Natural and Chang liver cell cytotoxic studies of methotrexate-treated psoriatic patients with liver cirrhosis.

Forty patients with psoriasis were investigated for unspecific and specific lymphocyte cytotoxicity in order to evaluate the significance for liver cell damage in methotrexate-treated (MTX) patients. We found no difference between psoriasis patients with regard to cytotoxicity. We also observed a normal proliferation of lymphocytes after stimulation with tuberculin and phytohemagglutinin.