Molecular events in gastric carcinogenesis
نویسندگان
چکیده
Gastric cancer represents an important problem for the public health, being one of the main causes of mortality. At present, it represents the second cause of mortality due to cancer, after the bronchopulmonary cancer in men and the fourth cause of mortality in women. Important progresses have been made in the last couple of years in determining the neoplastic etiopathogenesis, but it cannot be affirmed that the genetic mutations chain, which leads to the appearance of the malignant cell, has been fully understood.
منابع مشابه
Performance of methylation and expression fluctuations of sonic hedgehog genes in gastric adenocarcinoma
Gastric cancer (GC) is considered as one of the most serious cancers, and in Iran, due to environmental factors in different regions, it has a high frequency. Apart from environmental factors, genetic and epigenetic ones also play a key role in the development of carcinogenesis of GC. In this regard, the study of functioning of the molecular mechanisms involved in the carcinogenesis and also tu...
متن کاملEpigenetic alterations in gastric cancer (Review)
Gastric cancer is one of the most common types of cancer and the second most common cause of cancer-related mortality worldwide. An increasing number of recent studies have confirmed that gastric cancer is a multistage pathological state that arises from environmental factors; dietary factors in particulary are considered to play an important role in the etiology of gastric cancer. Improper die...
متن کاملAssociation of the -160 C>A Polymorphism in the CDH1 Promoter with Gastric Cancer: A Case-control Study
E-cadherin is a tumor suppressor protein that plays a crucial role in cell-cell adherens junction and tissue architecture and it is hypothesized to participate in carcinogenesis. It has been shown that a polymorphism in the upstream of the transcription start site of the CDH1 gene affects E-cadherin transcriptional regulation and seems to be associated with a variety of cancers. For the first t...
متن کاملMolecular Signaling in Tumorigenesis of Gastric Cancer
Gastric cancer (GC) is regarded as the fifth most common cancer and the third cause of cancer-related deaths worldwide. Mechanism of GC pathogenesis is still unclear and relies on multiple factors, including environmental and genetic characteristics. One of the most important environmental factors of GC occurrence is infection with Helicobacter pylori that is classified as class one carcinogens...
متن کاملThe Impression of Histone Modification and DNA Methylation in Gastric Cancer Development: Molecular Mechanism Approach
The epigenetic alterations like histone modifications , DNA methylation and others remarkable categories including nucleosome remodeling and RNA mediated targeting have been strongly investigated recently .In this way , beside the notable importance of DNA methylation ,the histone modifications are the most important issues in the tumorogenesis and cancer progression. Moreover...
متن کاملAnalyses of methylation status of CpG islands in promoters of miR-9 genes family in human gastric adenocarcinoma
In the recent years deregulation for microRNAs expression pattern have emerged as a possible molecular factor for carcinogenesis. It has been reported that the expression of miR-9 was down-regulated in human gastric adenocarcinoma. To figure out the molecular mechanism of this down regulation, the methylation status in promoters of miR-9 family loci were compared in the human gastric adenocarci...
متن کامل