Here is a good video about 4 ways stem cells will change the face of medicine
notice how at 39:53 of the video they speak about when the big pharmas, Roche, pfizer start to get in the game when a company is at stage 2 clinical trials and shows proof of concept ;-)
I would watch the whole video if you haven't seen it really interesting sounds like one of the process they talk about kinda sounds like the process that uses growth factors,, Dr Andrews institution has this process on his website.