MUC1 and neoplasm: Moreover, as shown in Fig. 5a and b (both lower panels), MTC-22 cells were CK7-positive, CK20-negative, vimentin-positive, EMA-positive, CA125-positive, R-10G-positive, 294-1B1-positive and 5D4-negative—patterns also identical to those seen in the patient’s tumour tissue (corresponding upper panels in Fig. 5a and b).