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Distinct routes of lineage development reshape the human blood hierarchy across ontogeny

GSE76234 Homo sapiens Expression profiling by high throughput sequencing 24 samples Submitted 2016/01/23 Platform GPL11154
Summary
In a classical view of hematopoiesis, the various blood cell lineages arise via a hierarchical scheme starting with multipotent stem cells that become increasingly restricted in their differentiation potential through oligopotent and then unipotent progenitors. We developed a cell-sorting scheme to resolve myeloid (My), erythroid (Er), and megakaryocytic (Mk) fates from single CD34+ cells and then mapped the progenitor hierarchy across human development. Fetal liver contained large numbers of distinct oligopotent progenitors with intermingled My, Er and Mk fates. However, few oligopotent progenitor intermediates were present in the adult bone marrow. Instead only two progenitor classes predominate, multipotent and unipotent, with Er-Mk lineages emerging from multipotent cells. The developmental shift to an adult 'two-tier' hierarchy challenges current dogma and provides a revised framework to understand normal and disease states of human hematopoiesis.
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Direct links to NCBI, no account and no request form: the whole study as GSE76234_RAW.tar, processed values as the series matrix, the supplementary file directory, and per-sample supplementary files for any of the 24 samples. Raw sequencing reads are also available from ENA.

Also filed as BioProject PRJNA306683 and SRA study SRP067661. Searching any of these in the dataset finder brings you back here.

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