9888
These data suggest that IL-2 and IL-7 induce assembly of STAT heterodimers in a similar manner and that subsequent cellular responses may be driven by induction of similar sets of genes .
 IL-7, STAT heterodimers, IL-2, genes
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-7, STAT heterodimers, IL-2, genes