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Expression profiling in miR-290 6dt1 mammary tumors

ABSTRACT: mRNA expression data from mammary tumors extracted 30 days after orthotopic injection of miR-290-expressing and negative control 6dt1 cells into female FVB/N mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE43485 | GEO | 2013/01/15

SECONDARY ACCESSION(S): PRJNA186559

REPOSITORIES: GEO

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Expression profiling in miR-290 6dt1 mammary tumors

Project description:mRNA expression data from mammary tumors extracted 30 days after orthotopic injection of miR-290-expressing and negative control 6dt1 cells into female FVB/N mice. At 6 weeks of age, FVB/N female mice were orthotopically injected with 1.0x10E5 6dt1 cells, either expressing miR-290 or a negative control RNA construct. 4 negative control tumors and 3 miR-290 tumors were analyzed.

2013-01-15 | E-GEOD-43485 | biostudies-arrayexpress

miRNA expression analysis in AKXD RI strain mammary tumors

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The eutherian-specific miR-290/miR-371 cluster modulates placental growth and maternal-fetal transport

Project description:A family of vertebrate-specific microRNAs called the ESCC microRNAs regulates proliferation and differentiation of embryonic stem cells. The ESCC microRNAs arise from two genetic loci in mammals, the miR-290/miR-371 and miR-302 loci. While the miR-302 locus is found broadly among vertebrates, the miR-290/miR-371 locus is unique to eutherian species, suggesting a role in placental development. Here, we evaluate that role. A knockin reporter for the mouse miR-290 gene is expressed throughout the embryo until gastrulation, at which time it becomes specifically expressed in extraembryonic tissues and the germline. In the placenta, expression is limited to the trophoblast lineage, where it remains highly expressed until birth. Deletion of the miR-290 gene results in reduced trophoblast progenitor cell proliferation and a reduced DNA content in endoreduplicating trophoblast giant cells. A reduction in placental size precedes a reduction in fetal size and prenatal death of most knockout embryos. The vascular labyrinth shows disorganization with thickening of the barrier between maternal and fetal blood associated with reduced diffusion of a radioactive tracer. Multiple mRNA targets of the cluster miRNAs are upregulated. Together, these data uncover a critical function for the miR-290 in the regulation of a network of genes required for normal placental development, suggesting a central role for this microRNA cluster in the evolution of eutherian species.

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Transcriptome of miR-290-295 KO mESCs

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Expression data from C3(1)Tag mammary tumors, tumor derived cell line (M6) and normal mammary tissue (FVB)

Project description:M6 cells expression a similar genetic signature as the parent tumor, C3(1)Tag tumor. The mammary tumors, and tumor cell line, are distinct from normal mammary epithelial tissue (FVB) BRCA/p53, cmyc, h2n, p53ERneg, p53ERpos, pymt and ras samples were not reported in this paper. We used microarrays to determine whether the M6 cell line retains the SV40Tag signature (91 gene signature) that is expressed in C3(1)Tag tumors but not FVB normal mammary tissue.

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Expression analysis of OSK and Sall4+OSK reprogramming cells sorted for expression of miR-290 and/or miR-302.

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Transcriptomes of miR-290-295 KO mESCs treated with siPOOLs against the transcription factor Tfap4

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