Mel,
The PD-1 and PD-L1 pathways are being targeted to "uncloak" cancer to allow the immune system to seek and fight cancers.
www.sciencedaily.com/releases/2013/06/130603113146.htmwww.nytimes.com/2013/10/15/health/breaking-through-cancers-shield.html?_r=1&Post Edited (robertC) : 10/25/2013 1:43:19 PM (GMT-6)