7143
LPMC exhibited increased IL-2 production in response to CD28 costimulation, compared with cells activated through CD2 alone.
 ( protein: IL-2, None) , ( protein: CD2, None) , ( cell type: LPMC, None) , ( protein: CD28, 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: IL-2, None) , ( protein: CD2, None) , ( cell type: LPMC, None) , ( protein: CD28, None) 