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Bhattacharya A, Pandit S, Lee S, Ebrahimi SB, Samanta D. Modulating Enzyme Activity using Engineered Nanomaterials. Chembiochem 2024:e202400520. [PMID: 39117568 DOI: 10.1002/cbic.202400520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 08/07/2024] [Accepted: 08/08/2024] [Indexed: 08/10/2024]
Abstract
Enzymes serve as pivotal components in various biotechnological applications across several industries. Understanding enzyme inhibition sheds light on how certain compounds disrupt biochemical pathways, facilitating the design of targeted drugs for combating diseases. On the other hand, reversible inhibition or enhancement of activity can unlock new ways of controlling industrial reactions and boosting the catalytic activity of native enzymes that are taken out of their natural environments. Over the last two decades, immobilizing enzymes on nanomaterial-based solid supports has emerged as an especially promising approach for tuning enzyme activity. Nanomaterials not only inhibit enzymes but also enhance their performance, showcasing their versatility. This Concept highlights significant advancements in utilizing nanomaterials for enzyme modulation and discusses future prospects for leveraging this phenomenon in developing sophisticated molecular systems and downstream applications.
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Affiliation(s)
- Atri Bhattacharya
- Department of Chemistry, The University of Texas at Austin, 105 E 24th St, Austin, TX, 78712, USA
| | - Subrata Pandit
- Department of Chemistry, The University of Texas at Austin, 105 E 24th St, Austin, TX, 78712, USA
| | - Seungheon Lee
- Department of Chemistry, The University of Texas at Austin, 105 E 24th St, Austin, TX, 78712, USA
| | - Sasha B Ebrahimi
- Emerging Drug Delivery Platforms, Drug Product Development, GSK, 1250 S Collegeville Rd, Collegeville, PA-19426, USA
| | - Devleena Samanta
- Department of Chemistry, The University of Texas at Austin, 105 E 24th St, Austin, TX, 78712, USA
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2
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Breausche F, 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; 40:13957-13967. [PMID: 38919992 PMCID: PMC11238584 DOI: 10.1021/acs.langmuir.4c01180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/20/2024] [Accepted: 06/18/2024] [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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3
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Ameen F, Alown F, Dawoud T, Sharaf A, Sakayanathan P, Alyahya S. Versatility of copper-iron bimetallic nanoparticles fabricated using Hibiscus rosa-sinensis flower phytochemicals: various enzymes inhibition, antibiofilm effect, chromium reduction and dyes removal. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:142. [PMID: 38507144 DOI: 10.1007/s10653-024-01918-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 02/15/2024] [Indexed: 03/22/2024]
Abstract
Bimetallic nanoparticles (NPs) are considered superior in terms of stability and function with respect to its monometallic counterparts. Hence, in the present study Hibiscus rosa-sinensis flower extract was used to synthesis copper-iron bimetallic nanoparticles (HF-FCNPs). HF-FCNPs was characterized and its applications (biological and environmental) were determined. HF-FCNPs were spherical in shape with high percentage of copper inducted into the NPs. HF-FCNPs inhibited mammalian glucosidases [maltase (IC50: 548.71 ± 61.01 µg/mL), sucrase (IC50: 441.34 ± 36.03 µg/mL), isomaltase (IC50: 466.37 ± 27.09 µg/mL) and glucoamylase (IC50: 403.12 ± 14.03 µg/mL)], alpha-amylase (IC50: 16.27 ± 1.73 µg/mL) and acetylcholinesterase [AChE (IC50: 0.032 ± 0.004 µg/mL)] activities. HF-FCNPs showed competitive inhibition against AChE, maltase and sucrase activities; mixed inhibition against isomaltase and glucoamylase activities; whereas non-competitive inhibition against α-amylase activity. HF-FCNPs showed zone of inhibition of 16 ± 2 mm against S. mutans at 100 µg/mL concentration. HF-FCNPs inhibited biofilm formation of dental pathogen, S. mutans. SEM and confocal microscopy analysis revealed the disruption of network formation and bacterial cell death induced by HF-FCNPs treatment on tooth model of S. mutans biofilm. HF-FCNPs efficiently removed hexavalent chromium in pH-independent manner and followed first order kinetics. Through Langmuir isotherm fit the qmax (maximum adsorption capacity) was determined to be 62.5 mg/g. Further, HF-FCNPs removed both anionic and cationic dyes. Altogether, facile synthesis of HF-FCNPs was accomplished and its biological (enzyme inhibition and antibiofilm activity) and environmental (catalyst to remove pollutants) applications have been understood.
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Affiliation(s)
- Fuad Ameen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Fadaa Alown
- Science Department, Faculty of Basic Education, Public Authority for Applied Education and Training (Paaet), Kuwait City, Kuwait
| | - Turki Dawoud
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abeer Sharaf
- Jeddah Second Health Cluster- King Fahad General Hospital, Laboratory and Blood Bank Department-NAT Lab, Jeddah, Saudi Arabia
| | | | - Sami Alyahya
- Wellness and Preventive Medicine Institute, King Abdulaziz City for Science and Technology, P.O. Box 6086, 11442, Riyadh, Saudi Arabia
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Epple M, Rotello VM, Dawson K. The Why and How of Ultrasmall Nanoparticles. Acc Chem Res 2023; 56:3369-3378. [PMID: 37966025 DOI: 10.1021/acs.accounts.3c00459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
ConspectusIn this Account, we describe our research into ultrasmall nanoparticles, including their unique properties, and outline some of the new opportunities they offer. We will summarize our perspective on the current state of the field and highlight what we see as key questions that remain to be solved. First, there are several nanostructure size-scale regimes, with qualitatively distinct functional biological attributes. Broadly generalized, larger particles (e.g., larger than 300 nm) tend to be more efficiently swept away by the first line of the immune system (for example macrophages). In the "middle-sized" regime (20-300 nm), nanoparticle surfaces and shapes can be recognized by energy-dependent cellular reorganizations, then organized locally in a spatial and temporally coherent way. That energy is gated and made available by specific cellular recognition processes. The relationship between particle surface design, endogenously derived nonspecific biomolecular corona, and architectural features recognized by the cell is complex and only purposefully and very precisely designed nanoparticle architectures are able to navigate to specific targets. At sufficiently small sizes (<10 nm including the ligand shell, associated with a core diameter of a few nm at most) we enter the "quasi-molecular regime" in which the endogenous biomolecular environment exchanges so rapidly with the ultrasmall particle surface that larger scale cellular and immune recognition events are often greatly simplified. As an example, ultrasmall particles can penetrate cellular and biological barriers within tissue architectures via passive diffusion, in much the same way as small molecule drugs do. An intriguing question arises: what happens at the interface of cellular recognition and ultrasmall quasi-molecular size regimes? Succinctly put, ultrasmall conjugates can evade defense mechanisms driven by larger scale cellular nanoscale recognition, enabling them to flexibly exploit molecular interaction motifs to interact with specific targets. Numerous advances in control of architecture that take advantage of these phenomena have taken place or are underway. For instance, syntheses can now be sufficiently controlled that it is possible to make nanoparticles of a few hundreds of atoms or metalloid clusters of several tens of atoms that can be characterized by single crystal X-ray structure analysis. While the synthesis of atomically precise clusters in organic solvents presents challenges, water-based syntheses of ultrasmall nanoparticles can be upscaled and lead to well-defined particle populations. The surface of ultrasmall nanoparticles can be covalently modified with a wide variety of ligands to control the interactions of these particles with biosystems, as well as drugs and fluorophores. And, in contrast to larger particles, many advanced molecular analytical and separation tools can be applied to understand their structure. For example, NMR spectroscopy allows us to obtain a detailed image of the particle surface and the attached ligands. These are considerable advantages that allow further elaboration of the level of architectural control and characterization of the ultrasmall structures required to access novel functional regimes and outcomes. The ultrasmall nanoparticle regime has a unique status and provides a potentially very interesting direction for development.
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Affiliation(s)
- Matthias Epple
- Inorganic Chemistry and Centre for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitaetsstrasse 5-7, 45117 Essen, Germany
| | - Vincent M Rotello
- Charles A. Goessmann Professor of Chemistry and University Distinguished Professor, Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01002, United States
| | - Kenneth Dawson
- UCD School of Chemistry, Science Centre South, University College Dublin, Belfield, Dublin 4, Ireland
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Gupta A, Ndugire W, Hirschbiegel CM, Grigely L, Rotello VM. Interfacing Nanomaterials with Biology through Ligand Engineering. Acc Chem Res 2023; 56:2151-2169. [PMID: 37505102 PMCID: PMC10615117 DOI: 10.1021/acs.accounts.3c00255] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Nanoparticles (NPs) have incredible potential in biology and biomedicine. Gold nanoparticles (AuNPs) have become a cornerstone of the nanomedicine revolution due to their ease of synthesis, inertness, and versatility. The widespread use of AuNPs can be traced to the development of accessible, bottom-up wet synthesis methods that emphasized the role of ligands in controlling the size, dispersity, and stability of colloids in solution. Decoration of AuNPs with organic ligands can be used to dictate the interactions of these nanomaterials with biosystems on multiple scales. The tunability of the AuNP ligand monolayer via covalent and noncovalent approaches allows the use of AuNPs in a broad range of biomedical fields.In this Account, we describe our use of AuNPs to answer a central question in the ligand engineering of colloidal nanoparticles: can we fabricate NPs that are nontoxic, modular, and functional in biological environments? We explored spherical AuNPs of different sizes and ligand structures, empirically exploring the AuNP-biomolecule interaction. We show here how the atom-by-atom control provided by organic synthesis can be used to create engineered ligands. Presenting these ligands on the surface of AuNPs creates multivalent constructs with unique and useful properties. Ligand design is a key feature of these AuNPs. We have developed ligands that have three distinct structural segments: 1) a hydrophobic alkanethiol interior that imparts stability; 2) a tetra(ethylene glycol) segment that creates a noninteracting tabula rasa surface; and 3) ligand headgroups that dictate how the AuNP interacts with the outside world. Our research into the design principles of ligands on AuNPs and their interactions with biological systems can be translated to other nanoparticle systems.This Account also summarizes the trajectory of ligand engineering in our laboratory and further afield. At the outset, experimental and theoretical fundamental studies were focused on the interactions between AuNPs and cellular components, such as proteins and lipid membranes. Understanding these behaviors provided the direction for investigating how ligands mediate the interface of AuNPs with mammalian and bacterial cells. In these experiments, it was particularly noteworthy that the ligand hydrophobicity and charge play a significant role in the uptake and toxicity of AuNPs. These revelations formed a basis for translating AuNPs to physiological environments. We present how we have integrated our synthetic abilities to construct AuNPs for biomedical applications, including delivery, bioorthogonal catalysis, antimicrobial and antitumor therapeutics, and biosensing.Overall, we hope that this Account will give the reader insight into how our research has evolved, changing AuNPs from synthetic curiosities into functional nanoplatforms for nanomedicine, all through the power of ligand design and synthesis.
