期刊
GENE
卷 724, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.gene.2019.144156
关键词
Cadmium; Nephrotoxicity; Biomarkers; miR-122-5p; miR-326-3p
资金
- National Natural Science Foundation of China [81671860]
- Natural Science Foundation of Guangdong Province [2018A030313217]
Cadmium is a common environmental and occupational pollutant and can produce toxic effects in a range of organs, especially in kidneys, after long-term exposure. MicroRNAs are ideal candidate biomarkers for various types of disorders, including renal diseases. In this study, we profiled the global miRNA expressions in rat kidneys using miRNA microarrays and found a collection of differentially expressed miRNAs induced by cadmium exposure. Among all of the candidate miRNAs, we identified miR-122-5p and miR-326-3p as early biomarkers for cadmium-induced nephrotoxicity. The two-miRNA signature was validated by quantitative real-time PCR in HK-2 and NRK-52E cells, rat kidney, serum and urine samples, and serum of an occupational population. Our results indicate that miR-122-5p and miR-326-3p may be potential biomarkers for cadmium exposure.
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