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甲状腺癌中甲状腺特异性转录因子 |
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en肉瘤病毒的FRTL-5细胞,不具备分化能力的甲状腺细胞也不含TTF-1〔7〕,提示由k-ras诱导的去分化过程中可有TTF-1活性的丧失。这些研究表明:TTF-1对于甲状腺特异性基因的表达,甲状腺细胞的分化及功能维持起着重要作用。本文结果表明:人甲状腺肿瘤组织存在TTF-1基因突变。我们推测:转录水平调控基因这一结构异常可能导致其调控的甲状腺特异性基因TG、TPO、TSHR mRNA的表达异常。
作者单位:林玲 362000 福建泉州,福建医科大学附属二院内科; 大野诚、远藤登代志、女屋敏正 日本山梨医科大学第三内科(409-38日本山梨)
参考文献
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