A human primary liver carcinoma cell line has been established in vitro in 1981, which was designated as YY-8103. Specimen of the primary liver carcinoma was obtained from a 60-year old male patient at operation. This cell line has been transferred through more than 130 passages.The characteristics of the cell line are as follows: Morphologically, the cells are polygonal epithelial-like. The nuclei are large in size and irregular in shape, and mitosis can be seen under EM. The mode of chromsome numbers of t...