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 .
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 .
O O O O B-other_name O O O O O O O O O O O O O O O O O O O O O O O O B-protein_molecule O O