Charaterization club cell lineages in small airways of naïve WT mice
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE155261 | GEO | 2020/07/29
REPOSITORIES: GEO
Similar Datasets
Project description:Charaterization club cell lineages in small airways of naïve WT mice
| PRJNA649211 | ENA
Project description:Gene expression patterns of bronchiolar progenitors and club cells in mouse lung were examined by microarray experiments. Although it has not yet been fully characterized, a subset of epithelial cells lining bronchioles are best understood as bronchiolar progenitors that self-renew over the long term and that can differentiate into more differentiated club cells and ciliated cells. The bronchiolar progenitors are distinct from club cells and characteristically express the alveolar type 2 cell marker, prosurfactant protein C, with lower levels of club cell secretory protein/Scgb1a1. There are also functional differences between them; while club cells can be depleted by naphthalene because of the abundance of cytochrome P450 enzyme Cyp2f2, bronchiolar progenitors are resistant to naphthalene-induced depletion because of defects in the enzyme.
2016-02-17 | E-MTAB-4460 | biostudies-arrayexpress
Project description:ATGL= the rate-limiting enzyme for intracellular lipolysis. Atgl KO/cTg = Mice lacking Atgl except for cardiac transgenic overexpression of Atgl (Atgl -/- ,Myh6Atgl+/+) to rescue early age death deu to cardiomyopathy. wt/cTg = respective control. The airways of the lung are constantly exposed to inhaled toxic substances, resulting in cellular damage. Within bronchii, club cells make up majority of the cell population in the terminal bronchiolar epithelia. Club cells are known for their ability to metabolize environmental toxins and constantly repairing small impacts in the epithelial layer. Considering the importance of club cells in maintaining bronchiolar epithelial integrity, we porformed gene expression data analysis to decipher the possible dysregulated gene expression thereby corresponding molecular pathways in our mice lacking ATGL.
2021-05-28 | GSE175659 | GEO
Project description:Club (“Clara”) cells, dome shaped cells with disease cytoplasmic granules and microvilli, are the major secretory cell of the human small (>6 generation) airways. Little is known regarding the biology of club cells in the human airway, nor of the ontogeny of this cell type. Taking advantage of the SCGB1A1 as the marker for club cells and our ability to sample the normal small airway epithelium by bronchoscopy and brushing healthy volunteers, we defined the transcriptome of the normal human airway club cell using single cell transcriptome sequencing. Analysis of the human small airway epithelial single cell transcriptome together with in vitro validation provides novel insights into the molecular phenotype and biological functions of the human club cell population and identifies the basal cell as the human progenitor cells for club cells.
2024-06-05 | GSE94819 | GEO
Project description:Lung adenocarcinoma (LUAD) is one of the deadliest malignancies worldwide. Dynamic lineage changes within the lung epithelium and the high plasticity of these epithelial cells confound the correct identification of the cell-of-origin of LUAD. Here, we combined lineage-tracing mouse models with an autochthonous cell type-independent LUAD model in order to discover the cellular origin of ALK-translocated LUAD. We identified Club and AT2 cells as the cells-of-origin of LUAD. Moreover, we uncovered epigenetic imprints in the tumours originating from Club or AT2 cells by whole-genome bisulfite sequencing. Single-cell transcriptomes of Club cells at different stages of tumour development identified two trajectories of Club cell evolution. On both routes, tumours lose their Club cell identity and gain an AT2-like phenotype. Together, this study highlights the role of Club cells in LUAD initiation and unveils key mechanisms conferring LUAD heterogeneity.
2022-06-30 | GSE176184 | GEO
Project description:Lung adenocarcinoma (LUAD) is one of the deadliest malignancies worldwide. Dynamic lineage changes within the lung epithelium and the high plasticity of these epithelial cells confound the correct identification of the cell-of-origin of LUAD. Here, we combined lineage-tracing mouse models with an autochthonous cell type-independent LUAD model in order to discover the cellular origin of ALK-translocated LUAD. We identified Club and AT2 cells as the cells-of-origin of LUAD. Moreover, we uncovered epigenetic imprints in the tumours originating from Club or AT2 cells by whole-genome bisulfite sequencing. Single-cell transcriptomes of Club cells at different stages of tumour development identified two trajectories of Club cell evolution. On both routes, tumours lose their Club cell identity and gain an AT2-like phenotype. Together, this study highlights the role of Club cells in LUAD initiation and unveils key mechanisms conferring LUAD heterogeneity.
2022-06-30 | GSE176185 | GEO
Project description:The club cell, a small airway epithelial (SAE) secretory cell that uniquely expresses SCGB1A1, plays a central role in host defense in the human lung. Based on data demonstrating that ~50% of club cells express MUC5B, a secretory mucin critical for mucociliary clearance, we hypothesized that subpopulations of club cells with distinct functions may exist. To evaluate this, the SAE of normal nonsmokers and healthy cigarette smokers was sampled by bronchoscopy and brushing followed by single cell sequencing using Drop-seq technology. Subpopulations of SCGCB1A1+KRT5loMUC5AC- club cells were assessed by unsupervised clustering to evaluate club cell subpopulations. Immunostaining of SAE in lung sections, brushed SAE cells, and in vitro air-liquid interface culture was utilized to confirm the transcriptomic-based observations. Unsupervised clustering of SCGCB1A1+KRT5loMUC5AC‾ club cells in the SAE identified 3 unique club cell populations that differed by differentiation state and function, including: (1) progenitor; (2) proliferating; and (3) effector subpopulations. The progenitor club cell population was energetically active with high expression of mitochondrial and ribosomal proteins and the highest KRT5 levels vs other club cell populations. The proliferating population, defined by high expression of cyclins and proliferation markers, was the smallest, representing 2% of club cells. The effector club cell cluster expressed transcripts for host defense genes, xenobiotic metabo-lism, and barrier functions commonly associated with club cell function. Comparison of the club cell subpopulations in smokers vs nonsmokers demonstrated that the proportion of the club cell effector population was significantly decreased in smokers with a concomitant significant in-crease in the proliferating cell population. These observations provide novel insights into both the makeup of human SAE club cell subpopulations and smoking-induced changes in club cell biology.
2021-09-22 | GSE155515 | GEO
Project description:We report that airway epithelial club cells affected the immune landscaping in HKP1 lungs
2021-06-08 | GSE157882 | GEO
Project description:Background and objective: The role of bronchiolar epithelial cells in the pathogenesis of pulmonary fibrosis has not been addressed. We previously demonstrated that DNA damage was found in bronchiole at early phase, and subsequently extended to alveolar cells at later phase in bleomycin-induced pulmonary fibrosis in mice. Club cells are progenitor cells for bronchiole, and are recognized to play protective roles against lung inflammation and damage. The aim of the study was to elucidate the role of club cells in the development of pulmonary fibrosis. Methods: C57BL/6J mice were received naphthalene intraperitoneally at day -2 to deplete club cells, and were given intratracheal bleomycin or vehicle at day 0. Lung tissues were obtained at day 1, 7, and 14, and bronchoalveolar lavage was performed at day 14. Gene expression was analysed from bronchiolar ephithelial cells sampled by laser captured microdissection at day 14. Results: Surprisingly, naphthalene-induced club cell depletion protected mice from bleomycin-induced lung injury and fibrosis. We conclude that club cells are involved in the development of lung injury and fibrosis.
2017-02-08 | GSE94522 | GEO
Project description:We report that airway epithelial club cells harbor the genes specifically up-regulated by 4Gy-RT
2021-06-08 | GSE157881 | GEO