TNFalpha is a rapid activator of IL-8 gene expression by U937 , producing a 50-fold induction of mRNA within 1 hour of treatment .
tnfalpha is a rapid activator of il-8 gene expression by u937 , producing a 50-fold induction of mrna within 1 hour of treatment .
B-protein_molecule O O O O O B-protein_molecule O O O B-cell_line O O O O O O B-RNA_family_or_group O O O O O O