Stem cells can be coaxed to self-assemble into structures resembling human embryos.
Yue Shao had never seen anything quite like it.
Two years ago, Shao, a mechanical engineer with a flair for biology, was working with embryonic stem cells, the kind derived from human embryos able to form any cell type. As he experimented with ways of getting cells to form more organized three-dimensional structures by growing them in scaffolds of soft gel, he was looking for signs of primitive neural tissue.
What drew his attention was that the cells seemed to change much faster than expected—they arranged themselves rapidly over a few days into a lopsided circle.
What was it? Shao startled Googling to see if he could identify the structure. That’s when he landed on a website called The Virtual Human Embryo and found some microscope photos of ten-day old human embryos shortly after implantation, fused to the uterine wall. There was the beginning of the amniotic sac and, inside it, the embryonic disc, or future body. They matched what he was seeing.
Since the “CRISPR babies” scandal in 2018, no additional genetically modified babies are known to have been born. Now several techno-enthusiastic billionaires are setting up privately funded companies to genetically edit human embryos, with the explicit intention of creating genetically modified children.
Heritable genome editing remains prohibited by policies in the overwhelming majority of countries that have any relevant policy, and by a binding European treaty. Support for keeping it legally off limits is widespread, including among scientists...
Scientists have created fertile mice from male genetic material alone, a breakthrough that could one day open the door to human babies who inherit their genes from two fathers.
The experiment, led by Professor Yanchang Wei at Shanghai Jiao Tong...
By Ron Leuty, San Francisco Business Times | 06.16.2025
Aggregated News
23andMe's two-step sale to a nonprofit led by former CEO Anne Wojcicki is nothing more than a dance around California's genetic privacy law, state Attorney General Rob Bonta said in a filing late Monday, one day before a judge will...
The Center for Genetics and Society is fiscally sponsored by Tides Center, a 501(c)(3) non-profit organization.
Please visit www.tides.org/state-nonprofit-disclosures for additional information.