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Affiliation(s)
| | | | - Cristina-Maria Hirschbiegel
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Lily Grigely
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
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Chen WQ, Wu WJ, Yu YQ, Liu Y, Jiang FL. New Insights on the Size-Dependent Inhibition of Enzymes by Gold Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 37366026 DOI: 10.1021/acs.langmuir.3c01367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Particle size might affect the inhibition behaviors of gold nanoparticles (AuNPs) on enzyme activity by influencing the density of binding sites (ρ), the association constant (Ka), the steric hindrance of enzymes by AuNPs, the binding orientations of the enzyme on AuNPs, as well as the structural changes of enzymes. In previous studies, the effects of the above-mentioned factors, which could not be ignored in the applications of enzymatic electrochemistry, were often overshadowed by the effects of surface area. In order to study the size effect on the inhibition types and inhibitory ability of enzymes by AuNPs, we investigated the inhibition behaviors of chymotrypsin (ChT) by AuNPs with three different sizes (D1-AuNCs, D3-AuNPs, and D6-AuNPs) under the same surface area concentration. The results showed that both of the inhibition types and the inhibition ability varied with the particle size of AuNPs. D1-AuNCs inhibited ChT noncompetitively, while D3/D6-AuNPs inhibited ChT competitively. Contrary to the common sense, D6-AuNPs showed a weaker inhibitory ability than D3-AuNPs. By means of zeta potential, agarose gel electrophoresis, isothermal titration calorimetry, synchronous fluorescence spectroscopy, and circular dichroism, the mechanism of the weak inhibitory ability of D6-AuNPs was found to be the standing binding orientation caused by the small curvature. This work had certain guiding significance for the biosafety of AuNPs, the development of nanoinhibitors, as well as the applications of AuNPs in enzymatic electrochemistry.
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Affiliation(s)
- Wen-Qi Chen
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Wen-Jing Wu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Ying-Qi Yu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yi Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, P. R. China
| | - Feng-Lei Jiang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
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Abdellatif AAH, Ahmed F, Mohammed AM, Alsharidah M, Al-Subaiyel A, Samman WA, Alhaddad AA, Al-Mijalli SH, Amin MA, Barakat H, Osman SK. Recent Advances in the Pharmaceutical and Biomedical Applications of Cyclodextrin-Capped Gold Nanoparticles. Int J Nanomedicine 2023; 18:3247-3281. [PMID: 37337575 PMCID: PMC10277008 DOI: 10.2147/ijn.s405964] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 05/31/2023] [Indexed: 06/21/2023] Open
Abstract
The real problem in pharmaceutical preparation is drugs' poor aqueous solubility, low permeability through biological membranes, and short biological t1/2. Conventional drug delivery systems are not able to overcome these problems. However, cyclodextrins (CDs) and their derivatives can solve these challenges. This article aims to summarize and review the history, properties, and different applications of cyclodextrins, especially the ability of inclusion complex formation. It also refers to the effects of cyclodextrin on drug solubility, bioavailability, and stability. Moreover, it focuses on preparing and applying gold nanoparticles (AuNPs) as novel drug delivery systems. It also studies the uses and effects of cyclodextrins in this field as novel drug carriers and targeting devices. The system formulated from AuNPs linked with CD molecules combines the advantages of both CD and AuNPs. Cyclodextrins benefit in increasing aqueous drug solubility, loading capacity, stability, and size control of gold NPs. Also, AuNPs are applied as diagnostic and therapeutic agents because of their unique chemical properties. Plus, AuNPs possess several advantages such as ease of detection, targeted and selective drug delivery, greater surface area, high loading efficiency, and higher stability than microparticles. In the present article, we tried to present the potential pharmaceutical applications of CD-derived AuNPs in biomedical applications including antibacterial, anticancer, gene-drug delivery, and various targeted drug delivery applications. Also, the article highlighted the role of CDs in the preparation and improvement of catalytic enzymes, the formation of self-assembling molecular print boards, the fabrication of supramolecular functionalized electrodes, and biosensors formation.
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Affiliation(s)
- Ahmed A H Abdellatif
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Qassim, 51452, Saudi Arabia
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
| | - Fatma Ahmed
- Department of Zoology, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Ahmed M Mohammed
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
| | - Mansour Alsharidah
- Department of Physiology, College of Medicine, Qassim University, Buraydah, 51452, Saudi Arabia
| | - Amal Al-Subaiyel
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Qassim, 51452, Saudi Arabia
| | - Waad A Samman
- Department of Pharmacology and Toxicology, College of Pharmacy, Taibah University, Medina, 42353, Saudi Arabia
| | - Aisha A Alhaddad
- Department of Pharmacology and Toxicology, College of Pharmacy, Taibah University, Medina, 42353, Saudi Arabia
| | - Samiah Hamad Al-Mijalli
- Department of Biology, College of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - Mohammed A Amin
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Qassim, 51452, Saudi Arabia
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
| | - Hassan Barakat
- Department of Food Science and Human Nutrition, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, 51452, Saudi Arabia
- Food Technology Department, Faculty of Agriculture, Benha University, Moshtohor, 13736, Egypt
| | - Shaaban K Osman
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
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Lima AF, Guido VS, Mina N, Torquato RJS, Sousa AA. Time Evolution of Ultrasmall Gold Nanoparticle-Protein Interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6823-6836. [PMID: 37129569 DOI: 10.1021/acs.langmuir.3c00402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
To date, much effort has been devoted toward the study of protein corona formation onto large gold nanoparticles (GNPs). However, the protein corona concept breaks down for GNPs in the ultrasmall size regime (<3 nm), and, as a result, our understanding of ultrasmall GNP (usGNP)-protein interactions remains incomplete. Herein, we used anionic usGNPs and six different proteins as model systems to systematically investigate usGNP-protein interactions, with particular focus on the time evolution and long-term behavior of complex formation. The different proteins comprised chymotrypsin (Cht), trypsin (Try), thrombin (Thr), serum albumin (HSA), cytochrome c (Cyt c), and factor XII (FXII). We used a range of biochemical and biophysical methods to estimate binding affinities, determine the effects of usGNPs on protein structure and function, assess the reversibility of any protein structural and functional changes, and evaluate usGNP-protein complex stability. Among the main findings, we observed that prolonged (24 h)─but not short-term (10 min)─interactions between proteins and usGNPs permanently altered protein function, including enzyme activities (Try, Thr, and FXIIa), peroxidase-like activity (Cyt c), and ligand-binding properties (HSA). Remarkably, this occurred without any large-scale loss of the native global conformation, implying time-dependent effects of usGNPs on local protein conformation or dynamics. We also found that both short-(10 min) and long-term (24 h) interactions between proteins and usGNPs yielded short-lived complexes, i.e., there was no time-dependent "hardening" of the interactions at the binding interface as usually seen with large GNPs. The present study increases our fundamental understanding of nano-bio interactions in the ultrasmall size regime, which may assist the safe and effective translation of usGNPs into the clinic.
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Affiliation(s)
- André F Lima
- Department of Biochemistry, Federal University of São Paulo, São Paulo SP 04044-020, Brazil
| | - Vinicius S Guido
- Department of Biochemistry, Federal University of São Paulo, São Paulo SP 04044-020, Brazil
| | - Natasha Mina
- Department of Biochemistry, Federal University of São Paulo, São Paulo SP 04044-020, Brazil
| | - Ricardo J S Torquato
- Department of Biochemistry, Federal University of São Paulo, São Paulo SP 04044-020, Brazil
| | - Alioscka A Sousa
- Department of Biochemistry, Federal University of São Paulo, São Paulo SP 04044-020, Brazil
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Esterhuizen M, Lutsko M, Kim Y, Yoon H, Park CB, Kim YJ, Pflugmacher S. Titanium (IV) oxide anatase nanoparticles as vectors for diclofenac: assessing the antioxidative responses to single and combined exposures in the aquatic macrophyte Egeria densa. ECOTOXICOLOGY (LONDON, ENGLAND) 2023; 32:394-402. [PMID: 37000303 PMCID: PMC10102128 DOI: 10.1007/s10646-023-02646-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
Titanium dioxide, frequently used in commonplace products, is now regularly detected in aquatic environments. Understanding its toxic effects on native biota is essential. However, combined toxicity with commonly occurring pollutants, such as the pharmaceutical diclofenac, may provide more insight into environmental situations. Therefore, the present study aimed to evaluate the effects of titanium dioxide and diclofenac, individually and combined, on the macrophyte Egeria densa. Diclofenac uptake and removal by the macrophyte were assessed. Diclofenac and titanium dioxide were mixed prior to exposure to allow binding, which was assessed. Toxicity of the individual compounds and the combination was evaluated by assaying enzymes as bioindicators of biotransformation and the antioxidative system. Cytosolic glutathione S-transferase and glutathione reductase activities were increased by diclofenac, titanium dioxide, and the combination. Both enzymes' activities were more significantly elevated by diclofenac and the combination than nanoparticles alone. Microsomal glutathione S-transferase was unaffected by diclofenac exposure but inhibited with titanium dioxide and the mixture. Diclofenac elicited the most significant response. Based on the data, the cytosolic enzymes effectively prevented damage.
