Targeting S6K1 and S6K2 by siRNA and sgRNA in LN229 GBM cells
Ontology highlight
ABSTRACT: To systematically identify the function of S6K1 and S6K2 in glioblastoma cells, LN229 cells were stably transduced with Cas9, control non-targeting sgRNA (sgNT), or sgRNAs targeting S6K1 or S6K2. The cells were then transiently transfected with non-targeting siRNAs (siNT), or siRNA pools targeting S6K1 or S6K2. RNA sequencing was performed to compare cellular responses to inactivation of single or combination S6 kinases.
Project description:We carried out CRISPR-Cas9 functional screen focused on AP-1 bound enhancers that are activated upon oncogenic stress. The screen discovered Enh.AP1.OIS1 - an enhancer bound by AP1 that is required for activation of oncogene-induced senescence (OIS) response. We applied RNA-seq analysis to RASG12V-activated BJ cells transduced with either sgRNAs targeting AP-1 bound enhancer (sgRNA-69 or sgRNA71), or sgRNA targeting the target gene FOXF1 or non-targeting control sgRNA (sgNT)
Project description:Transcriptional analysis of concequent lack of rpS6 kinase activity in mice livers hepatocytes due to deletion of S6 kinases 1 and 2 (S6K1 and S6K2).
Project description:The goal of this study is to compare gene expression profiles of PTEN WT and KO GBM cells when they are growing in vivo. Isogenic PTEN WT or KO LN229 GBM cells were subcutaneously implanted into Balb/c nude mice (two in each group) to form tumor. At the 30th day tumors were harvested and total RNA was isolated. RNA-seq analysis was performed to examine the differential express pattern of the two type of xenografts.
Project description:To identify the biological pathways regulated by PARP3, RNAseq of the WT and PARP3-/- LN229 human glioblastoma cells were performed. Samples were collected from subconfluent cells for total RNA isolation and RNA sequencing
Project description:Five different sgRNAs targeting mCherry gene (wild-type, without a spacer, and three truncated variants) were used to investigate the off-target effects of CRISPR interference.
Project description:We report the application of unit of bortezomib and panobinostat on LN229 cell , and further explored the mechanism of drugs on GBM cells.
Project description:tRNase ZL-utilizing efficacious gene silencing (TRUE gene silencing) is an RNA-mediated gene expression control technology that has therapeutic potential. This technology is based on the properties of tRNase ZL that it can cleave any target RNA at any desired site under the direction of an appropriate artificial small guide RNA (sgRNA) and that cytosolic tRNase ZL can modulate gene expression by cleaving mRNA under the direction of cellular 5M-bM-^@M-2-half-tRNA or microRNA as sgRNA. In order to estimate a number of potential therapeutic heptamer-type sgRNAs for hematological malignancies, we constructed an sgRNA library composed of 156 heptamer-type sgRNAs, and examined how the sgRNAs affect viability of leukemia and myeloma cells. And we found that 20 of the 156 sgRNAs can efficiently induce apoptosis in at least one of the cancer cell lines. Furthermore, we demonstrated that 4 of the 20 effective sgRNAs can reduce growth rates of HL60 cells in mouse xenograft models. DNA microarray analysis for changes in an mRNA profile by these four heptamer-type sgRNAs suggested at least one candidate target mRNA that contains a potential tRNase ZL target site for each sgRNA. Changes in gene expression in HL60 cells were measured after 18-hour incubation in the absence or presence of one of five different heptamer-type sgRNAs. *Heptamer sequences requested but not provided by submitter
Project description:Purpose: Characterization of transcriptomic alterations upon HPS90 inhibition in human LN229 and T98G glioblastoma cells in vitro. Methods: LN229 and T98G glioblastoma cells were treated with 10 nM of the HSP90 inhibitor NW457 or the vehicle control for 24 h, and total RNA was subjected to 3' RNA sequencing. Results: Distinct transcriptomic alterations were observed, dominated by a transcriptional upregulation of the heat shock response. Conclusion: HSP90 inhibition resulted in distinct transcriptomic alterations and a clear upregulation of the heat shock response.