1153
However, DCs lack Sp1 , which may explain the failure of HIV-1 to replicate in purified DCs .
 cell type: DCs; protein: Sp1; cell type: DCs
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell type: DCs; protein: Sp1; cell type: DCs