Identification of the gene profiling of Wt1GFP expressing cardiomyocytes at different stages of embryonic heart development
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PROVIDER: PRJNA450634 | ENA |
REPOSITORIES: ENA
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Project description:Identification of the gene profiling of Wt1GFP expressing cardiomyocytes at different stages of embryonic heart development [M]
| PRJNA450636 | ENA
Project description:Detailed FACS analyses of enzymatically disaggregated embryonic hearts from Wt1GFPKI mice revealed two distinct types of Wt1-GFP-positive cells based on their GFP expression levels: a Wt1-GFP bright population (H) and a Wt1-GFP dim (M) population. Interestingly, when viewed under the microscope, cultured Wt1GFP+ (M) cells were shown to exhibit synchronous contractions that suggest a cardiomyocyte identity. These observations also imply that a population of low Wt1-expressing cardiomyocytes contributes to the formation of the myocardium.
2019-09-30 | GSE113274 | GEO
Project description:Gene expression in the human foetal heart for a comparison with cardiomyocytes derived from human pluripotent stem cells. Human foetal heart samples were collected from the individual chambers of the heart at various stages of development. This provided the opportunity to perform gene expression analysis and identify genes involved in the formation of the heart in each of the four chambers and at different stages of development. The dataset can be used to benchmark human pluripotent stem cell derived cardiomyocytes (hPSC-CMs) in terms of their maturation state by comparing it to the foetal heart samples. Two commercially available reference RNA sets are included in the analysis in order to characterize future sets of hPSC-CMs. Microarray experiments were performed on human foetal heart samples from first and second trimester hearts, separated in atria and ventricles.
2015-07-22 | E-GEOD-71148 | biostudies-arrayexpress
Project description:Gene expression in the human foetal heart for a comparison with cardiomyocytes derived from human pluripotent stem cells. Human foetal heart samples were collected from the individual chambers of the heart at various stages of development. This provided the opportunity to perform gene expression analysis and identify genes involved in the formation of the heart in each of the four chambers and at different stages of development. The dataset can be used to benchmark human pluripotent stem cell derived cardiomyocytes (hPSC-CMs) in terms of their maturation state by comparing it to the foetal heart samples. Two commercially available reference RNA sets are included in the analysis in order to characterize future sets of hPSC-CMs.
2015-07-22 | GSE71148 | GEO
Project description:This SuperSeries is composed of the SubSeries listed below.
2019-09-30 | GSE113276 | GEO
Project description:Abcg2 expressing VESC in adult heart
| PRJNA938150 | ENA
Project description:Cardiomyocytes exhibit differential growth patterns throughout development. In fetal life the increase in cardiac mass is associated with hyperplastic growth and cardiomyocyte proliferation. The majority of fetal cardiomyocytes are also mononucleated. During the early neonatal period in mice there is a switch from hyperplastic to hypertrophic growth of cardiomyocytes. This period is characterized by bi-nucleation and polyploidization of cardiomyocyte nuclei and a decreased capacity for cardiomyocytes to proliferate and complete cytokinesis. Increases in myocardial mass occur predominantly via hypertrophic growth. Adult mammalian cardiomyocytes are generally accepted to have little or no proliferative capacity and to be terminally withdrawn from the cell cycle. The vast majority of adult murine cardiomyocytes are bi-nucleated. The present study sought to accurately establish the growth pattern of cardiomyocytes throughout development in mice and identify genes associated with the switch from hyperplastic to hypertrophic growth. These cell cycle associated genes are crucial to the understanding of the mechanisms of bi-nucleation, polyploidization and hypertrophy in the neonatal period. Cardiomyocytes were FACS sorted from the hearts of ED11-12 embryos, neonatal day 3-4 and adult (10 week) eGFP ?-MHC mice whereby GFP expression is driven constitutively by the ?-MHC promoter. Gene analyses identified genes whose expression was predicted to be particular to day 3 -4 neonatal cardiomyocytes, compared to embryonic or adult cells. Cell cycle associated genes are crucial to the understanding of the mechanisms of bi-nucleation and hypertrophy in the neonatal period, and offer attractive candidates for manipulation. Total RNA obtained from isolated cardiomyocytes from ED11-12; Neonatal day 3-4 and adult timepoints compared with each other. Several hearts per sample, RNA was pooled within samples. FACS samples were prepared in the following manner: embryonic, neonatal and adult hearts were dissected and dissociated to single cell solution with Liberase Blendzyme 3 (0.1 mg/ml) (Roche Diagnostics), washed and spun down and resuspended in cardiomyocyte isolation buffer (130 mM NaCl; 5 mM KCl; 1.2 mM KH2PO4; 6 mM HEPES; 5 mM NaHCO3; 1 mM MgCl2; 5 mM Glucose).
