano Particulate Matter. TOXICS 2022; 10:toxics10040164. [PMID: 35448425 PMCID: PMC9028025 DOI: 10.3390/toxics10040164] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/17/2022] [Accepted: 03/22/2022] [Indexed: 11/17/2022]
Abstract
Quadruple aberrant hyperphosphorylated tau, beta-amyloid, α-synuclein and TDP-43 neuropathology and metal solid nanoparticles (NPs) are documented in the brains of children and young adults exposed to Metropolitan Mexico City (MMC) pollution. We investigated environmental NPs reaching noradrenergic and dopaminergic nuclei and the cerebellum and their associated ultrastructural alterations. Here, we identify NPs in the locus coeruleus (LC), substantia nigrae (SN) and cerebellum by transmission electron microscopy (TEM) and energy-dispersive X-ray spectrometry (EDX) in 197 samples from 179 MMC residents, aged 25.9 ± 9.2 years and seven older adults aged 63 ± 14.5 years. Fe, Ti, Hg, W, Al and Zn spherical and acicular NPs were identified in the SN, LC and cerebellar neural and vascular mitochondria, endoplasmic reticulum, Golgi, neuromelanin, heterochromatin and nuclear pore complexes (NPCs) along with early and progressive neurovascular damage and cerebellar endothelial erythrophagocytosis. Strikingly, FeNPs 4 ± 1 nm and Hg NPs 8 ± 2 nm were seen predominantly in the LC and SN. Nanoparticles could serve as a common denominator for misfolded proteins and could play a role in altering and obstructing NPCs. The NPs/carbon monoxide correlation is potentially useful for evaluating early neurodegeneration risk in urbanites. Early life NP exposures pose high risk to brains for development of lethal neurologic outcomes. NP emissions sources ought to be clearly recognized, regulated, and monitored; future generations are at stake.
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Fleming A, Cursi L, Behan JA, Yan Y, Xie Z, Adumeau L, Dawson KA. Designing Functional Bionanoconstructs for Effective In Vivo Targeting. Bioconjug Chem 2022; 33:429-443. [PMID: 35167255 PMCID: PMC8931723 DOI: 10.1021/acs.bioconjchem.1c00546] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
![]()
The progress achieved
over the last three decades in the field
of bioconjugation has enabled the preparation of sophisticated nanomaterial–biomolecule
conjugates, referred to herein as bionanoconstructs, for a multitude
of applications including biosensing, diagnostics, and therapeutics.
However, the development of bionanoconstructs for the active targeting
of cells and cellular compartments, both in vitro and in vivo, is challenged by the lack of understanding
of the mechanisms governing nanoscale recognition. In this review,
we highlight fundamental obstacles in designing a successful bionanoconstruct,
considering findings in the field of bionanointeractions. We argue
that the biological recognition of bionanoconstructs is modulated
not only by their molecular composition but also by the collective
architecture presented upon their surface, and we discuss fundamental
aspects of this surface architecture that are central to successful
recognition, such as the mode of biomolecule conjugation and nanomaterial
passivation. We also emphasize the need for thorough characterization
of engineered bionanoconstructs and highlight the significance of
population heterogeneity, which too presents a significant challenge
in the interpretation of in vitro and in
vivo results. Consideration of such issues together will
better define the arena in which bioconjugation, in the future, will
deliver functional and clinically relevant bionanoconstructs.
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Affiliation(s)
- Aisling Fleming
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Lorenzo Cursi
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - James A Behan
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Yan Yan
- UCD Conway Institute of Biomolecular and Biomedical Research, School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Zengchun Xie
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Laurent Adumeau
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Kenneth A Dawson
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
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Singh A, Maharana SK, Shukla R, Kesharwani P. Nanotherapeutics approaches for targeting alpha synuclien protein in the management of Parkinson disease. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.08.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Martínez-Negro M, González-Rubio G, Aicart E, Landfester K, Guerrero-Martínez A, Junquera E. Insights into colloidal nanoparticle-protein corona interactions for nanomedicine applications. Adv Colloid Interface Sci 2021; 289:102366. [PMID: 33540289 DOI: 10.1016/j.cis.2021.102366] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 12/17/2022]
Abstract
Colloidal nanoparticles (NPs) have attracted significant attention due to their unique physicochemical properties suitable for diagnosing and treating different human diseases. Nevertheless, the successful implementation of NPs in medicine demands a proper understanding of their interactions with the different proteins found in biological fluids. Once introduced into the body, NPs are covered by a protein corona (PC) that determines the biological behavior of the NPs. The formation of the PC can eventually favor the rapid clearance of the NPs from the body before fulfilling the desired objective or lead to increased cytotoxicity. The PC nature varies as a function of the different repulsive and attractive forces that govern the NP-protein interaction and their colloidal stability. This review focuses on the phenomenon of PC formation on NPs from a physicochemical perspective, aiming to provide a general overview of this critical process. Main issues related to NP toxicity and clearance from the body as a result of protein adsorption are covered, including the most promising strategies to control PC formation and, thereby, ensure the successful application of NPs in nanomedicine.
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D’Onofrio M, Munari F, Assfalg M. Alpha-Synuclein-Nanoparticle Interactions: Understanding, Controlling and Exploiting Conformational Plasticity. Molecules 2020; 25:E5625. [PMID: 33260436 PMCID: PMC7731430 DOI: 10.3390/molecules25235625] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/25/2020] [Accepted: 11/27/2020] [Indexed: 12/29/2022] Open
Abstract
Alpha-synuclein (αS) is an extensively studied protein due to its involvement in a group of neurodegenerative disorders, including Parkinson's disease, and its documented ability to undergo aberrant self-aggregation resulting in the formation of amyloid-like fibrils. In dilute solution, the protein is intrinsically disordered but can adopt multiple alternative conformations under given conditions, such as upon adsorption to nanoscale surfaces. The study of αS-nanoparticle interactions allows us to better understand the behavior of the protein and provides the basis for developing systems capable of mitigating the formation of toxic aggregates as well as for designing hybrid nanomaterials with novel functionalities for applications in various research areas. In this review, we summarize current progress on αS-nanoparticle interactions with an emphasis on the conformational plasticity of the biomolecule.
