11175
In this report, we demonstrate that the T cell tropic strain of HIV , LAI , does not replicate in naive CD4 T cells stimulated by cross-linking CD3 and CD28 .
 ( cell type: naive CD4 T cells, None) , ( protein: CD28, None) , ( protein: CD3, 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:
 ( cell type: naive CD4 T cells, None) , ( protein: CD28, None) , ( protein: CD3, None) 