12941
Human T cell leukemia virus-I ( HTLV-I ) Tax -mediated apoptosis in activated T cells requires an enhanced intracellular prooxidant state .
 Tax, activated T cells
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:
 Tax, activated T cells