Vahidi Sogand, Mirzajani Ebrahim, Norollahi Seyedeh Elham, Aziminezhad Mohsen, Samadani Ali Akbar
Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.
Department of Biochemistry, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.
J Pharmacopuncture. 2022 Jun 30;25(2):88-100. doi: 10.3831/KPI.2022.25.2.88.
Gastric cancer (GC) is a significant cause of cancer mortality which has led to focused exploration of the pathology of GC. The advent of genome-wide analysis methods has made it possible to uncover genetic and epigenetic fluctuation such as abnormal DNA methylation in gene promoter regions that is expected to play a key role in GC. The study of gastric malignancies requires an etiological perspective, and () was identified to play a role in GC. infection causes chronic inflammation of the gastric epithelium causing abnormal polyclonal methylation, which might raise the risk of GC. In the last two decades, various pathogenic factors by which infection causes GC have been discovered. Abnormal DNA methylation is triggered in several genes, rendering them inactive. In GC, methylation patterns are linked to certain subtypes including microsatellite instability. Multiple cancer-related processes are more usually changed by abnormal DNA methylation than through mutations, according to current general and combined investigations. Furthermore, the amount of acquired abnormal DNA methylation is heavily linked to the chances of developing GC. Therefore, we investigated abnormal DNA methylation in GC and the link between methylation and infection.
胃癌(GC)是导致癌症死亡的一个重要原因,这促使人们对胃癌的病理学进行深入研究。全基因组分析方法的出现使得发现基因和表观遗传波动成为可能,例如基因启动子区域的异常DNA甲基化,预计其在胃癌中起关键作用。对胃恶性肿瘤的研究需要从病因学角度出发,并且()被确定在胃癌中发挥作用。()感染会导致胃上皮慢性炎症,引起异常多克隆甲基化,这可能会增加患胃癌的风险。在过去二十年中,已经发现了()感染导致胃癌的各种致病因素。多个基因中会引发异常DNA甲基化,使其失活。在胃癌中,甲基化模式与某些亚型有关,包括微卫星不稳定性。根据目前的综合研究,与癌症相关的多个过程通常更多地是由异常DNA甲基化改变,而非通过突变。此外,获得性异常DNA甲基化的程度与患胃癌的几率密切相关。因此,我们研究了胃癌中的异常DNA甲基化以及甲基化与()感染之间的联系。