5666
A reporter construct containing the 5'-flanking region of the mouse TNF-alpha gene displayed weak activity when transfected into RAW264.7 macrophage-like cells .
 RAW264.7 macrophage-like cells, 5'-flanking region, reporter construct, TNF-alpha gene, 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:
 RAW264.7 macrophage-like cells, 5'-flanking region, reporter construct, TNF-alpha gene, TNF-alpha