RNA Sequencing of six pairs of gastric cancer
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ABSTRACT:
PROVIDER: PRJNA1045039 | ENA |
REPOSITORIES: ENA
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Project description:Stomach cancer (GC) remains one of the most prevalent tumors globally, ranking third in terms of cancer-related mortality worldwide. Currently, the prognosis for gastric cancer following radical resection is still suboptimal, primarily due to metastasis. Therefore, it is crucial to explore target therapy as a means to address this issue. Circular RNAs (circRNAs) have emerged as pivotal regulators in the development and progression of cancer and hold promise as biomarkers for diagnosing and prognosticating various cancers. However, the precise mechanism by which circular RNA contributes to metastasis in gastric cancer remains unclear. Our objective is to validate the expression profile of circRNA in gastric cancer and investigate its functional role in metastasis within this context.
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Project description:Methylated modifications of genome are common events in carcinogenesis and is involved in the tumorigenesis and progression of various cancers including gastric cancer Methylated DNA immunoprecipitation (MeDIP) combined with a human miRNA tiling microarray analysis demonstrated that there are much methylation differention between gastric cancers and adjacent controls microRNA gene methylation comparison of 3 pairs of gastric cancer and controls
2015-09-14 | E-GEOD-72979 | biostudies-arrayexpress
Project description:The prognosis after curative resection of gastric cancer (GC) remains unsatisfactory, and thus, the development of treatments involving alternative molecular and genetic targets is critical. Circular RNAs (circRNAs), new stars of the non-coding RNA network, have been identified as critical regulators in various cancers. Here, we aimed to determine the circRNA expression profile and investigate the functional and prognostic significance of circRNA in GC. Using next-generation sequencing profiling, we first characterized an abundant circRNA, hsa_circ_0008549, derived from the OSBPL10 gene, and named it circOSBPL10. The expression of circOSBPL10 was found via quantitative real-time RT-PCR (qRT-PCR) to be upregulated in GC tissues, and silencing of circOSBPL10 significantly inhibited gastric cancer cell growth, migration and invasion in multiple experiments. We further confirmed that miR-136-5p is a downstream target of circOSBPL10 using RNA pull-down and luciferase reporter assays. Rescue experiments confirmed that circOSBPL10 regulates biological functions in GC cells via a circOSBPL10-miR-136-5p-WNT2 axis. In vivo experiments showed that circOSBPL10 promotes tumor growth and metastasis in mice. Furthermore, the level of circOSBPL10 was observed to be a prognostic marker of the overall survival and disease-free survival of patients with GC. Taken together, our findings reveal that circOSBPL10 may serve as a new proliferation factor and prognostic marker in gastric cancer.
2018-11-22 | GSE122796 | GEO
Project description:The goal of the project is to analyze different layers of proteome information including protein abundance and post-translational modifications of PGRC gastric tissue samples. Three pairs of human gastric cancer and adjacent normal tissues were extensively characterized by serial enrichments of phosphorylation and N-glycosylation (SEPG) coupled to LC-MS/MS method.
2017-03-31 | MSV000080818 | MassIVE
Project description:27 sample pairs were conducted exon microarrays and 25 sample pairs were retain for our further alternative splicing analysis. 260 genes showed differential expression in more than 50% of our samples and 21 genes among them were validated by real-time PCR. Six genes with splicing events, which were firstly found in gastric cancer, were confirmed by RT-PCR. Keywords: Transcriptome analysis
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Project description:To explor the role of lncRNAs in gastric cancer progression, we performed a microarray analysis to systematically screen the differential expression of lncRNAs between six human gastric cancer tissues and their matched non-tumor tissues
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Project description:Super-enhancer H3K27ac CUT& Tag sequencing of six human gastric cancer tissue samples
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Project description:This is a commercially available Affymetrix chip from 16 pairs of gastric cancer and corresponding adjacent normal tissues, used for screening differentially expressed genes associated with gastric cancer.
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