+-------COMP:N-N(of)-------+   
         +---------COMP:V-N(In)--------+          |           +-MOD_ATT:N-ADJ+   
         |            +MOD_ATT+SUBJ:V-N+--OBJ:V-N-+           |       +MOD_AT+   
         |            |       |        |          |           |       |      |   
 In macrophages , __NODE__ protein decreases expression of __SP__ __NODE__ mRNA .
MOD_ATT:N-ADJ (protein,__NODE__)
COMP:V-N(In) (decrease,macrophage)
SUBJ:V-N (decrease,protein)
OBJ:V-N (decrease,expression)
COMP:N-N(of) (expression,mRNA)
MOD_ATT:N-ADJ (mRNA,__SP__)
MOD_ATT:N-ADJ (mRNA,__NODE__)