11909
RANTES ( regulated upon activation, normal T cell expressed and secreted ) is a cytokine that belongs to the beta-chemokine family ; it is chemoattractant for CD4+/CD45RO T cells , it is produced by various cell types including CD8+ and CD4+ T cells as well as monocytes/macrophages , and has recently been shown to suppress replication of macrophage-tropic strains of HIV in CD4+ T cells .
 ( protein: RANTES, None) , ( protein: regulated upon activation, normal T cell expressed and secreted, None) , ( cell type: CD4+ T cells, None) , ( protein: beta-chemokine family, None) , ( cell type: monocytes/macrophages, None) , ( cell type: CD4+/CD45RO T cells, None) , ( protein: cytokine, 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: RANTES, None) , ( protein: regulated upon activation, normal T cell expressed and secreted, None) , ( cell type: CD4+ T cells, None) , ( protein: beta-chemokine family, None) , ( cell type: monocytes/macrophages, None) , ( cell type: CD4+/CD45RO T cells, None) , ( protein: cytokine, None) 