Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Low-density miRNA microarray of induced mouse myeloid-derived suppressor cell


ABSTRACT: Myeloid-derived suppressor cells (MDSCs) are one of the main cell populations that negatively regulate immune responses. However, the mechanism underlying the differentiation and expansion of MDSCs remains unclear. Employing a low-density miRNA microarray and a TaqMan probe-based qRT-PCR assay, we investigated the miRNAs expression profiles of MDSC. Compared to freshly isolated BM cells, BM-MDSCs had a significantly altered miRNA profile. There were 45 miRNAs that were upregulated and 17 miRNAs that were downregulated more than 2-fold. Among these miRNAs, miR-155 and miR-21 have the highest upregulation after cytokine induction. BM cells were planted into dishes using RPMI1640 medium supplemented with 2 mM L-glutamine, 10mM HEPES, 20M-BM-5M 2-mercaptoethanol, 150 U/ml streptomycin, 200 U/ml penicillin, 10% FBS and stimulated with combinations of GM-CSF (40ng/ml), and IL-6 (40ng/ml). Cells were cultured at 37M-BM-0C in 5% CO2-humidified atmosphere for 4 days.Total RNA were isolated, low-density miRNA microarray was performed

ORGANISM(S): Mus musculus

SUBMITTER: Zhen Zhou 

PROVIDER: E-GEOD-50914 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

MicroRNA-155 and MicroRNA-21 promote the expansion of functional myeloid-derived suppressor cells.

Li Limin L   Zhang Jing J   Diao Wenli W   Wang Dong D   Wei Yao Y   Zhang Chen-Yu CY   Zen Ke K  

Journal of immunology (Baltimore, Md. : 1950) 20140103 3


Myeloid-derived suppressor cells (MDSC) are one of the main cell populations that negatively regulate immune responses. However, the mechanism underlying the expansion of MDSC remains unclear. Using miRNA microarray and TaqMan probe-based quantitative RT-PCR assay, we identified microRNA (miR)-155 and miR-21 as the two most upregulated miRNAs during the induction of MDSC from the bone marrow cells by GM-CSF and IL-6. High levels of miR-155 and miR-21 also were detected in bone marrow and spleen  ...[more]

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