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Characterization and quantification of the interaction between the NFL-TBS.40‐63 peptide and lipid nanocapsules. Int J Pharm X 2022; 4:100127. [PMID: 36177093 PMCID: PMC9513630 DOI: 10.1016/j.ijpx.2022.100127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/22/2022] Open
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2
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Sitohy M, Al-Mohammadi AR, Osman A, Abdel-Shafi S, El-Gazzar N, Hamdi S, Ismail SH, Enan G. Silver-Protein Nanocomposites as Antimicrobial Agents. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3006. [PMID: 34835774 PMCID: PMC8617916 DOI: 10.3390/nano11113006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/02/2021] [Accepted: 11/03/2021] [Indexed: 01/09/2023]
Abstract
The use of nanomaterials alone or in composites with proteins is a promising alternative to inhibit pathogenic bacteria. In this regard, this study used seed proteins from both fenugreek (Trigonella foenum-graecum L.) (FNP) and mung bean (Viga radiate) (MNP), with silver nanoparticles (Ag-NPs) and nanocomposites of either Ag-NPs plus FNP (Ag-FNP) or Ag-NPs plus MNP (Ag-MNP) as inhibitory agents against pathogenic bacteria. FNP and MNP were isolated from fenugreek seeds and mung bean seeds, respectively, and fractionated using Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis (SDS-PAGE). Both FNP and MNP were immobilized with Ag-NPs to synthesize the nanocomposites Ag-FNP and Ag-MNP, respectively. The physicochemical characteristics of Ag-NPs and their composites with proteins were studied by X-ray Diffraction (XRD), dynamic light scattering (DLS), the zeta potential, Scanning and Transmission Electron Microscopy (SEM and TEM, respectively), Atomic Force Microscopy (AFM), and the Brunauer-Emmett-Teller isotherm (BET), elucidating their structural parameters, size distribution, size charges, size surface morphology, particle shape, dimensional forms of particles, and specific surface area, respectively. The sole proteins, Ag-NPs, and their nanocomposites inhibited pathogenic Gram-positive and Gram-negative bacteria. The inhibitory activities of both nanocomposites (Ag-FNP and Ag-MNP) were more than those obtained by either Ag-NPs or proteins (FNP, MNP). Minimum inhibitory concentrations (MICs) of Ag-FNP were very low (20 and 10 µg mL-1) against Salmonellatyphimurium and Pseudomonasaerugenosa, respectively, but higher (162 µg mL-1) against E. coli and Listeriamonocytogenes. MICs of Ag-MNP were also very low (20 µg mL-1) against Staphylococcusaureus but higher (325 µg mL-1) against Listeriamonocytogenes. TEM images of Staphylococcusaureus and Salmonellatyphimurium, treated with Ag-FNP and Ag-MNP, at their MIC values, showed asymmetric, wrinkled exterior surfaces, cell deformations, cell depressions, and diminished cell numbers.
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Affiliation(s)
- Mahmoud Sitohy
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt; (M.S.); (A.O.)
| | - Abdul-Raouf Al-Mohammadi
- Department of Science, King Khalid Military Academy, P.O. Box 22140, Riyadh 11495, Saudi Arabia;
| | - Ali Osman
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt; (M.S.); (A.O.)
| | - Seham Abdel-Shafi
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (N.E.-G.); (S.H.)
| | - Nashwa El-Gazzar
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (N.E.-G.); (S.H.)
| | - Sara Hamdi
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (N.E.-G.); (S.H.)
| | - Sameh H. Ismail
- Faculty of Nanotechnology for Postgraduate, Cairo University, Zayed City 12588, Egypt;
| | - Gamal Enan
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (N.E.-G.); (S.H.)
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Diaz D, Vidal X, Sunna A, Care A. Bioengineering a Light-Responsive Encapsulin Nanoreactor: A Potential Tool for In Vitro Photodynamic Therapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:7977-7986. [PMID: 33586952 DOI: 10.1021/acsami.0c21141] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Encapsulins, a prokaryotic class of self-assembling protein nanocompartments, are being re-engineered to serve as "nanoreactors" for the augmentation or creation of key biochemical reactions. However, approaches that allow encapsulin nanoreactors to be functionally activated with spatial and temporal precision are lacking. We report the construction of a light-responsive encapsulin nanoreactor for "on demand" production of reactive oxygen species (ROS). Herein, encapsulins were loaded with the fluorescent flavoprotein mini-singlet oxygen generator (miniSOG), a biological photosensitizer that is activated by blue light to generate ROS, primarily singlet oxygen (1O2). We established that the nanocompartments stably encased miniSOG and in response to blue light were able to mediate the photoconversion of molecular oxygen into ROS. Using an in vitro model of lung cancer, we showed that ROS generated by the nanoreactor triggered photosensitized oxidation reactions which exerted a toxic effect on tumor cells, suggesting utility in photodynamic therapy. This encapsulin nanoreactor thus represents a platform for the light-controlled initiation and/or modulation of ROS-driven processes in biomedicine and biotechnology.
