One of strategies to regenerate cartilage defect is transplantation of mesenchymal stem cells (MSCs). Improvements of therapeutic potential of MSCs are needed to achieve successful cartilage regeneration by transplantation of a limited number of cells. Aggregated culture is a popular method in ES and iPS cells to maintain or enhance their potentials. Here we investigated gene expression profile of aggregated MSCs. 621 genes were up-regulated and 409 genes were down-regulated more than 5-fold in MSC-aggregates compared with the number in MSCs in a monolayer culture. The most up-regulated gene was BMP2, which is one of the genes involved in chondrogenesis. Anti-inflammatory genes were also up-regulated in MSC-aggregates. The microarray data for selected genes were confirmed by real-time PCR.
Properties and usefulness of aggregates of synovial mesenchymal stem cells as a source for cartilage regeneration.
Specimen part, Treatment, Subject
View SamplesMicroarray experiments were performed using Arabidopsis wild type plants (Col-0) and srk2cf double knockout mutants to investigate functions of two osmotic stress-activated protein kinases, SRK2C and SRK2F. Transcription profiles of wild type and mutants were compared under abscisic acid (ABA) treatment for 0, 1 and 4 h.
Two closely related subclass II SnRK2 protein kinases cooperatively regulate drought-inducible gene expression.
Age, Time
View SamplesMicroarray experiments were performed using Arabidopsis wild type plants (Col-0) and srk2cf double knockout mutants to investigate functions of two osmotic stress-activated protein kinases, SRK2C and SRK2F. Transcription profiles of wild type and mutants were compared under drought stress for 0, 1 and 4 h.
Two closely related subclass II SnRK2 protein kinases cooperatively regulate drought-inducible gene expression.
Age, Time
View SamplesOur objective is to clarify the function of EWS-POU5F1 chimera.
Function of EWS-POU5F1 in sarcomagenesis and tumor cell maintenance.
Cell line
View SamplesWe used microarrays to detail the global gene expression of primary RPE and immortalized RPE.
Identification of a Gene Encoding Slow Skeletal Muscle Troponin T as a Novel Marker for Immortalization of Retinal Pigment Epithelial Cells.
Specimen part, Cell line
View SamplesThe sclera maintains and protects the eye ball, which receives visual inputs. The aim of this study is to identify characteristics of the human sclera as one of the connective tissues derived from the neural crest and mesoderm. We have here demonstrated microarray data of cultured human scleral cells.
Human sclera maintains common characteristics with cartilage throughout evolution.
No sample metadata fields
View SamplesWe performed the GeneChip analysis to identify multiple extracellular determinants such as cytokines, cell membrane-bound molecules, and matrix responsible for cardiomyogenic differentiation, and evaluated the statistical significance of differential gene expression by the NIA array analysis (http://lgsun.grc.nia.nih.gov/ANOVA/) (Bioinformatics 21: 2548), a web-based tool for microarrays data analysis.
Gremlin enhances the determined path to cardiomyogenesis.
No sample metadata fields
View SamplesWe have examined the biological effect of EWS/ETS in human MPCs using UET-13 cells that are obtained by prolonging the lifespan of human bone marrow stromal cells using the retroviral transgenes hTERT and E7. By exploiting tetracycline-inducible systems for expressing EWS/ETS (EWS/FLI1 and EWS/ERG), we investigated candidates for genes whose expression is regulated by EWS/ETS in human MPCs.
Inducible expression of chimeric EWS/ETS proteins confers Ewing's family tumor-like phenotypes to human mesenchymal progenitor cells.
No sample metadata fields
View SamplesFor identification of candidate genes that is specifically expressed in Ewing family tumor (EFT) cells, we performed DNA microarray-based global expression profiling using Affymetrix Human Genome U133 Plus 2.0 Array and analyxed expression profiles from EFT cell lines (7 lines), neuroblastoma (NB) cell lines (3 lines), a Rhabdomyosarcoma (RMS) cell line, and a human immortalized mesenchymal progenitor cells UET-13 cells.
Inducible expression of chimeric EWS/ETS proteins confers Ewing's family tumor-like phenotypes to human mesenchymal progenitor cells.
No sample metadata fields
View SamplesWe used microarrays to detail the global gene expression of human induced pluripotent stem cells
Tumorigenicity-associated characteristics of human iPS cell lines.
Cell line
View Samples