14333
Stimulation of highly purified human T-cells via CD2 and CD28 adhesion molecules induces and maintains proliferation for more than 3 weeks.
 ( cell type: highly purified human 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:
 ( cell type: highly purified human T-cells, None) 