5474
We also demonstrate that gp120 -mediated ICAM-1 expression has functional significance, as it enhances the ability of monocytic cells to bind to gp120 -stimulated human astrocytes in an ICAM-1 /beta 2 integrin -dependent fashion .
 ( cell type: gp120 -stimulated human astrocytes, None) , ( cell type: astrocytes, None) , ( protein: ICAM-1, None) , ( protein: gp120, None) , ( protein: integrin, None) , ( cell type: monocytic cells, None) , ( protein: gp120, None) , ( protein: ICAM-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:
 ( cell type: gp120 -stimulated human astrocytes, None) , ( cell type: astrocytes, None) , ( protein: ICAM-1, None) , ( protein: gp120, None) , ( protein: integrin, None) , ( cell type: monocytic cells, None) , ( protein: gp120, None) , ( protein: ICAM-1, None) 