10772
The mitogenic combination of anti CD2 + anti CD28 released the footprint as cells were committed to proliferation.
 CD2, CD28, anti CD28, anti CD2
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:
 CD2, CD28, anti CD28, anti CD2