Project description:The three-dimensional architecture of the genome affects genomic functions. Multiple genome architectures at different length scales, including chromatin loops, domains, compartments, and regions associated with nuclear lamina and nucleoli, have been discovered. However, how these structures are arranged in the same cell and how they are correlated with each other in different cell types in mammalian tissue are largely unknown. Here, we developed Multiplexed Imaging of Nucleome Architectures that measures multiscale chromatin folding, copy numbers of numerous RNA species, and associations of numerous genomic regions with nuclear lamina, nucleoli and surface of chromosomes in the same, single cells. We applied this method in mouse fetal liver, and identified de novo cell-type-specific chromatin architectures associated with gene expression, as well as chromatin organization principles independent of cell type. Polymer simulation showed that both intra-chromosomal self-associating interactions and extra-chromosomal interactions are necessary to establish the observed organization. Our experiments and modeling provide a multiscale and multi-faceted picture of chromatin folding and nucleome architectures in mammalian tissue and illustrate physical principles for maintaining chromatin organization. Here we submit our bulk RNA-sequencing data on E14.5 mouse fetal liver, used in the study to validate image-based RNA profiling results.
Project description:LTi cells are part of the ILC family and essential for the formation of secondary lymph nodes within the embryo. This data set contains the analysis of lymphoid tissue (LTi) cell ontogeny, studied by expression profile analysis with RNA single cell sequencing of the fetal liver vs. embryonic periphery at embryonic stages E13.5 an E14.5. They indicate a proliferating precursor population mainly in the fetal liver, while the embryonic periphery harbors the definitive lineage.
Project description:Analyses of gene expression by RNA-Seq in mouse E14.5 fetal liver burst-forming unit erythroid (BFU-E) cells untreated or treated by dexamethasone (DEX) with or without PPAR? agonist GW7647. RNA-Seq was performed on enriched populations of mouse BFU-E isolated from E14.5 fetal liver, as well as BFU-E enriched cells treated with Dex ± GW7647.
Project description:This study analyzes gene expression in beta-thalassemic fetal liver erythroblasts in the Th3 murine model. FACS-purified wild-type, heterozygous, and homozygous stage-matched erythroblasts from E14.5 fetal livers are compared. We used FACS to purify CD71+Ter119+FSChigh matched populations from E14.5 fetal livers of wild-type, Th3/+, and Th3/Th3 embryos
Project description:This study analyzes gene expression in beta-thalassemic fetal liver erythroblasts in the Th3 murine model. FACS-purified wild-type, heterozygous, and homozygous stage-matched erythroblasts from E14.5 fetal livers are compared.
Project description:LTi cells are part of the ILC family and essential for the formation of secondary lymph nodes within the embryo. This data set contains the analysis of lymphoid tissue (LTi) cell ontogeny, studied by expression profile analysis with RNA bulk sequencing and single cell sequencing of the fetal liver vs. embryonic periphery at embryonic stages E13.5 an E14.5. They indicate a proliferating precursor population mainly in the fetal liver, while the embryonic periphery harbors the definitive lineage. This SuperSeries is composed of the SubSeries listed below.
Project description:The aim of this experiment was to investigate the role of KLF3 in regulating gene expression at different stages throughout the erythroid maturation process. Affymetrix microarrays were performed on fetal liver cells (both TER119- progenitor cells and TER119+ erythroblast cells) from E14.5 wildtype and Klf3 KO mice. Four wildtype TER119- replicates, four Klf3 KO TER119- replicates, four wildtype TER119+ replicates, three Klf3 KO TER119+ replicates. All are from E14.5 fetal liver.
