Psoriasis is a chronic skin inflammatory disease with chronic autoimmunity.Drug resistance occurred in its therapeutic process is resemble to the drug fast of tumor cell in tumor chems.

• 银屑病是一种自身免疫性慢性炎症性皮肤病,其治疗过程中产生的对药物的耐受性与肿瘤化疗中肿瘤细胞耐药现象相似。