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Affiliation(s)
| | | | - Michael Assfalg
- Department of Biotechnology, University of Verona, 37134 Verona, Italy; (M.D.); (F.M.)
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11
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Alimohammadi E, Khedri M, Miri Jahromi A, Maleki R, Rezaian M. Graphene-Based Nanoparticles as Potential Treatment Options for Parkinson's Disease: A Molecular Dynamics Study. Int J Nanomedicine 2020; 15:6887-6903. [PMID: 32982240 PMCID: PMC7509323 DOI: 10.2147/ijn.s265140] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 09/08/2020] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION The study of abnormal aggregation of proteins in different tissues of the body has recently earned great attention from researchers in various fields of science. Concerning neurological diseases, for instance, the accumulation of amyloid fibrils can contribute to Parkinson's disease, a progressively severe neurodegenerative disorder. The most prominent features of this disease are the degeneration of neurons in the substantia nigra and accumulation of α-synuclein aggregates, especially in the brainstem, spinal cord, and cortical areas. Dopamine replacement therapies and other medications have reduced motor impairment and had positive consequences on patients' quality of life. However, if these medications are stopped, symptoms of the disease will recur even more severely. Therefore, the improvement of therapies targeting more basic mechanisms like prevention of amyloid formation seems to be critical. It has been shown that the interactions between monolayers like graphene and amyloids could prevent their fibrillation. METHODS For the first time, the impact of four types of last-generation graphene-based nanostructures on the prevention of α-synuclein amyloid fibrillation was investigated in this study by using molecular dynamics simulation tools. RESULTS Although all monolayers were shown to prevent amyloid fibrillation, nitrogen-doped graphene (N-Graphene) caused the most instability in the secondary structure of α-synuclein amyloids. Moreover, among the four monolayers, N-Graphene was shown to present the highest absolute value of interaction energy, the lowest contact level of amyloid particles, the highest number of hydrogen bonds between water and amyloid molecules, the highest instability caused in α-synuclein particles, and the most significant decrease in the compactness of α-synuclein protein. DISCUSSION Ultimately, it was concluded that N-Graphene could be the most effective monolayer to disrupt amyloid fibrillation, and consequently, prevent the progression of Parkinson's disease.
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Affiliation(s)
- Ehsan Alimohammadi
- Neurosurgery Department, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Khedri
- Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran1591634311, Iran
| | - Ahmad Miri Jahromi
- Department of Petroleum Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran1591634311, Iran
| | - Reza Maleki
- Department of Chemical Engineering, Sharif University of Technology, Tehran, Iran
| | - Milad Rezaian
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran19839-63113, Iran
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McClain SM, Ojoawo AM, Lin W, Rienstra CM, Murphy CJ. Interaction of Alpha-Synuclein and Its Mutants with Rigid Lipid Vesicle Mimics of Varying Surface Curvature. ACS NANO 2020; 14:10153-10167. [PMID: 32672441 DOI: 10.1021/acsnano.0c03420] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Abnormal aggregation of alpha-synuclein (α-syn), an intrinsically disordered neuronal protein, is strongly implicated in the development of Parkinson's disease. Efforts to better understand α-syn's native function and its pathogenic role in neurodegeneration have revealed that the protein interacts with anionic lipid vesicles via adoption of an amphipathic α-helical structure; however, the ability of α-syn to remodel lipid membranes has made it difficult to decipher the role of vesicle surface curvature in protein binding behavior. In this study, sodium dodecyl sulfate (SDS)-coated gold nanoparticles (AuNPs), which mimic bilayer vesicle architecture, were synthesized in order to conduct a systematic investigation into the binding interaction of α-syn and two of its mutants (A30P and E46K) with rigid lipid vesicle mimics of defined surface curvature. By incorporating a rigid AuNP core (∼10-100 nm), the ability of α-syn to remodel the vesicle mimics was removed and their surface curvature could be fixed. Proteomics studies showed that, upon binding of free α-syn to the surface of SDS-AuNPs, the N-terminus of α-syn became less solvent accessible, whereas its C-terminus became more accessible. Interestingly, α-syn's non-amyloid-β component (NAC) region also exhibited increased solvent accessibility, suggesting that α-syn bound to rigid vesicle-like structures could possess heightened aggregation propensity and therefore pathogenicity. Additionally, both the A30P and E46K mutations were found to adopt distinct binding modes on the mimics' surface. In contrast with previous reports, similar binding affinities were observed for WT, A30P, and E46K α-syn toward SDS-AuNPs of all sizes, indicating the potential importance of vesicle deformability in determining α-syn binding behavior.
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Affiliation(s)
- Sophia M McClain
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Adedolapo M Ojoawo
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Wayne Lin
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Chad M Rienstra
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Carle-Illinois College of Medicine, University of Illinois at Urbana-Champaign, Champaign, Illinois 61820, United States
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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13
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Tira R, De Cecco E, Rigamonti V, Santambrogio C, Barracchia CG, Munari F, Romeo A, Legname G, Prosperi D, Grandori R, Assfalg M. Dynamic molecular exchange and conformational transitions of alpha-synuclein at the nano-bio interface. Int J Biol Macromol 2020; 154:206-216. [DOI: 10.1016/j.ijbiomac.2020.03.118] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/11/2020] [Accepted: 03/13/2020] [Indexed: 10/24/2022]
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14
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Rabiei M, Kashanian S, Samavati SS, Jamasb S, McInnes SJ. Active Targeting Towards and Inside the Brain based on Nanoparticles: A Review. Curr Pharm Biotechnol 2020; 21:374-383. [DOI: 10.2174/1389201020666191203094057] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 11/08/2019] [Accepted: 11/22/2019] [Indexed: 11/22/2022]
Abstract
Background:
Treatment of neurological diseases using systemic and non-surgical techniques
presents a significant challenge in medicine. This challenge is chiefly associated with the condensation
and coherence of the brain tissue.
