Project description:Orangutans are an endangered species whose natural habitats are restricted to the Southeast Asian islands of Borneo and Sumatra. For potential species conservation and functional genomics studies, we derived induced pluripotent stem cells (iPSCs) from cryopreserved skin fibroblasts obtained from captive orangutans. We report the gene expression profiles of iPSCs and skin fibroblasts derived from orangtuans.
Project description:Orangutans are an endangered species whose natural habitats are restricted to the Southeast Asian islands of Borneo and Sumatra. For potential species conservation and functional genomics studies, we derived induced pluripotent stem cells (iPSCs) from cryopreserved skin fibroblasts obtained from captive orangutans. We report the gene expression profiles of iPSCs and skin fibroblasts derived from orangtuans. The overall goal was to evaluate gene expression biomarkers of pluripotency in iPSCs and skin fibroblasts derived from PBD-ZSD patients and healthy controls. Dermal fibroblast cultures from 2 orangutans were reprogrammed into iPSCs by transfection with retroviruses designed to express the human OCT4, SOX2, KLF4 and c-MYC cDNA. Fibroblasts and iPSCs were cultured in 1:1 ratio of DMEM:F12 medium supplemented with 20% KOSR (knock-out serum replacement) at 37°C with 5% CO2 until confluence for RNA extraction. The overall goal was to evaluate gene expression biomarkers of pluripotency in iPSCs and original fibroblast cultures.
Project description:Proteome data for human induced pluripotent stem cells (iPSCs, 201B7) and human dermal fibroblasts (HDFs, HDF1388) were acquired using a Bruker timsTOFpro. These mass spectrometry data were analyzed using DIA-NN 1.8.1.
Project description:Leptin receptors (Lepr) are expressed by various types of stem cells including mesenchymal stem cells, hematopoietic stem cells, embryonic stem cells, and induced pluripotent stem cells. Leptin/lepr signaling is also a central regulator of metabolism. However, the role of Lepr in pluripotency, metabolic disease progression and growth development is still controversial and poorly understood. In the present study, we explored the Lepr function in disease progression, pluripotency and metabolism using day 14.5 mouse embryonic fibroblasts (MEFs) and their reprogrammed induced pluripotent stem cells (iPSCs) as model system. We successfully reprogrammed mouse embryonic fibroblasts into iPSCs from control and db/db (Lepr deficient) mice. Using a global quantitative proteomic approach, we identified key pathways regulating pluripotency, metabolic homeostasis and protein synthesis during fetal growth and development. The Lepr MEFs show abnormal metabolic abnormalities and mitochondrial dysfunction as compared to control MEFs, while Lepr iPSCs show upregulated elongated factor 4 e (eIF4e) protein synthesis pathway and altered Oct4 and Stat3 pathways which are involved in normal fetal growth development. Furthermore, chip analysis revealed that higher Stat3 binding on the promoter of eIF4e in Lepr iPSCs leads to higher protein synthesis in these cell types as compared to control iPSCs. Finally, point mutation corrected Lepr iPSCs using CRISPR/Cas9 gene editing method showed recovered pluripotency, metabolic and protein synthesis pathways. In conclusion, we have shown that Lepr signaling is involved in the regulation of the metabolic properties and key developmental pathways in MEFs and stemness of pluripotent stem cells. Disruption of Lepr signaling has been shown to involve in the pathophysiology of various diseases including obesity and diabetes. The generated MEFs and iPSCs in this present study provide valuable tools to explore the role of Lepr in the progression of obesity, diabetes and metabolic abnormalities, and to find the putative targets of Lepr signaling during the development of these diseases.
Project description:We generated induced pluripotent stem cell lines (iPSCs) from paired RTS patient/ parental control fibroblasts. These iPSCs were differentiated to mesenchymal stem cells (MSCs), and then to osteoblasts. We next compared the transcriptional profiles of MSCs, pre-osteoblasts, and osteoblasts.
Project description:Single-end bulk RNA sequencing results of cell lines derived from patients described with NGLY1 deficiency as well as parent and CRISPR edited controls. The cell lines represent 4 different cell types: fibroblasts, lymphoblastoid cells, induced pluripotent stem cells (iPSCs) and neural progenitor cells (NPCs.).
Project description:SMEI patient induced pluripotent stem cells (iPSCs) were derived from patient fibroblasts. In order to test the similarity between patient iPSCs and human embryonic stem (hES) cells, microarry analysis was carried out on SMEI patient iPSCs and human embryonic stem cells. SMEI patient iPSCs were derived from patient fibroblasts. Human embryonic stem cells were derived from human blastocyst.And we use the microarray method to compare the global expression of patient iPSCs and embryonic stem cells.
Project description:Genome-wide occupancy of the circadian clock Cryptochrome1 (CRY1) was compared between somatic differentiated mouse embryonic fibroblasts (MEFs) and pluripotent stem cells including precursor-induced pluripotent stem cells (iPSCs), iPSCs, and embryonic stem cells (ESCs)