Cellular rivalry promotes healthy skin development

Not all cells are destined for greatness. Deemed unfit to serve in the body, some are killed off during early development through a process called cell competition. This phenomenon has previously been documented in flies ...

Beaches are banning sunscreens to save coral reefs

Many families will soon escape the winter to seek warmer, sunnier climes. Swimsuits and sunglasses will invariably find their way into suitcases, but one common item might be giving people a little more pause than it once ...

Explainer: How computers "see" faces and other objects

Computers started to be able to recognize human faces in images decades ago, but now artificial intelligence systems are rivaling people's ability to classify objects in photos and videos.

Ribosomes found to induce somatic cell pluripotency

In 2012, a Japanese research group discovered that human skin cells acquire pluripotency when introduced to lactic acid bacteria (Lactobacillus acidophilus). Now, the same group of researchers has found that the cause of ...

DNA damage repair—molecular insights

The first line of defense against skin cancer is the ability to repair DNA damage caused by UV light. The XPA protein plays an important role in the repair of certain DNA damage, and mutations in this protein have been implicated ...

Grads receive James Dyson Award for cancer detection device

What started as a final year engineering class project at McMaster University is now an internationally recognized improved solution for the early detection of melanoma, the most dangerous form of skin cancer.

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Skin cancer

Skin cancer is a malignant growth on the skin which can have many causes. The most common skin cancers are basal cell cancer, squamous cell cancer, and melanoma. Skin cancer generally develops in the epidermis (the outermost layer of skin), so a tumor is usually clearly visible. This makes most skin cancers detectable in the early stages. There are three common and likely types of skin cancer, each of which is named after the type of skin cell from which it arises. Unlike many other cancers, including those originating in the lung, pancreas, and stomach, only a small minority of those afflicted will actually die of the disease. Skin cancer represents the most commonly diagnosed cancer, surpassing lung, breast, colorectal and prostate cancer. Melanoma is less common than basal cell carcinoma and squamous cell carcinoma, but it is the most serious—for example, in the UK there are 9,500 new cases of melanoma each year, and 2,300 deaths. More people now die of melanoma in the UK than in Australia. It is the most common cancer in the young population (20 – 39 age group). It is estimated that approximately 85% of cases are caused by too much sun.[citation needed] Non-melanoma skin cancers are the most common skin cancers. The majority of these are called basal cell carcinomas. These are usually localised growths caused by excessive cumulative exposure to the sun and do not tend to spread.

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