3760
These data along with previous observations demonstrating the potent immunosuppressive activity of TGF-beta 2 , support a model for a feedback mechanism between the activated T-lymphocytes and astrocytes via TGF-beta 2 to regulate the immune response .
 cell type: astrocytes; protein: TGF-beta 2; cell type: T-lymphocytes; protein: TGF-beta 2
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: astrocytes, TGF-beta 2, T-lymphocytes, TGF-beta 2 
Answer:
 cell type: astrocytes; protein: TGF-beta 2; cell type: T-lymphocytes; protein: TGF-beta 2