doi: 10.1038/ni927.
Epub 2003 Apr 28.
Bcl11b is required for differentiation and survival of alphabeta T lymphocytes
Affiliations
- PMID: 12717433
- DOI: 10.1038/ni927
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Bcl11b is required for differentiation and survival of alphabeta T lymphocytes
Nat Immunol.
2003 Jun.
Abstract
The gene Bcl11b, which encodes zinc finger proteins, and its paralog, Bcl11a, are associated with immune-system malignancies. We have generated Bcl11b-deficient mice that show a block at the CD4-CD8- double-negative stage of thymocyte development without any impairment in cells of B- or gammadelta T cell lineages. The Bcl11b-/- thymocytes showed unsuccessful recombination of V(beta) to D(beta) and lacked the pre-T cell receptor (TCR) complex on the cell surface, owing to the absence of Tcrb mRNA expression. In addition, we saw profound apoptosis in the thymus of neonatal Bcl11b-/- mice. These results suggest that Bcl11b is a key regulator of both differentiation and survival during thymocyte development.
Comment in
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Bcl11: sibling rivalry in lymphoid development.Nat Immunol. 2003 Jun;4(6):512-4. doi: 10.1038/ni0603-512. Nat Immunol. 2003. PMID: 12774073 No abstract available.
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