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Affiliation(s)
- Maranda Esterhuizen
- Ecosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, Niemenkatu 73, University of Helsinki, 15140, Lahti, Finland.
- Helsinki Institute of Sustainability Science (HELSUS), Fabianinkatu 33, 00014, Helsinki, Finland.
- Clayton H. Riddell Faculty of Environment, Earth, and Resources, University of Manitoba, Wallace Building, 125 Dysart Road, Winnipeg, MB, R3T 2N2, Canada.
- Korea Institute of Science and Technology Europe (KIST Europe) Forschungsgesellschaft GmbH, Joint Laboratory of Applied Ecotoxicology, Environmental Safety Group, Universität des Saarlandes Campus E7 1, 66123, Saarbrücken, Germany.
| | - Mariia Lutsko
- Department of Biotechnology, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355, Berlin, Germany
| | - Youngsam Kim
- Korea Institute of Science and Technology Europe (KIST Europe) Forschungsgesellschaft GmbH, Joint Laboratory of Applied Ecotoxicology, Environmental Safety Group, Universität des Saarlandes Campus E7 1, 66123, Saarbrücken, Germany
| | - Hakwon Yoon
- Environmental Exposure & Toxicology Research Center, Korea Institute of Toxicology, 17, Jegok-gil, Jinju, 52834, Republic of Korea
| | - Chang-Beom Park
- Environmental Exposure & Toxicology Research Center, Korea Institute of Toxicology, 17, Jegok-gil, Jinju, 52834, Republic of Korea
| | - Young Jun Kim
- Korea Institute of Science and Technology Europe (KIST Europe) Forschungsgesellschaft GmbH, Joint Laboratory of Applied Ecotoxicology, Environmental Safety Group, Universität des Saarlandes Campus E7 1, 66123, Saarbrücken, Germany
| | - Stephan Pflugmacher
- Clayton H. Riddell Faculty of Environment, Earth, and Resources, University of Manitoba, Wallace Building, 125 Dysart Road, Winnipeg, MB, R3T 2N2, Canada
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10
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Yu YQ, Chen WQ, Li XH, Liu M, He XH, Liu Y, Jiang FL. Quantum Dots Meet Enzymes: Hydrophobicity of Surface Ligands and Size Do Matter. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3967-3978. [PMID: 36877959 DOI: 10.1021/acs.langmuir.2c03283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Colloidal quantum dots (QDs) are a class of representative fluorescent nanomaterials with tunable, bright, and sharp fluorescent emission, with promising biomedical applications. However, their effects on biological systems are not fully elucidated. In this work, we investigated the interactions between QDs with different surface ligands and different particle sizes and α-chymotrypsin (ChT) from the thermodynamic and kinetic perspectives. Enzymatic activity experiments demonstrated that the catalytic activity of ChT was strongly inhibited by QDs coated with dihydrolipoic acid (DHLA-QDs) with noncompetitive inhibitions, whereas the QDs coated with glutathione (GSH-QDs) had weak effects. Furthermore, kinetics studies showed that different particle sizes of DHLA-QDs all had high suppressive effects on the catalytic activity of ChT. It was found that DHLA-QDs with larger particle sizes had stronger inhibition effects because more ChT molecules were bound onto the surface of QDs. This work highlights the importance of hydrophobic ligands and particle sizes of QDs, which should be considered as the primary influencing factors in the assessment of biosafety. Meanwhile, the results herein can also inspire the design of nano inhibitors.
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Affiliation(s)
- Ying-Qi Yu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Wen-Qi Chen
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Xiao-Han Li
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Meng Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Xiao-Hang He
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Yi Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023, P. R. China
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Chemistry, Tiangong University, Tianjin 300387, P. R. China
| | - Feng-Lei Jiang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
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11
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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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12
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Piletsky SA, Bedwell T, Paoletti R, Karim K, Canfarotta F, Norman R, Jones D, Turner N, Piletska E. Modulation of Acetylcholinesterase Activity Using Molecularly Imprinted Polymer Nanoparticles. J Mater Chem B 2022; 10:6732-6741. [DOI: 10.1039/d2tb00278g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Modulation of enzyme activity allows for control over many biological pathways and while strategies for the pharmaceutical design of inhibitors are well established; methods for promoting activation, that is an...
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13
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Pandit S, De M. One-pot bottom-up synthesis of a 2D graphene derivative: application in biomolecular recognition and nanozyme activity. NANOSCALE ADVANCES 2021; 3:5102-5110. [PMID: 36132346 PMCID: PMC9419244 DOI: 10.1039/d1na00226k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/20/2021] [Indexed: 06/15/2023]
Abstract
The synthesis of two-dimensional (2D) nanosheets such as graphene and its derivatives through a bottom-up approach has many advantages such as growth control and functionalization, but it is always challenging to get the desired material. Herein, we have reported the synthesis of water soluble 2D-nanosheets through a bottom-up approach from 2,4,6-tribromo-3-hydroxybenzoic acid via a self-coupling pathway and characterized them using several techniques. AFM and TEM analyses reveal that the synthesized material has a layered structure with a thickness of ∼1.2 nm. Also, the prepared nanosheets are amorphous in nature with high negative charge (-38 ± 2.5 mV). The flexible nature of 2D-nanosheets and their functionality can be used in many related applications. Therefore, we have utilized the synthesized 2D-nanosheets in biomolecular recognition studies. It was found that the enzymatic activity of α-chymotrypsin can be controlled reversibly in the presence of the synthesized 2D-nanosheets. The kinetic study revealed that the nanosheet surface selectively binds to the active sites of the enzyme through a competitive pathway. Furthermore, we explored the nanozyme activity of the material in a peroxidase-like activity assay of two bio-active molecules: Nicotinamide Adenine Dinucleotide Phosphate (NADH) and dopamine. The results suggest that the prepared material efficiently catalyzed the oxidation of NADH to biological cofactor NAD+ and dopamine to aminochrome in the presence of H2O2. These synthesized graphene-like 2D-nanosheets with functional groups can be further tuned with other functionalities, which can open a new window for other related applications.
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Affiliation(s)
- Subrata Pandit
- Indian Institute of Science, Department of Organic Chemistry Bangalore India
| | - Mrinmoy De
- Indian Institute of Science, Department of Organic Chemistry Bangalore India
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14
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Huang R, Luther DC, Zhang X, Gupta A, Tufts SA, Rotello VM. Engineering the Interface between Inorganic Nanoparticles and Biological Systems through Ligand Design. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1001. [PMID: 33924735 PMCID: PMC8069843 DOI: 10.3390/nano11041001] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 12/15/2022]
Abstract
Nanoparticles (NPs) provide multipurpose platforms for a wide range of biological applications. These applications are enabled through molecular design of surface coverages, modulating NP interactions with biosystems. In this review, we highlight approaches to functionalize nanoparticles with "small" organic ligands (Mw < 1000), providing insight into how organic synthesis can be used to engineer NPs for nanobiology and nanomedicine.
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Affiliation(s)
| | | | | | | | | | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 N. Pleasant St., Amherst, MA 01003, USA; (R.H.); (D.C.L.); (X.Z.); (A.G.); (S.A.T.)
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15
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Amina SJ, Guo B. A Review on the Synthesis and Functionalization of Gold Nanoparticles as a Drug Delivery Vehicle. Int J Nanomedicine 2020; 15:9823-9857. [PMID: 33324054 PMCID: PMC7732174 DOI: 10.2147/ijn.s279094] [Citation(s) in RCA: 190] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 10/23/2020] [Indexed: 12/16/2022] Open
Abstract
Metal nanoparticles are being extensively used in biomedical fields due to their small size-to-volume ratio and extensive thermal stability. Gold nanoparticles (AuNPs) are an obvious choice for biomedical applications due to their amenability of synthesis, stabilization, and functionalization, low toxicity, and ease of detection. In the past few decades, various chemical methods have been used for the synthesis of AuNPs, but recently, newer environment friendly green approaches for the synthesis of AuNPs have gained attention. AuNPs can be conjugated with a number of functionalizing moieties including ligands, therapeutic agents, DNA, amino acids, proteins, peptides, and oligonucleotides. Recently, studies have shown that gold nanoparticles not only infiltrate the blood vessels to reach the site of tumor but also enter inside the organelles, suggesting that they can be employed as effective drug carriers. Moreover, after reaching their target site, gold nanoparticles can release their payload upon an external or internal stimulus. This review focuses on recent advances in various methods of synthesis of AuNPs. In addition, strategies of functionalization and mechanisms of application of AuNPs in drug and bio-macromolecule delivery and release of payloads at target site are comprehensively discussed.
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Affiliation(s)
- Sundus Jabeen Amina
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Bin Guo
- Department of Pharmacological & Pharmaceutical Sciences, University of Houston, Houston, TX77204, USA
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16
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Hennig A, Nau WM. Interaction of Cucurbit[7]uril With Protease Substrates: Application to Nanosecond Time-Resolved Fluorescence Assays. Front Chem 2020; 8:806. [PMID: 33134264 PMCID: PMC7511663 DOI: 10.3389/fchem.2020.00806] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 07/31/2020] [Indexed: 01/04/2023] Open
Abstract
We report the use of the macrocyclic host cucurbit[7]uril (CB7) as a supramolecular additive in nanosecond time-resolved fluorescence (Nano-TRF) assays for proteases to enhance the discrimination of substrates and products and, thereby, the sensitivity. A peptide substrate was labeled with 2,3-diazabicyclo[2.2.2]oct-2-ene (DBO) as a long-lived (>300 ns) fluorescent probe and 3-nitrotyrosine was established as a non-fluorescent fluorescence resonance energy transfer (FRET) acceptor that acts as a “dark quencher.” The substrate was cleaved by the model proteases trypsin and chymotrypsin and the effects of the addition of CB7 to the enzyme assay mixture were investigated in detail using UV/VIS absorption as well as steady-state and time-resolved fluorescence spectroscopy. This also allowed us to identify the DBO and nitrotyrosine residues as preferential binding sites for CB7 and suggested a hairpin conformation of the peptide, in which the guanidinium side chain of an arginine residue is additionally bound to a vacant ureido rim of one of the CB7 hosts.
