483
In contrast, the expression of actin and fibronectin receptor mRNA was more sustained, and the expression of these genes remained elevated at 24 to 48 h after M-CSF addition .
 protein: M-CSF
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: M-CSF