Project description:The multifunctional protein tyrosine phosphatase PRL-1 (Gene Symbol: PTP4A1) has been identified as an important oncogene with roles in promoting cell proliferation, survival, migration, invasion, and metastasis. However, little is currently known about the signaling pathways through which it mediates its effects. We used Affymetrix Human Genome U133 Plus 2.0 arrays to examine the global molecular changes of gene expression occurring in response to stable PRL-1 overexpression in human embryonic kidney 293 (HEK293) cells. Total RNA was extracted from triplicate cultures of HEK293 cells stably overexpressing PRL-1 (HEK293-PRL-1) and HEK293 cells stably transfected with empty pcDNA4 vector (HEK293-Vector). Samples were hybridized to Affymetrix HG U133 Plus 2.0 microarrays (1 array per sample for a total of 6 arrays). One of the arrays hybridized with a PRL-1 transfected sample was excluded after qRT-PCR demonstrated that this sample did not exhibit increased PRL-1 expression over the level of the empty vector controls. The remaining 2 HEK293-PRL-1 samples both expressed PRL-1 at least 2-fold higher than any of the 3 empty vector controls.
Project description:Microarray analysis of A673 cell line stably transfected with empty vector pc3.1 versus A673 cell lines stably transfected with pcDNA3.1-LMO3-BORCS5
Project description:The protein tyrosine phosphatase PRL-1 (Gene Symbol: PTP4A1) has been identified as an important oncogene with roles in promoting cell proliferation, survival, migration, invasion, and metastasis. However, little is currently known about the signaling pathways through which it mediates its effects. Studies have shown a relationship between PRL-1 and the expression or activity levels of various molecules involved in integrin-mediated cell signaling. These integrin-responsive players can promote re-arrangements in the actin cytoskeleton that are central to cell motility, invasion, and metastasis. Therefore, to investigate the effects of PRL-1 overexpression in human embryonic kidney 293 (HEK293) cells, we used qRT-PCR to examine the expression levels of 184 genes which either were identified by microarray and proteomic analysis to be differentially expressed in response to PRL-1 or have known associations to integrin-mediated signaling, cytoskeletal remodeling, and/or cell motility. Total RNA was extracted from duplicate cultures of HEK293 cells stably overexpressing PRL-1 (HEK293-PRL-1) and HEK293 cells stably transfected with empty pcDNA4 vector (HEK293-Vector). Samples were analyzed using custom TaqMan Array 96-well Plates to examine the expression of 184 genes with known involvement in or association with signaling pathways related to integrin-mediated cell adhesion, cytoskeletal remodeling, and/or cell motility.
Project description:Affymetrix microarray and qRT-PCR expression profile of HEK293 cells stably transfected with PRL-1 (PTP4A1) or empty pcDNA4 vector (control)
Project description:We used microarrays to detail the global gene expression in stably transfected HEK 293T cells of the over-expression of truncated FMRP containing 295 amino acid residues, which were compared with control (stably transfected HEK 293T cells of empty lentiviral vector (pLEX-MCS).
Project description:V5 tagged JMJD6 was stably overexpressed in MCF7 cells (JOE); empty vector transfected MCF7 cells were used as a control (Vec). Transcription profiling was carried out is duplicate.
Project description:Transcriptional profiling of human embryo kidney cells comparing control HEK293 transfected with empty vectors cells with HEK293 cells transfected with pcDNA3-ZNF191 (or ZNF191 siRNA vector). We searched for early ZNF191 target genes by using a transient overexpression and knockdown strategy in the human embryo kidney (HEK293) cells. A table of gene targets of transcription factor ZNF191 commonly identified by both strategies is appended below as a supplementary file.