cytokine reconstitution with fbs instead of bsa - (Nov/20/2014 )

I was wondering if I can use fetal bovine serum instead of bovine serum albumin in the cytokine reconstitution. 

fbs is serum and contains other proteins and factors including proteases, bsa is a purified serum protein. they are not the same and can't be directly substituted for each other.

Thanks mdfenko