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Expression data on Treg cells isolated from wildtype mice and miR-125a deficient mice

ABSTRACT: We found miR-125a was a key regulator that stabilizes the commitment and immunoregulatory capacity of Treg cells.To gain insights into the general functional features of miR-125a-deficient Treg cells, we performed a genome-wide gene array analysis on Treg population isolated from the spleens of 6 to 8-week-old miR-125a-deficient and WT mice We sorted CD4+CD25hi Treg population from the spleens of 6 to 8-week-old miR-125a-deficient and their littermate WT mice. Cells were collected and total RNA was extracted for Affymetrix GeneChip®Mouse Genome 430 2.0 Array

ORGANISM(S): Mus musculus

SUBMITTER: Nan Shen

PROVIDER: E-GEOD-66608 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data on Treg cells isolated from wildtype mice and miR-125a deficient mice

Project description:We found miR-125a was a key regulator that stabilizes the commitment and immunoregulatory capacity of Treg cells.To gain insights into the general functional features of miR-125a-deficient Treg cells, we performed a genome-wide gene array analysis on Treg population isolated from the spleens of 6 to 8-week-old miR-125a-deficient and WT mice

2015-05-08 | GSE66608 | GEO

Expression profiles of HSPCs overexpressing microRNA cluster 99b/let-7e/125a, miR-125a, miR-155 and empty vector.

Project description:Hematopoietic stem/progenitor cell (HSPC) traits differ between genetically distinct mouse strains. For example, DBA/2 mice have a higher HSPC frequency compared to C57BL/6 mice. We performed a genetic screen for microRNAs that are differentially expressed between LSK, LS−K+, erythroid and myeloid cells isolated from C57BL/6 and DBA/2 mice. This analysis identified 131 microRNAs that were differentially expressed between cell types and 15 that were differentially expressed between mouse strains. Of special interest was an evolutionary conserved miR-cluster located on chromosome 17 consisting of miR-99b, let-7e and miR-125a. All cluster members were most highly expressed in LSKs and down-regulated upon differentiation. In addition, these microRNAs were higher expressed in DBA/2 cells compared to C57BL/6 cells, and thus correlated with HSPC frequency. To functionally characterize these microRNAs, we overexpressed the entire miR-cluster 99b/let-7e/125a and miR-125a alone in BM cells from C57BL/6 mice. Overexpression of the miR-cluster or miR-125a dramatically increased day-35 CAFC activity and caused severe hematopoietic phenotypes upon transplantation. We showed that a single member of the miR-cluster, namely miR-125a, is responsible for the majority of the observed miR-cluster overexpression effects. Finally, we performed genome-wide gene expression arrays and identified candidate target genes through which miR-125a may modulate HSPC fate. These data consist of total mRNA obtained from 7-day cultured post 5-FU BM cells positively transduced with empty vector, miR-cluster 99b/let-7e/125a, miR-125a or miR-155 retroviral vector. Dataset (A) and dataset (B) were analyzed individualy. In each dataset, all samples were analyzed in independent biological triplicates.

2011-12-15 | E-GEOD-33689 | biostudies-arrayexpress

Expression profiles of HSPCs overexpressing microRNA cluster 99b/let-7e/125a, miR-125a, miR-155 and empty vector.

2011-12-15 | GSE33689 | GEO

CodeLink Mouse Whole Genome Bioarray data from hematopoietic stem cells (HSCs) of miR-125a (+/+) wild-type and miR-125a knockout mice with myeloproliferative disorder (MPD)

2015-12-31 | GSE69621 | GEO

CodeLink™ Mouse Whole Genome Bioarray data from hematopoietic stem cells (HSCs) of miR-125a (+/+) wild-type mice and miR-125a (+/-) heterozygous mice with myeloproliferative disorder

2015-06-30 | GSE65648 | GEO

CodeLink Mouse Whole Genome Bioarray data from hematopoietic stem cells (HSCs) of miR-125a (+/+) wild-type and miR-125a knockout mice with myeloproliferative disorder (MPD)

