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Immunol Cell Biol. 2008 Jan;86(1):47-53. Epub 2007 Nov 13.

The regulation of the B-cell gene expression programme by Pax5.

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1
Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.

Abstract

The activity of the transcription factor paired box gene 5 (Pax5) is essential for many aspects of B lymphopoiesis including the initial commitment to the lineage, immunoglobulin rearrangement, pre-B cell receptor signalling and maintaining cell identity in mature B cells. Deregulated or reduced Pax5 activity has also been implicated in B-cell malignancies both in human disease and mouse models. Candidate gene approaches and biochemical analysis have revealed that Pax5 regulates B lymphopoiesis by concurrently activating B cell-specific gene expression as well as repressing the expression of genes, many of which are associated with non-B cell lineages. These studies have been recently complemented with more exhaustive microarray studies, which have identified and validated a large panel of Pax5 target genes. These target genes reveal a gene regulatory network, with Pax5 at its centre that controls the B-cell gene expression programme.

PMID:
17998914
DOI:
10.1038/sj.icb.7100134
[Indexed for MEDLINE]
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