New Cellular Imaging Paves Way for Cancer Treatment

Researchers at the Universities of York and Leiden have pioneered a technique which uses florescent imaging to track the actions of key enzymes in cancer, genetic disorders and kidney disease. Scientists hope this new development will aid drug design for new anti-cancer, inflammation and kidney disease treatments.

It will also provide diagnostic tools for disease identification and allow medical professionals to measure the effectiveness of drug treatment regimes in an easy laboratory manner.

Studying heparanase - a key enzyme in the development and metastasis of human cancers - scientists unveiled new fluorescent imaging agents that detect enzyme activity in healthy and diseased tissues.

The research, published in Nature Chemical Biology, builds upon previous work revealing heparanase's three-dimensional structure.

Heparanase is a long-studied protein in human tissues involved in breaking down the complex sugars of the "extracellular matrix" - the material surrounding cells that provides structure and stability.

Heparanase dysfunction is linked to the spread of cancers both through the breakdown of this matrix and via the subsequent release of "growth factors" - chemicals that promote tumour development.

Through its remodelling of the matrix, heparanase is also a key player in inflammation and kidney disease. It is therefore a major drug, and diagnostic probe, target.

Gideon Davies, Professor of Structural Enzymology and Carbohydrate Chemistry at the University of York, said: "Heparanase is a key human enzyme. Its dysregulation is involved in inherited genetic disorders, and it is also a major anti-cancer target and increasingly implicated in kidney disease.

"Our work allows us to probe the activity of heparanase in human samples - allowing early disease identification and a direct measure of the success of drugs in humans.

"This work is a great example of the power of EU collaboration and science funding from the European Research Council."

Hermen Overkleeft, Professor of Bio-Organic Synthesis at Leiden University, added: "This work reveals the power of activity-based protein profiling: the probe described here at once enables screening for heparanase inhibitors from large compound collections and is a lead compound for drug development in its own right.

"While the road to heparanase-targeting clinical drugs is long and fraught with risks, with this work we believe to have taken a major step in realising the therapeutic potential of this promising clinical target."

Wu L, Jiang J, Jin Y, Kallemeijn WW, Kuo CL, Artola M, Dai W, van Elk C, van Eijk M, van der Marel GA, Codée JDC, Florea BI, Aerts JMFG, Overkleeft HS, Davies GJ.
Activity-based probes for functional interrogation of retaining β-glucuronidases.
Nat Chem Biol. 2017 Jun 5. doi: 10.1038/nchembio.2395.

Most Popular Now

European Artificial Intelligence Act Com…

The European Artificial Intelligence Act (AI Act), the world's first comprehensive regulation on artificial intelligence, enters into force. The AI Act is designed to ensure that AI developed and used...

Patient Safety must be Central to the De…

An EPR system brings together different patient information in one place, making it easier to access for healthcare professionals. This information can include patients' own notes, test results, observations by...

ChatGPT Shows Promise in Answering Patie…

The groundbreaking ChatGPT chatbot shows potential as a time-saving tool for responding to patient questions sent to the urologist's office, suggests a study in the September issue of Urology Practice®...

Survey: Most Americans Comfortable with …

Artificial intelligence (AI) is all around us - from smart home devices to entertainment and social media algorithms. But is AI okay in healthcare? A new national survey commissioned by...

AI Spots Cancer and Viral Infections at …

Researchers at the Centre for Genomic Regulation (CRG), the University of the Basque Country (UPV/EHU), Donostia International Physics Center (DIPC) and the Fundación Biofisica Bizkaia (FBB, located in Biofisika Institute)...

Video Gaming Improves Mental Well-Being

A pioneering study titled "Causal effect of video gaming on mental well-being in Japan 2020-2022," published in Nature Human Behaviour, has conducted the most comprehensive investigation to date on the...

Machine learning helps identify rheumato…

A machine-learning tool created by Weill Cornell Medicine and Hospital for Special Surgery (HSS) investigators can help distinguish subtypes of rheumatoid arthritis (RA), which may help scientists find ways to...

New Diabetes Research Links Blood Glucos…

As part of its ongoing exploration of vocal biomarkers and the role they can play in enhancing health outcomes, Klick Labs published a new study in Scientific Reports - confirming...

New AI Software could Make Diagnosing De…

Although Alzheimer's is the most common cause of dementia - a catchall term for cognitive deficits that impact daily living, like the loss of memory or language - it's not...

A New AI Tool for Cancer

Scientists at Harvard Medical School have designed a versatile, ChatGPT-like AI model capable of performing an array of diagnostic tasks across multiple forms of cancers. The new AI system, described Sept...

Vision-Based ChatGPT Shows Deficits Inte…

Researchers evaluating the performance of ChatGPT-4 Vision found that the model performed well on text-based radiology exam questions but struggled to answer image-related questions accurately. The study's results were published...

Bayer Launches New Healthy-Aging Ecosyst…

Combining a scientifically formulated dietary supplement, a leading-edge wellness companion app, and a saliva-based a biological age test by Chronomics, Bayer is taking a big step in the emerging healthy-aging...