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Affiliation(s)
- Andreas Hennig
- Department of Life Sciences and Chemistry, Jacobs University Bremen gGmbH, Bremen, Germany.,Institute of Chemistry of New Materials, School of Biology/Chemistry, Universität Osnabrück, Osnabrück, Germany.,Center of Cellular Nanoanalytics (CellNanOs), Universität Osnabrück, Osnabrück, Germany
| | - Werner M Nau
- Department of Life Sciences and Chemistry, Jacobs University Bremen gGmbH, Bremen, Germany
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17
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Di Giosia M, Marforio TD, Cantelli A, Valle F, Zerbetto F, Su Q, Wang H, Calvaresi M. Inhibition of α-chymotrypsin by pristine single-wall carbon nanotubes: Clogging up the active site. J Colloid Interface Sci 2020; 571:174-184. [DOI: 10.1016/j.jcis.2020.03.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/26/2020] [Accepted: 03/08/2020] [Indexed: 10/24/2022]
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18
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Chen WQ, Yin MM, Song PJ, He XH, Liu Y, Jiang FL. Thermodynamics, Kinetics and Mechanisms of Noncompetitive Allosteric Inhibition of Chymotrypsin by Dihydrolipoic Acid-Coated Gold Nanoclusters. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:6447-6457. [PMID: 32460493 DOI: 10.1021/acs.langmuir.0c00699] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Enzymes are an important class of biomacromolecules which catalyze many metabolic processes in living systems. Nanomaterials can be synthesized with tailored sizes as well as desired surface modifications, thus acting as promising enzyme regulators. Fluorescent gold nanoclusters (AuNCs) are a representative class of ultrasmall nanoparticles (USNPs) with sizes of ∼2 nm, smaller than most of proteins including enzymes. In this work, we chose α-chymotrypsin (ChT) and AuNCs as the model system. Activity assays and inhibition kinetics studies showed that dihydrolipoic acid (DHLA)-coated AuNCs (DHLA-AuNCs) had a high inhibitory potency (IC50 = 3.4 μM) and high inhibitory efficacy (>80%) on ChT activity through noncompetitive inhibition mechanism. In distinct contrast, glutathione (GSH)-coated AuNCs (GSH-AuNCs) had no significant inhibition effects. Fluorescence spectroscopy, agarose gel electrophoresis and circular dichroism (CD) spectroscopy were conducted to explore the underlying mechanisms. A two-step interaction model was proposed. First, both DHLA-AuNCs and GSH-AuNCs might be bound to the positively charged sites of ChT through electrostatic forces. Second, further hydrophobic interactions occurred between three tyrosine residues of ChT and the hydrophobic carbon chain of DHLA, leading to a significant structural change thus to deactivate ChT on the allosteric site. On the contrary, no such interactions occurred with GSH of zwitterionic characteristic, which explained no inhibitory effect of GSH-AuNCs on ChT. To the best of our knowledge, this is the first example of the allosteric inhibition of ChT by nano regulators. These findings provide a fundamental basis for the design and development of nano regulators.
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Affiliation(s)
- Wen-Qi Chen
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Miao-Miao Yin
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Peng-Jun Song
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Xiao-Hang He
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yi Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
- Hubei Province Key Laboratory for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
- Guangxi Key Laboratory of Natural Polymer Chemistry, College of Chemistry and Materials Science, Nanning Normal University, Nanning 530001, P. R. China
| | - Feng-Lei Jiang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
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19
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Coglitore D, Janot JM, Balme S. Protein at liquid solid interfaces: Toward a new paradigm to change the approach to design hybrid protein/solid-state materials. Adv Colloid Interface Sci 2019; 270:278-292. [PMID: 31306853 DOI: 10.1016/j.cis.2019.07.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/04/2019] [Accepted: 07/05/2019] [Indexed: 10/26/2022]
Abstract
This review gives an overview of protein adsorption at solid/liquid interface. Compared to the other ones, we have focus on three main questions with the point of view of the protein. The first question is related to the kinetic and especially the using of Langmuir model to describe the protein adsorption. The second question is about the concept of hard and soft protein. In this part, we report the protein structural modification induced by adsorption regarding their intrinsic structure. This allows formulating of a new concept to classify the protein to predict their behavior at solid/liquid interface. The last question is related to the protein corona. We give an overview about the soft/hard corona and attempt to make correlation with the concept of hard/soft protein.
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20
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Hosseini-Koupaei M, Shareghi B, Saboury AA, Davar F, Sirotkin VA, Hosseini-Koupaei MH, Enteshari Z. Catalytic activity, structure and stability of proteinase K in the presence of biosynthesized CuO nanoparticles. Int J Biol Macromol 2018; 122:732-744. [PMID: 30408449 DOI: 10.1016/j.ijbiomac.2018.11.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 10/14/2018] [Accepted: 11/01/2018] [Indexed: 12/18/2022]
Abstract
Here, CuO nanoparticles were synthesized using Sambucus nigra (elderberry) fruit extract. Further, the binding of proteinase K, as a model enzyme with green synthesized nanoparticles was investigated. The results demonstrated that the structural changes in enzyme were induced by the binding of nanoparticles. These changes were accompanied by the decrease in the Michaelis-Menten constant at 298 K. This means that the enzyme affinity for the substrate was increased. Thermodynamic parameters of protein stability and protein-ligand binding were estimated from the spectroscopic measurements at 298-333 K. Depending on the temperature, CuO nanoparticles showed a dual effect on the thermodynamic stability and binding affinity of enzyme. Nanoparticles increase the stability of the native state of enzyme at room temperature. On the other hand, nanoparticles stabilize the unfolded state of enzyme at 310-333 K. An overall favorable Gibbs energy change was observed for the binding process at 298-333 K. The enzyme-nanoparticle binding is enthalpically driven at room temperature. It was concluded that hydrogen bonding plays a key role in the interaction of enzyme with nanoparticles at 298-310 K. At higher temperatures, the protein-ligand binding is entropically driven. This means that hydrophobic association plays a major role in the proteinase K-CuO binding at 310-333 K.
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Affiliation(s)
- Mansoore Hosseini-Koupaei
- Department of Biology, Faculty of Science, University of Shahrekord, Shahrekord, P. O. Box .115, Iran; Department of Biology, Naghshe Jahan Institute of Higher Education, Isfahan, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, University of Shahrekord, Shahrekord, P. O. Box .115, Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
| | - Fatemeh Davar
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Vladimir A Sirotkin
- Kazan Federal University, A.M. Butlerov Institute of Chemistry, Kremlevskaya str., 18, Kazan 420008, Russia
| | | | - Zahra Enteshari
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
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21
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Jiang X, Du B, Huang Y, Zheng J. Ultrasmall Noble Metal Nanoparticles: Breakthroughs and Biomedical Implications. NANO TODAY 2018; 21:106-125. [PMID: 31327979 PMCID: PMC6640873 DOI: 10.1016/j.nantod.2018.06.006] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
As a bridge between individual atoms and large plasmonic nanoparticles, ultrasmall (core size <3 nm) noble metal nanoparticles (UNMNPs) have been serving as model for us to fundamentally understand many unique properties of noble metals that can only be observed at an extremely small size scale. With decades'efforts, many significant breakthroughs in the synthesis, characterization and functionalization of UNMNPs have laid down a solid foundation for their future applications in the healthcare. In this review, we aim to tightly correlate these breakthroughs with their biomedical applications and illustrate how to utilize these breakthroughs to address long-standing challenges in the clinical translation of nanomedicines. In the end, we offer our perspective on the remaining challenges and opportunities at the frontier of biomedical-related UNMNPs research.
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Affiliation(s)
- Xingya Jiang
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, USA
| | - Bujie Du
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, USA
| | - Yingyu Huang
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, USA
| | - Jie Zheng
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, USA
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22
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Wang S, Li F, Hu X, Lv M, Fan C, Ling D. Tuning the Intrinsic Nanotoxicity in Advanced Therapeutics. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800059] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Shuying Wang
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences; Zhejiang University; Hangzhou 310058 China
| | - Fangyuan Li
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences; Zhejiang University; Hangzhou 310058 China
- Hangzhou Institute of Innovative Medicine; College of Pharmaceutical Sciences; Zhejiang University; Hangzhou 310058 China
| | - Xi Hu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences; Zhejiang University; Hangzhou 310058 China
| | - Min Lv
- Division of Physical Biology and Bioimaging Center; Shanghai Synchrotron Radiation Facility; CAS Key Laboratory of Interfacial Physics and Technology; Shanghai Institute of Applied Physics; Chinese Academy of Sciences; University of Chinese Academy of Sciences; Shanghai 201800 China
| | - Chunhai Fan
- Division of Physical Biology and Bioimaging Center; Shanghai Synchrotron Radiation Facility; CAS Key Laboratory of Interfacial Physics and Technology; Shanghai Institute of Applied Physics; Chinese Academy of Sciences; University of Chinese Academy of Sciences; Shanghai 201800 China
| | - Daishun Ling
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences; Zhejiang University; Hangzhou 310058 China
- Hangzhou Institute of Innovative Medicine; College of Pharmaceutical Sciences; Zhejiang University; Hangzhou 310058 China
- Key Laboratory of Biomedical Engineering of the Ministry of Education; College of Biomedical Engineering and Instrument Science; Zhejiang University; Hangzhou 310027 China
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23
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Hossen MN, Murphy B, García-Hevia L, Bhattacharya R, Mukherjee P. Probing Cellular Processes Using Engineered Nanoparticles. Bioconjug Chem 2018; 29:1793-1808. [PMID: 29742344 PMCID: PMC6893851 DOI: 10.1021/acs.bioconjchem.8b00026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nanoparticles, the building blocks of nanotechnology, have been widely utilized in various biomedical applications, such as detection, diagnosis, imaging, and therapy. However, another emerging, albeit under-represented, area is the employment of nanoparticles as tools to understand cellular processes (e.g., oxidative stress-induced signaling cascades). Such investigations have enormous potential to characterize a disease from a different perspective and unravel some new features that otherwise would have remained a mystery. In this review, we summarize the intrinsic biological properties of unmodified as well surface modified nanoparticles and discuss how such properties could be utilized to interrogate biological processes and provide a perspective for future evolution of this field.
