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Methylation profiling of lung cancer: a decade of progress.

机译:肺癌的甲基化分析:十年的进展。

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The term epigenetics refers to heritable changes in gene expression that occur without changes in the DNA sequence. Epigenetic regulation includes DNA methyla-tion and covalent histone modifications. Although both mechanisms play crucial roles in carcinogenesis, methyl-ation is more widely studied because it is less complex and easier to document. In human malignancies, whereas global DNA hypomethylation occurs, selective DNA hypermethylation occurs in the promoter regions of crucial tumor suppressor genes to downregulate their functions. Ten years ago, in the first volume of Molecular Cancer Therapeutics, we published a methylation profile of lung cancers, comparing and contrasting the various types, including non-small cell adenocarcinomas and squamous cell carcinomas, and the neuroendocrine tumors small-cell lung cancers and bronchial carcinoids.
机译:术语表观遗传学是指基因表达的可遗传改变,其发生而DNA序列没有改变。表观遗传调控包括DNA甲基化和共价组蛋白修饰。尽管这两种机制在致癌作用中都起着至关重要的作用,但是由于甲基化的复杂性较低且易于记录,因此对其进行了更广泛的研究。在人类恶性肿瘤中,发生总体DNA低甲基化,而选择性DNA高甲基化发生在关键肿瘤抑制基因的启动子区域,以下调其功能。十年前,在《分子癌症治疗学》的第一卷中,我们发表了肺癌的甲基化概况,比较并对比了各种类型,包括非小细胞腺癌和鳞状细胞癌,以及神经内分泌肿瘤小细胞肺癌和支气管类癌。

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