The Journal of Experimental Medicine
Fluorescence In Vivo Endomicroscopy
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents

This Article
Right arrow Full Text (PDF, 938K)
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 Takeda, K.
Right arrow Articles by Dennert, G.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Takeda, K.
Right arrow Articles by Dennert, G.
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?

Journal of Experimental Medicine, Vol 177, 155-164, Copyright © 1993 by Rockefeller University Press


ARTICLES

The development of autoimmunity in C57BL/6 lpr mice correlates with the disappearance of natural killer type 1-positive cells: evidence for their suppressive action on bone marrow stem cell proliferation, B cell immunoglobulin secretion, and autoimmune symptoms

K Takeda and G Dennert
Department of Microbiology, University of Southern California School of Medicine, Los Angeles 90033.

F1 hybrid mice are able to acutely reject parental marrow grafts, a phenomenon that is due to natural killer type 1-positive (NK1+) cells. Circumstantial evidence had suggested that the antigenic determinants recognized by these cells are self-antigens, leading to the hypothesis that the physiological role of NK1+ cells is a downregulatory or suppressive function on bone marrow stem cell proliferation and lymphocyte function. In analyzing this hypothesis it is shown here that in young mice there is a temporal correlation between appearance of NK1+ cells in the spleen and the ability to reject allogeneic marrow or to suppress endogenous stem cell proliferation. The reverse situation exists in mice expressing the homozygous lpr gene. Whereas in young mice cells with NK1+ phenotype are demonstrable, these cells disappear with age, i.e., at the time autoimmunity develops. Concomitant with the disappearance of NK1+ cells, the ability to reject marrow grafts and to control endogenous stem cell proliferation also vanishes. The suggestion that the development of autoimmunity is causally related to the disappearance of NK1+ cells is supported by experiments in which NK1+ cells were either eliminated by antibody injection or increased by adoptively transferring cell populations enriched for NK1+ cells into lpr mice. It is shown that removal of cells enhances autoimmunity, whereas injection of NK1+ cells delays the onset of autoimmunity. In vitro assays are presented that demonstrate that suppression of autoantibody-secreting B cells is due to two NK1+ cell populations, one that expresses CD3 and causes specific suppression and one that lacks CD3 and causes nonspecific suppression.
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