Smoker Extracellular Vesicles Influence on Human Bronchial Epithelial Cells

2018-08-03 15:20:13 | BioPortfolio


Cigarette smoking is a habit that has spread all over the world and is a significant risk factor for many diseases including cardiovascular disease, chronic obstructive pulmonary disease(COPD),asthma and lung cancer.

Evaluation and understanding of tobacco health effects are of major interest worldwide and answer to important societal concerns.

Identification of new biomarkers of exposure to tobacco smoke potentially implicated in COPD or lung carcinogenesis would allow a better observation of tobacco exposed population, thanks to screening establishment at reversible stages of pathological processes.

In this study, we question whether cigarettes smoking alters miRNA profiles of extracellular vesicles (EVs) present in human broncho alveolar lavages (BALs), which could affect surrounding normal bronchial epithelial cells status.


Extracellular vesicles (EVs) include a variety of nanoscale membranous vesicles (exosomes, microvesicles, microparticles). EVs are released into the interstitial fluid from a wide variety of normal or diseased cells.

Analysis of EVs and their content maybe useful as disease biomarkers as they reflect the contents of cells of origin, differ between normal and diseased tissue and can be reliably detected.

EVs may thus act as biomarkers of diverse pathologies like cancer, and detection of these biomarkers maybe applied to early diagnosis or assessment of prognosis in patients with cancer. EVs indeed contain both mRNAs and non-coding RNAs, such as small regulatory microRNAs (miRNAs).

Study Design




Broncho Alveolar Lavages (BAL)




Lille Catholic University

Results (where available)

View Results


Published on BioPortfolio: 2018-08-03T15:20:13-0400

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Medical and Biotech [MESH] Definitions

Small polyhedral outpouchings along the walls of the alveolar sacs, alveolar ducts and terminal bronchioles through the walls of which gas exchange between alveolar air and pulmonary capillary blood takes place.

A THEOPHYLLINE derivative with broncho- and vasodilator properties. It is used in the treatment of asthma, cardiac dyspnea, and bronchitis.

Persons with a history or habit of SMOKING.

The fibrous CONNECTIVE TISSUE surrounding the TOOTH ROOT, separating it from and attaching it to the alveolar bone (ALVEOLAR PROCESS).

Resorption or wasting of the tooth-supporting bone (ALVEOLAR PROCESS) in the MAXILLA or MANDIBLE.

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