10383
CD40 is a functional activation antigen and B7-independent T cell costimulatory molecule on normal human lung fibroblasts .
 ( protein: B7-independent T cell costimulatory molecule, None) , ( protein: CD40, None) , ( protein: activation antigen, None) , ( cell type: human lung fibroblasts, 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: B7-independent T cell costimulatory molecule, None) , ( protein: CD40, None) , ( protein: activation antigen, None) , ( cell type: human lung fibroblasts, None) 