Cheng Cheng , Yanfan Cui , Yujie Wang , Jingfeng Huang , Jiale Ma , Tao Luo , Wen Chen
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引用次数: 0
Abstract
Microplastics and nanoplastics (MNPs) are widespread in the environment and have male reproductive toxicity. However, toxic interventions involving MNPs have not been extensively examined. In this investigation, we explored the elimination capacity of magnetic nano-Fe3O4 on polystyrene microplastics and nanoplastics (PS-MNPs) of different sizes. This study also investigated whether magnetic nano-Fe3O4 could alleviate the toxicity of PS-MNPs in spermatogonial GC-1 cells. After coprecipitation by magnetic nano-Fe3O4 in ddH2O, the removal rates of polystyrene microplastics (PS-MPs, 4 and 10 μm) are much higher than those of PS-NPs (25 nm, 100 nm, and 500 nm). The removal rate of the PS-NPs dramatically enhanced in the salt ion solutions. In addition, 25-nm, 100-nm, 500-nm, and 4-µm PS-MNPs penetrated GC-1 cells. Nevertheless, exclusively 25-nm PS-NPs decreased cell viability, elevated reactive oxygen species, disrupted the mitochondrial membrane potential, and induced apoptosis and inflammation through the P38/MAPK and Nrf2/HO-1 signaling pathways in GC-1 cells. Interestingly, magnetic nano-Fe3O4 alleviated these harmful impacts of the 25-nm PS-NPs on the GC-1 cells. In conclusion, we demonstrated the toxicity of PS-NPs in GC-1 cells and provided a viable way to alleviate their toxicity.
期刊介绍:
Drawing from a large number of disciplines, Reproductive Toxicology publishes timely, original research on the influence of chemical and physical agents on reproduction. Written by and for obstetricians, pediatricians, embryologists, teratologists, geneticists, toxicologists, andrologists, and others interested in detecting potential reproductive hazards, the journal is a forum for communication among researchers and practitioners. Articles focus on the application of in vitro, animal and clinical research to the practice of clinical medicine.
All aspects of reproduction are within the scope of Reproductive Toxicology, including the formation and maturation of male and female gametes, sexual function, the events surrounding the fusion of gametes and the development of the fertilized ovum, nourishment and transport of the conceptus within the genital tract, implantation, embryogenesis, intrauterine growth, placentation and placental function, parturition, lactation and neonatal survival. Adverse reproductive effects in males will be considered as significant as adverse effects occurring in females. To provide a balanced presentation of approaches, equal emphasis will be given to clinical and animal or in vitro work. Typical end points that will be studied by contributors include infertility, sexual dysfunction, spontaneous abortion, malformations, abnormal histogenesis, stillbirth, intrauterine growth retardation, prematurity, behavioral abnormalities, and perinatal mortality.