The gene expression profiling of human Glioblastoma multiforme and normal brain tissues
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ABSTRACT: We used microarrays to investigate the whole genome gene expression level changes of LncRNAs in human Glioblastoma multiforme (GBM) and normal brain tissues, and try to find out some LncRNA associated with the tumorigenesis of GBM. The human LncRNA microarray analysis of 9 samples (5 GBM and 4 normal brain tissues) were completed. Total RNA from each sample was quantified and RNA integrity was assessed using standard denaturing agarose gel electrophoresis. Total RNA of each sample was used for labeling and array hybridization. Array scanning using the Agilent Scanner G250C. Scanned images were then imported into NimbleScan software (version 2.5) for expression data analysis. Differentially expressed LncRNAs were filtered out for further study.
Project description:To investigate the umbilical cord lncRNA profiles in gestational diabetes-induced macrosomia, the umbilical cord vein blood from normal and gestational diabetes-induced macrosomia was hybridized to a microarray containing probes representing 33,000 lncRNA genes. Quantitative real-time polymerase chain reaction (qPCR) was used to validate selected differentially expressed lncRNAs. The gene ontology (GO), pathway and network analysis were performed. The microarray identified 8814 lncRNAs that were expressed in the umbilical cord blood, of which 349 were significantly upregulated and 892 were significantly downregulated (fold-change M-bM-^IM-% 2.0) in GDM group. The highest enriched GOs targeted by downregulated transcripts were biological regulation. Pathway analysis indicated that nine pathways corresponded to downregulated transcripts. Thirty pairs of GDM macrosomia and normal controls were divided into three subgroups randomly, and the umbilical cord vein blood from each subgroup was mixed, and hybridized to a microarray.
Project description:We compared the gene expression in wild type CD4+ T cells stimulated with agonistic anti-TIGIT 4D4 antibody to that of isotype and TIGIT-deficient (KO) controls.
Project description:Using gene expression profiling of mammary tumors generated in a mouse model for BRCA1-associated breast cancer we have searched for markers that correlate with response to the anti-cancer drugs docetaxel or cisplatin. To validate the results, the analysis was done on 2 different platforms (39K Mouse Exonic Evidence Based Oligonucleotide (MEEBO), and 45K Illumina Sentrix mouse V6 single-channel bead arrays). Moreover, we analyzed mouse mammary tumors that had acquired docetaxel resistance on the MEEBO platform.
Project description:Three experiments, corresponding to the three figures in the article, are represented in this set. Each experiment was an ex vivo treatment time course as described in the paper. For each of the experiments, mRNA was isolated at the indicated time points, cDNA was directly prepared by reverse transcription in the presence of Cy5-labeled dUTP, and the expression profiled using Cy3-labeled cDNA prepared by reverse transcription of Stratagene Universal Human Reference RNA as a control. One experiment, corresponding to Figure 1 in the paper, is a set of infection, or mock-infection time courses, in which each of three cell types: primary human dermal fibroblasts, primary human macrophages, or HELA cells were respectively infected with Monkeypox virus, Vaccinia virus, or Ebola virus, or mock-infected. Infected cells or mock-infected cells were harvested and lysed at the indicated times after infection and mRNA isolated for analysis following the protocol described above. The second experiment, corresponding to Figure 2 in the paper, is a set of treatments of human dermal fibroblasts, each in 24-well plates with either: PBS only (mock), interferon alpha (IFN-alpha) at 0.6 pM final concentration (Sigma, St. Louis, MO), tumor necrosis factor alpha (TNF-alpha) at 0.6 pM final concentration (Sigma), PMA at 25ng/mL final concentration plus ionomycin at 1micromolar final concentration, polyinosinic-polycytidylic acid as potassium salt (poly(I-C)) at 100 microg/mL final concentration (Sigma), Escherichia coli 055:B5 lipopolysaccharide (LPS) at 1microg/mL final concentration (Sigma), or dexamethasone at 1 micromolar final concentration (Sigma). Cells were harvested and lysed at the indicated times and mRNA isolated for analysis following the protocol described above. The third experiment, corresponding to Figure 3 in the paper, is a set of infections or mock-infections of human dermal fibroblasts, or human primary macrophages, with Monkeypox virus or Vaccinia virus, respectively, followed by treatment with either ionomycin + phorbol myristic acid (PMA) or with poly(I-C). The intention of the experiment was to investigate whether prior infection altered the response of the cells to the chemical agents. Cells were harvested and lysed at the indicated times and mRNA isolated for analysis following the protocol described above. Description of sample characteristics: Time: Time after infection or Mock infection Infection: Ebola-Zaire/killed Monkeypox Virus/Mock infection/Monkaypox Virus/None/Pre infection/Vaccinia NY/Vaccinia WR Compound Based Treatment: Dexamethasone/Interferon-alpha/Ionomycin + PMA/LPS/PBS/polyinosinic-polycytidylic acid/TNF-alpha Cell Type: Primary Human Dermal Fibroblast/Primary Human Macrophage/HeLa Figure in article: Numbers group slides that are represented in the same figure of the article. A stimulus or stress experiment design type is where that tests response of an organism(s) to stress/stimulus. e.g. osmotic stress, behavioral treatment
Project description:97 triple negative tumors were selected from the fresh-frozen tissue bank of the Netherlands Cancer Institute and gene expression profiles were generated using 35K oligonucleotide microarrays. Human breast carcinomas were snap frozen in liquid nitrogen within one hour after surgery and stored in the fresh-frozen tissue bank of the Netherlands Cancer Institute. RNA from a pool of more than 100 unselected fresh frozen breast carcinomas were isolated and pooled to form the reference to which each individual breast carcinoma is hybridized.
Project description:165 primary breast carcinomas were selected to study the gene expression profile in relation to the risk of developping local recurrence after breast conserving therapy; in addition 15 recurred tumors were profiled for comparison to their primary tumor.
Project description:A comparison of Ky mouse mutant soleus muscles versus wildtype soleus muscles. Hybridisation of 3 Mouse SGC 7.5k oligo slides, using 3 independent pools of 10 mice (5 male, 5 female)for both WT and mutant animals.
Project description:Gene expression array analysis on a series of ten different histological special types of invasive breast carcinomas (tubular, micropapillary, mucinous A, mucinous B, endocrine, apocrine, metaplastic, medullary, adenoid cystic, invasive ductal carcinoma with osteoclastic giant cells) and invasive lobular carcinoma.<br><br>Note: this experiment was reloaded into ArrayExpress in August 2010 to include mappings between raw and processed data files. It now includes additional dye-swap combined normalized data files.