Rapid detection of the common avian leukosis virus subgroups by real-time loop-mediated isothermal amplification
Identifieur interne : 000164 ( Pmc/Curation ); précédent : 000163; suivant : 000165Rapid detection of the common avian leukosis virus subgroups by real-time loop-mediated isothermal amplification
Auteurs : Hao Peng [République populaire de Chine] ; Lili Qin [République populaire de Chine] ; Yuyu Bi [République populaire de Chine] ; Peikun Wang [République populaire de Chine] ; Guangzhen Zou [République populaire de Chine] ; Jun Li [République populaire de Chine] ; Yongli Yang [République populaire de Chine] ; Xingfu Zhong [République populaire de Chine] ; Ping Wei [République populaire de Chine]Source :
- Virology Journal [ 1743-422X ] ; 2015.
Abstract
Subgroups A, B, E and J are the major subgroups of avian leukosis virus (ALV) infecting chickens. ALV infection has become endemic in China and has a significant negative effect on the poultry industry. Consequently, there is an urgent need for a specific, sensitive and rapid method for diagnosis and eradication of ALV. Therefore, we developed a simple and rapid real-time loop-mediated isothermal amplification (LAMP) reaction for the timely detection of the common ALV subgroups, whereby the amplification can be obtained in 35 min under isothermal conditions at 63 °C, ability to specific, sensitive and rapid detect all the common ALV subgroups.
A set of four specific primers was designed to target the sequences of the
The results from specificity of the LAMP assay showed that only target ALVs DNA was amplified. The LAMP assay demonstrated a sensitivity of 20 copies/reaction of ALV DNA, which was 10 times higher than the conventional PCR measurement. To further evaluate the reliability of the method, the assay was evaluated with ALV DNA from a panel of 81 clinical samples suspected of ALV infection. The results verify that the LAMP method was more sensitive than the conventional PCR and virus isolation method.
In conclusion, the developed LAMP assay was a simple, inexpensive, sensitive method for the rapid detection of the most common subgroups of ALV, and it provided a useful and practical tool in the eradication program for ALV in the poultry industry.
Url:
DOI: 10.1186/s12985-015-0430-1
PubMed: 26596553
PubMed Central: 4657318
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<front><div type="abstract" xml:lang="en"><sec><title>Background</title>
<p>Subgroups A, B, E and J are the major subgroups of avian leukosis virus (ALV) infecting chickens. ALV infection has become endemic in China and has a significant negative effect on the poultry industry. Consequently, there is an urgent need for a specific, sensitive and rapid method for diagnosis and eradication of ALV. Therefore, we developed a simple and rapid real-time loop-mediated isothermal amplification (LAMP) reaction for the timely detection of the common ALV subgroups, whereby the amplification can be obtained in 35 min under isothermal conditions at 63 °C, ability to specific, sensitive and rapid detect all the common ALV subgroups.</p>
</sec>
<sec><title>Methods</title>
<p>A set of four specific primers was designed to target the sequences of the <italic>pol</italic>
gene of ALV, and the loop-mediated isothermal amplification (LAMP) assay were developed and compared with PCR and virus isolation methods.</p>
</sec>
<sec><title>Results</title>
<p>The results from specificity of the LAMP assay showed that only target ALVs DNA was amplified. The LAMP assay demonstrated a sensitivity of 20 copies/reaction of ALV DNA, which was 10 times higher than the conventional PCR measurement. To further evaluate the reliability of the method, the assay was evaluated with ALV DNA from a panel of 81 clinical samples suspected of ALV infection. The results verify that the LAMP method was more sensitive than the conventional PCR and virus isolation method.</p>
</sec>
<sec><title>Conclusion</title>
<p>In conclusion, the developed LAMP assay was a simple, inexpensive, sensitive method for the rapid detection of the most common subgroups of ALV, and it provided a useful and practical tool in the eradication program for ALV in the poultry industry.</p>
</sec>
</div>
</front>
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<pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Virol J</journal-id>
<journal-id journal-id-type="iso-abbrev">Virol. J</journal-id>
<journal-title-group><journal-title>Virology Journal</journal-title>
</journal-title-group>
<issn pub-type="epub">1743-422X</issn>
<publisher><publisher-name>BioMed Central</publisher-name>
<publisher-loc>London</publisher-loc>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">26596553</article-id>
<article-id pub-id-type="pmc">4657318</article-id>
<article-id pub-id-type="publisher-id">430</article-id>
<article-id pub-id-type="doi">10.1186/s12985-015-0430-1</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Research</subject>
</subj-group>
</article-categories>
<title-group><article-title>Rapid detection of the common avian leukosis virus subgroups by real-time loop-mediated isothermal amplification</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Peng</surname>
<given-names>Hao</given-names>
</name>
<address><email>hpeng2006@163.com</email>
