Gay couples may soon be able to have their own biological kids

Human egg cells can now be created from donor blood — a brave new world is upon us.

  • Japanese scientists have successfully created immature human egg cells using stem cells.
  • The discovery builds on years of research into the uses of stem cells.
  • While the prospects for new fertility treatments are promising, the ethical questions raised by the procedure will have to be answered.

Japanese scientists have changed blood cells into stem cells which were then used to create immature human egg cells. While the new eggs are too immature to be of any use, the study, published on September 20 in Science, points the way to new fertility treatments as well as ethical concerns that are unlike anything we've encountered before.

How did they do it?

The scientists took human blood cells and used a previously known method to transform them into human pluripotent stem cells (hPSCs). These cells can be changed into any other cell, making them extremely useful in medical research and giving them endless potential for future treatments.

While previous studies have attempted to create lab-grown human eggs from stem cells before, those attempts were all unsuccessful. The trick, it seems, was to put the new egg cells into a miniature ovary built for this task out of cells taken from mice. This allowed the scientists to succeed where others had failed.

What can we do with this?

While the eggs produced in this study are immature and incapable of doing anything, there is reason to hope that over the long run fully functioning eggs will be created. This has already been done for mice, although making that work for human cells will be a little more difficult.

Artificially created mature human egg cells could be used in a variety of fertility treatments. They could be produced for those born infertile, people who have lost their fertility due to illness, or even for gay couples who want to have a child with their own genetic makeup and not that of a donor. On a more mundane level, mature eggs could be created on demand for research purposes.

The study's authors stated that the next step for them will be to try and produce mature egg and sperm cells that could actually be used for reproduction. It may only be a matter of time before fully functioning lab grown human gametes are a reality.

What are the ethical concerns?

This process currently allows immature eggs to be created that have the DNA of the blood cell donor. If the procedure is perfected and mature sperm and eggs can be produced, a brave new world of genetic selection may be upon us. One in which desirable DNA can be bought and sold to create gametes with desirable genetic qualities. Ronald Green, a Dartmouth bioethicist who often works on issues related to stem cells, explains one of the many strange possibilities that we may soon face:

A woman might want to have George Clooney's baby, and his hairdresser could start selling his hair follicles online. So we suddenly could see many, many progeny of George Clooney without his consent.

In addition to the possibility of genetic theft, the ability for any person to have their cells turned into eggs which could lead to a successful birth allows for the creation of children from the cells of the recently deceased. A creepy situation that we will undoubtedly have to reckon with.

People in need of new organs might see fit to have a child created with their DNA to provide a spare kidney a few years down the road. This is already happening in the form of ethically ambiguous savior siblings and was explored in the book and film My Sister's Keeper. Will the morality of the child's creation be any different if the child is tailor made for the person in need of a donor rather than the old fashioned way?

We must begin asking ourselves now how we will react to these ethical questions since the science won't slow down for us.

Should you defend the free speech rights of neo-Nazis?

Former president of the ACLU Nadine Strossen discusses whether our society should always defend free speech rights, even for groups who would oppose such rights.

Sponsored by Charles Koch Foundation
  • Former ACLU president Nadine Strossen understands that protecting free speech rights isn't always a straightforward proposition.
  • In this video, Strossen describes the reasoning behind why the ACLU defended the free speech rights of neo-Nazis in Skokie, Illinois, 1977.
  • The opinions expressed in this video do not necessarily reflect the views of the Charles Koch Foundation, which encourages the expression of diverse viewpoints within a culture of civil discourse and mutual respect.
Keep reading Show less

Belly fat: Gut bacteria checks could lead to personalized diets

The reason one diet does not suit all may be found in our guts.

Media for Medical / Getty Images
Surprising Science
Keep reading Show less

NASA releases stunning image of ISS crossing in front of the sun

Strangely, the sun showed no sunspots at the time the photo was taken.

Image source: Rainee Colacurcio
Surprising Science
  • The photo shows the International Space Station as it orbits the Earth, as it does every 90 minutes.
  • The photo is remarkable because it offers a glimpse of the star at a time when there were no sunspots.
  • In November, astronauts aboard the ISS plan to grow Española chili pepper plants.
Keep reading Show less

‘Apollo 11 in Real Time’ website replays every second of historic mission

July 16, 2019 marks the 50th anniversary of the mission that first landed a man on the Moon.

Technology & Innovation
  • The website includes lets viewers experience the mission through 11,000 hours of audio, thousands of photographs and multiple camera angles.
  • Apollo 11 lasted just over eight days.
  • Only 12 men have walked on the Moon so far. NASA plans to return to the lunar surface in 2024.
Keep reading Show less