Project description:HGF sensitizes ovarian cancer cells to chemotherapeutics, e.g. cisplatin (CDDP), through a signaling cascade activated by its MET oncogene encoded receptor and transduced by the p38MAPK. This cascade results in the regulation of a common set of transcripts in three ovarian cancer cell lines, with different genetic profiles and susceptibility to drugs. In order to elucidate the mechanism of HGF dependent cell sensitization to drugs, the transcriptional response of the three ovarian cancer cell lines to HGF and CDDP were studied by microarray based transcription profiling
Project description:The transcriptional response to CDDP of three ovarian cancer cell lines was studied. These lines show different genetic profiles and display different susceptibilities to CDDP. The time and doses that resulted in the apoptotic death of each cell line was identified and used to study the expression profiles associated to CDDP-induced cell death in each cell line. CDDP: cis-diamminedichloroplatinum(II) In order to elucidate the mechanism of CDDP dependent cell susceptibilities to drugs, the transcriptional response of the three ovarian cancer cell lines to CDDP were studied by microarray based transcription profiling
Project description:We studied MET-transformed human primary osteoblasts (MET-HOBs), which we previously turned into osteosarcoma cells by LV driven over-expression of MET oncogene. We obtained distinct MET transformed HOB clones derived from independent events of transgene integration. To characterise the phenotype of the MET-HOB clones we used oligonucleotide microarrays. Expression profiles of MET-HOBs and osteosarcoma cell lines were compared. To characterise the phenotype of the MET-HOB clones we used oligonucleotide microarrays
Project description:We studied MET-transformed human primary osteoblasts (MET-HOBs), which we previously turned into osteosarcoma cells by LV driven over-expression of MET oncogene. We obtained distinct MET transformed HOB clones derived from independent events of transgene integration. To characterise the phenotype of the MET-HOB clones we used oligonucleotide microarrays. Expression profiles of MET-HOBs and parental HOBs were compared. To characterise the phenotype of the MET-HOB clones we used oligonucleotide microarrays
Project description:"The analysis was designed to search for putative seed sequences for miR-126 in the 3M-bM-^@M-^YUTR of up-regulated genes. ECs were co-transfected with anti-miR-126 and a plasmid vector bearing the GFP-coding sequence and three complementary sites for miR-126 downstream. As a consequence of the presence of miR-126 binding sites the GFP expression was under the control of miR-126. Fluorescente cells were the cells transfected with anti-miR-126 oligo. MiR-126 target enrichment analysis was performed on the basis of the Miranda database, as provided by Diana miRGen. Significance was estimated on the basis of hyper geometric distribution p-values comparing the occurrence of miR targets in the signature with respect to the universe, defined as the genes expressed in HUVEC. Frequency of log 2 ratio between the subset of mir-126 targets and the genes which are not targets of miR-126 were plotted, highlighting enrichment of the target of miR in differentially regulated genes. " 3 x biological replicates of transiently trasfected cells with anti miR-126 oligo (LNA), and controls oligo. 2 biological replicates for GFP are included as technical controls.
Project description:Ovarian cancer cells treated with CDDP showed up-regulation of IRF-1 and IRF-7. The expression of putative IRF-1 target genes was modulated. CDDP triggered nuclear translocation of IRF-1 and IRF-1 silencing re-orchestrated the expression profiles of CDDP treated cells. Using microarrays, we evaluated the expression profiles of IRF-1 silenced SK-OV-3.
Project description:Knocking down of CSE1L made ovarian cancer cells, but not other cancer and normal cell lines, sensitized to cisplatin and triggered apoptosis. The nuclear localization in ovarian cancer cells suggested that CSE1L might primarily regulate transcription. . Using microarrays, we evaluated the expression profiles of CSE1L silenced SK-OV-3 and TOV-21G cells
Project description:OPP (1500 ppm gallic acid equivalent (GAE)) was supplemented to BALB/c mice given a normal diet to observe for possible biological activities. Livers, spleens and hearts were harvested six weeks after the feeding regimen for gene expression studies. Results from the separate microarray data analysis carried out on the different organs show that OPP may have pleiotropic biological properties in vivo. Total RNA obtained from livers, spleens and hearts of BALB/c mice given OPP (six weeks after the feeding regimen) were compared to controls given distilled water (liver: three replicates in the treatment group versus four replicates in the control group; spleen and heart: four replicates in the treatment group versus four replicates in the control group for both organs)
Project description:BALB/c mice were given an atherogenic diet and compared to those given a normal diet to observe for gene expression changes caused by the atherogenic diet. Both groups of mice received distilled water as drinks ad libitum. Livers, spleens and hearts were harvested six weeks after the feeding regimen for gene expression studies. Results from the separate microarray data analysis carried out on the different organs show that the atherogenic diet caused oxidative stress and inflammation in the organs. Total RNA obtained from livers, spleens and hearts of BALB/c mice given an atherogenic diet (six weeks after the feeding regimen) was compared to those from organs of mice given normal diet (liver: four replicates in the treatment group versus four replicates in the control group; spleen and heart: three replicates in the treatment group versus four replicates in the control group for both organs)
Project description:OPP (1500 ppm gallic acid equivalent (GAE)) was supplemented to BALB/c mice given an atherogenic diet for six weeks to observe for possible anti-atherogenic effects. The control group received distilled water instead of OPP. Livers, spleens and hearts were harvested six weeks after the feeding regimen for gene expression studies. Results from the separate microarray data analysis carried out on the different organs show that OPP attenuated the effects of the atherogenic diet in the organs. Total RNA obtained from livers, spleens and hearts of BALB/c mice given OPP (six weeks after administration of an atherogenic diet) were compared to controls given distilled water (liver: three replicates in the treatment group versus four replicates in the control group; spleen and heart: three replicates in the treatment group versus three replicates in the control group for both organs)