</address>
<xref ref-type="aff" rid="Aff1"></xref>
<xref ref-type="aff" rid="Aff2"></xref>
</contrib>
<contrib contrib-type="author"><name><surname>Qin</surname>
<given-names>Lili</given-names>
</name>
<address><email>544864700@qq.com</email>
</address>
<xref ref-type="aff" rid="Aff1"></xref>
</contrib>
<contrib contrib-type="author"><name><surname>Bi</surname>
<given-names>Yuyu</given-names>
</name>
<address><email>452028926@qq.com</email>
</address>
<xref ref-type="aff" rid="Aff1"></xref>
</contrib>
<contrib contrib-type="author"><name><surname>Wang</surname>
<given-names>Peikun</given-names>
</name>
<address><email>976921735@qq.com</email>
</address>
<xref ref-type="aff" rid="Aff1"></xref>
</contrib>
<contrib contrib-type="author"><name><surname>Zou</surname>
<given-names>Guangzhen</given-names>
</name>
<address><email>1085847864@qq.com</email>
</address>
<xref ref-type="aff" rid="Aff1"></xref>
</contrib>
<contrib contrib-type="author"><name><surname>Li</surname>
<given-names>Jun</given-names>
</name>
<address><email>jlee9981@163.com</email>
</address>
<xref ref-type="aff" rid="Aff2"></xref>
</contrib>
<contrib contrib-type="author"><name><surname>Yang</surname>
<given-names>Yongli</given-names>
</name>
<address><email>1184397684@qq.com</email>
</address>
<xref ref-type="aff" rid="Aff1"></xref>
</contrib>
<contrib contrib-type="author"><name><surname>Zhong</surname>
<given-names>Xingfu</given-names>
</name>
<address><email>396263342@qq.com</email>
</address>
<xref ref-type="aff" rid="Aff1"></xref>
</contrib>
<contrib contrib-type="author" corresp="yes"><name><surname>Wei</surname>
<given-names>Ping</given-names>
</name>
<address><phone>86-771-3235638</phone>
<email>pingwei8@126.com</email>
</address>
<xref ref-type="aff" rid="Aff1"></xref>
</contrib>
<aff id="Aff1"><label></label>
Institute for Poultry Science and Health, Guangxi University, Nanning, 530004 China</aff>
<aff id="Aff2"><label></label>
Guangxi Key Laboratory of Animal Vaccines and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai Bei Road, Nanning, 530001 China</aff>
</contrib-group>
<pub-date pub-type="epub"><day>24</day>
<month>11</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="pmc-release"><day>24</day>
<month>11</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="collection"><year>2015</year>
</pub-date>
<volume>12</volume>
<elocation-id>195</elocation-id>
<history><date date-type="received"><day>27</day>
<month>6</month>
<year>2015</year>
</date>
<date date-type="accepted"><day>17</day>
<month>11</month>
<year>2015</year>
</date>
</history>
<permissions><copyright-statement>© Peng et al. 2015</copyright-statement>
<license license-type="OpenAccess"><license-p><bold>Open Access</bold>
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0/">http://creativecommons.org/licenses/by/4.0/</ext-link>
), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/publicdomain/zero/1.0/">http://creativecommons.org/publicdomain/zero/1.0/</ext-link>
) applies to the data made available in this article, unless otherwise stated.</license-p>
</license>
</permissions>
<abstract id="Abs1"><sec><title>Background</title>
<p>Subgroups A, B, E and J are the major subgroups of avian leukosis virus (ALV) infecting chickens. ALV infection has become endemic in China and has a significant negative effect on the poultry industry. Consequently, there is an urgent need for a specific, sensitive and rapid method for diagnosis and eradication of ALV. Therefore, we developed a simple and rapid real-time loop-mediated isothermal amplification (LAMP) reaction for the timely detection of the common ALV subgroups, whereby the amplification can be obtained in 35 min under isothermal conditions at 63 °C, ability to specific, sensitive and rapid detect all the common ALV subgroups.</p>
</sec>
<sec><title>Methods</title>
<p>A set of four specific primers was designed to target the sequences of the <italic>pol</italic>
gene of ALV, and the loop-mediated isothermal amplification (LAMP) assay were developed and compared with PCR and virus isolation methods.</p>
</sec>
<sec><title>Results</title>
<p>The results from specificity of the LAMP assay showed that only target ALVs DNA was amplified. The LAMP assay demonstrated a sensitivity of 20 copies/reaction of ALV DNA, which was 10 times higher than the conventional PCR measurement. To further evaluate the reliability of the method, the assay was evaluated with ALV DNA from a panel of 81 clinical samples suspected of ALV infection. The results verify that the LAMP method was more sensitive than the conventional PCR and virus isolation method.</p>
</sec>
<sec><title>Conclusion</title>
<p>In conclusion, the developed LAMP assay was a simple, inexpensive, sensitive method for the rapid detection of the most common subgroups of ALV, and it provided a useful and practical tool in the eradication program for ALV in the poultry industry.</p>
</sec>
</abstract>
<kwd-group xml:lang="en"><title>Keywords</title>
<kwd>ALV</kwd>
<kwd>LAMP</kwd>
<kwd>Rapid detection</kwd>
</kwd-group>
<custom-meta-group><custom-meta><meta-name>issue-copyright-statement</meta-name>
<meta-value>© The Author(s) 2015</meta-value>
</custom-meta>
</custom-meta-group>
</article-meta>
</front>
</pmc>
</record>
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