Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA391086 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR5714380_1.fastq.gz | Fastqsanger.gz | |||
| SRR5714380_2.fastq.gz | Fastqsanger.gz | |||
| SRR5714390_1.fastq.gz | Fastqsanger.gz | |||
| SRR5714390_2.fastq.gz | Fastqsanger.gz | |||
| SRR5714400_1.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 74 |
Similar Datasets
Project description:Assessing the developmental and malignant potential of human pluripotent stem cells
| PRJNA383525 | ENA
Project description:Assessing the developmental potential of human pluripotent stem cells using Pluritest
| PRJNA383140 | ENA
Project description:The International Stem Cell Initiative compared three common approaches for assessing pluripotent stem cells (PSC). The formation of teratomas in vivo, or embryoid bodies (EB) in vitro, provide direct tests of differentiation, whereas PluriTest predicts pluripotency through bioinformatic analysis of transcriptomes of undifferentiated cells. We studied the teratomas by histology and TeratoScore, which analyzes gene expression in each tumor. For the EB assay, we assessed differentiation under neutral conditions and under conditions promoting differentiation to ectoderm, mesoderm, or endoderm lineages. Comparison of each method showed that all assays predict pluripotency, but they have different endpoints that provide different insights. For example, tumors from a subset of lines also contained undifferentiated cells and yolk sac elements that indicate possible malignant potential. This characteristic was not detected by the other two methods. Our results highlight the need for multiple assays to assess both pluripotency and potential malignancy in clinical applications of PSCs.
2017-06-20 | GSE100223 | GEO
Project description:The International Stem Cell Initiative compared three common approaches for assessing pluripotent stem cells (PSC). The formation of teratomas in vivo, or embryoid bodies (EB) in vitro, provide direct tests of differentiation, whereas PluriTest predicts pluripotency through bioinformatic analysis of transcriptomes of undifferentiated cells. Here we studied the starting poulations of pluripotent stem cells using an Illumina HumanHT-12 V4.0 expression beadchip assays
2017-06-20 | GSE97884 | GEO
Project description:Teratoma formation is the gold standard assay for testing the capacity of human stem cells to differentiate into all embryonic germ layers. Although widely used, little effort has been made to transform this qualitative assay into a quantitative one. Using gene expression data from a wide variety of cells, we created a gene scorecard representing tissues from all three germ layers as well as an extraembryonic tissue. A calculated grade using this gene list successfully distinguishes pluripotent stem cell-initiated teratomas from malignant tumors, thereby translating cell potency into a quantitative measure. This new methodology, named TeratoScore, thus assesses the pluripotency of human cells, and is easily performed using an open-source code. The new teratoma database also allowed us to examine the gene expression differences between tumors with a diploid karyotype and those initiated by aneuploid cells. We found that while teratomas originating from aneuploid cells pass the TeratoScore benchmark for pluripotency, they exhibit aberrant gene expression congruent with human chromosomal syndromes (such as Down syndrome). This gene expression signature is significantly different from that of teratomas originating from diploid cells, particularly in central nervous system-specific genes, suggesting aberrant teratomas may be beneficial for in vivo disease modeling. Teratoma formation followed by TeratoScore analysis can rapidly assess cell potency and allows comparison between different pluripotent cell lines. Total RNA was extracted from hPSC (diploid or aneuploid)-derived teratomas using RNeasy mini kit (Qiagen), according to the manufacture instruction. RNA was subjected to Human Genome U133 Plus 2.0 microarray platform (Affymetrix); washing and scanning were performed according to the manufacturer’s protocol
2015-06-10 | E-GEOD-64669 | biostudies-arrayexpress
Project description:Teratoma formation is key for evaluating differentiation of human pluripotent stem cells into embryonic germ layers and serves as a model for understanding stem cell differentiation and developmental processes. Its potential for insights into epigenome and transcriptome profiling is significant. This study integrates the analysis of the epigenome and transcriptome of hESC-generated teratomas, comparing transcriptomes between hESCs and teratomas. It employs cell type-specific expression patterns from single-cell data to deconvolve RNA-Seq data and identify cell types within teratomas. Our results provide a catalog of activating and repressive histone modifications, while also elucidating distinctive features of chromatin states. Construction of an epigenetic signature matrix enabled the quantification of diverse cell populations in teratomas and enhanced the ability to unravel the epigenetic landscape in heterogeneous tissue contexts. This study also includes a single cell multiome atlas of expression (scRNA-Seq) and chromatin accessibility (scATAC-Seq) of human teratomas, further revealing the complexity of these tissues. A histology-based digital staining tool further complemented the annotation of cell types in teratomas, enhancing our understanding of their cellular composition. This research is a valuable resource for examining teratoma epigenomic and transcriptomic landscapes and serves as a model for epigenetic data comparison.