Methods:
The coherence structure of the brain is due to the presence of the blood-brain barrier (BBB),
which consists of a continuous layer of capillary endothelial cells. The BBB prevents most drugs from
entering the brain tissue and is highly selective, permitting only metabolic substances and nutrients to
pass through.
Results:
Although this challenge has caused difficulties for the treatment of neurological diseases, it
has opened up a broad research area in the field of drug delivery. Through the utilization of nanoparticles
(NPs), nanotechnology can provide the ideal condition for passing through the BBB.
Conclusion:
NPs with suitable dimensions and optimum hydrophobicity and charge, as well as appropriate
functionalization, can accumulate in the brain. Furthermore, NPs can facilitate the targeted delivery
of therapeutics into the brain areas involved in Alzheimer’s disease, Parkinson’s disease, stroke,
glioma, migraine, and other neurological disorders. This review describes these methods of actively
targeting specific areas of the brain.
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Affiliation(s)
- Morteza Rabiei
- Department of Nanobiotechnology, Razi University, Kermanshah, Iran
| | | | | | - Shahriar Jamasb
- Department of Biomedical Engineering, Hamedan University of Technology, Hamedan, 65169-13733, Iran
| | - Steven J.P. McInnes
- University of South Australia, Division of Information Technology, Engineering and the Environment, Mawson Lakes, Mawson Lakes 5095, Australia
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15
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Duan Y, Liu Y, Coreas R, Zhong W. Mapping Molecular Structure of Protein Locating on Nanoparticles with Limited Proteolysis. Anal Chem 2019; 91:4204-4212. [PMID: 30798594 PMCID: PMC6613589 DOI: 10.1021/acs.analchem.9b00482] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The molecular structure of a protein could be altered when it is attached to nanoparticles (NPs), affecting the performance of NPs present in biological systems. Limited proteolysis coupled with LC-MS/MS could reveal the changes in protein structure when it binds to a variety of entities, including macro-molecules and small drugs, but it has not yet been applied to study protein-NP interaction. Herein, adsorption of proteins, transferrin, and catalase on the polystyrene (PS) or iron oxide (IO) NPs was analyzed with this method. Both increased and decreased proteolytic efficiency in certain regions on the proteins were observed. Identification of the peptides affected by protein-NP interaction led to proper prediction of alterations to protein function as well as to colloidal stability of NPs. Overall, the present work has demonstrated the utility of limited proteolysis in helping to elucidate the potential biological outcomes of the protein-NP conjugate, obtaining knowledge to guide improvement of the rational design of the protein-conjugated NPs for biomedical applications and to understand the biological behaviors of the engineered NPs.
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Affiliation(s)
- Yaokai Duan
- Department of Chemistry, University of California, Riverside, California 92507, United States
| | - Yang Liu
- Environmental Toxicology Graduate Program, University of California, Riverside, California 92507, United States
| | - Roxana Coreas
- Environmental Toxicology Graduate Program, University of California, Riverside, California 92507, United States
| | - Wenwan Zhong
- Department of Chemistry, University of California, Riverside, California 92507, United States
- Environmental Toxicology Graduate Program, University of California, Riverside, California 92507, United States
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16
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Zhang X, Pandiakumar AK, Hamers RJ, Murphy CJ. Quantification of Lipid Corona Formation on Colloidal Nanoparticles from Lipid Vesicles. Anal Chem 2018; 90:14387-14394. [PMID: 30427176 DOI: 10.1021/acs.analchem.8b03911] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Formation of a protein corona around nanoparticles when immersed into biological fluids is well-known; less studied is the formation of lipid coronas around nanoparticles. In many cases, the identity of a nanoparticle-acquired corona determines nanoparticle fate within a biological system and its interactions with cells and organisms. This work systematically explores the impact of nanoparticle surface chemistry and lipid character on the formation of lipid coronas for 3 different nanoparticle surface chemistries (2 cationic, 1 anionic) on 14 nm gold nanoparticles exposed to a series of lipid vesicles of 4 different compositions. Qualitative (plasmon band shifting, ζ-potential analysis, dynamic light scattering on the part of the nanoparticles) and quantitative (lipid liquid chromatography/mass spectrometry) methods are developed with a "pull-down" scheme to assess the degree of lipid corona formation in these systems. In general, cationic nanoparticles extract 60-95% of the lipids available in vesicles under the described experimental conditions, while anionic nanoparticles extract almost none. While electrostatics apparently dominate the lipid-nanoparticle interactions, primary amine polymer surfaces extract more lipids than quaternary ammonium surfaces. Free cationic species can act as lipid-binding competitors in solution.