2010-06-24 | E-GEOD-17020 | biostudies-arrayexpress
Project description:Cardiomyocytes exhibit differential growth patterns throughout development. In fetal life the increase in cardiac mass is associated with hyperplastic growth and cardiomyocyte proliferation. The majority of fetal cardiomyocytes are also mononucleated. During the early neonatal period in mice there is a switch from hyperplastic to hypertrophic growth of cardiomyocytes. This period is characterized by bi-nucleation and polyploidization of cardiomyocyte nuclei and a decreased capacity for cardiomyocytes to proliferate and complete cytokinesis. Increases in myocardial mass occur predominantly via hypertrophic growth. Adult mammalian cardiomyocytes are generally accepted to have little or no proliferative capacity and to be terminally withdrawn from the cell cycle. The vast majority of adult murine cardiomyocytes are bi-nucleated. The present study sought to accurately establish the growth pattern of cardiomyocytes throughout development in mice and identify genes associated with the switch from hyperplastic to hypertrophic growth. These cell cycle associated genes are crucial to the understanding of the mechanisms of bi-nucleation, polyploidization and hypertrophy in the neonatal period. Cardiomyocytes were FACS sorted from the hearts of ED11-12 embryos, neonatal day 3-4 and adult (10 week) eGFP ?-MHC mice whereby GFP expression is driven constitutively by the ?-MHC promoter. Gene analyses identified genes whose expression was predicted to be particular to day 3 -4 neonatal cardiomyocytes, compared to embryonic or adult cells. Cell cycle associated genes are crucial to the understanding of the mechanisms of bi-nucleation and hypertrophy in the neonatal period, and offer attractive candidates for manipulation.
2009-08-01 | GSE17020 | GEO
Project description:Twist transcription factors function as ancestral regulators of mesodermal cell fates in organisms ranging from Drosophlia to mammals. Through lineage tracing of Twist2 (Tw2) expressing cells with tamoxifen-inducible Tw2-CreERT2 and tdTomato reporter mice, we discovered a unique cell population that progressively contributes to multiple cell types in the adult heart, including cardiomyocytes, endothelial cells and fibroblasts. Clonal analysis confirmed the ability of Tw2-derived tdTO+ (Tw2-tdTO+) cells to form CMs in vitro. Within the adult heart, Tw2-tdTO+ cardiomyocytes accounted for ~13% of total cardiomyocytes, the majority of which resulted from fusion of Tw2-tdTO+ cells with existing cardiomyocytes. Tw2-tdTO+ cells also contribute to cardiac remodeling after injury. We conclude that a Tw2-tdTO+ cells participate in lifelong maintenance of cardiac function, at least in part through de novo formation of cardiomyocytes and fusion with preexisting cardiomyocytes, as well as in the genesis of other cellular components of the adult heart.
2020-01-08 | GSE97160 | GEO
Project description:Tbx20 is a transcription factor known to play important roles in embryonic and adult mouse heart function. Our goal in this work was to better understand the function of this gene in embryonic (E11.5) mouse cardiomyocytes that form the developing chambers, expanding our knowledge of its role in heart development. To elucidate the role of Tbx20 in mouse cardiomyocytes, we generated conditional Tbx20 knockout and compared 4 samples with 4 samples of wild-type cardiomyocytes. We found evidence of regulation of cell cycle genes by Tbx20, which are involved in proliferation. In addition, Tbx20 seems to bind and regulate an enhancer of CoupTFII in the atrium, a gene involved in atrial development.
2018-06-14 | E-MTAB-5596 | biostudies-arrayexpress