10605
We used gel shift assays to determine whether SP-A activated NF-kappa B in the THP-1 cell line , a human monocytic cell line .
 SP-A, NF-kappa B, human monocytic cell line, THP-1 cell line
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 SP-A, NF-kappa B, human monocytic cell line, THP-1 cell line