3228
p52 and RelB were detected in the nuclei in both CD1a+ and CD68+ cells from the T cell area , whereas p50 was found only in CD68- and CD1a- cells .
 ( protein: p50, None) , ( protein: RelB, None) , ( protein: p52, None) , ( cell line: CD68+ cells, None) , ( cell line: CD1a+, 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: p50, None) , ( protein: RelB, None) , ( protein: p52, None) , ( cell line: CD68+ cells, None) , ( cell line: CD1a+, None) 