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First melanoma test offers reassurance of low risk of cancer spread: Research

A team of researchers has developed a test that reliably predicts the spread or return of the most deadly form of skin cancer.

First melanoma test offers reassurance of low risk of cancer spread: Research
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The study has been published in the 'British Journal of Dermatology'. The technological advance came as they made a scientific breakthrough in understanding the mechanism of skin cancer growth. Led by Professor Penny Lovat at Newcastle University, UK, in association with the University spin-out company AMLo Biosciences, the test offers reassurance for patients diagnosed with early-stage melanoma. By applying the test - called AMBLor® - to the standard biopsy of the primary melanoma on its removal, patients who are at low risk of the disease reoccurring or spreading can be identified.

 With the support of the National Institute for Health Research (NIHR) to develop the provision and work with AMLo Biosciences, a referral service is now available where sections from a patient's melanoma can be posted to a lab for analysis. The test identifies a patient's true risk of disease progression and provides anyone diagnosed with a non-ulcerated early-stage melanoma - accounting for around 75 per cent of all new diagnoses - more accurate information about the risk of the disease spreading. 

Melanoma is increasing worldwide and every year more than 16,000 people in the UK and 96,000 people in the US are diagnosed with cancer. In the new research, the authors explained how early-stage melanomas at risk of spreading secrete a growth factor, TGFb2 which causes the reduction, or downregulation, of the proteins AMBRA1 and Loricrin - both of which are found in the skin overlying the tumour. The growth factor TGFb2 also causes the loss of claudin-1 leading to loss of the integrity of the skin and facilitating ulceration.

Senior author Professor Penny Lovat, Professor of Cellular Dermatology and Oncology at Newcastle University and Chief Scientific Officer at AMLo Biosciences explained, "Like mortar and bricks holding together a wall, AMBRA1, Loricrin and Claudin 1 are all proteins key to maintaining the integrity of the upper layer of the skin. When these proteins are lost gaps develop - like the mortar crumbling away in the wall. 

This allows the tumour to spread and ultimately ulcerate which we know is a process associated with higher risk tumours. "Our new understanding of this biological mechanism underpins the test we have available," she added. Cory Inglis, 49, lives on the South Coast, and AMBLor®is about to be used on his standard biopsy after a diagnosis of a melanoma on his back. He explained, "When you sit down with a dermatologist after the initial excision, you hear that it wasn't a mole, it was a melanoma. You are in a state of fear. It's overwhelming. At that moment a lot of the information that is provided is in very impenetrable, technical language. 

You ask yourself, what does it mean for me? To be able to have a test like this which provides you with results of the melanoma being low or at risk can help your medical team communicate the information in a way that is comprehensible, and importantly to help them to make the right subsequent decisions for you." "A test, like AMBLor® which tells you that your tumour is genuinely low risk helps significantly with the anxiety of an already very stressful situation. Patients will understand what a low-risk result means. If the result is at risk, it completely justifies the significant number of interactions that you will have with the dermatology team over a 5-year period. I don't see any downside in providing the dermatology team with more information about your melanoma," he added. Professor Penny Lovat added, "Our test offers a personalised prognosis as it more accurately predicts if your skin cancer is unlikely to spread. This test will aid clinicians to identify genuinely low-risk patients diagnosed with early-stage melanoma and to reduce the number of follow-up appointments for those identified as low risk, saving NHS time and money."

 Phil Brady, Chief Operating Officer of, British Skin Foundation said, "The British Skin Foundation is proud to support Prof Penny Lovat's ground-breaking melanoma research. The development of the AMBLor test can alleviate stress and anxiety for patients caused by this potentially deadly skin cancer, whilst increasing efficiency and reducing costs to the NHS." Professor Nick Levell, Consultant Dermatologist & British Skin Foundation spokesperson who has not been involved in the research said, "This is excellent news. This new test for melanoma will help many people with skin cancer. People at low risk can be reassured and will not have to attend the hospital so often for check-ups. This British Skin Foundation co-funded research is an important step forward in making care after melanoma more personal." Currently, primary tumours are removed by surgery and pathologists study the biopsy under the microscope to determine the stage the skin cancer is at and the risk of it spreading (metastasis). Even if defined as low risk, the patient is followed up in the clinic for as long as five years - and it is these patients that the test is able to identify. 

The AMBRA1 and loricrin test is accredited by UKAS and is already available through a private referral service from the spin-out company, AMBLo Biosciences. The test involves tissue sections from the standard biopsy being sent in the post to the lab for analysis. The Newcastle team has also submitted an application for the test to be made available on the NHS.

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