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The effect of interferon alpha on the MNDA mRNA is also observed in the cell lines HL-60 , U937 , and THP-1 .
 MNDA, THP-1, MNDA mRNA, HL-60, cell lines, interferon alpha, U937
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 MNDA, THP-1, MNDA mRNA, HL-60, cell lines, interferon alpha, U937