Medical research

Study overturns 'snapshot' model of cell cycle in use since 1974

Cells have a big decision: Should they replicate or sleep? Healthy cells can go either way. Cancer cells' replication switches are stuck in the 'on' position. Now a study by University of Colorado Cancer Center researchers ...

Oncology & Cancer

Bereaved individuals may face higher risk of dying from melanoma

Individuals who experience the loss of a partner are less likely to be diagnosed with melanoma but face an increased risk of dying from the disease, according to research published in the British Journal of Dermatology.

Oncology & Cancer

Melanoma is killing fewest Americans in decades

Advances in treatment have led to the largest yearly declines in deaths due to melanoma ever recorded for this skin cancer, results of a new study suggest.

Oncology & Cancer

Stopping cancer in its tracks

It vaguely resembles a wave under the microscope, the cell's edge crashing and tumbling as it advances across the slide. But despite appearances, how cells move is a precise and tightly controlled process, involving a dynamic ...

Medical research

'Natural killer' cells could halt Parkinson's progression

Researchers at the University of Georgia's Regenerative Bioscience Center and their colleagues have found that "natural killer" white blood cells could guard against the cascade of cellular changes that lead to Parkinson's ...

Oncology & Cancer

Cancer: The immune system attacks tumors remotely

How does the immune system act to limit tumor development? Using in vivo imaging tools, scientists from the Institut Pasteur and Inserm described the spatiotemporal activity of tumor-infiltrating T lymphocytes, both locally ...

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Melanoma i/ˌmɛləˈnoʊmə/ (from Greek μέλας - melas, "dark") is a malignant tumor of melanocytes. Melanocytes are cells that produce the dark pigment, melanin, which is responsible for the color of skin. They predominantly occur in skin, but are also found in other parts of the body, including the bowel and the eye (see uveal melanoma). Melanoma can occur in any part of the body that contains melanocytes.

Melanoma is less common than other skin cancers. However, it is much more dangerous and causes the majority (75%) of deaths related to skin cancer. Worldwide, doctors diagnose about 160,000 new cases of melanoma yearly. The diagnosis is more frequent in women than in men and is particularly common among Caucasians living in sunny climates, with high rates of incidence in Australia, New Zealand, North America, Latin America, and northern Europe. According to a WHO report, about 48,000 melanoma related deaths occur worldwide per year.

The treatment includes surgical removal of the tumor, adjuvant treatment, chemo- and immunotherapy, or radiation therapy. The chance of a cure is greatest when the tumor is discovered while it is still small and thin, and can be entirely removed surgically.

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