A 2007 study, performed at Harvard University (yes, that Harvard) by Anju Preet, PhD and the Division of Experimental Medicine, is further evidence that supports the study performed by Donald Tashkin, M.D. (reported in Toke January 27) originally published in 2005, indicating that THC appears not to start or promote lung cancer, and if anything, appears to slow or stop lung cancer.

In other words, THC, marijuana’s main active ingredient, appears to have anti-tumor effects!

 

Dr. Preet’s conclusion is that the THC is the main player in stopping cancer. Tetrahyrocannabinol appears to stop epidermal growth factor (EGF) released by lung tumors. EGF is used for angiogenesis (it’s a growth factor released by a tumor to encourage new blood vessel growth to feed it; this also allows the growth of the tumor and allows it to spread).

When mice (whose biological functions are identical to humans’ in many ways) were implanted surgically with human lung cancer cells which were allowed to start growing and then treated with THC for three weeks, the cancer tumors shrunk by 50 percent in weight, and there was a 60 percent reduction in the number of tumors in their lungs.