For now, that goal remains elusive. The lab-grown cells stopped developing at an immature stage. Many hurdles need to be ...

Imagine a future where a diagnosis of untreatable male infertility is no longer the end of the road—because science has found a way to produce human sperm from lab-engineered testicular tissue. This ...

Lab-grown sperm could soon become a reality after scientists were able to create germ cells, the precursor to reproductive cells.

Imagine a future where a diagnosis of untreatable male infertility is no longer the end of the road – because science has found a way to produce human sperm from lab-engineered testicular tissue. This ...

We all know the drill for reproduction—sperm meets egg. But mice aren’t people. And the same recipe doesn’t work for human reproductive cells. One reason, according to Dr. Mitinori Saitou at Kyoto ...

Katsuhiko Hayashi pulls a clear plastic dish from an incubator and slides it under a microscope. "You really want to see the actual cells, right?" Hayashi asks as he motions toward the microscope.

SALT LAKE CITY, May 13, 2026 /PRNewswire/ -- Paterna Biosciences, a fertility biotechnology company pioneering male reproductive medicine, has announced a landmark scientific achievement: the company ...

A startup in Utah, Paterna Biosciences, says it has successfully produced fully developed human sperm from testicular stem cells and used them to fertilize eggs, resulting in what researchers ...

July 10, 2026 expert reaction to study attempting to generate spermatogonia from human and macaque pluripotent stem cells in the lab . A study published in Cell Stem Cell looks at ...

Researchers are inching closer to mass-producing eggs and sperm in the lab from ordinary human cells. The technique could provide new ways to treat infertility but also open a Pandora's box. We are ...

A colony of human embryonic stem cells is seen on a computer monitor at the University of Wisconsin–MadisonDarren Hauck / Getty Researchers at Newcastle University in England report they have coaxed ...