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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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The microRNA expression profile of C2C12 cell upon 72 hours of BMP2 treatment

ABSTRACT: To identify osteoblast specific miRNAs that can contribute to osteoblastogenesis by post-transcriptionally regulates their targets, BMP2 are treated to C2C12 for 72 hours and performed miRNA microarray. C2C12 cells were treated with vehicles or BMP2 (300 ng/mL) supplemented alpha-MEM media for 72 days and total RNA was harvested and performed exiqon miRNA microarray. Duplicates were used for each condition. Dye swaps were done.

ORGANISM(S): Mus musculus

SUBMITTER: Yangjin Bae

PROVIDER: E-GEOD-37036 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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miRNA-34c regulates Notch signaling during bone development.

Bae Yangjin Y Yang Tao T Zeng Huan-Chang HC Campeau Philippe M PM Chen Yuqing Y Bertin Terry T Dawson Brian C BC Munivez Elda E Tao Jianning J Lee Brendan H BH

Human molecular genetics 20120412 13

During bone homeostasis, osteoblast and osteoclast differentiation is coupled and regulated by multiple signaling pathways and their downstream transcription factors. Here, we show that microRNA 34 (miR-34) is significantly induced by BMP2 during osteoblast differentiation. In vivo, osteoblast-specific gain of miR-34c in mice leads to an age-dependent osteoporosis due to the defective mineralization and proliferation of osteoblasts and increased osteoclastogenesis. In osteoblasts, miR-34c target ...[more]

PMID: 22498974

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Hepatocellular carcinoma (HCC)

Project description:BACKGROUND & AIMS: Expression of microRNAs (miRNAs) in metastatic foci of hepatocellular carcinoma (HCC) is unknown. We identified metastasis-related miRNAs in recurrent cases after living donor liver transplantation (LDLT). Methods: We performed a comprehensive analysis of primary HCC (T), noncancerous liver (N), and resected recurrent (metastatic) HCC (M) using microarray analyses to identify metastasis-related miRNAs in in three patients with post-transplant recurrence. The RNA samples from three cases that underwent resection of recurrences after LDLT were made available for miRNA microarray analysis. The three cases included a 57-year-old man (case 1) with peritoneal recurrence and infected by hepatitis B virus (HBV), and a 48-year-old woman (case 2) and a 51-year-old man (case 3) with lung recurrences and hepatitis C virus (HCV) infection. Microarray analysis was performed for each RNA sample from the (T), (N) in the explanted liver, and (M). A sample containing equal amounts of RNAs from histologically normal livers of three living donors (NL: normal liver) was analyzed as a control. The RNA samples from three cases that underwent resection of recurrences after living donor liver transplantation were made available for microRNA microarray analysis. Microarray analysis was performed for each RNA sample from the primary HCC (T), noncancerous liver (N) in the explanted liver, and resected recurrent metastatic HCC (M). A sample containing equal amounts of RNAs from histologically normal livers of three living donors (NL: normal liver) was analyzed as a control.

2013-10-25 | E-GEOD-41874 | biostudies-arrayexpress

miRNA expression data from callus in standard fracture healing models and from fibrous tissues in nonunion models in rats on post-fracture day 14

Project description:Profiling of miRNA expressions comparing standard fracture healing models with nonunion models in rats 12w, male, Sprague–Dawley rats were used in this study. Animals were randomized to receive either a surgical treatment that has been shown to produce a nonunion or to a standard stabilized closed femoral shaft fracture that is known to successfully heal. The details of these procedures have been previously described. Briefly, to produce standard healing models, a 1.2-mm diameter K-wire was inserted retrograde into the right femoral intramedullary canal and a closed transverse femoral shaft fracture was produced using a three-point bending apparatus with a drop weight . To produce the nonunion, the fractured site was additionally exposed, and the periosteum was cauterized circumferentially for a distance of 2 mm on each side of the fracture . Five animals from each group were euthanized on post-fracture day 14 for microarray analysis.

2015-09-03 | E-GEOD-55088 | biostudies-arrayexpress

MicroRNA miR-16 is anti-proliferative in enterocytes and exhibits diurnal rhythmicity in intestinal crypts

Project description:This is the first report to document circadian rhythmicity of specific microRNAs in rat jejunum. Our data provide a link between the anti-proliferative microRNA miR-16 and the intestinal proliferation rhythm and point to miR-16 as an important regulator of proliferation in jejunal crypts. This function may be essential to match proliferation and absorptive capacity with nutrient availability. Time course data with 7 time points and 3 replicates per time point. Each 2-color array is hybridized against a reference from time point 0, and dye swaps are included.

2010-08-13 | E-GEOD-20603 | biostudies-arrayexpress

Human plasma: circulating microRNA after acute resistance exercise

Project description:Profiling of circulating miRNAs before, 60 mins, 1day and 3 days after an acute resistance exercise. Three subjects performed an acute resistance exercise. The resistance exercise consisted of two consecutive exercises (bench press and bilateral leg press), consisting of five sets of 10 repetitions at 70% of 1 RM. The subjects were allowed to rest for 1 min between each set and exercise. The subjects were instructed to lift and lower the load at a constant velocity, taking about 2 s for each repetition. If the load became too heavy, the subject was assisted. The range of motion in each exercise was from 90° to 0° (0° at full extension). Blood samples were taken before, 60 mins, 1day and 3days after the exercise.

