Immunohistochemistry and polymerase chain reaction for the detection of Lawsonia intracellularis in porcine intestinal tissues with proliferative enteropathy
- Authors
- Kim, J; Choi, C; Cho, WS; Chae, C
- Issue Date
- Jul-2000
- Publisher
- JAPAN SOC VET SCI
- Keywords
- immunohistochemistry; Lawsonia intracellularis; polymerase chain reaction
- Citation
- JOURNAL OF VETERINARY MEDICAL SCIENCE, v.62, no.7, pp 771 - 773
- Pages
- 3
- Journal Title
- JOURNAL OF VETERINARY MEDICAL SCIENCE
- Volume
- 62
- Number
- 7
- Start Page
- 771
- End Page
- 773
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/68771
- DOI
- 10.1292/jvms.62.771
- ISSN
- 0916-7250
- Abstract
- Detection method of Lawsonia intracellularis was studied in formalin-fixed paraffin-embedded intestinal tissues from 5 naturally infected pigs by immunohistochemistry with a monoclonal antibody against outer membrane protein of L. intracellularis. Warthin-Starry silver stain revealed clusters of argyrophilic, slightly curved rod-shaped organisms in the apical cytoplasm of enterocytes. Immunohistochemical staining with a L. intracellularis-specific monoclonal antibody confirmed the presence of the organism in the apical cytoplasm of hyperplastic enterocytes. The presence of L. intracellularis in the ileum of pig with proliferative enteropathy was confirmed by polymerase chain reaction (PCR) further on the basis of amplification of 319 base pair products specific for porcine L. intracellularis chromosomal DNA. Immunohistochemistry and PCR may be a complementary method to confirm the diagnosis of L. intracellularis infection in pigs.
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