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Hypercapnia impairs fibroblast cell activity and promotes cellular differentiation

ABSTRACT: Hypercapnia has deleterious effects on cell function, including inhibition of alveolar epithelial cells (AEC) and fibroblast proliferation without causing cell death. Classical studies and lineage-trace models demonstrated that fibroblast cells can affect the structurally and functionally distinct alveolar type 1 cells (AT1) and alveolar type 2 cells. This fibroblast cells reprogramming depends on certain signaling pathways that plays critical roles in tissue development and homeostasis throughout the organism lifespan.

ORGANISM(S): Mus musculus

PROVIDER: GSE164733 | GEO | 2021/12/31

REPOSITORIES: GEO

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Hypercapnia alters Wnt production from PDGFR+ lung fibroblasts

Project description:Hypercapnia has deleterious effects on cell function, including inhibition of alveolar epithelial cells (AEC) and fibroblast proliferation without causing cell death. Classical studies and lineage-trace models demonstrated that fibroblast cells can affect the structurally and functionally distinct alveolar type 1 cells (AT1) and alveolar type 2 cells. This fibroblast cells reprogramming depends on certain signaling pathways that plays critical roles in tissue development and homeostasis throughout the organism lifespan.

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Hypercapnia impairs AT2 cell progenitor activity and promotes differentiation to AT1 cells

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Hypercapnia impairs AT2 cell progenitor activity and promotes differentiation to AT1 cells

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Hypercapnia impairs fibroblast cell activity and promotes cellular differentiation

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Myeloid Zfhx3 Deficiency Protects Against Hypercapnia-induced Suppression of Host Defense Against Influenza A Virus

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Myeloid Zfhx3 Deficiency Protects Against Influenza A Virus-induced Lung Injury and Mortality Increased by Hypercapnia

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Buffered hypercapnia alters the transcriptional profile in monocytes.

Project description:In monocytes we used RNA-sequencing to investigate the effect of 4hrs of exposure to buffered hypercapnia (10% CO2) compared to normocapnia (5% CO2) with and without the pro-inflammatory stimulus LPS (2.5ug/ml) for the final 2hrs. Buffered hypercapnia causes transcriptional changes associated with altered metabolic function in both the basal and stimulated states.

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Effect of Carbon Dioxide on Neonatal Mouse Lung: A Genomic Approach

Project description:Rationale: Despite the deleterious effects associated with elevated carbon dioxide (CO2), or hypercapnia, it has been hypothesized that CO2 can protect the lung from injury. However, the effects of chronic hypercapnia on the neonatal lung are unknown. Objectives: To determine whether chronic hypercapnia alters alveolar development and to identify genes that could potentially contribute to hypercapnia-mediated lung protection. Methods: Newborn mouse litters were exposed to 8% CO2, 12% CO2 or room air for 2 weeks. Lungs were excised and analyzed for morphometric alterations. Gene expression changes were assessed by microarray techniques and RT-PCR, and gene products by western blotting. Results: The alveolar walls of CO2-exposed mice appeared thinner than those of controls. In addition, genes from a variety of functional categories were differentially expressed with hypercapnia, including those involved with cell growth/maintenance, signal transduction, protein metabolism, ion transport, stress response and inflammation. In particular and of major interest, gene expression was increased for surfactant proteins (SP) A and D, epithelial Na+ channel, GATA binding protein 6 and fibroblast growth factor receptor 2. In addition, SP-A and SP-D protein expression was increased with hypercapnia. Conclusions: Our results lead us to conclude that: 1) There are potentially a number of gene families which may contribute to hypercapnia-mediated lung protection, and 2) up-regulation of SP-A and SP-D may play a role as anti-inflammatory or antioxidant agents. Based on our genomic results, the effects of CO2 depend on the level to which the lung is exposed. Total 5 arrays including 2 dye-swaps were performed for the 8% CO2 treated animals. Five individual animals were analyzed. Total 4 arrays including 2 dye-swaps were performed for the 12% CO2 treated animals. Four individual animals were analyzed.

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2010-06-25 | E-GEOD-17444 | biostudies-arrayexpress

Single-Cell RNA Sequencing Reveals Human iPS Cell-derived Alveolar Type 1 Cells in Alveolar Organoids

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