passages.id: split_1_test_3111_passage
passages.type: progene_text
passages.text: These results demonstrate that CNS cells may be a source of IL-1F8 , but the failure of LPS to modulate IL-1F8 mRNA expression , and of recombinant IL-1F8 to induce any of the classical IL-1 responses , suggest that this cytokine has restricted activities in the brain , or that it may act via alternative pathway(s) .