Cow’s milk neutralizes the cytotoxicity of acrolein, a putative carcinogen in cigarette smoke

The Journal of Veterinary Medical Science

Yoshio KIKU¹  Ryushin MIZUTA² 

[1] Dairy Hygiene Research Division, National Institute of Animal Health, National Agriculture and Food Research Organization, 4 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-0045, Japan;Research Institute for Biological Sciences, Tokyo University of Science, 2669 Yamazaki, Noda, Chiba 278-0022, Japan

关键词: acrolein;    cow’s milk;    cytotoxicity;   

DOI  :  10.1292/jvms.17-0603

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

Cigarette smoke is a strong and independent risk factor for esophageal cancer, while the consumption of cow’s milk has been proposed as a protective factor. The mechanistic role of milk in preventing cancer, however, has not been clarified. We focused our study on acrolein, an abundant unsaturated aldehyde present in cigarette smoke. Acrolein is a highly toxic compound and a putative carcinogen. Using a cell culture system, we found that (1) acrolein caused necrosis in Ramos Burkitt’s lymphoma cells, (2) the necrosis was inhibited by preincubation of acrolein with milk, and (3) acrolein formed adducts with milk proteins. These results indicated the protective effects of cow’s milk against acrolein-induced cytotoxicity via protein-acrolein adduct formation.

【 授权许可】

Unknown