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Affiliation(s)
- Md Nazir Hossen
- Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
- Department of Pathology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Brennah Murphy
- Department of Pathology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Lorena García-Hevia
- Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
- Department of Pathology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Resham Bhattacharya
- Department of Obstetrics and Gynecology, and University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Priyabrata Mukherjee
- Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
- Department of Pathology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
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24
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Bortot A, Zanzoni S, D'Onofrio M, Assfalg M. Specific Interaction Sites Determine Differential Adsorption of Protein Structural Isomers on Nanoparticle Surfaces. Chemistry 2018; 24:5911-5919. [PMID: 29446497 DOI: 10.1002/chem.201705994] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Indexed: 11/08/2022]
Abstract
In biological systems, nanoparticles (NPs) elicit bioactivity upon interaction with proteins. As a result of post-translational modification, proteins occur in a variety of alternative covalent forms, including structural isomers, which present unique molecular surfaces. We aimed at a detailed description of the recognition of protein isomeric species by NP surfaces. The transient adsorption of isomeric ubiquitin (Ub) dimers by NPs was investigated by solution NMR spectroscopy. Lys63- and Lys48-linked Ub2 were adsorbed by large anionic NPs with different affinities, whereas the binding strength was similar in the cases of smaller particles. After the incorporation of paramagnetic tags into NPs, the observed site-resolved paramagnetic footprints provided a high-resolution map of the different protein surfaces binding to NPs. The approach described could be extended to further protein isoforms and more specialized NP systems to allow better control of the interactions between NPs and protein targets.
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Affiliation(s)
- Andrea Bortot
- Department of Biotechnology, University of Verona, Strada Le Grazie, 15, 37134, Verona, Italy
| | - Serena Zanzoni
- Department of Biotechnology, University of Verona, Strada Le Grazie, 15, 37134, Verona, Italy
| | - Mariapina D'Onofrio
- Department of Biotechnology, University of Verona, Strada Le Grazie, 15, 37134, Verona, Italy
| | - Michael Assfalg
- Department of Biotechnology, University of Verona, Strada Le Grazie, 15, 37134, Verona, Italy
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25
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Askin S, Bond TEH, Sorenson AE, Moreau MJJ, Antony H, Davis RA, Schaeffer PM. Selective protein unfolding: a universal mechanism of action for the development of irreversible inhibitors. Chem Commun (Camb) 2018; 54:1738-1741. [DOI: 10.1039/c8cc00090e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Selective protein unfolding was combined with high-throughput differential scanning fluorimetry of GFP-tagged proteins for the identification of irreversible enzyme inhibitors.
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Affiliation(s)
- Samuel Askin
- Centre for Biodiscovery & Molecular Development of Therapeutics
- James Cook University
- 142
- James Cook Drive
- Townsville
| | - Thomas E. H. Bond
- Centre for Biodiscovery & Molecular Development of Therapeutics
- James Cook University
- 142
- James Cook Drive
- Townsville
| | - Alanna E. Sorenson
- Centre for Biodiscovery & Molecular Development of Therapeutics
- James Cook University
- 142
- James Cook Drive
- Townsville
| | - Morgane J. J. Moreau
- Centre for Biodiscovery & Molecular Development of Therapeutics
- James Cook University
- 142
- James Cook Drive
- Townsville
| | - Helma Antony
- Centre for Biodiscovery & Molecular Development of Therapeutics
- James Cook University
- 142
- James Cook Drive
- Townsville
| | - Rohan A. Davis
- Griffith Institute for Drug Discovery
- Griffith University
- Brisbane
- Australia
| | - Patrick M. Schaeffer
- Centre for Biodiscovery & Molecular Development of Therapeutics
- James Cook University
- 142
- James Cook Drive
- Townsville
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26
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Wan J, Han J, Wang Y, Ni L, Wang L, Li C. Switch on/off of cellulase activity based on synergetic polymer pair system. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.06.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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27
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Zhao L, Wu X, Wang X, Duan C, Wang H, Punjabi A, Zhao Y, Zhang Y, Xu Z, Gao H, Han G. Development of Excipient-Free Freeze-Dryable Unimolecular Hyperstar Polymers for Efficient siRNA Silencing. ACS Macro Lett 2017; 6:700-704. [PMID: 35650873 DOI: 10.1021/acsmacrolett.7b00242] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We designed a unimolecular hyperstar polymer for efficient small interfering RNA (siRNA) delivery that can be processed under repeated lyophilization and reconstitution without the need of any excipient. The hyperstar polymer contains a biodegradable hyperbranched core and is bound to siRNA through its thousands of cationic arms that radiate from its core. The siRNA/hyperstar complexes showed siRNA transfection efficiency that was superior to that of Lipofectamine2000 in regard to the gene for human Cu, Zn superoxide dismutase 1 (SOD1), whose mutation causes familial amyotrophic lateral sclerosis. More importantly, hyperstar polymers as unimolecular containers minimized the multipolymer cross-interaction during lyophilization, and this maintained the uniquely high transfection efficiency of the siRNA/hyperstar complexes after repeated freeze-drying and reconstitution without the conventional need for excipient.
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Affiliation(s)
- Liang Zhao
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, United States.,State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012, People's Republic of China
| | - Xiang Wu
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, United States
| | - Xiaofeng Wang
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012, People's Republic of China
| | - Hongyan Wang
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, United States
| | - Amol Punjabi
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, United States
| | - Yang Zhao
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, United States
| | - Yuanwei Zhang
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, United States
| | - Zuoshang Xu
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, United States
| | - Haifeng Gao
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Gang Han
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, United States
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28
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Kopp M, Kollenda S, Epple M. Nanoparticle-Protein Interactions: Therapeutic Approaches and Supramolecular Chemistry. Acc Chem Res 2017; 50:1383-1390. [PMID: 28480714 DOI: 10.1021/acs.accounts.7b00051] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Research on nanoparticles has evolved into a major topic in chemistry. Concerning biomedical research, nanoparticles have decisively entered the field, creating the area of nanomedicine where nanoparticles are used for drug delivery, imaging, and tumor targeting. Besides these functions, scientists have addressed the specific ways in which nanoparticles interact with biomolecules, with proteins being the most prominent example. Depending on their size, shape, charge, and surface functionality, specifically designed nanoparticles can interact with proteins in a defined way. Proteins have typical dimensions of 5-20 nm. Ultrasmall nanoparticles (size about 1-2 nm) can address specific epitopes on the surface of a protein, for example, an active center of an enzyme. Medium-sized nanoparticles (size about 5 nm) can interact with proteins on a 1:1 basis. Large nanoparticles (above 20 nm) are big in comparison to many proteins and therefore are at the borderline to a two-dimensional surface onto which a protein will adsorb. This can still lead to irreversible structural changes in a protein and a subsequent loss of function. However, as most cells readily take up nanoparticles of almost any size, it is easily possible to use nanoparticles as transporters for proteins into a cell, for example, to address an internal receptor. Much work has been dedicated to this approach, but it is constrained by two processes that can only be observed in living cells or organisms. First, nanoparticles are usually taken up by endocytosis and are delivered into an intracellular endosome. After fusion with a lysosome, a degradation or denaturation of the protein cargo by the acidic environment or by proteases may occur before it can enter the cytoplasm. Second, nanoparticles are rapidly coated with proteins upon contact with biological media like blood. This so-called protein corona influences the contact with other proteins, cells, or tissue and may prevent the desired interaction. Essentially, these effects cannot be understood in purely chemical approaches but require biological environments and systems because the underlying processes are simply too complicated to be modeled in nonbiological systems. The area of nanoparticle-protein interactions strongly relies on different approaches: Synthetic chemistry is involved to prepare, stabilize, and functionalize nanoparticles. High-end analytical chemistry is required to understand the nature of a nanoparticle surface and the steps of its interaction with proteins. Concepts from supramolecular chemistry help to understand the complex noncovalent interactions between the surfaces of proteins and nanoparticles. Protein chemistry and biophysical chemistry are required to understand the behavior of a protein in contact with a nanoparticle. Finally, all chemical concepts must live up to the "biological reality", first in cell culture experiments in vitro and finally in animal or human experiments in vivo, to open new therapies in the 21st century. This interdisciplinary approach makes the field highly exciting but also highly demanding for chemists who, however, have to learn to understand the language of other areas.
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Affiliation(s)
- Mathis Kopp
- Inorganic Chemistry and Center for Nanointegration
Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitaetsstr. 5-7, 45117 Essen, Germany
| | - Sebastian Kollenda
- Inorganic Chemistry and Center for Nanointegration
Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitaetsstr. 5-7, 45117 Essen, Germany
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration
Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Universitaetsstr. 5-7, 45117 Essen, Germany
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29
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Devineau S, Zargarian L, Renault JP, Pin S. Structure and Function of Adsorbed Hemoglobin on Silica Nanoparticles: Relationship between the Adsorption Process and the Oxygen Binding Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3241-3252. [PMID: 28263607 DOI: 10.1021/acs.langmuir.6b04281] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The connection between the mechanisms of protein adsorption on nanoparticles and the structural and functional properties of the adsorbed protein often remains unclear. We investigate porcine hemoglobin adsorption on silica nanoparticles, and we analyze the structural and functional modifications of adsorbed hemoglobin by UV-vis spectrophotometry, circular dichroism, and oxygen binding measurement. The structural analysis of adsorbed hemoglobin on silica nanoparticles reveals a significant loss of secondary structure and a preservation of the heme electronic structure. However, adsorbed hemoglobin retains its quaternary structure and exhibits an enhanced oxygen affinity with cooperative binding. Moreover, the structural and functional modifications are fully reversible after complete desorption from silica nanoparticles at pH 8.7. The tunable adsorption and desorption of hemoglobin on SNPs with pH change, and the full control of hemoglobin activity by pH, temperature, and the addition of inorganic phosphate effectors opens the way to an interesting system whereby protein adsorption on nanoparticles can allow for full control over hemoglobin oxygen binding activity. Our results suggest that adsorption of hemoglobin on silica nanoparticles leads to a new structural, functional, and dynamic state with full reversibility in a way that significantly differs from protein denaturation.
