Conclusion Psoriatic T lymphocytes have been activated in peripheral blood and the activation are obviously different from normal T cells activated with SAg.

• 结论 银屑病患者T细胞在外周血已处于活化状态，其活性与链球菌超抗原多克隆激活的正常人T细胞在功能上有本质区别，这一特殊的活性，可能在诱导表皮动力学紊乱及银屑病发病中发挥重要的作用。