these two biochemically distinct characteristics , ie resistance to hydrogen peroxide and ability to secrete e type prostaglandin ( pge ) in contact with nk cells , macrophages and neutrophils , may both be expressed either in about 100 % of cells transformed by rous sarcoma virus , or in less than 0.1 % of cells transformed spontaneously .
C0033554
prostaglandin
C0033559
pge