10801
In contrast, the characterization of transcription factors selectively regulating cytokine production by CD4+ T cell subsets is at a very early stage.
 cell type: CD4+ T cell subsets; protein: transcription factors
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: CD4+ T cell subsets, transcription factors 
Answer:
 cell type: CD4+ T cell subsets; protein: transcription factors