Title : Nicotine prevents the apoptosis induced by menadione in human lung cancer cells.

Pub. Date : 2006 Apr 14

PMID : 16598845






4 Functional Relationships(s)
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1 In the present study, we designed a nicotine-apoptosis system, by pre-treatment of nicotine making lung cancer cell A549 to be in a physiological nicotine environment, and observed that nicotine promoted cell proliferation and prevented the menadione-induced apoptosis, and exerts its role of anti-apoptosis by shift of apoptotic stage induced by menadione from late apoptotic stage to early apoptotic stage, in which NF-kappaB was up-regulated. Nicotine nuclear factor kappa B subunit 1 Homo sapiens
2 Interference analysis of NF-kappaB in A549 cells showed that knock down of NF-kappaB resulted in apoptosis promotion and counteracted the protective effect of nicotine. Nicotine nuclear factor kappa B subunit 1 Homo sapiens
3 Interference analysis of NF-kappaB in A549 cells showed that knock down of NF-kappaB resulted in apoptosis promotion and counteracted the protective effect of nicotine. Nicotine nuclear factor kappa B subunit 1 Homo sapiens
4 The findings suggest that nicotine has potential effect in lung cancer genesis, especially in patients with undetectable early tumor development and development of specific NF-kappaB inhibitors would represent a potentially exciting new pharmacotherapy for tobacco-related lung cancer. Nicotine nuclear factor kappa B subunit 1 Homo sapiens