Center for Cancer Prevention Research, Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, Piscataway, NJ 08854, USA.
Cancer Prev Res (Phila). 2013 Jul;6(7):622-4. doi: 10.1158/1940-6207.CAPR-13-0202. Epub 2013 Jun 17.
In cancer, genetic mutations have long been considered to be the only driver of neoplasia. However, there is increasing evidence that epigenetic alterations could also play a major role in carcinogenesis and cancer. A number of experimental and epidemiologic studies have shown that many classes of dietary phytochemicals possess cancer-preventive and epigenetic-modifying properties. The report by Derry and colleagues in this issue of the journal shows that grape seed extract (GSE) prevents azoxymethane (AOM)-induced colon colitis via epigenetic microRNA (miRNA) regulation. Although the precise mechanism underlying the control of miRNA expression is not well understood currently, epigenetic changes could play a major role. This report, along with increasing evidence showing the impact of dietary phytochemicals on epigenetic activities, offers new perspectives on miRNA and epigenetic regulation in cancer prevention.
在癌症中,基因突变长期以来一直被认为是肿瘤发生的唯一驱动因素。然而,越来越多的证据表明,表观遗传改变也可能在癌症发生和发展中发挥重要作用。许多实验和流行病学研究表明,许多类别的膳食植物化学物质具有预防癌症和表观遗传修饰的特性。Derry 及其同事在本期杂志上的报告表明,葡萄籽提取物(GSE)通过表观遗传 microRNA(miRNA)调控预防氧化偶氮甲烷(AOM)诱导的结肠结肠炎。尽管目前对 miRNA 表达调控的精确机制尚不完全清楚,但表观遗传变化可能起主要作用。这一报告以及越来越多的证据表明膳食植物化学物质对表观遗传活性的影响,为 miRNA 和癌症预防中的表观遗传调控提供了新的视角。