Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA386905 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:To characterize the transcriptional program that governs terminal granulocytic differentation in vivo, we performed comprehensive microarray analysis of human bone marrow population highly enriched for promyelocytes, myelocytes / metamyelocytes and neotrophils. Bone marrow and peripheral blood samples were collected from healthy individuals in parallel. Cell populations representing successive stages of terminal granulocytic differentation were isolated from human bone marrow samples by 2-layer density gradient centrifugation, neutrophils were collected from peripheral blood using 1-layer density gradient centrifugation. All populations were depleted of nongranulocytic cells by immunomagnetic sorting.
2009-12-19 | E-GEOD-19556 | biostudies-arrayexpress
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2010-04-22 | E-GEOD-21437 | biostudies-arrayexpress
Project description:Normal human neutrophil development is a complex biological process, where the balance between cell proliferation, differentiation and apoptosis is tightly regulated by a transcriptional program that results in the production of appropriate numbers of circulating mature neutrophils. MicroRNAs (miRNAs) are small non-coding RNAs of 18~25 nt that affect cellular protein levels. Only limited data is available on miRNA expression patterns during normal granulocytic differentiation of primary human cells. We have examined miRNA expression patterns in distinct stages of granulocytic differentiation sorted from human bone marrow and identified highly stage-specific expressed miRNAs. Some of these differentially expressed miRNA are related to each other in terms of seed sequence (miRNA families) and location on the genome (miRNA clusters). These data reveal distinct expression patterns of specific miRNA sets that closely follow the transition of discrete maturation stages along the myeloblast-neutrophil pathway.
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