A muco-inflammatory milieu characterizes early cf lung disease
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB22216 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR2098720_1.fastq.gz | Fastqsanger.gz | |||
| ERR2098720_2.fastq.gz | Fastqsanger.gz | |||
| ERR2098730_1.fastq.gz | Fastqsanger.gz | |||
| ERR2098730_2.fastq.gz | Fastqsanger.gz | |||
| ERR2098740_1.fastq.gz | Fastqsanger.gz |
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Project description:Lung diseases, such as cystic fibrosis and COPD, are characterized by mucus obstruction and chronic airway inflammation, but their mechanistic link remains poorly understood. Here, we focused on the role of the mucostatic airway microenvironment on epigenetic reprogramming of airway macrophages (AM) and resulting transcriptomic and phenotypical changes. Using a muco-obstructive mouse model (Scnn1b-transgenic), we identified epigenetically controlled, differentially regulated pathways and transcription factors involved in inflammatory responses and macrophage polarization. Ex vivo stimulation of wild-type AMs with mucus induced gene expression changes, comparable with those observed in AMs from Scnn1b-transgenic mice. Functionally, AMs from Scnn1b-transgenic mice displayed impaired efferocytosis, phagocytosis and excessive inflammatory responses upon lipopolysaccharide challenge, mediated through enhanced Irf1 activity and expression. Our data show that mucostasis induces epigenetic reprogramming of AMs, leading to changes favoring tissue damage and disease progression. Targeting of these altered AMs may support therapeutic approaches in patients with muco-obstructive lung diseases.
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Project description:Lung diseases, such as cystic fibrosis and COPD, are characterized by mucus obstruction and chronic airway inflammation, but their mechanistic link remains poorly understood. Here, we focused on the role of the mucostatic airway microenvironment on epigenetic reprogramming of airway macrophages (AM) and resulting transcriptomic and phenotypical changes. Using a muco-obstructive mouse model (Scnn1b-transgenic), we identified epigenetically controlled, differentially regulated pathways and transcription factors involved in inflammatory responses and macrophage polarization. Ex vivo stimulation of wild-type AMs with mucus induced gene expression changes, comparable with those observed in AMs from Scnn1b-transgenic mice. Functionally, AMs from Scnn1b-transgenic mice displayed impaired efferocytosis, phagocytosis and excessive inflammatory responses upon lipopolysaccharide challenge, mediated through enhanced Irf1 activity and expression. Our data show that mucostasis induces epigenetic reprogramming of AMs, leading to changes favoring tissue damage and disease progression. Targeting of these altered AMs may support therapeutic approaches in patients with muco-obstructive lung diseases.
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Project description:Lung diseases, such as cystic fibrosis and COPD, are characterized by mucus obstruction and chronic airway inflammation, but their mechanistic link remains poorly understood. Here, we focused on the role of the mucostatic airway microenvironment on epigenetic reprogramming of airway macrophages (AM) and resulting transcriptomic and phenotypical changes. Using a muco-obstructive mouse model (Scnn1b-transgenic), we identified epigenetically controlled, differentially regulated pathways and transcription factors involved in inflammatory responses and macrophage polarization. Ex vivo stimulation of wild-type AMs with mucus induced gene expression changes, comparable with those observed in AMs from Scnn1b-transgenic mice. Functionally, AMs from Scnn1b-transgenic mice displayed impaired efferocytosis, phagocytosis and excessive inflammatory responses upon lipopolysaccharide challenge, mediated through enhanced Irf1 activity and expression. Our data show that mucostasis induces epigenetic reprogramming of AMs, leading to changes favoring tissue damage and disease progression. Targeting of these altered AMs may support therapeutic approaches in patients with muco-obstructive lung diseases.
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