tokens: Low levels of c-jun transcripts were detectable in untreated HL-60 leukemic cells , increased significantly by 6 h , and reached near maximal levels by 24 h of exposure to 32 nM TPA .
folded_tokens: low levels of c-jun transcripts were detectable in untreated hl-60 leukemic cells , increased significantly by 6 h , and reached near maximal levels by 24 h of exposure to 32 nm tpa .
labels: O O O B-DNA_domain_or_region O O O O B-cell_line I-cell_line I-cell_line I-cell_line O O O O O O O O O O B-other_name I-other_name O O O O O O B-other_organic_compound I-other_organic_compound B-other_organic_compound O