Lab-Grown Primordial Sperm

Scientists have reprogrammed human skin cells into immature sperm cells.

By | May 2, 2014

WIKIMEDIA, PUBLIC DOMAIN IMAGESResearchers have produced early-stage sperm cells, called primordial germ-cell-like cells (PGCLCs), from an adult male’s skin cells, according to a study published this week (May 1) in Cell Reports. A team led by Renee Reijo Pera, previously of Stanford University and now at Montana State University, used skin cells from three men who had Y chromosome gene defects that prevented them from producing sperm.

The researchers first converted the skin cells into induced pluripotent stem cells (iPSCs), and then transplanted the IPSCs into mouse testes, where they were differentiated into PGCLCs. Although only 1 percent of men have genetic defects that make them unable to produce sperm, the team suggested that engineering similar stem cells from other tissues could one day help cancer survivors who have lost the ability to produce sperm.

The work is still early-stage, but the researchers are optimistic about its potential. “Based on what we’ve seen so far, it looks quite likely that we will be able to finally produce sperm cells from a person’s own cells, which means sperm with their own genetic information,” Pera told U.S. News and World Report.

“You’ll never restore them back to normal, but they might have a few months or years of making sperm that's enough to give them fertility back,” said Allan Pacey, who studies andrology at Sheffield University in the U.K. and was not involved in the research, in an interview with The Guardian.

Some scientists questioned whether this new technique will succeed when several other promising techniques in the past have not. “It’s very, very hard to extrapolate any data from mice into humans,” David Smotrich, a fertility specialist in La Jolla, California, told U.S. News and World Report. “Nothing we’ve done has translated into anything that can be actively used to treat patients.”

Add a Comment

Avatar of: You

You

Processing...
Processing...

Sign In with your LabX Media Group Passport to leave a comment

Not a member? Register Now!

LabX Media Group Passport Logo

Popular Now

  1. Top 10 Innovations 2016
    Features Top 10 Innovations 2016

    This year’s list of winners celebrates both large leaps and small (but important) steps in life science technology.

  2. Gut Microbes Linked to Neurodegenerative Disease
  3. Pubic Hair Grooming Linked to STI Risk
    The Nutshell Pubic Hair Grooming Linked to STI Risk

    Observational study suggests pubic hair grooming correlates with heightened risk of acquiring sexually transmitted infections, although causation remains unclear.

  4. Naive T Cells Find Homes in Lymphoid Tissue
Rockland