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Affiliation(s)
- Stéphanie Devineau
- LIONS, NIMBE, CEA, CNRS, Université Paris-Saclay , CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Loussiné Zargarian
- LBPA, ENS de Cachan, CNRS, Université Paris-Saclay , 94235 Cachan Cedex, France
| | - Jean Philippe Renault
- LIONS, NIMBE, CEA, CNRS, Université Paris-Saclay , CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Serge Pin
- LIONS, NIMBE, CEA, CNRS, Université Paris-Saclay , CEA Saclay, 91191 Gif-sur-Yvette, France
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30
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Cummings CS, Campbell AS, Baker SL, Carmali S, Murata H, Russell AJ. Design of Stomach Acid-Stable and Mucin-Binding Enzyme Polymer Conjugates. Biomacromolecules 2017; 18:576-586. [DOI: 10.1021/acs.biomac.6b01723] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Chad S. Cummings
- Center for Polymer-Based Protein Engineering, ‡Department of Biomedical Engineering, §Disruptive Health Technology
Institute, and ∥Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Alan S. Campbell
- Center for Polymer-Based Protein Engineering, ‡Department of Biomedical Engineering, §Disruptive Health Technology
Institute, and ∥Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Stefanie L. Baker
- Center for Polymer-Based Protein Engineering, ‡Department of Biomedical Engineering, §Disruptive Health Technology
Institute, and ∥Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Sheiliza Carmali
- Center for Polymer-Based Protein Engineering, ‡Department of Biomedical Engineering, §Disruptive Health Technology
Institute, and ∥Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Hironobu Murata
- Center for Polymer-Based Protein Engineering, ‡Department of Biomedical Engineering, §Disruptive Health Technology
Institute, and ∥Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Alan J. Russell
- Center for Polymer-Based Protein Engineering, ‡Department of Biomedical Engineering, §Disruptive Health Technology
Institute, and ∥Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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31
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Zhao D, Zhou J. Electrostatics-mediated α-chymotrypsin inhibition by functionalized single-walled carbon nanotubes. Phys Chem Chem Phys 2017; 19:986-995. [DOI: 10.1039/c6cp04962a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Electrostatics-mediated α-chymotrypsin inhibition by functionalized single-walled carbon nanotubes.
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Affiliation(s)
- Daohui Zhao
- School of Chemistry and Chemical Engineering
- Guangdong Provincial Key Lab for Green Chemical Product Technology
- South China University of Technology
- Guangzhou
- P. R. China
| | - Jian Zhou
- School of Chemistry and Chemical Engineering
- Guangdong Provincial Key Lab for Green Chemical Product Technology
- South China University of Technology
- Guangzhou
- P. R. China
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32
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Klein G, Mathé C, Biola-Clier M, Devineau S, Drouineau E, Hatem E, Marichal L, Alonso B, Gaillard JC, Lagniel G, Armengaud J, Carrière M, Chédin S, Boulard Y, Pin S, Renault JP, Aude JC, Labarre J. RNA-binding proteins are a major target of silica nanoparticles in cell extracts. Nanotoxicology 2016; 10:1555-1564. [PMID: 27705051 DOI: 10.1080/17435390.2016.1244299] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Upon contact with biological fluids, nanoparticles (NPs) are readily coated by cellular compounds, particularly proteins, which are determining factors for the localization and toxicity of NPs in the organism. Here, we improved a methodological approach to identify proteins that adsorb on silica NPs with high affinity. Using large-scale proteomics and mixtures of soluble proteins prepared either from yeast cells or from alveolar human cells, we observed that proteins with large unstructured region(s) are more prone to bind on silica NPs. These disordered regions provide flexibility to proteins, a property that promotes their adsorption. The statistical analyses also pointed to a marked overrepresentation of RNA-binding proteins (RBPs) and of translation initiation factors among the adsorbed proteins. We propose that silica surfaces, which are mainly composed of Si-O- and Si-OH groups, mimic ribose-phosphate molecules (rich in -O- and -OH) and trap the proteins able to interact with ribose-phosphate containing molecules. Finally, using an in vitro assay, we showed that the sequestration of translation initiation factors by silica NPs results in an inhibition of the in vitro translational activity. This result demonstrates that characterizing the protein corona of various NPs would be a relevant approach to predict their potential toxicological effects.
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Affiliation(s)
- Géraldine Klein
- a I2BC, IBITEC-S, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay , Gif-sur-Yvette , France.,b LIONS, NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay , Gif-sur-Yvette , France
| | - Christelle Mathé
- a I2BC, IBITEC-S, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay , Gif-sur-Yvette , France.,b LIONS, NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay , Gif-sur-Yvette , France
| | - Mathilde Biola-Clier
- c Univ. Grenoble Alpes, CEA, INAC-SyMMES, Laboratoire Lésions des Acides Nucléiques , Grenoble , France , and
| | - Stéphanie Devineau
- b LIONS, NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay , Gif-sur-Yvette , France
| | - Emilie Drouineau
- a I2BC, IBITEC-S, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay , Gif-sur-Yvette , France
| | - Elie Hatem
- a I2BC, IBITEC-S, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay , Gif-sur-Yvette , France
| | - Laurent Marichal
- a I2BC, IBITEC-S, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay , Gif-sur-Yvette , France.,b LIONS, NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay , Gif-sur-Yvette , France
| | - Béatrice Alonso
- d CEA-Marcoule, DRF/IBITEC-S/SPI/Li2D, Laboratory 'Innovative technologies for Detection and Diagnostics', BP 17171 , Bagnols-sur-Cèze , France
| | - Jean-Charles Gaillard
- d CEA-Marcoule, DRF/IBITEC-S/SPI/Li2D, Laboratory 'Innovative technologies for Detection and Diagnostics', BP 17171 , Bagnols-sur-Cèze , France
| | - Gilles Lagniel
- a I2BC, IBITEC-S, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay , Gif-sur-Yvette , France
| | - Jean Armengaud
- d CEA-Marcoule, DRF/IBITEC-S/SPI/Li2D, Laboratory 'Innovative technologies for Detection and Diagnostics', BP 17171 , Bagnols-sur-Cèze , France
| | - Marie Carrière
- c Univ. Grenoble Alpes, CEA, INAC-SyMMES, Laboratoire Lésions des Acides Nucléiques , Grenoble , France , and
| | - Stéphane Chédin
- a I2BC, IBITEC-S, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay , Gif-sur-Yvette , France
| | - Yves Boulard
- a I2BC, IBITEC-S, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay , Gif-sur-Yvette , France
| | - Serge Pin
- b LIONS, NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay , Gif-sur-Yvette , France
| | - Jean-Philippe Renault
- b LIONS, NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay , Gif-sur-Yvette , France
| | - Jean-Christophe Aude
- a I2BC, IBITEC-S, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay , Gif-sur-Yvette , France
| | - Jean Labarre
- a I2BC, IBITEC-S, CEA, CNRS, Université Paris-Sud, Université Paris-Saclay , Gif-sur-Yvette , France
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33
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Rotello VM. Organic chemistry meets polymers, nanoscience, therapeutics and diagnostics. Beilstein J Org Chem 2016; 12:1638-46. [PMID: 27559417 PMCID: PMC4979691 DOI: 10.3762/bjoc.12.161] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 07/18/2016] [Indexed: 12/31/2022] Open
Abstract
The atom-by-atom control provided by synthetic organic chemistry presents a means of generating new functional nanomaterials with great precision. Bringing together these two very disparate skill sets is, however, quite uncommon. This autobiographical review provides some insight into how my program evolved, as well as giving some idea of where we are going.
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Affiliation(s)
- Vincent M Rotello
- Department of Chemistry, University of Massachusetts-Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, USA
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34
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Mariam J, Sivakami S, Dongre PM. Elucidation of structural and functional properties of albumin bound to gold nanoparticles. J Biomol Struct Dyn 2016; 35:368-379. [PMID: 26821333 DOI: 10.1080/07391102.2016.1144223] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Nanoparticle-albumin complexes are being designed for targeted drug delivery and imaging. However, the changes in the functional properties of albumin due to adsorption on nanoparticles remain elusive. Thus, the objective of this work was to elucidate the structural and functional properties of human and bovine serum albumin bound to negatively charged gold nanoparticles (GNPs). Fluorescence data demonstrated static quenching of albumin by GNP with the quenching of buried as well as surface tryptophan in BSA. The binding process was enthalpy and entropy-driven in HSA and BSA, respectively. At lower concentrations of GNP there was a higher affinity for tryptophan, whereas at higher concentrations both tryptophan and tyrosine participated in the interaction. Synchronous fluorescence spectra revealed that the microenvironment of tryptophan in HSA turned more hydrophilic upon exposure to GNP. The α-helical content of albumin was unaltered by GNP. Approximately 37 and 23% reduction in specific activity of HSA and BSA was observed due to GNP binding. In presence of warfarin and ibuprofen the binding constants of albumin-GNP complexes were altered. A very interesting observation not reported so far is the retained antioxidant activity of albumin in presence of GNP i.e. we believe that GNPs did not bind to the free sulfhydryl groups of albumin. However enhanced levels of copper binding were observed. We have also highlighted the differential response in albumin due to gold and silver nanoparticles which could be attributed to differences in the charge of the nanoparticle.
