Project description:To investigate the impact of PJA2 on the progression of colorectal cancer, we employed lentiviral constructs to establish PJA2-overexpressing SW-480 cell lines. Subsequently, we conducted gene expression profiling analysis using RNA-seq data obtained from both vector SW-480 cells and PJA2-overexpressing SW-480 cells.
Project description:Find the possible signaling pathways which contribute to the cell growth inhibition effect of SW-treated AGS cells Global gene expression profiling is an ideal technique to obtain useful clues for exploration of the anticancer mechanism of SW. Through comparing microarray results between solvent- and SW-treated cells, differentially expressed genes were obtained (>1.5 fold). The microarray results were validated using real-time RT-PCR. We used the KEGG database, STRING database and GO database for further ananlysis, and therefore got the possible signaling pathways underlying the anticancer effect of SW.
Project description:To find the possible signaling pathways which contribute to the anticancer effect of SW-treated HepG2 cells Global gene expression profiling is an ideal technique to obtain useful clues for exploration of the anticancer mechanism of SW. Through comparing microarray results between solvent- and SW-treated cells, differentially expressed genes were obtained (>1.5 fold). The microarray results were validated using real-time RT-PCR. We used the KEGG database, STRING database and GO database for further ananlysis, and therefore got the possible signaling pathways underlying the anticancer effect of SW.
Project description:Find the possible signaling pathways which contribute to the cell growth inhibition effect of SW-treated AGS cells Global gene expression profiling is an ideal technique to obtain useful clues for exploration of the anticancer mechanism of SW. Through comparing microarray results between solvent- and SW-treated cells, differentially expressed genes were obtained (>1.5 fold). The microarray results were validated using real-time RT-PCR. We used the KEGG database, STRING database and GO database for further ananlysis, and therefore got the possible signaling pathways underlying the anticancer effect of SW. We analyzed total RNA samples of solvent- and SW-treated AGS cells using the Affymetrix Human Gene 1.0 ST platform. No techinical replicates were performed.
Project description:The Polycomb repressive complex 2 (PRC2) is an essential epigenetic regulator that deposits repressive H3K27me3 for transcriptional gene silencing in eukaryotes. The PRC2-mediated gene silencing process occurs in two steps: the initial H3K27me3 deposition at the nucleation region, and the subsequent spreading of H3K27me3 over the entire gene. Lack of H3K27me3 spreading gives rise to a metastable state that could lead to loss of silencing. H3K27me3 spreading is thus a key step critical for the establishment of stable long-term Polycomb silencing in both animals and plants.Here, we uncover that Arabidopsis thaliana PICKLE (PKL), a member of the conserved Chromodomain Helicase DNA-binding (CHD) family of chromatin remodeling ATPase13, is dispensable for the nucleation but especially required for the efficient spreading of H3K27me3 at thousands of Polycomb target genes. PKL localizes to the spreading regions in a non-DNA-sequence-specific manner through its SANT-SILDE domain. PKL then upregulates the chromatin density by its CHROMODOMAIN and ATPase domain , enabling the H3K27me3 methyltransferase CURLY LEAF (CLF) to deposit H3K27me3 on nucleosomes in the spreading regions to facilitate the H3K27me3 spreading.