5816
In this study, we demonstrate that constitutive expression of bcl-xl but not bcl-2 , bcl-xs , bak , bad , or bax was associated with apoptosis resistance after IL-2 deprivation in CTLL-2 cells that expressed Tax .
 IL-2, bcl-xl, Tax, bax, bcl-2, CTLL-2 cells, bad, bcl-xs, bak
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:
 IL-2, bcl-xl, Tax, bax, bcl-2, CTLL-2 cells, bad, bcl-xs, bak