The Journal of Experimental Medicine
VeriKine-HS Human IFN-Beta
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents

Published online
doi:10.1084/jem.20070602
The Journal of Experimental Medicine, Vol. 204, No. 8, 1775-1785
The Rockefeller University Press, 0022-1007 $30.00
© Sun et al.
This Article
Right arrow Full Text
Right arrow Full Text (PDF, 3552K)
Right arrow PPT slides of all figures
Right arrow Supplemental Material Index
Right arrow Alert me when this article is cited
Right arrow Citation Map
Services
Right arrow Email this article
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new content in the JEM
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Sun, C.-M.
Right arrow Articles by Belkaid, Y.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Sun, C.-M.
Right arrow Articles by Belkaid, Y.
Related Collections
Right arrowRelated Article
Social Bookmarking
 Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Facebook   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

ARTICLE

Small intestine lamina propria dendritic cells promote de novo generation of Foxp3 T reg cells via retinoic acid

Cheng-Ming Sun1, Jason A. Hall1,2, Rebecca B. Blank1, Nicolas Bouladoux1, Mohamed Oukka3, J. Rodrigo Mora4, and Yasmine Belkaid1

1 Mucosal Immunology Unit, Laboratory of Parasitic Diseases, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
2 Immunology Graduate Group, University of Pennsylvania, Philadelphia, PA 19104
3 Center for Neurological Diseases, Brigham Women's Hospital, Harvard's Medical School, Cambridge, MA 02139
4 Gastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114

CORRESPONDENCE Yasmine Belkaid:ybelkaid{at}niaid.nih.gov

To maintain immune homeostasis, the intestinal immune system has evolved redundant regulatory strategies. In this regard, the gut is home to a large number of regulatory T (T reg) cells, including the Foxp3+ T reg cell. Therefore, we hypothesized that the gut environment preferentially supports extrathymic T reg cell development. We show that peripheral conversion of CD4+ T cells to T reg cells occurs primarily in gut-associated lymphoid tissue (GALT) after oral exposure to antigen and in a lymphopenic environment. Dendritic cells (DCs) purified from the lamina propria (Lp; LpDCs) of the small intestine were found to promote a high level of T reg cell conversion relative to lymphoid organ–derived DCs. This enhanced conversion by LpDCs was dependent on TGF-ß and retinoic acid (RA), which is a vitamin A metabolite highly expressed in GALT. Together, these data demonstrate that the intestinal immune system has evolved a self-contained strategy to promote T reg cell neoconversion.


Abbreviations used: AAD, amino-actinomycin D; eGFP, enhanced GFP; IEL, intraepithelial lymphocyte; ingLN, inguinal LN; Lp, lamina propria; GALT, gut-associated lymphoid tissue; MFI, mean fluorescence intensity; MLN, mesenteric LN; NIAID, National Institute for Allergy and Infectious Diseases; pLN, peripheral LN; PP, Peyer's patch; RA, retinoic acid; RAG, recombination-activating gene; subLN, submandibular LN; SpDC, spleen DC.

C.-M. Sun, J. Hall, and R.B. Blank contributed equally to this paper.


Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Facebook Facebook   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?

Related Article

Oral tolerance: is it all retinoic acid?
Harald von Boehmer
J. Exp. Med. 2007 204: 1737-1739. [Abstract] [Full Text] [PDF]



This article has been cited by other articles:



  Home | Help | Feedback | Subscriptions | Archive | Search
TABLE OF CONTENTS