8589
The inhibition of IL-2 production was observed in the CD3 (+) T-lymphocyte cytoplasm as early as 4 h after activation by PMA+ ionomycin .
 CD3, IL-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:
 CD3, IL-2