Indoleamine 2,3-dioxygenase-expressing dendritic cells are involved in the generation of CD4+CD25+ regulatory T cells in Peyer's patches in an orally tolerized, collagen-induced arthritis mouse model
2008

Role of IDO in Regulatory T Cell Generation in Arthritis

Sample size: 40 publication Evidence: moderate

Author Information

Author(s): Park Min-Jung, Min So-Youn, Park Kyung-Su, Cho Young-Gyu, Cho Mi-La, Jung Young-Ok, Park Hyun-Sil, Chang Soog-Hee, Cho Seok Goo, Min Jun-Ki, Park Sung-Hwan, Kim Ho-Youn

Primary Institution: The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea

Hypothesis

Are IDO-expressing dendritic cells involved in generating regulatory T cells during oral tolerance in a mouse model of arthritis?

Conclusion

The study suggests that IDO-expressing dendritic cells are crucial for inducing oral tolerance and may offer a new treatment approach for autoimmune arthritis.

Supporting Evidence

  • IDO-expressing dendritic cells were found to suppress T-cell proliferation.
  • The arthritis index was significantly lower in tolerized mice compared to CIA mice.
  • Higher levels of IDO expression were observed in dendritic cells from tolerized mice.

Takeaway

The study found that certain immune cells help calm down the body's response to arthritis by using a special protein, which could help in treating arthritis.

Methodology

DBA/1 mice were fed type II collagen and then immunized; dendritic cells were analyzed for IDO expression and their effects on T cell proliferation.

Participant Demographics

Male DBA/1J mice aged 6-8 weeks

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/ar2361

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