Losing B cell identity
- 21 February 2008
- Vol. 30 (3), 203-207
- https://doi.org/10.1002/bies.20725
Abstract
The transcription factor Pax5 is essential for the initial commitment of hematopoietic progenitors to the B cell lineage. Recently, our understanding of the lineage commitment process has been extended with the finding that Pax5 is also continuously required throughout B cell development to reinforce commitment, as inactivation of Pax5 in mature B cells results in their de‐differentiation to a progenitor stage that is capable of multi‐lineage potential.1 The reliance of B cell identity on a single gene is not without its problems as the loss of Pax5 results in B cell malignancies in mouse models and mutation in human PAX5 is the most‐common genetic lesion in acute lymphoblastic leukemia. BioEssays 30:203–207, 2008.Keywords
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