14816
These results show that protein phosphatase 1 and 2A inhibitors exert multiple effects on cytokine production in human monocytes and suggest that these two phosphatases play important roles in regulating interleukin-1 production .
 ( protein: phosphatases, None) , ( cell type: human monocytes, None) , ( protein: interleukin-1, 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: phosphatases, None) , ( cell type: human monocytes, None) , ( protein: interleukin-1, None) 