Eczema may reduce skin cancer risk

By JoanneRUSSELL25

Eczema is one of the most common skin conditions, affecting up to 30% of people in the US. Symptoms include dry, itchy skin and rashes. But according to new research, having eczema may not be all that bad; it could reduce the risk of skin cancer.

In a study published in the journal eLife, researchers from Kings College London in the UK say that eczema, also known as atopic dermatitis, activates an immune response that sheds potentially cancerous cells from the skin, preventing tumor formation.

According to the research team, including Prof. Fiona Watt of the Centre for Stem Cells and Regenerative Medicine at Kings College, previous studies have suggested that eczema may reduce the risk of skin cancer.

However, they note that this association has proven difficult to confirm in human studies, as medication for eczema may influence cancer risk. Furthermore, symptoms of the condition vary in severity in each individual.

Eczema reduced tumor formation in mice models

For their study, the team genetically engineered mice to have skin defects commonly found in humans with eczema.

They did this by removing structural proteins in the outer layers of their skin, causing them to have an abnormal skin barrier.

The researchers then tested two cancer-causing chemicals in the genetically engineered mice, as well as in normal mice.

They found that the number of benign tumors in defected mice was six times lower than the number found in the normal mice.

Further investigation revealed that although both the defected and normal mice had equal susceptibility to mutations caused by the chemicals, the defected mice had an exaggerated inflammatory response that resulted in potentially cancerous cells being shed from the skin.

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Eczema may reduce skin cancer risk

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categoriaSkin Stem Cells commentoComments Off on Eczema may reduce skin cancer risk | dataMay 10th, 2014

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