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Immunological Investigations
A Journal of Molecular and Cellular Immunology
Volume 43, 2014 - Issue 7
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Research Article

Gene Expression in B-1 Cells from Lupus-Prone Mice

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Pages 675-692 | Published online: 20 Jun 2014
 

Abstract

New Zealand Black X New Zealand White F1 [(NZB/NZW)F1] mice develop an autoimmune condition with similarities to human systemic lupus erythematosus (SLE). In this study, we demonstrate that B-1 cells, which have previously been reported to be involved in several autoimmune diseases, have altered gene expression in these mice. RNA was extracted from purified B-1 cells of disease-free C57BL/6 mice and lupus-prone (NZB/NZW)F1 mice. Gene expression was analysed using DNA microarray techniques and validated by real time reverse transcriptase polymerase chain reaction (RT-PCR). In (NZB/NZW)F1 mice, some genes had altered expression patterns compared to disease-free controls. Specifically, the upregulation of Ifitm1, Pvrl2 and Ifi202b and downregulation of Trp53bp1 mRNA were observed in (NZB/NZW)F1 mice. These genes are known to be associated with autoimmune diseases. This pattern of gene expression in B-1 cells could understanding of the pathogenesis of SLE. Thus, it is reasonable to hypothesise that the altered gene expression observed in B-1 cells in our experimental model is important for SLE prognosis and therapy, and these implications are discussed herein.

Acknowledgments

We are grateful to Dr. Luiz C. Godoy of Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA, for his insightful contributions for the manuscript. This work was supported by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP).

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