For instance, in oral lichen planus (OLP), mRNA encoding immunomodulatory proteins such as interleukin-10 (IL-10) and transforming growth factor-beta (TGF-β) could help regulate the T-cell-mediated immune response, reducing inflammation in OLP, while mRNA encoding growth factors like epidermal growth factor (EGF) and fibroblast growth factor (FGF) could stimulate cell proliferation and tissue repair in the damaged oral mucosa [27]. This evidence concerns the gene IL10 and oral lichen planus.