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Affiliation(s)
- Xi Zhang
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 S. Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Arun Kumar Pandiakumar
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Robert J Hamers
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Catherine J Murphy
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 S. Mathews Avenue , Urbana , Illinois 61801 , United States
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17
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Yang L, Wang N, Zheng G. Enhanced Effect of Combining Chlorogenic Acid on Selenium Nanoparticles in Inhibiting Amyloid β Aggregation and Reactive Oxygen Species Formation In Vitro. NANOSCALE RESEARCH LETTERS 2018; 13:303. [PMID: 30269259 PMCID: PMC6163123 DOI: 10.1186/s11671-018-2720-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 09/14/2018] [Indexed: 05/25/2023]
Abstract
The deposition of amyloid-β (Aβ) plaques and formation of neurotoxic reactive oxygen species (ROS) is a significant pathological signature of Alzheimer's disease (AD). Herein, a novel strategy is reported for combining the unique Aβ absorption property of selenium nanoparticles with the natural antioxidant agent chlorogenic acid (CGA) to form CGA@SeNPs. The in vitro biological evaluation revealed that CGA could clear the ROS induced by Aβ40 aggregates, but it did not inhibit the Aβ40 aggregation and cell membrane damage which were also caused by Aβ40 aggregates. Interestingly, CGA@SeNPs show an enhanced inhibition effect on Aβ40 aggregation and, more importantly, protect PC12 cells from Aβ aggregation-induced cell death. It is believed that CGA@SeNPs are more efficient than CGA in reducing Aβ40 toxic in long-term use.
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Affiliation(s)
- Licong Yang
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045 China
| | - Na Wang
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045 China
| | - Guodong Zheng
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045 China
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18
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Conformational properties of intrinsically disordered proteins bound to the surface of silica nanoparticles. Biochim Biophys Acta Gen Subj 2018; 1862:1556-1564. [DOI: 10.1016/j.bbagen.2018.03.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 03/12/2018] [Accepted: 03/28/2018] [Indexed: 01/02/2023]
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19
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Phan HTM, Bartz JC, Ayers J, Giasson BI, Schubert M, Rodenhausen KB, Kananizadeh N, Li Y, Bartelt-Hunt SL. Adsorption and decontamination of α-synuclein from medically and environmentally-relevant surfaces. Colloids Surf B Biointerfaces 2018; 166:98-107. [PMID: 29550546 PMCID: PMC5911191 DOI: 10.1016/j.colsurfb.2018.03.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 02/28/2018] [Accepted: 03/08/2018] [Indexed: 11/20/2022]
Abstract
The assembly and accumulation of α-synuclein fibrils are implicated in the development of several neurodegenerative disorders including multiple system atrophy and Parkinson's disease. Pre-existing α-synuclein fibrils can recruit and convert soluble non-fibrillar α-synuclein to the fibrillar form similar to what is observed in prion diseases. This raises concerns regarding attachment of fibrillary α-synuclein to medical instruments and subsequent exposure of patients to α-synuclein similar to what has been observed in iatrogenic transmission of prions. Here, we evaluated adsorption and desorption of α-synuclein to two surfaces: stainless steel and a gold surface coated with a 11-Amino-1-undecanethiol hydrochloride self-assembled-monolayer (SAM) using in-situ combinatorial quartz crystal microbalance with dissipation and spectroscopic ellipsometry. α-Synuclein was found to attach to both surfaces, however, increased α-synuclein adsorption was observed onto the positively charged SAM surface compared to the stainless steel surface. Dynamic light scattering data showed that larger α-synuclein fibrils were preferentially attached to the stainless steel surface when compared with the distributions in the original α-synuclein solution and on the SAM surface. We determined that after attachment, introduction of a 1N NaOH solution could completely remove α-synuclein adsorbed on the stainless steel surface while α-synuclein was retained on the SAM surface. Our results indicate α-synuclein can bind to multiple surface types and that decontamination is surface-dependent.
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Affiliation(s)
- Hanh T M Phan
- Department of Civil Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States
| | - Jason C Bartz
- Department of Medical Microbiology and Immunology, Creighton University, United States
| | - Jacob Ayers
- Department of Neuroscience, University of Florida, United States
| | - Benoit I Giasson
- Department of Neuroscience, University of Florida, United States
| | - Mathias Schubert
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States
| | - Keith B Rodenhausen
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States; Biolin Scientific, Inc., Paramus, NJ, United States
| | - Negin Kananizadeh
- Department of Civil Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States
| | - Yusong Li
- Department of Civil Engineering, University of Nebraska-Lincoln, United States
| | - Shannon L Bartelt-Hunt
- Department of Civil Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States.
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20
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Pradhan N, Debnath K, Mandal S, Jana NR, Jana NR. Antiamyloidogenic Chemical/Biochemical-Based Designed Nanoparticle as Artificial Chaperone for Efficient Inhibition of Protein Aggregation. Biomacromolecules 2018; 19:1721-1731. [DOI: 10.1021/acs.biomac.8b00671] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Nibedita Pradhan
- Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Koushik Debnath
- Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Suman Mandal
- Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Nihar R. Jana
- Cellular and Molecular Neuroscience Laboratory, National Brain Research Centre, Manesar, Gurgaon 122051, India
| | - Nikhil R. Jana
- Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata 700032, India
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21
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Mohammadi S, Nikkhah M, Hosseinkhani S. Investigation of the effects of carbon-based nanomaterials on A53T alpha-synuclein aggregation using a whole-cell recombinant biosensor. Int J Nanomedicine 2017; 12:8831-8840. [PMID: 29276384 PMCID: PMC5734227 DOI: 10.2147/ijn.s144764] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The aggregation of alpha-synuclein (αS), natively unstructured presynaptic protein, is a crucial factor leading to the pathogenesis of Parkinson’s disease (PD) and other related disorders. Recent studies have shown prefibrillar and oligomeric intermediates of αS as toxic to the cells. Herein, split-luciferase complementation assay is used to design a “signal-on” biosensor to monitor oligomerization of A53T αS inside the cells. Then, the effect of carbon-based nanomaterials, such as graphene quantum dots (GQDs) and graphene oxide quantum dots (GOQDs), on A53T αS oligomerization in vitro and in living cells is investigated. In this work, for the first time, it was found that GQDs at a concentration of 0.5 μg/mL can promote A53T αS aggregation by shortening the nucleation process, which is the key rate-determining step of fibrillation, thereby making a signal-on biosensor. While these nanomaterials may cross the blood–brain barrier because of their small sizes, the interaction between αS and GQDs may contribute to PD etiology.
