started · updated
Stanford researchers develop xenocortication to transplant human brain tissue into mice
Researchers at Stanford University have developed a breakthrough method called xenocortication to study human brain function using animal models. In a study published in the journal Nature, scientists successfully transplanted human cortical organoids—miniature, lab-grown brain tissues—into mice that were genetically engineered to lack most of their own cerebral cortex and hippocampus.
This approach creates a hospitable environment for the human tissue to expand and integrate. The transplanted human cells were observed to thrive, expanding nearly fivefold over a three-month period and forming functional neural connections with the host's nervous system, including projections to the spinal cord. The transplantation was successful in 25 out of 29 attempts.
The xenocortical mouse model provides a unique platform to investigate neurodevelopmental and psychiatric conditions that are difficult to study in traditional models, such as autism, epilepsy, and cerebral palsy. Specifically, the model can be used to study the effects of hypoxia on brain development. While the technology offers transformative potential for testing therapeutics, it has also prompted discussions among ethicists regarding the implications of using such models in larger or longer-living animals.
Entities
Allen Institute · Nature · Sergiu Pașca · Stanford University · University of Pennsylvania
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 8 SOURCES] Researchers developed a method called xenocortication to transplant human cortical organoids into mice. www.insideprecisionmedicine.com · www.thetransmitter.org · www.kpbs.org · www.sciencenews.org · www.ksfr.org · +3 more
- [● 5 SOURCES] Mice were genetically engineered to lack most of their cerebral cortex and hippocampus to create space for human tissue. www.thetransmitter.org · www.kpbs.org · www.sciencenews.org · www.ksfr.org · adevarul.ro
- [○ 1 SOURCE] The xenocortical mouse model can be used to study hypoxia and its links to cerebral palsy, autism, and epilepsy. www.thetransmitter.org
- [○ 1 SOURCE] The transplanted human tissue expanded nearly fivefold over a three-month period. www.sciencenews.org
- [○ 1 SOURCE] The transplantation of human brain organoids into the engineered mice was successful in 25 out of 29 attempts. www.sciencenews.org
- [○ 1 SOURCE] Hongjun Song noted the model allows for testing with human cells in live animals. www.thetransmitter.org
- [○ 1 SOURCE] Hongkui Zeng described the technology as a powerful way to study human neurons and circuit formation in a natural environment. www.ksfr.org
- [● 2 SOURCES] Sergiu Pașca stated the goal of the research is to make human brain development and function accessible for investigation to develop therapeutics. www.ksfr.org · www.sciencenews.org