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Affiliation(s)
- Dennis Diaz
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Xavier Vidal
- Fraunhofer Institut für Angewandte Festkörperphysik (IAF), Tullastrasse 72, 79108 Freiburg, Germany
| | - Anwar Sunna
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
- ARC Centre of Excellence for Nanoscale BioPhotonics, Macquarie University, Sydney, NSW 2109, Australia
| | - Andrew Care
- ARC Centre of Excellence for Nanoscale BioPhotonics, Macquarie University, Sydney, NSW 2109, Australia
- ARC Centre of Excellence in Synthetic Biology, Macquarie University, Sydney, NSW 2109, Australia
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
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Yen TY, Stephen ZR, Lin G, Mu Q, Jeon M, Untoro S, Welsh P, Zhang M. Catalase-Functionalized Iron Oxide Nanoparticles Reverse Hypoxia-Induced Chemotherapeutic Resistance. Adv Healthc Mater 2019; 8:e1900826. [PMID: 31557421 PMCID: PMC6919328 DOI: 10.1002/adhm.201900826] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/15/2019] [Indexed: 11/10/2022]
Abstract
Intratumoral hypoxia is a major contributor to multiple drug resistance (MDR) in cancer, and can lead to poor prognosis of patients receiving chemotherapy. Development of an MDR-inhibitor that mitigates the hypoxic environment is crucial for cancer management and treatment. Reported is a biocompatible and biodegradable catalase-conjugated iron oxide nanoparticle (Cat-IONP) capable of converting reactive oxygen species to molecular oxygen to supply an oxygen source for the hypoxic tumor microenvironment. Cat-IONP demonstrates initial enzymatic activity comparable to free catalase while providing a nearly threefold increase in long-term enzymatic activity. It is demonstrated that Cat-IONP significantly reduces the in vitro expression of hypoxia-inducible factors at the transcription level in a breast cancer cell line. Co-treatment of Cat-IONP and paclitaxel (PTX) significantly increases the drug sensitivity of hypoxic-cultured cells, demonstrating greater than twofold and fivefold reduction in cell viability in comparison to cells treated only with 80 and 120 × 10-6 m PTX, respectively. These findings demonstrate the ability of Cat-IONP to act as an MDR-inhibitor at different biological levels, suggesting a promising strategy to combat cancer-MDR and to optimize cancer management and treatment outcomes.
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Affiliation(s)
- Tin-Yo Yen
- Department of Material Sciences and Engineering, University of Washington, Seattle, Washington, 98195
| | - Zachary R. Stephen
- Department of Material Sciences and Engineering, University of Washington, Seattle, Washington, 98195
| | - Guanyou Lin
- Department of Material Sciences and Engineering, University of Washington, Seattle, Washington, 98195
| | - Qingxin Mu
- Department of Material Sciences and Engineering, University of Washington, Seattle, Washington, 98195
| | - Mike Jeon
- Department of Material Sciences and Engineering, University of Washington, Seattle, Washington, 98195
| | - Stela Untoro
- Department of Material Sciences and Engineering, University of Washington, Seattle, Washington, 98195
| | - Parker Welsh
- Department of Material Sciences and Engineering, University of Washington, Seattle, Washington, 98195
| | - Miqin Zhang
- Department of Material Sciences and Engineering, University of Washington, Seattle, Washington, 98195
- Department of Neurological Surgery, University of Washington, Seattle Washington 98195
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Pudlarz A, Szemraj J. Nanoparticles as Carriers of Proteins, Peptides and Other Therapeutic Molecules. Open Life Sci 2018; 13:285-298. [PMID: 33817095 PMCID: PMC7874720 DOI: 10.1515/biol-2018-0035] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 05/08/2018] [Indexed: 12/12/2022] Open
Abstract
Nanoparticles have many applications both in industry and medicine. Depending upon their physical and chemical properties, they can be used as carriers of therapeutic molecules or as therapeutics. Nanoparticles are made of synthetic or natural polymers, lipids or metals. Their use allows for faster transport to the place of action, thus prolonging its presence in the body and limiting side effects. In addition, the use of such a drug delivery system protects the drug from rapid disintegration and elimination from the body. In recent years, the use of proteins and peptides as therapeutic molecules has grown significantly. Unfortunately, proteins are subject to enzymatic digestion and can cause unwanted immune response beyond therapeutic action. The use of drug carriers can minimize undesirable side effects and reduce the dose of medication needed to achieve the therapeutic effect. The current study presents the use of several selected drug delivery systems for the delivery of proteins, peptides and other therapeutic molecules.
