2014
These data demonstrate that VitD3 induces CD14 indirectly through some intermediary factor , and suggest a critical role for Sp1 in this process.
 ( protein: Sp1, None) , ( protein: CD14, None) , ( protein: intermediary factor, 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: Sp1, None) , ( protein: CD14, None) , ( protein: intermediary factor, None) 