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Affiliation(s)
| | | | - Saman Hosseinkhani
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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22
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Mohammadi S, Nikkhah M. TiO2 Nanoparticles as Potential Promoting Agents of Fibrillation of α-Synuclein, a Parkinson's Disease-Related Protein. IRANIAN JOURNAL OF BIOTECHNOLOGY 2017; 15:87-94. [PMID: 29845055 DOI: 10.15171/ijb.1519] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 09/11/2016] [Accepted: 06/20/2017] [Indexed: 01/19/2023]
Abstract
Background: In recent years, nanomaterials have been widely used in large quantities which make people be more frequently exposed to the chemically synthesized nanoparticles (NPs). When NPs are introduced into an organism, they may interact with a variety of cellular components with yet largely unknown pathological consequences. Objective: It was found that NPs enhance the rate of protein fibrillation in the brain by decreasing the lag time for nucleation. Protein fibrillation is implicated in the pathogenesis of the several neurodegenerative diseases such as Parkinson's disease (PD). α-Synuclein (αS) is natively an unfolded protein which is involved in the pathogenesis of PD. In the present study, we have analyzed the effects of three different NPs on αS fibrillation. Materials and Methods: αS protein expression and purifi cation was done and fibrils formation was induced in the absence or presence of the three types of NPs (i. e., TiO2, SiO2, and SnO2). The enhancement of the fluorescence emission of Thiofl avin T (ThT) and transmission electron microscopy (TEM) were used to monitor the appearance and growth of the fibrils. The adsorption of αS monomers on the surface of NPs was investigated by tyrosine fluorescence emission measurements. Results: We found that TiO2-NPs enhances αS fibril formation even at a concentration of 5 μg.mL-1, while the two other NPs show no significant effect on the kinetics of the fibrillation. Intrinsic tyrosine emission measurement has confirmed that the TiO2-NPs interact with αS fibrillation products. It is suggested that TiO2- NPs may enhance the nucleation of αS protein that leads to protein fibril formation. Conclusion: The fibrillization process of αS protein is profoundly affected by the presence of TiO2-NPs. This finding unveils the neurotoxicity potential of the TiO2-NPs, which may be considered as a probable risk for PD.
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Affiliation(s)
- Soheila Mohammadi
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, 14115-175 Iran
| | - Maryam Nikkhah
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, 14115-175 Iran
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23
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Dennison JM, Zupancic JM, Lin W, Dwyer JH, Murphy CJ. Protein Adsorption to Charged Gold Nanospheres as a Function of Protein Deformability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7751-7761. [PMID: 28704605 DOI: 10.1021/acs.langmuir.7b01909] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The corona that forms as protein adsorbs to gold nanospheres (AuNSs) is directly influenced by the surface chemistry of the AuNS. Tools to predict adsorption outcomes are needed for intelligent design of nanomaterials for biological applications. We hypothesized that the denaturation behavior of a protein might be a useful predictor of adsorption behavior to AuNSs, and used this idea to study protein adsorption to anionic citrate-capped AuNSs and to cationic poly(allylamine hydrochloride) (PAH) wrapped AuNSs. Three proteins (α-amylase (A-Amy), β-lactoglobulin (BLG), and bovine serum albumin (BSA)), representing three different classes of acid denaturation behavior, were selected with BLG being the least deformable and BSA being the most deformable. Protein adsorption to AuNSs was monitored via UV-vis spectrophotometry and dynamic light scattering. Changes to the protein structure upon AuNS interaction were monitored via circular dichroism spectroscopy. Binding constants were determined using the Langmuir adsorption isotherm, resulting in BSA > BLG ≫ A-Amy affinities for citrate-capped gold nanospheres. PAH-coated AuNSs displayed little affinity for these proteins at similar concentrations as citrate-coated AuNSs and became agglomerated at high protein concentrations. The enzymatic activity of A-Amy/citrate AuNS conjugates was measured via colorimetric assay, and found to be 11% of free A-Amy, suggesting that binding restricts access to the active site. Across both citrate AuNSs and PAH AuNSs, the changes in secondary structure were greatest for BSA > A-Amy > BLG, which does follow the trends predicted by acid denaturation characteristics.
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Affiliation(s)
- Jordan M Dennison
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 Mathews Avenue, Urbana, Illinois 61801, United States
| | - Jennifer M Zupancic
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 Mathews Avenue, Urbana, Illinois 61801, United States
| | - Wayne Lin
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 Mathews Avenue, Urbana, Illinois 61801, United States
| | - Jonathan H Dwyer
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 Mathews Avenue, Urbana, Illinois 61801, United States
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 Mathews Avenue, Urbana, Illinois 61801, United States
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24
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Xiong N, Zhao Y, Dong X, Zheng J, Sun Y. Design of a Molecular Hybrid of Dual Peptide Inhibitors Coupled on AuNPs for Enhanced Inhibition of Amyloid β-Protein Aggregation and Cytotoxicity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1601666. [PMID: 28112856 DOI: 10.1002/smll.201601666] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 12/07/2016] [Indexed: 05/28/2023]
Abstract
Aggregation of amyloid-β protein (Aβ) is a pathological hallmark of Alzheimer's disease (AD), so the inhibition of Aβ aggregation is an important strategy for the prevention and treatment of AD. Herein, we proposed to design molecular hybrids of peptide inhibitors by combining two peptide inhibitors, VVIA and LPFFD, into single sequences and examined their effects on Aβ42 aggregation and cytotoxicity. The hybrid peptides exhibit increased but moderate inhibitory activity as compared to their two precursors. By conjugating the peptides onto gold nanoparticles (AuNPs), however, the inhibition activity of the corresponding peptide@AuNPs against Aβ42 aggregation and cytotoxicity is greatly improved. Among them, VVIACLPFFD (VCD10)@AuNP is the most effective, which increases cell viability from 48% to 82% at a dosage as low as 0.1 nmol L-1 (NPs) or 40 nmol L-1 (peptide). The superior capacity of VCD10@AuNPs is considered due to its branched dual-inhibitor sequence, and its special surface orientation and conformation. These structural features promote its synergetic interactions with Aβ on AuNP surface, leading to strong inhibitions of Aβ oligomerization and fibrillation and the cytotoxicity caused by the aggregation species. The findings suggest that potent inhibitors can be derived by hybridization of multiple peptide inhibitors with the hybrid products coupled onto nanoparticles.
