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Scussel R, Feuser PE, Luiz GP, Galvani NC, Fagundes MÍ, Gonçalves Dal-Bó A, Hermes de Araújo PH, Coelho EA, Chávez-Olórtegui C, Machado-de-Ávila RA. Peptide-Integrated Superparamagnetic Nanoparticles for the Identification of Epitopes from SARS-CoV-2 Spike and Nucleocapsid Proteins. ACS APPLIED NANO MATERIALS 2022; 5:642-653. [PMID: 35098045 PMCID: PMC8790823 DOI: 10.1021/acsanm.1c03399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 01/05/2022] [Indexed: 05/04/2023]
Abstract
The COVID-19 pandemic, caused by the fast transmission and spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is currently considered a serious health problem, requiring an effective strategy to contain SARS-CoV-2 dissemination. For this purpose, epitopes of the SARS-CoV-2 spike (S) and sucleocapsid (N) proteins were identified by bioinformatics tools, and peptides that mimic these epitopes were chemically synthesized and then conjugated to superparamagnetic nanoparticles (SPMNPs). Three peptides from S protein and three from N protein were used as antigens in a conventional enzyme-linked immunosorbent assay (ELISA) against serum samples from COVID-19-positive patients, or from healthy donors, collected before the pandemic. Three peptides were effective as antigens in conventional peptide-based ELISA, achieving 100% sensitivity and specificity, with high accuracy. The best-performing peptides, p2pS, p1pN, and p3pN, were associated with superparamagnetic nanoparticles (SPMNPs) and were used to perform nanomagnetic peptide-based ELISA. The p2pS-SPMNP conjugate presented 100% sensitivity and specificity and excellent accuracy (area under the curve (AUC) = 1.0). However, p1pN and p3pN peptides, when conjugated to SPMNPs, did not preserve the capacity to differentiate positive sera from negative sera in all tested samples, yet both presented sensitivity and specificity above 80% and high accuracy, AUC > 0.9. We obtained three peptides as advantageous antigens for serodiagnosis. These peptides, especially p2pS, showed promising results in a nanomagnetic peptide-based ELISA and may be suitable as a precoated antigen for commercial purposes, which would accelerate the diagnosis process.
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Affiliation(s)
- Rahisa Scussel
- Programa
de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Universitário, 88806-000 Criciúma, Santa Catarina, Brazil
| | - Paulo Emilio Feuser
- Programa
de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Universitário, 88806-000 Criciúma, Santa Catarina, Brazil
- Programa
de Pós-Graduação em Engenharia Química,
Department of Engenharia Química, Universidade Federal de Santa Catarina, Cidade Universitária, Trindade, 88010-970 Florianópolis, Santa Catarina, Brazil
| | - Gabriel Paulino Luiz
- Programa
de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Universitário, 88806-000 Criciúma, Santa Catarina, Brazil
| | - Nathalia Coral Galvani
- Programa
de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Universitário, 88806-000 Criciúma, Santa Catarina, Brazil
- Programa
de Pós-Graduação em Ciências da Saúde:
Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, 30130-100 Belo
Horizonte, Minas Gerais, Brazil
| | - Mírian Ívens Fagundes
- Programa
de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Universitário, 88806-000 Criciúma, Santa Catarina, Brazil
| | - Alexandre Gonçalves Dal-Bó
- Programa
de Pós-Graduação em Ciência e Engenharia
de Materiais, Universidade do Extremo Sul
Catarinense, Sangão, 88806-000 Criciúma, Santa Catarina, Brazil
| | - Pedro Henrique Hermes de Araújo
- Programa
de Pós-Graduação em Engenharia Química,
Department of Engenharia Química, Universidade Federal de Santa Catarina, Cidade Universitária, Trindade, 88010-970 Florianópolis, Santa Catarina, Brazil
| | - Eduardo Antônio
Ferraz Coelho
- Programa
de Pós-Graduação em Ciências da Saúde:
Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, 30130-100 Belo
Horizonte, Minas Gerais, Brazil
| | - Carlos Chávez-Olórtegui
- Programa
de Pós-Graduação em Bioquímica e Imunologia,
Departamento de Bioquímica e Imunologia, Instituto de Ciências
Biológicas, Universidade Federal
de Minas Gerais, Pampulha, 31270-901 Belo Horizonte, Minas
Gerais, Brazil
| | - Ricardo Andrez Machado-de-Ávila
- Programa
de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Universitário, 88806-000 Criciúma, Santa Catarina, Brazil
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Feuser PE, Cardoso MDM, Galvani NC, Zaccaron RP, Venturini LM, Rigo FK, Machado-de-Ávila RA, Silveira PCL, Sayer C, Hermes de Araújo PH. Evaluation of the in vivo acute toxicity of poly(thioether-ester) and superparamagnetic poly(thioether-ester) nanoparticles obtained by thiol-ene miniemulsion polymerization. J Biomed Mater Res B Appl Biomater 2021; 110:702-711. [PMID: 34619018 DOI: 10.1002/jbm.b.34949] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 09/09/2021] [Accepted: 09/22/2021] [Indexed: 12/28/2022]
Abstract
Poly(thioether-ester) (PTEe) nanoparticles obtained by thiol-ene polymerization have received attention of many researchers due to several advantages, including, biocompatibility and biodegradability. The search for new nanomaterials requires toxicity studies to assess potential toxic effects of their administration. Therefore, the aim of this study was to evaluate the in vivo acute toxicity of PTEe and poly(thioether-ester)-coated magnetic nanoparticles prepared by thiol-ene polymerization in miniemulsion. These nanoparticles presented a mean size of approximately 120 nm, spherical morphology, and negative surface charge. Doses of 40 mg/kg were administered intraperitoneally to Swiss mice and nociceptive, behavioral and biochemical parameters were investigated in five different organs. None of the nanoparticles led to any alterations in the nociceptive and behavioral responses. Biochemical alterations were observed in liver, decreasing the sulfhydryl and glutathione (GSH) levels, suggesting the dependence of the GSH metabolism in the elimination of the nanoparticles. In general, both nanoparticle types did not cause disturbances in biochemical parameters analyzed in others organs. These results suggest that both nanoparticle types did not induce acute toxicity to the different organs evaluated, reinforcing the biocompatibility of PTEe nanoparticles synthetized by thiol-ene polymerization.
