organoid

An extraordinary new study has detailed the development of a nearly complete mouse embryo – with muscles, blood vessels and a tiny beating heart – grown in a lab dish out of stem cells, presenting the most sophisticated “embryo in a dish” created to date.

Scientists at UCLA and Stanford University have carried out a first-of-a-kind analysis of 20-month-old lab-grown brain organoids to find that they had matured much like a human brain, following an internal clock to guide their development.