Electronic cigarette vapour condensate affects mitochondrial potential in BEAS2B cells
2023
Authors:
Ljujić, MilaTrifunović, Sara
Ilić, Bojan
Milovanović, Jelena
Dinić, Jelena
Divac Rankov, Aleksandra
Contributors
Dobrijević, ZoranaDocument Type:
Conference object (Published version)
,
© 2023 by the Institute of Molecular Genetics and Genetic Engineering, University of Belgrade
Metadata
Show full item recordAbstract:
Introduction: Cigarette smoke exposure is a known risk factor for development of lung diseases and
electronic cigarettes (e-cigarettes) were introduced as a popular and safer alternative to combustible tobacco products. Increasing number of studies are reporting their adverse biological effects both in vivo
and in vitro. Aim of this study was to evaluate the effect of e-cigarettes on mitochondrial function in
lung bronchial epithelial cells.
Methods: Electronic cigarette vapor condensate (ECC) was generated using an e-cigarette device on a
suction trap cooled in a dry ice/ethanol bath. We used unflavoured and flavoured e-cigarette liquids with
and without nicotine. Human bronchial epithelial BEAS2B cells were seeded in 96well plates and treated
with 2% e-cigarette vapour condensate for 24h. Mitochondrial membrane potential was measured using
50nM TMRE (Tetramethyl rhodamine ethyl ester) and cells were visualized on ImageXpress® Pico Automated Cell Imaging System (Molecular Devices, San Jose, CA, USA) with a 10x objective.
Results: We found a significant reduction of TMRE fluorescence in treated cells compared to the control. Imaging of treated cells also revealed changes in cell morphology and the presence of mitochondria in TNT-like structures.
Conclusion: Mitochondrial dysfunction has been associated with various pathological conditions including lung diseases such as asthma, COPD and lung cancer. Due to their relative novelty, the role of
electronic cigarette use in development of chronic lung diseases is still relatively unknown. Our findings
contribute to the growing list of studies pointing to their adverse biological effects and imply their involvement in processes contributing to chronic lung diseases.
Keywords:
electronic cigarettes; mitochondria; lung diseaseFunding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200042 (University of Belgrade, Institute of Molecular Genetics and Genetic Engineering) (RS-MESTD-inst-2020-200042)
In:
- Dobrijević Z, editor. Abstract Book: CoMBoS2 - the Second Congress of Molecular Biologists of Serbia; 2023 Oct 6-8; Belgrade, Serbia. Belgrade: Institute of Molecular Genetics and Genetic Engineering, University of Belgrade ; 2023. p. 139. (Trends in Molecular Biology; Special Issue).