3882
The IFN-gamma mRNA is induced/inhibited in these cell types by a wide variety of extracellular signals , thus implicating a number of diverse, yet convergent signal transduction pathways in its transcriptional control .
 IFN-gamma mRNA, IFN-gamma
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:
 IFN-gamma mRNA, IFN-gamma