Tia Ghose | Feb 17, 2009 | 3 min read
A neural stem cell transplant from fetal cells performed in Russia led to a brain tumor in a teenage boy, researchers in this week's PLoS Medicine report, raising concerns about the safety of neural stem cells treatments. MRI of brain lesion, courtesy of PLoS MedicineThe researchers confirmed that the cancer originated from the donor tissue, not the boy's own cells. This is the first report of cancer following fetal neural stem cell transplant. However, outside experts raised concerns about th