pluristem has a patent on THEIR version of a 3D bioreactor that grows placental stem cells.
aastrom did some pre clinical work with their 3D stem cell bioreactor and didn't move forward.
basically the 3d reactor isn't unique to pluristem. google 3d bioreactor stem cell.
pluristem potenital comes down to, do placenta drived cells work better than other cells?
3D bioreactors make lots of cells. each production method makes a unique product in the eyes of the FDA. lets see if psti cells work better than others.
IF aastrom had ANY issue with quality or quantity of cells, they had another means to grow larger quantity that they didn't develope further. they now have a steak in the start up that they licensed to.
basically the guy that built the thing thinks it has other applications and doesn't like to see his invention shelved. win/win for aastrom. other peoples capital will develope the potential while aastrom retains the rights.