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Affiliation(s)
- Paulo Emilio Feuser
- Department of Chemical Engineering and Food Engineering, Universidade Federal de Santa Catarina, Florianopolis, Brazil.,Postgraduate Program in Health Science, Universidade do Extremo Sul Catarinense, Santa Catarina, Brazil
| | - Mariana de Melo Cardoso
- Department of Chemical Engineering and Food Engineering, Universidade Federal de Santa Catarina, Florianopolis, Brazil
| | - Nathalia Coral Galvani
- Department of Chemical Engineering and Food Engineering, Universidade Federal de Santa Catarina, Florianopolis, Brazil
| | - Rubya Pereira Zaccaron
- Postgraduate Program in Health Science, Universidade do Extremo Sul Catarinense, Santa Catarina, Brazil
| | - Ligia Milanez Venturini
- Postgraduate Program in Health Science, Universidade do Extremo Sul Catarinense, Santa Catarina, Brazil
| | - Flavia Karine Rigo
- Postgraduate Program in Health Science, Universidade do Extremo Sul Catarinense, Santa Catarina, Brazil
| | | | - Paulo Cesar Lock Silveira
- Postgraduate Program in Health Science, Universidade do Extremo Sul Catarinense, Santa Catarina, Brazil
| | - Claudia Sayer
- Department of Chemical Engineering and Food Engineering, Universidade Federal de Santa Catarina, Florianopolis, Brazil
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Dos Santos PCM, Feuser PE, Cordeiro AP, Scussel R, Abel JDS, Machado-de-Ávila RA, Rocha MEM, Sayer C, Hermes de Araújo PH. Antitumor activity associated with hyperthermia and 4-nitrochalcone loaded in superparamagnetic poly(thioether-ester) nanoparticles. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:1895-1911. [PMID: 32552460 DOI: 10.1080/09205063.2020.1782699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The combination of hyperthermia and chemotherapy has a potential synergic effect in antitumor activity. The development of new biocompatible and biodegradable polymers to simultaneously encapsulate magnetic nanoparticles (MNPs) and antitumoral drugs offer new cancer treatment opportunities. Here, biodegradable and biocompatible poly(thioether-ester) (PTEe) was used to encapsulate MNPs and 4-nitrochalcone (4NC) using miniemulsification and solvent evaporation. The resulting hybrid particles (MNPs-4NC-PTEe) had nanometer-scale diameters, spherical morphology, negative surface charge, high encapsulation efficiency, and superparamagnetic properties. Results showed that 4NC release occurred through diffusion. Free 4NC and MNPs + 4NC-PTEe did not have any cytotoxic effect on erythrocytes and mouse embryonic fibroblast (NIH3T3) cells. 4NC antitumor activity was verified on human cervical cancer (HeLa) and melanoma (B16F10) cells. Cellular uptake of MNPs + 4NC-PTEe nanoparticles was higher in HeLa cells compared to B16F10 and NIH3T3 cells. The hyperthermia application (115 kHz-500 Oe) potentiated the 4NC effects on HeLa and B16F10 cells when MNPs + 4NC-PTEe nanoparticles were used, indicating more effective antitumor activity. We concluded that the use of MNPs + 4NC-PTEe nanoparticles associated with hyperthermia is a promising form of treatment for some types of cancers.
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Affiliation(s)
| | - Paulo Emilio Feuser
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Arthur Poester Cordeiro
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Rahisa Scussel
- Postgraduate Program in Health Science, University of Southern Santa Catarina, Criciúma, Brazil
| | - Jessica da Silva Abel
- Postgraduate Program in Health Science, University of Southern Santa Catarina, Criciúma, Brazil
| | | | | | - Claudia Sayer
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianopolis, Brazil
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