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Activity of the antimicrobial peptide P34 against bovine alphaherpesvirus type 1 Ciência Rural
Castro,Clarissa Caetano de; Silva,Débora Scopel e; Costa,Géssica Aracéli; Fischer,Geferson; Vargas,Gilberto D’Avila; Brandelli,Adriano; Lima,Marcelo de; Motta,Amanda de Souza da; Hübner,Silvia de Oliveira.
ABSTRACT: Previous studies have demonstrated the antimicrobial activity of the peptide P34. In this study, the antiviral potential of P34 and the in vitro mechanism of action were investigated against bovine alphaherpesvirus type 1 (BoHV1). P34 exhibited low toxicity, a high selectivity index (22.9) and a percentage of inhibition of up to 100% in MDBK cells. Results from antiviral assays indicated that P34 did not interact with cell receptors, but it was able to inhibit the viral penetration immediately after pre-adsorption. In addition, BoHV1 growth curve in MDBK cells in the presence of P34 revealed a significant reduction in virus titer only 8h post-infection, also suggesting an important role at late stages of the replicative cycle. Virucidal effect...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antiviral; Herpesvirus; Peptide.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600451
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Antiviral activity of a Bacillus sp: P34 peptide against pathogenic viruses of domestic animals BJM
Silva,Débora Scopel e; Castro,Clarissa Caetano de; Silva,Fábio da Silva e; Sant'anna,Voltaire; Vargas,Gilberto D'Avila; Lima,Marcelo de; Fischer,Geferson; Brandelli,Adriano; Motta,Amanda de Souza da; Hübner,Silvia de Oliveira.
P34 is an antimicrobial peptide produced by a Bacillus sp. strain isolated from the intestinal contents of a fish in the Brazilian Amazon basin with reported antibacterial activity. The aim of this work was to evaluate the peptide P34 for its in vitro antiviral properties against canine adenovirus type 2 (CAV-2), canine coronavirus (CCoV), canine distemper virus (CDV), canine parvovirus type 2 (CPV-2), equine arteritis virus (EAV), equine influenza virus (EIV), feline calicivirus (FCV) and feline herpesvirus type 1 (FHV-1). The results showed that the peptide P34 exhibited antiviral activity against EAV and FHV-1. The peptide P34 inhibited the replication of EAV by 99.9% and FHV-1 by 94.4%. Virucidal activity was detected only against EAV. When P34 and EAV...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antimicrobial peptides; Antiviral activity; Herpesvirus; Equine viral arteritis.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300043
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