Objective To study the effects of ultraviolet-A(UVA) irradiation on mice epidermal Langerhans cells(LC).

目的研究体外长波紫外线（UVA）对小鼠表皮朗格汉斯细胞（LC）生物学活性的影响。

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Objective: To observe the dynamic changes in the density and morphology of Langerhans cells (LC) and dendritic epidermal t cells (DETC) in murine inter-follicular epidermis during hair follicle cycle.

目的：观察拔毛诱导的小鼠毛发周期中毛囊间表皮lc及DETC的密度及形态变化，探讨二者与毛囊周期的关系。

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