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针对病种:结肠癌

发表时间:2011年7月

发表国家:美国

登载刊物:表观遗传学

研究单位:美国伊利诺伊大学厄巴纳-香槟分校部食品科学和人类营养学院

研究人员:李倩和陈宏

主要结论:在 CRC 转移时,通过表观遗传修饰调控转移抑制因子,尤其是 DNA 甲基化和组蛋白修饰。此外还讨论了用染料木素抑制CRC 转移的表观遗传机制的最新研究进展.

Epigenetics, 2011, 6(7):849-852.

Epigenetic modifications of metastasis suppressor genes in colon cancer metastasis

Qian Li and Hong Chen

Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, USA

Colon and rectal cancer (colorectal cancer, CRC) is the third most common cancer worldwide. Deaths from CRC account for around 8% of all cancer deaths, making it the fourth most common cause of death from cancer. The high mortality rate of colon cancer is mainly attributable to its metastasis. Efforts have been made to identify metastasis suppressor genes, which encode proteins responsible for inhibiting the metastasis but not suppressing the growth of primary tumors. Studies on metastasis suppressor genes demonstrated that epigenetic modifications, such as DNA promoter methylation and histone modification, play crucial roles in regulating the expression of many metastasis suppressor genes, which indicates the association between aberrant epigenetic alterations and cancer metastasis. This review will focus on the recent findings regarding metastasis suppressors regulated by epigenetic modifications, particularly DNA methylation and histone modification, in CRC metastasis. Also discussed will be recent progress on the suppression of CRC metastasis by genistein, a soy isoflavone, with a focus on epigenetic mechanisms.


美国《表观遗传学》,
20117

在结肠癌转移瘤中肿瘤转移抑制基因的表观遗传修饰

李倩和陈宏

美国伊利诺伊大学厄巴纳-香槟分校部食品科学和人类营养学院

结肠和直肠癌 (大肠癌,CRC 是全球第三最常见的癌症。CRC 的死亡率占所有癌症死亡的 8%左右,使之成为死于癌症最常见原因的第四名。结肠癌死亡率高主要原因在于转移。努力确定肿瘤转移的抑制基因,其编码的蛋白质可以抑制转移但是不能抑制原发性肿瘤的生长。肿瘤转移抑制基因的研究表明,表观遗传修饰,例如 DNA 启动子甲基化和组蛋白修饰,在调控许多肿瘤转移抑制基因的表达时发挥了关键作用,这表明异常的表观遗传变化与肿瘤转移之间的关联。本综述将重点放在最近的调查结果:在 CRC 转移时,通过表观遗传修饰调控转移抑制因子,尤其是 DNA 甲基化和组蛋白修饰。此外还讨论了用染料木素抑制CRC 转移的表观遗传机制的最新研究进展。
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