2024-01-29 | GSE249376 | GEO
Project description:Teratoma formation is key for evaluating differentiation of human pluripotent stem cells into embryonic germ layers and serves as a model for understanding stem cell differentiation and developmental processes. Its potential for insights into epigenome and transcriptome profiling is significant. This study integrates the analysis of the epigenome and transcriptome of hESC-generated teratomas, comparing transcriptomes between hESCs and teratomas. It employs cell type-specific expression patterns from single-cell data to deconvolve RNA-Seq data and identify cell types within teratomas. Our results provide a catalog of activating and repressive histone modifications, while also elucidating distinctive features of chromatin states. Construction of an epigenetic signature matrix enabled the quantification of diverse cell populations in teratomas and enhanced the ability to unravel the epigenetic landscape in heterogeneous tissue contexts. This study also includes a single cell multiome atlas of expression (scRNA-Seq) and chromatin accessibility (scATAC-Seq) of human teratomas, further revealing the complexity of these tissues. A histology-based digital staining tool further complemented the annotation of cell types in teratomas, enhancing our understanding of their cellular composition. This research is a valuable resource for examining teratoma epigenomic and transcriptomic landscapes and serves as a model for epigenetic data comparison.
2024-01-29 | GSE229726 | GEO
Project description:Teratoma formation is key for evaluating differentiation of human pluripotent stem cells into embryonic germ layers and serves as a model for understanding stem cell differentiation and developmental processes. Its potential for insights into epigenome and transcriptome profiling is significant. This study integrates the analysis of the epigenome and transcriptome of hESC-generated teratomas, comparing transcriptomes between hESCs and teratomas. It employs cell type-specific expression patterns from single-cell data to deconvolve RNA-Seq data and identify cell types within teratomas. Our results provide a catalog of activating and repressive histone modifications, while also elucidating distinctive features of chromatin states. Construction of an epigenetic signature matrix enabled the quantification of diverse cell populations in teratomas and enhanced the ability to unravel the epigenetic landscape in heterogeneous tissue contexts. This study also includes a single cell multiome atlas of expression (scRNA-Seq) and chromatin accessibility (scATAC-Seq) of human teratomas, further revealing the complexity of these tissues. A histology-based digital staining tool further complemented the annotation of cell types in teratomas, enhancing our understanding of their cellular composition. This research is a valuable resource for examining teratoma epigenomic and transcriptomic landscapes and serves as a model for epigenetic data comparison.
2024-01-29 | GSE229719 | GEO
Project description:Assessing relevant differences between human induced pluripotent stem (iPS) cells and human embryonic stem (ES) cells is important, given that such differences may impact their potential therapeutic use. We used microarray to profile the changes in global gene expression arising from the reprogramming of somatic cells to induced pluripotent stem cells. Comparison of gene expression between human embryonic stem cells (HES-3), induced pluripotent stem cells (ES4SKIN) and its parental fibroblasts (FORESKIN). A pair of biololical replicates were analysed for each cell line.
2011-01-05 | E-GEOD-26451 | biostudies-arrayexpress
Project description:Assessing relevant differences between human induced pluripotent stem (iPS) cells and human embryonic stem (ES) cells is important, given that such differences may impact their potential therapeutic use. We used microarray to profile the changes in global gene expression arising from the reprogramming of somatic cells to induced pluripotent stem cells. Comparison of gene expression between human embryonic stem cells (HES-3), induced pluripotent stem cells (ESIMR90) and its parental fibroblasts (IMR90). A pair of biololical replicates were analysed for each cell line.
2011-01-05 | E-GEOD-26453 | biostudies-arrayexpress