The Journal of Experimental Medicine
ThymUS '08
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow PPT slides of all figures
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 Malissen, M.
Right arrow Articles by DiSanto, J. P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Malissen, M.
Right arrow Articles by DiSanto, J. P.
Social Bookmarking
 Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

J. Exp. Med.
© The Rockefeller University Press
0022-1007/97/10/1277/09 $2.00
Volume 186, Number 8, October 20, 1997 1277-1285

The Common Cytokine Receptor gamma  Chain Controls Survival of gamma /delta T Cells

By Marie Malissen,* Pablo Pereira,Dagger David J. Gerber,§ Bernard Malissen,* and James P. DiSantopar

From the * Centre d'Immunologie Institut National de la Santé et de la Recherche Médicale-Centre National de la Recherche Scientifique de Marseille Luminy, Case 906, 13288 Marseille Cedex 9, France; Dagger  Unité d'Immunologie, Centre National de la Recherche Scientifique Unité Recherche Associée 1961, Institut Pasteur, 75724 Paris, France; § Center for Cancer Research, Massachusetts Institute of Technology, 02139 Cambridge, Massachusetts; and par  INSERM U429, Hôpital Necker-Enfants Malades, 75743 Paris, France

We have investigated the role of common gamma  chain (gamma c)-signaling pathways for the development of T cell receptor for antigen (TCR)-gamma /delta T cells. TCR-gamma /delta -bearing cells were absent from the adult thymus, spleen, and skin of gamma c-deficient (gamma c-) mice, whereas small numbers of thymocytes expressing low levels of TCR-gamma /delta were detected during fetal life. Recent reports have suggested that signaling via interleukin (IL)-7 plays a major role in facilitating TCR-gamma /delta development through induction of V-J (variable-joining) rearrangements at the TCR-gamma locus. In contrast, we detected clearly TCR-gamma rearrangements in fetal thymi from gamma c- mice (which fail to signal in response to IL-7) and reduced TCR-gamma rearrangements in adult gamma c thymi. No gross defects in TCR-delta or TCR-beta rearrangements were observed in gamma c- mice of any age. Introduction of productively rearranged TCR Vgamma 1 or TCR Vgamma 1/Vdelta 6 transgenes onto mice bearing the gamma c mutation did not restore TCR-gamma /delta development to normal levels suggesting that gamma c-dependent pathways provide additional signals to developing gamma /delta T cells other than for the recombination process. Bcl-2 levels in transgenic thymocytes from gamma c- mice were dramatically reduced compared to gamma c+ transgenic littermates. We favor the concept that gamma c-dependent receptors are required for the maintenance of TCR-gamma /delta cells and contribute to the completion of TCR-gamma rearrangements primarily by promoting survival of cells committed to the TCR-gamma /delta lineage.


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 Reddit Reddit   Add to Technorati Technorati    What's this?


This article has been cited by other articles:



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