7259
Both the parental and the oncogene expressing fibroblasts similarly triggered phosphoinositide hydrolysis in the bound NK cells , demonstrating that NK cells were cytolytically activated in contact with both resistant parental and oncogene expressing sensitive target fibroblasts .
 ( cell type: NK cells, None) , ( cell type: NK cells, None) , ( cell type: oncogene expressing fibroblasts, None) , ( cell type: oncogene expressing sensitive target fibroblasts, 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 type: NK cells, None) , ( cell type: NK cells, None) , ( cell type: oncogene expressing fibroblasts, None) , ( cell type: oncogene expressing sensitive target fibroblasts, None) 