Cell-mediated immune response to basal cell carcinoma

Abstract
The role of cell-mediated immunity in controlling Basal Cell Carcinoma (BCC) growth was studied by measuring the transformation of lymphocytes when challenged in vitro with aqueous extracts of the patients´ BCCs and of control skin. Tests were carried out in the presence of autologous and heat-treated plasma. Three patients out of 8 showed significantly raised thymidine uptake ratio (TUR). Heat-treated plasma produced higher TURs, indicating the presence of an inhibitory factor.