We showed here that axudl mrna expression was elevated by tgf - 1 treatment in a time and dose - dependent manner in hepg2 hepatoma cells and spc - a1 lung carcinomas cells , and also indicated that de novo protein synthesis was required for this response using the protein synthesis inhibitor cycloheximide , suggesting that axudl is a primary target of tgf - signalling 在hepg2和spc - a1细胞中, tgf - 1能明显诱导这两种细胞中的axud1基因的表达,而且表现出时间和浓度的依赖效应。同时,利用第一军医大学博士学位论文蛋白质合成的特异抑制剂还发现, tgf一pl诱导的axudl基因的表达过程需要新的蛋白质的合成,提示axudl基因是tgf一p信号通路的一个主要靶分子。