ABSTRACT: Difference expression analyses before and after human fucosyltransferase gene 1 transfection into ovarian cancer clear cell line (Human cancer array)
Project description:75% ovarian epithelial tumor overexpresses Lewis y antigen, which notably strenthen such malignant biological behaviors as metastasis, drug resistance and proliferation. The key enzyme of Lewis y synthesis is human fucosyltransferase gene 1(hfut1). Through transfecting hfut1 into Lewis y low expressing cell line RMG-I, we got a pair of cell lines. We hypothesized that Lewis y antigen plays a major role in ovarian canceration . Using gene arrays, we comprehensively profiled mRNA differential expression between fut1-pretransfected and posttransfected clear cell of human epithelial OvCa. We expected that over-expression of lewis y antigen would lead to higher expression of genes associated with growth, metastasis,proliferation and so on. we established ovarian tumor cell line RMG-I-H by stably transfecting human fucosyltransferase gene 1 into cell line RMG-I. RMG-I-H overexpresses Lewis y antigen, which is known as a cancer-related tetrasaccharide antigen. We profiled for gene expression both cells pretransfected and posttransfected.
Project description:75% ovarian epithelial tumor overexpresses Lewis y antigen, which notably strenthen such malignant biological behaviors as metastasis, drug resistance and proliferation. The key enzyme of Lewis y synthesis is human fucosyltransferase gene 1(hfut1). Through transfecting hfut1 into Lewis y low expressing cell line RMG-I, we got a pair of cell lines. We hypothesized that Lewis y antigen plays a major role in ovarian canceration . Using gene arrays, we comprehensively profiled mRNA differential expression between fut1-pretransfected and posttransfected clear cell of human epithelial OvCa. We expected that over-expression of lewis y antigen would lead to higher expression of genes associated with growth, metastasis,proliferation and so on. we established ovarian tumor cell line RMG-I-H by stably transfecting human fucosyltransferase gene 1 into cell line RMG-I. RMG-I-H overexpresses Lewis y antigen, which is known as a cancer-related tetrasaccharide antigen. We profiled for tumor-associated gene expression both cells pretransfected and posttransfected.
Project description:Quantitative proteome analyses of ovarian cancer cells (TOV-112D cells) in the following three conditions were carried out.
1: Treatment with transfection reagent for 4 hours followed by treatment with DMSO
2: Treatment with transfection reagent for 4 hours followed by treatment with 100nM Camptothecin
3: Treatment with transfection reagent and 10nM tRNALeu(TAA) for 4 hours followed by treatment with 100nM Camptothecin
Project description:75% ovarian epithelial tumor overexpresses Lewis y antigen, which notably strenthen such malignant biological behaviors as metastasis, drug resistance and proliferation. The key enzyme of Lewis y synthesis is human fucosyltransferase gene 1(hfut1). Through transfecting hfut1 into Lewis y low expressing cell line RMG-I, we got a pair of cell lines. We hypothesized that Lewis y antigen plays a major role in ovarian canceration . Using gene arrays, we comprehensively profiled mRNA differential expression between fut1-pretransfected and posttransfected clear cell of human epithelial OvCa. We expected that over-expression of lewis y antigen would lead to higher expression of genes associated with growth, metastasis,proliferation and so on.
Project description:75% ovarian epithelial tumor overexpresses Lewis y antigen, which notably strenthen such malignant biological behaviors as metastasis, drug resistance and proliferation. The key enzyme of Lewis y synthesis is human fucosyltransferase gene 1(hfut1). Through transfecting hfut1 into Lewis y low expressing cell line RMG-I, we got a pair of cell lines. We hypothesized that Lewis y antigen plays a major role in ovarian canceration . Using gene arrays, we comprehensively profiled mRNA differential expression between fut1-pretransfected and posttransfected clear cell of human epithelial OvCa. We expected that over-expression of lewis y antigen would lead to higher expression of genes associated with growth, metastasis,proliferation and so on.
Project description:To identify the gene signature accounting for the distinct clinical outcomes in ovarian clear cell cancer patients Clear cell ovarian cancer is an epithelial ovarian cancer histotype that is less responsive to chemotherapy and carries poorer prognosis than serous and endometrioid histotypes. Despite this, patients with these tumors are treated in a similar fashion as all other ovarian cancers. Previous genomic analysis has suggested that clear cell cancers represent a unique tumor subtype. Here we generated the first whole genomic expression profiling using epithelial component of clear cell ovarian cancers and normal ovarian surface specimens isolated by laser capture microdissection. Arrays analyzed using BRB ArrayTools and PathwayStudio software was used to identify the signaling pathways. Gene expression profiling was completed for 10 clear cell ovarian cancer specimens and 10 normal ovarian surface epithelium using the Affymetrix human U133 Plus 2.0 Arrays
Project description:We studied the variations of mRNA amounts after Evi1 knockdown or Flag-Evi1 overexpression in SKOV-3 cells. Despites Evi1 discovery in 1988, its recognized role as a dominant oncogene in myeloid leukemia and more recently in epithelial cancers, only a few target genes were known and it was not clear why Evi1 was involved in cancer progression. Here we obtained the genomic binding occupancy and expression data for Evi1 in human ovarian carcinoma cells. We identified numerous Evi1 target cancer genes and genes controlling cell migration and adhesion. Moreover, we characterized a transcriptional cooperation between AP1 and Evi1 that regulated proliferation and adhesion through a feed-forward loop. Furthermore, this study provides human genome-wide mapping and downstream analyses for Evi1 that will be useful for the research community. 16 samples were collected. Each condition was done in 4 replicates, collected 65 hours after transfection. Transfections with control siRNA or Flag-expressing vector were used as controls.