The Complex Toxicity of Tetracycline with Polystyrene Spheres on Gastric Cancer Cells

Xiemin Yan, Yuanyuan Zhang, Yuqin Lu, Lei He, Junhao Qu, Chunxia Zhou, Pengzhi Hong, Shengli Sun, Hui Zhao, Yanqiu Liang, Lei Ren, Yueqin Zhang, Jinjun Chen and Chengyong Li
Additional contact information
Xiemin Yan: College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
Yuanyuan Zhang: Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
Yuqin Lu: School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
Lei He: School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
Junhao Qu: College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
Chunxia Zhou: College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
Pengzhi Hong: College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
Shengli Sun: School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
Hui Zhao: School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
Yanqiu Liang: School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
Lei Ren: College of Agriculture, Guangdong Ocean University, Zhanjiang 524088, China
Yueqin Zhang: College of Agriculture, Guangdong Ocean University, Zhanjiang 524088, China
Jinjun Chen: College of Agriculture, Guangdong Ocean University, Zhanjiang 524088, China
Chengyong Li: Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China

IJERPH, 2020, vol. 17, issue 8, 1-14

Abstract: Nowadays, microplastics (MPs) exist widely in the marine. The surface has strong adsorption capacity for antibiotics in natural environments, and the cytotoxicity of complex are poorly understood. In the study, 500 nm polystyrene (PS-MPs) and 60 nm nanoplastics (PS-NPs) were synthesized. The adsorption of PS to tetracycline (TC) was studied and their toxicity to gastric cancer cells (AGS) was researched. The adsorption experimental results show that PS absorbing capacity increased with increasing TC concentrations. The defense mechanism results show that 60 nm PS-NPs, 500 nm PS-MPs and their complex induce different damage to AGS cells. Furthermore, 600 mg/L PS-NPs and PS-MPs decline cell viability, induce oxidation stress and cause apoptosis. There is more serious damage of 60 nm PS-NPs than 500 nm PS-MPs in cell viability and intracellular reactive oxygen species (ROS). DNA are also damaged by 60 nm PS-NPs and PS-TC NPs, 500 nm PS-MPs and PS-TC MPs, and 60 nm PS-NPs damage DNA more serious than 500 nm PS-MPs. Moreover, 60 nm PS-NPs and PS-TC NPs seem to promote bcl-2 associated X protein (Bax) overexpression. All treatments provided us with evidence on how PS-NPs, PS-MPs and their compounds damaged AGS cells.

Keywords: microplastics; nanoplastics; adsorption; tetracycline; AGS cells (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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