Project description:Divergence of K-562 genomes through in vitro clonal evolution revealed by comparing three sublines. Comparison of three K-562 sublines
Project description:To explore the mechanisms of autophagy in the regulation of vascular tumour cells, we generated three autophagy-related genes, Fip200, Atg5 and Atg7, knockout vascular tumor cells in 562 cell line by CRISPR-Cas9-based sgRNAs. Three independent replicates of mRNA samples were prepared from each KO cells and subjected to RNA-sequencing in comparison to three samples from control 562 cells. We examined changes in gene expression by transcriptional profiling of Fip200 KO, Atg5 KO, and Atg7 KO cells, compared to control 562 cells respectively.
Project description:We analyzed the global effect of c-Myb knockdown by sequencing the transcriptomes of K-562 cells transfected with control siRNA and si2992 (MYB knockdown), as well as K-562 cells stably expressing TY-tagged wild type c-Myb and c-Myb D152V transfected with si2992
Project description:K-562 cells were cultured in standard growth conditions and used to produce five distinct cell cultures: wild type, FHC-silenced,wild type hemin-treated, FHC-silenced hemin-treated. Then the cells were lysed and RNA was extracted using TRIzol method.Total RNA were fluorescently labelled, amplified and hybridized in triplicate for 18 hours on Illumina HumanHT12 v.4.0 Expression BeadChips and after scanning, analysis was performed with GenomeStudio v.2010.3 software, for quality control and mRNA expression analysis.
Project description:A total of 432 genes were found to be differentially expressed in M1SF370 bacterial population internalized in Detroit 562 human pharyngeal cells when compared with the same strain incubated in the absence of Detroit 562 cells. While most of them (349/432 i.e. 80.8%) were up regulated, 83 genes were down regulated contributing to 19.2% of the total differentiated genes. The major contributor of the latter category was phage-related genes (35 genes). Almost ¼ of these genes (106) belonged to a category of Unknown or possible predicted function. Most notably, up-regulated genes belonged to amino acid transport , cell division, cell envelope biogenesis, DNA replication correlated well with up-regulated 67 genes belonged to translation and ribosomal structure. Further, up-regulation of 12/15 virulence-related genes indicated that human host cell internalized bacteria are highly virulent as compared to laboratory grown culture in test-tubes.
Project description:Data set to accompany : Anatomic demarcation by positional variation in fibroblast gene expression programs. PLoS Genet. 2006 Jul;2(7):e119. PMID: 16895450 Fibroblasts are ubiquitous mesenchymal cells with many vital functions during development, tissue repair, and disease. Fibroblasts from different anatomic sites have distinct and characteristic gene expression patterns, but the principles that govern their molecular specialization are poorly understood. Spatial organization of cellular differentiation may be achieved by unique specification of each cell type; alternatively, organization may arise by cells interpreting their position along a coordinate system. Here we test these models by analyzing the genome-wide gene expression profiles of primary fibroblast populations from 43 unique anatomical sites spanning the human body. Large-scale differences in the gene expression programs were related to three anatomic divisions: anterior-posterior (rostral-caudal), proximal-distal, and dermal versus nondermal. A set of 337 genes that varied according to these positional divisions was able to group all 47 samples by their anatomic sites of origin. Genes involved in pattern formation, cell-cell signaling, and matrix remodeling were enriched among this minimal set of positional identifier genes. Many important features of the embryonic pattern of HOX gene expression were retained in fibroblasts and were confirmed both in vitro and in vivo. Together, these findings suggest that site-specific variations in fibroblast gene expression programs are not idiosyncratic but rather are systematically related to their positional identities relative to major anatomic axes. Set of arrays organized by shared biological context, such as organism, tumors types, processes, etc. Computed