1370
Although anti- CD28 MoAb costimulation enhances all of the above signals, NF kappa B and IL-2 levels remain lower than in adults , suggesting the need for further activation requirements in the neonate .
 protein: CD28; protein: anti- CD28 MoAb
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: CD28; protein: anti- CD28 MoAb