Abstract
Gastric cancer (GC) is a serious threat to the health and lives of people around the world. In China, the incidence and mortality of gastric cancer are much higher than the world average, coupled with its low early diagnosis rate, low survival rate, poor prognosis, and complex etiology, especially the serious lack of effective early warning methods, which has become the main constraint on the diagnosis and treatment of gastric cancer factor. Therefore, finding reliable, effective, and specific markers that can be applied to early warning and diagnosis of gastric cancer has been a hot issue in gastric cancer research. Magnetic nanoparticles are an ideal molecular carrier for gene separation because they have many advantages such as easy operation, fast, high efficiency, and non-destructive non-recognition biological entities. Changes in gene levels can detect the development of early diagnosis and treatment of prognosis in patients with gastric cancer by affecting susceptibility, clinical phenotype, and drug response. PcG protein can modify chromatin and affect tumorigenesis. The experimental results show that the introduction of magnetic nanoparticles can improve the sensing signal, detection sensitivity and gene differentiation. Combined with the latest magnetic nanoparticle technology to analyze the relationship between SNPs of some genes in the pathways involved in gastric cancer treatment and DNA specificity, screening and identifying specific SNP markers are helpful to the mechanism of gastric cancer development. Understand to achieve the purpose of individualized treatment. By introducing the RAS-BRAF gene on the surface of magnetic nanoparticles, the surface of the magnetic particles was biologically functionalized and used for the separation and detection of proteins and pathogens, respectively. The results show that the system has excellent detection sensitivity and separation selectivity. At present, the research results of susceptible genes screened by coding gene association studies are inconsistent. In this study, PLCE1 gene was found to be used as a DNA gene identification method through high expression of cells to analyze that polymorphisms are closely related to the incidence of gastric cancer. In addition, the study suggests that PLCE1 gene may be a susceptible gene for tumor cells. The signaling pathways involved in the regulation play an important role in tumorigenesis, development, migration, and apoptosis, and are closely related to disease prognosis. Therefore, at the gene level More analysis of the role of these genes in gastric cancer is needed.
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