<p> Interleukins (IL) are a group of cytokines that play an important role in the immune system. They modulate inflammation and immunity by regulating growth, mobility and differentiation of lymphoid and other cells. </p> <p> Interleukin-24 (IL-24, also known as melanoma differentiation-associated gene-7) belongs to the family of IL-10-related cytokines, which includes IL-10, -19, -20, -22, -24 and -26 [<cite idref="PUB00046044"/>]. It has been proposed, based on the expression pattern of IL-24 and its receptors, that the cytokine may play a role in epidermal functions, such as wound healing [<cite idref="PUB00046070"/>]. IL-24 has also been shown to possess cancer-specific apoptosis-inducing activity, and has therefore been suggested as a potential anti-cancer agent [<cite idref="PUB00046071"/>]. </p> Interleukin-24