11693
In this study, we investigated the importance of PI 3-kinase in TCR -directed T-cell activation using activated or inhibitory versions of PI 3-kinase .
 TCR, PI 3-kinase, PI 3-kinase
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:
 TCR, PI 3-kinase, PI 3-kinase