+---COMP:V-N(In)---+          +----COMP:N-N(of)---+     
        +MOD_AT+         +SUBJ:V-N+--OBJ:V-N-+           +MOD_ATT+     
        |      |         |        |          |           |       |     
 In U937/PR9 cells , __NODE__ increases expression of __SP__ __NODE__ .
MOD_ATT:N-N (cell,U937/PR9)
COMP:V-N(In) (increase,cell)
SUBJ:V-N (increase,__NODE__)
OBJ:V-N (increase,expression)
COMP:N-N(of) (expression,__NODE__)
MOD_ATT:N-ADJ (__NODE__,__SP__)