11697
CONCLUSIONS: Our results establish that PI 3-kinase can both positively and negatively regulate T-cell function , and uncover a previously unrecognized function for PI 3-kinase in T cells as a selective negative regulator of TCR -signalling events and therefore as a determinant of T-cell homeostasis .
 protein: TCR; cell type: T cells; protein: PI 3-kinase; protein: PI 3-kinase
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: TCR, T cells, PI 3-kinase, PI 3-kinase 
Answer:
 protein: TCR; cell type: T cells; protein: PI 3-kinase; protein: PI 3-kinase