Development and evaluation of an immunochromatographic strip test based on the recombinant UL51 protein for detecting antibody against duck enteritis virus

<p>Abstract</p> <p>Background</p> <p>Duck enteritis virus (DEV) infection causes substantial economic losses to the worldwide duck-producing areas. The monitoring of DEV-specific antibodies is a key to evaluate the effect of DEV vaccine and develop rational immunization...

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Main Authors: Sun Tao, Jia Renyong, Sun Kunfeng, Wang Mingshu, Cheng Anchun, Shen Chanjuan, Zhang Na, Zhu Dekang, Luo Qihui, Zhou Yi, Chen Xiaoyue
Format: Article
Language:English
Published: BMC 2010-10-01
Series:Virology Journal
Online Access:http://www.virologyj.com/content/7/1/268
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author Sun Tao
Jia Renyong
Sun Kunfeng
Wang Mingshu
Cheng Anchun
Shen Chanjuan
Zhang Na
Zhu Dekang
Luo Qihui
Zhou Yi
Chen Xiaoyue
author_facet Sun Tao
Jia Renyong
Sun Kunfeng
Wang Mingshu
Cheng Anchun
Shen Chanjuan
Zhang Na
Zhu Dekang
Luo Qihui
Zhou Yi
Chen Xiaoyue
author_sort Sun Tao
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Duck enteritis virus (DEV) infection causes substantial economic losses to the worldwide duck-producing areas. The monitoring of DEV-specific antibodies is a key to evaluate the effect of DEV vaccine and develop rational immunization programs. Thus, in this study, an immunochromatographic strip (ICS) test was developed for detecting DEV serum antibodies.</p> <p>Results</p> <p>The ICS test is based on membrane chromatography, and uses both the purified recombinant UL51 protein conjugated with colloidal gold and goat anti-rabbit IgG conjugated with colloidal gold as tracers, the purified recombinant UL51 protein as the capture reagent at the test line, and rabbit IgG as the capture reagent at the control line. The specificity of the ICS was evaluated by sera against DEV, Duck hepatitis virus (DHV), Riemerella anatipestifer (RA), Duck E. coli, Muscovy duck parvovirus (MPV), or Duck Influenza viruses (DIV). Only sera against DEV showed the strong positive results. In order to determine the sensitivity of the ICS, anti-DEV serum diluted serially was tested, and the minimum detection limit of 1:128 was obtained. The ICS components, which are provided in a sealed package, require no refrigeration and are stable for 12 months. To evaluate the effect of the ICS, 110 duck serum samples collected from several non-immune duck flocks were simultaneously tested by the ICS test, enzyme-linked immunosorbent assay (ELISA) and neutralization test (NT). The results showed that the sensitivity of the ICS test was almost consistent with ELISA and much higher than NT, has low cost, and is rapid (15 min) and easy to perform with no requirement of specialized equipment, reagent or technicians.</p> <p>Conclusions</p> <p>In this work, we successfully developed a simple and rapid ICS test for detecting DEV serum antibodies for the first time. The ICS test was high specific and sensitive for the rapid detection of anti-DEV antibodies, and has great potential to be used for the serological surveillance of DEV infection in the field.</p>
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spelling doaj.art-f3f001740c67462f8911ed400b1c092e2022-12-21T19:59:39ZengBMCVirology Journal1743-422X2010-10-017126810.1186/1743-422X-7-268Development and evaluation of an immunochromatographic strip test based on the recombinant UL51 protein for detecting antibody against duck enteritis virusSun TaoJia RenyongSun KunfengWang MingshuCheng AnchunShen ChanjuanZhang NaZhu DekangLuo QihuiZhou YiChen Xiaoyue<p>Abstract</p> <p>Background</p> <p>Duck enteritis virus (DEV) infection causes substantial economic losses to the worldwide duck-producing areas. The monitoring of DEV-specific antibodies is a key to evaluate the effect of DEV vaccine and develop rational immunization programs. Thus, in this study, an immunochromatographic strip (ICS) test was developed for detecting DEV serum antibodies.</p> <p>Results</p> <p>The ICS test is based on membrane chromatography, and uses both the purified recombinant UL51 protein conjugated with colloidal gold and goat anti-rabbit IgG conjugated with colloidal gold as tracers, the purified recombinant UL51 protein as the capture reagent at the test line, and rabbit IgG as the capture reagent at the control line. The specificity of the ICS was evaluated by sera against DEV, Duck hepatitis virus (DHV), Riemerella anatipestifer (RA), Duck E. coli, Muscovy duck parvovirus (MPV), or Duck Influenza viruses (DIV). Only sera against DEV showed the strong positive results. In order to determine the sensitivity of the ICS, anti-DEV serum diluted serially was tested, and the minimum detection limit of 1:128 was obtained. The ICS components, which are provided in a sealed package, require no refrigeration and are stable for 12 months. To evaluate the effect of the ICS, 110 duck serum samples collected from several non-immune duck flocks were simultaneously tested by the ICS test, enzyme-linked immunosorbent assay (ELISA) and neutralization test (NT). The results showed that the sensitivity of the ICS test was almost consistent with ELISA and much higher than NT, has low cost, and is rapid (15 min) and easy to perform with no requirement of specialized equipment, reagent or technicians.</p> <p>Conclusions</p> <p>In this work, we successfully developed a simple and rapid ICS test for detecting DEV serum antibodies for the first time. The ICS test was high specific and sensitive for the rapid detection of anti-DEV antibodies, and has great potential to be used for the serological surveillance of DEV infection in the field.</p>http://www.virologyj.com/content/7/1/268
spellingShingle Sun Tao
Jia Renyong
Sun Kunfeng
Wang Mingshu
Cheng Anchun
Shen Chanjuan
Zhang Na
Zhu Dekang
Luo Qihui
Zhou Yi
Chen Xiaoyue
Development and evaluation of an immunochromatographic strip test based on the recombinant UL51 protein for detecting antibody against duck enteritis virus
Virology Journal
title Development and evaluation of an immunochromatographic strip test based on the recombinant UL51 protein for detecting antibody against duck enteritis virus
title_full Development and evaluation of an immunochromatographic strip test based on the recombinant UL51 protein for detecting antibody against duck enteritis virus
title_fullStr Development and evaluation of an immunochromatographic strip test based on the recombinant UL51 protein for detecting antibody against duck enteritis virus
title_full_unstemmed Development and evaluation of an immunochromatographic strip test based on the recombinant UL51 protein for detecting antibody against duck enteritis virus
title_short Development and evaluation of an immunochromatographic strip test based on the recombinant UL51 protein for detecting antibody against duck enteritis virus
title_sort development and evaluation of an immunochromatographic strip test based on the recombinant ul51 protein for detecting antibody against duck enteritis virus
url http://www.virologyj.com/content/7/1/268
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