2013-06-29 | E-GEOD-48405 | biostudies-arrayexpress

MicroRNA expression profiling in adult mouse liver following benzo(a)pyrene (BaP) treatment [Exiqon miRNA array]

Project description:Lack of change in microRNA expression in adult mouse liver following treatment with benzo(a)pyrene (BaP), as detected using Exiqon miRNA arrays. Adult male mice were exposed to 150 mg/kg benzo(a)pyrene (BaP) or solvent for 3 days and sampled 4 hours after the last dose. MicroRNA expression levels in adult mouse liver were measured using Exiqon miRNA arrays. Our results indicate a distinct lack of effect of BaP of miRNA expression, despite widespread changes in mRNA levels (measured using Agilent arrays). Lack of miRNA changes was confirmed with Agilent miRNA arrays. Keywords: Toxicology, miRNA Adult male B6C3F1 mice were exposed to a daily dose of corn oil (vehicle control group) or 150 mg/kg BaP (treatment group) for 3 d (n=6 per group). Mice were sacrificed at 4 h or 24 h following the last dose and liver lobes were extracted and flash frozen. Exiqon miRNA arrays were used to examine changes in miRNA transcript levels in random liver lobe sections.

2010-10-18 | E-GEOD-18782 | biostudies-arrayexpress

Identification of XMRV Infection-Associated microRNAs in Four Cell Types in Culture (Experiment B)

Project description:XMRV is a gammaretrovirus that was thought to be associated with prostate cancer (PC) and chronic fatigue syndrome (CFS) in humans until recently. The virus is culturable in various cells of human origin like lymphocytes, NK cells, neuronal cells, and prostate cell lines. MicroRNAs (miRNAs), which regulate gene expression, were so far not identified in cells infected with XMRV in culture. Two prostate cancer cell lines (LNCaP and DU145) and two primary cells (peripheral blood lymphocytes (PBLs) and monocyte-derived macrophages (MDMs)) were infected with XMRV. Total mRNA was extracted from mock- and virus-infected cells at 6, 24 and 48 hours post-infection and evaluated for microRNA profile in a microarray. MicroRNA expression profiles of XMRV-infected continuous prostate cancer cell lines differ from that of virus-infected primary cells (PBLs and MDMs). miR-193a-3p and miRPlus-E1245 were observed to be specific to XMRV infection in all 4 cell types. While miR-193a-3p levels were down-regulated, miRPlus-E1245 on the other hand exhibited varied expression among the 4 cell types. The present study demonstrates that cellular microRNAs are expressed during XMRV infection of human cells. This is the first report demonstrating the regulation of miR193a-3p and miRPlus-E1245 during XMRV infection in four different human cell types. Two prostate cancer cell lines (LNCaP and DU145) and two primary cells (peripheral blood lymphocytes (PBLs) and monocyte-derived macrophages (MDMs)) were infected with XMRV. Total mRNA was extracted from mock- and virus-infected cells at 6, 24 and 48 hours post-infection in duplicates and evaluated for microRNA profile in a microarray. Each test sample RNA was labeled with Hy3 and the reference pool (made by pooling all 24 test samples in each run) was labeled with Hy5.

2012-05-05 | E-GEOD-37787 | biostudies-arrayexpress

Identification of XMRV Infection-Associated microRNAs in Four Cell Types in Culture (Experiment A)

2012-05-05 | E-GEOD-37786 | biostudies-arrayexpress

Identification of XMRV Infection-Associated microRNAs in Four Cell Types in Culture

Project description:This SuperSeries is composed of the following subset Series: GSE37786: Identification of XMRV Infection-Associated microRNAs in Four Cell Types in Culture (Experiment A) GSE37787: Identification of XMRV Infection-Associated microRNAs in Four Cell Types in Culture (Experiment B) Refer to individual Series

2012-05-05 | E-GEOD-37788 | biostudies-arrayexpress

Global miRNA transcriptomic profiling of permanent focal ischemia in an in vivo rat model

Project description:Focal ischemia is triggered by the sudden significant reduction of blood supply to the brain, as a result of either the rupture or occlusion by thrombus/embolism of a blood vessel in the brain. Permanent focal ischemia occurred when blood supply to a specific part of the brain is impeded without reperfusion. Despite major steps achieved in the elucidation of the patho-physiology of cerebral ischemia, the available therapeutic avenues for acute ischemic stroke remain scarce. Cell cycle re-activation has been revealed as a novel signaling pathway during permanent focal ischemia. As such, non-specific aurora kinase inhibitor ZM447439, has been injected intracranial-ventricularly 30min post-ischemia induction to determine its efficacy in reduction of neuronal damage in terms of infarct volume. miRNA microarray analysis was performed on Exiqon 5th generation - hsa, mmu & rno (Product no: 208300-A) to compliment our existing gene expression microarray data [GSE23651]. Arrays were run as dual colour (Hy3: Sample, and Hy5: Common sample reference pool). Right cortex RNA samples were collected at two time-points (8h and 24h )respectively for all three experimental conditions: Sham (n=4), vehicle (i.e. ischemic injury with i.c.v. injection 80% DMSO; n=4) and treatment (injury plus i.c.v.injection of 30mM ZM447439 in 80% DMSO; n=4). Supplementary file: Project_Summary_Report.txt The percentages listed in the top row are present-call rates, i.e. number of identified miRNAs compared to number of miRNAs on array.

2013-12-31 | E-GEOD-25556 | biostudies-arrayexpress

Upregulation of pro-apoptotic microRNA mir-125a following massive small bowel resection in rats

Project description:Upregulation of mir-125a suppresses the pro-survival protein Mcl1, producing the increase in apoptosis known to accompany the proliferative changes characteristic of intestinal adaptation. Our data highlight a potential role for microRNAs as mediators of the adaptive process and may facilitate the development of new therapeutic options for short bowel syndrome. Two-condition experiment: resected rat jejunum vs. pooled transected control, with dye-swaps.

2012-05-02 | E-GEOD-26542 | biostudies-arrayexpress

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