Let us begin with a fact that is both strikingly self-evident to a cell therapist and startling to someone outside the field: in vitro fertilization (IVF) is cell therapy. It is, in fact, among the most common cell therapies in human use. It has been a reproductive option for more than four decades and has produced roughly eight to ten million children. Many of those IVF babies are now adults with children of their own—typically produced without any need for in vitro fertilization. It has become so familiar, indeed, that we don’t even imagine it as cellular medicine, although, of course, it is
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