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血清转化生长因子（TGFα）是从镶嵌在细胞膜上的大分子前体分离出来的一含50个氨基酸的多肽。TGFα的表达最常见于肿瘤细胞系。在各种恶性细胞中刺激DNα合成。报刘TGFα以自分泌的方式起致癌或促癌的作用，其血清和尿浓度的增高反映了上述记录。尽管TGFα在体内外肝细胞癌（H
Serum transforming growth factor (TGFα) is a 50 amino acid polypeptide isolated from macromolecular precursors embedded in cell membranes. The expression of TGFα is most common in tumor cell lines. Stimulates DNα synthesis in various malignant cells. Reported that Liu TGFα acts as an oncogenic or cancer-promoting agent in an autocrine manner. The increase in serum and urine concentrations reflects the above records. Although TGFα is in vitro and in vivo, hepatocellular carcinoma (H