Vitamin B3 therapy may help prevent skin cancer

A vitamin therapy using a form of vitamin B3 may have the potential for preventing melanoma in high-risk individuals, a new review has suggested. Niacinamide (nicotinamide) is a form of vitamin B3 (niacin) and is used to prevent and treat niacin deficiency (pellagra).  Niacin deficiency can cause diarrhoea, dementia, tongue redness/swelling, and peeling red skin. The findings showed that nicotinamide can help reduce or reverse DNA damage, inflammation, and immunosuppression caused by ultraviolet radiation. Ultraviolet radiation as we know if one of the main causes of skin cancer. “Nicotinamide has been shown in a clinical trial — to reduce the incidence of non-melanoma skin cancer in high-risk individuals,” said a scientist.

Ultraviolet radiation causes DNA damage in melanocytes — melanin-forming cell, especially in the skin, and leads to the production of reactive oxygen species.  These species induce inflammatory cytokines that, together with the inherent immunosuppressive properties of the ultraviolet radiation, propagates the initiation of cancer formation. “As nicotinamide reduces the incidence of actinic keratoses and nonmelanoma skin cancers in high-risk individuals and enhances repair of DNA damage in melanocytes, it is a promising agent for the chemoprevention of melanoma in high-risk populations,” Halliday said. Further, “it would be worthwhile to determine whether nicotinamide would also be useful for high-risk melanoma patients”, scientist added. 

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