Project description:This study compares cardiac induction time-courses using (i) wild-type hESCs subjected to a standard directed differentiation protocol, (ii) EOMES knockout hESCs subjected to the same protocol, and (iii) EOMES KO / TET-ON hESCs subjected to a TET-ON protocol.
Project description:A simultaneous stimulation of the Activin / FGF, BMP, and WNT pathways is required for promoting most efficient mesoderm induction in human embryonic stem cells, as well as for subsequent differentiation into cardiomyocytes. To reveal the contributions of three of these signaling pathways to mesoderm formation and cardiac induction, comparative differentiation time-courses were recorded, varying the combinations of signaling factors administered to the cells during the first day of differentiation: FGF (F) + BMP (B) + WNT (W) treatment during the first 24 hours, or FGF + BMP, or BMP + WNT, or FGF + WNT
2015-11-13 | GSE67154 | GEO
Project description:Embryonic Testis/Ovary Developmental Time Courses
Project description:This study compares directed cardiac differentiation time-courses using (i) HuES6 cells with endogenous ISL1 knockout + inducible ISL1 transgene, and (ii) wild-type HuES6 cells. For the first series, a subset of samples was left untreated (= ISL1 knockout scenario) while another subset received doxycycline treatment to upregulate ISL1 at days 3 and 4 of differentiation (ISL1 rescue). For the second series, a subset of samples was differentiated under default conditions (no RA) while another subset received retinoic acid (RA) on days 3 and 4 of differentiation, which leads to an atrial-like phenotype.
Project description:We report the comparative gene expression between embryonic stem cell derived cranial and spinal motor neurons and multiple time points after induction and primary cultured ocular and spinal motor neurons, using single cell RNA sequencing.
Project description:According to the Canadian Food Inspection Agency and Health Canada, genetically modified crops are considered safe if they are substantially equivalent to a conventional crop in regards to agronomic, physiological and compositional characteristics. A recurring issue in safety assessment of genetically modified crops is the paucity of analytical methods to detect unintended or unexpected outcomes of genetic modification. Traditional targeted compound comparative analyses are limited in scope and capacity to detect unintended changes in chemical composition. This study explored the potential of using microarray technology to assess the substantial equivalence of gene expression profiles between genetically modified and conventional soybean cultivars. Different pre processing methods were applied to the raw expression data from the arrays, and clustering methods were used to try and differentiate the genetically modified cultivars from the conventional cultivars. Results showed that more variation existed between different strains of conventional cultivars than between conventional and genetically modified cultivars. For more information, please see: Cheng, K.C., Beaulieu, J., Iquira, E., Belzile, F.J., Fortin, M.G. and Strömvik, M.V. (2008). Effect of transgenes on global gene expression in soybean is within the natural range of variation of their conventional counterparts. Journal of Agricultural and Food Chemistry. Keywords: Expression comparison between genetically modified cultivars
