GEO DataSets

Analysis of C3H10T1/2 fibroblast cells following microRNA-140 silencing. MicroRNAs are short noncoding RNA molecules that regulate the expression of mRNAs. Results identify gene targets of microRNA-140.

Organism:

Mus musculus

Type:

Expression profiling by array, transformed count, 2 protocol sets

Platform:

GPL1261

Series:

GSE13590

6 Samples

Download data: CEL

(Submitter supplied) MicroRNAs (miRNAs) are short noncoding RNA molecules regulating the expression of mRNAs. Target identification of miRNAs is computationally difficult due to the relatively low homology between miRNAs and their targets. We present here an experimental approach to target identification where the cartilage-specific miR-140 was overexpressed and silenced in cells it is normally expressed in separate experiments. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Datasets:

GDS3461 GDS3462

Platform:

GPL1261

12 Samples

Download data: CEL

Analysis of C3H10T1/2 fibroblast cells following microRNA-140 overexpression. MicroRNAs are short noncoding RNA molecules that regulate the expression of mRNAs. Results identify gene targets of microRNA-140.

Organism:

Mus musculus

Type:

Expression profiling by array, transformed count, 2 protocol sets

Platform:

GPL1261

Series:

GSE13590

6 Samples

Download data: CEL

(Submitter supplied) MicroRNAs (miRNAs) are noncoding RNAs of approximately 22 nucleotides in length that usually suppress the translation of target messenger RNAs (mRNAs) through partial complementarity to the 3¡¦ untranslated region (3¡¦ UTR) of protein-coding mRNAs in animals. However, there is increasing evidence that miRNAs can also reduce the steady-state levels of their target mRNAs in animals. In this investigation, both miRNA and mRNA profiles from the undifferentiated human embryonic stem cell line hES-T3 (T3ES), hES-T3 derived embryoid bodies (T3EB) and hES-T3 differentiated fibroblast-like cells (T3DF) were quantitatively determined. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

8 Samples

Download data: CEL

(Submitter supplied) To find potential microRNA links between Smad3 and E-cadherin, we characterized the microRNA profiles of two gastric cancer cell lines: SNU484-LPCX, which does not express Smad3, and SNU484-Smad3, in which Smad3 is overexpressed. We found that miR-200 families, among other differentially expressed miRNAs, are overexpressed in SNU484-Smad3. Through subsequent studies, including silencing of Smad3 in SNU484-Smad3 and expression profiling of epithelial-mesenchymal markers and ZEB1/2, known repressors of E-cadherin, we found that Smad3 regulates miR-200 families at the transcriptional level, which regulate ZEB 1/2, known transcriptional repressors of E-cadherin, at the post-transcriptional level. more...

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL9052

2 Samples

Download data: TXT

(Submitter supplied) Twenty-four triple-negative breast cancer and 14 adjacent normal tissues were collected from breast cancer patients during surgeries at National Taiwan University Hospital (NTUH, Taipei, Taiwan). All triple-negative breast cancer samples were invasive ductal carcinomas (IDC) and were negative in immunohistochemical statuses of ER, PR, and HER2 receptors, as confirmed by professional pathologists. Treatment procedure of all patients followed the National Comprehensive Cancer Network (NCCN) guideline. more...

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL13393

38 Samples

Download data: TXT

(Submitter supplied) miR-133a-3p is a highly abundant cardiomyocyte-enriched microRNA whose expression is persistently decreased in response to pressure overload (or transverse aortic constriction, TAC) in mice. Overexpression of miR-133a in cardiomyocytes of mouse hearts in vivo (under the control of the Myh6 promoter) decreases pressure overload-induced apoptosis and fibrosis. In previous studies using microarray platforms, we detected numerous mRNAs whose transcript levels were altered by either or both of miR-133a overexpression and pressure overload. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Other

Platform:

