期刊
ENVIRONMENTAL TOXICOLOGY
卷 33, 期 3, 页码 351-360出版社
WILEY
DOI: 10.1002/tox.22522
关键词
cadmium; development; Leydig cells; steroidogenesis
资金
- National Natural Science Foundation of China [31271607, 81373313]
- Science & Technology Major Project of Guangdong province [2012A080201010, 2013B051000063]
- Guangdong Province Higher Vocational Colleges & School Pearl River Scholar Funded Scheme
Toxic effects of maternal exposure to Cadmium (Cd) on Leydig cells of male offspring arises much concern recently, but its toxic effects on the development of Leydig cells and androgen synthesis have not been elucidated. In this study, female rats were exposed to Cd during gestation and lactation, and the development of Leydig cells in the first filial-generation (F1) male rats was investigated. The steroidogenic signaling pathway and biomarkers related to the development of Leydig cells were detected to disclose how maternal Cd-exposure caused reproductive damage. F1 male rats with maternal Cd-exposure gained a low relative weight of testis and declined levels of steroid hormones. Maternal Cd-exposure interrupted the development of Leydig cells with high expression of SRD5 and cell morphology of immature Leydig cells in adulthood, inhibited the activation of cyclic adenosine monophosphate/ protein kinase A signaling pathway and down-regulated the steroidogenic enzymes. These results would help to disclose the origin of male sexual dysfunction in the developmental stages of Leydig cells.
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