Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA317447 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:The histone demethylase KDM6A controls the mammary luminal lineage through enzyme-independent mechanisms
| PRJNA310874 | ENA
Project description:Mammary ducts and alveoli are composed of basal and luminal cells, with the fate and differentiation of secreting cells being controlled by hormones through specific transcription factors. This study establishes the essential role of the histone H3 lysine 27 trimethylation (H3K27me3) demethylase KDM6A (UTX) in a balanced basal and luminal cell compartment. Disproportionate formation of basal cells in the absence of KDM6A resulted in disorganized mammary ducts and alveoli and lactation failure. Mutant luminal progenitors lost their distinctive transcription factor expression pattern and acquired basal characteristics leading to a preferential expansion of this lineage. The structure of mammospheres obtained from mutant progenitors suggested they were derived from basal progenitors. The genomic H3K27me3 landscape was unaltered in the absence of KDM6A suggesting demethylase-independent mechanisms. In support of this, mammary tissue developed normally in mice expressing a catalytically inactive KDM6A. This study demonstrated that mammary luminal progenitor cells rely on UTX to stably maintain their identity and thereby establish a balance of basal and luminal cells required for a functional mammary gland.
2016-06-06 | GSE77586 | GEO
Project description:KDM6A (UTX) controls the balance of basal and luminal mammary epithelium through regulating lineage-specific genes independent of its demethylase activity
| PRJNA306480 | ENA
Project description:We demonstrate that the histone demethylase KDM6A promotes infection of diverse coronaviruses, including SARS-CoV-1, SARS-CoV-2, MERS-CoV and mouse hepatitis virus (MHV) in a demethylase activity-independent manner
2023-04-10 | GSE228268 | GEO
Project description:Rank signaling regulates mammary gland development and epithelial cell differentiation. Rank receptor is expressed by mammary basal and luminal populations, but, unlike luminal Rank, the contribution of basal Rank signaling to MG homeostasis remains poorly studied. We have combined timely regulated basal specific Rank expression with lineage tracing models and unveiled that basal Rank signaling controls basal cell identity in postnatal mammary glands. Ectopic basal Rank disrupts basal but also luminal cell identity, resulting in aberrant luminal-like differentiation of basal cells and impaired lactogenesis. Mechanistically, overactivation of basal Rank signaling leads to basal cell lineage infidelity, illustrated by the appearance of premalignant lesions composed by a basal-derived hybrid population with alveolar features which ultimately generates basal and luminal breast adenocarcinomas. Proteomic, transcriptomic and chromatin analyses support that the loss of tumor suppressive epigenetic regulators driven by basal Rank contributes to epithelial cell dedifferentiation and tumorigenesis. The basal Rank signature generated associates to poor prognosis particularly in human adenocarcinomas of the luminal subtype stressing the clinical relevance of our findings. Interestingly, our results reinforce the idea that luminal breast tumors might originate from basal cells that have suffered a luminal-like aberrant dedifferentiation triggered by Rank signaling.
2026-02-02 | PXD054102 | Pride
Project description:Rank signaling regulates mammary gland development and epithelial cell differentiation. Rank receptor is expressed by mammary basal and luminal populations, but unlike that of luminal, the contribution of basal Rank signaling to mammary gland homeostasis remains poorly studied. Combining timely-regulated, basal-specific Rank expression with lineage tracing strategies we unveiled that Rank signaling controls basal cell identity in postnatal mammary glands. Enhanced basal Rank disrupts basal and luminal cell identity, resulting in aberrant luminal-like differentiation of basal cells, defective lactation and the appearance of premalignant lesions composed of a basal-derived hybrid population with luminal/alveolar features, which ultimately generates basal and luminal breast adenocarcinomas. Mechanistically, phospho-proteomic, transcriptomic and chromatin analyses support that basal Rank activation triggers the loss of tumor suppressive epigenetic regulators, leading to chromatin remodeling, disruption of basal identity and tumorigenesis. We uncover a basal Rank gene signature that can be predictive of progression from in situ to invasive adenocarcinomas and associates with poor prognosis in breast cancer patients, particularly in those diagnosed with luminal adenocarcinomas, underlining the clinical relevance of our findings. Our results reinforce the idea that basal lineage infidelity triggered by Rank signaling contribute to generation from pre-invasive lesions and transition to invasive breast cancer.
2026-02-02 | PXD058134 | Pride
Project description:Here we describe the application of high-throughput sequencing technology for profiling histone and DNA methylation, and gene expression patterns of normal human mammary progenitor-enriched and luminal lineage-committed cells. We observed significant differences in histone H3 lysine 27 tri-methylation (H3K27me3) enrichment and DNA methylation of genes expressed in a cell type-specific manner, suggesting their regulation by epigenetic mechanisms and a dynamic interplay between the two processes that together define developmental potential. The technologies we developed and the epigenetically regulated genes we identified will accelerate the characterization of primary cell epigenomes and the dissection of human mammary epithelial lineage-commitment and luminal differentiation. Global profiling of differentially methylated regions in 2 cell types from 6 individuals.
2011-03-01 | E-GEOD-26139 | biostudies-arrayexpress
Project description:Here we describe the application of high-throughput sequencing technology for profiling histone and DNA methylation, and gene expression patterns of normal human mammary progenitor-enriched and luminal lineage-committed cells. We observed significant differences in histone H3 lysine 27 tri-methylation (H3K27me3) enrichment and DNA methylation of genes expressed in a cell type-specific manner, suggesting their regulation by epigenetic mechanisms and a dynamic interplay between the two processes that together define developmental potential. The technologies we developed and the epigenetically regulated genes we identified will accelerate the characterization of primary cell epigenomes and the dissection of human mammary epithelial lineage-commitment and luminal differentiation. Global transcriptome profilings of 15 samples in normal breast tissue using Sage-Seq.
2011-03-01 | E-GEOD-26140 | biostudies-arrayexpress
Project description:The UTX/KDM6A gene encodes the UTX histone H3K27 demethylase, which plays an important role in mammalian development and is frequently mutated in cancers and particularly, in urothelial cancers. Using BioID technique, we explored the interactome of different UTX isoforms.
2024-01-28 | PXD041254 | Pride
Project description:Here we describe the application of high-throughput sequencing technology for profiling histone and DNA methylation, and gene expression patterns of normal human mammary progenitor-enriched and luminal lineage-committed cells. We observed significant differences in histone H3 lysine 27 tri-methylation (H3K27me3) enrichment and DNA methylation of genes expressed in a cell type-specific manner, suggesting their regulation by epigenetic mechanisms and a dynamic interplay between the two processes that together define developmental potential. The technologies we developed and the epigenetically regulated genes we identified will accelerate the characterization of primary cell epigenomes and the dissection of human mammary epithelial lineage-commitment and luminal differentiation. Examination of histone H3K27me3 modifications in 2 cell types from 3 individuals and H3K4me3 modifications in 2 cell types from one individual sample.
2011-03-01 | E-GEOD-26137 | biostudies-arrayexpress