The Journal of Experimental Medicine
Torrey Pines Biolabs
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents

Published online 16 January 2001.
This Article
Right arrow Full Text
Right arrow Full Text (PDF, 362K)
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 Dhodapkar, M. V.
Right arrow Articles by Bhardwaj, N.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Dhodapkar, M. V.
Right arrow Articles by Bhardwaj, N.
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, 0022-1007/2001/1/233/ $5.00
The Journal of Experimental Medicine, Volume 193, Number 2, January 15, 2001 233-238


Brief Definitive Report

Antigen-specific Inhibition of Effector T Cell Function in Humans after Injection of Immature Dendritic Cells

Madhav V. Dhodapkara, Ralph M. Steinmana, Joseph Krasovskya, Christian Munza, and Nina Bhardwaja
a Laboratory of Cellular Physiology and Immunology, The Rockefeller University, New York, New York 10021

Correspondence to: Madhav V. Dhodapkar, Laboratory of Cellular Physiology and Immunology, The Rockefeller University, 1230 York Ave. #176, New York, NY 10021. Tel:212-327-8110 Fax:212-327-8875 E-mail:dhodapm{at}rockvax.rockefeller.edu.

Immunostimulatory properties of dendritic cells (DCs) are linked to their maturation state. Injection of mature DCs rapidly enhances antigen-specific CD4+ and CD8+ T cell immunity in humans. Here we describe the immune response to a single injection of immature DCs pulsed with influenza matrix peptide (MP) and keyhole limpet hemocyanin (KLH) in two healthy subjects. In contrast to prior findings using mature DCs, injection of immature DCs in both subjects led to the specific inhibition of MP-specific CD8+ T cell effector function in freshly isolated T cells and the appearance of MP-specific interleukin 10–producing cells. When pre- and postimmunization T cells were boosted in culture, there were greater numbers of MP-specific major histocompatibility complex tetramer-binding cells after immunization, but these had reduced interferon {gamma} production and lacked killer activity. These data demonstrate the feasibility of antigen-specific inhibition of effector T cell function in vivo in humans and urge caution with the use of immature DCs when trying to enhance tumor or microbial immunity.

Key Words: dendritic cells, maturation, tolerance, CD8+ T cells, immunization


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