That's right. Take blood cells, add acid, get stem cells. It's as simple as it sounds.
A team of Japanese scientists stumbled upon the method after observing a similar phenomenon in plants, where environmental stress can morph an ordinary cell into an immature one. New plants could then grow from the immature cell. This has also been known to happen in birds and reptiles, so the team from the Riken Center for Developmental Biology set out to see if something similar could happen with mammals.
They started with mice, of course. Sure enough, when they exposed blood cells from mice to acid, a transformation began. While some of the blood cells died, many became stem cells within a couple of days. "It looks a bit too good to be true, but the number of experts who have reviewed and checked this, I'm sure that it is," Chris Mason, professor of regenerative medicine at University College London, told the BBC. "If this works in people as well as it does in mice, it looks faster, cheaper and possibly safer than other cell reprogramming technologies—personalized reprogrammed cell therapies may now be viable." More here.