How can we make sperm from stem cells

It must end By Sean Fogler. Sertoli cells create formation of SSC niches through secretion of specific growth factors, and inducing output of secreted factors from Leydig cells and other interstitial cell populations [ 40 ]. Hayashi, X. Zhang and L. What we want to do is use stem cells to be able to generate germ cells outside the human body so that this kind of infertility can be overcome. I had no luck in becoming a sperm-donor earlier on in my life and now at 50, too old to be accepted as one.

NPR Shop. Clinically, this could eventually give new options to infertile couples who want to have biological children. Scientists say they have taken a potentially important — and possibly controversial — step toward creating human eggs in a lab dish. And much more research would be needed to create eggs that could be useful — and safe — for human reproduction. But the prospect of being able to mass-produce human eggs in labs raises a host of societal and ethical issues. These cells, like embryonic stem cells, have the potential to form all cell types of the body, including eggs and sperm.

Purification of PGCs was critical for removing those unwanted cell types. The Japanese study marks the first time a mammal has been created from stem cells. By creating sperm and eggs from embryonic stem cells, scientists hope to better understand the reproductive process and embryos. NPR Shop. But such a possibility would also have much broader implications, say others following the field.