7407
Characterization of this cDNA clone revealed that its induction was dependent on LPS activation of THP-1 cells ; hence, the name LPS -induced TNF-alpha factor ( LITAF ).
 LITAF, THP-1 cells, LPS -induced TNF-alpha factor, cDNA clone, TNF-alpha
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:
 LITAF, THP-1 cells, LPS -induced TNF-alpha factor, cDNA clone, TNF-alpha