12843
Cross-linking of FcR , on the THP-1 monocytic cell line , by immune complexes resulted in both activation of the transcription factor NF-kappaB and interleukin 1 production .
 FcR, interleukin 1, THP-1 monocytic cell line, transcription factor, NF-kappaB, immune complexes
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:
 FcR, interleukin 1, THP-1 monocytic cell line, transcription factor, NF-kappaB, immune complexes