Journal
ONCOTARGET
Volume 7, Issue 20, Pages 28806-28820Publisher
IMPACT JOURNALS LLC
DOI: 10.18632/oncotarget.8933
Keywords
microRNA; macrophage; differentiation; transcriptional regulation; Immunology and Microbiology Section; Immune response; Immunity
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Funding
- National Health and Medical Research Council of Australia
- Australian Research Council
- Cooperative Research Centre for Asthma and Airways
- Medical Research Council [MR/K006584/1] Funding Source: researchfish
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Limited evidence is available about the specific miRNA networks that regulate differentiation of specific immune cells. In this study, we characterized miRNA expression and associated alterations in expression with putative mRNA targets that are critical during differentiation of macrophages. In an effort to map the dynamic changes in the bone marrow (BM), we profiled whole BM cultures during differentiation into macrophages. We identified 112 miRNAs with expression patterns that were differentially regulated 5-fold or more during BMDM development. With TargetScan and MeSH databases, we identified 1267 transcripts involved in 30 canonical pathways linked to macrophage biology as potentially regulated by these specific 112 miRNAs. Furthermore, by employing miRanda and Ingenuity Pathways Analysis (IPA) analysis systems, we identified 18 miRNAs that are temporally linked to the expression of CSF1R, CD36, MSR1 and SCARB1; 7 miRNAs linked to the regulation of the transcription factors RUNX1 and PU.1, and 14 miRNAs target the nuclear receptor PPAR alpha and PPAR gamma. This novel information provides an important reference resource for further study of the functional links between miRNAs and their target mRNAs for the regulation of differentiation and function of macrophages.
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