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Screening target genes of miR-100 in MGC-803 and SK-BR-3 cells

ABSTRACT: We tried to find the target genes of miR-100 in MGC-803 and SK-BR-3 cells, thus we uesd specific miR-100 inhibitor to knock down the level of miR-100 in the cells, with this condition, we used this mRNA microarray to find the genes whose amount changed. and they may be the target genes that miR-100 mediated. Total of four chips, MGC-AMO, MGC-NC, SK-AMO, SK-NC. MGC and SK represents MGC-803 and SK-BR-3 cells respectively. AMO is the specific miR-100 inhibitor and NC is negative control.

ORGANISM(S): Homo sapiens

SUBMITTER: qian jin

PROVIDER: E-GEOD-53909 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Screening target genes of miR-100 in MGC-803 and SK-BR-3 cells

Project description:We tried to find the target genes of miR-100 in MGC-803 and SK-BR-3 cells, thus we uesd specific miR-100 inhibitor to knock down the level of miR-100 in the cells, with this condition, we used this mRNA microarray to find the genes whose amount changed. and they may be the target genes that miR-100 mediated.

2014-01-09 | GSE53909 | GEO

Homo sapiens

Project description:Screening target genes of miR-100 in MGC-803 and SK-BR-3 cells

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Essential Oil from Pinus Koraiensis pinecones Inhibits Gastric Cancer Cells via the HIPPO/YAP Signaling Pathway

Project description:The purpose of this study was to investigate the anti-tumor activity of PEO on MGC-803 cells and its mechanism. Anti-tumor experiments in vitro showed PEO could significantly inhibit the proliferation and migration of MGC-803 cells, and it also could arrest the cell cycle in G2/M phase, decrease the mitochondrial membrane potential and induce apoptosis. Finally, the effects of PEO on genes expression on MGC-803 cells were analyzed by RNA sequencing, and results showed that after treatment with PEO, 100 genes were up-regulated, and 57 genes were down-regulated. According to KEGG pathway and GSEA, FAT4, STK3, LATS2, YAP1 and AJUBA were down-regulated, which are related to HIPPO signaling pathway. Real-time PCR and western blot further confirmed the results of RNA sequencing. These results indicated that PEO may exert anti-tumor activity via the HIPPO/YAP signaling pathway.

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MGC-803 Cells: Control vs. MGC-803 Cells MYBL2 Overexpressed

Project description:MGC-803 Cells: Control vs. MGC-803 Cells MYBL2 Overexpressed

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Characterization of MGC 803 cell line

Project description:Investigation of the mixed origins of the MGC 803 cell line reveals it is a nasopharyngeal HeLa hybrid cell line

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Characterization of mixed origins MGC 803 cell line

Project description:Investigation of the mixed origins of the MGC 803 cell line reveals it is a nasopharyngeal HeLa hybrid cell line

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Construction of a Competing Endogenous RNA Network and Identification of Potential Regulatory Axes in Gastric Cancer Chemoresistance

Project description:Purpose: Emerging evidence highlights the multifunctional role of noncoding RNAs (ncRNAs) in gastric cancer (GC) chemoresistance. However, the comprehensive expression profile and competing endogenous RNAs (ceRNAs) regulatory network of GC chemoresistance remain unanswered. Methods: The whole-transcriptome sequencing (RNA sequencing) was performed to comprehensively analyze the differentially expressed (DE) lncRNAs, miRNAs and mRNAs in cisplatin-resistant cells MGC-803/DDP and GC cells MGC-803. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were conducted to investigate the biological functions implicated with the DEncRNAs. Then, the cisplatin-resistant-related ceRNA network and potential regulatory axes were constructed by bioinformatic analysis. Results: We successfully generated cisplatin-resistant GC cell line MGC-803/DDP. Differential expression analysis showed that a total of 1,936 DElncRNAs, 2,194 DEmRNAs and 174 DEmiRNAs were identified. Functional enrichment analysis indicated that those DEncRNAs were mainly involved in neuroactive ligand-receptor interaction, drug metabolism and Hippo signaling pathway. Subsequently, the cisplatin-resistant-related ceRNA network was constructed with the widely accepted vital chemo-resistant-related genes and signaling pathways. In addition, two constructed regulatory axes (include FAM66C/miR-129-5p/7 mRNAs and SFTA1P/miR-206/FN1 or NRP1) were successfully validated by the Genomic Data Commons (GDC) GC data. Conclusion: The novel ceRNA network and the potential regulatory axes may provide the most comprehensive view of GC chemoresistance to date. Our findings uncovered potential biomarkers for prognostic prediction and novel therapeutic targets for reversing cisplatin resistance in GC.

2021-12-29 | GSE192631 | GEO

Next Generation Sequencing Facilitates Quantitative Analysis of lncRNA PART1 Regulated Transcriptomes

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Gene expression regulated by HBV mRNAs

Project description:HBV mRNAs harboring miR-122 response elements were found to bind and sequester endogenous miR-122. This microarray experiment was carried out to find out differentially expressed genes in Huh7 cells expressing HBV mRNAs. RNA was extracted from Huh7 cells transfected with pcDNA3.1 plasmid containing HBV mRNA with wild type (WT) or mutant (Mut) miR-122 response elements in its 3M-bM-^@M-^Y-UTR or the empty pcDNA3.1 vector (3.1) as a mock. Total RNA was then extracted and processed on Affymetrix microarrays in biological duplicate.

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