The Journal of Experimental Medicine
Track the topics, authors and articles important to you
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents

This Article
Right arrow Full Text
Right arrow Full Text (PDF, 768K)
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 Wu, Q.
Right arrow Articles by Fu, Y.-X.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Wu, Q.
Right arrow Articles by Fu, Y.-X.
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?
© The Rockefeller University Press, 0022-1007/1999/9/629/ $5.00
The Journal of Experimental Medicine, Volume 190, Number 5, September 6, 1999 629-638

The Requirement of Membrane Lymphotoxin for the Presence of Dendritic Cells in Lymphoid Tissues

Qiang Wua, Yang Wanga, Jing Wanga, Elizabeth O. Hedgemana, Jeffrey L. Browningb, and Yang-Xin Fua
a From the Department of Pathology, The University of Chicago, Chicago, Illinois 60637
b Department of Immunology and Inflammation, Biogen, Incorporated, Cambridge, Massachusetts 02142

Correspondence to: Yang-Xin Fu, Dept. of Pathology, MC6027, The University of Chicago, 5841 S. Maryland Ave., Chicago, IL 60637. Tel:773-702-0929 Fax:773-702-6260 E-mail:yfu{at}midway.uchicago.edu.

Although several cytokines, including tumor necrosis factor (TNF), can promote the growth of dendritic cells (DCs) in vitro, the cytokines that naturally regulate DC development and function in vivo have not been well defined. Here, we report that membrane lymphotoxin (LT), instead of TNF, regulates the migration of DCs in the spleen. LT{alpha}-/- mice, lacking membrane LT{alpha}/ß and LT{alpha}3, show markedly reduced numbers of DCs in the spleen. Unlike wild-type mice and TNF-/- mice that have densely clustered DCs in the T cell zone and around the marginal zone, splenic DCs in LT{alpha}-/- mice are randomly distributed. The reduced number of DCs in lymphoid tissues of LT{alpha}-/- mice is associated with an increased number of DCs in nonlymphoid tissues. The number of splenic DCs in LT{alpha}-/- mice is restored when additional LT-expressing cells are provided. Blocking membrane LT{alpha}/ß in wild-type mice markedly diminishes the accumulation of DCs in lymphoid tissues. These data suggest that membrane LT is an essential ligand for the presence of DCs in the spleen. Mice deficient in TNF receptor, which is the receptor for both soluble LT{alpha}3 and TNF-{alpha}3 trimers, have normal numbers of DCs. However, LTßR-/- mice show reduced numbers of DCs, similar to the mice lacking membrane LT {alpha}/ß. Taken together, these results support the notion that the signaling via LTßR by membrane LT{alpha} is required for the presence of DCs in lymphoid tissues.

Key Words: membrane lymphotoxin, tumor necrosis factor, dendritic cells, lymphotoxin receptor, migration


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