Monocytic cell differentiation from band-stage neutrophils under inflammatory conditions
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ABSTRACT: During inflammation, neutrophils are rapidly mobilized from the bone marrow storage pool into peripheral blood to subsequently enter lesional sites where most of them rapidly undergo apoptosis. Monocytes constitute a second wave of inflammatory immigrates giving rise to long-lived macrophages and dendritic cell subsets. According to descriptive immunophenotypic and cell culture studies, neutrophils may directly M-bM-^@M-^\transdifferentiateM-bM-^@M-^] into monocytes/macrophages. We here provide mechanistic data in human supporting the existence of this cellular pathway. Global transcriptional profiling of neutrophil-dervived monocytic cells revealed close resemblance of gene expression with monocytes and a clear separation of these cells from neutrophils. G-CSF mobilized neutrophils from peripheral blood were isolated and in vitro stimulated with GM-CSF, TNFa, and Il-1b for 5 days to generate monocytic cells. RNA were isolated from these cells and freshly isolated blood neutrophils and monocytes.
ORGANISM(S): Homo sapiens
SUBMITTER: Karin Wagner
PROVIDER: E-GEOD-58920 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
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