Abnormal lymphocyte response to u.v. radiation in multiple skin cancer

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Abstract
The lymphocyte response to u.v. radiation (254 nm) was investigated by two different methods in 29 unselected patients with multiple epidermal cancer. The u.v.-induced DNA synthesis was determined as the increase in incorporation of [ 3 H]thymidine in irradiated cells compared with nonirradiated cells after incubation for 2 h. The u.v. tolerance was measured as the u.v. dose necessary for 50% reduction in phytohemagglutinin-stimulated lymphocyte proliferation. Patients with both squamous cell differentiated tumors and basal cell carcinomas had very high u.v.-induced DNA synthesis values ( p p p p = 0.05, when compared with the remaining patients). These investigations may be of predictive value in skin carcinogenesis.

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