Human Brain Organoids Grown in Rats to Study Neurological Diseases

Researchers from Stanford University cultivated stem cells into three-dimensional clumps of tissue to make tiny blobs of lab-grown human brain cells measuring just a few millimeters in diameter. These tissues are called brain organoids that contain some of the cells and properties of the human brain, offering insights into the development of neurological diseases.

Previous experiments that tried transplanting them into rodents' brains failed to integrate them into the animals' brains. But this time, it worked, and the brain organoids formed connections, signaling that these bundles of cells could become more sophisticated.