ArticleInflammation research : official journal of the European Histamine Research Society ... [et al.]2013
Oral antigens induce rheumatoid arthritis-like inflammation in a rat model.
Article in Inflammation research : official journal of the European Histamine Research Society ... [et al.], 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 2 citations in OpenAlex.
- Aggravation of collagen-induced arthritis by orally administered Porphyromonas gingivalis through modulation of the gut microbiota and gut immune system.Scientific reports · 2017Article
- Microbiome and mucosal inflammation as extra-articular triggers for rheumatoid arthritis and autoimmunity.Current opinion in rheumatology · 2014Review
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9 authors at 3 institutions in 2 countries.
Funding
Abstract
BACKGROUND AND
aimsThe pathogenesis of rheumatoid arthritis (RA) is to be further elucidated. The present study aims to investigate the role of oral antigen in the induction of RA-like inflammation in the articular joints of rats.
methodsAn RA animal model was developed by gavage-feeding with antigen and aspirin, and lipopolysaccharide intraperitoneal injection. The gut epithelial barrier function was assessed by the absorption of mannitol and lactose. The absorption of the specific antigen was observed by the immune fluorescent method. The frequency of antigen specific CD4+ T cells in the peripheral system was assessed by flow cytometry. The inflammation in the ankle joints was evaluated by light microscopy and immunohistochemistry.
resultsRats treated with aspirin showed intestinal barrier dysfunction; high contents of the specific antigen were absorbed into the lamina propria. The antigen specific CD4+ T cells were detected in the spleen that could be activated by exposure to the specific antigen as well as the extracts of joint tissue. High levels of proinflammatory cytokines were detected in the sera. Antigen specific immune complexes were localized in the ankle joints. Heavy extravasation was observed in the synovial cavity. The histology showed an inflammatory feature in the ankle joints.
conclusionsOral antigen can induce RA-like inflammation in the articular joints under certain environment such as gut epithelial barrier dysfunction.
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