中文摘要：

白介素17是由Th17细胞分泌的炎症细胞因子，在机体炎症及免疫性疾病中发挥重要作用。皮肤自身免疫性疾病的发病机制尚不清楚。IL-17的炎性和免疫性双重特征，有望在皮肤自身免疫性疾病的研究中取得突破。进一步研究IL-17在皮肤自身免疫性疾病中的作用，探讨其发病机制，可有效寻找新的药物作用靶点和新的治疗方法。

英文摘要：

The nature of cutaneous autoimmune diseases is still unclear, and at present no specific or effective drug has been found for their treatment. Interleukin-17 （IL-17） belongs to IL-17 pro-inflammatory cytokine family and is secreted by Th17 cells. It plays an important role in inflammatory and autoimmune diseases and is expected to bring a breakthrough in the research of skin autoimmune diseases. Further studies on the role of IL-17 in autoimmune diseases will favor the understanding about their pathogenesis, as well as the search for new treatment targets and approaches to these diseases.