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Affiliation(s)
- Agnieszka Pudlarz
- Department of Medical Biochemistry, Medical University of Lodz, Lodz, Poland
- E-mail:
| | - Janusz Szemraj
- Department of Medical Biochemistry, Medical University of Lodz, Lodz, Poland
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Prostate-Associated Gene 4 (PAGE4): Leveraging the Conformational Dynamics of a Dancing Protein Cloud as a Therapeutic Target. J Clin Med 2018; 7:jcm7060156. [PMID: 29914187 PMCID: PMC6025510 DOI: 10.3390/jcm7060156] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 06/13/2018] [Accepted: 06/15/2018] [Indexed: 12/24/2022] Open
Abstract
Prostate cancer (PCa) is a leading cause of mortality and morbidity globally. While genomic alterations have been identified in PCa, in contrast to some other cancers, use of such information to personalize treatment is still in its infancy. Here, we discuss how PAGE4, a protein which appears to act both as an oncogenic factor as well as a metastasis suppressor, is a novel therapeutic target for PCa. Inhibiting PAGE4 may be a viable strategy for low-risk PCa where it is highly upregulated. Conversely, PAGE4 expression is downregulated in metastatic PCa and, therefore, reinstituting its sustained expression may be a promising option to subvert or attenuate androgen-resistant PCa. Thus, fine-tuning the levels of PAGE4 may represent a novel approach for personalized medicine in PCa.
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Pudlarz AM, Czechowska E, Ranoszek-Soliwoda K, Tomaszewska E, Celichowski G, Grobelny J, Szemraj J. Immobilization of Recombinant Human Catalase on Gold and Silver Nanoparticles. Appl Biochem Biotechnol 2018; 185:717-735. [PMID: 29299755 DOI: 10.1007/s12010-017-2682-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 12/19/2017] [Indexed: 01/20/2023]
Abstract
Human catalase cDNA was cloned into a pEX-C-His vector. Purified recombinant catalase was immobilized on nanoparticles. Gold and silver nanoparticles were synthesized in a variety of sizes by chemical reduction; no agglomerates or aggregates were observed in any of the colloids during dynamic light scattering or scanning transmission electron microscopy analysis. After immobilization on gold nanoparticles, recombinant catalase activity was found to be lower than that of the same amount of enzyme in aqueous solution. However, after 10 days of storage at room temperature, the activity of catalase immobilized on gold nanoparticles (AuNPs) of 13 and 20 nm and coverage of 133% was 68 and 83% greater than catalase in aqueous solution, respectively. During 10 days of experiment, percentage activity of catalase immobilized on those gold nanoparticles was higher in comparison to CAT in aqueous solution. Catalase immobilized on silver nanoparticles did not lose activity as significantly as catalase immobilized on AuNPs. Those results confirm the ability to produce recombinant human enzymes in a bacterial expression system and its potential use while immobilized on silver or gold nanoparticles.
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Affiliation(s)
- Agnieszka Małgorzata Pudlarz
- Department of Medical Biochemistry, Faculty of Health Sciences with the Division of Nursing and Midwifery, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland.
| | - Ewa Czechowska
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland
| | - Katarzyna Ranoszek-Soliwoda
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland
| | - Emilia Tomaszewska
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland
| | - Grzegorz Celichowski
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland
| | - Jarosław Grobelny
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland
| | - Janusz Szemraj
- Department of Medical Biochemistry, Faculty of Health Sciences with the Division of Nursing and Midwifery, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
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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: 105] [Impact Index Per Article: 15.0] [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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