"Washington, Sept. 10 (ANI):An immunologist has said that with some prompting, the protein STING can turn down the immune response or even block its attack on healthy body constituents like collagen, insulin and the protective covering of neurons - targets of the debilitating diseases.
Medical College of Georgia researchers saw STING's critical role play out after they injected into the bloodstream submicroscopic DNA nanoparticles, engineered carriers for delivering drugs or genes into cells."
http://www.newstrackindia.com/newsdetails/2013/09/10/206-Autoimmune-diseases-may-soon-become-history.html