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Home NEWS Science News Science

New compound could help treat ovarian cancer

Bioengineer by Bioengineer
February 20, 2019
in Science
Reading Time: 3 mins read
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  • Scientists find new drugs compound for treating cancer
  • Cancer is less likely to become resistant to the compound than standard chemotherapy
  • The compound could be particularly effective against ovarian cancer

Scientists from the University of Sheffield have discovered a compound that could be more effective in treating certain cancers than standard chemotherapy.

Chemotherapy is still the first line of defence for most cancer tumours and is often highly effective. However, many cancers are naturally resistant, or develop resistance, to commonly used first-line chemotherapy drugs like cisplatin.

Researchers from the University of Sheffield’s Departments of Biomedical Science and Chemistry collaborated to identify new drug-candidates that would work against these types of treatment resistant cancers.

In the paper, published in the Journal of the American Chemical Society, scientists screened new compounds made in the lab against a “panel” of cancers that were sensitive and resistant to standard cancer therapy.

The researchers also tested the compounds with non-malignant cells to see how toxic they were to normal cells. They found two lead compounds that had low toxicity to non-malignant cells but were highly active against cancer cells sensitive or resistant to standard treatment.

Professor Jim Thomas, from the University’s Department of Chemistry, said: “Many cancer cells – about 20 per cent – become resistant to common treatments by learning to ignore the internal signals that tell them to undergo programmed cell death, known as apoptosis.

“We have identified a compound that kills cancer cells that avoids the need for apoptosis, and so the usual resistance mechanism doesn’t work against our compound.

“The compound is as potent as common current chemotherapeutics, but crucially retains its potency against treatment-resistant cancers. By looking at the cellular response from the cancers we found the new drug lead works by two different mechanisms simultaneously, making it much more difficult for cancers to develop resistance toward them during treatment.

“We think this compound could be particularly effective against ovarian cancer.”

The team used a technique called “proteomics” to determine how thousands of proteins in the cells responded to exposure to the drug lead.

Professor Carl Smythe, from the University’s Department of Biomedical Science, said: “Proteomics is a remarkably powerful approach we have in Sheffield to identify how living things respond to new drug candidates. The multiple mechanisms of action of the new molecules was an unexpected and exciting result.”

Researchers now want to carry out further studies to find out if the compound can be used in combination with current treatments to improve their performance.

Professor Thomas added: “We also want to discover if we can identify derivatives that further enhance the effectiveness of the drugs without being harmful to ‘normal’ non-malignant cells and discover against what types of cancers the compounds are most effective.”

###

Media contact: Clare Parkin, Media Relations Officer, on 0114 222 9851/222 1047 or email [email protected]/[email protected]

Notes to editors:

The University of Sheffield

With almost 29,000 of the brightest students from over 140 countries, learning alongside over 1,200 of the best academics from across the globe, the University of Sheffield is one of the world’s leading universities.

A member of the UK’s prestigious Russell Group of leading research-led institutions, Sheffield offers world-class teaching and research excellence across a wide range of disciplines.

Unified by the power of discovery and understanding, staff and students at the university are committed to finding new ways to transform the world we live in.

Sheffield is the only university to feature in The Sunday Times 100 Best Not-For-Profit Organisations to Work For 2018 and for the last eight years has been ranked in the top five UK universities for Student Satisfaction by Times Higher Education.

Sheffield has six Nobel Prize winners among former staff and students and its alumni go on to hold positions of great responsibility and influence all over the world, making significant contributions in their chosen fields.

Global research partners and clients include Boeing, Rolls-Royce, Unilever, AstraZeneca, Glaxo SmithKline, Siemens and Airbus, as well as many UK and overseas government agencies and charitable foundations.

Media Contact
Clare Parkin
[email protected]
01-142-229-851
http://dx.doi.org/10.1021/jacs.8b09999

Tags: Biomedical/Environmental/Chemical EngineeringChemistry/Physics/Materials Sciences
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