In vitro effects of nicotine on the non-small-cell lung cancer line A549.

Autor:	Gao T; Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China., Zhou XL; Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China., Liu S; Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China., Rao CX; Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China., Shi W; Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China., Liu JC; Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, China.
Jazyk:	angličtina
Zdroj:	JPMA. The Journal of the Pakistan Medical Association [J Pak Med Assoc] 2016 Apr; Vol. 66 (4), pp. 368-72.
Abstrakt:	Objective: To investigate in vitro effects of nicotine on the non-small-cell lung cancer line A549. Methods: The case-control study was conducted at the First Affiliated Hospital of Nanchang University from 1st January to 30th June, 2014 and comprised A549 cells which were treated with a series of concentrations of nicotine (0.01 µM, 0.1 µM, 1 µM and 10 µM) for 24 hours. Control cells were incubated under the same conditions without the addition of nicotine. Cell growth was detected by monotetrazolium salt [3-(4, 5-dimethyl-2-thiazolyl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium] assay. Cell apoptosis was detected by Haematoxylin and Eosin staining, immunofluorescence analysis of Filamentous actin and electron microscope observation. Results: Nicotine had no significant effect on A549 cell growth at the dose of 0.01µM (p>0.05), but had significant growth inhibitory effects at the doses of 0.1µM, 1µM and 10µM (p< 0.05 each). A significant decrease in cell numbers was observed on staining (p< 0.05). Significant changes in the size and shape of cells and concomitant changes in cytoskeletons and organelles were observed by immunofluorescence and electron microscope observation (p< 0.05). Conclusions: The growth inhibitory effects of nicotine on A549 cells were found to be dose-dependent.
Databáze:	MEDLINE
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