HCR Update from Mark Sanna: Stem cells are cells that are able to differentiate into specialized cell types, aiding tissue regeneration, cardiovascular disease and blood disease treatments. But now, researchers have found that stem cells from teeth grow to resemble brain cells, a discovery they say could be harnessed in the brain for stroke therapy. The team, from the University of Adelaide in Australia, published their results in the journal Stem Cell Research & Therapy.