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Pulse exposure of HL60 to radiolabeled hormone for 3 h followed by culture in medium without serum and calcitriol lead to nuclear retention of approximately 1600 radiolabeled VDR by 8 h and approximately 1000 VDR by 24 h.
 protein: VDR; protein: 1600 radiolabeled VDR; protein: VDR; cell line: HL60
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:
 protein: VDR; protein: 1600 radiolabeled VDR; protein: VDR; cell line: HL60