tetano
Editor, Senior Moderator
Biosens Bioelectron. 2014 Feb 26;59C:6-13. doi: 10.1016/j.bios.2014.02.037. [Epub ahead of print]
Direct electrochemical detection of PB1-F2 protein of influenza A virus in infected cells.
Miodek A1, Sauriat-Dorizon H1, Chevalier C2, Delmas B2, Vidic J3, Korri-Youssoufi H4.
Author information
Abstract
Influenza virus represents a major concern of human health and animal production. PB1-F2 is a small proapoptotic protein supposed to contribute to the virulence of influenza A virus (IAV). However, the molecular mechanism of action of PB1-F2 is still unclear.PB1-F2 expression and behavior during the viral cycle is difficult to follow with classical biochemical methods. In this work we have developed an electrochemical biosensor based on immuno-detection system for quantification of PB1-F2 protein in infected cell. The electrochemical immunosensor was based on conducting copolypyrrole integrating ferrocenyl group as redox marker for enhancing signal detection. A specific anti-PB1-F2 monoclonal antibody was immobilized on the copolypyrrole layer via biotin-streptavidin system. We demonstrate that this electrochemical system sensitively detect purified recombinant PB1-F2 over a wide range of concentrations from 5 nM to 1.5?M. The high sensor sensitivity allowed the detection of PB1-F2 in lysates of infected cells confirming that PB1-F2 is expressed in early stages of viral cycle. The immunosensor developed shows enhanced performances for the evaluation of PB1-F2 protein concentration in biological samples and could be applied for studying of PB1-F2 during influenza virus infection.
Copyright ? 2014 Elsevier B.V. All rights reserved.
KEYWORDS:
Biosensor, Electrochemical, Ferrocene, Immunosensor, Influenza virus, Polypyrrole
PMID:
24686222
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/24686222
Direct electrochemical detection of PB1-F2 protein of influenza A virus in infected cells.
Miodek A1, Sauriat-Dorizon H1, Chevalier C2, Delmas B2, Vidic J3, Korri-Youssoufi H4.
Author information
Abstract
Influenza virus represents a major concern of human health and animal production. PB1-F2 is a small proapoptotic protein supposed to contribute to the virulence of influenza A virus (IAV). However, the molecular mechanism of action of PB1-F2 is still unclear.PB1-F2 expression and behavior during the viral cycle is difficult to follow with classical biochemical methods. In this work we have developed an electrochemical biosensor based on immuno-detection system for quantification of PB1-F2 protein in infected cell. The electrochemical immunosensor was based on conducting copolypyrrole integrating ferrocenyl group as redox marker for enhancing signal detection. A specific anti-PB1-F2 monoclonal antibody was immobilized on the copolypyrrole layer via biotin-streptavidin system. We demonstrate that this electrochemical system sensitively detect purified recombinant PB1-F2 over a wide range of concentrations from 5 nM to 1.5?M. The high sensor sensitivity allowed the detection of PB1-F2 in lysates of infected cells confirming that PB1-F2 is expressed in early stages of viral cycle. The immunosensor developed shows enhanced performances for the evaluation of PB1-F2 protein concentration in biological samples and could be applied for studying of PB1-F2 during influenza virus infection.
Copyright ? 2014 Elsevier B.V. All rights reserved.
KEYWORDS:
Biosensor, Electrochemical, Ferrocene, Immunosensor, Influenza virus, Polypyrrole
PMID:
24686222
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/24686222