Effect of PUVA treatment on the locomotion of polymorphonuclear leukocytes and mononuclear cells in psoriasis.

Polymorphonuclear leukocyte (PMN) and mononuclear cell (MNC) locomotion was investigated in patients with psoriasis vulgaris before and after treatment with oral photochemotherapy (PUVA) and was found to be significantly increased (PMN: p < 0.001; MNC: p < 0.002) when compared to healthy controls. No significant difference was observed in the locomotion of PMN or MNC before and after PUVA treatment. These results indicate that PMN and MNC locomotion is increased in psoriasis vulgaris and remains unaltered by PUVA treatment.