Homo sapiens strain:Human
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA259392 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR1557953.fastq.gz | Fastqsanger.gz | |||
| SRR1557953_1.fastq.gz | Fastqsanger.gz | |||
| SRR1557953_2.fastq.gz | Fastqsanger.gz | |||
| SRR1557954.fastq.gz | Fastqsanger.gz | |||
| SRR1557954_1.fastq.gz | Fastqsanger.gz |
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Project description:Mucoepidermoid carcinomas (MEC) is the most common salivary gland malignancy. To date, advanced and nonresectable MEC have poor prognosis and no effective treatment. The CRTC1-MAML2 fusion oncogene, which is associated with more than 50% of MEC, consists of the N-terminal CREB-binding domain of the CREB transcriptional co-activator CRTC1 and the C-terminal transcriptional activation domain of the Notch transcriptional co-activator MAML2. CRTC1-MAML2 fusion was found to interact with CREB and constitutively activate their transcriptional targets. To investigate the contribution of the transcription factor CREB to mediate the fusion target gene expression, gene expression profiling analysis were performed in two salivary gland tumor cell lines (including fusion-positive H3118 MEC cells and fusion-negative HSY parotid adenocarcinoma cells) before and after CREB knockdown. This study demonstrated that CRTC1-MAML2 co-activation of CREB is a major mechanism underlying CRTC1-MAML2-mediated transcriptional regulation. Two salivary gland tumor cell lines were used in this study, including fusion-positive H3118 MEC cells and fusion-negative HSY parotid adenocarcinoma cells. The CREB knock down was performed with three biological replicates for each group. Both fusion-positive MEC H3118 cells and fusion-negative parotid adenocarcinoma HSY cells were stably transduced with pLKO.1-based shRNA targeting luciferase gene (shLuc, control) or CREB (shCREB). The cells were independently cultured and RNAs were then harvested 72 hours after transduction for microarray analysis.
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