Journal
NATURE IMMUNOLOGY
Volume 8, Issue 5, Pages 463-470Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ni1454
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- MRC [G9900989] Funding Source: UKRI
- Medical Research Council [G9900989] Funding Source: researchfish
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The transcription factor Pax5 is essential for commitment of lymphoid progenitors to the B lymphocyte lineage. Pax5 fulfils a dual role by repressing B lineage 'inappropriate' genes and simultaneously activating B lineage-specific genes. This transcriptional reprogramming restricts the broad signaling capacity of uncommitted progenitors to the B cell pathway, regulates cell adhesion and migration, induces V-H-DJ(H) recombination, facilitates (pre-) B cell receptor signaling and promotes development to the mature B cell stage. Conditional Pax5 inactivation in early and late B lymphocytes revealed an essential role for Pax5 in controlling the identity and function of B cells throughout B lymphopoiesis. PAX5 has also been implicated in human B cell malignancies, as it is deregulated by chromosomal translocations in a subset of acute lymphoblastic leukemias and non-Hodgkin lymphomas.
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