mTOR activity in human Hodgkin-lymphoma biopsies. a. High (A) and low (B) mTOR activity in lymphoma cells of Hodgkin-lymphoma biopsies. Low mTOR activity is comparable to that of reactive lymph nodes (C). (pS6 IHC; representative examples are shown.) b. Kaplan-Meier survival curves stratified by mTOR activity: low mTOR and high mTOR groups include 6 and 77 cases respectively (p=0.42).