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The enhanced activity disappeared after 2 h in PBL , whereas it was still enhanced by 4 h in HL60 .
 cell line: HL60; cell type: PBL
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: HL60; cell type: PBL