SiRNA mediated HDAC1 knockdown in the LNCaP prostate cancer cell line
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ABSTRACT:
PROVIDER: PRJNA670796 | ENA |
REPOSITORIES: ENA
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Project description:siRNA mediated HDAC1 knockdown in the LNCaP prostate cancer cell line.
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Project description:The transcription factor HOXC6 is upregulated in human prostate cancer. SiRNA knockdown of HOXC6 induces apoptosis in LNCaP cells while upregulation rescued LNCaP cells from siRNA-induced apoptosis. We used microarrays to identify the genes whose expression underly the anti-apoptotic and proliferative effects of HOXC6 in LNCaP cells. Experiment Overall Design: LNCaP cells were transiently transfected with a cocktail of 5 siRNAs to HOXC6 to a final concentration of 100nM, with a HOXC6 gene expression vector, or control siRNA and vector. Cells were collected a 48hours post-transfection
2008-10-20 | E-GEOD-9182 | biostudies-arrayexpress
Project description:The transcription factor HOXC6 is upregulated in human prostate cancer. SiRNA knockdown of HOXC6 induces apoptosis in LNCaP cells while upregulation rescued LNCaP cells from siRNA-induced apoptosis. We used microarrays to identify the genes whose expression underly the anti-apoptotic and proliferative effects of HOXC6 in LNCaP cells. Keywords: transient overexpression and knockdown
2008-07-01 | GSE9182 | GEO
Project description:Here we performed transcriptional profiling of the prostate cancer cell lines LNCaP and 22Rv1 comparing non-targeting siRNA treatment versus siRNAs targeting SWI/SNF complex proteins (SMARCA2, SMARCA4, and SMARCB1). Goal was to determine the effect of SWI/SNF knockdown on gene expression in prostate cancer. Two-condition experiment: non-targeting siRNA versus SWI/SNF-siRNA treated cells. Three SWI/SNF proteins were targeted: SMARCA2, SMARCA4, and SMARB1. Biological replicates: 1 control replicate, 2 treatment replicates per SWI/SNF protein. Technical replicates: 1 replicate per SWI/SNF protein. Cell lines: 22Rv1 and LNCaP.
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Project description:Transcriptional profiling of LNCaP prostate cancer cells comparing control siRNA-treated LNCaP cells with LNCaP cells treated with siRNAs targeting Prostate Cancer Associated Transcript-1 (PCAT1), an uncharacterized long non-coding RNA. High-throughput sequencing of polyA+ RNA (RNA-Seq) in human cancer shows remarkable potential to identify both novel disease-specific markers for clinical uses and uncharacterized aspects of tumor biology, particularly non-coding RNA (ncRNA) species. To illustrate this approach, we employed RNA-Seq on a cohort of 102 prostate tissues and cells lines and found that aberrant expression profiles of novel tissue-specific ncRNAs distinguished benign, cancerous, and metastatic tumors. Among these, a novel prostate-cancer specific ncRNA (termed PCAT-1) defined a subset of aggressive cancers with low expression of the epigenetic regulator EZH2, a component of the Polycomb Repressive Complex 2 (PRC2) commonly upregulated in metastatic cancers. In vitro assays for core PRC2 genes indicated that the PRC2 complex directly binds and represses PCAT-1, and that the PCAT-1 transcript reciprocally binds PRC2, suggesting a regulatory feedback mechanism. Importantly, knockdown of PCAT-1 in cells with high levels of endogenous PCAT-1 transcript showed changes in cell proliferation and transcriptional regulation of several key biological processes, including cell cycle. Finally, we showed that ncRNA expression signatures, including PCAT-1, were effective for the non-invasive detection of prostate cancer, and that high ncRNA expression signature values correlate with high-grade histology. The findings presented herein establish the utility of RNA-Seq to comprehensively identify unannotated ncRNAs that define human disease states and characterize PCAT-1 as a novel regulator of cell proliferation mechanistically linked to PRC2 and contributory to translational clinical tests for prostate cancer. Two-condition experiment: Control-siRNA-treated versus PCAT1-siRNA-treated LNCaP cells. Biological replicates: 3 control replicates, 3 treatment replicates.
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