Quite interesting. But something i don't understand, MS causes immune cells to attack the myelin cells. Depending on the severe of the attack the myelin cells are completly destroyed or even the nerv cells themselves are destroyed. Recreating the immun cells would prevent the immun cells from attacking the myelin cells, but what happens to the tissues which are already destroyed? As far as i know, the body is not able to repair all kind of destroyed nerv cells / myelin cells on his own. So how can this treatment help to repair/recover already destroyed tissue?