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Affiliation(s)
- Neng Xiong
- Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Yanjiao Zhao
- Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Xiaoyan Dong
- Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Jie Zheng
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH, 44325, USA
| | - Yan Sun
- Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
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25
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Yang L, Sun J, Xie W, Liu Y, Liu J. Dual-functional selenium nanoparticles bind to and inhibit amyloid β fiber formation in Alzheimer's disease. J Mater Chem B 2017; 5:5954-5967. [DOI: 10.1039/c6tb02952c] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
LPFFD/TGN modified SeNPs could cross the BBB and selectively bind to Aβ species. This binding might disrupted Aβ40nucleation, and finally decrease Aβ40fibrillation and their corresponding neurotoxicity in PC12 cells.
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Affiliation(s)
- Licong Yang
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Jing Sun
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Wenjie Xie
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Yanan Liu
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Jie Liu
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
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26
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Inhibition of lysozyme fibrillation by human serum albumin nanoparticles: Possible mechanism. Int J Biol Macromol 2016; 93:1328-1336. [DOI: 10.1016/j.ijbiomac.2016.09.108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 09/18/2016] [Accepted: 09/30/2016] [Indexed: 12/20/2022]
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27
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Das S, Carnicer-Lombarte A, Fawcett JW, Bora U. Bio-inspired nano tools for neuroscience. Prog Neurobiol 2016; 142:1-22. [PMID: 27107796 DOI: 10.1016/j.pneurobio.2016.04.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 04/14/2016] [Accepted: 04/15/2016] [Indexed: 01/19/2023]
Abstract
Research and treatment in the nervous system is challenged by many physiological barriers posing a major hurdle for neurologists. The CNS is protected by a formidable blood brain barrier (BBB) which limits surgical, therapeutic and diagnostic interventions. The hostile environment created by reactive astrocytes in the CNS along with the limited regeneration capacity of the PNS makes functional recovery after tissue damage difficult and inefficient. Nanomaterials have the unique ability to interface with neural tissue in the nano-scale and are capable of influencing the function of a single neuron. The ability of nanoparticles to transcend the BBB through surface modifications has been exploited in various neuro-imaging techniques and for targeted drug delivery. The tunable topography of nanofibers provides accurate spatio-temporal guidance to regenerating axons. This review is an attempt to comprehend the progress in understanding the obstacles posed by the complex physiology of the nervous system and the innovations in design and fabrication of advanced nanomaterials drawing inspiration from natural phenomenon. We also discuss the development of nanomaterials for use in Neuro-diagnostics, Neuro-therapy and the fabrication of advanced nano-devices for use in opto-electronic and ultrasensitive electrophysiological applications. The energy efficient and parallel computing ability of the human brain has inspired the design of advanced nanotechnology based computational systems. However, extensive use of nanomaterials in neuroscience also raises serious toxicity issues as well as ethical concerns regarding nano implants in the brain. In conclusion we summarize these challenges and provide an insight into the huge potential of nanotechnology platforms in neuroscience.
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Affiliation(s)
- Suradip Das
- Bioengineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Alejandro Carnicer-Lombarte
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Robinson Way, Cambridge CB2 0PY, United Kingdom
| | - James W Fawcett
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Robinson Way, Cambridge CB2 0PY, United Kingdom
| | - Utpal Bora
- Bioengineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India; Mugagen Laboratories Private Limited, Technology Incubation Complex, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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28
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Mohammad-Beigi H, Morshedi D, Shojaosadati SA, Pedersen JN, Marvian AT, Aliakbari F, Christiansen G, Pedersen JS, Otzen DE. Gallic acid loaded onto polyethylenimine-coated human serum albumin nanoparticles (PEI-HSA-GA NPs) stabilizes α-synuclein in the unfolded conformation and inhibits aggregation. RSC Adv 2016. [DOI: 10.1039/c6ra08502d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aggregation of the 140-residue protein α-synuclein (αSN) plays a major role in the pathogenesis of different neurodegenerative disorders such as Parkinson's Disease (PD).
