Do Pluripotent Stem Cells Offer a New Path to Reproduction?

The ability of pluripotent stem to develop into any of the cell types in the human body has meant that it was only a matter of time before scientists would try to transform them into human gametes. Up to now though it has not been possible to do so. Nevertheless a 2016 book written by Henry Greely speculated that in twenty to forty years most people in developed countries will cease reproduction through sex, using sex exclusively for pleasure, and instead will rely on reproduction through pluripotent stem cell-derived gametes. This paper will offer a different perspective. After describing the process through which human pluripotent stem cells might eventually be coaxed into gametes, it will show why the use of pluripotent stem cell-derived gametes for reproductive purposes would present significant safety, ethical, and regulatory challenges.