7443
In summary, our results provide compelling evidence that NF-kappaB protects against Fas -mediated death and is likely to be an important regulator of T cell homeostasis and tolerance .
 protein: Fas; protein: NF-kappaB
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: Fas, NF-kappaB 
Answer:
 protein: Fas; protein: NF-kappaB