This work shows that stem cells can be used as drug delivery vehicles in the brain.

Adult stem cells tend not to form tumors.

Stem cells are probably going to be extremely useful.

Throughout our lifetimes, we are constantly regenerating new brain cells in the hippocampus, a process called neurogenesis. New stem cells are constantly being born in the hippocampus that ultimately differentiate into fully functional neurons.

My brain cells are dying in their trillions.

The beauty of this is you can use the stem cells as the Trojan horse. And once you put them in the brain, they make it (GDNF) for free.