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New drug may reduce skin cancer spread by 90 per cent: Study

Scientists have developed a new compound that may pave the way for a potential new drug to fight the deadly skin cancer.

By: PTI | Washington |
January 7, 2017 11:19:43 am
Skin cancer, New drug for skin cancer, Skin cancer cells, melanoma cells, skin cancer drug, new vaccine for skin cancer, how to fight skin cancer, new drugs for skin cancer, how to treat skin cancer, skin cancer treatment, latest drug for skin cancer, science, science news Scleroderma is a rare and often fatal autoimmune disease that causes the hardening of skin tissue. (Source: AP)

Scientists have developed a new compound that reduces the spread of melanoma cells by up to 90 per cent, an advance that may pave the way for a potential new drug to fight the deadly skin cancer.

The man-made, small-molecule drug compound goes after a gene’s ability to produce RNA molecules and certain proteins in melanoma tumors.


This gene activity, or transcription process, causes the disease to spread but the compound can shut it down. Up until now, few other compounds of this kind have been able to accomplish this.

“It’s been a challenge developing small-molecule drugs that can block this gene activity that works as a signaling mechanism known to be important in melanoma progression,” said Richard Neubig, professor at Michigan State University (MSU) in the US.

“Our chemical compound is actually the same one that we’ve been working on to potentially treat the disease scleroderma, which now we’ve found works effectively on this type of cancer,” said Neubig.

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Scleroderma is a rare and often fatal autoimmune disease that causes the hardening of skin tissue, as well as organs such as the lungs, heart and kidneys. The same mechanisms that produce fibrosis, or skin thickening, in scleroderma also contribute to the spread of cancer.

The findings are an early discovery that could be highly effective in battling the deadly skin cancer. It is estimated about 10,000 people die each year from the disease.

“Melanoma is the most dangerous form of skin cancer with around 76,000 new cases a year in the US,” said Kate Appleton, a postdoctoral student at MSU.

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“One reason the disease is so fatal is that it can spread throughout the body very quickly and attack distant organs such as the brain and lungs,” said Appleton.

Researchers found that the compounds were able to stop proteins, known as Myocardin-related transcription factors, or MRTFs, from initiating the gene transcription process in melanoma cells.

These triggering proteins are initially turned on by another protein called RhoC (Ras homology C) which is found in a signaling pathway that can cause the disease to aggressively spread in the body.

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The compound reduced the migration of melanoma cells by 85 to 90 per cent. The team also discovered that the potential drug greatly reduced tumors specifically in the lungs of mice that had been injected with human melanoma cells.

“We used intact melanoma cells to screen for our chemical inhibitors. This allowed us to find compounds that could block anywhere along this RhoC pathway,” Neubig said.

Being able to block along this entire path allowed the researchers to find the MRTF signaling protein as a new target. Appleton said figuring out which patients have this pathway turned on is an important next step in the development of their compound because it would help them determine which patients would benefit the most.

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