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Experimental infection of mice with tightly coiled spiral bacteria ("Candidatus Helicobacter suis") originating from the pig stomach
Cited 11 time in
Web of Science
Cited 13 time in Scopus
- Authors
- Issue Date
- 2003-01
- Publisher
- W. B. Saunders Co., Ltd.
- Citation
- Journal of Comparative Pathology, Vol.129 No.2-3, pp.154-160
- Abstract
- Mice (n = 34) were inoculated orally with a gastric homogenate from a pig infected with tightly coiled spiral bacteria (TCSB). In mice killed in pairs at 16 intervals up to 108 weeks post-inoculation (pi), TCSB were invariably found, mainly in the mucosal surface, gastric pits, intercellular spaces, cytoplasm of surface epithelial cells, and lumina of gastric glands. Histopathologically, infiltration of lymphocytes and plasma cells was seen from 8 weeks pi onwards, gradually increasing as infection progressed. From 64 weeks pi onwards, the formation of large follicles was observed in the lamina propria and submucosa, together with severe necrosis of surface epithelial cells. Glandular epithelial cells in the fundic mucosa were markedly dysplastic and intruded through the basement membrane into the submucosal layer. Common antigenicity between TCSB and Helicobacter pylori was demonstrated by Western blotting, ELISA, and immunohistochemistry. The sequence of the 16S rDNA fragment of 374 bp showed 100% homology with the 16S rRNA gene of "Candidatus Helicobacter suis". Experimental infection of the gastric mucosa of mice with TCSB was closely associated with chronic gastritis and dysplastic lesions. (C) 2003 Elsevier Ltd. All rights reserved.
- ISSN
- 0021-9975
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