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Affiliation(s)
- Jessy Mariam
- a Department of Biophysics , University of Mumbai , Vidyanagari, Santacruz (E), Mumbai 400098 , India
| | - S Sivakami
- a Department of Biophysics , University of Mumbai , Vidyanagari, Santacruz (E), Mumbai 400098 , India
| | - P M Dongre
- a Department of Biophysics , University of Mumbai , Vidyanagari, Santacruz (E), Mumbai 400098 , India
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35
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Lin Y, Chen Z, Liu XY. Using Inorganic Nanomaterials to Endow Biocatalytic Systems with Unique Features. Trends Biotechnol 2016; 34:303-315. [DOI: 10.1016/j.tibtech.2015.12.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 10/20/2015] [Accepted: 12/16/2015] [Indexed: 12/29/2022]
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36
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Mizuhara T, Moyano DF, Rotello VM. Using the Power of Organic Synthesis for Engineering the Interactions of Nanoparticles with Biological Systems. NANO TODAY 2016; 11:31-40. [PMID: 27134640 PMCID: PMC4847953 DOI: 10.1016/j.nantod.2015.11.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The surface properties of nanoparticles (NPs) dictate their interaction with the outside world. The use of precisely designed molecular ligands to control NP surface properties provides an important toolkit for modulating their interaction with biological systems, facilitating their use in biomedicine. In this review we will discuss the application of the atom-by-atom control provided by organic synthesis to the generation of engineered nanoparticles, with emphasis on how the functionalization of NPs with these "small" organic molecules (Mw < 1,000) can be used to engineer NPs for a wide range of applications.
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Affiliation(s)
- Tsukasa Mizuhara
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA
| | - Daniel F. Moyano
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA
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37
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Othman A, Karimi A, Andreescu S. Functional nanostructures for enzyme based biosensors: properties, fabrication and applications. J Mater Chem B 2016; 4:7178-7203. [DOI: 10.1039/c6tb02009g] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A review describing functional nanostructures for portable and printable enzyme biosensors. Specific physicochemical and surface properties of nanoparticles used as carriers and sensing components and their assembly are discussed with an overview of current and emerging techniques enabling large scale roll-to-roll fabrication and miniaturization. Their integration in flexible, wearable and inexpensive point-of-use devices, and implementation challenges are also provided with examples of applications.
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Affiliation(s)
- Ali Othman
- Department of Chemistry and Biomolecular Science
- Clarkson University
- Potsdam
- USA
| | - Anahita Karimi
- Department of Chemistry and Biomolecular Science
- Clarkson University
- Potsdam
- USA
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science
- Clarkson University
- Potsdam
- USA
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38
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Raman V, Suresh S, Savarimuthu PA, Raman T, Tsatsakis AM, Golokhvast KS, Vadivel VK. Synthesis of Co 3O 4 nanoparticles with block and sphere morphology, and investigation into the influence of morphology on biological toxicity. Exp Ther Med 2015; 11:553-560. [PMID: 26893646 DOI: 10.3892/etm.2015.2946] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 11/11/2015] [Indexed: 01/25/2023] Open
Abstract
In the present study, cobalt oxide (Co3O4) magnetic nanoparticles with block and sphere morphologies were synthesized using various surfactants, and the toxicity of the particles was analyzed by monitoring biomarkers of nanoparticle toxicity in zebrafish. The use of tartarate as a surfactant produced highly crystalline blocks of Co3O4 nanoparticles with pores on the sides, whereas citrate lead to the formation of nanoparticles with a spherical morphology. Co3O4 structure, crystallinity, size and morphology were studied using X-ray diffractogram and field emission scanning electron microscopy. Following an increase in nanoparticle concentration from 1 to 200 ppm, there was a corresponding increase in nitric oxide (NO) generation, induced by both types of nanoparticles [Co3O4-NP-B (block), r=0.953; Co3O4-NP-S (sphere), r=1.140]. Comparative analyses indicated that both types of nanoparticle produced significant stimulation at ≥5 ppm (P<0.05) compared with a control. Upon analyzing the effect of nanoparticle morphology on NO generation, it was observed that Co3O4-NP-S was more effective compared with Co3O4-NP-B (5 and 100 ppm, P<0.05; 200 ppm, P<0.01). Exposure to both types of nanoparticles produced reduction in liver glutathione (GSH) activity with corresponding increase in dose (Co3O4-NP-B, r=-0.359; Co3O4-NP-S, r=-0.429). However, subsequent analyses indicated that Co3O4-NP-B was more potent in inhibiting liver GSH activity compared with Co3O4-NP-S. Co3O4-NP-B proved to be toxic at 5 ppm (P<0.05) and GSH activity was almost completely inhibited at 200 ppm. A similar toxicity was observed with both types of Co3O4-NPs against brain levels of acetylcholinesterase (AChE; Co3O4-NP-B, r=-0.180; Co3O4-NP-S, r=-0.230), indicating the ability of synthesized Co3O4-NPs to cross the blood-brain barrier and produce neuronal toxicity. Co3O4-NP-B showed increased inhibition of brain AChE activity compared with Co3O4-NP-S (1,5, and 10 ppm, P<0.05; 50, 100 and 200 ppm, P<0.01). These results suggested that the morphology of nanoparticle and surface area contribute to toxicity, which may have implications for their biological application.
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Affiliation(s)
- Venkataramanan Raman
- Department of Bioengineering, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, India
| | - Shruthi Suresh
- Department of Bioengineering, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, India
| | | | - Thiagarajan Raman
- Department of Bioengineering, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, India; Department of Centre for Research on Infectious Diseases, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, India
| | - Aristides Michael Tsatsakis
- Department of Forensic Sciences and Toxicology, Medical School, University of Crete, Heraklion 71003, Greece; Scientific Educational Center of Nanotechnology, Far Eastern Federal University, Vladivostok 690990, Russian Federation
| | - Kiril Sergeevich Golokhvast
- Scientific Educational Center of Nanotechnology, Far Eastern Federal University, Vladivostok 690990, Russian Federation
| | - Vinod Kumar Vadivel
- Department of Chemistry, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, India
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Abstract
Understanding interactions between inorganic nanoparticles (NPs) is central to comprehension of self-organization processes and a wide spectrum of physical, chemical, and biological phenomena. However, quantitative description of the interparticle forces is complicated by many obstacles that are not present, or not as severe, for microsize particles (μPs). Here we analyze the sources of these difficulties and chart a course for future research. Such difficulties can be traced to the increased importance of discreteness and fluctuations around NPs (relative to μPs) and to multiscale collective effects. Although these problems can be partially overcome by modifying classical theories for colloidal interactions, such an approach fails to manage the nonadditivity of electrostatic, van der Waals, hydrophobic, and other interactions at the nanoscale. Several heuristic rules identified here can be helpful for discriminating between additive and nonadditive nanoscale systems. Further work on NP interactions would benefit from embracing NPs as strongly correlated reconfigurable systems with diverse physical elements and multiscale coupling processes, which will require new experimental and theoretical tools. Meanwhile, the similarity between the size of medium constituents and NPs makes atomic simulations of their interactions increasingly practical. Evolving experimental tools can stimulate improvement of existing force fields. New scientific opportunities for a better understanding of the electronic origin of classical interactions are converging at the scale of NPs.
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Affiliation(s)
- Carlos A Silvera Batista
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA. Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ronald G Larson
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA. Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA. Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Nicholas A Kotov
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA. Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA. Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA. Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
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40
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Ouf SA, El-Adly AA, Mohamed AAH. Inhibitory effect of silver nanoparticles mediated by atmospheric pressure air cold plasma jet against dermatophyte fungi. J Med Microbiol 2015; 64:1151-1161. [DOI: 10.1099/jmm.0.000133] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Salama A. Ouf
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawwarah, KSA
- Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Amira A. El-Adly
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawwarah, KSA
- National Institute of Laser Enhanced Science, Cairo University, Giza 12613, Egypt
| | - Abdel-Aleam H. Mohamed
- Physics Department, Faculty of Science, Taibah University, Almadinah Almunawwarah, KSA
- Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
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41
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Cha SH, Hong J, McGuffie M, Yeom B, VanEpps JS, Kotov NA. Shape-Dependent Biomimetic Inhibition of Enzyme by Nanoparticles and Their Antibacterial Activity. ACS NANO 2015; 9:9097-9105. [PMID: 26325486 DOI: 10.1021/acsnano.5b03247] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Enzyme inhibitors are ubiquitous in all living systems, and their biological inhibitory activity is strongly dependent on their molecular shape. Here, we show that small zinc oxide nanoparticles (ZnO NPs)-pyramids, plates, and spheres-possess the ability to inhibit activity of a typical enzyme β-galactosidase (GAL) in a biomimetic fashion. Enzyme inhibition by ZnO NPs is reversible and follows classical Michaelis-Menten kinetics with parameters strongly dependent on their geometry. Diverse spectroscopic, biochemical, and computational experimental data indicate that association of GAL with specific ZnO NP geometries interferes with conformational reorganization of the enzyme necessary for its catalytic activity. The strongest inhibition was observed for ZnO nanopyramids and compares favorably to that of the best natural GAL inhibitors while being resistant to proteases. Besides the fundamental significance of this biomimetic function of anisotropic NPs, their capacity to serve as degradation-resistant enzyme inhibitors is technologically attractive and is substantiated by strong shape-specific antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA), endemic for most hospitals in the world.
