Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA205950 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Analysis of changes in gene expression after transfection with miR-509-3p mimic in A549 cells Total RNA was obtained from A549 cells transfected with miR-509-3p and negative control mimics, and gene expression was compared using microarrays.
2014-05-31 | E-GEOD-47522 | biostudies-arrayexpress
Project description:Analysis of changes in gene expression after transfection with miR-509-3p mimic in A549 cells
2014-05-31 | GSE47522 | GEO
Project description:Genome-wide analysis of miR-552-3p- and miR-608-mediated gene silencing in A549 lung cancer cells
| PRJNA264965 | ENA
Project description:To investigate the difference of miRNA expression between lung cancer cell A549 and its DDP-resistant cell strain A549/DDP, we have employed miRNA microarray expression to discover the difference expression of miRNAs of A549 cells and A549/DDP. We conducted RT-qPCR to examine the expression levels of top differential expressed miRNAs, namely, miR-197-5p, miR-4443, miR-642a-3p, miR-27b-3p and miR-100-5p, confirming low variability between two methods. The A549/DDP was established from A549 in our laboratory, by exposing A549 to gradually increasing DDP concentrations, until the final concentration at 1μg/ml. To avoid the influence of drug to the A549/DDP cells, they were cultured in a drug-free medium for at least two weeks before gene expression analysis. miRNA expression of A549 and A549/DDP was then analzyed.
2016-08-16 | E-GEOD-85603 | biostudies-arrayexpress
Project description:To investigate the difference of miRNA expression between lung cancer cell A549 and its DDP-resistant cell strain A549/DDP, we have employed miRNA microarray expression to discover the difference expression of miRNAs of A549 cells and A549/DDP. We conducted RT-qPCR to examine the expression levels of top differential expressed miRNAs, namely, miR-197-5p, miR-4443, miR-642a-3p, miR-27b-3p and miR-100-5p, confirming low variability between two methods.
2016-08-16 | GSE85603 | GEO
Project description:'MicroRNA (miRNA) is a type of non-coding RNA that regulates the expression of its target genes by interacting with the complementary sequence of the target mRNA molecules. Recent evidence has shown that genotoxic stress induces miRNA expression, but the target genes involved and role in cellular responses remain unclear. We examined the role of miRNA in the cellular response to X-ray irradiation by studying the expression profiles of radio-responsive miRNAs and their target genes in cultured human cell lines. We found that expression of miR-574-3p was induced in the lung cancer cell line A549 by X-ray irradiation. Overexpression of miR-574-3p caused delayed growth in A549 cells. A predicted target site was detected in the 3''-untranslated region of the enhancer of the rudimentary homolog (ERH) gene, and transfected cells showed an interaction between the luciferase reporter containing the target sequences and miR-574-3p. Overexpression of miR-574-3p suppressed ERH protein production and delayed cell growth. This delay was confirmed by knockdown of ERH expression. Our study suggests that miR-574-3p may contribute to the regulation of the cell cycle in response to X-ray irradiation via suppression of ERH protein production. mRNA expression were compared between the A549 cell overexpressing a radio-responsive miRNA and in the A549 cells suppressing the miRNA. Five miRNAs (miR-181d, miR-565, miR-574-3p, miR-629* and miR-766) were examined. Microarray experiments were performed with triplicate for each experiment.'
2014-03-14 | E-GEOD-30131 | biostudies-arrayexpress
Project description:Background: The aim of this study was to identify differentially expressed miRNAs in high-grade serous ovarian carcinoma (HGSC), clear cell ovarian carcinoma (CCC) and ovarian surface epithelium (OSE). Selected miRNAs were evaluated for association with clinical parameters including survival, and miRNA/mRNA interactions were mapped. Results: Differentially expressed miRNAs between HGSC, CCC and OSE were identified, of which 18 were validated (p<0.01) using RT-qPCR in an extended cohort. Compared with OSE, miR-205-5p was the most overexpressed miRNA in HGSC. miR-200 family members and miR-182-5p were the most overexpressed in HGSC and CCC compared with OSE, whereas miR-383 was the most underexpressed. miR-509-3-5p, miR-509-5p, miR-509-3p and miR-510 were among the strongest differentiators between HGSC and CCC, all being significantly overexpressed in CCC compared with HGSC. High miR-200c-3p expression was associated with poor progression-free (p=0.031) and overall (p=0.026) survival in HGSC. Interacting miRNAs and mRNA targets, including those of a TP53-related pathway presented previously, were identified in HGSC. Conclusions: Several miRNAs are overexpressed in HGSC and CCC compared with OSE, including the miR-200 family, among which miR-200c-3p is associated with survival in HGSC. A set of miRNAs differentiates CCC from HGSC, of which miR-509-3-5p and miR-509-5p are the strongest classifiers. Several interactions between miRNAs and mRNAs in HGSC were mapped.
2014-02-13 | GSE47841 | GEO
Project description:To identify differentially expressed genes by anti cancer treatments (microRNAs or siRNAs) in human cancer, several cell lines (pancreatic cancer, esophageal cancer, bladder cancer, prostate cancer, renal cell carcinoma and lung squamous cell carcinoma) were subjected to Agilent whole genome microarrays. Human cell lines (Panc-1, sw1990, TE8, TE9, A549, MRC-5, BOY, T24, PC3, C4-2, 786-O, A-498 and EBC-1) were treated with miRNAs (miR-375, miR-29a, miR-26a, miR-145-5p, miR-145-3p, miR-218, miR-320a), siRNAs (si-MMP11, si-LAMP1, si-LOXL2, si-PLOD2, si-UHRF1, and si-FOXM1).
2016-04-13 | E-GEOD-77790 | biostudies-arrayexpress
Project description:Cancer-associated fibroblasts (CAFs) promote tumor progression through several mechanisms. MicroRNAs (miRNAs) play a key role in CAFs tumor-promoting properties, however, their role in CAFs from different topological areas in lung cancer progression remains unclear. This study aimed to characterize the miRNA expression profile of fibroblasts isolated from matched tumor front (F-CAFs), inner tumor (In-CAFs), and normal adjacent tissue (NFs) in lung adenocarcinoma, using microarray analysis and RT-qPCR. Proliferation and invasion assays of A549 lung cancer cells were performed in the presence of conditioned medium from F-CAFs, In-CAFs and NFs. Pathway enrichment analysis and miRNA-target networks were performed to identify tumorigenesis-related miRNAs. Both F-CAFs and In-CAFs enhanced the proliferation and invasion of A549 cells compared to NFs; however, F-CAFs showed a significantly stronger effect than In-CAFs. qPCR demonstrated three downregulated miRNAs in F-CAFs versus NFs (miR-145-3p, miR-299-3 p, miR-505-3p) and two in F-CAFs versus In-CAFs (miR-410-3p, miR-485-5p). Deregulated miRNAs showed significant association to “pathways in cancer”, “Wnt signaling pathway”, and “TGF-beta signaling pathway”, targeting tumor-promoting growth factors as IGF1 and VEGFA. Our findings suggest that deregulated miRNAs in F-CAFs, which showed the strongest effect on the invasive and proliferative capacity of A546 cancer cells, present potential predictive association with tumor-promoting properties.
2018-04-28 | GSE113805 | GEO
Project description:Analysis of changes in gene expression after transfection with miR-552-3p or miR-608 mimic in A549 cells Total RNA was obtained from A549 cells transfected with miR-552-3p or miR-608 or negative control mimic, and gene expression was compared using microarrays.
2015-12-15 | E-GEOD-62723 | biostudies-arrayexpress