Well, they make it sound like it's the soul, or possibly a section of the genome.
If it is a soul in the philosophical sense, the incorporal part of awareness that makes life so special, then i'm lost as to how.
If however, the soul is nothing more than extremely complex biology which some scholars believes, then it would merely intergrating the works of that biosci into the wolves.
So what's a soul and how to you move it? answer that and we may head in the right direction