Gene expression and DNA methylation regulation of arsenic in mouse bladder tissues and in human urothelial cells.

Gene expression and DNA methylation regulation of arsenic in mouse bladder tissues and in human urothelial cells. Oncol Rep. 2019 Jul 16;: Authors: Jou YC, Wang SC, Dai YC, Chen SY, Shen CH, Lee YR, Chen LC, Liu YW Abstract According to a report of the International Agency for Research on Cancer, arsenic and inorganic arsenic compounds are classified into Group 1 carcinogens with regard to human health. Epidemiological studies indicate that arsenic is one of the main risk factors for the development of bladder cancer. In the present study, arsenic‑altered gene expression in mouse bladder tissues and in human urothelial cells was compared. In the mouse model, sodium arsenite‑induced mouse urothelial hyperplasia and intracellular inclusions were present. Following DNA array analysis, four genes with differential expression were selected for quantitative real‑time PCR assay. The genes were the following: Cystathionine β‑synthase (CBS), adenosine A1 receptor (ADORA1), metastasis‑associated lung adenocarcinoma transcript 1 (MALAT1) and Wnt inhibitory factor 1 (Wif1). The results indicated a significant increase in the levels of Cbs and Adora1. The analysis of the DNA CpG methylation levels of the mouse Cbs and Adora1 genes revealed no significant change. In contrast to these observations, the four genes were further analyzed in the human normal urothelial cell line SV‑HUC1. The data indicated that WIF1 gene expression was d...
Source: Oncology Reports - Category: Cancer & Oncology Tags: Oncol Rep Source Type: research