Menthol-enhanced cytotoxicity of cigarette smoke demonstrated in two bioassay models

Tobacco Induced Diseases

Tomonori Kawano²  Kazuya Uezu²  Ken Matsuyama¹  Yutaka Tanaike¹  Kazuo Sakurai²  Shinichi Mochizuki²  Tadashi Konishi³  Atsuko Noriyasu² 

[1] Center for Fire Science and Technology, Research Institute of Science Technology, Tokyo University of Science, Noda, Chiba, Japan;Faculty of Environmental Engineering, University of Kitakyushu, Kitakyushu, Japan;Oita National College of Technology, Oita, Japan

关键词: Capsules;    Smoke;    Menthol;    Cigarette;    Cell toxicity;   

Others  :  866998
DOI  :  10.1186/1617-9625-11-18

 received in 2013-06-11, accepted in 2013-07-31,  发布年份 2013

【 摘 要 】

Background

Cigarette smoke is harmful to human health at both cellular and genetic levels. Recently, a unique bioassay for smoke cytotoxicity using air pollution-sensitive plant cells (tobacco) has been proposed.

Methods

Model plant cells (tobacco Bel-W3 cells) and human cells (alveolar epithelial A549 cells) suspended in fresh culture media were exposed to cigarette smoke sampled after lighting the tip of cigarettes (with vs. without menthol capsules) which were attached to a glass pipe connected to the cell-containing plastic tubes. Control cultures were also assessed.

Results

After exposing tobacco plant cells to cigarette smoke, cell death occurred in a dose-dependent manner. Cell death was significantly enhanced by mentholated smoke, while menthol alone was shown to be inert suggesting that menthol synergistically contributes to the enhancement of cell death, initiated by smoke-associated compounds. The enhanced toxicity of mentholated smoke was confirmed in human alveolar epithelial A549 cells.

Conclusions

Cigarette smoke cytotoxicity leading to cell death assessed in plant and human model cells was enhanced by menthol. Further research into these findings is encouraged.

【 授权许可】

   
2013 Noriyasu et al.; licensee BioMed Central Ltd.

【 图 表 】

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