In order to screen candidate genes that discriminate genotoxic hepatocarcinogens from nongenotoxic ones, we compared gene expression in the liver of mice treated with 6 genotoxic hepatocarcinogens or 5 nongenotoxic hepatocarcinogens.
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Specimen part, Treatment, Time
View SamplesHuman mesenchymal stem cells are expected to be a useful tool for cellular therapy. We used microarrays to detail the gene expression profiles and selected candidate biomarkers that indicate the culture stage of the cells.
Gene expression profiling of human mesenchymal stem cells for identification of novel markers in early- and late-stage cell culture.
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View SamplesWe found constitutive upregulation and higher degree induction of drug metabolism and disposition-related genes in a three-dimensional HepG2 culture. The upregulated genes are those believed to be regulated by different regulatory factors. The global gene expression analysis by Affymetrix GeneChip indicated that altered expressions of microtubule-related genes may change expressed levels of drug metabolism and disposition genes. Stabilization of the microtubule molecules with docetaxel, a tubulin stabilizing agent, in the two-dimensional culture showed gene expression patterns similar to those in the three-dimensional culture, indicating that culture environment affects drug metabolism functions in HepG2 cells.
Global gene expression changes including drug metabolism and disposition induced by three-dimensional culture of HepG2 cells-Involvement of microtubules.
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View SamplesHuman mesenchymal stem cells (hMSCs), which are multipotent cells to differentiate into several cell types, are expected to be a useful tool for cellular therapy. In some clinical settings, hMSCs have immuno-suppressive effects for GVHD (Graft-versus-host disease) and are expanded in vitro before application. To find biomarkers that indicate the culture stage of hMSCs, we performed microarray analysis for hMSCs derived from bone marrow, using Affymetrix GeneChip Human Genome U133 Plus 2.0 (54,613 probe sets).
Gene expression profiling of human mesenchymal stem cells for identification of novel markers in early- and late-stage cell culture.
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View SamplesVECELL 3-D insert is newly developed culture scaffold with collagen-coated ePTFE (expanded polytetrafluoroethylene) mesh. Effects of VECELL 3-D insert on the functionalities of HepG2, human hepatocellular carcinoma cell line, were analyzed.
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View SamplesWe examined the effect of grape seed extract (GSE), which are known to protect neurons against oxidative stress, on primary cultures of hippocampal astrocytes. GSE increased interleukin-6 (IL-6) expression.
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View SamplesCancer cells have wide variety of gene expression profile. The objective of the study is to reveal the cancer-associated gene expression profile.
Gene expression signatures for identifying diffuse-type gastric cancer associated with epithelial-mesenchymal transition.
Specimen part
View SamplesThe overall data contains expression profile of rat genes of cardiac fibroblasts. G-protein signaling is regulated in cardiac fibroblasts. The expresssion of angiotensin II receptor or cytokine such as interleukin is regulated by PTX (which is suggested to suppress Gi function) treatment.
Pertussis toxin up-regulates angiotensin type 1 receptors through Toll-like receptor 4-mediated Rac activation.
Specimen part
View SamplesWe used an Aldefluor assay system to study the signaling pathways that regulate the frequency and maintenance of ALDH-positive cell population in MCF-7 cells as a CSC model.
Sphingosine-1-phosphate promotes expansion of cancer stem cells via S1PR3 by a ligand-independent Notch activation.
Cell line
View SamplesMicrocystins are produced by the cyanobacteria, most commonly Microcystis aerginosa. Upon ingestion, toxic microcystins are actively absorbed by fish, birds and mammals where they are primarily liver toxins.
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Sex, Age, Specimen part, Compound, Time
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