18054
The protein chimera exerts higher stimulatory activity to drive expansion of purified CFSE - labeled OT - I CD8 ( + ) T cells activated by an injection of a low dose of SIINFEKL peptide than IL - 2 / S4B6 mAb immunocomplexes in vivo .
 Chemical: CFSE
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: CFSE