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Home NEWS Science News Health

Drug target could fight Parkinson’s and Alzheimer’s disease

Bioengineer by Bioengineer
March 3, 2021
in Health
Reading Time: 2 mins read
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Credit: The University of Queensland

Neurodegenerative disorders such as Parkinson’s and Alzheimer’s disease are in the firing line after researchers identified an attractive therapeutic drug target.

An international collaboration, co-led by University of Queensland researchers, has isolated and analysed the structure and function of a protein found in the brain’s nerve fibres called SARM1.

Dr Jeff Nanson said the protein was activated when nerve fibres were damaged by injury, disease, or as a side effect of certain drugs.

“After a damaging incident occurs, this protein often induces a form of nerve fibre degeneration – known as axon degeneration – a ‘self-destruct’ mechanism of sorts,” Dr Nanson said.

“This is a key pathological feature of many terrible neurodegenerative diseases, such as Parkinson’s and Alzheimer’s disease, and also amyotrophic lateral sclerosis (ALS), traumatic brain injury, and glaucoma.

“There are currently no treatments to prevent this nerve fibre degeneration, but now we know that SARM1 is triggering a cascade of degeneration we can develop future drugs to precisely target this protein.

“This work will hopefully help design new inhibiting drugs that could stop this process in its tracks.”

Professor Bostjan Kobe said the researchers analysed the structure of the protein and defined its three-dimensional shape using X-ray crystallography and cryo-electron microscopy.

“With X-ray crystallography, we make proteins grow into crystals, and then shoot X-rays at the crystals to get diffraction,” Professor Kobe said.

“And with cryo-electron microscopy, we freeze small layers of solution and then visualise protein particles by a beam of electrons.

“The resulting 3D images of SARM1’s ring-like structure were simply beautiful, and truly allowed us to investigate its purpose and function.

“This visualisation was a highly collaborative effort, working closely with our partners at Griffith University and our industry partners.”

The researchers hope that the discovery is the start of a revolution in treatments for neurodegenerative disorders.

“It’s time we had effective treatments for these devastating disorders,” Dr Nanson said.

“We know that these types of diseases are strongly related to age, so in the context of an ageing population here in Australia and globally, these diseases are likely to increase.

“It’s incredibly important that we understand how they work and develop effective treatments.”

###

The research is published in Neuron (DOI: 10.1016/j.neuron.2021.02.009).

The study was led by researchers at UQ, Griffith University, Washington University (St Louis), and industry partner Disarm Therapeutics.

Media Contact
Professor Bostjan Kobe
[email protected]

Original Source

https://science.uq.edu.au/article/2021/03/drug-target-could-fight-parkinson%E2%80%99s-and-alzheimer%E2%80%99s-disease

Related Journal Article

http://dx.doi.org/10.1016/j.neuron.2021.02.009

Tags: AlzheimerBiologyCell BiologyChemistry/Physics/Materials SciencesMedicine/HealthneurobiologyNeurochemistry
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