Cancer, Cancer Treatment

(Ivanhoe Newswire) — Nicotine may play a role in breast tumor development and metastases according to a new study.

Researchers at the Beth Israel Deaconess Medical Center in Boston found through a series of tests that nicotine can potentially increase breast cancer cell growth and migration. Breast epithelial-like MCF10A cells and cancerous MCF7 cells both express several subunits of nicotine receptor known as nAChR. When bound these cells initiate a signaling process that researchers believe may be involved in tumor growth and metastases.
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NEW YORK - Nicotine, whether absorbed by smoking cigarettes or inhaling second-hand smoke, may promote tumor growth and the spread of breast cancer, a study found.

Nicotine made breast cancer cells more likely to multiply and migrate in laboratory tests, according to the study published in yesterday’s issue of the journal Cancer Research. Such evidence also suggests that nicotine given to help people stop smoking should be used cautiously.

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