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Homo sapiens

ABSTRACT: RNA-seq analysis of immortalized human endometrial stromal cells exposed to cigarette smoke extracts

PROVIDER: PRJDB9858 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	DRR228416_1.fastq.gz	Fastqsanger.gz
	DRR228416_2.fastq.gz	Fastqsanger.gz
	DRR228417_1.fastq.gz	Fastqsanger.gz
	DRR228417_2.fastq.gz	Fastqsanger.gz
	DRR228418_1.fastq.gz	Fastqsanger.gz

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Cigarette smoking effect on pancreatic duct epithelial cells

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Project description:Tobacco is mainly consumed in two different forms (smoking and chewing) that vary in their composition and methods of intake. Despite being the leading cause of oral cancer, the molecular mechanisms resulting in malignancy upon tobacco exposure are yet to be fully elucidated. We therefore sought to compare the molecular alterations in oral keratinocytes exposed to smoke and chewing tobacco. OKF6/TERT1 cells were exposed to cigarette smoke condensate or chewing tobacco for progressively increasing durations (2, 4, 6 and 8 months). We employed a TMT-based quantitative proteomics approach to investigate the adverse effects of chronic cigarette smoke or chewing tobacco exposure in oral keratinocytes. LC/MS3 analysis resulted in the quantification of 5,342 proteins and 2,821 proteins in cigarette smoke and chewing tobacco exposed cells, respectively. Upstream regulator analysis indicates the involvement of distinct regulators in CSC exposed cells compared to STE exposed cells. In addition, exome sequencing revealed discrete genetic alterations in cells exposed to each insult. Current analysis defines a clear distinction in the molecular dysregulation in oral cells in response to different tobacco-based insults. Some of the proteins dysregulated in cigarette smoke or chewing tobacco exposed cells may serve as potential early detection biomarkers which could aid in stratification of patients based on tobacco usage history.

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