Stem cell scientist Paul Knoepfler of UC Davis writes:
"I support the letter by Associate Professor Leigh Turner of the University of Minnesota to the FDA asking for them to look into the CellTex situation. The safety of patients must be the primary consideration, and as I pointed out in a previous post a doctor working with CellTex recently naively said that the worst-case scenario for patients receiving their treatment is that it won’t work, when in reality the end result of any cell therapy theoretically can be the death or injury of patients."
You can read his entire post titled "Are stem cells drugs?" at the Knoepfler Lab Stem Cell Blog.