Acute toxicity evaluation of phosphatidylcholine nanoliposomes containing nisin in Caenorhabditis elegans
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/262210 |
Resumo: | Liposomes are among the most studied nanostructures. They are effective carriers of active substances both in the clinical field, such as delivering genes and drugs, and in the food industry, such as promoting the controlled release of bioactive substances, including food preservatives. However, toxicological screenings must be performed to ensure the safety of nanoformulations. In this study, the nematode Caenorhabditis elegans was used as an alternative model to investigate the potential in vivo toxicity of nanoliposomes encapsulating the antimicrobial peptide nisin. The effects of liposomes containing nisin, control liposomes, and free nisin were evaluated through the survival rate, lethal dose (LD50), nematode development rate, and oxidative stress status by performing mutant strain, TBARS, and ROS analyses. Due to its low toxicity, it was not possible to experimentally determine the LD50 of liposomes. The survival rates of control liposomes and nisin-loaded liposomes were 94.3 and 73.6%, respectively. The LD50 of free nisin was calculated as 0.239 mg mL−1. Free nisin at a concentration of 0.2 mg mL−1 significantly affected the development of C. elegans, which was 25% smaller than the control and liposome-treated samples. A significant increase in ROS levels was observed after exposure to the highest concentrations of liposomes and free nisin, coinciding with a significant increase in catalase levels. The treatments induced lipid peroxidation as evaluated by TBARS assay. Liposome encapsulation reduces the deleterious effect on C. elegans and can be considered a nontoxic delivery system for nisin. |
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Boelter, Juliana FerreiraGarcia, Solange CristinaGöethel, GabrielaCharão, Mariele FeifferMelo, Lívia Marchi deBrandelli, Adriano2023-07-15T03:27:09Z20231420-3049http://hdl.handle.net/10183/262210001168196Liposomes are among the most studied nanostructures. They are effective carriers of active substances both in the clinical field, such as delivering genes and drugs, and in the food industry, such as promoting the controlled release of bioactive substances, including food preservatives. However, toxicological screenings must be performed to ensure the safety of nanoformulations. In this study, the nematode Caenorhabditis elegans was used as an alternative model to investigate the potential in vivo toxicity of nanoliposomes encapsulating the antimicrobial peptide nisin. The effects of liposomes containing nisin, control liposomes, and free nisin were evaluated through the survival rate, lethal dose (LD50), nematode development rate, and oxidative stress status by performing mutant strain, TBARS, and ROS analyses. Due to its low toxicity, it was not possible to experimentally determine the LD50 of liposomes. The survival rates of control liposomes and nisin-loaded liposomes were 94.3 and 73.6%, respectively. The LD50 of free nisin was calculated as 0.239 mg mL−1. Free nisin at a concentration of 0.2 mg mL−1 significantly affected the development of C. elegans, which was 25% smaller than the control and liposome-treated samples. A significant increase in ROS levels was observed after exposure to the highest concentrations of liposomes and free nisin, coinciding with a significant increase in catalase levels. The treatments induced lipid peroxidation as evaluated by TBARS assay. Liposome encapsulation reduces the deleterious effect on C. elegans and can be considered a nontoxic delivery system for nisin.application/pdfengMolecules. Basel, Suíça. Vol. 28, no. 2 (Jan. 2023), 563, 13 p.NanotecnologiaNanotoxicologiaPeptídeo antimicrobianoLipossomosConservantes de alimentosNanoencapsulationNanotoxicologyAntimicrobial peptideLiposomesFood preservativeAcute toxicity evaluation of phosphatidylcholine nanoliposomes containing nisin in Caenorhabditis elegansEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001168196.pdf.txt001168196.pdf.txtExtracted Texttext/plain47292http://www.lume.ufrgs.br/bitstream/10183/262210/2/001168196.pdf.txt4e35118116cfccdf5bc32c4f003ee2f7MD52ORIGINAL001168196.pdfTexto completo (inglês)application/pdf9068954http://www.lume.ufrgs.br/bitstream/10183/262210/1/001168196.pdfed9888f47b671158587a5e3de5405f95MD5110183/2622102023-07-17 03:26:46.719117oai:www.lume.ufrgs.br:10183/262210Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-17T06:26:46Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Acute toxicity evaluation of phosphatidylcholine nanoliposomes containing nisin in Caenorhabditis elegans |
