Reprogrammed adult cells treat sickle-cell anemia in mice

Mice with a human sickle-cell anemia disease trait have been treated successfully in a process that begins by directly reprogramming their own cells to an embryonic-stem-cell-like state, without the use of eggs. This is the first proof-of-principle of therapeutic application in mice of directly reprogrammed “induced pluripotent stem” (IPS) cells, which recently have been derived in mice as well as humans.