The effect of Helicobacter pylori on the expression of FRA-1 in gastric epithelial cells and its mechanism

Microbial Pathogenesis
Yang YangShihe Shao

Abstract

Gastric cancer is a major global health threat and is often related with Helicobacter pylori (H. pylori) infection. FRA-1 is a subunit of the activator protein-1 transcription factor complex, which played a central role in cell proliferation and migration. It has also been implicated in stomach inflammation and malignancy. The present study aimed to clarify the relationship between H. pylori infection and production of FRA-1 in controlling cell proliferation and migration and its molecular mechanisms. Cell proliferation was measured by colony formation assay. Cell migration was monitored by transwell migration assay. Gastric mucosal epithelial cells were treated with FRA-1-specific siRNA with or without H. pylori infection in vitro, and RNA and proteins were extracted. The expression of FRA-1 and indicators in cells was determined by RT-PCR and western blot analysis. β-Catenin and TGF-β activities were then assessed by western blotting and immunofluorescence. The expression of FRA-1 increased after H. pylori infection. Additional analysis identified that knockdown of FRA-1 attenuated the H. pylori-induced proliferative activity and migration of gastric cancer cells. Furthermore, upregulation of FRA-1 by H. pylori led to increas...Continue Reading

Citations

Oct 16, 2019·Molecular Biology Reports·Xiaoyan JiangSongshu Xiao
Jan 4, 2021·Molecular Biology Reports·Yang YangChenglin Zhou
Dec 5, 2020·Critical Reviews in Oncology/hematology·Xiangxuan ZhaoZaiming Lu

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