5993
In contrast, BRL49653 significantly increased MCP-1 ( biotinylated MCP-1 ) binding to THP-1 cells , whereas RA had no effect.
 THP-1 cells, biotinylated MCP-1, MCP-1
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:
 THP-1 cells, biotinylated MCP-1, MCP-1