Gene expression profiles in normal human prostate epithelial cells exposed to low-dose cadmium: A bioinformatics analysis.
- Author:
Ya-Shou GUO
1
;
Xiao-Feng XU
1
;
Nan LI
1
;
Na SUN
2
;
Li-Fang DUAN
3
Author Information
1. Department of Urology, Xianyang Central Hospital, Xianyang, Shaanxi 712000, China.
2. Department of Epidemiology and Health Statistics, College of Public Health, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, China.
3. Department of Pathophysiology, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, China.
- Publication Type:Journal Article
- Keywords:
bioinformatics;
gene expression;
prostate cancer;
prostate epithelial cell;
cadmium, low-dose
- From:
National Journal of Andrology
2019;25(2):103-109
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the biological network regulation and key proteins of gene expression microarray in human normal prostate epithelial cells after treated with low-dose cadmium, and provide some new theoretical evidence for the pathogenesis of cadmium-related prostate cancer.
METHODS:We downloaded 19 copies of gene chip data from the Gene Expression Omnibus (GEO), involving 9 samples of prostate epithelial cells exposed to low-dose cadmium and 10 cases of normal control. Using the Gene-Cloud of Biotechnology Informs platform, GenClip2.0 and Sytoscape 3.5.1, we screened differentially expressed genes, explored their protein interaction networks and biological pathways and, from the perspective of transcriptome, analyzed the changes in the genetic network of normal human prostate epithelial cells and their possible molecular biological functions after low-dose cadmium treatment.
RESULTS:Totally, 1 050 (1.92%) differentially expressed genes were found in the prostate epithelial cells treated with low-dose cadmium, involved in such biological functions as the cell physiological process, MAPK regulation, regulation of intracellular signal transduction, and immunological effect. The HSP90AB1, BUB3 and PRKAR1A genes were the core nodes of the protein network, which showed statistically significant differences in their expressions and a correlation with the malignant transformation of normal cells.
CONCLUSIONS:Low-dose cadmium can cause genetic changes in normal human prostate epithelial cells and the differentially expressed genes are mainly involved in such biological functions as the cell physiological process, MAPK regulation, regulation of intracellular signal transduction, and immunological effect.
