# Researchers replace much of a mouse cortex with human brain cells

https://mins.news/en/item/61685

- Ars Technica, 2026-09-16 19:08 UTC
- Science
- Original: https://arstechnica.com/science/2026/09/researchers-swap-in-human-brain-cells-for-a-mouses-cortex/

> A Stanford University research group described replacing a large portion of a mouse brain, genetically removed beforehand, with cells from a human brain organoid. The approach could provide a more natural setting for studying organoids, which model specialized cells and tissue structures but lack features such as blood circulation, immune cells, and connections to other brain structures.

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