Genes regulated by miR-328-3p in ovarian cancer cells
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ABSTRACT:
PROVIDER: PRJNA488705 | ENA |
REPOSITORIES: ENA
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Project description:To identify genes regulated by miR-328-3p, we transfected miR-328-3p mimics in ovarian cancer cell line OV2008, and compared the gene expression profiles between miR-328-3p mimics transfected and Negative Control miRNA-transfected cells.
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Project description:Oxaliplatin (oxPt) resistance in colorectal cancers (CRC) is a major unsolved problem. Consequently, predictive markers and a better understanding of resistance mechanisms are urgently needed. To investigate if the recently identified predictive miR-625-3p is functionally involved in oxPt resistance, stable and inducible models of miR-625-3p dysregulation were analyzed. Ectopic expression of miR-625-3p in CRC cells led to increased resistance towards oxPt. The mitogen-activated protein kinase (MAPK) kinase 6 (MAP2K6/MKK6) – an activator of p38 MAPK - was identified as a functional target of miR-625-3p, and, in agreement, was down-regulated in patients not responding to oxPt therapy. The miR-625-3p resistance phenotype could be reversed by anti-miR-625-3p treatment and by ectopic expression of a miR-625-3p insensitive MAP2K6 variant. Transcriptome, proteome and phosphoproteome profiles revealed inactivation of MAP2K6-p38 signaling as a possible driving force behind oxPt resistance. We conclude that miR-625-3p induces oxPt resistance by abrogating MAP2K6-p38 regulated apoptosis and cell cycle control networks.
2017-03-29 | MSV000080762 | MassIVE
Project description:miR-493-5p, miR-3662, and miR-589-3p were estimated as working microRNAs in bleomycin- and methotrexate-induced phenotypic changes in A549 cells via microRNAs-Proteins Analysis of Integrative Relationship (miR-PAIR). To verify the effect of these miRNAs on the their target protein expression levels, comprehensive expression of proteins in A549 cells treated with miR-493-59, miR-3662, and miR-589-3p mimic was examined by SWATH-MS method. As expected by a miR-PAIR mehtod, almost target proteins were succesfully regulated by miR-493-5p and miR-589-3p mimics.
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Project description:This is a prospective-retrospective study to determine if the expression of the miRNA’s miR-31-3p and miR-31-5p are prognostic of patient outcomes or predictive of the benefit from anti-EGFR therapy in stage III Colon Cancer. The present study will utilize FFPE tumor samples collected from patients enrolled in the PETACC-8 study conducted by the Fédération Francophone de Cancérologie Digestive (FFCD). This phase 3 clinical trial prospectively randomized fully resected stage III colon cancer patients to receive adjuvant treatment with either FOLFOX-4 plus cetuximab or FLOFOX-4 alone.
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Project description:Oxaliplatin (oxPt) resistance in colorectal cancers (CRC) is a major unsolved problem. Consequently, predictive markers and a better understanding of resistance mechanisms are urgently needed. To investigate if the recently identified predictive miR-625-3p is functionally involved in oxPt resistance, stable and inducible models of miR-625-3p dysregulation were analyzed. Ectopic expression of miR-625-3p in CRC cells led to increased resistance towards oxPt. The mitogen-activated protein kinase (MAPK) kinase 6 (MAP2K6/MKK6) – an activator of p38 MAPK - was identified as a functional target of miR-625-3p, and, in agreement, was down-regulated in patients not responding to oxPt therapy. The miR-625-3p resistance phenotype could be reversed by anti-miR-625-3p treatment and by ectopic expression of a miR-625-3p insensitive MAP2K6 variant. Transcriptome, proteome and phosphoproteome profiles revealed inactivation of MAP2K6-p38 signaling as a possible driving force behind oxPt resistance. We conclude that miR-625-3p induces oxPt resistance by abrogating MAP2K6-p38 regulated apoptosis and cell cycle control networks. Experimental design for mass spectrometry SILAC experiments can be found at https://figshare.com/s/8e79f008e0e58ec6efc2 or https://doi.org/10.6084/m9.figshare.4888139
2016-08-12 | PXD002172 | Pride
Project description:To identify the direct target of miR-490-3p, we used whole genome microarray expression profiling to screen for genes potentially regulated by the microRNA. AGS cells were transfected with control mimics or miR-490-3p mimics and gene expression was determined 72 hours after transfection.
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Project description:Advanced-stage high-grade serous ovarian cancer (HGSC) is a disease that is difficult to manage due to its heterogeneous clinical behavior. No reliable prediction of response to chemotherapy is currently available and the overall survival rate remains poor. Herein, we sought to determine the molecular mechanisms by which microRNAs (miRNAs) confer chemoresistance in ovarian cancer and to demonstrate the efficacy of targeting miRNAs to sensitize HGSC to cisplatin treatment. An miRNA signature for intrinsic chemoresistance was identified. Amongst all the downregulated miRNAs in the chemo-refractory samples, only miR-625-3p was associated with poorer overall survival and progression-free survival rates. Further functional studies showed that overexpression of miR-625-3p significantly decreased cisplatin resistance in ovarian cancer cells both in vitro and in vivo. SSX2IP was confirmed to be the direct gene target of miR-625-3p and its upregulation abrogated miR-625-3p-mediated cisplatin resistance by enhancing exosomal export of cisplatin in ovarian cancer cells. These findings provided a new paradigm for intrinsic cisplatin resistance acquisition by HGSC cells, which will be crucial for developing new treatment strategies for ovarian cancer based on upregulation of miR-625-3p or downregulation of SSX2IP to enhance cisplatin sensitivity and improve patient survival rates.
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Project description:Overexpression of miR-127-3p in LN229 glioblastoma cells promotes their migration and invasion in vitro and in vivo in xenograft models. We used microarrays to detail the global programme of gene expression in miR-127-3p overexpression LN229 cells compared with mock overexpression LN229 cells MiR-127-3p overexpression LN229 cells and and mock overexpression LN229 cells were cultured in DMEM cell culture media for RNA extraction and hybridization on Affymetrix microarrays. We sought to obtain the genes regulated by miR-127-3p in glioblastoma cell lines.
2014-09-01 | E-GEOD-50173 | biostudies-arrayexpress
Project description:To identify the direct target of miR-490-3p, we used whole genome microarray expression profiling to screen for genes potentially regulated by the microRNA.
2014-10-18 | GSE62453 | GEO
Project description:We report the application of transcriptome sequencing for investigating of the hsa-miR-371a-5p and hsa-miR-518a-3p regulated genes. JAR, JEG-3 and BeWo choriocarcinoma cells were transfected with hsa-miR-371a-5p or hsa-miR-518a-3p inhibitors or control inhibitors. Totally, 237, 132 and 277 genes with > 2 folds change and adjusted P < 0.05 were upregulated in JAR, JEG-3 and BeWo cells respectively after hsa-miR-371a-5p knockdown. Meanwhile, 229, 269 and 191 genes were upregulated in JAR, JEG-3 and BeWo cells respectively after hsa-miR-518a-3p knockdown. The top upregulated genes included many oncogenes or oncogenesis associated ones. Enrichment analysis showed hsa-miR-371a-5p and hsa-miR-518a-3p regulated diverse pathways related to tumorigenesis and metastasis. Our results would be helpful for the searching of early molecular biomarkers and therapeutic targets for gestational trophoblastic neoplasia.
2018-11-01 | GSE106394 | GEO