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Impact Of Oil Spill To Human Lung Health – Next Generation Sequencing And Mouse Model Based Analysis

ABSTRACT: Impact Of Oil Spill To Human Lung Health – Next Generation Sequencing And Mouse Model Based Analysis

PROVIDER: PRJNA564804 | ENA |

REPOSITORIES: ENA

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Impact Of Oil Spill To Human Lung Health – Next Generation Sequencing And Mouse Model Based Analysis

Project description:This project addresses the question of impact of oil spills on lung health. Specifically the project will address the general hypothesis, which is upon oil/dispersant respiratory exposure there will be a higher carcinogenic potential of lung tissue.

2020-08-26 | GSE137204 | GEO

The impact of oil spill to lung health – insights from an RNA-seq study of human airway epithelial cells

Project description:To reveal the potential effects of oil and oil dispersants on the respiratory system at the molecular level, we evaluated the transcriptomic profile of human airway epithelial cells grown under treatment of crude oil, the dispersants Corexit 9500 and Corexit 9527 and oil-dispersant mixtures. We identified a very strong effect of Corexit 9500 treatment, with 84 genes (response genes) differentially expressed in treatment vs. control samples. We discovered an interactive effect of oil + dispersant mixtures; while no response gene was found for Corexit 9527 treatment alone, cells treated with Corexit 9527 + oil mixture showed an increased number of response genes (46 response genes), suggesting a synergic effect of 9527 with oil on the transcriptomic perturbation of airway epithelial cells. Through GO (gene ontology) functional term and pathway-based analysis, we identified upregulation of genes involved in angiogenesis and immune responses and downregulation of genes involved in cell junctions and steroid synthesis as the prevailing transcriptomic signatures in the cells treated with Corexit 9500, oil or Corexit 9500 + oil mixture. Interestingly, these key molecular features coincide with those observed in common lung diseases, such as asthma, cystic fibrosis and chronic obstructive pulmonary disease. Our study provides mechanistic insights into the detrimental effects of oil and oil dispersants to the respiratory system and suggested significant health impacts of the recent BP oil spill to those people involved in the cleaning operation.

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BP oil spill - field - gill

Project description:In this study we characterize the gill transcriptome changes that coincide with the arrival of contaminating oil in field-collected Gulf killifish Fundulus grandis. Gill transcription was contrasted before and after the arrival of oil, and between oil impacted and reference sites. Animals were sampled from field sites at four times. The oil impacted site is Grand Terre Island Louisiana (GT) and the two reference sites are Bay St. Louis Mississippi (BSL) and Bayou La Batre Alabama (BLB). The first timepoint (05/01/2010 to 05/09/2010) was before the arrival of contaminating oil, the second and third timepoints (06/28/2010 to 06/29/2010, and 08/30/2010 to 09/01/2010) were after the arrival of contaminating oil, and the fourth timepoint 08/28/2011) was over a year after the arrival of contaminating oil.

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