Cell study may aid bid for motor neurone therapies

Scientists at the University of Edinburgh have been able to manipulate the production of motor neurones – which control all muscle activity – in zebrafish.

Zebrafish are important in helping scientists understand how motor neurones are produced, because unlike mammals, they are able to create new motor neurones as adults.

Humans can generate motor neurones during embryonic development but lose the ability to generate these cells, which are important for speaking, walking and breathing, after birth.

This means that the body is unable to replace these cells if they become damaged as a result of motor neurone disease, stroke or spinal cord injury.

The study, published in the Journal of Neuroscience, found that motor neurone production could be increased in adult zebrafish with a drug that inhibits the so-called notch-signalling pathway.

Dr Catherina Becker, from the University of Edinburgh's Centre for Neuroregeneration, said: “If we can find out more about the cell mechanisms involved in zebrafish to make motor neurones, we could potentially manipulate these pathways in humans with the hope of being able to generate new motor neurones.”

The research focussed on early stage cells – known as progenitor cells – in zebrafish, which have the ability to generate motor neurones.

Scientists found that when a protein – called Notch 1¬ – was expressed, signals were sent that stopped the progenitor cells from making motor neurones.

Stopping the Notch1 protein from sending these signals meant that researchers were able to increase the production of progenitor cells and motor neurones in the zebrafish.

Humans have progenitor cells, very similar to those found in zebrafish, which are located in the central nervous system. However, after embryonic development, these cells lose the ability to become motor neurones in humans.

The study could help research to find ways to turn progenitor cells into motor neurons following damage caused by motor neuron disease, spinal cord injury or stroke.

The research was funded by the Biotechnology and Biological Sciences Research Council, the Euan MacDonald Centre for Motor Neurone Disease Research at the University of Edinburgh, the Robert Packard Center for ALS Research at John Hopkins University and Tenovus Scotland.

Media Contact

Tara Womersley EurekAlert!

More Information:

http://www.ed.ac.uk

All latest news from the category: Health and Medicine

This subject area encompasses research and studies in the field of human medicine.

Among the wide-ranging list of topics covered here are anesthesiology, anatomy, surgery, human genetics, hygiene and environmental medicine, internal medicine, neurology, pharmacology, physiology, urology and dental medicine.

Back to home

Comments (0)

Write a comment

Newest articles

Lighting up the future

New multidisciplinary research from the University of St Andrews could lead to more efficient televisions, computer screens and lighting. Researchers at the Organic Semiconductor Centre in the School of Physics and…

Researchers crack sugarcane’s complex genetic code

Sweet success: Scientists created a highly accurate reference genome for one of the most important modern crops and found a rare example of how genes confer disease resistance in plants….

Evolution of the most powerful ocean current on Earth

The Antarctic Circumpolar Current plays an important part in global overturning circulation, the exchange of heat and CO2 between the ocean and atmosphere, and the stability of Antarctica’s ice sheets….

Partners & Sponsors