Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA132849 | ENA |
REPOSITORIES: ENA
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Project description:There were similarities in the microRNA expression profiles in sheep model and idiopathic pulmonary fibrosis (IPF) suggest that bleomycin induced lung injuries share similar molecular mechanisms associated with the disease IPF
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Project description:We perfomed a microRNA microarray on to assess differentially expressed miRNAs in bleomycin-induced lung fibrosis in mice. To induce pulmonary fibrosis, belomycine (Sigma-Aldrich, St Louis, MO) was dissolved and administred intratracheally at a dose of 1.5U/kg body weight. Control animals received saline only. 21 days post bleomycin treatment, mice were sacrificed and lung tissue were collected for RNA extraction and microRNA microarray.
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Project description:Idiopathic pulmonary fibrosis is a chronic devastating disease of unknown etiology. No therapy is currently available. A growing body of evidence supports the role of TGFβ1 as the major player in the pathogenesis of the disease. This study designed novel human- and mouse-specific siRNAs and siRNA/DNA chimeras targeting both human and mouse common sequences and evaluated their inhibitory activity in pulmonary fibrosis induced by bleomycin and lung-specific transgenic expression of human TGFβ1. Selective novel sequences of siRNA and siRNA/DNA chimeras efficiently inhibited pulmonary fibrosis, indicating their applicability as tools for treating fibrotic disease in humans. Total RNA was extracted from lung tissue from mice with bleomycin (BLM)-induced lung fibrosis treated with mouse TGFβ1 siRNAs or vehicle on different days after BLM infusion.
2011-11-22 | E-GEOD-28122 | biostudies-arrayexpress
Project description:The molecular mechanisms of lung injury and fibrosis are incompletely understood. microRNAs (miRNAs) are crucial biological regulators by suppression of their target genes and are involved in a variety of pathophysiologic processes. To gain insight into miRNAs in the regulation of lung fibrosis, total RNA was isolated from lung samples harvested at different days after bleomycin treatment, and miRNA array was performed thereafter. miRNAs expressed in lungs with bleomycin treatment at different time points were compared to miRNAs expressed in lungs without bleomycin treatment, resulting in 161 miRNAs differentially expressed. Furthermore, miRNA expression patterns regulated in initial and late periods after bleomycin were identified. Target genes were predicted in silico for differentially expressed miRNAs, including miR-7f, miR-7g, miR-196b, miR-16, miR-195, miR-25, miR-144, miR-351, miR-34a, miR-499, miR-704, miR-717, miR-10a, miR-211, miR-34a, miR-367 and miR-21, and then cross-referenced to molecular pathways including apoptosis, Wnt, Toll-like receptor, and TGF-? signaling, which are involved in different pathological phenotypes such as apoptosis, inflammation, and fibrosis. Our study demonstrated relative abundance of miRNA levels in bleomycin-induced lung fibrosis. The miRNAs and their potential target genes identified herein contribute to the understanding of the complex transcriptional program of lung fibrosis. Under anesthesia, 2.5 U/kg bleomycin dissolved in sterile PBS was administered via trachea as previously described. Lung tissues were harvested at the time point of day 0, 3, 7, 14, and 21 post bleomycin challenges. 3 sample in specific time point, except for day 14 where nday14 = 2.
2012-04-12 | E-GEOD-24323 | biostudies-arrayexpress
Project description:Expression analysis of bleomycin induced pulmonary fibrosis mouse model lung tissues
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Project description:To investigate transcriptomic changes of lung ECs following bleomycin induced pulmonary fibrosis and pneumonectomy, lung ECs from CT, Bleomycin induced model, and pneumonectomy model mouse were FACS sorted and single-cell RNA seqs were performed
2023-12-01 | GSE218972 | GEO
Project description:We have employed whole genome microarray expression profiling as a discovery platform to identify genes with the potential to distinguish Mmp19 regulation of fibroblast phenotype changes in mouse lungs. Pulmonary fibrosis was induced by bleomycin at 0.08 u in 50ul of saline. At 21st day the mice were sacrificed and mouse lung fibroblasts were isolated and cultured in FBM plus additives following Lonza's portocol. RNA was extracted with miRNA mini kit from Qiagen. Gene expression microarray was performed with Agilent. A 834-gene consensus signature was identified that distinguished between Mmp19 knockout mice from wildtype. Some gene expression in the same RNA samples were validtaed by real-time PCR. The established bleomycin induced fibrosis was used in this experiment. At day 21 the fibrosis would be the situation of stable fibrosis. We administrated 0.08u of bleomycin intratracheally into wildtype and Mmp19 knockout mice, sacrificed the mice at 21st day and isolated the lung fibroblasts and culturing. Five independent experiments were performed and 3 for gene expression experiment.
2014-08-05 | E-GEOD-49643 | biostudies-arrayexpress
Project description:MicroRNA profiling of bleomycin-induced pulmonary fibrosis in mice
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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).
2024-09-10 | PXD040530 | Pride
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).
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