GPL13112

38 Samples

Download data: GTF, TXT

(Submitter supplied) Rationale: MicroRNAs play key roles in hypertrophic stress responses. miR-378(-3p) is a highly abundant, cardiomyocyte-enriched microRNA whose downregulation in pressure-overload has been suggested as detrimental to the heart. Previous studies have utilized systemic anti-miR or microRNA-encoding virus administration, and thus questions regarding the cardiomyocyte-autonomous roles of miR-378 remain. Objective: To examine whether persistent overexpression of miR-378 in cardiomyocytes alters the phenotype of the unstressed heart, whether its overexpression is beneficial or deleterious in the setting of pressure-overload, and to comprehensively identify its cardiomyocyte-specific effects on mRNA regulation. Methods and Results: Cardiac function was compared in young (10-12 week-old) mice overexpressing miR-378 in the heart under the control of the Myh6 promoter (alphaMHC-miR-378 mice), in older (40 week-old) mice and their age-matched wild-type controls. Older alphaMHC-miR-378 mice exhibited decreased fractional shortening and modest chamber dilation with an increase in cardiomyocyte length. When subjected to pressure-overload, cardiomyocyte length was increased in young alphaMHC-miR-378 mice, but fractional shortening declined precipitously over two weeks. Transcriptome profiling of wild-type and alphaMHC-miR-378 hearts in unstressed and pressure-overload conditions revealed dysregulation of several upstream metabolic and mitochondrial genes in alphaMHC-miR-378 hearts, compromising the reprogramming that occurs during early adaptation to pressure overload. Ago2 immunoprecipitation with mRNA sequencing revealed novel miR-378 cardiac mRNA targets including Akt1 and Epac2 and demonstrated the contextual nature of previously described miR-378 targeting events. Conclusions: Long-term upregulation of miR-378 levels in the heart is not innocuous and exacerbates contractile dysfunction in pressure-overload hypertrophy through numerous signaling mechanisms.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Other

Platform:

GPL13112

40 Samples

Download data: GTF, TXT

(Submitter supplied) TGF-β is involved in various biological processes, including development, differentiation, growth regulation, and epithelial-mesenchymal transition (EMT). In TGF-β/Smad signaling, receptor-activated Smad complexes activate or repress their target gene promoters. Smad cofactors are a group of Smad-binding proteins that promote recruitment of Smad complexes to these promoters. Long noncoding RNAs (lncRNAs), that behave as Smad cofactors have thus far not been identified. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL17077

5 Samples

Download data: TXT

(Submitter supplied) TGF-β is involved in various biological processes, including development, differentiation, growth regulation, and epithelial-mesenchymal transition (EMT). In TGF-β/Smad signaling, receptor-activated Smad complexes activate or repress their target gene promoters. Smad cofactors are a group of Smad-binding proteins that promote recruitment of Smad complexes to these promoters. Long noncoding RNAs (lncRNAs), that behave as Smad cofactors have thus far not been identified. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL17077

5 Samples

Download data: TXT

(Submitter supplied) We conducted the genome-wide mRNA expression profiling in parallel with miRNA expression profiling using RNA samples extracted from rat incisor enamel organs, so as to refine the number of predicted gene targets for miRNA regulators.

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL6101

8 Samples

Download data: TXT

(Submitter supplied) Human embryonic stem (hES) cells have the capacities to propagate for extended periods and to differentiate into cell types from all three germ layers both in vitro and in vivo. These characteristics of self-renewal and pluripotency enable hES cells having the potential to provide an unlimited supply of different cell types for tissue replacement, drug screening, and functional genomics studies. The hES-T3 cells with normal female karyotype cultured on either mouse embryonic fibroblasts (MEF) in hES medium (containing 4 ng/ml bFGF) (T3MF) or feeder-free Matrigel in MEF-conditioned medium (supplemented with additional 4 ng/ml bFGF) (T3CM) were found to express very similar profiles of mRNAs and microRNAs, indicating that the unlimited self-renewal and pluripotency of hES cells can be maintained by continuing culture on these two conditions. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

6 Samples

Download data: CEL

(Submitter supplied) MicroRNA (miRNA) is a family of small regulatory RNA that post-transcriptionally regulates many biological functions including growth and development. Chicken miR-143 and miR-10a are expressed in both the embryonic and post-hatch chick in a spatio-temporal manner. In order to study the functions of these miRNAs, loss of function and microarray approaches were employed. Spleen cells were isolated from embryonic day 18 chickens and immediately transfected with either a synthetic miR-143 inhibitor or a synthetic miR-10a inhibitor or a negative control oligo-nucleotide (Dharmacon). more...

Organism:

Gallus gallus

Type:

Expression profiling by array

Platform:

GPL6049

12 Samples

Download data: GPR

(Submitter supplied) Resistance to endocrine therapy agents has presented a clinical obstacle in the treatment of hormone-dependent breast cancer. Our laboratory has initiated a study of microRNA regulation of signaling pathways that may result in breast cancer progression on aromatase inhibitors (AI). Microarray analysis of microRNA expression identified 115 significantly regulated microRNAs, of which 49 microRNAs were believed to be hormone-responsive. more...

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL9081

23 Samples

Download data: TXT

(Submitter supplied) Smad2/3 are transcription factors that engage in TGF-beta-induced transcription. Here we analyzed the effect of identified Smad2/3 binding sites to transcription. We used expression microarrays to compare the Smad2/3 binding sites identified by ChIP-chip to TGF-beta-induced gene expressions. Keywords: time course We also examined the effect of either ETS1/TFAP2A/SMAD2/SMAD3 siRNAs on TGF-beta-induced gene expression change.

Organism:

Homo sapiens

Type:

Expression profiling by array; Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL570 GPL7026

20 Samples

Download data: CEL