14787
The number of gamma-positive cells and their fluorescence intensity were higher in UT-7 Epo than in UT-7 cells (0 to 17% barely positive cells and 23 to 40% clearly positive cells, respectively), indicating that the increase in globin mRNA observed in UT-7 Epo is due to both an increase of gene expression per cell and an increase in numbers of cells containing gamma-globin .
 ( cell line: gamma-positive cells, None) , ( protein: UT-7 Epo, None) , ( RNA: globin mRNA, None) , ( cell line: UT-7 cells, None) , ( protein: UT-7 Epo, None) , ( protein: gamma-globin, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell line: gamma-positive cells, None) , ( protein: UT-7 Epo, None) , ( RNA: globin mRNA, None) , ( cell line: UT-7 cells, None) , ( protein: UT-7 Epo, None) , ( protein: gamma-globin, None) 