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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 .
 cell line: untreated HL-60 leukemic cells; RNA: c-jun transcripts; DNA: c-jun
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell line: untreated HL-60 leukemic cells; RNA: c-jun transcripts; DNA: c-jun