Development and use of a multiplex polymerase chain reaction assay based on Apx toxin genes for genotyping of Actinobacillus pleuropneumoniae isolates

Nabin Rayamajhi, SungJae Shin, Gyun Kang Sang, Yong Lee Deog, Min Ahn Jeong, Sang Yoo Han

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Actinobacillus pleuropneumoniae (A. pleuropneumoniae) is the etiological agent of a porcine pleuropneumonia that threatens the global swine industry. The major pathogenic toxins of A. pleuropneumoniae include ApxI, ApxII, ApxIII, and ApxIV, which are serotype or serovar specific. Several techniques have been developed for the identification and typing of A. pleuropneumoniae. Serological assays are used to identify and serotype A. pleuropneumoniae, but factors such as cross-reactivity limit their specificity. Labor, time, and the requirement for specific antibodies are also drawbacks of these assays. Multistep polymerase chain reaction (PCR) techniques based on apx genes have been reported for the identification and typing of A. pleuropneumoniae. This study developed multiplex PCR for the identification and genotyping of A. pleuropneumoniae based on apx genes. This multiplex PCR technique was successful in differentiating 11 of 15 reference serotypes. Five different primer sets were used to amplify the 4 apx genes from each serotype in a single-step reaction. The multiplex PCR reported in this study was further used in genotyping 51 field isolates of A. pleuropneumoniae from different regions of Korea. The concomitant amplification of all 4 apx genes makes multiplex PCR more specific and convenient for the diagnosis and genotyping of A. pleuropneumoniae.

Original languageEnglish
Pages (from-to)359-362
Number of pages4
JournalJournal of Veterinary Diagnostic Investigation
Volume17
Issue number4
DOIs
Publication statusPublished - 2005 Jan 1

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Actinobacillus pleuropneumoniae
Multiplex Polymerase Chain Reaction
genotyping
toxins
polymerase chain reaction
assays
serotypes
Genes
genes
Swine
Pleuropneumonia
pork industry
etiological agents
Korea
cross reaction
Korean Peninsula
Industry
labor
methodology
Serogroup

All Science Journal Classification (ASJC) codes

  • veterinary(all)

Cite this

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abstract = "Actinobacillus pleuropneumoniae (A. pleuropneumoniae) is the etiological agent of a porcine pleuropneumonia that threatens the global swine industry. The major pathogenic toxins of A. pleuropneumoniae include ApxI, ApxII, ApxIII, and ApxIV, which are serotype or serovar specific. Several techniques have been developed for the identification and typing of A. pleuropneumoniae. Serological assays are used to identify and serotype A. pleuropneumoniae, but factors such as cross-reactivity limit their specificity. Labor, time, and the requirement for specific antibodies are also drawbacks of these assays. Multistep polymerase chain reaction (PCR) techniques based on apx genes have been reported for the identification and typing of A. pleuropneumoniae. This study developed multiplex PCR for the identification and genotyping of A. pleuropneumoniae based on apx genes. This multiplex PCR technique was successful in differentiating 11 of 15 reference serotypes. Five different primer sets were used to amplify the 4 apx genes from each serotype in a single-step reaction. The multiplex PCR reported in this study was further used in genotyping 51 field isolates of A. pleuropneumoniae from different regions of Korea. The concomitant amplification of all 4 apx genes makes multiplex PCR more specific and convenient for the diagnosis and genotyping of A. pleuropneumoniae.",
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Development and use of a multiplex polymerase chain reaction assay based on Apx toxin genes for genotyping of Actinobacillus pleuropneumoniae isolates. / Rayamajhi, Nabin; Shin, SungJae; Sang, Gyun Kang; Deog, Yong Lee; Jeong, Min Ahn; Han, Sang Yoo.

In: Journal of Veterinary Diagnostic Investigation, Vol. 17, No. 4, 01.01.2005, p. 359-362.

Research output: Contribution to journalArticle

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