Lipoic Acid-Coated Silver Nanoparticles: Biosafety Potential on the Vascular Microenvironment and Antibacterial Properties
Purpose: To study and compare the antibacterial properties and the potential cytotoxic effects of commercially available uncoated silver nanoparticles (AgNPs) with lipoic acid coated silver nanoparticles (AgNPsLA) developed by our group. The antibacterial, cytotoxic, and hemolytic properties of thos...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-01-01
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| Series: | Frontiers in Pharmacology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphar.2021.733743/full |
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| author | Justyna Hajtuch Maria Jose Santos-Martinez Michal Wojcik Ewelina Tomczyk Maciej Jaskiewicz Wojciech Kamysz Magdalena Narajczyk Iwona Inkielewicz-Stepniak |
| author_facet | Justyna Hajtuch Maria Jose Santos-Martinez Michal Wojcik Ewelina Tomczyk Maciej Jaskiewicz Wojciech Kamysz Magdalena Narajczyk Iwona Inkielewicz-Stepniak |
| author_sort | Justyna Hajtuch |
| collection | DOAJ |
| description | Purpose: To study and compare the antibacterial properties and the potential cytotoxic effects of commercially available uncoated silver nanoparticles (AgNPs) with lipoic acid coated silver nanoparticles (AgNPsLA) developed by our group. The antibacterial, cytotoxic, and hemolytic properties of those NPs were assessed with the main objective of investigating if AgNPsLA could maintain their antibacterial properties while improving their biosafety profile over uncoated AgNPs within the blood vessel’s microenvironment.Methods: Comercially available uncoated 2.6 nm AgNPs and 2.5 nm AgNPsLA synthesized and characterized as previously described by our group, were used in this study. Antimicrobial activity was assessed on a wide range of pathogens and expressed by minimal inhibitory concentrations (MIC). Assessment of cytotoxicity was carried out on human umbilical vein endothelial cells (HUVEC) using an MTT test. Detection of reactive oxygen species, cell apoptosis/necrosis in HUVEC, and measurement of mitochondrial destabilization in HUVEC and platelets were performed by flow cytometry. The potential harmful effect of nanoparticles on red blood cells (RBCs) was investigated measuring hemoglobin and LDH released after exposure to NPs. Transmission electron microscopy was also used to determine if AgNPs and AgNPsLA could induce any ultrastructural changes on HUVEC cells and Staphylococcus aureus bacteria.Results: AgNPs and AgNPsLA had antimicrobial properties against pathogens associated with catheter-related bloodstream infections. AgNPs, in contrast to AgNPsLA, induced ROS production and apoptosis in HUVEC, ultrastructural changes in HUVEC and S. aureus, depolarization of mitochondrial membrane in HUVEC and platelets, and also hemolysis.Conclusion: AgNPsLA synthesized by our group have antimicrobial activity and a better biosafety profile than uncoated AgNPs of similar size. Those observations are of critical importance for the future in vivo investigations and the potential application of AgNPsLA in medical devices for human use. |
| first_indexed | 2024-12-20T09:15:36Z |
| format | Article |
| id | doaj.art-59b7204fe547463ea16ddb4859df85b5 |
| institution | Directory Open Access Journal |
| issn | 1663-9812 |
| language | English |
| last_indexed | 2024-12-20T09:15:36Z |
| publishDate | 2022-01-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Pharmacology |
| spelling | doaj.art-59b7204fe547463ea16ddb4859df85b52022-12-21T19:45:25ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122022-01-011210.3389/fphar.2021.733743733743Lipoic Acid-Coated Silver Nanoparticles: Biosafety Potential on the Vascular Microenvironment and Antibacterial PropertiesJustyna Hajtuch0Maria Jose Santos-Martinez1Michal Wojcik2Ewelina Tomczyk3Maciej Jaskiewicz4Wojciech Kamysz5Magdalena Narajczyk6Iwona Inkielewicz-Stepniak7Department of Pharmaceutical Pathophysiology, Medical University of Gdansk, Gdansk, PolandSchool of Pharmacy and Pharmaceutical Sciences and School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, IrelandDepartment of Organic Chemistry and Chemical Technology, Faculty