How does marijuana cause lung cancer?

Answer 1

Last year, five scientific journals published prominent articles trumpeting cannabinoids (compounds in marijuana) as potential anti-cancer agents.

http://www.lewrockwell.com/orig5/armentano-p1.html

In lab and mouse studies, the compound, known as THC, cut lung tumor growth in half and helped prevent the cancer from spreading, says Anju Preet, PhD, a Harvard University researcher in Boston who tested the chemical.

Moreover, other early research suggests the cannabis compound could help fight brain, prostate, and skin cancers as well, Preet says.

The findings were presented at the annual meeting of the American Association for Cancer Research.

The finding builds on the recent discovery of the body's own cannabinoid system, Preet says. Known as endocannabinoids, the natural cannabinoids stimulate appetite and control pain and inflammation.

THC seeks out, attaches to, and activates two specific endocannabinoids that are present in high amounts on lung cancer cells, Preet says. This revs up their natural anti-inflammatory properties. Inflammation can promote the growth and spread of cancer.

In the new study, the researchers first demonstrated that THC inhibited the growth and spread of cells from two different lung cancer cell lines and from patient lung tumors. Then, they injected THC into mice that had been implanted with human lung cancer cells. After three weeks, tumors shrank by about 50 percent, compared with tumors in untreated mice.

http://www.cbsnews.com/stories/2007/04/17/health/webmd/main2696726.shtml

Answer 2

Coz it does fool

Answer 3

No. If that were the case, then medical marijuana would not treat lung cancer which it does.