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Gene expression analysis of bleomycin-challenged mouse lung tissues with/without repetitive hyperbaric oxygen treatment

ABSTRACT: Idiopathic pulmonary fibrosis (IPF) is a dreadful, chronic, and irreversibly progressive disease leading to death with few effective treatments. Our previous study suggested that repetitive hyperbaric oxygen (HBO) treatment alleviates bleomycin-induced pulmonary fibrosis in mice, but the underlying mechanism is not clear. In this study, we compared the RNA-seq data from bleomycin challenged mouse lung tissues with or without repetitive HBO treatment, to figure out the affected biological processes and pathways. Combined with integrative analysis of public data from GEO, our study support HBO treatment as a viable strategy against pulmonary fibrosis.

ORGANISM(S): Mus musculus

PROVIDER: GSE200109 | GEO | 2022/09/29

REPOSITORIES: GEO

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Mouse lung gene expression analysis after repetitive hyperbaric oxygen exposure based on RNA-seq

Project description:Hyperbaric oxygen (HBO) is widely applied to treat a number of hypoxia-related diseases. Previous studies focused on the immediate effect of HBO-exposure induced oxidative stress on lungs, but knowledge regarding the chronic effects from repetitive HBO exposure is limited, especially at the gene expression level. We found that repetitive HBO exposure did not alter the morphology of murine lungs. However, by deconvolution of RNA-seq from those mice lungs using CIBERSORTx and the expression profile matrices of 8 mesenchymal cell subtypes obtained from bleomycin-treated mouse lungs, we identify several mesenchymal cell subtype changes. These include increases in Col13a1 matrix fibroblasts, mesenchymal progenitors and mesothelial cell populations and decreases in lipofibroblasts, endothelial and Pdgfrb high cell populations. Our data suggest that repetitive HBO exposure may affect biological processes in the lungs such as response to wounding, extracellular matrix, vasculature development and immune response.

2020-01-10 | GSE143348 | GEO

Analysis of long noncoding RNAs expression profiles explores mechanisms of hyperbaric oxygen treatment promoting spinal cord injury recovery

Project description:Aims: To better understand the potential mechanisms of hyperbaric oxygen (HBO) treatment alleviating spinal cord injury (SCI). Materials and methods: The SCI model was firstly built in mice, which were randomly divided into three groups: Sham (SH), SCI and HBO groups, followed by hind limb motor function evaluation. Then the spinal cord tissue samples were harvested for genome-wide transcriptional analysis at 1 week after injury. Finally, some highly expressed lnc-rna were selected for functional analysis. Results: the present study uncovered the lncRNAs expression profile of spinal cord following HBO treatment, and identified 577 DE lncRNAs in spinal cord sample among the SH, SCI and HBO groups. The key biological process and pathways were also identified and may be important mechanisms by which HBO treatment alleviating SCI Conclusions: Moreover, this study indicated that lncRNAs NONMMUT 092674.1 and NONMMUT042986.2 may be involved in the process of HBO treatment promoting the recovery of neurological function after SCI.

2022-03-24 | GSE199043 | GEO

Hyperbaric oxygen therapy after mid-cervical spinal contusion injury

Project description:Hyperbaric oxygen (HBO) therapy is frequently used to treat peripheral wounds or decompression sickness. Evidence suggests that HBO therapy can provide neuroprotection and has an anti-inflammatory impact after neurologic injury including spinal cord injury (SCI). Our primary purpose was to conduct an unbiased, genome-wide screening of mRNA expression changes in the injured spinal cord after HBO therapy. A mRNA gene array was used to evaluate samples taken from the contused region of the spinal cord following a lateralized mid-cervical contusion injury in adult female rats. HBO therapy consisted of daily, 1-hour sessions (3.0 ATA, 100% O2) initiated on the day of SCI. Gene set enrichment analyses indicated that HBO upregulated genes in pathways associated with electron transport, mitochondrial function, and oxidative phosphorylation, and downregulation genes in pathways associated with inflammation (including cytokines and NF-B) and apoptotic signaling. In a separate cohort, spinal cord histology was performed to verify whether the HBO treatment impacted neuronal cell counts or inflammatory markers. Compared to untreated rats, there was increased NeuN positive cells in the spinal cord of HBO treated rats (p=0.007). Further, staining for anti-ionized calcium binding adaptor protein (Iba-1, a microglial marker) was reduced after HBO (p=0.028). We conclude that HBO therapy, initiated shortly after SCI and continued for 10-days, can alter the molecular signature of the lesioned spinal cord in a manner consistent with an anti-inflammatory and neuroprotective impact.

2022-05-18 | GSE185600 | GEO

Next Generation Sequencing facilitates quantitative analysis of spinal cord tissue to explore the mechanisms of hyperbaric oxygen treatment alleviating the spinal cord inury

Project description:Aims: To better understand the potential mechanisms of hyperbaric oxygen (HBO) treatment alleviating spinal cord injury (SCI). Materials and methods: The SCI model was firstly built in mice, which were randomly divided into three groups: Sham (SH), SCI and HBO groups, followed by hind limb motor function evaluation. Then the spinal cord tissue samples were harvested for histological evaluation and genome-wide transcriptional analysis at 1 week after injury. Finally, some oxidative stress and cell death related differently expressed genes were selected to be analyzed followed by the functional analysis. Results: HBO treatment significantly improved the recovery of hind limb motor function and decreased the histology score compared to the SCI group. In the genome-wide transcriptional analysis, a total of 76 common differently expressed gene among the three groups were obtained at 1 week after injury, which were enriched in functional pathway such as ferroptosis, calcium signaling pathway, serotonergic synapse, etc. Trends in expression of the six genes were consistent with transcriptional analysis. Conclusions: Identified differentially expressed genes and related signaling pathways may be associated with HBO treatment alleviating second spinal cord injury. These results contribute to elucidate the mechanism of HBO in the treatment of SCI.

