11730
The results indicate that stimulation of NK cells , either freshly isolated from peripheral blood lymphocytes ( PBL ) or long-term cultured NK clones , with specific cell targets results in an increased binding activity of NF-kappa B and AP-1 transcription factors measured by gel retardation .
 cell type: peripheral blood lymphocytes; cell type: NK cells; cell type: PBL; protein: NF-kappa B; protein: AP-1; cell line: long-term cultured NK clones; 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: peripheral blood lymphocytes, NK cells, PBL, NF-kappa B, AP-1, long-term cultured NK clones, transcription factors 
Answer:
 cell type: peripheral blood lymphocytes; cell type: NK cells; cell type: PBL; protein: NF-kappa B; protein: AP-1; cell line: long-term cultured NK clones; protein: transcription factors