Similar Datasets
Project description:Compared the global gene expression profiles of HD- and CON-iPSC-derived neurons We used microarrays to detail the global programme of gene expression for comparing the global gene expression profiles of HD- and CON-iPSC-derived neurons and facilitating studies of medium spiny neurons (MSN)-degenerative processes of Huntington's Disease (HD). By using a step-wise in vitro differentiation protocol combining EB formation, neural induction by small molecules, treatment with inhibitors of the TGFß pathway (SB431542) and the BMP pathway (LDN193189), and mechanical isolation/purification of neural progenitors and neurons, we induced 60-70% of control iPSCs or HD-iPSCs to differentiate into GABA- and DARPP-32- double positive neurons.
2015-09-02 | E-GEOD-59051 | biostudies-arrayexpress
Project description:We collected cells at three key stages of human iPSC-derived cardiomyocytes (day 0, day 8, and day 15), and performed proteomic and ubiquitinomic analysis.
2025-09-21 | PXD068663 |
Project description:Induced pluripotent stem cells (iPSCs) are a valuable resource for neurological disease-modeling and drug discovery, due to their ability to differentiate into neurons reflecting the genetics of the patient from which they are derived. iPSC-derived cultures, however, are highly variable due to differences in culture conditions. We investigated the effect of iPSC passage number on differentiation to optimize the generation of functional, mature sensory neurons (iPSC-dSNs). Three iPSC lines were differentiated into iPSC-dSNs at passage numbers within each of the following ranges: low (LP; 5-10), middle (MP; 20-26), and high (HP; 30-38). Morphology and pluripotency of the parent iPSCs were assessed prior to differentiation at each passage number. iPSC-dSNs were evaluated based on electrophysiological properties and expression of key neuronal markers. All iPSC lines displayed the same morphology and were similarly pluripotent across passage numbers. iPSC-dSNs were also morphologically comparable across passage numbers. However, the expression levels of neuronal markers and an analysis of sodium channel function indicated greater maturity in LP iPSC-dSNs. Our results demonstrate that lower passage numbers may be better suited for differentiation into peripheral sensory neurons. Further studies are warranted to elucidate factors that may contribute to the variability associated with iPSC passage number.
2022-07-19 | GSE193571 | GEO
Project description:Co-cultures of lung epithelium and mesenchyme are useful tools to study epithelial-mesenchymal crosstalk in lung development and disease. However, many previous attempts to generate such co-cultures have yielded poor juxtaposition between the epithelial and the mesenchymal lineage. In addition, induced pluripotent stem cell (iPSC)-derived co-cultures often contain generic mesenchyme that is not necessarily lung-specific. We sought to establish co-cultures of purified mouse iPSC-derived lung-specific mesenchyme and iPSC-derived lung epithelial progenitors. We used a mouse iPSC line carrying a lung mesenchyme-specific reporter/tracer (Tbx4-LERGFP) to generate lung mesenchymal progenitors by directed differentiation via a lateral plate mesodermal progenitor state (induced lung mesenchyme, iLM). In parallel we differentiated a mouse embryonic stem (ES) cell line carrying a Nkx2-1mCherry reporter into lung epithelial progenitor cells using our established directed differentiation protocol. We then combined the purified lung epithelial and mesenchymal progenitor cells and co-cultured them in distal or proximal differentiation media for 1 week on Matrigel. We find that cells self-organize into complex 3-dimensional organoids with closely juxtaposed epithelial and mesenchymal cells. Furthermore, co-culture affects the molecular phenotype of both lineages. Our iPSC-derived co-culture model can provide an inexhaustible source of cells for studying lung development, modeling diseases, and developing therapeutics.
2023-05-08 | GSE228313 | GEO
Project description:HESC-H9 and iPSC lines 3.5, 3.6 and 3.12 were analyzed using Affymetrix microarray before and after Definitive Endoderm (DE) formation. DE was induced using the ActivinA differentiation protocol described by D'Amour et al., 2006 (PMID: 16258519) Clustering analysis of transcripts that were differentially regulated during DE formation indicated that iPSC lines 3.5 and 3.12 differentiate in manner that is highly similar to HESC-H9 cells iPSC line 3.6 had a more divergent transcriptional profile.
