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

Published 17 March 2003. doi:10.1084/jem.20021553
This Article
Right arrow Full Text
Right arrow Full Text (PDF, 734K)
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 Bennett, L.
Right arrow Articles by Pascual, V.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Bennett, L.
Right arrow Articles by Pascual, V.
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?
© Rockefeller University Press, 0022-1007/2003/3/711 $5.00
The Journal of Experimental Medicine, Volume 197, Number 6, 711-723

Interferon and Granulopoiesis Signatures in Systemic Lupus Erythematosus Blood

Lynda Bennett1,2, A. Karolina Palucka1, Edsel Arce1,2, Victoria Cantrell1,2, Josef Borvak1, Jacques Banchereau1 and Virginia Pascual1,2

1 Baylor Institute for Immunology Research, Dallas, TX 75204
2 The University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390

Address correspondence to V. Pascual or J. Banchereau, Baylor Institute for Immunology Research, 3434 Live Oak, Dallas, TX 75204. Phone: 214-820-7450; Fax: 214-820-4813; E-mail: virginip{at}baylorhealth.edu or jacquesb{at}baylorhealth.edu

Systemic lupus erythematosus (SLE) is a prototype systemic autoimmune disease characterized by flares of high morbidity. Using oligonucleotide microarrays, we now show that active SLE can be distinguished by a remarkably homogeneous gene expression pattern with overexpression of granulopoiesis-related and interferon (IFN)-induced genes. Using the most stringent statistical analysis (Bonferroni correction), 15 genes were found highly up-regulated in SLE patients, 14 of which are targets of IFN and one, defensin DEFA-3, a major product of immature granulocytes. A more liberal correction (Benjamini and Hochberg correction) yielded 18 additional genes, 12 of which are IFN-regulated and 4 granulocyte-specific. Indeed immature neutrophils were identified in a large fraction of SLE patients white blood cells. High dose glucocorticoids, a standard treatment of disease flares, shuts down the interferon signature, further supporting the role of this cytokine in SLE. The expression of 10 genes correlated with disease activity according to the SLEDAI. The most striking correlation (P < 0.001, r = 0.55) was found with the formyl peptide receptor-like 1 protein that mediates chemotactic activities of defensins. Therefore, while the IFN signature confirms the central role of this cytokine in SLE, microarray analysis of blood cells reveals that immature granulocytes may be involved in SLE pathogenesis.

Key Words: microarray • immature granulocytes • glucocorticoid • leukocytes • autoimmunity


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?


This article has been cited by other articles:



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