Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8553969 | Toxicology in Vitro | 2018 | 10 Pages |
Abstract
Sertoli cells (SCs) provide physical and nutritional support for spermatogenesis. Dibutyl phthalate (DBP) is a plasticizer that has male reproductive toxicity. The collapse of vimentin in DBP-exposed SCs is thought to induce the sloughing of spermatocytes from seminiferous tubules. In this study, we explored methods to rescue vimentin from collapse in DBP-exposed SCs. DBP not only induced the hyperphosphorylation of vimentin but also triggered endoplasmic reticulum (ER) stress and apoptosis in SCs. Treatment with BAPTA-AM, an antagonist of Ca2+, significantly decreased the level of phosphorylated vimentin, while LY294002, an inhibitor of Akt1, did not. ER stress and apoptosis remained at high levels, and the distribution of vimentin was not improved. ZnSO4 treatment did not decrease the level of phosphorylated vimentin. However, after treatment, ER stress and apoptosis were obviously inhibited, and the distribution of vimentin was reconverted. These results indicated that ZnSO4 could alleviate the collapse of vimentin by attenuating ER stress and apoptosis. This study suggested that an appropriate zinc supply might be a choice to alleviate DBP-induced adverse reproductive effects.
Keywords
DBPMBPhemidesmosomeHSPA5SCsdibutyl phthalatePAEsVimentinGRP78Akt1BTBv-akt murine thymoma viral oncogene homolog 1Endoplasmic reticulum stressPhthalic acid estersBAPTA-AMEctoplasmic specializationTUNELApoptosisSertoli cellsendoplasmic reticulumBlood-testis barriermonobutyl phthalateglucose-regulated protein 78
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Authors
Xi Zhang, Xiaogang Wang, Taixiu Liu, Min Mo, Lin Ao, Jinyi Liu, Jia Cao, Zhihong Cui,