2010-12-25 | GSE25557 | GEO
Project description:The lung mesenchyme plays important roles in lung development and is affected in many respiratory diseases, yet relatively little is known about the biology of lung mesenchymal progenitors. We sought to establish an induced pluripotent stem cell (iPSC)-based model to study lung mesenchyme development and epithelial-mesenchymal interactions. We generated a mouse iPSC line carrying a lung mesenchyme-specific reporter/tracer to establish a protocol for differentiation into lung mesenchymal progenitors. We derived lung mesenchyme from iPSCs both by directed differentiation via a lateral plate mesodermal progenitor state (induced lung mesenchyme, iLM), and by co-development during lung epithelial differentiation (co-developed lung mesenchyme, cLM). We found that directed differentiation via a lateral plate mesoderm progenitor was not only more efficient, but also yielded engineered lung mesenchymal cells that were more similar to primary lung mesenchyme from day 12.5 mouse embryos, as determined by single cell RNAseq. Our iPSC-derived population will provide an inexhaustible source of cells for studying lung development, modeling diseases, and developing therapeutics.
2023-05-12 | GSE203245 | GEO
Project description:Induced pluripotent stem cells (iPSCs) have been derived from various somatic cell populations through ectopic expression of defined factors. It remains unclear whether iPSCs generated from different cell types are molecularly and functionally similar. We use expresson profiling to determine differnces in iPSCs with different cell of origin. Using a secondary system, we derived iPSCs from tail tip-derived fibroblasts (TTF-iPSC), splenic B cells (B-iPSC), bone marrow-derived granulocytes (Gra-iPSC) , skeletal muscle precursors (SMP-iPSC) and T cells (T-iPSC).
2010-07-20 | E-GEOD-22043 | biostudies-arrayexpress
Project description:It has been postulated that during human fetal development all cells of the lung epithelium derive from an embryonic endodermal NKX2-1+ precursor, however, this hypothesis has not been formally tested due to an inability to purify or track this theorized cell for detailed characterization. Here we engineer and developmentally differentiate NKX2-1GFP reporter pluripotent stem cells (PSCs) in vitro to generate and isolate a human primordial lung progenitor that expresses NKX2-1 but is initially devoid of markers of differentiated lung lineages. As these progenitors move through the earliest moments of lung lineage specification from definitive endoderm they can be imaged in real time or isolated for time-series global transcriptomic profiling. We performed microarray analysis of 5 timepoints of human iPSC to lung directed differentiation compared to week 21 human fetal lung and Neural NKX2-1+ cell controls. These profiles indicate that evolutionarily conserved, stage-dependent developmental gene signatures are expressed in primordial human lung progenitors. Using a TALEN-targeted fluorescent reporter to purify iPSC-derived lung progenitors (C17 NKX2-1GFP) we analyzed cells at major developmental time points in vitro (undifferentiated iPSC, definitive endoderm, anterior foregut endoderm and sorted NKX2-1GFP+ and NKX2-1GFP- cells on day 15 and day 28 of the protocol). We also differentiated NXK2-1GFP iPSC in a neural protocol and isolated neural NKX2-1GFP+ cells. Approximately 90% pure human fetal lung epithelial cells from week 21 embryos were used as controls.
2017-05-02 | GSE83310 | GEO
Project description:Expression charcaterization of an internal protocol developed to differentiate RPE cells
| PRJNA357267 | ENA
Project description:Non-neuronal cell types such as astrocytes can contribute to Parkinson’s disease (PD) pathology. The G2019S mutation in leucine-rich repeat kinase 2 (LRRK2) is one of the most common known causes of familial PD. To characterize its effect on astrocytes, we developed a protocol to produce midbrain-patterned astrocytes from human induced pluripotent stem cells (iPSCs) derived from PD LRRK2 G2019S patients and healthy controls. In order to understand the effect of this mutation on astrocyte function, we compared the gene expression profiles of iPSC-derived midbrain-patterned astrocytes from PD patients with those from healthy controls.
2018-09-22 | GSE120306 | GEO