ABSTRACT: HBV mRNAs harboring miR-122 response elements were found to bind and sequester endogenous miR-122. This microarray experiment was carried out to find out differentially expressed genes in Huh7 cells expressing HBV mRNAs. RNA was extracted from Huh7 cells transfected with pcDNA3.1 plasmid containing HBV mRNA with wild type (WT) or mutant (Mut) miR-122 response elements in its 3’-UTR or the empty pcDNA3.1 vector (3.1) as a mock. Total RNA was then extracted and processed on Affymetrix microarrays in biological duplicate.
Project description:Global expression profiles in Huh7 after infection with Lv-shMEF2D and Lv-scrambled, as well as transfection with siRNA-MEF2D and siRNA-control, were compared to investigate the molecular mechanisms involved in MEF2D-mediated regulation of cell cycle. In order to investigate the molecular mechanisms involved in MEF2D-mediated regulation of cell cycle, we assessed gene expression profiles in Huh7 cells after infection with Lv-shMEF2D and Lv-scrambled, as well as transfection with siRNA-MEF2D and siRNA-control, by cDNA microarray. Analysis of global mRNA expression profile indicated a shift toward G2/M arrest in the cells after downregulating MEF2D expression. The genes that inhibit G2/M transition were found to be expressed in high level in MEF2D-downregulated group, as compared with control group. Meanwhile, mRNA abundance of G2/M transition-promoting genes, except CDC2 and CDC25C, was reduced when MEF2D expression was depressed in Huh7 cells
Project description:To find novel circulating markers associated with prognosis of interferon therapy,We performed microarray analysis of plasma samples in 94 chronic hepatitis B patients Ninety four HBV patients, who underwent PEG-IFN or conventional interferon treatment were enrolled. Their plasma samples before treatment were collected and subject to miRNA array analysis. miRNA profiles from 13 formalin fixed formaldehyde embedded liver biopsy samples were also analyzed to evaluate the correlation between liver and plasma.
Project description:Compare difference Global expression profile of hiPSCs between hESCs and human Somatic cells, showing that hiPSCs and hESCs is consistent in lineages and indicated that the induce method is safe and reliable. There are three groups of samples, each group has two repeated samples, hiPSCs respectively compared with hESCs and human Urine-Derived Cells.
Project description:When PDMSCs were induced to heptocytes in vitro, cells mophology, stem cell markers, mitochondrial metabolism will change according to the differentiated status.But dedifferentiation reverses differentiated cells to a more primitive phenotype and PDMSCs will retain the multilineage potency. Furthermore, it will leads to the alteration of gene expression pattern. We used microarrays to detail the global programme of gene expression underlying dedifferentiation and hepatogenic differentiation prcocesses, we intend to identify distinct classes of differentiated genes during these processes. Human PDMSCs at passage 5 were induced to hepatocytes for 11 days, then the inductive medium was replaced by general culture medium for 1 day. Then human PDMSCs, hepatogenic PDMSCs at 11 days, dedifferentiated PDMSCs were selected for RNA extraction and hybridization on Affymetrix microarrays. To that end, we hand-selected cells at three time-points: before hepatogenic induction (P), hepatogenic PDMSCs at 11 days (H) and dedifferentiated PDMSCs for 1 day (DH) .
Project description:Long noncoding RNAs (lncRNAs) have been implicated in the formation of many different types of tumors. However, expression profiles and potential functions of lncRNAs in non-functioning pituitary adenomas (NFPAs) have not been systematically evaluated. We evaluated the expression profiles and potential functions of lncRNAs in non-functioning pituitary adenomas (NFPAs). 10 formalin-fixed and paraffin-embedded (FFPE) tissue specimens (5 non-functioning pituitary adenomas (NFPAs) and 5 normal pituitaries(NPs)) were selected for RNA extraction and hybridization on Affymetrix microarrays. The NFPAs team was designed as the Tumor group (T), while the NPs team was designed as Normal group (N).
Project description:The high concentration of Well5 cells was resuspended into 20μl PBS, the needle along the tibia direction, before reaching in a breakthrough sense, direct injection cells. At 7 days after injection, proximal tibia was able to reach mass production. At 20 days after injection, the proximal tibia mass increased.If prolonging exposure by BLI,this stage displayedthat tumor cell signalsbegan to lung metastasis. Osteosarcoma orthotopic lung metastasis model was successfully constructed. Total RNA was extracted from sorted osteosarcoma cells of the primary site and lung metastases using Trizol (Invitrogen). We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during osteosarcoma lung metastasis. In support of the notion that fibrosis marks the lung metastasis, the expression of numerous fibrosis-related genes such as FN1, COLs, and MMPs were upregulated from the primary site to lung metastasis in Well5-luc orthotopic inoculation model. Total RNA was extracted from sorted osteosarcoma cells using Trizol (Invitrogen). Gene expression profiling was conducted by Shanghai Biotechnology Corporation using Affymetrix U133 plus 2.0 arrays (Affymetrix, Santa Clara, CA). All data were analyzed according to the manufacturer’s protocol. Raw data generated from Affymetrix CEL files were normalized by RMA background correction; values were log2 transformed. For the enrichment of P values of each GO term, we used Fisher’s exact test to calculate P values and R package stats to calculate FDR (q value) by BH method (www.r-project.org).
Project description:Gliomas arising in the brainstem and thalamus are devastating tumors that are difficult to surgically resect due to their proximity to eloquent brain structures. Here, we performed a comprehesive genomic and epigenomic study, using gene expression and methylation microarrays, to research on th different genomic and epigenetic signatures between brainstem, thalamic, and supratentorial gliomas. Comparison of brainstem, thalamic and supratentorial gliomas
Project description:MicroRNAs (miRNAs) are a class of endogenous non-coding RNAs of about 22 nt in length. Uveal melanoma is the most common intraocular malignant tumor in adults. Our previous result of microarray analysis showed that miR-142-3p was distinctly downregulated in uveal melanoma cells on which miR-142-3p was speculated to have important regulatory effect. In order to better understand the function of miR-142-3p in uveal melanoma and identify its gene targets, we performed transcriptomic microarray analysis. This was done by comparing gene expression profile changes in uveal melanoma cells transfected with miR-142-3p with that transfected with a negative control.
Project description:We knocked down EP300 and examined the expression of lncRNA625 target genes. Gene expression profiling of knockdown samples on cDNA microarrays indicated that EP300 affected expression of several lncRNA625 downstream target genes Stably-transfected KYSE150, transfected with shlncRNA625 or shscramble, were collected and lysed in TRIzol (Life technologies). Microarray experiments were performed following the Affymetrix protocol at the Shanghai Biotechnology Corporation.
Project description:To delineate the putative biological functions for lncRNA625, We performed expression profile from stably-transfected KYSE150 transfected with shlncRNA625 or shscramble for functions of lncRNA625 in ESCC Stably-transfected KYSE150, transfected with shlncRNA625 or shscramble, were collected and lysed in TRIzol (Life technologies). Microarray experiments were performed following the Affymetrix protocol at the Shanghai Biotechnology Corporation.