Organoids

Recent articles

Research image of toxoplasma gondii showing cysts it creates as well as the MECP2 protein that it can deliver to neurons.

Parasite-based tool delivers MECP2 and other proteins to neurons

A method that uses a common brain parasite could help replenish the proteins deficient in Rett syndrome and other conditions.

By Giorgia Guglielmi
12 September 2024 | 4 min read
Research image of a brain chimera containing neurons from rats and mice.
Ethics Microphone

Is it time to worry about brain chimeras?

Brains made of neurons from two species raise new concerns.

By Joshua R. Sanes
5 August 2024 | 9 min listen
Research image of fetal macaque brains.

Brain patterning in utero may be implicated in autism, other conditions

Genes tied to several conditions are expressed in regions that control neural stem cell fate within the first few months post-conception.

By Chloe Williams
1 August 2024 | 6 min read
Black-and-white research image of brain organoids.

Brain organoid size matches intensity of social problems in autistic people

Overgrown organoids could point to mechanisms underlying profound autism.

By Holly Barker
18 July 2024 | 5 min read
Research image of a chimeroid.

Brain ‘chimeroids’ reveal person-to-person differences rooted in genetics

These fusions created from multiple donors’ organoids may help scale up comparative brain research.

By Charles Q. Choi
5 July 2024 | 4 min read
Research image of two fluorescent-stained organoids.

CRISPR gives autism-linked genes a boost, rescues functioning

A modified form of the gene-editing tool increases the expression of CHD8 and SCN2A, showing potential for autism therapies.

By Giorgia Guglielmi
23 May 2024 | 5 min read
Research image of antisense oligonucleotides.

RNA drug corrects calcium signaling in chimeric model of Timothy syndrome

The drug, tested in rats that have human neurons, could enter clinical testing as early as next year, researchers say.

By Katie Moisse
24 April 2024 | 5 min read
Research image of microglia in mice.

Microglial overreaction to atypical neurons may drive autism

In mice and organoids lacking a neuronal protein, microglia prune synapses to excess.

By Holly Barker
21 March 2024 | 5 min read
Top down view of a slice of a rat brain connected to an output camera.

On a bold mission to re-engineer brain parts

A European consortium is on a quest to restore typical brain activity in people with epilepsy, using a mash-up of custom organoids, microelectronics and artificial intelligence.

By Rebecca Horne
24 January 2024 | 1 min read
A scientist looks into a microscope

Raising the bar for stem cell research: Q&A with Jack Mosher

New quality benchmarks for basic research involving stem cells promise to improve rigor and reproducibility, says Mosher, who helped develop the standards.

By Lauren Schenkman
10 October 2023 | 7 min read

Explore more from The Transmitter

Illustration of cranes attempting to assemble a structure out of very small black squares.

Reconstructing dopamine’s link to reward

The field is grappling with whether to modify the long-standing theory of reward prediction error—or abandon it entirely.

By Angie Voyles Askham
13 September 2024 | 18 min read
Illustration of cranes attempting to assemble a structure out of very small black squares.

Dopamine and the need for alternative theories

Some experimental findings are inconsistent with the dominant model of reward prediction error, highlighting the need for alternative testable and falsifiable models for dopamine function.

By Vijay Mohan K. Namboodiri
13 September 2024 | 7 min read
Illustration of several structures constructed out of small black squares, with scaffolding on some of the structures.

Does a new theory of dopamine replace the classic model?

My answer would be no, but the model poses challenges that will sharpen our understanding of dopamine and learning.

By Naoshige Uchida
13 September 2024 | 8 min read