Project description:We investigated the enriched miRNAs in exosomes from cardiac progenitor cells (CPCs) which were induced by a small molecule-ISX-9 compared with exosomes from human iPSC, embryoid bodies and commerical cardiac progenitor cells.
Project description:Cardiac resident stem/progenitor cells are intensively studied as a potential therapeutic tool for cardiomyopathies. While surface marker expression and ability to generate cardiomyocytes have been characterized in some detail for several types of these progenitors, little is known on how their cardiac differentiation is regulated. Beta sarcoglycan null (bSG KO) mice are a model for limb girdle muscular dystrophy type 2E (LGMD2E), and are characterized by muscular dystrophy and progressive dilated cardiomyopathy. In the present study we isolated and characterized cardiac progenitors (mesoangioblasts) from the small vessels of neonatal hearts bSG KO mice and unexpectedly observed that they differentiate spontaneously into skeletal muscle fibers both in vitro and when transplanted in regenerating muscles and infarcted hearts. The micro array data showed that dystrophic cardiac progenitor and myogenic cells (C2C12) share similar gene expression profile. Keywords: Beta sarcoglycan null mice, muscular dystrophy, cardiac mesoangioblasts, myogenic differentiation Biological triplicates of cardiac wild-type and dystrophic mesoangioblasts isolated from different heart region (atrium, ventricle, aorta) were compared. C2C12 cells were used as positive control for myogenic differentiation.
Project description:We developed a strategy to generate cardiac progenitor cells from human induced pluripotent stem cells using a novel small molecule.miRNA-sequencing results showed different miRNA expression profile among undifferentiated human induced pluripotent stem cells(hiPSCs), DMSO and ISX-9 treated hiPSCs.In comparsion with DMSO treated cells, ISX-9 upregulated several myogenic miRNAs and cardiac hypertrophy related-miRNAs including miR-335, miR-21, miR-30c,miRNA-181a and miR-214.
Project description:Cardiac resident stem/progenitor cells are intensively studied as a potential therapeutic tool for cardiomyopathies. While surface marker expression and ability to generate cardiomyocytes have been characterized in some detail for several types of these progenitors, little is known on how their cardiac differentiation is regulated. Beta sarcoglycan null (bSG KO) mice are a model for limb girdle muscular dystrophy type 2E (LGMD2E), and are characterized by muscular dystrophy and progressive dilated cardiomyopathy. In the present study we isolated and characterized cardiac progenitors (mesoangioblasts) from the small vessels of neonatal hearts bSG KO mice and unexpectedly observed that they differentiate spontaneously into skeletal muscle fibers both in vitro and when transplanted in regenerating muscles and infarcted hearts. The micro array data showed that dystrophic cardiac progenitor and myogenic cells (C2C12) share similar gene expression profile. Keywords: Beta sarcoglycan null mice, muscular dystrophy, cardiac mesoangioblasts, myogenic differentiation
Project description:To analyze stem/progenitor cell function, we purified hepatic progenitor-like cells in human iPS cell culture stimulated with cytokines.
Project description:Combined treatment with NRG-1 and DMSO led to efficient differentiation of iPS into mature ventricular-like cardiac cells, which were capable of preserving cardiac function and tissue viability when transplanted into a mouse model of myocardial infarction.
Project description:To analyze stem/progenitor cell function, we purified hepatic progenitor-like cells in human iPS cell culture stimulated with cytokines. Gene expression in CD13+CD133+ cells derived from human iPS cell culture
Project description:To analyze stem/progenitor cell function, we purified hepatic progenitor-like cells in human iPS cell culture stimulated with cytokines.
Project description:We report the application of MNase-seq (Kent, Adams et al. 2011) to construct genome-wide nucleosome maps from human cells. To date, genome-wide changes in chromatin structure that occur during development in human cells have not been investigated widely. We have constructed and compared genome-wide chromatin maps from undifferentiated human iPS cells and and iPS cells differentiated to neural progenitor cells (NPC).
Project description:Investigation of whole genome gene expression level changes in neural progenitor cells derived from iPS cells generated from umbilical cord mesenchymal cells, compared to neural progenitor cells derived from iPS cells generated fromskin fibroblasts. Analyze the difference between neural progenitor cells derived from iPS cells generated from different origins. The method to induce reprogramming of somatic cells and human iPS cells for neural differentiation is described in Cai J, Li W, Su H, Qin D, Yang J, et al. (2010) Generation of human induced pluripotent stem cells from umbilical cord matrix and amniotic membrane mesenchymal cells. J Biol Chem 285: 11227-11234. and Kim DS, Lee JS, Leem JW, Huh YJ, Kim JY, et al. (2010) Robust enhancement of neural differentiation from human ES and iPS cells regardless of their innate difference in differentiation propensity. Stem Cell Rev 6: 270-281.