13847
Moreover, transient transfection of the porcine B-cell line L23 showed up to 90% suppression of constitutive SLA-DR and SLA-DQ antigen expression in 5-8 days.
 cell line: porcine B-cell line L23
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: porcine B-cell line L23 
Answer:
 cell line: porcine B-cell line L23