RNA-sequencing of mammary epithelial cells from pubertal mice following enrichment of mammary ductal tissue or terminal end buds (TEBs).
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ABSTRACT:
PROVIDER: PRJNA1118226 | ENA |
REPOSITORIES: ENA
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Project description:The terminal end buds (TEB) are the growing part of the ductal mammary epithelium during puberty, which enable the formation of the primary mammary epithelial network. These bulbous end structures are highly proliferative, and this allows the ductal expansion into the mammary fat pad. The TEB comprise of an outer cap cell layer, which include the progenitor cells of the myoepithelium, and the body cells, which are thought to be the progenitors from which the luminal epithelium is formed. Since TEBs make up only a minute part of the whole mammary tissue, associated factors can be easily missed in whole-tissue section analysis. We have therefore optimised a method to enzymatically separate TEB and ducts, respectively, from the surrounding stroma of pubertal mice and performed transcriptome analysis on the isolated structures to identify potential novel regulators of epithelial outgrowth.
2017-02-02 | GSE94371 | GEO
Project description:Transcriptomic profilifing of the mammary epithelial cells in pubertal ducts and TEBs. Cells were enriched from Elf5-GFP and PR-cre/YFP mouse models to obtain basal, luminal GFP/YFP+ and luminal GFP/FYP-.
2024-12-20 | GSE268664 | GEO
Project description:The mammary glands of adult female mice were divided into ductal tissue and terminal end buds (TEBs). Basal and luminal epithelial cells were FACS sorted and RNA extracted for 75bp paired-end RNA-seq profiling using an Illumina NextSeq 500 sequencer.
2021-07-02 | GSE164307 | GEO
Project description:The mammary glands of adult female mice were divided into ductal tissue and terminal end buds (TEBs). Basal and luminal epithelial cells were FACS sorted and nuclei extracted for 75bp paired-end ATAC-seq profiling using an Illumina NextSeq 500 sequencer.
2021-08-22 | GSE165096 | GEO
Project description:The mammary glands of adult female mice were divided into ductal tissue and terminal end buds (TEBs). Basal and luminal epithelial cells were FACS sorted. RNA and nuclei were extracted for RNA-seq and ATAC-seq profiling using an Illumina NextSeq 500 sequencer. This SuperSeries is composed of the SubSeries listed below.
2021-07-03 | GSE165099 | GEO
Project description:The aim was to carry out global analysis of gene expression changes occurring in the normal pubertal mouse mammary gland from the appearance to the regression of terminal end buds. Keywords: developmental time course
2007-05-01 | GSE6453 | GEO
Project description:Analysis of Gene Expression in PTHrP-/- Mammary Buds Supports a Role for BMP Signaling and MMP2 in the Initiation of Ductal Morphogenesis. Parathyroid hormone-related protein (PTHrP) acts on the mammary mesenchyme and is required for proper embryonic mammary development. In order to understand PTHrP’s effects on mesenchymal cells, we profiled gene expression in WT and PTHrP-/- mammary buds, and in WT and K14-PTHrP ventral skin, at E15.5. By cross-referencing the differences in gene expression between these groups, we identified 35 genes potentially regulated by PTHrP in the mammary mesenchyme, including 6 genes known to be involved in BMP signaling. One of these genes was MMP2. We demonstrated that PTHrP and BMP4 regulate MMP2 gene expression and MMP2 activity in mesenchymal cells. Using mammary bud cultures, we demonstrated that MMP2 acts downstream of PTHrP to stimulate ductal outgrowth. Future studies on the functional role of other genes on this list should expand our knowledge of how PTHrP signaling triggers the onset of ductal outgrowth from the embryonic mammary buds.
2009-08-15 | GSE17654 | GEO
Project description:Analysis of Gene Expression in PTHrP-/- Mammary Buds Supports a Role for BMP Signaling and MMP2 in the Initiation of Ductal Morphogenesis. Parathyroid hormone-related protein (PTHrP) acts on the mammary mesenchyme and is required for proper embryonic mammary development. In order to understand PTHrP’s effects on mesenchymal cells, we profiled gene expression in WT and PTHrP-/- mammary buds, and in WT and K14-PTHrP ventral skin, at E15.5. By cross-referencing the differences in gene expression between these groups, we identified 35 genes potentially regulated by PTHrP in the mammary mesenchyme, including 6 genes known to be involved in BMP signaling. One of these genes was MMP2. We demonstrated that PTHrP and BMP4 regulate MMP2 gene expression and MMP2 activity in mesenchymal cells. Using mammary bud cultures, we demonstrated that MMP2 acts downstream of PTHrP to stimulate ductal outgrowth. Future studies on the functional role of other genes on this list should expand our knowledge of how PTHrP signaling triggers the onset of ductal outgrowth from the embryonic mammary buds. Five experimental groups (WT mammary buds, PTHrP-/- mammary buds, WT ventral skin, K14WT ventral skin, K14-PTHrP ventral skin). Three replicates in each group. Differentially expressed genes are listed in the following supplementary files: GSE17654_List1a-Higher_in_KO_Buds_than_WT_Buds.txt GSE17654_List1b-Lower_in_KO_Buds_than_WT_Buds.txt GSE17654_List2a-Higher_in_WT_Skin_than_WT_Buds.txt GSE17654_List2b-Lower_in_WT_Skin_than_WT_Buds.txt
2009-08-15 | E-GEOD-17654 | biostudies-arrayexpress
Project description:The mammary gland is a highly dynamic organ that mainly develops during puberty. Based on morphology and proliferation analysis, mammary stem cells (MaSCs) are thought to be close to or reside in the terminal end buds (TEBs) during pubertal development. However, exclusive stem cell markers are lacking, and therefore the true identity of MaSCs, including their location, multiplicity, dynamics and fate during branching morphogenesis, has yet to be defined. To gain more insights into the molecular identity and heterogeneity of the MaSC pool, we performed single cell transcriptome sequencing of mammary epithelial cells micro-dissected from ducts and TEBs during puberty. These data show that the behaviour of MaSCs cannot be directly linked to a single expression profile. Instead, morphogenesis of the mammary epithelium relies upon a heterogeneous population of MaSCs that functions long-term as a single equipotent pool of stem cells.
2017-02-03 | GSE85875 | GEO
Project description:Epithelial cells possess remarkable plasticity, having the ability to become mesenchymal cells through alterations in adhesion and motility (epithelial-to-mesenchymal transition or EMT). Recent studies suggest that EMT endows differentiated epithelial cells with stem cell traits, posing the interesting question of how epithelial plasticity is properly restricted to ensure epithelial differentiation during tissue morphogenesis. Here we identify zinc-finger transcription factor Ovol2 as a key suppressor of EMT of mammary epithelial cells. Epithelia-specific deletion of Ovol2 completely arrests mammary ductal morphogenesis, and depletes epithelial stem/progenitor cell reservoirs. Further, Ovol2-deficient epithelial cells undergo EMT in vivo to become non-epithelial cell types, and that Ovol2 directly represses key EMT inducers such as Zeb1 and regulates stem/progenitor cell responsiveness to TGF-beta. We also provide evidence for a suppressive role of Ovol2 in breast cancer progression. Our findings underscore the critical importance of exquisitely regulating epithelial plasticity to balance stemness with epithelial differentiation in development and cancer. TEBs from control and conditional Ovol2-knockout mammary glands were physically isolated for RNA extraction and hybridization on Affymetrix microarrays. In order to identify primary changes, we analyzed TEBs from 24-25-day-old mice, when morphological differences between control and Ovol2 SSKO were still minimal.
2014-03-19 | E-GEOD-53923 | biostudies-arrayexpress