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Affiliation(s)
- Hossein Mohammad-Beigi
- Interdisciplinary Nanoscience Centre (iNANO)
- Aarhus University
- DK – 8000 Aarhus C
- Denmark
- Biotechnology Group
| | - Dina Morshedi
- Department of Industrial and Environmental Biotechnology
- National Institute of Genetic Engineering and Biotechnology
- Tehran
- Iran
| | | | | | - Amir Tayaranian Marvian
- Department of Biomedicine-Medical Microbiology and Immunology
- Aarhus University
- 8000 Aarhus C
- Denmark
| | - Farhang Aliakbari
- Department of Industrial and Environmental Biotechnology
- National Institute of Genetic Engineering and Biotechnology
- Tehran
- Iran
- Student Research Committee and Department of Medical Biotechnology
| | - Gunna Christiansen
- Department of Biomedicine-Medical Microbiology and Immunology
- Aarhus University
- 8000 Aarhus C
- Denmark
| | - Jan Skov Pedersen
- Interdisciplinary Nanoscience Centre (iNANO)
- Aarhus University
- DK – 8000 Aarhus C
- Denmark
- Department of Chemistry
| | - Daniel E. Otzen
- Interdisciplinary Nanoscience Centre (iNANO)
- Aarhus University
- DK – 8000 Aarhus C
- Denmark
- Department of Molecular Biology and Genetics
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29
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Gunay MS, Ozer AY, Chalon S. Drug Delivery Systems for Imaging and Therapy of Parkinson's Disease. Curr Neuropharmacol 2016; 14:376-91. [PMID: 26714584 PMCID: PMC4876593 DOI: 10.2174/1570159x14666151230124904] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 12/03/2015] [Accepted: 12/29/2015] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Although a variety of therapeutic approaches are available for the treatment of Parkinson's disease, challenges limit effective therapy. Among these challenges are delivery of drugs through the blood brain barier to the target brain tissue and the side effects observed during long term administration of antiparkinsonian drugs. The use of drug delivery systems such as liposomes, niosomes, micelles, nanoparticles, nanocapsules, gold nanoparticles, microspheres, microcapsules, nanobubbles, microbubbles and dendrimers is being investigated for diagnosis and therapy. METHODS This review focuses on formulation, development and advantages of nanosized drug delivery systems which can penetrate the central nervous system for the therapy and/or diagnosis of PD, and highlights future nanotechnological approaches. RESULTS It is esential to deliver a sufficient amount of either therapeutic or radiocontrast agents to the brain in order to provide the best possible efficacy or imaging without undesired degradation of the agent. Current treatments focus on motor symptoms, but these treatments generally do not deal with modifying the course of Parkinson's disease. Beyond pharmacological therapy, the identification of abnormal proteins such as α -synuclein, parkin or leucine-rich repeat serine/threonine protein kinase 2 could represent promising alternative targets for molecular imaging and therapy of Parkinson's disease. CONCLUSION Nanotechnology and nanosized drug delivery systems are being investigated intensely and could have potential effect for Parkinson's disease. The improvement of drug delivery systems could dramatically enhance the effectiveness of Parkinson's Disease therapy and reduce its side effects.
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Affiliation(s)
| | - A Yekta Ozer
- Department of Radiopharmacy, Faculty of Pharmacy, Hacettepe University, 06100, Sihhiye, Ankara, Turkey.
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30
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Mohammad-Beigi H, Shojaosadati SA, Marvian AT, Pedersen JN, Klausen LH, Christiansen G, Pedersen JS, Dong M, Morshedi D, Otzen DE. Strong interactions with polyethylenimine-coated human serum albumin nanoparticles (PEI-HSA NPs) alter α-synuclein conformation and aggregation kinetics. NANOSCALE 2015; 7:19627-19640. [PMID: 26549058 DOI: 10.1039/c5nr05663b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The interaction between nanoparticles (NPs) and the small intrinsically disordered protein α-synuclein (αSN), whose aggregation is central in the development of Parkinson's disease, is of great relevance in biomedical applications of NPs as drug carriers. Here we showed using a combination of different techniques that αSN interacts strongly with positively charged polyethylenimine-coated human serum albumin (PEI-HSA) NPs, leading to a significant alteration in the αSN secondary structure. In contrast, the weak interactions of αSN with HSA NPs allowed αSN to remain unfolded. These different levels of interactions had different effects on αSN aggregation. While the weakly interacting HSA NPs did not alter the aggregation kinetic parameters of αSN, the rate of primary nucleation increased in the presence of PEI-HSA NPs. The aggregation rate changed in a PEI-HSA NP-concentration dependent and size independent manner and led to fibrils which were covered with small aggregates. Furthermore, PEI-HSA NPs reduced the level of membrane-perturbing oligomers and reduced oligomer toxicity in cell assays, highlighting a potential role for NPs in reducing αSN pathogenicity in vivo. Collectively, our results highlight the fact that a simple modification of NPs can strongly modulate interactions with target proteins, which may have important and positive implications in NP safety.
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Affiliation(s)
- Hossein Mohammad-Beigi
- Interdisciplinary Nanoscience Centre (iNANO) and Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 14, DK - 8000 Aarhus C, Denmark. and Biotechnology Group, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran, Iran
| | - Seyed Abbas Shojaosadati
- Biotechnology Group, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran, Iran
| | | | - Jannik Nedergaard Pedersen
- Interdisciplinary Nanoscience Centre (iNANO) and Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 14, DK - 8000 Aarhus C, Denmark.
| | - Lasse Hyldgaard Klausen
- Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Gustav Wieds Vej 14, DK - 8000 Aarhus C, Denmark
| | - Gunna Christiansen
- Department of Biomedicine-Medical Microbiology and Immunology, Aarhus University, 8000 Aarhus C, Denmark
| | - Jan Skov Pedersen
- Interdisciplinary Nanoscience Centre (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, DK - 8000 Aarhus C, Denmark
| | - Mingdong Dong
- Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Gustav Wieds Vej 14, DK - 8000 Aarhus C, Denmark
| | - Dina Morshedi
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology, P.O. Box: 1417863171, Tehran, Iran.
| | - Daniel E Otzen
- Interdisciplinary Nanoscience Centre (iNANO) and Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 14, DK - 8000 Aarhus C, Denmark.
