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Alveoli septation inhibition and protection

ABSTRACT: It has been shown that dexamethasone (Dex) impairs the normal lung septation that occurs in the early postnatal period. Treatment with retinoic acid (ATRA) abrogates the effects of Dex. To understand the molecular basis for the Dex indiced inhibition of the formation of the alveoli and the ability of ATRA to prevent the inhibition of septation, gene expression was analyzed in 4-day old mice treated with diluent (control), Dex-treated and ATRA+Dex-treated. Keywords: other

ORGANISM(S): Mus musculus

PROVIDER: GSE484 | GEO | 2003/07/16

SECONDARY ACCESSION(S): PRJNA85175

REPOSITORIES: GEO

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Transcription profiling of mouse lung treated with dexamethasone, retanoic acid vs. control to understand the molecular basis for the Dex indiced inhibition of the formation of the alveoli and the ability of ATRA to prevent the inhibition of septation

Project description:It has been shown that dexamethasone (Dex) impairs the normal lung septation that occurs in the early postnatal period. Treatment with retinoic acid (ATRA) abrogates the effects of Dex. To understand the molecular basis for the Dex indiced inhibition of the formation of the alveoli and the ability of ATRA to prevent the inhibition of septation, gene expression was analyzed in 4-day old mice treated with diluent (control), Dex-treated and ATRA+Dex-treated.

2007-12-13 | E-GEOD-484 | biostudies-arrayexpress

Mus musculus

Project description:Alveoli septation inhibition and protection

| PRJNA85175 | ENA

Alveolar septation

Project description:The Mg-delta strain of fibrillin-1 deficient mice display an early defect in alveolar septation. This study attempts to identify expression patterns in the mutant mouse lung compared to their wild-type littermates that suggest pathways that are critical for normal septation. This experiment focuses on postnatal days 1 and 5. Other time points will be added at a later date. Keywords: other

2003-07-16 | GSE479 | GEO

Alveoli loss during caloric restriction time course

Project description:Pulmonary alveoli are complex architectural units thought to undergo endogenous or pharmacologically induced programs of regeneration and degeneration. To study the molecular mechanism of alveoli loss mice were calorie restricted at different timepoints. Lungs were harvested and processed for RNA extraction. Keywords: other

2003-07-16 | GSE478 | GEO

Transcription profiling of pulmonary alveoli from calorie-restricted mice at different timepoints to study the molecular mechanism of alveoli loss.

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Fra-2 negatively regulates postnatal alveolar septation by modulating myofibroblast function

Project description:Purpose: Compare the transciptome between lung myofibroblasts that contituatively express Fra-2 to control lung myofibroblasts to determine genes that may contribute to regulation of secondary alveolar septation Methods: mRNa sequences from lung myofibroblasts isolated from mutant mice that contituatively express Fra-2 in α-SMA expressing cells (sma-Fra2) were compared to control mice. n=4 in each group Results: 43,432 transcripts wre analyzed and 361 genes were differentially expressed in the smaFra2 mice compared to wild type control. Functional analysis was performed using the Database for Annotation, Visualization and Integrated Discovery. Changes in genes from lung myofibroblasts in smaFra2 mice: genes involved with extracellular matrix and cell adhesion were upregulated; Ectonucleotide pyrophosphatase/phosphodiesterase family member 2 (Enpp2) and LPA receptor1 (LPA1) were downregulated. Coclusion: The secondary alveolar septation defect in smaFra2 mice could be explaned by Fra-2 mediated changes in extracellular matrix and cell adhesion in developing lung myofibroblasts.

2018-01-01 | GSE94857 | GEO

Distal airway stem cells yield alveoli in vitro and during lung regeneration following H1N1 influenza infection

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2011-11-01 | E-GEOD-32606 | biostudies-arrayexpress

Transcription profiling of lungs of wild type and Mg-delta strain of fibrillin-1deficient mice to identify pathways that are critical for normal alveolar septation

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Atrial Molecular Asymmetry Precedes the Emergence of Cardiac Septation

Project description:Atrial Molecular Asymmetry Precedes the Emergence of Cardiac Septation

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Distal airway stem cells yield alveoli in vitro and during lung regeneration following H1N1 influenza infection (colony)

Project description:The extent of lung regeneration following catastrophic damage and the potential role of adult stem cells in such a process remains obscure. Sublethal infection of mice with an H1N1 influenza virus related to that of the 1918 pandemic triggers massive airway damage followed by apparent regeneration. We show here that p63-expressing stem cells in the bronchiolar epithelium undergo rapid proliferation after infection and radiate to interbronchiolar regions of alveolar ablation. Once there, these cells assemble into discrete, Krt5+ pods and initiate expression of markers typical of alveoli. Gene expression profiles of these pods suggest that they are intermediates in the reconstitution of the alveolar-capillary network eradicated by viral infection. The dynamics of this p63-expressing stem cell in lung regeneration mirrors our parallel findings that defined pedigrees of human distal airway stem cells assemble alveoli-like structures in vitro and suggests new therapeutic avenues to acute and chronic airway disease. 3 colonies fron control and H1N1 influenza treated lungs (12 dpi) ,each were picked for whole genome microarray analysis

2011-11-01 | E-GEOD-32600 | biostudies-arrayexpress

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