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Human T-cell leukemia virus type 1 tax protein abrogates interleukin-2 dependence in a mouse T-cell line .
 Human T-cell leukemia virus type 1 tax protein, mouse T-cell line, interleukin-2
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:
 Human T-cell leukemia virus type 1 tax protein, mouse T-cell line, interleukin-2