of Chemistry, University of Warsaw, Warsaw, PolandDepartment of Organic Chemistry and Chemical Technology, Faculty of Chemistry, University of Warsaw, Warsaw, PolandDepartment of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, PolandDepartment of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, PolandLaboratory of Electron Microscopy, Faculty of Biology, University of Gdansk, Gdansk, PolandDepartment of Pharmaceutical Pathophysiology, Medical University of Gdansk, Gdansk, PolandPurpose: To study and compare the antibacterial properties and the potential cytotoxic effects of commercially available uncoated silver nanoparticles (AgNPs) with lipoic acid coated silver nanoparticles (AgNPsLA) developed by our group. The antibacterial, cytotoxic, and hemolytic properties of those NPs were assessed with the main objective of investigating if AgNPsLA could maintain their antibacterial properties while improving their biosafety profile over uncoated AgNPs within the blood vessel’s microenvironment.Methods: Comercially available uncoated 2.6 nm AgNPs and 2.5 nm AgNPsLA synthesized and characterized as previously described by our group, were used in this study. Antimicrobial activity was assessed on a wide range of pathogens and expressed by minimal inhibitory concentrations (MIC). Assessment of cytotoxicity was carried out on human umbilical vein endothelial cells (HUVEC) using an MTT test. Detection of reactive oxygen species, cell apoptosis/necrosis in HUVEC, and measurement of mitochondrial destabilization in HUVEC and platelets were performed by flow cytometry. The potential harmful effect of nanoparticles on red blood cells (RBCs) was investigated measuring hemoglobin and LDH released after exposure to NPs. Transmission electron microscopy was also used to determine if AgNPs and AgNPsLA could induce any ultrastructural changes on HUVEC cells and Staphylococcus aureus bacteria.Results: AgNPs and AgNPsLA had antimicrobial properties against pathogens associated with catheter-related bloodstream infections. AgNPs, in contrast to AgNPsLA, induced ROS production and apoptosis in HUVEC, ultrastructural changes in HUVEC and S. aureus, depolarization of mitochondrial membrane in HUVEC and platelets, and also hemolysis.Conclusion: AgNPsLA synthesized by our group have antimicrobial activity and a better biosafety profile than uncoated AgNPs of similar size. Those observations are of critical importance for the future in vivo investigations and the potential application of AgNPsLA in medical devices for human use.https://www.frontiersin.org/articles/10.3389/fphar.2021.733743/fullsilver nanoparticlesbiomateriallipoic acid coatingcytotoxicitybiocompatibilityendothelial cells |
| spellingShingle | Justyna Hajtuch Maria Jose Santos-Martinez Michal Wojcik Ewelina Tomczyk Maciej Jaskiewicz Wojciech Kamysz Magdalena Narajczyk Iwona Inkielewicz-Stepniak Lipoic Acid-Coated Silver Nanoparticles: Biosafety Potential on the Vascular Microenvironment and Antibacterial Properties Frontiers in Pharmacology silver nanoparticles biomaterial lipoic acid coating cytotoxicity biocompatibility endothelial cells |
| title | Lipoic Acid-Coated Silver Nanoparticles: Biosafety Potential on the Vascular Microenvironment and Antibacterial Properties |
| title_full | Lipoic Acid-Coated Silver Nanoparticles: Biosafety Potential on the Vascular Microenvironment and Antibacterial Properties |
| title_fullStr | Lipoic Acid-Coated Silver Nanoparticles: Biosafety Potential on the Vascular Microenvironment and Antibacterial Properties |
| title_full_unstemmed | Lipoic Acid-Coated Silver Nanoparticles: Biosafety Potential on the Vascular Microenvironment and Antibacterial Properties |
| title_short | Lipoic Acid-Coated Silver Nanoparticles: Biosafety Potential on the Vascular Microenvironment and Antibacterial Properties |
| title_sort | lipoic acid coated silver nanoparticles biosafety potential on the vascular microenvironment and antibacterial properties |
| topic | silver nanoparticles biomaterial lipoic acid coating cytotoxicity biocompatibility endothelial cells |
| url | https://www.frontiersin.org/articles/10.3389/fphar.2021.733743/full |
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