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Cited by 238

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Transforming growth factor induced FoxP3+ regulatory T cells suppress Th1 mediated experimental colitis

Open access
Fantini, M C·2006·Gut

Abstract

BACKGROUND AND AIMS: The imbalance between effector and regulatory T cells plays a central role in the pathogenesis of inflammatory bowel diseases. In addition to the thymus, CD4+CD25+ regulatory T cells can be induced in the periphery from a population of CD25- T cells by treatment with transforming growth factor beta (TGF-beta). Here, we analysed the in vivo function of TGF-beta induced regulatory T (Ti-Treg) cells in experimental colitis. METHODS: Ti-Treg cells were generated in cell culture in the presence or absence of TGF-beta and tested for their regulatory potential in experimental colitis using the CD4+CD62L+ T cell transfer model. RESULTS: Ti-Treg cells significantly suppressed Th1 mediated colitis on CD4+CD62L+ T cell transfer in vivo, as shown by high resolution endoscopy, histology, immunohistochemistry, and cytokine analysis. Further analysis of in vivo and in vitro expanded Ti-Treg cells showed that exogenous interleukin 2 (IL-2) was crucial for survival and expansion of these cells. CONCLUSION: Our data suggest that regulatory Ti-Treg cells expand by TGF-beta and exogenous IL-2 derived from effector T cells at the site of inflammation. In addition to Tr1 and thymic CD4+CD25+ T cells, peripheral Ti-Treg cells emerge as a class of regulatory T cells with therapeutic potential in T cell mediated chronic intestinal inflammation.

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Metadata

Authors
Fantini, M. C.
Venue
Gut
Publisher
BMJ
Published
2006-05-01
Volume
55
Issue
5
Pages
671-680
ISSN
0017-5749 (ISSN-L)
OpenAlex
W2037284653
Cited by
238
References
1
FWCI
7.51
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Transforming growth factor induced FoxP3+ regulatory T cells suppress Th1 mediated experimental colitis. https://app.cochat.ai/papers/10.1136/gut.2005.072801
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Fantini, M. C. (2006). Transforming growth factor induced FoxP3+ regulatory T cells suppress Th1 mediated experimental colitis. Gut. https://doi.org/10.1136/gut.2005.072801

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