Cadmium (Cd) is a well-recognized male reproductive toxicant that can cause testicular germ cell apoptosis. However, the underlying mechanism needs investigation. CG-1 mouse spermatogonia (spg) cells were treated with 20 μM cadmium chloride (CdCl) for 24 h. Cell apoptosis was measured, and the expressions of key genes and protein biomarkers involved in endoplasmic reticulum (ER) stress were detected, respectively. Untargeted metabolomics was performed to identify different metabolites, and transcriptome analysis was conducted to screen differentially expressed genes (DEGs). Our results indicated that CdCl exposure caused cell apoptosis, and DEGs were involved in several apoptosis-related pathways. Moreover, CdCl exposure apparently increased the mRNA and protein expressions levels of both GRP78 and ATF6α, disrupting the expression of various metabolites, particularly amino acids. Conclusively, our study reveals the pathway of CdCl toxicity on mouse spg, providing a deep understanding of CdCl-induced testicular toxicity.
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| http://dx.doi.org/10.1016/j.reprotox.2024.108664 | DOI Listing |
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