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Affiliation(s)
- Sang-Ho Cha
- Department of Chemical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
- Department of Chemical Engineering, Kyonggi University , Suwon 443-760, South Korea
| | - Jin Hong
- Biointerfaces Institute, University of Michigan , Ann Arbor, Michigan48109, United States
- China Pharmaceutical University , 24 Tongjiaxiang, Nanjing, Jiangsu Province 210009, China
| | - Matt McGuffie
- Biointerfaces Institute, University of Michigan , Ann Arbor, Michigan48109, United States
- Department of Emergency Medicine, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Bongjun Yeom
- Department of Chemical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
- Biointerfaces Institute, University of Michigan , Ann Arbor, Michigan48109, United States
- Department of Chemical Engineering, Myongji University , Yongin 449-728, South Korea
| | - J Scott VanEpps
- Biointerfaces Institute, University of Michigan , Ann Arbor, Michigan48109, United States
- Department of Emergency Medicine, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Nicholas A Kotov
- Department of Chemical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
- Department of Biomedical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
- Biointerfaces Institute, University of Michigan , Ann Arbor, Michigan48109, United States
- Department of Materials Science and Engineering, University of Michigan , Ann Arbor, Michigan 48198, United States
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42
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Shahabadi N, Maghsudi M, Nemati L. Design of green magneto-fluorescent γ-Fe2O3-methyldopa conjugate nanocrystal as a targeted probe for monitoring of esterase activity. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 149:215-23. [DOI: 10.1016/j.jphotobiol.2015.05.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 05/05/2015] [Accepted: 05/24/2015] [Indexed: 11/26/2022]
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43
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Das A, Chakrabarti A, Das PK. Suppression of protein aggregation by gold nanoparticles: a new way to store and transport proteins. RSC Adv 2015. [DOI: 10.1039/c4ra17026a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Suppression of protein aggregation by gold nanoparticles under physiological conditions and its dependence on the nanoparticle size.
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Affiliation(s)
- Anindita Das
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
| | - Abhijit Chakrabarti
- Crystallography & Molecular Biology Division
- Saha Institute of Nuclear Physics
- Kolkata 700064
- India
| | - Puspendu K. Das
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
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44
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Mu Q, Jiang G, Chen L, Zhou H, Fourches D, Tropsha A, Yan B. Chemical basis of interactions between engineered nanoparticles and biological systems. Chem Rev 2014; 114:7740-81. [PMID: 24927254 PMCID: PMC4578874 DOI: 10.1021/cr400295a] [Citation(s) in RCA: 364] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Qingxin Mu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, China, 250100
- Present address: Department of Pharmaceutical Chemistry, School of Pharmacy, University of Kansas, Lawrence, Kansas, 66047
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Lingxin Chen
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Hongyu Zhou
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, China, 250100
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia, 30322, U.S.A
| | | | - Alexander Tropsha
- Laboratory for Molecular Modeling, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina, 27599
| | - Bing Yan
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, China, 250100
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45
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Ekmekci Z, Saha K, Moyano DF, Tonga GY, Wang H, Mout R, Rotello VM. Probing the Protein-Nanoparticle Interface: The Role of Aromatic Substitution Pattern on Affinity. Supramol Chem 2014; 27:123-126. [PMID: 27122961 DOI: 10.1080/10610278.2014.914627] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A new class of cationic gold nanoparticles has been synthesized bearing benzyl moieties featuring -NO2 and -OMe groups to investigate the regioisomeric control of aromatic nanoparticle-protein recognition. In general, nanoparticles bearing electron withdrawing group demonstrated higher binding affinities towards green fluorescent protein (GFP) compared to electron-donating groups. Significantly, a ~7.5 and ~4.3 fold increase in binding with GFP was observed for -NO2 groups in meta- and para-position respectively, while ortho-substitution showed similar binding compared to the unsubstituted ring. These findings demonstrated that nanoparticle-protein interaction can be controlled by the tuning the spatial orientation and the relative electronic properties of the aromatic substituents. This improved biomolecular recognition provides opportunities for enhanced biosensing and functional protein delivery to the cells.
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Affiliation(s)
- Zeynep Ekmekci
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA; Department of Biomedical Engineering, Suleyman Demirel University, 32260, Cunur, Isparta, Turkey
| | - Krishnendu Saha
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Daniel F Moyano
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Gulen Yesilbag Tonga
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Hao Wang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Rubul Mout
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
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46
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Kurinomaru T, Tomita S, Hagihara Y, Shiraki K. Enzyme hyperactivation system based on a complementary charged pair of polyelectrolytes and substrates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3826-3831. [PMID: 24635224 DOI: 10.1021/la500575c] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Artificial enzyme activators are of great interest for enzyme applications in a wide range of research fields. Here, we report an enzyme hyperactivation system using polyelectrolytes that are complementary to charged substrates. The enzyme activity of α-chymotrypsin (ChT) for a cationic substrate increased 7-fold at pH 7.0 in the presence of anionic poly(acrylic acid) (PAAc) and for an anionic substrate increased 18-fold at pH 7.0 in the presence of cationic poly(allylamine) (PAA). Analysis of salt and pH effects, enzyme kinetics, dynamic light scattering (DLS), and circular dichroism (CD) indicated that the enzyme activation results from favorable electrostatic interactions between oppositely charged substrates and polyelectrolytes surrounding the enzymes. This hyperactivation system does not require laborious mutagenesis or chemical modification of enzymes and thus is relevant to a number of applications.
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Affiliation(s)
- Takaaki Kurinomaru
- Faculty of Pure and Applied Sciences, University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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47
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Bresee J, Bond CM, Worthington RJ, Smith CA, Gifford JC, Simpson CA, Carter CJ, Wang G, Hartman J, Osbaugh NA, Shoemaker RK, Melander C, Feldheim DL. Nanoscale structure-activity relationships, mode of action, and biocompatibility of gold nanoparticle antibiotics. J Am Chem Soc 2014; 136:5295-300. [PMID: 24624950 DOI: 10.1021/ja408505n] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The emergence of resistance to multiple antimicrobial agents by pathogenic bacteria has become a significant global public health threat. Multi-drug-resistant (MDR) Gram-negative bacteria have become particularly problematic, as no new classes of small-molecule antibiotics for Gram-negative bacteria have emerged in over two decades. We have developed a combinatorial screening process for identifying mixed ligand monolayer/gold nanoparticle conjugates (2.4 nm diameter) with antibiotic activity. The method previously led to the discovery of several conjugates with potent activity against the Gram-negative bacterium Escherichia coli. Here we show that these conjugates are also active against MDR E. coli and MDR Klebsiella pneumoniae. Moreover, we have shown that resistance to these nanoparticles develops significantly more slowly than to a commercial small-molecule drug. These results, combined with their relatively low toxicity to mammalian cells and biocompatibility in vivo, suggest that gold nanoparticles may be viable new candidates for the treatment of MDR Gram-negative bacterial infections.
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Affiliation(s)
- Jamee Bresee
- Department of Chemistry and Biochemistry, University of Colorado , Boulder, Colorado 80309, United States
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48
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Molecular logistics using cytocleavable polyrotaxanes for the reactivation of enzymes delivered in living cells. Sci Rep 2014; 3:2252. [PMID: 23872688 PMCID: PMC3718191 DOI: 10.1038/srep02252] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 07/05/2013] [Indexed: 11/30/2022] Open
Abstract
The intracellular delivery of enzymes is an essential methodology to extend their therapeutic application. Herein, we have developed dissociable supermolecule-enzyme polyelectrolyte complexes based on reduction-cleavable cationic polyrotaxanes (PRXs) for the reactivation of delivered enzymes. These PRXs are characterized by their supramolecular frameworks of a polymeric chain threading into cyclic molecules, which can form polyelectrolyte complexes with anionic enzymes while retaining their three dimensional structure, although their enzymatic activity is reduced. Upon the addition of a reductant, the PRXs dissociate into their constituent molecules and release the enzymes, resulting in a complete recovery of enzymatic activity. Under the intracellular environment, the PRX-based enzyme complexes showed the highest intracellular enzymatic activity and efficient activation of anticancer prodrugs to induce cytotoxic effects in comparison with the non-dissociable complexes and the commercial cell-penetrating peptide-based reagents. Thus, the intracellularly dissociable supermolecules are an attractive system for delivering therapeutic enzymes into living cells.
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49
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Hu SH, Hsieh TY, Chiang CS, Chen PJ, Chen YY, Chiu TL, Chen SY. Surfactant-free, lipo-polymersomes stabilized by iron oxide nanoparticles/polymer interlayer for synergistically targeted and magnetically guided gene delivery. Adv Healthc Mater 2014; 3:273-82. [PMID: 23868864 DOI: 10.1002/adhm.201300122] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Indexed: 11/06/2022]
Abstract
Gene therapy holds promise to suppress carcinomas but still remains far removed from clinic because of the lack of a safe and effective delivery system. Besides enhancing transfection efficiency, the difficulty in gene therapy is how to deliver sufficient gene molecules to the site of interest. Herein, the rational design of surfactant-free lipo-polymersomes (LPPs) to overcome these problems is reported, simultaneously using a lipid-stabilized double emulsion approach. The LPPs are designed to conceal the cationic lipids and plasmid DNA inside the core along with iron oxide nanoparticles/polymer interlayer and a relatively neutral lipid shell to avoid the undesired interaction during circulation, leading to high accumulation in the tumors of mice. Furthermore, guided by an external magnetic field and the folic acid (FA) that target tumors via folate receptor-mediated endocytosis on the cell surface, the vectors demonstrate a 30-40-fold increase in cell uptake. Moreover, this synergistic tumor-targeted approach can enhance a 10-fold increase in in vivo transfection efficacy by promoting the delivery of LPPs to cancer cells and facilitating the endosomal escape of gene molecules. The new insights and capabilities represent a major step in nanovector engineering for safe and efficient gene delivery.
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Affiliation(s)
- Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
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50
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Tonga GY, Saha K, Rotello VM. 25th anniversary article: interfacing nanoparticles and biology: new strategies for biomedicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:359-70. [PMID: 24105763 PMCID: PMC4067239 DOI: 10.1002/adma.201303001] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 08/02/2013] [Indexed: 05/09/2023]
Abstract
The exterior surface of nanoparticles (NPs) dictates the behavior of these systems with the outside world. Understanding the interactions of the NP surface functionality with biosystems enables the design and fabrication of effective platforms for therapeutics, diagnostics, and imaging agents. In this review, we highlight the role of chemistry in the engineering of nanomaterials, focusing on the fundamental role played by surface chemistry in controlling the interaction of NPs with proteins and cells.
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