Exotic fish clues aid cancer and dementia treatment in pioneering Yorkshire study - Yorkshire Post

Exotic fish clues aid cancer and dementia treatment in pioneering Yorkshire study - Yorkshire Post

Exotic fish clues aid cancer and dementia treatment in pioneering Yorkshire study - Yorkshire Post

Posted: 29 Jan 2021 12:00 AM PST

Thanks to a species of small exotic fish academics from a university in Yorkshire have taken a major step towards developing new treatments for cancer and dementia.

Friday, 29th January 2021, 7:00 pm

The University of Bradford said they have uncovered a "vital protection mechanism" in the DNA of zebrafish that could protect humans in later life and make diseases like cancer and dementia easier to treat.

Lead author Professor Sherif El-Khamisy, from the University of Bradford, told The Yorkshire Post: "This study highlights the power of zebrafish for the rapid discovery to find new treatments for cancer and dementia.

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"It is one of the most important projects that we have done, in the last 10 years."

Pictured, Zebrafish, a species of small exotic fish. Academics from the University of Bradford have taken a major step towards developing new treatments for cancer and dementia, thanks to studying them. Photo credit: Getty Images
Pictured, Zebrafish, a species of small exotic fish. Academics from the University of Bradford have taken a major step towards developing new treatments for cancer and dementia, thanks to studying them. Photo credit: Getty Images

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A Zebrafish's genome is very similar to that of humans, and scientists used cells from the popular aquarium fish to study how the protection process takes place.

"Zebrafish is a unique organism - that is very understudied for human research, " explained Professor El-Khamisy, the director of the Institute of Cancer Therapeutics, at the university.

He added: "The genome shares a very good similarity with humans - meaning all discoveries can be easily translated to humans."

Academics from the University of Bradford have taken a major step towards developing new treatments for cancer and dementia thanks to the help of Zebrafish. Photo credit: The University of Bradford

As part of the four year study scientists looked at how so-called 'DNA breaks' caused by things like disease, the treatment of diseases such as cancer, poor diet and other external factors, are repaired by the body.

Researchers discovered a marked difference in how the process of repairing broken DNA works in early and later life and subsequently identified a 'pathway' which might help better protect DNA in adulthood, when studying the zebrafish.

Findings from the project could help scientists develop new treatments for diseases including cancer and dementia.

Professor El-Khamisy said: "Protecting the genome from damage is critical to prevent diseases associated with ageing such as cancer and dementia.

Pictured, Professor Sherif El-Khamisy, from the University of Bradford. Photo credit: The University of Bradford.

"We removed an important genome protection pathway in fish and examined its impact across the lifespan.

"Protecting genomic integrity is fundamental to prevent disease, especially diseases associated with old age such as cancer and dementia.

"Thus, understanding how these protection mechanisms occur is important."

The next step is to use the zebrafish models generated in this study to screen for drugs or dietary supplements that could promote a healthier life at an old age.

A team of scientists from the University of Bradford have produced innovative research to aid the understanding of the causes of diseases including cancer, studying the popular aquarium fish - whose genome is very similar to that of humans.

Scientists will also look at the role played by certain enzymes in the repair of DNA, with the long term aim to be able to move to trial in humans.

Professor El-Khamisy added: "Using the zebrafish model will allow scientists to do screening to find these vital drugs... Once we have a positive hit from the screen we can take the next step.

"With this breakthrough we have identified this new pathway - from here we can push on, and utilise this knowledge to develop new drugs that would treat cancer and delay or prevent dementia."

The study is published in the science journal Science Advances.

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