Project description:miR-125a knockout mice develop myeloproliferative disorder (MPD). To investigate the molecular mechanisms of MPD induced by the loss of miR-125a, gene expression profiling on hematopoietic stem cells of miR-125a (+/+), (+/-) MPD, and (-/-) MPD mice was performed by using CodeLinkTM Whole Genome DNA array analysis. CodeLink Mouse Whole Genome Bioarrays were performed according to the manufacturerâs instruction on total RNA extracted from hematopoietic stem cells of miR-125a (+/+) wild-type mouse, miR-125a (+/-) heterozygous mouse with MPD, and miR-125a (-/-) homozygous mouse with MPD. One replicate per array.

2015-12-31 | E-GEOD-69621 | biostudies-arrayexpress

CodeLink™ Mouse Whole Genome Bioarray data from hematopoietic stem cells (HSCs) of miR-125a (+/+) wild-type mice and miR-125a (+/-) heterozygous mice with myeloproliferative disorder

Project description:miR-125a knockout mice develop myeloproliferave disorder (MPD). To investigate the molecular mechanisms of MPD induced by the loss of miR-125a, gene expression profiling on hematopoietic stem cells of miR-125a (+/+) and (+/-) MPD mice was performed using CodeLink Whole Genome DNA array analysis. Codelink Mouse Whole Genome Bioarrays were performed according to the manufacturer’s instruction on total RNA extracted from hematopoietic stem cells of miR-125a (+/+) wild-type mice and miR-125a (+/-) heterozygous mice with MPD. One replicate per array.

2015-06-30 | E-GEOD-65648 | biostudies-arrayexpress

Genetic Screen Identifies MicroRNA Cluster 99b/let-7e/125a as a Regulator of Primitive Hematopoietic Cells

Project description:This SuperSeries is composed of the following subset Series: GSE33689: Expression profiles of HSPCs overexpressing microRNA cluster 99b/let-7e/125a, miR-125a, miR-155 and empty vector. GSE33690: MicroRNA profiles of four developmentally related hematopoietic cell types isolated from the BM of B6 and D2 mice. Refer to individual Series

2011-12-15 | E-GEOD-33691 | biostudies-arrayexpress

RNA-Seq of inflammatory stimulated HUVECs transfected with microRNA-125a-5p or negative control.

Project description:Purpose: In recent years, research has revealed the role of microRNAs (miRs) as important regulators of endothelial function. Notably, miR-125a is upregulated in the blood of patients with acute vascular diseases. Since miRNAs act out their function in networks, we aimed at investigating the presence of a miR-125a-related network regulating the endothelial barrier. Method: We investigated transcriptional changes of human umbilical cord endothelial cells (HUVEC) after miR-125a overexpression in an acute inflammatory in-vitro setting using Next Generation Sequencing. Briefly, primary HUVECs from five different donors were transfected either with hsa-miR-125a-5p or negative control (NC). After transfection HUVECs were cultivated for 18 hours and stimulated with TNF (25 ng/ml) for additional 6 hours. We compared the following groups: NC (18047-0001, 18047-0002, 18047-0003, 18047-0004, 18047-0005) versus miR125a: (18047-0006, 18047-0007, 18047-0008, 18047-0009, 18047-0010) Results: MiR-125a overexpression in inflammatory activated HUVECs significantly altered gene expression of 468 genes (FC: +1.25 to -1.25 p<0.01). We found eight potential miR-125a direct target genes involved in endothelial barrier function.

2022-02-07 | GSE196161 | GEO

Gene expression analysis after miR-125a-3p over-expression in oligodendrocyte precursor cells (OPCs)

Project description:MiR-125a-3p over-expression in OPCs impairs their differentiation into fully mature oligodendrocytes. We performed a whole microarray profiling to identify new miR-125a-3p direct targets and altered signaling pathways responsible for its the detrimental effect on oligodendrocyte maturation.

2021-01-21 | GSE143876 | GEO

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