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Bleomycin-injured alveolospheres

ABSTRACT: Bleomycin-injured alveolospheres

PROVIDER: PRJNA824015 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18656301.fastq.gz	Fastqsanger.gz
	SRR18656302.fastq.gz	Fastqsanger.gz
	SRR18656303.fastq.gz	Fastqsanger.gz
	SRR18656304.fastq.gz	Fastqsanger.gz
	SRR18656305.fastq.gz	Fastqsanger.gz

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Transcriptome analysis of murine lung epithelial cells and fibroblasts derived from bleomycin-injured alveolospheres

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Transcriptome analysis of murine lung epithelial cells and fibroblasts derived from bleomycin-injured alveolospheres

Project description:Pulmonary fibrosis is a devatating lung disease with limited effective treatment. Because fibrotic responses are considered to be regulated by complex cellular and molecular circuits, it is difficult to demonstrate a causal relationship of cells, molecules, and cell-cell interactions with diseases in vivo. To overcome this issue, we established bleomycin (BLM)-stimulated alveolosphere model as an ex vivo culture model. To clarify whether our ex vivo model recapitulates the cellular and molecular response to BLM-induced lung injury, we performed RNA-seq (Bulk RNA-seq) analysis of the BLM-stimulated alveolospheres generated by co-culturing murine lung epithelial cells and lung fibroblasts.

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Gene network analysis of interstitial macrophages after treatment with induced pluripotent stem cells secretome (iPSC-cm) in the bleomycin injured rat lung

Project description:Idiopathic pulmonary fibrosis (IPF) is a complex disease involving various cell types. Macrophages are essential in maintenance of physiological homeostasis, wound repair and fibrosis in the lung. Macrophages play a crucial role in repair and remodeling by altering their phenotype and secretory pattern in response to injury. The secretome of induced pluripotent stem cells (iPSC-cm) attenuates injury and fibrosis in bleomycin injured rat lungs. In the current study, we evaluate the effect of iPSC-cm on interstitial macrophage gene expression and phenotype in bleomycin injured rat lungs in vivo. Â iPSC-cm was intratracheally instilled 7 days after bleomycin induced lung injury and assessed 7 days later and single cell isolation was performed. Macrophages were FACS sorted and microarray analysis was performed. We characterized changes in the rat lung interstitial macrophages using transcriptional profiling.

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Single-cell RNA sequencing analysis of murine lung epithelial cells and fibroblasts derived from bleomycin-injured alveolospheres

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Single-cell RNA sequencing analysis of murine lung epithelial cells and fibroblasts derived from bleomycin-injured alveolospheres

Project description:Pulmonary fibrosis is a devatating lung disease with limited effective treatment. Because fibrotic responses are considered to be regulated by complex cellular and molecular circuits, it is difficult to demonstrate a causal relationship of cells, molecules, and cell-cell interactions with diseases in vivo. To overcome this issue, we established bleomycin (BLM)-stimulated alveolosphere model as an ex vivo culture model. To clarify whether our ex vivo model recapitulates the cellular and molecular response to BLM-induced lung injury, we performed single-cell RNA-seq (scRNA-seq) analysis of the BLM-stimulated alveolospheres generated by co-culturing murine lung epithelial cells and lung fibroblasts.

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Single-cell RNA-sequencing of bleomycin-injured young and old mice

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Project description:Bleomycin (BLM) induces lung injury, leading to inflammation and pulmonary fibrosis. Regulatory T cells (Tregs) maintain self-tolerance and control host immune responses. However, little is known about their involvement in the pathology of pulmonary fibrosis. Here we show that a unique Treg subset that expresses trefoil factor family 1(Tff1) emerges in the BLM-injured lung. These Tff1-expressing Tregs (Tff1-Tregs) were induced by IL-33. Moreover, although Tff1 ablation in Tregs had no impact, selective ablation of Tff1-Tregs using an intersectional genetic method promoted pro-inflammatory features of macrophages in the injured lung and exacerbated the fibrosis. Taken together, our study revealed the presence of a unique Treg subset expressing Tff1 in BLM-injured lungs and their critical role in the injured lung to ameliorate fibrosis.

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