New perspective on dextran sodium sulfate colitis: antigen-specific T cell development during intestinal inflammation.
CD4+ T cell responses against oral antigens can develop in inflammatory bowel disease (IBD) patients, which may modulate disease. Dextran sodium sulfate (DSS) colitis is commonly used to study IBD, however, it is not considered the best model in which to study T cell involvement in intestinal disease. Our aim was to determine if antigen-specific T cells could be induced during DSS colitis and if they could be detected after disease resolution. To induce antigen-specific T cells, the tracking antigen, ovalbumin (OVA), was administered orally during colitis initiation. Disease severity was monitored, and the antigen-reactivity of CD4+ T cells examined using CD69 expression. While OVA-directed, CD4+ Foxp3+ regulatory T cells could be detected in the spleens of both OVA-treated control and DSS mice, OVA-reactive, CD4+ Foxp3-T cells were only found in the OVA and DSS-treated mice. These results indicate that during DSS colitis T cells develop that are specific against oral antigens, and they are found systemically after colitis resolution. This gives added depth and utility to the DSS model as well as a way to track T cells that are primed against luminal antigens.
Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands. m.e.morgan@uu.nl
Mary E
ME
Morgan
Bin
B
Zheng
Pim J
PJ
Koelink
Hendrick J G
HJ
van de Kant
Lizette C J M
LC
Haazen
Manon
M
van Roest
Johan
J
Garssen
Gert
G
Folkerts
Aletta D
AD
Kraneveld
D000284:Administration, Oral; D019264:Adoptive Transfer; D000818:Animals; D000941:Antigens / Q000276:immunology*; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology* / Q000473:pathology / Q000637:transplantation; D003092:Colitis / Q000139:chemically induced / Q000276:immunology* / Q000473:pathology; D003106:Colon / Q000276:immunology* / Q000473:pathology; D016264:Dextran Sulfate; D004195:Disease Models, Animal; D005260:Female; D007156:Immunologic Memory; D007249:Inflammation / Q000139:chemically induced / Q000276:immunology / Q000473:pathology; D007413:Intestinal Mucosa / Q000276:immunology* / Q000473:pathology; D051379:Mice; D008810:Mice, Inbred C57BL; D010047:Ovalbumin / Q000008:administration & dosage; D013154:Spleen / Q000276:immunology / Q000473:pathology
D000941:Antigens; D010047:Ovalbumin; D016264:Dextran Sulfate