New target plus new drug equals death of melanoma cells

April 9, 2013

Collaborative research presented by the University of Colorado Cancer Center, the University of North Carolina at Chapel Hill, Harvard Medical School and the University of Pittsburgh, at the American Association for Cancer Research (AACR) Annual Conference, shows that the protein receptor Mer is overexpressed in melanoma and that the investigational drug UNC1062 blocks Mer survival signaling in these cells, killing them.

"It's exciting in that Mer correlates so perfectly with disease progression. It's tiered – you see a bump in expression as you transition from nevus to melanoma and then again as you transition from melanoma to metastatic disease," says Doug Graham, MD, PhD, investigator at the CU Cancer Center and associate professor of Pediatrics and Immunology at the University of Colorado School of Medicine, the paper's senior author.

After proving this correlation between Mer receptor expression and disease stage in melanoma tissues from clinical patient samples, Graham and colleagues wondered what would happen if they interrupted this Mer signaling. Luckily, the University of North Carolina had recently developed a new compound that did just that – UNC1062. The results were dramatic.

"We showed decreased survival signaling, increased apoptosis and decreased growth of the in dishes and in mouse models," Graham says. It seems that Mer receptors are not only correlated with melanoma progression but are in fact driving the aggressiveness of the disease.

"This is the first time there's been an association between Mer and melanoma and the first time to report about this new drug," Graham says.

Related Stories

Study identifies human melanoma stem cells

August 23, 2012

(Medical Xpress)—Cancer stem cells are defined by three abilities: differentiation, self-renewal and their ability to seed a tumor. These stem cells resist chemotherapy and many researchers posit their role in relapse. ...

Recommended for you

New treatment options for a fatal leukemia

July 27, 2015

In industrialized countries like in Europe, acute lymphoblastic leukemia is the most common form of cancer in children. An international research consortium lead by pediatric oncologists from the Universities of Zurich and ...

Modified DNA building blocks are cancer's Achilles heel

July 22, 2015

In studying how cells recycle the building blocks of DNA, Ludwig Cancer Research scientists have discovered a potential therapeutic strategy for cancer. They found that normal cells have highly selective mechanisms to ensure ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.