11552
Immune hyperactivation of HIV-1 -infected T cells mediated by Tat and the CD28 pathway .
 ( protein: CD28, None) , ( protein: Tat, None) , ( cell type: HIV-1 -infected T cells, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: CD28, None) , ( protein: Tat, None) , ( cell type: HIV-1 -infected T cells, None) 