1439
We report differences in (Ca2+)i requirement for NF-kB activation in thymocytes as compared to mature T cells .
 cell type: T cells; protein: NF-kB; cell type: thymocytes
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:
 cell type: T cells; protein: NF-kB; cell type: thymocytes