I have been following the Stem Cells Australia website and there has been a study looking at the safety issues of stem cell therapy. I think safety is incredibly important as it is great when a treatment looks to be working, but if things can go wrong further down the track it can be disastrous. The Universities of Melbourne and NSW were apart of the study as well as the CSIRO (Commonwealth Scientific and Industrial Research Organisation). They found that some stem cells after prolonged growth can have genetic changes (like that of cancer), but the majority will not change. The study states that if the changing stem cells can be eliminated it would reduce further complications down the track.
Safety is paramount when dealing with the human body. I think I'd be quite nervous being apart of studies and I admire the bravery of those who do. Safety studies like this help eliminate adverse possibilities and I think it is promising that there is so much research focusing on stem cells.
Here's the link to the Stem Cells Australia website, with further links at the bottom of their page.
Stem Cells Australia