“A team of University of South Carolina researchers led by Mitzi Nagarkatti, Prakash Nagarkatti and Xiaoming Yang have discovered a novel pathway through which marijuana’s main active constituent, THC, can suppress the body’s immune functions…

Marijuana is now regularly and successfully used to alleviate the nausea and vomiting many cancer patients experience as side effects to chemotherapy, combat the wasting syndrome that causes some AIDS patients to lose significant amounts of weight and muscle mass and ease chronic pain that is unresponsive to opioids, among other applications.

The university study has uncovered yet another potential application for marijuana, in the suppression of immune response to treat autoimmune diseases.”

http://www.sciencedaily.com/releases/2014/06/140602150914.htm