Document Detail

N-acetylcysteine protects against cadmium-induced germ cell apoptosis by inhibiting endoplasmic reticulum stress in testes.
MedLine Citation:
PMID:  23353715     Owner:  NLM     Status:  Publisher    
Cadmium (Cd) is a reproductive toxicant that induces germ cell apoptosis in the testes. Previous studies have demonstrated that endoplasmic reticulum (ER) stress is involved in Cd-induced germ cell apoptosis. The aim of the present study was to investigate the effects of N-acetylcysteine (NAC), an antioxidant, on Cd-induced ER stress and germ cell apoptosis in the testes. Male CD-1 mice were intraperitoneally injected with CdCl(2) (2.0 mg kg(-1)). As expected, acute Cd exposure induced germ cell apoptosis in the testes, as determined by terminal dUTP nick-end labelling (TUNEL). However, the administration of NAC alleviated Cd-induced germ cell apoptosis in the testes. Further analysis showed that NAC attenuated the Cd-induced upregulation of testicular glucose-regulated protein 78 (GRP78), an important ER molecular chaperone. Moreover, NAC inhibited the Cd-induced phosphorylation of testicular eukaryotic translation initiation factor 2α (eIF2α), a downstream target of the double-stranded RNA-activated kinase-like ER kinase (PERK) pathway. In addition, NAC blocked the Cd-induced activation of testicular X binding protein (XBP)-1, indicating that NAC attenuates the Cd-induced ER stress and the unfolded protein response (UPR). Interestingly, NAC almost completely prevented the Cd-induced elevation of C/EBP homologous protein (CHOP) and phosphorylation of c-Jun N-terminal kinase (JNK), two components of the ER stress-mediated apoptotic pathway. In conclusion, NAC protects against Cd-induced germ cell apoptosis by inhibiting endoplasmic reticulum stress in the testes.Asian Journal of Andrology advance online publication, 28 January 2013; doi:10.1038/aja.2012.129.
Yan-Li Ji; Hua Wang; Cheng Zhang; Ying Zhang; Mei Zhao; Yuan-Hua Chen; De-Xiang Xu
Related Documents :
23280395 - Folate deficiency enhances the inflammatory response of macrophages.
25029205 - Stimulation of innate immune cells by light-activated tlr7/8 agonists.
9568105 - Tempicol-2 (4-hydroxy-4-(2-picolyl)-2,2,6,6-tetramethylpiperidine-1-oxyl), a stable fre...
24321865 - Synthesis and biological evaluation of allylated and prenylated mono-carbonyl analogs o...
17684755 - A novel dual staining method for identification of apoptotic cells reveals a modest apo...
24787465 - Serum cytokines are increased and circulating micronutrients are not altered in subject...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-28
Journal Detail:
Title:  Asian journal of andrology     Volume:  -     ISSN:  1745-7262     ISO Abbreviation:  Asian J. Androl.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100942132     Medline TA:  Asian J Androl     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Panitumumab following disease progression on cetuximab in patients with metastatic colorectal cancer...
Next Document:  Exploration of functional health, mental well-being and cross-sex hormone use in a sample of Thai ma...