title |
Acute toxicity evaluation of phosphatidylcholine nanoliposomes containing nisin in Caenorhabditis elegans |
spellingShingle |
Acute toxicity evaluation of phosphatidylcholine nanoliposomes containing nisin in Caenorhabditis elegans Boelter, Juliana Ferreira Nanotecnologia Nanotoxicologia Peptídeo antimicrobiano Lipossomos Conservantes de alimentos Nanoencapsulation Nanotoxicology Antimicrobial peptide Liposomes Food preservative |
title_short |
Acute toxicity evaluation of phosphatidylcholine nanoliposomes containing nisin in Caenorhabditis elegans |
title_full |
Acute toxicity evaluation of phosphatidylcholine nanoliposomes containing nisin in Caenorhabditis elegans |
title_fullStr |
Acute toxicity evaluation of phosphatidylcholine nanoliposomes containing nisin in Caenorhabditis elegans |
title_full_unstemmed |
Acute toxicity evaluation of phosphatidylcholine nanoliposomes containing nisin in Caenorhabditis elegans |
title_sort |
Acute toxicity evaluation of phosphatidylcholine nanoliposomes containing nisin in Caenorhabditis elegans |
author |
Boelter, Juliana Ferreira |
author_facet |
Boelter, Juliana Ferreira Garcia, Solange Cristina Göethel, Gabriela Charão, Mariele Feiffer Melo, Lívia Marchi de Brandelli, Adriano |
author_role |
author |
author2 |
Garcia, Solange Cristina Göethel, Gabriela Charão, Mariele Feiffer Melo, Lívia Marchi de Brandelli, Adriano |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Boelter, Juliana Ferreira Garcia, Solange Cristina Göethel, Gabriela Charão, Mariele Feiffer Melo, Lívia Marchi de Brandelli, Adriano |
dc.subject.por.fl_str_mv |
Nanotecnologia Nanotoxicologia Peptídeo antimicrobiano Lipossomos Conservantes de alimentos |
topic |
Nanotecnologia Nanotoxicologia Peptídeo antimicrobiano Lipossomos Conservantes de alimentos Nanoencapsulation Nanotoxicology Antimicrobial peptide Liposomes Food preservative |
dc.subject.eng.fl_str_mv |
Nanoencapsulation Nanotoxicology Antimicrobial peptide Liposomes Food preservative |
description |
Liposomes are among the most studied nanostructures. They are effective carriers of active substances both in the clinical field, such as delivering genes and drugs, and in the food industry, such as promoting the controlled release of bioactive substances, including food preservatives. However, toxicological screenings must be performed to ensure the safety of nanoformulations. In this study, the nematode Caenorhabditis elegans was used as an alternative model to investigate the potential in vivo toxicity of nanoliposomes encapsulating the antimicrobial peptide nisin. The effects of liposomes containing nisin, control liposomes, and free nisin were evaluated through the survival rate, lethal dose (LD50), nematode development rate, and oxidative stress status by performing mutant strain, TBARS, and ROS analyses. Due to its low toxicity, it was not possible to experimentally determine the LD50 of liposomes. The survival rates of control liposomes and nisin-loaded liposomes were 94.3 and 73.6%, respectively. The LD50 of free nisin was calculated as 0.239 mg mL−1. Free nisin at a concentration of 0.2 mg mL−1 significantly affected the development of C. elegans, which was 25% smaller than the control and liposome-treated samples. A significant increase in ROS levels was observed after exposure to the highest concentrations of liposomes and free nisin, coinciding with a significant increase in catalase levels. The treatments induced lipid peroxidation as evaluated by TBARS assay. Liposome encapsulation reduces the deleterious effect on C. elegans and can be considered a nontoxic delivery system for nisin. |
publishDate |
2023 |
dc.date.accessioned.fl_str_mv |
2023-07-15T03:27:09Z |
dc.date.issued.fl_str_mv |
2023 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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1420-3049 |
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001168196 |
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http://hdl.handle.net/10183/262210 |
dc.language.iso.fl_str_mv |
eng |
language |
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dc.relation.ispartof.pt_BR.fl_str_mv |
Molecules. Basel, Suíça. Vol. 28, no. 2 (Jan. 2023), 563, 13 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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