Figure 1.

Human uterine epithelial cells present antigen to autologous T cells. A highly purified suspension of irradiated endometrial uterine epithelial cells (EC) and purified T cells from a premenopausal (proliferative phase) patient were incubated alone or in combination and with or without (control) 10 mg/ml of tetanus toxoid for 5 days. Cultures were pulsed during the final 8 hours of culture with ³H-thymidine. Alone, neither T nor epithelial cells proliferated; however, when T and epithelial cells were combined they proliferated in the presence of tetanus toxoid. **Significantly greater than the control, P < 0.001. [101]