in contrast to so ifn beta and so ifn gamma , so ifn alpha , exhibited a high ( 100 % of activity in homologous cells ) cross species antiviral activity in mouse embryo fibroblasts ( mef ) and a low ( 3 % to 10 % of the activity ) in bovine embryo fibroblasts ( bef ) and human embryo fibroblasts ( hef ) .
C0007634
cells
C0016030
fibroblasts