For MGF, the GH and Insulin Workout might be best. Most MGF is all inside the cell.
HGF is the mitogenic factor that promotes proliferation by attaching to a membrane bound extracellular receptor.
It would work, but you wont find HGF. The best thing that you could do is use some sort of potentiator such as Dihexa.
Yet with all mitogens, you'll need a complimentary increase in anti-tumor P53 activity.
Guinea Pigs Ahoy!