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Sanpui P, Paul A, Chattopadhyay A. Theranostic potential of gold nanoparticle-protein agglomerates. NANOSCALE 2015; 7:18411-18423. [PMID: 26508277 DOI: 10.1039/c5nr05805h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Owing to the ever-increasing applications, glittered with astonishing success of gold nanoparticles (Au NPs) in biomedical research as diagnostic and therapeutic agents, the study of Au NP-protein interaction seems critical for maximizing their theranostic efficiency, and thus demands comprehensive understanding. The mutual interaction of Au NPs and proteins at physiological conditions may result in the aggregation of protein, which can ultimately lead to the formation of Au NP-protein agglomerates. In the present article, we try to appreciate the plausible steps involved in the Au NP-induced aggregation of proteins and also the importance of the proteins' three-dimensional structures in the process. The Au NP-protein agglomerates can potentially be exploited for efficient loading and subsequent release of various therapeutically important molecules, including anticancer drugs, with the unique opportunity of incorporating hydrophilic as well as hydrophobic drugs in the same nanocarrier system. Moreover, the Au NP-protein agglomerates can act as 'self-diagnostic' systems, allowing investigation of the conformational state of the associated protein(s) as well as the protein-protein or protein-Au NP interaction within the agglomerates. Furthermore, the potential of these Au NP-protein agglomerates as a novel platform for multifunctional theranostic application along with exciting future-possibilities is highlighted here.
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Affiliation(s)
- Pallab Sanpui
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
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32
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Lin W, insley T, Tuttle MD, Zhu L, Berthold DA, Král P, Rienstra CM, Murphy CJ. Control of protein orientation on gold nanoparticles. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2015; 119:21035-21043. [PMID: 28626495 PMCID: PMC5472360 DOI: 10.1021/acs.jpcc.5b07701] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Gold nanoparticles (Au NPs) have attracted much attention due to their potential applications in nano-medicine. While numerous studies have quantified biomolecular adsorption to Au NPs in terms of equilibrium binding constants, far less is known about biomolecular orientation on nanoparticle surfaces. In this study, the binding of the protein α-synuclein to citrate and (16-mercaptohexadecyl) trimethylammonium bromide (MTAB) coated 12 nm Au NPs is examined by heteronuclear single quantum coherence NMR spectroscopy to provide site-specific measurements of protein-nanoparticle binding. Molecular dynamics simulations support the orientation assignments, which show N-terminus binding to the Au NP for citrate-capped NPs, and C-terminus binding for the MTAB-capped NPs.
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Affiliation(s)
- Wayne Lin
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Matthews Avenue, Urbana, Illinois, 61801, USA
| | - Thomas insley
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, 60607, USA
| | - Marcus D. Tuttle
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Matthews Avenue, Urbana, Illinois, 61801, USA
| | - Lingyang Zhu
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, 505 South Matthews Avenue, Urbana, Illinois, 61801, USA
| | - Deborah A. Berthold
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Matthews Avenue, Urbana, Illinois, 61801, USA
| | - Petr Král
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, 60607, USA
- Department of Physics, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, 60607, USA
| | - Chad M. Rienstra
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Matthews Avenue, Urbana, Illinois, 61801, USA
- Department of Biochemistry, University of Illinois at Urbana-Champaign, 600 South Matthews Avenue, Urbana, Illinois, 61801, USA
- Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign, 607 South Matthews Avenue, Urbana, Illinois, 61801, USA
| | - Catherine J. Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Matthews Avenue, Urbana, Illinois, 61801, USA
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Lee J, Bhak G, Lee JH, Park W, Lee M, Lee D, Jeon NL, Jeong DH, Char K, Paik SR. Free-standing gold-nanoparticle monolayer film fabricated by protein self-assembly of α-synuclein. Angew Chem Int Ed Engl 2015; 54:4571-6. [PMID: 25694391 DOI: 10.1002/anie.201412461] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Indexed: 12/17/2022]
Abstract
Free-standing nanoparticle films are of great importance for developing future nano-electronic devices. We introduce a protein-based fabrication strategy of free-standing nanoparticle monolayer films. α-Synuclein, an amyloidogenic protein, was utilized to yield a tightly packed gold-nanoparticle monolayer film interconnected by protein β-sheet interactions. Owing to the stable protein-protein interaction, the film was successfully expanded to a 4-inch diameter sheet, which has not been achieved with any other free-standing nanoparticle monolayers. The film was flexible in solution, so it formed a conformal contact, surrounding even microspheres. Additionally, the monolayer film was readily patterned at micrometer-scale and thus unprecedented double-component nanoparticle films were fabricated. Therefore, the free-floating gold-nanoparticle monolayer sheets with these properties could make the film useful for the development of bio-integrated nano-devices and high-performance sensors.
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Affiliation(s)
- Junghee Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, College of Engineering, Seoul National University, Seoul 151-744 (Korea)
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34
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Lee J, Bhak G, Lee JH, Park W, Lee M, Lee D, Jeon NL, Jeong DH, Char K, Paik SR. Free-Standing Gold-Nanoparticle Monolayer Film Fabricated by Protein Self-Assembly of α-Synuclein. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201412461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Jana AK, Sengupta N. Aβ self-association and adsorption on a hydrophobic nanosurface: competitive effects and the detection of small oligomers via electrical response. SOFT MATTER 2015; 11:269-279. [PMID: 25407676 DOI: 10.1039/c4sm01845a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Treatment of Alzheimer's disease (AD) is impeded by the lack of effective early diagnostic methods. Small, soluble Aβ globulomers play a major role in AD neurotoxicity, and detecting their presence in aqueous fluids could lead to suitable sensors. We evaluate the adsorption behavior of small Aβ oligomers on the surface of a single walled carbon nanotube of high curvature. While the intrinsic self-assembly propensity of Aβ is markedly hindered by adsorption, the oligomeric units show high degrees of surface immobilization. Immobilized complexes are capable of oligomeric growth, but with a shifted monomer-oligomer equilibrium compared to the free states. In the presence of an ionic solution and suitable external electric fields, magnitudes of the current blockades are found to be sensitive to the oligomeric number of the adsorbed complex. However, this sensitivity gradually diminishes with increasing oligomeric size. The results provide a proof-of-concept basis for further investigations in the design of sensors for detecting the toxic small oligomers of Aβ.
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Affiliation(s)
- Asis K Jana
- Physical Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India.
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