There is actually a study going on, and seeking participants, for stem cell transplantation. I don't have MS, rather MG. I underwent an immune system reboot in November (very similar to SCT) and am doing very well now. I've been researching everything for 2 friends with MS, hence my lurking on this board.
Anyway, if anyone is interested:
http://www.stemcell-immunotherapy.org/ If/when my myasthenia symptoms reactivate, I will be seeking this treatment.
Take care everyone.