Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA147829 | ENA |
REPOSITORIES: ENA
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Project description:We have generated iPSCs from monosomy X (Turner Syndrome), trisomy 8 (Warkany Syndrome 2), trisomy 13 (Patau Syndrome) and partial trisomy 11;22 (Emanuel Syndrome), using either skin fibroblasts from affected individuals or amniocytes from antenatal diagnostic tests. These cell lines stably maintain the karyotype of the donors and behave like embryonic stem cells (ESCs) in all tested assays. Turner Syndrome iPSCs were used for further studies including global gene expression analysis and tissue-specific directed differentiation. Multiple clones displayed lower levels of the pseudoautosomal genes ASMTL and PPP2R3B than the controls. Moreover, they could be transformed into neural-like, hepatocyte-like and heart-like cells but displayed insufficient up-regulation of the pseudoautosomal placental gene CSF2RA during embryoid body (EB) formation. These data support that abnormal organogenesis and early lethality in Turner Syndrome are not caused by a tissue-specific differentiation blockade but rather involves other abnormalities including impaired placentation. Global gene expression profiling with DNA microarrays showed that 3 TS iPSC clones corresponding to the same patient showed a global gene expression pattern similar to ESCs and euploid iPSCs, and very different from donor cells .We detected transcriptomic changes between TS iPSCs and the other ESCs/iPSCs but these variations did not follow a pattern and in fact all pluripotent cell lines clustered together. For DNA microarray analysis, all cells were treated with Trizol, followed by RNA extraction and hybridization.
2011-10-03 | E-GEOD-32527 | biostudies-arrayexpress
Project description:Induced pluripotent stem cells-derived GABAergic interneurons Transcriptome in Down syndrome
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Project description:mouse embryonic fibroblasts, embryonic stem cells, and induced pluripotent stem cells were compared via metabolomic analysis
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Project description:Heart deformity is the leading cause of mortality in Turner syndrome (TS) patients. To investigate the dysregulated ceRNA network in cardiomyocytes (CMs) of TS patients, we employed a ceRNA microarray to profile the mRNA-lncRNA-circRNA network in induced pluripotent stem cells (iPSCs) and their derived CMs from healthy donors (WT) and TS patients.
2023-08-06 | GSE239758 | GEO
Project description:Reprogramming-associated aberrant DNA methylation determines hematopoietic differentiation capacity of human induced pluripotent stem cells [Undifferentiated human induced pluripotent stem cells]
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Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs.
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Project description:Induced pluripotent stem cells (iPSCs) offer opportunity for insight into the genetic requirements of the X chromosome for somatic and germline development. Turner syndrome is caused by complete or partial loss of the second sex chromosome; while more than 90% of Turner cases result in spontaneous fetal loss, survivors display an array of somatic and germline clinical characteristics. Here, we derived iPSCs from Turner syndrome and control individuals and examined germ cell development as a function of X chromosome composition. We analyzed gene expression profiles of derived iPSCs and in vitro differentiated cells by single cell qRT-PCR and RNA-seq. We whoed that two X chromosomes are not necessary for reprogramming or pluripotency maintenance. Genes that escape X chromosome inactivation (XCI) between control iPSCs and those with X chromosome aneuploidies revealed minimal expression differences relative to a female hESC line. Moreover, when we induced germ cell differentiation via murine xenotransplantation of iPSC lines into the seminiferous tubules of busulfan-treated mice, we observed that undifferentiated iPSCs, independent of X chromosome composition, when placed within the correct somatic environment, are capable of forming early germ cells in vivo. Results indicate that two intact X chromosomes are not required for germ cell formation; however, clinical data suggest that two sex chromosomes are required for maintenance of human germ cells. RNA-seq of H9 cells, iPSCs from Turner syndrome and control individuals and in vitro differentiated cells
2015-05-18 | E-GEOD-55939 | biostudies-arrayexpress
Project description:DNA Methylation Dynamics in Human Induced Pluripotent Stem Cells over Time
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Project description:Augmented hematopoiesis in induced pluripotent stem cells derived from patients with Down syndrome.
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