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The leukemia cell lines K562 and HL - 60 had no detectable TGF - beta RII mRNA .
 leukemia cell lines K562, HL - 60
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 leukemia cell lines K562, HL - 60