2021-10-08 | GSE185301 | GEO

Effect of Hyperbaric Oxygen and Inflammation on Human Gingival Mesenchymal Stem/Progenitor Cells

Project description:The present study explores for the first time the effect of hyperbaric oxygen (HBO) on gingival mesenchymal stem cells’ (G-MSCs) gene expression profile, intracellular pathways activation, pluripotency and differentiation potential under an experimental inflammatory setup. G-MSCs were isolated from five healthy individuals (n=5) and characterized. Single (24h) or double (72h) HBO stimulation (100%O2, 3bar, 90min) was performed under experimental in-flammatory [IL-1β(1ng/ml)/TNF-α(10ng/ml)/IFN-γ(100ng/ml)] and non-inflammatory mi-cro-environment. Next Generation Sequencing and KEGG pathway enrichment analysis, G-MSCs’ pluripotency gene expression, Wnt-/β-catenin pathway activation, proliferation, colo-ny-formation and differentiation were investigated. G-MSCs demonstrated all mesenchymal stem/progenitor cells’ characteristics. The benefi-cial effect of a single HBO stimulation was evident, with anti-inflammatory effects and induction of differentiation (TLL1, ID3, BHLHE40), proliferation/cell survival (BMF, ID3, TXNIP, PDK4, ABL2), migration (ABL2) and osteogenic differentiation (p<0.05). A second HBO stimulation at 72h had a detrimental effect, significantly increasing the inflammation-induced cellular stress and ROS accumulation through HMOX1, BHLHE40 and ARL4C amplification and pathway en-richment (p<0.05). Results outline a positive short-term single HBO anti-inflammatory, regenerative and dif-ferentiation stimulatory effect on G-MSCs. A second (72h) stimulation is yet detrimental on the same properties. The current results could open new perspectives in the clinical application of short-termed HBO induction in G-MSCs-mediated periodontal reparative/regenerative mecha-nisms.

2023-10-05 | GSE244404 | GEO

A tumor-stroma interaction study

Project description:A study on a newly developed tumor model to elucidated molecular changes in the stroma versus the tumor compartment by hyperbaric oxygen (HBO) treatment

2011-06-01 | E-TABM-1103 | biostudies-arrayexpress

Gene expression profiling of experimental-induced pulmonary fibrosis in subcutaneous bleomycin-treated mice vs EXT-treated mice

Project description:Analysis of whole genome gene expression levels in distal lung tissue from mice with systemically bleomycin-induced pulmonary fibrosis. The hypothesis is that bleomycin promotes a specific genotype associated with development of pulmonary fibrosis and that treatment with compound EXT reduces the induction of genes related to the early progression of fibrosis.

2017-09-06 | GSE103511 | GEO

Mouse lung gene expression analysis after repetitive hyperbaric oxygen exposure based on RNA-seq

Project description:Mouse lung gene expression analysis after repetitive hyperbaric oxygen exposure based on RNA-seq

| PRJNA600200 | ENA

DIA proteomics of OGG1 inhibition in murine model of fibrosis

Project description:Interstitial lung diseases such as idiopathic pulmonary fibrosis (IPF) are caused by persistent micro-injuries to alveolar epithelial tissues accompanied by aberrant repair processes. Despite substantial advancement in our understanding of IPF progression, numerous questions remain concerning disease pathology. IPF is currently treated with pirfenidone and nintedanib, compounds which slow the rate of disease progression but fail to target underlying pathophysiological mechanisms. The DNA repair enzyme 8-oxoguanine DNA glycosylase-1 (OGG1) is upregulated following TGF-β1 exposure in several fibrosis-associated cell types. Currently, no pharmaceutical solutions targeting OGG1 have been utilized in the treatment of IPF. In this study, administration of Ogg1-targetting siRNA, mitigated bleomycin-induced pulmonary fibrosis in mice, thereby highlighting OGG1 as a tractable target in lung fibrosis. The novel small molecule OGG1 inhibitor, TH5487, decreased myofibroblast transition and associated pro-fibrotic markers in fibroblast cells. In addition, TH5487 decreased pro-inflammatory cytokine production, inflammatory cell infiltration, and lung remodeling in a murine model of bleomycin-induced pulmonary fibrosis. OGG1 and SMAD7 interact to induce fibroblast proliferation and differentiation, with both increased in fibrotic murine and IPF patient lung tissue. Taken together, these data strongly suggest that TH5487 is a potent, specific, and clinically-relevant treatment for IPF. This DIA-MS dataset entails the raw data and peptide-centric DIA-NN search results of both, lung tissue and bronchoalveolar lavage fluid of n=5 mice profiled across the treatment groups bleomycin combined with TH (BTH), dexamethasone (DEX), TH alone (TH) and vehicle control (V) relative to bleomycin alone (B) as control. Different animals within protein groups were considered biological replicates of the respective treatment condition.

2023-02-06 | PXD029625 | Pride

Bleomycin model of fibrosis and resolution phase in old and young mice

Project description:Bleomycin-induced pulmonary fibrosis in mice mimics major hallmarks of idiopathic pulmonary fibrosis, yet in this model it spontaneously resolves over time. We studied molecular mechanisms of fibrosis resolution and lung repair, focusing on transcriptional and proteomic signatures and the effect of aging. Young (3 months) and old (21 months) mice were treated with Bleomycin or with control saline solution and analyzed transcript and protein expression over 8 weeks (Day 0, 14, 21, 28, 35, 42, 49, 56).

2023-08-09 | PXD041050 | Pride

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