What role does FTO play in Haut?

The role of FTO in the skin is not yet clearly established in the scientific literature. FTO (Fat Mass and Obesity-associated) encodes an RNA demethylase primarily linked to obesity and energy homeostasis. However, emerging research suggests that FTO is also expressed in skin and may be involved in processes such as inflammation regulation, wound healing, and melanoma development. For instance, increased FTO expression has been observed in melanoma cells, and some studies propose that FTO variants could influence skin cancer risk. However, the evidence is largely mechanistic, coming from cell culture and animal models; large-scale human studies are lacking. Moreover, the effects of individual FTO variants on skin health are typically small and overshadowed by environmental factors like UV exposure. Therefore, a genetic test for FTO variants cannot provide clinically useful information about individual skin cancer risk or skin aging. For skin health, established measures such as sun protection, regular skin checks, and a healthy lifestyle are far more relevant. The evidence for a direct role of FTO in skin is currently mechanistic/insufficient.