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Abstract
Blood cells derive from hematopoietic stem cells through stepwise fating events. To characterize gene expression programs driving lineage choice, we sequenced RNA from eight primary human hematopoietic progenitor populations representing the major myeloid commitment stages and the main lymphoid stage. We identified extensive cell type-specific expression changes: 6711 genes and 10,724 transcripts, enriched in non-protein-coding elements at early stages of differentiation. In addition, we found 7881 novel splice junctions and 2301 differentially used alternative splicing events, enriched in genes involved in regulatory processes. We demonstrated experimentally cell-specific isoform usage, identifying nuclear factor I/B (NFIB) as a regulator of megakaryocyte maturation-the platelet precursor. Our data highlight the complexity of fating events in closely related progenitor populations, the understanding of which is essential for the advancement of transplantation and regenerative medicine.
Original language | English |
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Article number | 1251033 |
Journal | Science |
Volume | 345 |
Issue number | 6204 |
DOIs | |
Publication status | Published - 26 Sept 2014 |
Bibliographical note
Copyright © 2014, American Association for the Advancement of Science.Fingerprint
Dive into the research topics of 'Transcriptional diversity during lineage commitment of human blood progenitors'. Together they form a unique fingerprint.Projects
- 1 Finished
Profiles
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Professor Andrew D Mumford
- Bristol Medical School (THS) - Professor of Haematology
- School of Cellular and Molecular Medicine - Professor of Haematology
Person: Academic